Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2018 IBM Corporation and others. * * This program and the accompanying materials * are made available under the terms of the Eclipse Public License 2.0 * which accompanies this distribution, and is available at * https://www.eclipse.org/legal/epl-2.0/ * * SPDX-License-Identifier: EPL-2.0 * * Contributors: * IBM Corporation - initial API and implementation * Roland Oldenburg <r.oldenburg@hsp-software.de> - Bug 292199 * Conrad Groth - Bug 384906 *******************************************************************************/ package org.eclipse.swt.widgets; //import java.util.*; import org.eclipse.swt.*; import org.eclipse.swt.events.*; import org.eclipse.swt.graphics.*; import org.eclipse.swt.internal.*; import org.eclipse.swt.internal.win32.*; /** * Instances of this class implement a selectable user interface * object that displays a list of images and strings and issues * notification when selected. * <p> * The item children that may be added to instances of this class * must be of type <code>TableItem</code>. * </p><p> * Style <code>VIRTUAL</code> is used to create a <code>Table</code> whose * <code>TableItem</code>s are to be populated by the client on an on-demand basis * instead of up-front. This can provide significant performance improvements for * tables that are very large or for which <code>TableItem</code> population is * expensive (for example, retrieving values from an external source). * </p><p> * Here is an example of using a <code>Table</code> with style <code>VIRTUAL</code>:</p> * <pre><code> * final Table table = new Table (parent, SWT.VIRTUAL | SWT.BORDER); * table.setItemCount (1000000); * table.addListener (SWT.SetData, new Listener () { * public void handleEvent (Event event) { * TableItem item = (TableItem) event.item; * int index = table.indexOf (item); * item.setText ("Item " + index); * System.out.println (item.getText ()); * } * }); * </code></pre> * <p> * Note that although this class is a subclass of <code>Composite</code>, * it does not normally make sense to add <code>Control</code> children to * it, or set a layout on it, unless implementing something like a cell * editor. * </p> * <dl> * <dt><b>Styles:</b></dt> * <dd>SINGLE, MULTI, CHECK, FULL_SELECTION, HIDE_SELECTION, VIRTUAL, NO_SCROLL</dd> * <dt><b>Events:</b></dt> * <dd>Selection, DefaultSelection, SetData, MeasureItem, EraseItem, PaintItem</dd> * </dl> * <p> * Note: Only one of the styles SINGLE, and MULTI may be specified. * </p><p> * IMPORTANT: This class is <em>not</em> intended to be subclassed. * </p> * * @see <a href="http://www.eclipse.org/swt/snippets/#table">Table, TableItem, TableColumn snippets</a> * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> * @noextend This class is not intended to be subclassed by clients. */ public class Table extends Composite { TableItem[] items; int[] keys; TableColumn[] columns; int columnCount, customCount, keyCount; ImageList imageList, headerImageList; TableItem currentItem; TableColumn sortColumn; RECT focusRect; boolean[] columnVisible; long headerToolTipHandle, hwndHeader; boolean ignoreCustomDraw, ignoreDrawForeground, ignoreDrawBackground, ignoreDrawFocus, ignoreDrawSelection, ignoreDrawHot; boolean customDraw, dragStarted, explorerTheme, firstColumnImage, fixScrollWidth, tipRequested, wasSelected, wasResized, painted; boolean ignoreActivate, ignoreSelect, ignoreShrink, ignoreResize, ignoreColumnMove, ignoreColumnResize, fullRowSelect, settingItemHeight; boolean headerItemDragging; int itemHeight, lastIndexOf, lastWidth, sortDirection, resizeCount, selectionForeground, hotIndex; int headerBackground = -1; int headerForeground = -1; static /*final*/ long HeaderProc; static final int INSET = 4; static final int GRID_WIDTH = 1; static final int SORT_WIDTH = 10; static final int HEADER_MARGIN = 12; static final int HEADER_EXTRA = 3; static final int VISTA_EXTRA = 2; static final int EXPLORER_EXTRA = 2; static final int H_SCROLL_LIMIT = 32; static final int V_SCROLL_LIMIT = 16; static final int DRAG_IMAGE_SIZE = 301; static boolean COMPRESS_ITEMS = true; static final long TableProc; static final TCHAR TableClass = new TCHAR(0, OS.WC_LISTVIEW, true); static final TCHAR HeaderClass = new TCHAR(0, OS.WC_HEADER, true); static { WNDCLASS lpWndClass = new WNDCLASS(); OS.GetClassInfo(0, TableClass, lpWndClass); TableProc = lpWndClass.lpfnWndProc; OS.GetClassInfo(0, HeaderClass, lpWndClass); HeaderProc = lpWndClass.lpfnWndProc; } /** * Constructs a new instance of this class given its parent * and a style value describing its behavior and appearance. * <p> * The style value is either one of the style constants defined in * class <code>SWT</code> which is applicable to instances of this * class, or must be built by <em>bitwise OR</em>'ing together * (that is, using the <code>int</code> "|" operator) two or more * of those <code>SWT</code> style constants. The class description * lists the style constants that are applicable to the class. * Style bits are also inherited from superclasses. * </p> * * @param parent a composite control which will be the parent of the new instance (cannot be null) * @param style the style of control to construct * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> * </ul> * * @see SWT#SINGLE * @see SWT#MULTI * @see SWT#CHECK * @see SWT#FULL_SELECTION * @see SWT#HIDE_SELECTION * @see SWT#VIRTUAL * @see SWT#NO_SCROLL * @see Widget#checkSubclass * @see Widget#getStyle */ public Table(Composite parent, int style) { super(parent, checkStyle(style)); } @Override void _addListener(int eventType, Listener listener) { super._addListener(eventType, listener); switch (eventType) { case SWT.MeasureItem: case SWT.EraseItem: case SWT.PaintItem: setCustomDraw(true); setBackgroundTransparent(true); break; } } boolean _checkGrow(int count) { //TODO - code could be shared but it would mix keyed and non-keyed logic if (keys == null) { if (count == items.length) { /* * Grow the array faster when redraw is off or the * table is not visible. When the table is painted, * the items array is resized to be smaller to reduce * memory usage. */ boolean small = getDrawing() && OS.IsWindowVisible(handle); int length = small ? items.length + 4 : Math.max(4, items.length * 3 / 2); TableItem[] newItems = new TableItem[length]; System.arraycopy(items, 0, newItems, 0, items.length); items = newItems; } } else { //TODO - don't shrink when count is very small (ie. 2 or 4 elements)? //TODO - why? if setItemCount(1000000) is used after a shrink, then we won't compress //TODO - get rid of ignoreShrink? if (!ignoreShrink && keyCount > count / 2) { boolean small = getDrawing() && OS.IsWindowVisible(handle); int length = small ? count + 4 : Math.max(4, count * 3 / 2); TableItem[] newItems = new TableItem[length]; for (int i = 0; i < keyCount; i++) { newItems[keys[i]] = items[i]; } items = newItems; keys = null; keyCount = 0; return true; } else { //TODO - grow by page size or screen height? //TODO - experiment to determine an optimal growth rate for keys if (keyCount == keys.length) { boolean small = getDrawing() && OS.IsWindowVisible(handle); int length = small ? keys.length + 4 : Math.max(4, keys.length * 3 / 2); int[] newKeys = new int[length]; System.arraycopy(keys, 0, newKeys, 0, keys.length); keys = newKeys; TableItem[] newItems = new TableItem[length]; System.arraycopy(items, 0, newItems, 0, items.length); items = newItems; } } } return false; } void _checkShrink() { //TODO - code could be shared but it would mix keyed and non-keyed logic //TODO - move ignoreShrink test back to the caller if (keys == null) { if (!ignoreShrink) { /* Resize the item array to match the item count */ int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); /* * Bug in Windows. Call to OS.LVM_GETITEMCOUNT unexpectedly returns zero, * leading to a possible "ArrayIndexOutOfBoundsException: 4" in SWT table. * So, double check for any existing living items in the table and fixing * the count value. Refer bug 292199. */ if (count == 0 && items.length > 4) { while (count < items.length && items[count] != null && !items[count].isDisposed()) { count++; } } if (items.length > 4 && items.length - count > 3) { int length = Math.max(4, (count + 3) / 4 * 4); TableItem[] newItems = new TableItem[length]; System.arraycopy(items, 0, newItems, 0, count); items = newItems; } } } else { if (!ignoreShrink) { if (keys.length > 4 && keys.length - keyCount > 3) { int length = Math.max(4, (keyCount + 3) / 4 * 4); int[] newKeys = new int[length]; System.arraycopy(keys, 0, newKeys, 0, keyCount); keys = newKeys; TableItem[] newItems = new TableItem[length]; System.arraycopy(items, 0, newItems, 0, keyCount); items = newItems; } } } } void _clearItems() { items = null; keys = null; keyCount = 0; } TableItem _getItem(int index) { return _getItem(index, true); } //TODO - check senders who have count (watch methods that change the count) TableItem _getItem(int index, boolean create) { return _getItem(index, create, -1); } TableItem _getItem(int index, boolean create, int count) { //TODO - code could be shared but it would mix keyed and non-keyed logic if (keys == null) { if (index >= items.length) return null; if ((style & SWT.VIRTUAL) == 0 || !create) return items[index]; if (items[index] != null) return items[index]; return items[index] = new TableItem(this, SWT.NONE, -1, false); } else { if ((style & SWT.VIRTUAL) == 0 || !create) { if (keyCount == 0) return null; if (index > keys[keyCount - 1]) return null; } int keyIndex = binarySearch(keys, 0, keyCount, index); if ((style & SWT.VIRTUAL) == 0 || !create) { return keyIndex < 0 ? null : items[keyIndex]; } if (keyIndex < 0) { if (count == -1) { count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); } //TODO - _checkGrow() doesn't return a value, check keys == null instead if (_checkGrow(count)) { if (items[index] != null) return items[index]; return items[index] = new TableItem(this, SWT.NONE, -1, false); } keyIndex = -keyIndex - 1; if (keyIndex < keyCount) { System.arraycopy(keys, keyIndex, keys, keyIndex + 1, keyCount - keyIndex); System.arraycopy(items, keyIndex, items, keyIndex + 1, keyCount - keyIndex); } keyCount++; keys[keyIndex] = index; } else { if (items[keyIndex] != null) return items[keyIndex]; } return items[keyIndex] = new TableItem(this, SWT.NONE, -1, false); } } void _getItems(TableItem[] result, int count) { if (keys == null) { System.arraycopy(items, 0, result, 0, count); } else { /* NOTE: Null items will be in the array when keyCount != count */ for (int i = 0; i < keyCount; i++) { if (keys[i] >= count) break; result[keys[i]] = items[keys[i]]; } } } boolean _hasItems() { return items != null; } void _initItems() { items = new TableItem[4]; if (COMPRESS_ITEMS) { if ((style & SWT.VIRTUAL) != 0) { keyCount = 0; keys = new int[4]; } } } /* NOTE: The array has already been grown to have space for the new item */ void _insertItem(int index, TableItem item, int count) { if (keys == null) { System.arraycopy(items, index, items, index + 1, count - index); items[index] = item; } else { int keyIndex = binarySearch(keys, 0, keyCount, index); if (keyIndex < 0) keyIndex = -keyIndex - 1; System.arraycopy(keys, keyIndex, keys, keyIndex + 1, keyCount - keyIndex); keys[keyIndex] = index; System.arraycopy(items, keyIndex, items, keyIndex + 1, keyCount - keyIndex); items[keyIndex] = item; keyCount++; for (int i = keyIndex + 1; i < keyCount; i++) keys[i]++; } } void _removeItem(int index, int count) { if (keys == null) { System.arraycopy(items, index + 1, items, index, --count - index); items[count] = null; } else { int keyIndex = binarySearch(keys, 0, keyCount, index); if (keyIndex < 0) { keyIndex = -keyIndex - 1; } else { --keyCount; System.arraycopy(keys, keyIndex + 1, keys, keyIndex, keyCount - keyIndex); keys[keyCount] = 0; System.arraycopy(items, keyIndex + 1, items, keyIndex, keyCount - keyIndex); items[keyCount] = null; } for (int i = keyIndex; i < keyCount; i++) --keys[i]; } } /* NOTE: Removes from start to index - 1 */ void _removeItems(int start, int index, int count) { if (keys == null) { System.arraycopy(items, index, items, start, count - index); for (int i = count - (index - start); i < count; i++) items[i] = null; } else { int end = index; int left = binarySearch(keys, 0, keyCount, start); if (left < 0) left = -left - 1; int right = binarySearch(keys, left, keyCount, end); if (right < 0) right = -right - 1; //TODO - optimize when left and right are the same System.arraycopy(keys, right, keys, left, keyCount - right); for (int i = keyCount - (right - left); i < keyCount; i++) keys[i] = 0; System.arraycopy(items, right, items, left, keyCount - right); for (int i = keyCount - (right - left); i < keyCount; i++) items[i] = null; keyCount -= (right - left); for (int i = left; i < keyCount; i++) keys[i] -= (right - left); } } void _setItemCount(int count, int itemCount) { if (keys == null) { int length = Math.max(4, (count + 3) / 4 * 4); TableItem[] newItems = new TableItem[length]; System.arraycopy(items, 0, newItems, 0, Math.min(count, itemCount)); items = newItems; } else { int index = Math.min(count, itemCount); keyCount = binarySearch(keys, 0, keyCount, index); if (keyCount < 0) keyCount = -keyCount - 1; int length = Math.max(4, (keyCount + 3) / 4 * 4); int[] newKeys = new int[length]; System.arraycopy(keys, 0, newKeys, 0, keyCount); keys = newKeys; TableItem[] newItems = new TableItem[length]; System.arraycopy(items, 0, newItems, 0, keyCount); items = newItems; } } /** * Adds the listener to the collection of listeners who will * be notified when the user changes the receiver's selection, by sending * it one of the messages defined in the <code>SelectionListener</code> * interface. * <p> * When <code>widgetSelected</code> is called, the item field of the event object is valid. * If the receiver has the <code>SWT.CHECK</code> style and the check selection changes, * the event object detail field contains the value <code>SWT.CHECK</code>. * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. * The item field of the event object is valid for default selection, but the detail field is not used. * </p> * * @param listener the listener which should be notified when the user changes the receiver's selection * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see SelectionListener * @see #removeSelectionListener * @see SelectionEvent */ public void addSelectionListener(SelectionListener listener) { checkWidget(); if (listener == null) error(SWT.ERROR_NULL_ARGUMENT); TypedListener typedListener = new TypedListener(listener); addListener(SWT.Selection, typedListener); addListener(SWT.DefaultSelection, typedListener); } @Override long callWindowProc(long hwnd, int msg, long wParam, long lParam) { return callWindowProc(hwnd, msg, wParam, lParam, false); } long callWindowProc(long hwnd, int msg, long wParam, long lParam, boolean forceSelect) { if (handle == 0) return 0; if (hwndHeader != 0 && hwnd == hwndHeader) { return OS.CallWindowProc(HeaderProc, hwnd, msg, wParam, lParam); } int topIndex = 0; boolean checkSelection = false, checkActivate = false, redraw = false; switch (msg) { /* Keyboard messages */ /* * Feature in Windows. Windows sends LVN_ITEMACTIVATE from WM_KEYDOWN * instead of WM_CHAR. This means that application code that expects * to consume the key press and therefore avoid a SWT.DefaultSelection * event will fail. The fix is to ignore LVN_ITEMACTIVATE when it is * caused by WM_KEYDOWN and send SWT.DefaultSelection from WM_CHAR. */ case OS.WM_KEYDOWN: checkActivate = true; //FALL THROUGH case OS.WM_CHAR: case OS.WM_IME_CHAR: case OS.WM_KEYUP: case OS.WM_SYSCHAR: case OS.WM_SYSKEYDOWN: case OS.WM_SYSKEYUP: //FALL THROUGH /* Scroll messages */ case OS.WM_HSCROLL: case OS.WM_VSCROLL: //FALL THROUGH /* Resize messages */ case OS.WM_WINDOWPOSCHANGED: redraw = findImageControl() != null && getDrawing() && OS.IsWindowVisible(handle); if (redraw) { /* * Feature in Windows. When LVM_SETBKCOLOR is used with CLR_NONE * to make the background of the table transparent, drawing becomes * slow. The fix is to temporarily clear CLR_NONE when redraw is * turned off. */ OS.DefWindowProc(handle, OS.WM_SETREDRAW, 0, 0); OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, 0xFFFFFF); } //FALL THROUGH /* Mouse messages */ case OS.WM_LBUTTONDBLCLK: case OS.WM_LBUTTONDOWN: case OS.WM_LBUTTONUP: case OS.WM_MBUTTONDBLCLK: case OS.WM_MBUTTONDOWN: case OS.WM_MBUTTONUP: case OS.WM_MOUSEHOVER: case OS.WM_MOUSELEAVE: case OS.WM_MOUSEMOVE: case OS.WM_MOUSEWHEEL: case OS.WM_RBUTTONDBLCLK: case OS.WM_RBUTTONDOWN: case OS.WM_RBUTTONUP: case OS.WM_XBUTTONDBLCLK: case OS.WM_XBUTTONDOWN: case OS.WM_XBUTTONUP: checkSelection = true; //FALL THROUGH /* Other messages */ case OS.WM_SETFONT: case OS.WM_TIMER: { if (findImageControl() != null) { topIndex = (int) OS.SendMessage(handle, OS.LVM_GETTOPINDEX, 0, 0); } } } boolean oldSelected = wasSelected; if (checkSelection) wasSelected = false; if (checkActivate) ignoreActivate = true; /* * Bug in Windows. For some reason, when the WS_EX_COMPOSITED * style is set in a parent of a table and the header is visible, * Windows issues an endless stream of WM_PAINT messages. The * fix is to call BeginPaint() and EndPaint() outside of WM_PAINT * and pass the paint HDC in to the window proc. */ boolean fixPaint = false; if (msg == OS.WM_PAINT) { int bits0 = OS.GetWindowLong(handle, OS.GWL_STYLE); if ((bits0 & OS.LVS_NOCOLUMNHEADER) == 0) { long hwndParent = OS.GetParent(handle), hwndOwner = 0; while (hwndParent != 0) { int bits1 = OS.GetWindowLong(hwndParent, OS.GWL_EXSTYLE); if ((bits1 & OS.WS_EX_COMPOSITED) != 0) { fixPaint = true; break; } hwndOwner = OS.GetWindow(hwndParent, OS.GW_OWNER); if (hwndOwner != 0) break; hwndParent = OS.GetParent(hwndParent); } } } /* Remove the scroll bars that Windows keeps automatically adding */ boolean fixScroll = false; if ((style & SWT.H_SCROLL) == 0 || (style & SWT.V_SCROLL) == 0) { switch (msg) { case OS.WM_PAINT: case OS.WM_NCPAINT: case OS.WM_WINDOWPOSCHANGING: { int bits = OS.GetWindowLong(hwnd, OS.GWL_STYLE); if ((style & SWT.H_SCROLL) == 0 && (bits & OS.WS_HSCROLL) != 0) { fixScroll = true; bits &= ~OS.WS_HSCROLL; } if ((style & SWT.V_SCROLL) == 0 && (bits & OS.WS_VSCROLL) != 0) { fixScroll = true; bits &= ~OS.WS_VSCROLL; } if (fixScroll) OS.SetWindowLong(handle, OS.GWL_STYLE, bits); } } } long code = 0; if (fixPaint) { PAINTSTRUCT ps = new PAINTSTRUCT(); long hDC = OS.BeginPaint(hwnd, ps); code = OS.CallWindowProc(TableProc, hwnd, OS.WM_PAINT, hDC, lParam); OS.EndPaint(hwnd, ps); } else { code = OS.CallWindowProc(TableProc, hwnd, msg, wParam, lParam); } if (fixScroll) { int flags = OS.RDW_FRAME | OS.RDW_INVALIDATE; OS.RedrawWindow(handle, null, 0, flags); } if (checkActivate) ignoreActivate = false; if (checkSelection) { if (wasSelected || forceSelect) { Event event = new Event(); int index = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); if (index != -1) event.item = _getItem(index); sendSelectionEvent(SWT.Selection, event, false); } wasSelected = oldSelected; } switch (msg) { /* Keyboard messages */ case OS.WM_KEYDOWN: case OS.WM_CHAR: case OS.WM_IME_CHAR: case OS.WM_KEYUP: case OS.WM_SYSCHAR: case OS.WM_SYSKEYDOWN: case OS.WM_SYSKEYUP: //FALL THROUGH /* Scroll messages */ case OS.WM_HSCROLL: case OS.WM_VSCROLL: //FALL THROUGH /* Resize messages */ case OS.WM_WINDOWPOSCHANGED: if (redraw) { OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, OS.CLR_NONE); OS.DefWindowProc(handle, OS.WM_SETREDRAW, 1, 0); OS.InvalidateRect(handle, null, true); long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); if (hwndHeader != 0) OS.InvalidateRect(hwndHeader, null, true); } //FALL THROUGH /* Mouse messages */ case OS.WM_LBUTTONDBLCLK: case OS.WM_LBUTTONDOWN: case OS.WM_LBUTTONUP: case OS.WM_MBUTTONDBLCLK: case OS.WM_MBUTTONDOWN: case OS.WM_MBUTTONUP: case OS.WM_MOUSEHOVER: case OS.WM_MOUSELEAVE: case OS.WM_MOUSEMOVE: case OS.WM_MOUSEWHEEL: case OS.WM_RBUTTONDBLCLK: case OS.WM_RBUTTONDOWN: case OS.WM_RBUTTONUP: case OS.WM_XBUTTONDBLCLK: case OS.WM_XBUTTONDOWN: case OS.WM_XBUTTONUP: //FALL THROUGH /* Other messages */ case OS.WM_SETFONT: case OS.WM_TIMER: { if (findImageControl() != null) { if (topIndex != OS.SendMessage(handle, OS.LVM_GETTOPINDEX, 0, 0)) { OS.InvalidateRect(handle, null, true); } } break; } case OS.WM_PAINT: painted = true; break; } return code; } static int checkStyle(int style) { /* * Feature in Windows. Even when WS_HSCROLL or * WS_VSCROLL is not specified, Windows creates * trees and tables with scroll bars. The fix * is to set H_SCROLL and V_SCROLL. * * NOTE: This code appears on all platforms so that * applications have consistent scroll bar behavior. */ if ((style & SWT.NO_SCROLL) == 0) { style |= SWT.H_SCROLL | SWT.V_SCROLL; } return checkBits(style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0); } LRESULT CDDS_ITEMPOSTPAINT(NMLVCUSTOMDRAW nmcd, long wParam, long lParam) { long hDC = nmcd.hdc; if (explorerTheme && !ignoreCustomDraw) { hotIndex = -1; if (hooks(SWT.EraseItem) && nmcd.left != nmcd.right) { OS.RestoreDC(hDC, -1); } } /* * Bug in Windows. When the table has the extended style * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with * CLR_NONE to make the table transparent, Windows fills * a black rectangle around any column that contains an * image. The fix is clear LVS_EX_FULLROWSELECT during * custom draw. * * NOTE: Since CDIS_FOCUS is cleared during custom draw, * it is necessary to draw the focus rectangle after the * item has been drawn. */ if (!ignoreCustomDraw && !ignoreDrawFocus && nmcd.left != nmcd.right) { if (OS.IsWindowVisible(handle) && OS.IsWindowEnabled(handle)) { if (!explorerTheme && (style & SWT.FULL_SELECTION) != 0) { if ((int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) == OS.CLR_NONE) { int dwExStyle = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); if ((dwExStyle & OS.LVS_EX_FULLROWSELECT) == 0) { // if ((nmcd.uItemState & OS.CDIS_FOCUS) != 0) { if (OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED) == nmcd.dwItemSpec) { if (handle == OS.GetFocus()) { int uiState = (int) OS.SendMessage(handle, OS.WM_QUERYUISTATE, 0, 0); if ((uiState & OS.UISF_HIDEFOCUS) == 0) { RECT rect = new RECT(); rect.left = OS.LVIR_BOUNDS; boolean oldIgnore = ignoreCustomDraw; ignoreCustomDraw = true; OS.SendMessage(handle, OS.LVM_GETITEMRECT, nmcd.dwItemSpec, rect); long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); int index = (int) OS.SendMessage(hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); RECT itemRect = new RECT(); if (index == 0) { itemRect.left = OS.LVIR_LABEL; OS.SendMessage(handle, OS.LVM_GETITEMRECT, index, itemRect); } else { itemRect.top = index; itemRect.left = OS.LVIR_ICON; OS.SendMessage(handle, OS.LVM_GETSUBITEMRECT, nmcd.dwItemSpec, itemRect); } ignoreCustomDraw = oldIgnore; rect.left = itemRect.left; OS.DrawFocusRect(nmcd.hdc, rect); } } } } } } } } return null; } LRESULT CDDS_ITEMPREPAINT(NMLVCUSTOMDRAW nmcd, long wParam, long lParam) { /* * Bug in Windows. When the table has the extended style * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with * CLR_NONE to make the table transparent, Windows fills * a black rectangle around any column that contains an * image. The fix is clear LVS_EX_FULLROWSELECT during * custom draw. * * NOTE: It is also necessary to clear CDIS_FOCUS to stop * the table from drawing the focus rectangle around the * first item instead of the full row. */ if (!ignoreCustomDraw) { if (OS.IsWindowVisible(handle) && OS.IsWindowEnabled(handle)) { if (!explorerTheme && (style & SWT.FULL_SELECTION) != 0) { if ((int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) == OS.CLR_NONE) { int dwExStyle = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); if ((dwExStyle & OS.LVS_EX_FULLROWSELECT) == 0) { if ((nmcd.uItemState & OS.CDIS_FOCUS) != 0) { nmcd.uItemState &= ~OS.CDIS_FOCUS; OS.MoveMemory(lParam, nmcd, NMLVCUSTOMDRAW.sizeof); } } } } } } if (explorerTheme && !ignoreCustomDraw) { hotIndex = (nmcd.uItemState & OS.CDIS_HOT) != 0 ? (int) nmcd.dwItemSpec : -1; if (hooks(SWT.EraseItem) && nmcd.left != nmcd.right) { OS.SaveDC(nmcd.hdc); long hrgn = OS.CreateRectRgn(0, 0, 0, 0); OS.SelectClipRgn(nmcd.hdc, hrgn); OS.DeleteObject(hrgn); } } return new LRESULT(OS.CDRF_NOTIFYSUBITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT); } LRESULT CDDS_POSTPAINT(NMLVCUSTOMDRAW nmcd, long wParam, long lParam) { if (ignoreCustomDraw) return null; /* * Bug in Windows. When the table has the extended style * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with * CLR_NONE to make the table transparent, Windows fills * a black rectangle around any column that contains an * image. The fix is clear LVS_EX_FULLROWSELECT during * custom draw. */ if (--customCount == 0 && OS.IsWindowVisible(handle)) { if (!explorerTheme && (style & SWT.FULL_SELECTION) != 0) { if ((int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) == OS.CLR_NONE) { int dwExStyle = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); if ((dwExStyle & OS.LVS_EX_FULLROWSELECT) == 0) { int bits = OS.LVS_EX_FULLROWSELECT; /* * Feature in Windows. When LVM_SETEXTENDEDLISTVIEWSTYLE is * used to set or clear the extended style bits and the table * has a tooltip, the tooltip is hidden. The fix is to clear * the tooltip before setting the bits and then reset it. */ long hwndToolTip = OS.SendMessage(handle, OS.LVM_SETTOOLTIPS, 0, 0); long rgn = OS.CreateRectRgn(0, 0, 0, 0); int result = OS.GetUpdateRgn(handle, rgn, true); OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, bits); OS.ValidateRect(handle, null); if (result != OS.NULLREGION) OS.InvalidateRgn(handle, rgn, true); OS.DeleteObject(rgn); /* * Bug in Windows. Despite the documentation, LVM_SETTOOLTIPS * uses WPARAM instead of LPARAM for the new tooltip The fix * is to put the tooltip in both parameters. */ hwndToolTip = OS.SendMessage(handle, OS.LVM_SETTOOLTIPS, hwndToolTip, hwndToolTip); } } } } return null; } LRESULT CDDS_PREPAINT(NMLVCUSTOMDRAW nmcd, long wParam, long lParam) { if (ignoreCustomDraw) { return new LRESULT(OS.CDRF_NOTIFYITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT); } /* * Bug in Windows. When the table has the extended style * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with * CLR_NONE to make the table transparent, Windows fills * a black rectangle around any column that contains an * image. The fix is clear LVS_EX_FULLROWSELECT during * custom draw. */ if (customCount++ == 0 && OS.IsWindowVisible(handle)) { if (!explorerTheme && (style & SWT.FULL_SELECTION) != 0) { if ((int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) == OS.CLR_NONE) { int dwExStyle = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); if ((dwExStyle & OS.LVS_EX_FULLROWSELECT) != 0) { int bits = OS.LVS_EX_FULLROWSELECT; /* * Feature in Windows. When LVM_SETEXTENDEDLISTVIEWSTYLE is * used to set or clear the extended style bits and the table * has a tooltip, the tooltip is hidden. The fix is to clear * the tooltip before setting the bits and then reset it. */ long hwndToolTip = OS.SendMessage(handle, OS.LVM_SETTOOLTIPS, 0, 0); long rgn = OS.CreateRectRgn(0, 0, 0, 0); int result = OS.GetUpdateRgn(handle, rgn, true); OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, 0); OS.ValidateRect(handle, null); if (result != OS.NULLREGION) OS.InvalidateRgn(handle, rgn, true); OS.DeleteObject(rgn); /* * Bug in Windows. Despite the documentation, LVM_SETTOOLTIPS * uses WPARAM instead of LPARAM for the new tooltip The fix * is to put the tooltip in both parameters. */ hwndToolTip = OS.SendMessage(handle, OS.LVM_SETTOOLTIPS, hwndToolTip, hwndToolTip); } } } } if (OS.IsWindowVisible(handle)) { /* * Feature in Windows. On Vista using the explorer theme, * Windows draws a vertical line to separate columns. When * there is only a single column, the line looks strange. * The fix is to draw the background using custom draw. */ RECT rect = new RECT(); OS.SetRect(rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); if (explorerTheme && columnCount == 0) { long hDC = nmcd.hdc; if (OS.IsWindowEnabled(handle) || findImageControl() != null) { drawBackground(hDC, rect); } else { fillBackground(hDC, OS.GetSysColor(OS.COLOR_3DFACE), rect); } } else { Control control = findBackgroundControl(); if (control != null && control.backgroundImage != null) { fillImageBackground(nmcd.hdc, control, rect, 0, 0); } else { final boolean enabled = OS.IsWindowEnabled(handle); if (enabled && (int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) == OS.CLR_NONE || !enabled && hasCustomBackground()) { if (control == null) control = this; fillBackground(nmcd.hdc, control.getBackgroundPixel(), rect); if (OS.IsAppThemed()) { if (sortColumn != null && sortDirection != SWT.NONE) { int index = indexOf(sortColumn); if (index != -1) { parent.forceResize(); int clrSortBk = getSortColumnPixel(); RECT columnRect = new RECT(), headerRect = new RECT(); OS.GetClientRect(handle, columnRect); long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); if (OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, index, headerRect) != 0) { OS.MapWindowPoints(hwndHeader, handle, headerRect, 2); columnRect.left = headerRect.left; columnRect.right = headerRect.right; if (OS.IntersectRect(columnRect, columnRect, rect)) { fillBackground(nmcd.hdc, clrSortBk, columnRect); } } } } } } } } } return new LRESULT(OS.CDRF_NOTIFYITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT); } LRESULT CDDS_SUBITEMPOSTPAINT(NMLVCUSTOMDRAW nmcd, long wParam, long lParam) { if (ignoreCustomDraw) return null; if (nmcd.left == nmcd.right) return new LRESULT(OS.CDRF_DODEFAULT); long hDC = nmcd.hdc; if (ignoreDrawForeground) OS.RestoreDC(hDC, -1); if (OS.IsWindowVisible(handle)) { /* * Feature in Windows. When there is a sort column, the sort column * color draws on top of the background color for an item. The fix * is to clear the sort column in CDDS_SUBITEMPREPAINT, and reset it * in CDDS_SUBITEMPOSTPAINT. * * Update region is saved and restored around LVM_SETSELECTEDCOLUMN * to prevent infinite WM_PAINT on Vista. */ if ((int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) != OS.CLR_NONE) { if ((sortDirection & (SWT.UP | SWT.DOWN)) != 0) { if (sortColumn != null && !sortColumn.isDisposed()) { int oldColumn = (int) OS.SendMessage(handle, OS.LVM_GETSELECTEDCOLUMN, 0, 0); if (oldColumn == -1) { int newColumn = indexOf(sortColumn); long rgn = OS.CreateRectRgn(0, 0, 0, 0); int result = OS.GetUpdateRgn(handle, rgn, true); OS.SendMessage(handle, OS.LVM_SETSELECTEDCOLUMN, newColumn, 0); OS.ValidateRect(handle, null); if (result != OS.NULLREGION) OS.InvalidateRgn(handle, rgn, true); OS.DeleteObject(rgn); } } } } if (hooks(SWT.PaintItem)) { TableItem item = _getItem((int) nmcd.dwItemSpec); sendPaintItemEvent(item, nmcd); //widget could be disposed at this point } if (!ignoreDrawFocus && focusRect != null) { OS.SetTextColor(nmcd.hdc, 0); OS.SetBkColor(nmcd.hdc, 0xFFFFFF); OS.DrawFocusRect(nmcd.hdc, focusRect); focusRect = null; } } return null; } LRESULT CDDS_SUBITEMPREPAINT(NMLVCUSTOMDRAW nmcd, long wParam, long lParam) { long hDC = nmcd.hdc; if (explorerTheme && !ignoreCustomDraw && hooks(SWT.EraseItem) && (nmcd.left != nmcd.right)) { OS.RestoreDC(hDC, -1); } /* * Feature in Windows. When a new table item is inserted * using LVM_INSERTITEM in a table that is transparent * (ie. LVM_SETBKCOLOR has been called with CLR_NONE), * TVM_INSERTITEM calls NM_CUSTOMDRAW before the new item * has been added to the array. The fix is to check for * null. * * NOTE: Force the item to be created if it does not exist. */ TableItem item = _getItem((int) nmcd.dwItemSpec); if (item == null || item.isDisposed()) return null; long hFont = item.fontHandle(nmcd.iSubItem); if (hFont != -1) OS.SelectObject(hDC, hFont); if (ignoreCustomDraw || (nmcd.left == nmcd.right)) { return new LRESULT(hFont == -1 ? OS.CDRF_DODEFAULT : OS.CDRF_NEWFONT); } int code = OS.CDRF_DODEFAULT; selectionForeground = -1; ignoreDrawForeground = ignoreDrawSelection = ignoreDrawFocus = ignoreDrawBackground = false; if (OS.IsWindowVisible(handle)) { Event measureEvent = null; if (hooks(SWT.MeasureItem)) { measureEvent = sendMeasureItemEvent(item, (int) nmcd.dwItemSpec, nmcd.iSubItem, nmcd.hdc); if (isDisposed() || item.isDisposed()) return null; } if (hooks(SWT.EraseItem)) { sendEraseItemEvent(item, nmcd, lParam, measureEvent); if (isDisposed() || item.isDisposed()) return null; code |= OS.CDRF_NOTIFYPOSTPAINT; } if (ignoreDrawForeground || hooks(SWT.PaintItem)) code |= OS.CDRF_NOTIFYPOSTPAINT; } int clrText = item.cellForeground != null ? item.cellForeground[nmcd.iSubItem] : -1; if (clrText == -1) clrText = item.foreground; int clrTextBk = item.cellBackground != null ? item.cellBackground[nmcd.iSubItem] : -1; if (clrTextBk == -1) clrTextBk = item.background; if (selectionForeground != -1) clrText = selectionForeground; /* * Bug in Windows. When the table has the extended style * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with * CLR_NONE to make the table transparent, Windows draws * a black rectangle around any column that contains an * image. The fix is emulate LVS_EX_FULLROWSELECT by * drawing the selection. */ final boolean enabled = OS.IsWindowEnabled(handle); if (OS.IsWindowVisible(handle) && enabled) { if (!explorerTheme && !ignoreDrawSelection && (style & SWT.FULL_SELECTION) != 0) { int bits = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); if ((bits & OS.LVS_EX_FULLROWSELECT) == 0) { /* * Bug in Windows. For some reason, CDIS_SELECTED always set, * even for items that are not selected. The fix is to get * the selection state from the item. */ LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_STATE; lvItem.stateMask = OS.LVIS_SELECTED; lvItem.iItem = (int) nmcd.dwItemSpec; long result = OS.SendMessage(handle, OS.LVM_GETITEM, 0, lvItem); if ((result != 0 && (lvItem.state & OS.LVIS_SELECTED) != 0)) { int clrSelection = -1; if (nmcd.iSubItem == 0) { if (OS.GetFocus() == handle || display.getHighContrast()) { clrSelection = OS.GetSysColor(OS.COLOR_HIGHLIGHT); } else { if ((style & SWT.HIDE_SELECTION) == 0) { clrSelection = OS.GetSysColor(OS.COLOR_3DFACE); } } } else { if (OS.GetFocus() == handle || display.getHighContrast()) { clrText = OS.GetSysColor(OS.COLOR_HIGHLIGHTTEXT); clrTextBk = clrSelection = OS.GetSysColor(OS.COLOR_HIGHLIGHT); } else { if ((style & SWT.HIDE_SELECTION) == 0) { clrTextBk = clrSelection = OS.GetSysColor(OS.COLOR_3DFACE); } } } if (clrSelection != -1) { RECT rect = item.getBounds((int) nmcd.dwItemSpec, nmcd.iSubItem, true, nmcd.iSubItem != 0, true, false, hDC); fillBackground(hDC, clrSelection, rect); } } } } } if (!ignoreDrawForeground) { /* * Bug in Windows. When the attributes are for one cell in a table, * Windows does not reset them for the next cell. As a result, all * subsequent cells are drawn using the previous font, foreground and * background colors. The fix is to set the all attributes when any * attribute could have changed. */ boolean hasAttributes = true; if (hFont == -1 && clrText == -1 && clrTextBk == -1) { if (item.cellForeground == null && item.cellBackground == null && item.cellFont == null) { int count = (int) OS.SendMessage(hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); if (count == 1) hasAttributes = false; } } if (hasAttributes) { if (hFont == -1) hFont = OS.SendMessage(handle, OS.WM_GETFONT, 0, 0); OS.SelectObject(hDC, hFont); if (enabled) { nmcd.clrText = clrText == -1 ? getForegroundPixel() : clrText; if (clrTextBk == -1) { nmcd.clrTextBk = OS.CLR_NONE; if (selectionForeground == -1) { Control control = findBackgroundControl(); if (control == null) control = this; if (control.backgroundImage == null) { if ((int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) != OS.CLR_NONE) { nmcd.clrTextBk = control.getBackgroundPixel(); } } } } else { nmcd.clrTextBk = selectionForeground != -1 ? OS.CLR_NONE : clrTextBk; } OS.MoveMemory(lParam, nmcd, NMLVCUSTOMDRAW.sizeof); } code |= OS.CDRF_NEWFONT; } } /* * Feature in Windows. When there is a sort column, the sort column * color draws on top of the background color for an item. The fix * is to clear the sort column in CDDS_SUBITEMPREPAINT, and reset it * in CDDS_SUBITEMPOSTPAINT. * * Update region is saved and restored around LVM_SETSELECTEDCOLUMN * to prevent infinite WM_PAINT on Vista. */ if ((enabled && clrTextBk != -1) || (!enabled && hasCustomBackground())) { int oldColumn = (int) OS.SendMessage(handle, OS.LVM_GETSELECTEDCOLUMN, 0, 0); if (oldColumn != -1 && oldColumn == nmcd.iSubItem) { long rgn = OS.CreateRectRgn(0, 0, 0, 0); int result = OS.GetUpdateRgn(handle, rgn, true); OS.SendMessage(handle, OS.LVM_SETSELECTEDCOLUMN, -1, 0); OS.ValidateRect(handle, null); if (result != OS.NULLREGION) OS.InvalidateRgn(handle, rgn, true); OS.DeleteObject(rgn); code |= OS.CDRF_NOTIFYPOSTPAINT; } } if (!enabled) { /* * Feature in Windows. When the table is disabled, it draws * with a gray background but does not gray the text. The fix * is to explicitly gray the text, but only, when it wasn't customized. */ nmcd.clrText = OS.GetSysColor(OS.COLOR_GRAYTEXT); if (findImageControl() != null || hasCustomBackground()) { nmcd.clrTextBk = OS.CLR_NONE; } nmcd.uItemState &= ~OS.CDIS_SELECTED; OS.MoveMemory(lParam, nmcd, NMLVCUSTOMDRAW.sizeof); code |= OS.CDRF_NEWFONT; } return new LRESULT(code); } @Override void checkBuffered() { super.checkBuffered(); style |= SWT.DOUBLE_BUFFERED; } boolean checkData(TableItem item, boolean redraw) { if ((style & SWT.VIRTUAL) == 0) return true; return checkData(item, indexOf(item), redraw); } boolean checkData(TableItem item, int index, boolean redraw) { if ((style & SWT.VIRTUAL) == 0) return true; if (!item.cached) { item.cached = true; Event event = new Event(); event.item = item; event.index = index; currentItem = item; sendEvent(SWT.SetData, event); //widget could be disposed at this point currentItem = null; if (isDisposed() || item.isDisposed()) return false; if (redraw) { if (!setScrollWidth(item, false)) { item.redraw(); } } } return true; } @Override boolean checkHandle(long hwnd) { if (hwnd == handle) return true; return hwnd == OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); } @Override protected void checkSubclass() { if (!isValidSubclass()) error(SWT.ERROR_INVALID_SUBCLASS); } /** * Clears the item at the given zero-relative index in the receiver. * The text, icon and other attributes of the item are set to the default * value. If the table was created with the <code>SWT.VIRTUAL</code> style, * these attributes are requested again as needed. * * @param index the index of the item to clear * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see SWT#VIRTUAL * @see SWT#SetData * * @since 3.0 */ public void clear(int index) { checkWidget(); int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (!(0 <= index && index < count)) error(SWT.ERROR_INVALID_RANGE); TableItem item = _getItem(index, false); if (item != null) { if (item != currentItem) item.clear(); /* * Bug in Windows. Despite the fact that every item in the * table always has LPSTR_TEXTCALLBACK, Windows caches the * bounds for the selected items. This means that * when you change the string to be something else, Windows * correctly asks you for the new string but when the item * is selected, the selection draws using the bounds of the * previous item. The fix is to reset LPSTR_TEXTCALLBACK * even though it has not changed, causing Windows to flush * cached bounds. */ if ((style & SWT.VIRTUAL) == 0 && item.cached) { LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_TEXT | OS.LVIF_INDENT; lvItem.pszText = OS.LPSTR_TEXTCALLBACK; lvItem.iItem = index; OS.SendMessage(handle, OS.LVM_SETITEM, 0, lvItem); item.cached = false; } if (currentItem == null && getDrawing() && OS.IsWindowVisible(handle)) { OS.SendMessage(handle, OS.LVM_REDRAWITEMS, index, index); } setScrollWidth(item, false); } } /** * Removes the items from the receiver which are between the given * zero-relative start and end indices (inclusive). The text, icon * and other attributes of the items are set to their default values. * If the table was created with the <code>SWT.VIRTUAL</code> style, * these attributes are requested again as needed. * * @param start the start index of the item to clear * @param end the end index of the item to clear * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see SWT#VIRTUAL * @see SWT#SetData * * @since 3.0 */ public void clear(int start, int end) { checkWidget(); if (start > end) return; int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (!(0 <= start && start <= end && end < count)) { error(SWT.ERROR_INVALID_RANGE); } if (start == 0 && end == count - 1) { clearAll(); } else { LVITEM lvItem = null; boolean cleared = false; for (int i = start; i <= end; i++) { TableItem item = _getItem(i, false); if (item != null) { if (item != currentItem) { cleared = true; item.clear(); } /* * Bug in Windows. Despite the fact that every item in the * table always has LPSTR_TEXTCALLBACK, Windows caches the * bounds for the selected items. This means that * when you change the string to be something else, Windows * correctly asks you for the new string but when the item * is selected, the selection draws using the bounds of the * previous item. The fix is to reset LPSTR_TEXTCALLBACK * even though it has not changed, causing Windows to flush * cached bounds. */ if ((style & SWT.VIRTUAL) == 0 && item.cached) { if (lvItem == null) { lvItem = new LVITEM(); lvItem.mask = OS.LVIF_TEXT | OS.LVIF_INDENT; lvItem.pszText = OS.LPSTR_TEXTCALLBACK; } lvItem.iItem = i; OS.SendMessage(handle, OS.LVM_SETITEM, 0, lvItem); item.cached = false; } } } if (cleared) { if (currentItem == null && getDrawing() && OS.IsWindowVisible(handle)) { OS.SendMessage(handle, OS.LVM_REDRAWITEMS, start, end); } TableItem item = start == end ? _getItem(start, false) : null; setScrollWidth(item, false); } } } /** * Clears the items at the given zero-relative indices in the receiver. * The text, icon and other attributes of the items are set to their default * values. If the table was created with the <code>SWT.VIRTUAL</code> style, * these attributes are requested again as needed. * * @param indices the array of indices of the items * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> * <li>ERROR_NULL_ARGUMENT - if the indices array is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see SWT#VIRTUAL * @see SWT#SetData * * @since 3.0 */ public void clear(int[] indices) { checkWidget(); if (indices == null) error(SWT.ERROR_NULL_ARGUMENT); if (indices.length == 0) return; int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); for (int i = 0; i < indices.length; i++) { if (!(0 <= indices[i] && indices[i] < count)) { error(SWT.ERROR_INVALID_RANGE); } } LVITEM lvItem = null; boolean cleared = false; for (int i = 0; i < indices.length; i++) { int index = indices[i]; TableItem item = _getItem(index, false); if (item != null) { if (item != currentItem) { cleared = true; item.clear(); } /* * Bug in Windows. Despite the fact that every item in the * table always has LPSTR_TEXTCALLBACK, Windows caches the * bounds for the selected items. This means that * when you change the string to be something else, Windows * correctly asks you for the new string but when the item * is selected, the selection draws using the bounds of the * previous item. The fix is to reset LPSTR_TEXTCALLBACK * even though it has not changed, causing Windows to flush * cached bounds. */ if ((style & SWT.VIRTUAL) == 0 && item.cached) { if (lvItem == null) { lvItem = new LVITEM(); lvItem.mask = OS.LVIF_TEXT | OS.LVIF_INDENT; lvItem.pszText = OS.LPSTR_TEXTCALLBACK; } lvItem.iItem = i; OS.SendMessage(handle, OS.LVM_SETITEM, 0, lvItem); item.cached = false; } if (currentItem == null && getDrawing() && OS.IsWindowVisible(handle)) { OS.SendMessage(handle, OS.LVM_REDRAWITEMS, index, index); } } } if (cleared) setScrollWidth(null, false); } /** * Clears all the items in the receiver. The text, icon and other * attributes of the items are set to their default values. If the * table was created with the <code>SWT.VIRTUAL</code> style, these * attributes are requested again as needed. * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see SWT#VIRTUAL * @see SWT#SetData * * @since 3.0 */ public void clearAll() { checkWidget(); LVITEM lvItem = null; boolean cleared = false; int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); for (int i = 0; i < count; i++) { TableItem item = _getItem(i, false); if (item != null) { if (item != currentItem) { cleared = true; item.clear(); } /* * Bug in Windows. Despite the fact that every item in the * table always has LPSTR_TEXTCALLBACK, Windows caches the * bounds for the selected items. This means that * when you change the string to be something else, Windows * correctly asks you for the new string but when the item * is selected, the selection draws using the bounds of the * previous item. The fix is to reset LPSTR_TEXTCALLBACK * even though it has not changed, causing Windows to flush * cached bounds. */ if ((style & SWT.VIRTUAL) == 0 && item.cached) { if (lvItem == null) { lvItem = new LVITEM(); lvItem.mask = OS.LVIF_TEXT | OS.LVIF_INDENT; lvItem.pszText = OS.LPSTR_TEXTCALLBACK; } lvItem.iItem = i; OS.SendMessage(handle, OS.LVM_SETITEM, 0, lvItem); item.cached = false; } } } if (cleared) { if (currentItem == null && getDrawing() && OS.IsWindowVisible(handle)) { OS.SendMessage(handle, OS.LVM_REDRAWITEMS, 0, count - 1); } setScrollWidth(null, false); } } @Override Point computeSizeInPixels(int wHint, int hHint, boolean changed) { if (fixScrollWidth) setScrollWidth(null, true); //This code is intentionally commented // if (itemHeight == -1 && hooks (SWT.MeasureItem)) { // int i = 0; // TableItem item = items [i]; // if (item != null) { // int hDC = OS.GetDC (handle); // int oldFont = 0, newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); // if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); // int index = 0, count = Math.max (1, columnCount); // while (index < count) { // int hFont = item.cellFont != null ? item.cellFont [index] : -1; // if (hFont == -1) hFont = item.font; // if (hFont != -1) hFont = OS.SelectObject (hDC, hFont); // sendMeasureItemEvent (item, i, index, hDC); // if (hFont != -1) hFont = OS.SelectObject (hDC, hFont); // if (isDisposed () || item.isDisposed ()) break; // index++; // } // if (newFont != 0) OS.SelectObject (hDC, oldFont); // OS.ReleaseDC (handle, hDC); // } // } RECT rect = new RECT(); OS.GetWindowRect(hwndHeader, rect); int height = rect.bottom - rect.top; int bits = 0; if (wHint != SWT.DEFAULT) { bits |= wHint & 0xFFFF; } else { int width = 0; int count = (int) OS.SendMessage(hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); for (int i = 0; i < count; i++) { width += OS.SendMessage(handle, OS.LVM_GETCOLUMNWIDTH, i, 0); } bits |= width & 0xFFFF; } long result = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, -1, OS.MAKELPARAM(bits, 0xFFFF)); int width = OS.LOWORD(result); long empty = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); long oneItem = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); int itemHeight = OS.HIWORD(oneItem) - OS.HIWORD(empty); height += (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0) * itemHeight; if (width == 0) width = DEFAULT_WIDTH; if (height == 0) height = DEFAULT_HEIGHT; if (wHint != SWT.DEFAULT) width = wHint; if (hHint != SWT.DEFAULT) height = hHint; int border = getBorderWidthInPixels(); width += border * 2; height += border * 2; if ((style & SWT.V_SCROLL) != 0) { width += OS.GetSystemMetrics(OS.SM_CXVSCROLL); } if ((style & SWT.H_SCROLL) != 0) { height += OS.GetSystemMetrics(OS.SM_CYHSCROLL); } return new Point(width, height); } @Override void createHandle() { super.createHandle(); state &= ~(CANVAS | THEME_BACKGROUND); /* Use the Explorer theme */ if (OS.IsAppThemed()) { explorerTheme = true; OS.SetWindowTheme(handle, Display.EXPLORER, null); } /* Get the header window handle */ hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); /* * This code is intentionally commented. According to * the documentation, setting the default item size is * supposed to improve performance. By experimentation, * this does not seem to have much of an effect. */ // OS.SendMessage (handle, OS.LVM_SETITEMCOUNT, 1024 * 2, 0); /* Set the checkbox image list */ if ((style & SWT.CHECK) != 0) { long empty = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); long oneItem = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); int width = OS.HIWORD(oneItem) - OS.HIWORD(empty), height = width; setCheckboxImageList(width, height, false); OS.SendMessage(handle, OS.LVM_SETCALLBACKMASK, OS.LVIS_STATEIMAGEMASK, 0); } /* * Feature in Windows. When the control is created, * it does not use the default system font. A new HFONT * is created and destroyed when the control is destroyed. * This means that a program that queries the font from * this control, uses the font in another control and then * destroys this control will have the font unexpectedly * destroyed in the other control. The fix is to assign * the font ourselves each time the control is created. * The control will not destroy a font that it did not * create. */ long hFont = OS.GetStockObject(OS.SYSTEM_FONT); OS.SendMessage(handle, OS.WM_SETFONT, hFont, 0); /* * Bug in Windows. When the first column is inserted * without setting the header text, Windows will never * allow the header text for the first column to be set. * The fix is to set the text to an empty string when * the column is inserted. */ LVCOLUMN lvColumn = new LVCOLUMN(); lvColumn.mask = OS.LVCF_TEXT | OS.LVCF_WIDTH; long hHeap = OS.GetProcessHeap(); long pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, TCHAR.sizeof); lvColumn.pszText = pszText; OS.SendMessage(handle, OS.LVM_INSERTCOLUMN, 0, lvColumn); OS.HeapFree(hHeap, 0, pszText); /* Set the extended style bits */ int bits1 = OS.LVS_EX_LABELTIP | OS.LVS_EX_DOUBLEBUFFER; if ((style & SWT.FULL_SELECTION) != 0) bits1 |= OS.LVS_EX_FULLROWSELECT; OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits1, bits1); /* * Feature in Windows. Windows does not explicitly set the orientation of * the header. Instead, the orientation is inherited when WS_EX_LAYOUTRTL * is specified for the table. This means that when both WS_EX_LAYOUTRTL * and WS_EX_NOINHERITLAYOUT are specified for the table, the header will * not be oriented correctly. The fix is to explicitly set the orientation * for the header. */ if ((style & SWT.RIGHT_TO_LEFT) != 0) { int bits2 = OS.GetWindowLong(hwndHeader, OS.GWL_EXSTYLE); OS.SetWindowLong(hwndHeader, OS.GWL_EXSTYLE, bits2 | OS.WS_EX_LAYOUTRTL); long hwndTooltop = OS.SendMessage(handle, OS.LVM_GETTOOLTIPS, 0, 0); int bits3 = OS.GetWindowLong(hwndTooltop, OS.GWL_EXSTYLE); OS.SetWindowLong(hwndTooltop, OS.GWL_EXSTYLE, bits3 | OS.WS_EX_LAYOUTRTL); } } @Override int applyThemeBackground() { /* * Just inheriting the THEME_BACKGROUND doesn't turn complete Table * background transparent, TableItem background remains as-is. */ return -1; /* No Change */ } void createHeaderToolTips() { if (headerToolTipHandle != 0) return; int bits = 0; if ((style & SWT.RIGHT_TO_LEFT) != 0) bits |= OS.WS_EX_LAYOUTRTL; headerToolTipHandle = OS.CreateWindowEx(bits, new TCHAR(0, OS.TOOLTIPS_CLASS, true), null, OS.TTS_NOPREFIX, OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0, handle, 0, OS.GetModuleHandle(null), null); if (headerToolTipHandle == 0) error(SWT.ERROR_NO_HANDLES); /* * Feature in Windows. Despite the fact that the * tool tip text contains \r\n, the tooltip will * not honour the new line unless TTM_SETMAXTIPWIDTH * is set. The fix is to set TTM_SETMAXTIPWIDTH to * a large value. */ OS.SendMessage(headerToolTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); } void createItem(TableColumn column, int index) { if (!(0 <= index && index <= columnCount)) error(SWT.ERROR_INVALID_RANGE); int oldColumn = (int) OS.SendMessage(handle, OS.LVM_GETSELECTEDCOLUMN, 0, 0); if (oldColumn >= index) { OS.SendMessage(handle, OS.LVM_SETSELECTEDCOLUMN, oldColumn + 1, 0); } if (columnCount == columns.length) { TableColumn[] newColumns = new TableColumn[columns.length + 4]; System.arraycopy(columns, 0, newColumns, 0, columns.length); columns = newColumns; } int itemCount = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); for (int i = 0; i < itemCount; i++) { TableItem item = _getItem(i, false); if (item != null) { String[] strings = item.strings; if (strings != null) { String[] temp = new String[columnCount + 1]; System.arraycopy(strings, 0, temp, 0, index); System.arraycopy(strings, index, temp, index + 1, columnCount - index); item.strings = temp; } Image[] images = item.images; if (images != null) { Image[] temp = new Image[columnCount + 1]; System.arraycopy(images, 0, temp, 0, index); System.arraycopy(images, index, temp, index + 1, columnCount - index); item.images = temp; } if (index == 0) { if (columnCount != 0) { if (strings == null) { item.strings = new String[columnCount + 1]; item.strings[1] = item.text; } item.text = ""; //$NON-NLS-1$ if (images == null) { item.images = new Image[columnCount + 1]; item.images[1] = item.image; } item.image = null; } } if (item.cellBackground != null) { int[] cellBackground = item.cellBackground; int[] temp = new int[columnCount + 1]; System.arraycopy(cellBackground, 0, temp, 0, index); System.arraycopy(cellBackground, index, temp, index + 1, columnCount - index); temp[index] = -1; item.cellBackground = temp; } if (item.cellForeground != null) { int[] cellForeground = item.cellForeground; int[] temp = new int[columnCount + 1]; System.arraycopy(cellForeground, 0, temp, 0, index); System.arraycopy(cellForeground, index, temp, index + 1, columnCount - index); temp[index] = -1; item.cellForeground = temp; } if (item.cellFont != null) { Font[] cellFont = item.cellFont; Font[] temp = new Font[columnCount + 1]; System.arraycopy(cellFont, 0, temp, 0, index); System.arraycopy(cellFont, index, temp, index + 1, columnCount - index); item.cellFont = temp; } } } /* * Insert the column into the columns array before inserting * it into the widget so that the column will be present when * any callbacks are issued as a result of LVM_INSERTCOLUMN * or LVM_SETCOLUMN. */ System.arraycopy(columns, index, columns, index + 1, columnCount++ - index); columns[index] = column; /* * Ensure that resize listeners for the table and for columns * within the table are not called. This can happen when the * first column is inserted into a table or when a new column * is inserted in the first position. */ ignoreColumnResize = true; if (index == 0) { if (columnCount > 1) { LVCOLUMN lvColumn = new LVCOLUMN(); lvColumn.mask = OS.LVCF_WIDTH; OS.SendMessage(handle, OS.LVM_INSERTCOLUMN, 1, lvColumn); OS.SendMessage(handle, OS.LVM_GETCOLUMN, 1, lvColumn); int width = lvColumn.cx; int cchTextMax = 1024; long hHeap = OS.GetProcessHeap(); int byteCount = cchTextMax * TCHAR.sizeof; long pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount); lvColumn.mask = OS.LVCF_TEXT | OS.LVCF_IMAGE | OS.LVCF_WIDTH | OS.LVCF_FMT; lvColumn.pszText = pszText; lvColumn.cchTextMax = cchTextMax; OS.SendMessage(handle, OS.LVM_GETCOLUMN, 0, lvColumn); OS.SendMessage(handle, OS.LVM_SETCOLUMN, 1, lvColumn); lvColumn.fmt = OS.LVCFMT_IMAGE; lvColumn.cx = width; lvColumn.iImage = OS.I_IMAGENONE; lvColumn.pszText = lvColumn.cchTextMax = 0; OS.SendMessage(handle, OS.LVM_SETCOLUMN, 0, lvColumn); lvColumn.mask = OS.LVCF_FMT; lvColumn.fmt = OS.LVCFMT_LEFT; OS.SendMessage(handle, OS.LVM_SETCOLUMN, 0, lvColumn); if (pszText != 0) OS.HeapFree(hHeap, 0, pszText); } else { OS.SendMessage(handle, OS.LVM_SETCOLUMNWIDTH, 0, 0); } /* * Bug in Windows. Despite the fact that every item in the * table always has LPSTR_TEXTCALLBACK, Windows caches the * bounds for the selected items. This means that * when you change the string to be something else, Windows * correctly asks you for the new string but when the item * is selected, the selection draws using the bounds of the * previous item. The fix is to reset LPSTR_TEXTCALLBACK * even though it has not changed, causing Windows to flush * cached bounds. */ if ((style & SWT.VIRTUAL) == 0) { LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_TEXT | OS.LVIF_IMAGE; lvItem.pszText = OS.LPSTR_TEXTCALLBACK; lvItem.iImage = OS.I_IMAGECALLBACK; for (int i = 0; i < itemCount; i++) { lvItem.iItem = i; OS.SendMessage(handle, OS.LVM_SETITEM, 0, lvItem); } } } else { int fmt = OS.LVCFMT_LEFT; if ((column.style & SWT.CENTER) == SWT.CENTER) fmt = OS.LVCFMT_CENTER; if ((column.style & SWT.RIGHT) == SWT.RIGHT) fmt = OS.LVCFMT_RIGHT; LVCOLUMN lvColumn = new LVCOLUMN(); lvColumn.mask = OS.LVCF_WIDTH | OS.LVCF_FMT; lvColumn.fmt = fmt; OS.SendMessage(handle, OS.LVM_INSERTCOLUMN, index, lvColumn); } ignoreColumnResize = false; /* Add the tool tip item for the header */ if (headerToolTipHandle != 0) { RECT rect = new RECT(); if (OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, index, rect) != 0) { TOOLINFO lpti = new TOOLINFO(); lpti.cbSize = TOOLINFO.sizeof; lpti.uFlags = OS.TTF_SUBCLASS; lpti.hwnd = hwndHeader; lpti.uId = column.id = display.nextToolTipId++; lpti.left = rect.left; lpti.top = rect.top; lpti.right = rect.right; lpti.bottom = rect.bottom; lpti.lpszText = OS.LPSTR_TEXTCALLBACK; OS.SendMessage(headerToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); } } } void createItem(TableItem item, int index) { int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (!(0 <= index && index <= count)) error(SWT.ERROR_INVALID_RANGE); _checkGrow(count); LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_TEXT | OS.LVIF_IMAGE; lvItem.iItem = index; lvItem.pszText = OS.LPSTR_TEXTCALLBACK; /* * Bug in Windows. Despite the fact that the image list * index has never been set for the item, Windows always * assumes that the image index for the item is valid. * When an item is inserted, the image index is zero. * Therefore, when the first image is inserted and is * assigned image index zero, every item draws with this * image. The fix is to set the image index when the * the item is created. */ lvItem.iImage = OS.I_IMAGECALLBACK; /* Insert the item */ setDeferResize(true); ignoreSelect = ignoreShrink = true; int result = (int) OS.SendMessage(handle, OS.LVM_INSERTITEM, 0, lvItem); ignoreSelect = ignoreShrink = false; if (result == -1) error(SWT.ERROR_ITEM_NOT_ADDED); _insertItem(index, item, count); setDeferResize(false); /* Resize to show the first item */ if (count == 0) setScrollWidth(item, false); } @Override void createWidget() { super.createWidget(); itemHeight = hotIndex = -1; _initItems(); columns = new TableColumn[4]; } private boolean customHeaderDrawing() { return headerBackground != -1 || headerForeground != -1; } @Override int defaultBackground() { return OS.GetSysColor(OS.COLOR_WINDOW); } @Override void deregister() { super.deregister(); if (hwndHeader != 0) display.removeControl(hwndHeader); } /** * Deselects the items at the given zero-relative indices in the receiver. * If the item at the given zero-relative index in the receiver * is selected, it is deselected. If the item at the index * was not selected, it remains deselected. Indices that are out * of range and duplicate indices are ignored. * * @param indices the array of indices for the items to deselect * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the set of indices is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void deselect(int[] indices) { checkWidget(); if (indices == null) error(SWT.ERROR_NULL_ARGUMENT); if (indices.length == 0) return; LVITEM lvItem = new LVITEM(); lvItem.stateMask = OS.LVIS_SELECTED; for (int i = 0; i < indices.length; i++) { /* * An index of -1 will apply the change to all * items. Ensure that indices are greater than -1. */ if (indices[i] >= 0) { ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, indices[i], lvItem); ignoreSelect = false; } } } /** * Deselects the item at the given zero-relative index in the receiver. * If the item at the index was already deselected, it remains * deselected. Indices that are out of range are ignored. * * @param index the index of the item to deselect * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void deselect(int index) { checkWidget(); /* * An index of -1 will apply the change to all * items. Ensure that index is greater than -1. */ if (index < 0) return; LVITEM lvItem = new LVITEM(); lvItem.stateMask = OS.LVIS_SELECTED; ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, index, lvItem); ignoreSelect = false; } /** * Deselects the items at the given zero-relative indices in the receiver. * If the item at the given zero-relative index in the receiver * is selected, it is deselected. If the item at the index * was not selected, it remains deselected. The range of the * indices is inclusive. Indices that are out of range are ignored. * * @param start the start index of the items to deselect * @param end the end index of the items to deselect * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void deselect(int start, int end) { checkWidget(); int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (start == 0 && end == count - 1) { deselectAll(); } else { LVITEM lvItem = new LVITEM(); lvItem.stateMask = OS.LVIS_SELECTED; /* * An index of -1 will apply the change to all * items. Ensure that indices are greater than -1. */ start = Math.max(0, start); for (int i = start; i <= end; i++) { ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, i, lvItem); ignoreSelect = false; } } } /** * Deselects all selected items in the receiver. * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void deselectAll() { checkWidget(); LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_STATE; lvItem.stateMask = OS.LVIS_SELECTED; ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, -1, lvItem); ignoreSelect = false; } void destroyItem(TableColumn column) { int index = 0; while (index < columnCount) { if (columns[index] == column) break; index++; } int oldColumn = (int) OS.SendMessage(handle, OS.LVM_GETSELECTEDCOLUMN, 0, 0); if (oldColumn == index) { OS.SendMessage(handle, OS.LVM_SETSELECTEDCOLUMN, -1, 0); } else { if (oldColumn > index) { OS.SendMessage(handle, OS.LVM_SETSELECTEDCOLUMN, oldColumn - 1, 0); } } int orderIndex = 0; int[] oldOrder = new int[columnCount]; OS.SendMessage(handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, oldOrder); while (orderIndex < columnCount) { if (oldOrder[orderIndex] == index) break; orderIndex++; } ignoreColumnResize = true; boolean first = false; if (index == 0) { first = true; /* * Changing the content of a column using LVM_SETCOLUMN causes * the table control to send paint events. At this point the * partially disposed column is still part of the table and * paint handler can try to access it. This can cause exceptions. * The fix is to turn redraw off. */ setRedraw(false); if (columnCount > 1) { index = 1; int cchTextMax = 1024; long hHeap = OS.GetProcessHeap(); int byteCount = cchTextMax * TCHAR.sizeof; long pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount); LVCOLUMN lvColumn = new LVCOLUMN(); lvColumn.mask = OS.LVCF_TEXT | OS.LVCF_IMAGE | OS.LVCF_WIDTH | OS.LVCF_FMT; lvColumn.pszText = pszText; lvColumn.cchTextMax = cchTextMax; OS.SendMessage(handle, OS.LVM_GETCOLUMN, 1, lvColumn); lvColumn.fmt &= ~(OS.LVCFMT_CENTER | OS.LVCFMT_RIGHT); lvColumn.fmt |= OS.LVCFMT_LEFT; OS.SendMessage(handle, OS.LVM_SETCOLUMN, 0, lvColumn); if (pszText != 0) OS.HeapFree(hHeap, 0, pszText); } else { long hHeap = OS.GetProcessHeap(); long pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, TCHAR.sizeof); LVCOLUMN lvColumn = new LVCOLUMN(); lvColumn.mask = OS.LVCF_TEXT | OS.LVCF_IMAGE | OS.LVCF_WIDTH | OS.LVCF_FMT; lvColumn.pszText = pszText; lvColumn.iImage = OS.I_IMAGENONE; lvColumn.fmt = OS.LVCFMT_LEFT; OS.SendMessage(handle, OS.LVM_SETCOLUMN, 0, lvColumn); if (pszText != 0) OS.HeapFree(hHeap, 0, pszText); HDITEM hdItem = new HDITEM(); hdItem.mask = OS.HDI_FORMAT; hdItem.fmt = OS.HDF_LEFT; long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); OS.SendMessage(hwndHeader, OS.HDM_SETITEM, index, hdItem); } setRedraw(true); /* * Bug in Windows. Despite the fact that every item in the * table always has LPSTR_TEXTCALLBACK, Windows caches the * bounds for the selected items. This means that * when you change the string to be something else, Windows * correctly asks you for the new string but when the item * is selected, the selection draws using the bounds of the * previous item. The fix is to reset LPSTR_TEXTCALLBACK * even though it has not changed, causing Windows to flush * cached bounds. */ if ((style & SWT.VIRTUAL) == 0) { LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_TEXT | OS.LVIF_IMAGE; lvItem.pszText = OS.LPSTR_TEXTCALLBACK; lvItem.iImage = OS.I_IMAGECALLBACK; int itemCount = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); for (int i = 0; i < itemCount; i++) { lvItem.iItem = i; OS.SendMessage(handle, OS.LVM_SETITEM, 0, lvItem); } } } if (columnCount > 1) { if (OS.SendMessage(handle, OS.LVM_DELETECOLUMN, index, 0) == 0) { error(SWT.ERROR_ITEM_NOT_REMOVED); } } if (first) index = 0; System.arraycopy(columns, index + 1, columns, index, --columnCount - index); columns[columnCount] = null; int itemCount = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); for (int i = 0; i < itemCount; i++) { TableItem item = _getItem(i, false); if (item != null) { if (columnCount == 0) { item.strings = null; item.images = null; item.cellBackground = null; item.cellForeground = null; item.cellFont = null; } else { if (item.strings != null) { String[] strings = item.strings; if (index == 0) { item.text = strings[1] != null ? strings[1] : ""; //$NON-NLS-1$ } String[] temp = new String[columnCount]; System.arraycopy(strings, 0, temp, 0, index); System.arraycopy(strings, index + 1, temp, index, columnCount - index); item.strings = temp; } else { if (index == 0) item.text = ""; //$NON-NLS-1$ } if (item.images != null) { Image[] images = item.images; if (index == 0) item.image = images[1]; Image[] temp = new Image[columnCount]; System.arraycopy(images, 0, temp, 0, index); System.arraycopy(images, index + 1, temp, index, columnCount - index); item.images = temp; } else { if (index == 0) item.image = null; } if (item.cellBackground != null) { int[] cellBackground = item.cellBackground; int[] temp = new int[columnCount]; System.arraycopy(cellBackground, 0, temp, 0, index); System.arraycopy(cellBackground, index + 1, temp, index, columnCount - index); item.cellBackground = temp; } if (item.cellForeground != null) { int[] cellForeground = item.cellForeground; int[] temp = new int[columnCount]; System.arraycopy(cellForeground, 0, temp, 0, index); System.arraycopy(cellForeground, index + 1, temp, index, columnCount - index); item.cellForeground = temp; } if (item.cellFont != null) { Font[] cellFont = item.cellFont; Font[] temp = new Font[columnCount]; System.arraycopy(cellFont, 0, temp, 0, index); System.arraycopy(cellFont, index + 1, temp, index, columnCount - index); item.cellFont = temp; } } } } if (columnCount == 0) setScrollWidth(null, true); updateMoveable(); ignoreColumnResize = false; if (columnCount != 0) { /* * Bug in Windows. When LVM_DELETECOLUMN is used to delete a * column zero when that column is both the first column in the * table and the first column in the column order array, Windows * incorrectly computes the new column order. For example, both * the orders {0, 3, 1, 2} and {0, 3, 2, 1} give a new column * order of {0, 2, 1}, while {0, 2, 1, 3} gives {0, 1, 2, 3}. * The fix is to compute the new order and compare it with the * order that Windows is using. If the two differ, the new order * is used. */ int count = 0; int oldIndex = oldOrder[orderIndex]; int[] newOrder = new int[columnCount]; for (int i = 0; i < oldOrder.length; i++) { if (oldOrder[i] != oldIndex) { int newIndex = oldOrder[i] <= oldIndex ? oldOrder[i] : oldOrder[i] - 1; newOrder[count++] = newIndex; } } OS.SendMessage(handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, oldOrder); int j = 0; while (j < newOrder.length) { if (oldOrder[j] != newOrder[j]) break; j++; } if (j != newOrder.length) { OS.SendMessage(handle, OS.LVM_SETCOLUMNORDERARRAY, newOrder.length, newOrder); /* * Bug in Windows. When LVM_SETCOLUMNORDERARRAY is used to change * the column order, the header redraws correctly but the table does * not. The fix is to force a redraw. */ OS.InvalidateRect(handle, null, true); } TableColumn[] newColumns = new TableColumn[columnCount - orderIndex]; for (int i = orderIndex; i < newOrder.length; i++) { newColumns[i - orderIndex] = columns[newOrder[i]]; newColumns[i - orderIndex].updateToolTip(newOrder[i]); } for (int i = 0; i < newColumns.length; i++) { if (!newColumns[i].isDisposed()) { newColumns[i].sendEvent(SWT.Move); } } } /* Remove the tool tip item for the header */ if (headerToolTipHandle != 0) { TOOLINFO lpti = new TOOLINFO(); lpti.cbSize = TOOLINFO.sizeof; lpti.uId = column.id; lpti.hwnd = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); OS.SendMessage(headerToolTipHandle, OS.TTM_DELTOOL, 0, lpti); } } void destroyItem(TableItem item) { int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); int index = 0; while (index < count) { if (_getItem(index, false) == item) break; index++; } if (index == count) return; setDeferResize(true); ignoreSelect = ignoreShrink = true; long code = OS.SendMessage(handle, OS.LVM_DELETEITEM, index, 0); ignoreSelect = ignoreShrink = false; if (code == 0) error(SWT.ERROR_ITEM_NOT_REMOVED); _removeItem(index, count); --count; if (count == 0) setTableEmpty(); setDeferResize(false); } void fixCheckboxImageList(boolean fixScroll) { /* * Bug in Windows. When the state image list is larger than the * image list, Windows incorrectly positions the state images. When * the table is scrolled, Windows draws garbage. The fix is to force * the state image list to be the same size as the image list. */ if ((style & SWT.CHECK) == 0) return; long hImageList = OS.SendMessage(handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0); if (hImageList == 0) return; int[] cx = new int[1], cy = new int[1]; OS.ImageList_GetIconSize(hImageList, cx, cy); long hStateList = OS.SendMessage(handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); if (hStateList == 0) return; int[] stateCx = new int[1], stateCy = new int[1]; OS.ImageList_GetIconSize(hStateList, stateCx, stateCy); if (cx[0] == stateCx[0] && cy[0] == stateCy[0]) return; setCheckboxImageList(cx[0], cy[0], fixScroll); } void fixCheckboxImageListColor(boolean fixScroll) { if ((style & SWT.CHECK) == 0) return; long hStateList = OS.SendMessage(handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); if (hStateList == 0) return; int[] cx = new int[1], cy = new int[1]; OS.ImageList_GetIconSize(hStateList, cx, cy); setCheckboxImageList(cx[0], cy[0], fixScroll); } /** * Returns the column at the given, zero-relative index in the * receiver. Throws an exception if the index is out of range. * Columns are returned in the order that they were created. * If no <code>TableColumn</code>s were created by the programmer, * this method will throw <code>ERROR_INVALID_RANGE</code> despite * the fact that a single column of data may be visible in the table. * This occurs when the programmer uses the table like a list, adding * items but never creating a column. * * @param index the index of the column to return * @return the column at the given index * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#getColumnOrder() * @see Table#setColumnOrder(int[]) * @see TableColumn#getMoveable() * @see TableColumn#setMoveable(boolean) * @see SWT#Move */ public TableColumn getColumn(int index) { checkWidget(); if (!(0 <= index && index < columnCount)) error(SWT.ERROR_INVALID_RANGE); return columns[index]; } /** * Returns the number of columns contained in the receiver. * If no <code>TableColumn</code>s were created by the programmer, * this value is zero, despite the fact that visually, one column * of items may be visible. This occurs when the programmer uses * the table like a list, adding items but never creating a column. * * @return the number of columns * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int getColumnCount() { checkWidget(); return columnCount; } /** * Returns an array of zero-relative integers that map * the creation order of the receiver's items to the * order in which they are currently being displayed. * <p> * Specifically, the indices of the returned array represent * the current visual order of the items, and the contents * of the array represent the creation order of the items. * </p><p> * Note: This is not the actual structure used by the receiver * to maintain its list of items, so modifying the array will * not affect the receiver. * </p> * * @return the current visual order of the receiver's items * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#setColumnOrder(int[]) * @see TableColumn#getMoveable() * @see TableColumn#setMoveable(boolean) * @see SWT#Move * * @since 3.1 */ public int[] getColumnOrder() { checkWidget(); if (columnCount == 0) return new int[0]; int[] order = new int[columnCount]; OS.SendMessage(handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, order); return order; } /** * Returns an array of <code>TableColumn</code>s which are the * columns in the receiver. Columns are returned in the order * that they were created. If no <code>TableColumn</code>s were * created by the programmer, the array is empty, despite the fact * that visually, one column of items may be visible. This occurs * when the programmer uses the table like a list, adding items but * never creating a column. * <p> * Note: This is not the actual structure used by the receiver * to maintain its list of items, so modifying the array will * not affect the receiver. * </p> * * @return the items in the receiver * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#getColumnOrder() * @see Table#setColumnOrder(int[]) * @see TableColumn#getMoveable() * @see TableColumn#setMoveable(boolean) * @see SWT#Move */ public TableColumn[] getColumns() { checkWidget(); TableColumn[] result = new TableColumn[columnCount]; System.arraycopy(columns, 0, result, 0, columnCount); return result; } int getFocusIndex() { // checkWidget (); return (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); } /** * Returns the width in points of a grid line. * * @return the width of a grid line in points * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int getGridLineWidth() { checkWidget(); return DPIUtil.autoScaleDown(getGridLineWidthInPixels()); } int getGridLineWidthInPixels() { return GRID_WIDTH; } /** * Returns the header background color. * * @return the receiver's header background color. * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * @since 3.106 */ public Color getHeaderBackground() { checkWidget(); return Color.win32_new(display, getHeaderBackgroundPixel()); } private int getHeaderBackgroundPixel() { return headerBackground != -1 ? headerBackground : defaultBackground(); } /** * Returns the header foreground color. * * @return the receiver's header foreground color. * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * @since 3.106 */ public Color getHeaderForeground() { checkWidget(); return Color.win32_new(display, getHeaderForegroundPixel()); } private int getHeaderForegroundPixel() { return headerForeground != -1 ? headerForeground : defaultForeground(); } /** * Returns the height of the receiver's header * * @return the height of the header or zero if the header is not visible * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @since 2.0 */ public int getHeaderHeight() { checkWidget(); return DPIUtil.autoScaleDown(getHeaderHeightInPixels()); } int getHeaderHeightInPixels() { if (hwndHeader == 0) return 0; RECT rect = new RECT(); OS.GetWindowRect(hwndHeader, rect); return rect.bottom - rect.top; } /** * Returns <code>true</code> if the receiver's header is visible, * and <code>false</code> otherwise. * <p> * If one of the receiver's ancestors is not visible or some * other condition makes the receiver not visible, this method * may still indicate that it is considered visible even though * it may not actually be showing. * </p> * * @return the receiver's header's visibility state * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public boolean getHeaderVisible() { checkWidget(); int bits = OS.GetWindowLong(handle, OS.GWL_STYLE); return (bits & OS.LVS_NOCOLUMNHEADER) == 0; } /** * Returns the item at the given, zero-relative index in the * receiver. Throws an exception if the index is out of range. * * @param index the index of the item to return * @return the item at the given index * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public TableItem getItem(int index) { checkWidget(); int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (!(0 <= index && index < count)) error(SWT.ERROR_INVALID_RANGE); return _getItem(index); } /** * Returns the item at the given point in the receiver * or null if no such item exists. The point is in the * coordinate system of the receiver. * <p> * The item that is returned represents an item that could be selected by the user. * For example, if selection only occurs in items in the first column, then null is * returned if the point is outside of the item. * Note that the SWT.FULL_SELECTION style hint, which specifies the selection policy, * determines the extent of the selection. * </p> * * @param point the point used to locate the item * @return the item at the given point, or null if the point is not in a selectable item * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the point is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public TableItem getItem(Point point) { checkWidget(); if (point == null) error(SWT.ERROR_NULL_ARGUMENT); return getItemInPixels(DPIUtil.autoScaleUp(point)); } TableItem getItemInPixels(Point point) { int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (count == 0) return null; LVHITTESTINFO pinfo = new LVHITTESTINFO(); pinfo.x = point.x; pinfo.y = point.y; if ((style & SWT.FULL_SELECTION) == 0) { if (hooks(SWT.MeasureItem)) { /* * Bug in Windows. When LVM_SUBITEMHITTEST is used to hittest * a point that is above the table, instead of returning -1 to * indicate that the hittest failed, a negative index is returned. * The fix is to consider any value that is negative a failure. */ if (OS.SendMessage(handle, OS.LVM_SUBITEMHITTEST, 0, pinfo) < 0) { RECT rect = new RECT(); rect.left = OS.LVIR_ICON; ignoreCustomDraw = true; long code = OS.SendMessage(handle, OS.LVM_GETITEMRECT, 0, rect); ignoreCustomDraw = false; if (code != 0) { pinfo.x = rect.left; /* * Bug in Windows. When LVM_SUBITEMHITTEST is used to hittest * a point that is above the table, instead of returning -1 to * indicate that the hittest failed, a negative index is returned. * The fix is to consider any value that is negative a failure. */ OS.SendMessage(handle, OS.LVM_SUBITEMHITTEST, 0, pinfo); if (pinfo.iItem < 0) pinfo.iItem = -1; } } if (pinfo.iItem != -1 && pinfo.iSubItem == 0) { if (hitTestSelection(pinfo.iItem, pinfo.x, pinfo.y)) { return _getItem(pinfo.iItem); } } return null; } } OS.SendMessage(handle, OS.LVM_HITTEST, 0, pinfo); if (pinfo.iItem != -1) { /* * Bug in Windows. When the point that is used by * LVM_HITTEST is inside the header, Windows returns * the first item in the table. The fix is to check * when LVM_HITTEST returns the first item and make * sure that when the point is within the header, * the first item is not returned. */ if (pinfo.iItem == 0) { int bits = OS.GetWindowLong(handle, OS.GWL_STYLE); if ((bits & OS.LVS_NOCOLUMNHEADER) == 0) { if (hwndHeader != 0) { RECT rect = new RECT(); OS.GetWindowRect(hwndHeader, rect); POINT pt = new POINT(); pt.x = pinfo.x; pt.y = pinfo.y; OS.MapWindowPoints(handle, 0, pt, 1); if (OS.PtInRect(rect, pt)) return null; } } } return _getItem(pinfo.iItem); } return null; } /** * Returns the number of items contained in the receiver. * * @return the number of items * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int getItemCount() { checkWidget(); return (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); } /** * Returns the height of the area which would be used to * display <em>one</em> of the items in the receiver. * * @return the height of one item * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int getItemHeight() { checkWidget(); return DPIUtil.autoScaleDown(getItemHeightInPixels()); } int getItemHeightInPixels() { if (!painted && hooks(SWT.MeasureItem)) hitTestSelection(0, 0, 0); long empty = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); long oneItem = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); return OS.HIWORD(oneItem) - OS.HIWORD(empty); } /** * Returns a (possibly empty) array of <code>TableItem</code>s which * are the items in the receiver. * <p> * Note: This is not the actual structure used by the receiver * to maintain its list of items, so modifying the array will * not affect the receiver. * </p> * * @return the items in the receiver * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public TableItem[] getItems() { checkWidget(); int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); TableItem[] result = new TableItem[count]; if ((style & SWT.VIRTUAL) != 0) { for (int i = 0; i < count; i++) { result[i] = _getItem(i); } } else { _getItems(result, count); } return result; } /** * Returns <code>true</code> if the receiver's lines are visible, * and <code>false</code> otherwise. Note that some platforms draw * grid lines while others may draw alternating row colors. * <p> * If one of the receiver's ancestors is not visible or some * other condition makes the receiver not visible, this method * may still indicate that it is considered visible even though * it may not actually be showing. * </p> * * @return the visibility state of the lines * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public boolean getLinesVisible() { checkWidget(); return _getLinesVisible(); } private boolean _getLinesVisible() { int bits = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); return (bits & OS.LVS_EX_GRIDLINES) != 0; } /** * Returns an array of <code>TableItem</code>s that are currently * selected in the receiver. The order of the items is unspecified. * An empty array indicates that no items are selected. * <p> * Note: This is not the actual structure used by the receiver * to maintain its selection, so modifying the array will * not affect the receiver. * </p> * @return an array representing the selection * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public TableItem[] getSelection() { checkWidget(); int i = -1, j = 0, count = (int) OS.SendMessage(handle, OS.LVM_GETSELECTEDCOUNT, 0, 0); TableItem[] result = new TableItem[count]; while ((i = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, i, OS.LVNI_SELECTED)) != -1) { result[j++] = _getItem(i); } return result; } /** * Returns the number of selected items contained in the receiver. * * @return the number of selected items * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int getSelectionCount() { checkWidget(); return (int) OS.SendMessage(handle, OS.LVM_GETSELECTEDCOUNT, 0, 0); } /** * Returns the zero-relative index of the item which is currently * selected in the receiver, or -1 if no item is selected. * * @return the index of the selected item * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int getSelectionIndex() { checkWidget(); int focusIndex = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); int selectedIndex = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_SELECTED); if (focusIndex == selectedIndex) return selectedIndex; int i = -1; while ((i = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, i, OS.LVNI_SELECTED)) != -1) { if (i == focusIndex) return i; } return selectedIndex; } /** * Returns the zero-relative indices of the items which are currently * selected in the receiver. The order of the indices is unspecified. * The array is empty if no items are selected. * <p> * Note: This is not the actual structure used by the receiver * to maintain its selection, so modifying the array will * not affect the receiver. * </p> * @return the array of indices of the selected items * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int[] getSelectionIndices() { checkWidget(); int i = -1, j = 0, count = (int) OS.SendMessage(handle, OS.LVM_GETSELECTEDCOUNT, 0, 0); int[] result = new int[count]; while ((i = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, i, OS.LVNI_SELECTED)) != -1) { result[j++] = i; } return result; } /** * Returns the column which shows the sort indicator for * the receiver. The value may be null if no column shows * the sort indicator. * * @return the sort indicator * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see #setSortColumn(TableColumn) * * @since 3.2 */ public TableColumn getSortColumn() { checkWidget(); return sortColumn; } int getSortColumnPixel() { int pixel = OS.IsWindowEnabled(handle) || hasCustomBackground() ? getBackgroundPixel() : OS.GetSysColor(OS.COLOR_3DFACE); return getSlightlyDifferentBackgroundColor(pixel); } /** * Returns the direction of the sort indicator for the receiver. * The value will be one of <code>UP</code>, <code>DOWN</code> * or <code>NONE</code>. * * @return the sort direction * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see #setSortDirection(int) * * @since 3.2 */ public int getSortDirection() { checkWidget(); return sortDirection; } /** * Returns the zero-relative index of the item which is currently * at the top of the receiver. This index can change when items are * scrolled or new items are added or removed. * * @return the index of the top item * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int getTopIndex() { checkWidget(); /* * Bug in Windows. Under rare circumstances, LVM_GETTOPINDEX * can return a negative number. When this happens, the table * is displaying blank lines at the top of the controls. The * fix is to check for a negative number and return zero instead. */ return Math.max(0, (int) OS.SendMessage(handle, OS.LVM_GETTOPINDEX, 0, 0)); } boolean hasChildren() { long hwndChild = OS.GetWindow(handle, OS.GW_CHILD); while (hwndChild != 0) { if (hwndChild != hwndHeader) return true; hwndChild = OS.GetWindow(hwndChild, OS.GW_HWNDNEXT); } return false; } boolean hitTestSelection(int index, int x, int y) { int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (count == 0) return false; if (!hooks(SWT.MeasureItem)) return false; boolean result = false; if (0 <= index && index < count) { TableItem item = _getItem(index); long hDC = OS.GetDC(handle); long oldFont = 0, newFont = OS.SendMessage(handle, OS.WM_GETFONT, 0, 0); if (newFont != 0) oldFont = OS.SelectObject(hDC, newFont); long hFont = item.fontHandle(0); if (hFont != -1) hFont = OS.SelectObject(hDC, hFont); Event event = sendMeasureItemEvent(item, index, 0, hDC); if (event.getBoundsInPixels().contains(x, y)) result = true; if (hFont != -1) hFont = OS.SelectObject(hDC, hFont); if (newFont != 0) OS.SelectObject(hDC, oldFont); OS.ReleaseDC(handle, hDC); // if (isDisposed () || item.isDisposed ()) return false; } return result; } int imageIndex(Image image, int column) { if (image == null) return OS.I_IMAGENONE; if (column == 0) { firstColumnImage = true; } else { setSubImagesVisible(true); } if (imageList == null) { Rectangle bounds = image.getBoundsInPixels(); imageList = display.getImageList(style & SWT.RIGHT_TO_LEFT, bounds.width, bounds.height); int index = imageList.indexOf(image); if (index == -1) index = imageList.add(image); long hImageList = imageList.getHandle(); /* * Bug in Windows. Making any change to an item that * changes the item height of a table while the table * is scrolled can cause the lines to draw incorrectly. * This happens even when the lines are not currently * visible and are shown afterwards. The fix is to * save the top index, scroll to the top of the table * and then restore the original top index. */ int topIndex = getTopIndex(); if (topIndex != 0) { setRedraw(false); setTopIndex(0); } OS.SendMessage(handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, hImageList); if (headerImageList != null) { long hHeaderImageList = headerImageList.getHandle(); OS.SendMessage(hwndHeader, OS.HDM_SETIMAGELIST, 0, hHeaderImageList); } fixCheckboxImageList(false); setItemHeight(false); if (topIndex != 0) { setTopIndex(topIndex); setRedraw(true); } return index; } int index = imageList.indexOf(image); if (index != -1) return index; return imageList.add(image); } int imageIndexHeader(Image image) { if (image == null) return OS.I_IMAGENONE; if (headerImageList == null) { Rectangle bounds = image.getBoundsInPixels(); headerImageList = display.getImageList(style & SWT.RIGHT_TO_LEFT, bounds.width, bounds.height); int index = headerImageList.indexOf(image); if (index == -1) index = headerImageList.add(image); long hImageList = headerImageList.getHandle(); OS.SendMessage(hwndHeader, OS.HDM_SETIMAGELIST, 0, hImageList); return index; } int index = headerImageList.indexOf(image); if (index != -1) return index; return headerImageList.add(image); } /** * Searches the receiver's list starting at the first column * (index 0) until a column is found that is equal to the * argument, and returns the index of that column. If no column * is found, returns -1. * * @param column the search column * @return the index of the column * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the column is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int indexOf(TableColumn column) { checkWidget(); if (column == null) error(SWT.ERROR_NULL_ARGUMENT); for (int i = 0; i < columnCount; i++) { if (columns[i] == column) return i; } return -1; } /** * Searches the receiver's list starting at the first item * (index 0) until an item is found that is equal to the * argument, and returns the index of that item. If no item * is found, returns -1. * * @param item the search item * @return the index of the item * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the item is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public int indexOf(TableItem item) { checkWidget(); if (item == null) error(SWT.ERROR_NULL_ARGUMENT); //TODO - find other loops that can be optimized if (keys == null) { int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (1 <= lastIndexOf && lastIndexOf < count - 1) { if (_getItem(lastIndexOf, false) == item) return lastIndexOf; if (_getItem(lastIndexOf + 1, false) == item) return ++lastIndexOf; if (_getItem(lastIndexOf - 1, false) == item) return --lastIndexOf; } if (lastIndexOf < count / 2) { for (int i = 0; i < count; i++) { if (_getItem(i, false) == item) return lastIndexOf = i; } } else { for (int i = count - 1; i >= 0; --i) { if (_getItem(i, false) == item) return lastIndexOf = i; } } } else { for (int i = 0; i < keyCount; i++) { if (items[i] == item) return keys[i]; } } return -1; } boolean isCustomToolTip() { return hooks(SWT.MeasureItem); } boolean isOptimizedRedraw() { if ((style & SWT.H_SCROLL) == 0 || (style & SWT.V_SCROLL) == 0) return false; return !hasChildren() && !hooks(SWT.Paint) && !filters(SWT.Paint) && !customHeaderDrawing(); } /** * Returns <code>true</code> if the item is selected, * and <code>false</code> otherwise. Indices out of * range are ignored. * * @param index the index of the item * @return the selection state of the item at the index * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public boolean isSelected(int index) { checkWidget(); LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_STATE; lvItem.stateMask = OS.LVIS_SELECTED; lvItem.iItem = index; long result = OS.SendMessage(handle, OS.LVM_GETITEM, 0, lvItem); return (result != 0) && ((lvItem.state & OS.LVIS_SELECTED) != 0); } @Override void register() { super.register(); if (hwndHeader != 0) display.addControl(hwndHeader, this); } @Override void releaseChildren(boolean destroy) { if (_hasItems()) { int itemCount = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (keys == null) { for (int i = 0; i < itemCount; i++) { TableItem item = _getItem(i, false); if (item != null && !item.isDisposed()) item.release(false); } } else { for (int i = 0; i < keyCount; i++) { TableItem item = items[i]; if (item != null && !item.isDisposed()) item.release(false); } } _clearItems(); } if (columns != null) { for (int i = 0; i < columnCount; i++) { TableColumn column = columns[i]; if (!column.isDisposed()) column.release(false); } columns = null; } super.releaseChildren(destroy); } @Override void releaseWidget() { super.releaseWidget(); customDraw = false; currentItem = null; if (imageList != null) { OS.SendMessage(handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, 0); display.releaseImageList(imageList); } if (headerImageList != null) { OS.SendMessage(hwndHeader, OS.HDM_SETIMAGELIST, 0, 0); display.releaseImageList(headerImageList); } imageList = headerImageList = null; long hStateList = OS.SendMessage(handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); OS.SendMessage(handle, OS.LVM_SETIMAGELIST, OS.LVSIL_STATE, 0); if (hStateList != 0) OS.ImageList_Destroy(hStateList); if (headerToolTipHandle != 0) OS.DestroyWindow(headerToolTipHandle); headerToolTipHandle = 0; } /** * Removes the items from the receiver's list at the given * zero-relative indices. * * @param indices the array of indices of the items * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> * <li>ERROR_NULL_ARGUMENT - if the indices array is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void remove(int[] indices) { checkWidget(); if (indices == null) error(SWT.ERROR_NULL_ARGUMENT); if (indices.length == 0) return; int[] newIndices = new int[indices.length]; System.arraycopy(indices, 0, newIndices, 0, indices.length); sort(newIndices); int start = newIndices[newIndices.length - 1], end = newIndices[0]; int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (!(0 <= start && start <= end && end < count)) { error(SWT.ERROR_INVALID_RANGE); } setDeferResize(true); int last = -1; for (int i = 0; i < newIndices.length; i++) { int index = newIndices[i]; if (index != last) { TableItem item = _getItem(index, false); if (item != null && !item.isDisposed()) item.release(false); ignoreSelect = ignoreShrink = true; long code = OS.SendMessage(handle, OS.LVM_DELETEITEM, index, 0); ignoreSelect = ignoreShrink = false; if (code == 0) error(SWT.ERROR_ITEM_NOT_REMOVED); _removeItem(index, count); --count; last = index; } } if (count == 0) setTableEmpty(); setDeferResize(false); } /** * Removes the item from the receiver at the given * zero-relative index. * * @param index the index for the item * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void remove(int index) { checkWidget(); int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (!(0 <= index && index < count)) error(SWT.ERROR_INVALID_RANGE); TableItem item = _getItem(index, false); if (item != null && !item.isDisposed()) item.release(false); setDeferResize(true); ignoreSelect = ignoreShrink = true; long code = OS.SendMessage(handle, OS.LVM_DELETEITEM, index, 0); ignoreSelect = ignoreShrink = false; if (code == 0) error(SWT.ERROR_ITEM_NOT_REMOVED); _removeItem(index, count); --count; if (count == 0) setTableEmpty(); setDeferResize(false); } /** * Removes the items from the receiver which are * between the given zero-relative start and end * indices (inclusive). * * @param start the start of the range * @param end the end of the range * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void remove(int start, int end) { checkWidget(); if (start > end) return; int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (!(0 <= start && start <= end && end < count)) { error(SWT.ERROR_INVALID_RANGE); } if (start == 0 && end == count - 1) { removeAll(); } else { setDeferResize(true); int index = start; while (index <= end) { TableItem item = _getItem(index, false); if (item != null && !item.isDisposed()) item.release(false); ignoreSelect = ignoreShrink = true; long code = OS.SendMessage(handle, OS.LVM_DELETEITEM, start, 0); ignoreSelect = ignoreShrink = false; if (code == 0) break; index++; } _removeItems(start, index, count); if (index <= end) error(SWT.ERROR_ITEM_NOT_REMOVED); /* * This code is intentionally commented. It is not necessary * to check for an empty table because removeAll() was called * when the start == 0 and end == count - 1. */ //if (count - index == 0) setTableEmpty (); setDeferResize(false); } } /** * Removes all of the items from the receiver. * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void removeAll() { checkWidget(); int itemCount = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); for (int i = 0; i < itemCount; i++) { TableItem item = _getItem(i, false); if (item != null && !item.isDisposed()) item.release(false); } setDeferResize(true); ignoreSelect = ignoreShrink = true; long code = OS.SendMessage(handle, OS.LVM_DELETEALLITEMS, 0, 0); ignoreSelect = ignoreShrink = false; if (code == 0) error(SWT.ERROR_ITEM_NOT_REMOVED); setTableEmpty(); setDeferResize(false); } /** * Removes the listener from the collection of listeners who will * be notified when the user changes the receiver's selection. * * @param listener the listener which should no longer be notified * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see SelectionListener * @see #addSelectionListener(SelectionListener) */ public void removeSelectionListener(SelectionListener listener) { checkWidget(); if (listener == null) error(SWT.ERROR_NULL_ARGUMENT); if (eventTable == null) return; eventTable.unhook(SWT.Selection, listener); eventTable.unhook(SWT.DefaultSelection, listener); } /** * Selects the items at the given zero-relative indices in the receiver. * The current selection is not cleared before the new items are selected. * <p> * If the item at a given index is not selected, it is selected. * If the item at a given index was already selected, it remains selected. * Indices that are out of range and duplicate indices are ignored. * If the receiver is single-select and multiple indices are specified, * then all indices are ignored. * </p> * * @param indices the array of indices for the items to select * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the array of indices is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#setSelection(int[]) */ public void select(int[] indices) { checkWidget(); if (indices == null) error(SWT.ERROR_NULL_ARGUMENT); int length = indices.length; if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; LVITEM lvItem = new LVITEM(); lvItem.state = OS.LVIS_SELECTED; lvItem.stateMask = OS.LVIS_SELECTED; for (int i = length - 1; i >= 0; --i) { /* * An index of -1 will apply the change to all * items. Ensure that indices are greater than -1. */ if (indices[i] >= 0) { ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, indices[i], lvItem); ignoreSelect = false; } } } @Override void reskinChildren(int flags) { if (_hasItems()) { int itemCount = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); for (int i = 0; i < itemCount; i++) { TableItem item = _getItem(i, false); if (item != null) item.reskin(flags); } } if (columns != null) { for (int i = 0; i < columnCount; i++) { TableColumn column = columns[i]; if (!column.isDisposed()) column.reskin(flags); } } super.reskinChildren(flags); } /** * Selects the item at the given zero-relative index in the receiver. * If the item at the index was already selected, it remains * selected. Indices that are out of range are ignored. * * @param index the index of the item to select * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void select(int index) { checkWidget(); /* * An index of -1 will apply the change to all * items. Ensure that index is greater than -1. */ if (index < 0) return; LVITEM lvItem = new LVITEM(); lvItem.state = OS.LVIS_SELECTED; lvItem.stateMask = OS.LVIS_SELECTED; ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, index, lvItem); ignoreSelect = false; } /** * Selects the items in the range specified by the given zero-relative * indices in the receiver. The range of indices is inclusive. * The current selection is not cleared before the new items are selected. * <p> * If an item in the given range is not selected, it is selected. * If an item in the given range was already selected, it remains selected. * Indices that are out of range are ignored and no items will be selected * if start is greater than end. * If the receiver is single-select and there is more than one item in the * given range, then all indices are ignored. * </p> * * @param start the start of the range * @param end the end of the range * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#setSelection(int,int) */ public void select(int start, int end) { checkWidget(); if (end < 0 || start > end || ((style & SWT.SINGLE) != 0 && start != end)) return; int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (count == 0 || start >= count) return; start = Math.max(0, start); end = Math.min(end, count - 1); if (start == 0 && end == count - 1) { selectAll(); } else { /* * An index of -1 will apply the change to all * items. Indices must be greater than -1. */ LVITEM lvItem = new LVITEM(); lvItem.state = OS.LVIS_SELECTED; lvItem.stateMask = OS.LVIS_SELECTED; for (int i = start; i <= end; i++) { ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, i, lvItem); ignoreSelect = false; } } } /** * Selects all of the items in the receiver. * <p> * If the receiver is single-select, do nothing. * </p> * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void selectAll() { checkWidget(); if ((style & SWT.SINGLE) != 0) return; LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_STATE; lvItem.state = OS.LVIS_SELECTED; lvItem.stateMask = OS.LVIS_SELECTED; ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, -1, lvItem); ignoreSelect = false; } void sendEraseItemEvent(TableItem item, NMLVCUSTOMDRAW nmcd, long lParam, Event measureEvent) { long hDC = nmcd.hdc; int clrText = item.cellForeground != null ? item.cellForeground[nmcd.iSubItem] : -1; if (clrText == -1) clrText = item.foreground; int clrTextBk = -1; if (OS.IsAppThemed()) { if (sortColumn != null && sortDirection != SWT.NONE) { if (findImageControl() == null) { if (indexOf(sortColumn) == nmcd.iSubItem) { clrTextBk = getSortColumnPixel(); } } } } clrTextBk = item.cellBackground != null ? item.cellBackground[nmcd.iSubItem] : -1; if (clrTextBk == -1) clrTextBk = item.background; /* * Bug in Windows. For some reason, CDIS_SELECTED always set, * even for items that are not selected. The fix is to get * the selection state from the item. */ LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_STATE; lvItem.stateMask = OS.LVIS_SELECTED; lvItem.iItem = (int) nmcd.dwItemSpec; long result = OS.SendMessage(handle, OS.LVM_GETITEM, 0, lvItem); boolean selected = (result != 0 && (lvItem.state & OS.LVIS_SELECTED) != 0); GCData data = new GCData(); data.device = display; int clrSelectionBk = -1; boolean drawSelected = false, drawBackground = false, drawHot = false, drawDrophilited = false; if (nmcd.iSubItem == 0 || (style & SWT.FULL_SELECTION) != 0) { drawHot = hotIndex == nmcd.dwItemSpec; drawDrophilited = (nmcd.uItemState & OS.CDIS_DROPHILITED) != 0; } if (OS.IsWindowEnabled(handle)) { if (selected && (nmcd.iSubItem == 0 || (style & SWT.FULL_SELECTION) != 0)) { if (OS.GetFocus() == handle || display.getHighContrast()) { drawSelected = true; data.foreground = OS.GetSysColor(OS.COLOR_HIGHLIGHTTEXT); data.background = clrSelectionBk = OS.GetSysColor(OS.COLOR_HIGHLIGHT); } else { drawSelected = (style & SWT.HIDE_SELECTION) == 0; data.foreground = OS.GetTextColor(hDC); data.background = clrSelectionBk = OS.GetSysColor(OS.COLOR_3DFACE); } if (explorerTheme) { data.foreground = clrText != -1 ? clrText : getForegroundPixel(); } } else { drawBackground = clrTextBk != -1; /* * Bug in Windows. When LVM_SETTEXTBKCOLOR, LVM_SETBKCOLOR * or LVM_SETTEXTCOLOR is used to set the background color of * the the text or the control, the color is not set in the HDC * that is provided in Custom Draw. The fix is to explicitly * set the color. */ if (clrText == -1 || clrTextBk == -1) { Control control = findBackgroundControl(); if (control == null) control = this; if (clrText == -1) clrText = control.getForegroundPixel(); if (clrTextBk == -1) clrTextBk = control.getBackgroundPixel(); } data.foreground = clrText != -1 ? clrText : OS.GetTextColor(hDC); data.background = clrTextBk != -1 ? clrTextBk : OS.GetBkColor(hDC); } } else { data.foreground = OS.GetSysColor(OS.COLOR_GRAYTEXT); data.background = OS.GetSysColor(OS.COLOR_3DFACE); if (selected) clrSelectionBk = data.background; } data.font = item.getFont(nmcd.iSubItem); data.uiState = (int) OS.SendMessage(handle, OS.WM_QUERYUISTATE, 0, 0); int nSavedDC = OS.SaveDC(hDC); GC gc = GC.win32_new(hDC, data); RECT cellRect = item.getBounds((int) nmcd.dwItemSpec, nmcd.iSubItem, true, true, true, true, hDC); Event event = new Event(); event.item = item; event.gc = gc; event.index = nmcd.iSubItem; event.detail |= SWT.FOREGROUND; // if ((nmcd.uItemState & OS.CDIS_FOCUS) != 0) { if (OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED) == nmcd.dwItemSpec) { if (nmcd.iSubItem == 0 || (style & SWT.FULL_SELECTION) != 0) { if (handle == OS.GetFocus()) { int uiState = (int) OS.SendMessage(handle, OS.WM_QUERYUISTATE, 0, 0); if ((uiState & OS.UISF_HIDEFOCUS) == 0) event.detail |= SWT.FOCUSED; } } } boolean focused = (event.detail & SWT.FOCUSED) != 0; if (drawHot) event.detail |= SWT.HOT; if (drawSelected) event.detail |= SWT.SELECTED; if (drawBackground) event.detail |= SWT.BACKGROUND; Rectangle boundsInPixels = new Rectangle(cellRect.left, cellRect.top, cellRect.right - cellRect.left, cellRect.bottom - cellRect.top); event.setBoundsInPixels(boundsInPixels); gc.setClipping(DPIUtil.autoScaleDown(boundsInPixels)); sendEvent(SWT.EraseItem, event); event.gc = null; int clrSelectionText = data.foreground; gc.dispose(); OS.RestoreDC(hDC, nSavedDC); if (isDisposed() || item.isDisposed()) return; if (event.doit) { ignoreDrawForeground = (event.detail & SWT.FOREGROUND) == 0; ignoreDrawBackground = (event.detail & SWT.BACKGROUND) == 0; ignoreDrawSelection = (event.detail & SWT.SELECTED) == 0; ignoreDrawFocus = (event.detail & SWT.FOCUSED) == 0; ignoreDrawHot = (event.detail & SWT.HOT) == 0; } else { ignoreDrawForeground = ignoreDrawBackground = ignoreDrawSelection = ignoreDrawFocus = ignoreDrawHot = true; } if (drawSelected) { if (ignoreDrawSelection) { ignoreDrawHot = true; if (nmcd.iSubItem == 0 || (style & SWT.FULL_SELECTION) != 0) { selectionForeground = clrSelectionText; } nmcd.uItemState &= ~OS.CDIS_SELECTED; OS.MoveMemory(lParam, nmcd, NMLVCUSTOMDRAW.sizeof); } } else { if (ignoreDrawSelection) { nmcd.uItemState |= OS.CDIS_SELECTED; OS.MoveMemory(lParam, nmcd, NMLVCUSTOMDRAW.sizeof); } } boolean firstColumn = nmcd.iSubItem == OS.SendMessage(hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); if (ignoreDrawForeground && ignoreDrawHot && !drawDrophilited) { if (!ignoreDrawBackground && drawBackground) { RECT backgroundRect = item.getBounds((int) nmcd.dwItemSpec, nmcd.iSubItem, true, false, true, false, hDC); fillBackground(hDC, clrTextBk, backgroundRect); } } focusRect = null; if (!ignoreDrawHot || !ignoreDrawSelection || !ignoreDrawFocus || drawDrophilited) { boolean fullText = (style & SWT.FULL_SELECTION) != 0 || !firstColumn; RECT textRect = item.getBounds((int) nmcd.dwItemSpec, nmcd.iSubItem, true, false, fullText, false, hDC); if ((style & SWT.FULL_SELECTION) == 0) { if (measureEvent != null) { Rectangle boundInPixels = measureEvent.getBoundsInPixels(); textRect.right = Math.min(cellRect.right, boundInPixels.x + boundInPixels.width); } if (!ignoreDrawFocus) { nmcd.uItemState &= ~OS.CDIS_FOCUS; OS.MoveMemory(lParam, nmcd, NMLVCUSTOMDRAW.sizeof); focusRect = textRect; } } if (explorerTheme) { if (!ignoreDrawHot || drawDrophilited || (!ignoreDrawSelection && clrSelectionBk != -1)) { RECT pClipRect = new RECT(); OS.SetRect(pClipRect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); RECT rect = new RECT(); OS.SetRect(rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); if ((style & SWT.FULL_SELECTION) != 0) { int count = (int) OS.SendMessage(hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); int index = (int) OS.SendMessage(hwndHeader, OS.HDM_ORDERTOINDEX, count - 1, 0); RECT headerRect = new RECT(); OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); OS.MapWindowPoints(hwndHeader, handle, headerRect, 2); rect.right = headerRect.right; index = (int) OS.SendMessage(hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); OS.MapWindowPoints(hwndHeader, handle, headerRect, 2); rect.left = headerRect.left; pClipRect.left = cellRect.left; pClipRect.right += EXPLORER_EXTRA; } else { rect.right += EXPLORER_EXTRA; pClipRect.right += EXPLORER_EXTRA; } long hTheme = OS.OpenThemeData(handle, Display.LISTVIEW); int iStateId = selected ? OS.LISS_SELECTED : OS.LISS_HOT; if (OS.GetFocus() != handle && selected && !drawHot) iStateId = OS.LISS_SELECTEDNOTFOCUS; if (drawDrophilited) iStateId = OS.LISS_SELECTED; OS.DrawThemeBackground(hTheme, hDC, OS.LVP_LISTITEM, iStateId, rect, pClipRect); OS.CloseThemeData(hTheme); } } else { if (!ignoreDrawSelection && clrSelectionBk != -1) fillBackground(hDC, clrSelectionBk, textRect); } } if (focused && ignoreDrawFocus) { nmcd.uItemState &= ~OS.CDIS_FOCUS; OS.MoveMemory(lParam, nmcd, NMLVCUSTOMDRAW.sizeof); } if (ignoreDrawForeground) { RECT clipRect = item.getBounds((int) nmcd.dwItemSpec, nmcd.iSubItem, true, true, true, false, hDC); OS.SaveDC(hDC); OS.SelectClipRgn(hDC, 0); OS.ExcludeClipRect(hDC, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); } } Event sendEraseItemEvent(TableItem item, NMTTCUSTOMDRAW nmcd, int column, RECT cellRect) { int nSavedDC = OS.SaveDC(nmcd.hdc); RECT insetRect = toolTipInset(cellRect); OS.SetWindowOrgEx(nmcd.hdc, insetRect.left, insetRect.top, null); GCData data = new GCData(); data.device = display; data.foreground = OS.GetTextColor(nmcd.hdc); data.background = OS.GetBkColor(nmcd.hdc); data.font = item.getFont(column); data.uiState = (int) OS.SendMessage(handle, OS.WM_QUERYUISTATE, 0, 0); GC gc = GC.win32_new(nmcd.hdc, data); Event event = new Event(); event.item = item; event.index = column; event.gc = gc; event.detail |= SWT.FOREGROUND; event.setBoundsInPixels(new Rectangle(cellRect.left, cellRect.top, cellRect.right - cellRect.left, cellRect.bottom - cellRect.top)); //gc.setClipping (event.x, event.y, event.width, event.height); sendEvent(SWT.EraseItem, event); event.gc = null; //int newTextClr = data.foreground; gc.dispose(); OS.RestoreDC(nmcd.hdc, nSavedDC); return event; } Event sendMeasureItemEvent(TableItem item, int row, int column, long hDC) { GCData data = new GCData(); data.device = display; data.font = item.getFont(column); int nSavedDC = OS.SaveDC(hDC); GC gc = GC.win32_new(hDC, data); RECT itemRect = item.getBounds(row, column, true, true, false, false, hDC); Event event = new Event(); event.item = item; event.gc = gc; event.index = column; event.setBoundsInPixels(new Rectangle(itemRect.left, itemRect.top, itemRect.right - itemRect.left, itemRect.bottom - itemRect.top)); boolean drawSelected = false; if (OS.IsWindowEnabled(handle)) { LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_STATE; lvItem.stateMask = OS.LVIS_SELECTED; lvItem.iItem = (int) row; long result = OS.SendMessage(handle, OS.LVM_GETITEM, 0, lvItem); boolean selected = (result != 0 && (lvItem.state & OS.LVIS_SELECTED) != 0); if (selected && (column == 0 || (style & SWT.FULL_SELECTION) != 0)) { if (OS.GetFocus() == handle || display.getHighContrast()) { drawSelected = true; } else { drawSelected = (style & SWT.HIDE_SELECTION) == 0; } } } if (drawSelected) event.detail |= SWT.SELECTED; sendEvent(SWT.MeasureItem, event); event.gc = null; gc.dispose(); OS.RestoreDC(hDC, nSavedDC); if (!isDisposed() && !item.isDisposed()) { Rectangle boundsInPixels = event.getBoundsInPixels(); if (columnCount == 0) { int width = (int) OS.SendMessage(handle, OS.LVM_GETCOLUMNWIDTH, 0, 0); if (boundsInPixels.x + boundsInPixels.width > width) setScrollWidth(boundsInPixels.x + boundsInPixels.width); } long empty = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); long oneItem = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); int itemHeight = OS.HIWORD(oneItem) - OS.HIWORD(empty); /* * Possible recursion: when setItemHeight() is called during * SWT.MeasureItem event processing with a non-zero table-row * selection. Refer bug 400174 and 458786 */ if (!settingItemHeight && boundsInPixels.height > itemHeight) { settingItemHeight = true; setItemHeight(boundsInPixels.height); settingItemHeight = false; } } return event; } LRESULT sendMouseDownEvent(int type, int button, int msg, long wParam, long lParam) { Display display = this.display; display.captureChanged = false; if (!sendMouseEvent(type, button, handle, msg, wParam, lParam)) { if (!display.captureChanged && !isDisposed()) { if (OS.GetCapture() != handle) OS.SetCapture(handle); } return LRESULT.ZERO; } /* * Feature in Windows. Inside WM_LBUTTONDOWN and WM_RBUTTONDOWN, * the widget starts a modal loop to determine if the user wants * to begin a drag/drop operation or marque select. Unfortunately, * this modal loop eats the corresponding mouse up. The fix is to * detect the cases when the modal loop has eaten the mouse up and * issue a fake mouse up. * * By observation, when the mouse is clicked anywhere but the check * box, the widget eats the mouse up. When the mouse is dragged, * the widget does not eat the mouse up. */ LVHITTESTINFO pinfo = new LVHITTESTINFO(); pinfo.x = OS.GET_X_LPARAM(lParam); pinfo.y = OS.GET_Y_LPARAM(lParam); OS.SendMessage(handle, OS.LVM_HITTEST, 0, pinfo); if ((style & SWT.FULL_SELECTION) == 0) { if (hooks(SWT.MeasureItem)) { /* * Bug in Windows. When LVM_SUBITEMHITTEST is used to hittest * a point that is above the table, instead of returning -1 to * indicate that the hittest failed, a negative index is returned. * The fix is to consider any value that is negative a failure. */ if (OS.SendMessage(handle, OS.LVM_SUBITEMHITTEST, 0, pinfo) < 0) { int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (count != 0) { RECT rect = new RECT(); rect.left = OS.LVIR_ICON; ignoreCustomDraw = true; long code = OS.SendMessage(handle, OS.LVM_GETITEMRECT, 0, rect); ignoreCustomDraw = false; if (code != 0) { pinfo.x = rect.left; /* * Bug in Windows. When LVM_SUBITEMHITTEST is used to hittest * a point that is above the table, instead of returning -1 to * indicate that the hittest failed, a negative index is returned. * The fix is to consider any value that is negative a failure. */ OS.SendMessage(handle, OS.LVM_SUBITEMHITTEST, 0, pinfo); if (pinfo.iItem < 0) pinfo.iItem = -1; pinfo.flags &= ~(OS.LVHT_ONITEMICON | OS.LVHT_ONITEMLABEL); } } } else { if (pinfo.iSubItem != 0) pinfo.iItem = -1; } } } /* * Force the table to have focus so that when the user * reselects the focus item, the LVIS_FOCUSED state bits * for the item will be set. If the user did not click on * an item, then set focus to the table so that it will * come to the front and take focus in the work around * below. */ OS.SetFocus(handle); /* * Feature in Windows. When the user selects outside of * a table item, Windows deselects all the items, even * when the table is multi-select. While not strictly * wrong, this is unexpected. The fix is to detect the * case and avoid calling the window proc. */ if ((style & SWT.SINGLE) != 0 || hooks(SWT.MouseDown) || hooks(SWT.MouseUp)) { if (pinfo.iItem == -1) { if (!display.captureChanged && !isDisposed()) { if (OS.GetCapture() != handle) OS.SetCapture(handle); } return LRESULT.ZERO; } } /* * Feature in Windows. When a table item is reselected * in a single-select table, Windows does not issue a * WM_NOTIFY because the item state has not changed. * This is strictly correct but is inconsistent with the * list widget and other widgets in Windows. The fix is * to detect the case when an item is reselected and mark * it as selected. */ boolean forceSelect = false; int count = (int) OS.SendMessage(handle, OS.LVM_GETSELECTEDCOUNT, 0, 0); if (count == 1 && pinfo.iItem != -1) { LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_STATE; lvItem.stateMask = OS.LVIS_SELECTED; lvItem.iItem = pinfo.iItem; OS.SendMessage(handle, OS.LVM_GETITEM, 0, lvItem); if ((lvItem.state & OS.LVIS_SELECTED) != 0) { forceSelect = true; } } /* Determine whether the user has selected an item based on SWT.MeasureItem */ fullRowSelect = false; if (pinfo.iItem != -1) { if ((style & SWT.FULL_SELECTION) == 0) { if (hooks(SWT.MeasureItem)) { fullRowSelect = hitTestSelection(pinfo.iItem, pinfo.x, pinfo.y); if (fullRowSelect) { int flags = OS.LVHT_ONITEMICON | OS.LVHT_ONITEMLABEL; if ((pinfo.flags & flags) != 0) fullRowSelect = false; } } } } /* * Feature in Windows. Inside WM_LBUTTONDOWN and WM_RBUTTONDOWN, * the widget starts a modal loop to determine if the user wants * to begin a drag/drop operation or marque select. This modal * loop eats mouse events until a drag is detected. The fix is * to avoid this behavior by only running the drag and drop when * the event is hooked and the mouse is over an item. */ boolean dragDetect = (state & DRAG_DETECT) != 0 && hooks(SWT.DragDetect); if (!dragDetect) { int flags = OS.LVHT_ONITEMICON | OS.LVHT_ONITEMLABEL; dragDetect = pinfo.iItem == -1 || (pinfo.flags & flags) == 0; if (fullRowSelect) dragDetect = true; } /* * Temporarily set LVS_EX_FULLROWSELECT to allow drag and drop * and the mouse to manipulate items based on the results of * the SWT.MeasureItem event. */ if (fullRowSelect) { OS.UpdateWindow(handle); OS.DefWindowProc(handle, OS.WM_SETREDRAW, 0, 0); OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_FULLROWSELECT, OS.LVS_EX_FULLROWSELECT); } dragStarted = false; display.dragCancelled = false; if (!dragDetect) display.runDragDrop = false; long code = callWindowProc(handle, msg, wParam, lParam, forceSelect); if (!dragDetect) display.runDragDrop = true; if (fullRowSelect) { fullRowSelect = false; OS.DefWindowProc(handle, OS.WM_SETREDRAW, 1, 0); OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_FULLROWSELECT, 0); } if (dragStarted || display.dragCancelled) { if (!display.captureChanged && !isDisposed()) { if (OS.GetCapture() != handle) OS.SetCapture(handle); } } else { int flags = OS.LVHT_ONITEMLABEL | OS.LVHT_ONITEMICON; boolean fakeMouseUp = (pinfo.flags & flags) != 0; if (!fakeMouseUp && (style & SWT.MULTI) != 0) { fakeMouseUp = (pinfo.flags & OS.LVHT_ONITEMSTATEICON) == 0; } if (fakeMouseUp) { sendMouseEvent(SWT.MouseUp, button, handle, msg, wParam, lParam); } } return new LRESULT(code); } void sendPaintItemEvent(TableItem item, NMLVCUSTOMDRAW nmcd) { long hDC = nmcd.hdc; GCData data = new GCData(); data.device = display; data.font = item.getFont(nmcd.iSubItem); /* * Bug in Windows. For some reason, CDIS_SELECTED always set, * even for items that are not selected. The fix is to get * the selection state from the item. */ LVITEM lvItem = new LVITEM(); lvItem.mask = OS.LVIF_STATE; lvItem.stateMask = OS.LVIS_SELECTED; lvItem.iItem = (int) nmcd.dwItemSpec; long result = OS.SendMessage(handle, OS.LVM_GETITEM, 0, lvItem); boolean selected = result != 0 && (lvItem.state & OS.LVIS_SELECTED) != 0; boolean drawSelected = false, drawBackground = false, drawHot = false; if (nmcd.iSubItem == 0 || (style & SWT.FULL_SELECTION) != 0) { drawHot = hotIndex == nmcd.dwItemSpec; } if (OS.IsWindowEnabled(handle)) { if (selected && (nmcd.iSubItem == 0 || (style & SWT.FULL_SELECTION) != 0)) { if (OS.GetFocus() == handle || display.getHighContrast()) { drawSelected = true; if (selectionForeground != -1) { data.foreground = selectionForeground; } else { data.foreground = OS.GetSysColor(OS.COLOR_HIGHLIGHTTEXT); } data.background = OS.GetSysColor(OS.COLOR_HIGHLIGHT); } else { drawSelected = (style & SWT.HIDE_SELECTION) == 0; data.foreground = OS.GetTextColor(hDC); data.background = OS.GetSysColor(OS.COLOR_3DFACE); } if (explorerTheme && selectionForeground == -1) { int clrText = item.cellForeground != null ? item.cellForeground[nmcd.iSubItem] : -1; if (clrText == -1) clrText = item.foreground; data.foreground = clrText != -1 ? clrText : getForegroundPixel(); } } else { int clrText = item.cellForeground != null ? item.cellForeground[nmcd.iSubItem] : -1; if (clrText == -1) clrText = item.foreground; int clrTextBk = item.cellBackground != null ? item.cellBackground[nmcd.iSubItem] : -1; if (clrTextBk == -1) clrTextBk = item.background; drawBackground = clrTextBk != -1; /* * Bug in Windows. When LVM_SETTEXTBKCOLOR, LVM_SETBKCOLOR * or LVM_SETTEXTCOLOR is used to set the background color of * the the text or the control, the color is not set in the HDC * that is provided in Custom Draw. The fix is to explicitly * set the color. */ if (clrText == -1 || clrTextBk == -1) { Control control = findBackgroundControl(); if (control == null) control = this; if (clrText == -1) clrText = control.getForegroundPixel(); if (clrTextBk == -1) clrTextBk = control.getBackgroundPixel(); } data.foreground = clrText != -1 ? clrText : OS.GetTextColor(hDC); data.background = clrTextBk != -1 ? clrTextBk : OS.GetBkColor(hDC); } } else { data.foreground = OS.GetSysColor(OS.COLOR_GRAYTEXT); data.background = OS.GetSysColor(OS.COLOR_3DFACE); } data.uiState = (int) OS.SendMessage(handle, OS.WM_QUERYUISTATE, 0, 0); int nSavedDC = OS.SaveDC(hDC); GC gc = GC.win32_new(hDC, data); RECT itemRect = item.getBounds((int) nmcd.dwItemSpec, nmcd.iSubItem, true, true, false, false, hDC); Event event = new Event(); event.item = item; event.gc = gc; event.index = nmcd.iSubItem; event.detail |= SWT.FOREGROUND; // if ((nmcd.uItemState & OS.CDIS_FOCUS) != 0) { if (OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED) == nmcd.dwItemSpec) { if (nmcd.iSubItem == 0 || (style & SWT.FULL_SELECTION) != 0) { if (handle == OS.GetFocus()) { int uiState = (int) OS.SendMessage(handle, OS.WM_QUERYUISTATE, 0, 0); if ((uiState & OS.UISF_HIDEFOCUS) == 0) event.detail |= SWT.FOCUSED; } } } if (drawHot) event.detail |= SWT.HOT; if (drawSelected) event.detail |= SWT.SELECTED; if (drawBackground) event.detail |= SWT.BACKGROUND; event.setBoundsInPixels(new Rectangle(itemRect.left, itemRect.top, itemRect.right - itemRect.left, itemRect.bottom - itemRect.top)); RECT cellRect = item.getBounds((int) nmcd.dwItemSpec, nmcd.iSubItem, true, true, true, true, hDC); int cellWidth = cellRect.right - cellRect.left; int cellHeight = cellRect.bottom - cellRect.top; gc.setClipping(DPIUtil.autoScaleDown(new Rectangle(cellRect.left, cellRect.top, cellWidth, cellHeight))); sendEvent(SWT.PaintItem, event); if (data.focusDrawn) focusRect = null; event.gc = null; gc.dispose(); OS.RestoreDC(hDC, nSavedDC); } Event sendPaintItemEvent(TableItem item, NMTTCUSTOMDRAW nmcd, int column, RECT itemRect) { int nSavedDC = OS.SaveDC(nmcd.hdc); RECT insetRect = toolTipInset(itemRect); OS.SetWindowOrgEx(nmcd.hdc, insetRect.left, insetRect.top, null); GCData data = new GCData(); data.device = display; data.font = item.getFont(column); data.foreground = OS.GetTextColor(nmcd.hdc); data.background = OS.GetBkColor(nmcd.hdc); data.uiState = (int) OS.SendMessage(handle, OS.WM_QUERYUISTATE, 0, 0); GC gc = GC.win32_new(nmcd.hdc, data); Event event = new Event(); event.item = item; event.index = column; event.gc = gc; event.detail |= SWT.FOREGROUND; event.setBoundsInPixels(new Rectangle(itemRect.left, itemRect.top, itemRect.right - itemRect.left, itemRect.bottom - itemRect.top)); //gc.setClipping (cellRect.left, cellRect.top, cellWidth, cellHeight); sendEvent(SWT.PaintItem, event); event.gc = null; gc.dispose(); OS.RestoreDC(nmcd.hdc, nSavedDC); return event; } @Override void setBackgroundImage(long hBitmap) { super.setBackgroundImage(hBitmap); if (hBitmap != 0) { setBackgroundTransparent(true); } else { if (!hooks(SWT.MeasureItem) && !hooks(SWT.EraseItem) && !hooks(SWT.PaintItem)) { setBackgroundTransparent(false); } } } @Override void setBackgroundPixel(int newPixel) { int oldPixel = (int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0); if (oldPixel != OS.CLR_NONE) { if (findImageControl() != null) return; if (newPixel == -1) newPixel = defaultBackground(); if (oldPixel != newPixel) { OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, newPixel); OS.SendMessage(handle, OS.LVM_SETTEXTBKCOLOR, 0, newPixel); if ((style & SWT.CHECK) != 0) fixCheckboxImageListColor(true); } } /* * Feature in Windows. When the background color is changed, * the table does not redraw until the next WM_PAINT. The fix * is to force a redraw. */ OS.InvalidateRect(handle, null, true); } void setBackgroundTransparent(boolean transparent) { /* * Bug in Windows. When the table has the extended style * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with * CLR_NONE to make the table transparent, Windows draws * a black rectangle around the first column. The fix is * clear LVS_EX_FULLROWSELECT. * * Feature in Windows. When LVM_SETBKCOLOR is used with * CLR_NONE and LVM_SETSELECTEDCOLUMN is used to select * a column, Windows fills the column with the selection * color, drawing on top of the background image and any * other custom drawing. The fix is to clear the selected * column. */ int oldPixel = (int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0); if (transparent) { if (oldPixel != OS.CLR_NONE) { /* * Bug in Windows. When the background color is changed, * the table does not redraw until the next WM_PAINT. The * fix is to force a redraw. */ OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, OS.CLR_NONE); OS.SendMessage(handle, OS.LVM_SETTEXTBKCOLOR, 0, OS.CLR_NONE); OS.InvalidateRect(handle, null, true); /* Clear LVS_EX_FULLROWSELECT */ if (!explorerTheme && (style & SWT.FULL_SELECTION) != 0) { int bits = OS.LVS_EX_FULLROWSELECT; OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, 0); } /* Clear LVM_SETSELECTEDCOLUMN */ if ((sortDirection & (SWT.UP | SWT.DOWN)) != 0) { if (sortColumn != null && !sortColumn.isDisposed()) { OS.SendMessage(handle, OS.LVM_SETSELECTEDCOLUMN, -1, 0); /* * Bug in Windows. When LVM_SETSELECTEDCOLUMN is set, Windows * does not redraw either the new or the previous selected column. * The fix is to force a redraw. */ OS.InvalidateRect(handle, null, true); } } } } else { if (oldPixel == OS.CLR_NONE) { Control control = findBackgroundControl(); if (control == null) control = this; if (control.backgroundImage == null) { int newPixel = control.getBackgroundPixel(); OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, newPixel); OS.SendMessage(handle, OS.LVM_SETTEXTBKCOLOR, 0, newPixel); if ((style & SWT.CHECK) != 0) fixCheckboxImageListColor(true); OS.InvalidateRect(handle, null, true); } /* Set LVS_EX_FULLROWSELECT */ if (!explorerTheme && (style & SWT.FULL_SELECTION) != 0) { if (!hooks(SWT.EraseItem) && !hooks(SWT.PaintItem)) { int bits = OS.LVS_EX_FULLROWSELECT; OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, bits); } } /* Set LVM_SETSELECTEDCOLUMN */ if ((sortDirection & (SWT.UP | SWT.DOWN)) != 0) { if (sortColumn != null && !sortColumn.isDisposed()) { int column = indexOf(sortColumn); if (column != -1) { OS.SendMessage(handle, OS.LVM_SETSELECTEDCOLUMN, column, 0); /* * Bug in Windows. When LVM_SETSELECTEDCOLUMN is set, Windows * does not redraw either the new or the previous selected column. * The fix is to force a redraw. */ OS.InvalidateRect(handle, null, true); } } } } } } @Override void setBoundsInPixels(int x, int y, int width, int height, int flags, boolean defer) { /* * Bug in Windows. If the table column widths are adjusted * in WM_SIZE or WM_POSITIONCHANGED using LVM_SETCOLUMNWIDTH * blank lines may be inserted at the top of the table. A * call to LVM_GETTOPINDEX will return a negative number (this * is an impossible result). Once the blank lines appear, * there seems to be no way to get rid of them, other than * destroying and recreating the table. The fix is to send * the resize notification after the size has been changed in * the operating system. * * NOTE: This does not fix the case when the user is resizing * columns dynamically. There is no fix for this case at this * time. */ setDeferResize(true); super.setBoundsInPixels(x, y, width, height, flags, false); setDeferResize(false); } /** * Sets the order that the items in the receiver should * be displayed in to the given argument which is described * in terms of the zero-relative ordering of when the items * were added. * * @param order the new order to display the items * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the item order is null</li> * <li>ERROR_INVALID_ARGUMENT - if the item order is not the same length as the number of items</li> * </ul> * * @see Table#getColumnOrder() * @see TableColumn#getMoveable() * @see TableColumn#setMoveable(boolean) * @see SWT#Move * * @since 3.1 */ public void setColumnOrder(int[] order) { checkWidget(); if (order == null) error(SWT.ERROR_NULL_ARGUMENT); if (columnCount == 0) { if (order.length != 0) error(SWT.ERROR_INVALID_ARGUMENT); return; } if (order.length != columnCount) error(SWT.ERROR_INVALID_ARGUMENT); int[] oldOrder = new int[columnCount]; OS.SendMessage(handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, oldOrder); boolean reorder = false; boolean[] seen = new boolean[columnCount]; for (int i = 0; i < order.length; i++) { int index = order[i]; if (index < 0 || index >= columnCount) error(SWT.ERROR_INVALID_RANGE); if (seen[index]) error(SWT.ERROR_INVALID_ARGUMENT); seen[index] = true; if (index != oldOrder[i]) reorder = true; } if (reorder) { RECT[] oldRects = new RECT[columnCount]; for (int i = 0; i < columnCount; i++) { oldRects[i] = new RECT(); OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, i, oldRects[i]); } OS.SendMessage(handle, OS.LVM_SETCOLUMNORDERARRAY, order.length, order); /* * Bug in Windows. When LVM_SETCOLUMNORDERARRAY is used to change * the column order, the header redraws correctly but the table does * not. The fix is to force a redraw. */ OS.InvalidateRect(handle, null, true); TableColumn[] newColumns = new TableColumn[columnCount]; System.arraycopy(columns, 0, newColumns, 0, columnCount); RECT newRect = new RECT(); for (int i = 0; i < columnCount; i++) { TableColumn column = newColumns[i]; if (!column.isDisposed()) { OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, i, newRect); if (newRect.left != oldRects[i].left) { column.updateToolTip(i); column.sendEvent(SWT.Move); } } } } } void setCustomDraw(boolean customDraw) { if (this.customDraw == customDraw) return; if (!this.customDraw && customDraw && currentItem != null) { OS.InvalidateRect(handle, null, true); } this.customDraw = customDraw; } void setDeferResize(boolean defer) { if (defer) { if (resizeCount++ == 0) { wasResized = false; /* * Feature in Windows. When LVM_SETBKCOLOR is used with CLR_NONE * to make the background of the table transparent, drawing becomes * slow. The fix is to temporarily clear CLR_NONE when redraw is * turned off. */ if (hooks(SWT.MeasureItem) || hooks(SWT.EraseItem) || hooks(SWT.PaintItem)) { if (drawCount++ == 0 && OS.IsWindowVisible(handle)) { OS.DefWindowProc(handle, OS.WM_SETREDRAW, 0, 0); OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, 0xFFFFFF); } } } } else { if (--resizeCount == 0) { if (hooks(SWT.MeasureItem) || hooks(SWT.EraseItem) || hooks(SWT.PaintItem)) { if (--drawCount == 0 /*&& OS.IsWindowVisible (handle)*/) { OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, OS.CLR_NONE); OS.DefWindowProc(handle, OS.WM_SETREDRAW, 1, 0); int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; OS.RedrawWindow(handle, null, 0, flags); } } if (wasResized) { wasResized = false; setResizeChildren(false); sendEvent(SWT.Resize); if (isDisposed()) return; if (layout != null) { markLayout(false, false); updateLayout(false, false); } setResizeChildren(true); } } } } void setCheckboxImageList(int width, int height, boolean fixScroll) { if ((style & SWT.CHECK) == 0) return; int count = 8, flags = OS.ILC_COLOR32; if ((style & SWT.RIGHT_TO_LEFT) != 0) flags |= OS.ILC_MIRROR; if (!OS.IsAppThemed()) flags |= OS.ILC_MASK; long hStateList = OS.ImageList_Create(width, height, flags, count, count); long hDC = OS.GetDC(handle); long memDC = OS.CreateCompatibleDC(hDC); long hBitmap = OS.CreateCompatibleBitmap(hDC, width * count, height); long hOldBitmap = OS.SelectObject(memDC, hBitmap); RECT rect = new RECT(); OS.SetRect(rect, 0, 0, width * count, height); int clrBackground; if (OS.IsAppThemed()) { Control control = findBackgroundControl(); if (control == null) control = this; clrBackground = control.getBackgroundPixel(); } else { clrBackground = 0x020000FF; if ((clrBackground & 0xFFFFFF) == OS.GetSysColor(OS.COLOR_WINDOW)) { clrBackground = 0x0200FF00; } } long hBrush = OS.CreateSolidBrush(clrBackground); OS.FillRect(memDC, rect, hBrush); OS.DeleteObject(hBrush); long oldFont = OS.SelectObject(hDC, defaultFont()); TEXTMETRIC tm = new TEXTMETRIC(); OS.GetTextMetrics(hDC, tm); OS.SelectObject(hDC, oldFont); int itemWidth = Math.min(tm.tmHeight, width); int itemHeight = Math.min(tm.tmHeight, height); if (OS.IsAppThemed()) { /* * Feature in Windows. DrawThemeBackground stretches the checkbox * bitmap to fill the provided rectangle. To avoid stretching * artifacts, limit the rectangle to actual checkbox bitmap size. */ SIZE size = new SIZE(); OS.GetThemePartSize(display.hButtonTheme(), memDC, OS.BP_CHECKBOX, 0, null, OS.TS_TRUE, size); itemWidth = Math.min(size.cx, itemWidth); itemHeight = Math.min(size.cy, itemHeight); } int left = (width - itemWidth) / 2, top = (height - itemHeight) / 2; OS.SetRect(rect, left, top, left + itemWidth, top + itemHeight); if (OS.IsAppThemed()) { long hTheme = display.hButtonTheme(); OS.DrawThemeBackground(hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null); rect.left += width; rect.right += width; OS.DrawThemeBackground(hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_CHECKEDNORMAL, rect, null); rect.left += width; rect.right += width; OS.DrawThemeBackground(hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null); rect.left += width; rect.right += width; OS.DrawThemeBackground(hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_MIXEDNORMAL, rect, null); rect.left += width; rect.right += width; OS.DrawThemeBackground(hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDDISABLED, rect, null); rect.left += width; rect.right += width; OS.DrawThemeBackground(hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_CHECKEDDISABLED, rect, null); rect.left += width; rect.right += width; OS.DrawThemeBackground(hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDDISABLED, rect, null); rect.left += width; rect.right += width; OS.DrawThemeBackground(hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_MIXEDDISABLED, rect, null); } else { OS.DrawFrameControl(memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_FLAT); rect.left += width; rect.right += width; OS.DrawFrameControl(memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_FLAT); rect.left += width; rect.right += width; OS.DrawFrameControl(memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_INACTIVE | OS.DFCS_FLAT); rect.left += width; rect.right += width; OS.DrawFrameControl(memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_INACTIVE | OS.DFCS_FLAT); rect.left += width; rect.right += width; OS.DrawFrameControl(memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_FLAT); rect.left += width; rect.right += width; OS.DrawFrameControl(memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_FLAT); rect.left += width; rect.right += width; OS.DrawFrameControl(memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_INACTIVE | OS.DFCS_FLAT); rect.left += width; rect.right += width; OS.DrawFrameControl(memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_INACTIVE | OS.DFCS_FLAT); } OS.SelectObject(memDC, hOldBitmap); OS.DeleteDC(memDC); OS.ReleaseDC(handle, hDC); if (OS.IsAppThemed()) { OS.ImageList_Add(hStateList, hBitmap, 0); } else { OS.ImageList_AddMasked(hStateList, hBitmap, clrBackground); } OS.DeleteObject(hBitmap); /* * Bug in Windows. Making any change to an item that * changes the item height of a table while the table * is scrolled can cause the lines to draw incorrectly. * This happens even when the lines are not currently * visible and are shown afterwards. The fix is to * save the top index, scroll to the top of the table * and then restore the original top index. */ int topIndex = getTopIndex(); if (fixScroll && topIndex != 0) { setRedraw(false); setTopIndex(0); } long hOldStateList = OS.SendMessage(handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); OS.SendMessage(handle, OS.LVM_SETIMAGELIST, OS.LVSIL_STATE, hStateList); if (hOldStateList != 0) OS.ImageList_Destroy(hOldStateList); /* * Bug in Windows. Setting the LVSIL_STATE state image list * when the table already has a LVSIL_SMALL image list causes * pixel corruption of the images. The fix is to reset the * LVSIL_SMALL image list. */ long hImageList = OS.SendMessage(handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0); OS.SendMessage(handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, hImageList); if (fixScroll && topIndex != 0) { setTopIndex(topIndex); setRedraw(true); } } void setFocusIndex(int index) { // checkWidget (); /* * An index of -1 will apply the change to all * items. Ensure that index is greater than -1. */ if (index < 0) return; LVITEM lvItem = new LVITEM(); lvItem.state = OS.LVIS_FOCUSED; lvItem.stateMask = OS.LVIS_FOCUSED; ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, index, lvItem); ignoreSelect = false; OS.SendMessage(handle, OS.LVM_SETSELECTIONMARK, 0, index); } @Override public void setFont(Font font) { checkWidget(); /* * Bug in Windows. Making any change to an item that * changes the item height of a table while the table * is scrolled can cause the lines to draw incorrectly. * This happens even when the lines are not currently * visible and are shown afterwards. The fix is to * save the top index, scroll to the top of the table * and then restore the original top index. */ int topIndex = getTopIndex(); if (topIndex != 0) { setRedraw(false); setTopIndex(0); } if (itemHeight != -1) { int bits = OS.GetWindowLong(handle, OS.GWL_STYLE); OS.SetWindowLong(handle, OS.GWL_STYLE, bits | OS.LVS_OWNERDRAWFIXED); } super.setFont(font); if (itemHeight != -1) { int bits = OS.GetWindowLong(handle, OS.GWL_STYLE); OS.SetWindowLong(handle, OS.GWL_STYLE, bits & ~OS.LVS_OWNERDRAWFIXED); } setScrollWidth(null, true); if (topIndex != 0) { setTopIndex(topIndex); setRedraw(true); } /* * Bug in Windows. Setting the font will cause the table * to be redrawn but not the column headers. The fix is * to force a redraw of the column headers. */ OS.InvalidateRect(hwndHeader, null, true); } @Override void setForegroundPixel(int pixel) { /* * The Windows table control uses CLR_DEFAULT to indicate * that it is using the default foreground color. This * is undocumented. */ if (pixel == -1) pixel = OS.CLR_DEFAULT; OS.SendMessage(handle, OS.LVM_SETTEXTCOLOR, 0, pixel); /* * Feature in Windows. When the foreground color is * changed, the table does not redraw until the next * WM_PAINT. The fix is to force a redraw. */ OS.InvalidateRect(handle, null, true); OS.InvalidateRect(hwndHeader, null, true); } /** * Sets the header background color to the color specified * by the argument, or to the default system color if the argument is null. * <p> * Note: This operation is a <em>HINT</em> and is not supported on all platforms. If * the native header has a 3D look and feel (e.g. Windows 7), this method * will cause the header to look FLAT irrespective of the state of the table style. * </p> * @param color the new color (or null) * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * @since 3.106 */ public void setHeaderBackground(Color color) { checkWidget(); int pixel = -1; if (color != null) { if (color.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); pixel = color.handle; } if (pixel == headerBackground) return; headerBackground = pixel; if (getHeaderVisible()) { OS.InvalidateRect(hwndHeader, null, true); } } /** * Sets the header foreground color to the color specified * by the argument, or to the default system color if the argument is null. * <p> * Note: This operation is a <em>HINT</em> and is not supported on all platforms. If * the native header has a 3D look and feel (e.g. Windows 7), this method * will cause the header to look FLAT irrespective of the state of the table style. * </p> * @param color the new color (or null) * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * @since 3.106 */ public void setHeaderForeground(Color color) { checkWidget(); int pixel = -1; if (color != null) { if (color.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); pixel = color.handle; } if (pixel == headerForeground) return; headerForeground = pixel; if (getHeaderVisible()) { OS.InvalidateRect(hwndHeader, null, true); } } /** * Marks the receiver's header as visible if the argument is <code>true</code>, * and marks it invisible otherwise. * <p> * If one of the receiver's ancestors is not visible or some * other condition makes the receiver not visible, marking * it visible may not actually cause it to be displayed. * </p> * * @param show the new visibility state * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void setHeaderVisible(boolean show) { checkWidget(); int newBits = OS.GetWindowLong(handle, OS.GWL_STYLE); newBits &= ~OS.LVS_NOCOLUMNHEADER; if (!show) newBits |= OS.LVS_NOCOLUMNHEADER; /* * Feature in Windows. Setting or clearing LVS_NOCOLUMNHEADER * causes the table to scroll to the beginning. The fix is to * save and restore the top index causing the table to scroll * to the new location. */ int oldIndex = getTopIndex(); OS.SetWindowLong(handle, OS.GWL_STYLE, newBits); /* * Bug in Windows. Making any change to an item that * changes the item height of a table while the table * is scrolled can cause the lines to draw incorrectly. * This happens even when the lines are not currently * visible and are shown afterwards. The fix is to * save the top index, scroll to the top of the table * and then restore the original top index. */ int newIndex = getTopIndex(); if (newIndex != 0) { setRedraw(false); setTopIndex(0); } setTopIndex(oldIndex); if (newIndex != 0) { setRedraw(true); } updateHeaderToolTips(); } /** * Sets the number of items contained in the receiver. * * @param count the number of items * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @since 3.0 */ public void setItemCount(int count) { checkWidget(); count = Math.max(0, count); int itemCount = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (count == itemCount) return; setDeferResize(true); boolean isVirtual = (style & SWT.VIRTUAL) != 0; if (!isVirtual) setRedraw(false); int index = count; while (index < itemCount) { TableItem item = _getItem(index, false); if (item != null && !item.isDisposed()) item.release(false); if (!isVirtual) { ignoreSelect = ignoreShrink = true; long code = OS.SendMessage(handle, OS.LVM_DELETEITEM, count, 0); ignoreSelect = ignoreShrink = false; if (code == 0) break; } index++; } if (index < itemCount) error(SWT.ERROR_ITEM_NOT_REMOVED); _setItemCount(count, itemCount); if (isVirtual) { int flags = OS.LVSICF_NOINVALIDATEALL | OS.LVSICF_NOSCROLL; OS.SendMessage(handle, OS.LVM_SETITEMCOUNT, count, flags); /* * Bug in Windows. When a virtual table contains items and * LVM_SETITEMCOUNT is used to set the new item count to zero, * Windows does not redraw the table. Note that simply not * specifying LVSICF_NOINVALIDATEALL or LVSICF_NOSCROLL does * correct the problem. The fix is to force a redraw. */ if (count == 0 && itemCount != 0) { OS.InvalidateRect(handle, null, true); } } else { for (int i = itemCount; i < count; i++) { new TableItem(this, SWT.NONE, i, true); } } if (!isVirtual) setRedraw(true); if (itemCount == 0) setScrollWidth(null, false); setDeferResize(false); } void setItemHeight(boolean fixScroll) { /* * Bug in Windows. Making any change to an item that * changes the item height of a table while the table * is scrolled can cause the lines to draw incorrectly. * This happens even when the lines are not currently * visible and are shown afterwards. The fix is to * save the top index, scroll to the top of the table * and then restore the original top index. * */ int topIndex = getTopIndex(); if (fixScroll && topIndex != 0) { setRedraw(false); setTopIndex(0); } if (itemHeight == -1) { /* * Feature in Windows. Windows has no API to restore the * defualt item height for a table. The fix is to use * WM_SETFONT which recomputes and assigns the default item * height. */ long hFont = OS.SendMessage(handle, OS.WM_GETFONT, 0, 0); OS.SendMessage(handle, OS.WM_SETFONT, hFont, 0); } else { /* * Feature in Windows. Window has no API to set the item * height for a table. The fix is to set temporarily set * LVS_OWNERDRAWFIXED then resize the table, causing a * WM_MEASUREITEM to be sent, then clear LVS_OWNERDRAWFIXED. */ forceResize(); RECT rect = new RECT(); OS.GetWindowRect(handle, rect); int width = rect.right - rect.left, height = rect.bottom - rect.top; int bits = OS.GetWindowLong(handle, OS.GWL_STYLE); OS.SetWindowLong(handle, OS.GWL_STYLE, bits | OS.LVS_OWNERDRAWFIXED); int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOREDRAW | OS.SWP_NOZORDER; ignoreResize = true; OS.SetWindowPos(handle, 0, 0, 0, width, height + 1, flags); OS.SetWindowPos(handle, 0, 0, 0, width, height, flags); ignoreResize = false; OS.SetWindowLong(handle, OS.GWL_STYLE, bits); } if (fixScroll && topIndex != 0) { setTopIndex(topIndex); setRedraw(true); } } /** * Sets the height of the area which would be used to * display <em>one</em> of the items in the table. * * @param itemHeight the height of one item * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @since 3.2 */ /*public*/ void setItemHeight(int itemHeight) { checkWidget(); if (itemHeight < -1) error(SWT.ERROR_INVALID_ARGUMENT); this.itemHeight = itemHeight; setItemHeight(true); setScrollWidth(null, true); } /** * Marks the receiver's lines as visible if the argument is <code>true</code>, * and marks it invisible otherwise. Note that some platforms draw grid lines * while others may draw alternating row colors. * <p> * If one of the receiver's ancestors is not visible or some * other condition makes the receiver not visible, marking * it visible may not actually cause it to be displayed. * </p> * * @param show the new visibility state * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void setLinesVisible(boolean show) { checkWidget(); int newBits = show ? OS.LVS_EX_GRIDLINES : 0; OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_GRIDLINES, newBits); OS.InvalidateRect(hwndHeader, null, true); } @Override public void setRedraw(boolean redraw) { checkWidget(); /* * Feature in Windows. When WM_SETREDRAW is used to turn * off drawing in a widget, it clears the WS_VISIBLE bits * and then sets them when redraw is turned back on. This * means that WM_SETREDRAW will make a widget unexpectedly * visible. The fix is to track the visibility state while * drawing is turned off and restore it when drawing is turned * back on. */ if (drawCount == 0) { int bits = OS.GetWindowLong(handle, OS.GWL_STYLE); if ((bits & OS.WS_VISIBLE) == 0) state |= HIDDEN; } if (redraw) { if (--drawCount == 0) { /* * When many items are added to a table, it is faster to * temporarily unsubclass the window proc so that messages * are dispatched directly to the table. * * NOTE: This is optimization somewhat dangerous because any * operation can occur when redraw is turned off, even operations * where the table must be subclassed in order to have the correct * behavior or work around a Windows bug. * * This code is intentionally commented. */ // subclass (); /* Set the width of the horizontal scroll bar */ setScrollWidth(null, true); /* * Bug in Windows. For some reason, when WM_SETREDRAW is used * to turn redraw back on this may result in a WM_SIZE. If the * table column widths are adjusted in WM_SIZE, blank lines may * be inserted at the top of the widget. A call to LVM_GETTOPINDEX * will return a negative number (this is an impossible result). * The fix is to send the resize notification after the size has * been changed in the operating system. */ setDeferResize(true); OS.SendMessage(handle, OS.WM_SETREDRAW, 1, 0); if (hwndHeader != 0) OS.SendMessage(hwndHeader, OS.WM_SETREDRAW, 1, 0); if ((state & HIDDEN) != 0) { state &= ~HIDDEN; OS.ShowWindow(handle, OS.SW_HIDE); } else { int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; OS.RedrawWindow(handle, null, 0, flags); } setDeferResize(false); } } else { if (drawCount++ == 0) { OS.SendMessage(handle, OS.WM_SETREDRAW, 0, 0); if (hwndHeader != 0) OS.SendMessage(hwndHeader, OS.WM_SETREDRAW, 0, 0); /* * When many items are added to a table, it is faster to * temporarily unsubclass the window proc so that messages * are dispatched directly to the table. * * NOTE: This is optimization somewhat dangerous because any * operation can occur when redraw is turned off, even operations * where the table must be subclassed in order to have the correct * behavior or work around a Windows bug. * * This code is intentionally commented. */ // unsubclass (); } } } void setScrollWidth(int width) { if (width != (int) OS.SendMessage(handle, OS.LVM_GETCOLUMNWIDTH, 0, 0)) { /* * Feature in Windows. When LVM_SETCOLUMNWIDTH is sent, * Windows draws right away instead of queuing a WM_PAINT. * This can cause recursive calls when called from paint * or from messages that are retrieving the item data, * such as WM_NOTIFY, causing a stack overflow. The fix * is to turn off redraw and queue a repaint, collapsing * the recursive calls. */ boolean redraw = false; if (hooks(SWT.MeasureItem)) { redraw = getDrawing() && OS.IsWindowVisible(handle); } if (redraw) OS.DefWindowProc(handle, OS.WM_SETREDRAW, 0, 0); OS.SendMessage(handle, OS.LVM_SETCOLUMNWIDTH, 0, width); if (redraw) { OS.DefWindowProc(handle, OS.WM_SETREDRAW, 1, 0); int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; OS.RedrawWindow(handle, null, 0, flags); } } } boolean setScrollWidth(TableItem item, boolean force) { if (currentItem != null) { if (currentItem != item) fixScrollWidth = true; return false; } if (!force && (!getDrawing() || !OS.IsWindowVisible(handle))) { fixScrollWidth = true; return false; } fixScrollWidth = false; /* * NOTE: It is much faster to measure the strings and compute the * width of the scroll bar in non-virtual table rather than using * LVM_SETCOLUMNWIDTH with LVSCW_AUTOSIZE. */ if (columnCount == 0) { int newWidth = 0, imageIndent = 0, index = 0; int itemCount = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); while (index < itemCount) { String string = null; long hFont = -1; if (item != null) { string = item.text; imageIndent = Math.max(imageIndent, item.imageIndent); hFont = item.fontHandle(0); } else { TableItem tableItem = _getItem(index, false); if (tableItem != null) { string = tableItem.text; imageIndent = Math.max(imageIndent, tableItem.imageIndent); hFont = tableItem.fontHandle(0); } } if (string != null && string.length() != 0) { if (hFont != -1) { long hDC = OS.GetDC(handle); long oldFont = OS.SelectObject(hDC, hFont); int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; char[] buffer = string.toCharArray(); RECT rect = new RECT(); OS.DrawText(hDC, buffer, buffer.length, rect, flags); OS.SelectObject(hDC, oldFont); OS.ReleaseDC(handle, hDC); newWidth = Math.max(newWidth, rect.right - rect.left); } else { TCHAR buffer = new TCHAR(getCodePage(), string, true); newWidth = Math.max(newWidth, (int) OS.SendMessage(handle, OS.LVM_GETSTRINGWIDTH, 0, buffer)); } } if (item != null) break; index++; } /* * Bug in Windows. When the width of the first column is * small but not zero, Windows draws '...' outside of the * bounds of the text. This is strange, but only causes * problems when the item is selected. In this case, Windows * clears the '...' but doesn't redraw it when the item is * deselected, causing pixel corruption. The fix is to ensure * that the column is at least wide enough to draw a single * space. */ if (newWidth == 0) { char[] buffer = { ' ', '\0' }; newWidth = Math.max(newWidth, (int) OS.SendMessage(handle, OS.LVM_GETSTRINGWIDTH, 0, buffer)); } long hStateList = OS.SendMessage(handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); if (hStateList != 0) { int[] cx = new int[1], cy = new int[1]; OS.ImageList_GetIconSize(hStateList, cx, cy); newWidth += cx[0] + INSET; } long hImageList = OS.SendMessage(handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0); if (hImageList != 0) { int[] cx = new int[1], cy = new int[1]; OS.ImageList_GetIconSize(hImageList, cx, cy); newWidth += (imageIndent + 1) * cx[0]; } else { /* * Bug in Windows. When LVM_SETIMAGELIST is used to remove the * image list by setting it to NULL, the item width and height * is not changed and space is reserved for icons despite the * fact that there are none. The fix is to set the image list * to be very small before setting it to NULL. This causes * Windows to reserve the smallest possible space when an image * list is removed. In this case, the scroll width must be one * pixel larger. */ newWidth++; } newWidth += INSET * 2 + VISTA_EXTRA; int oldWidth = (int) OS.SendMessage(handle, OS.LVM_GETCOLUMNWIDTH, 0, 0); if (newWidth > oldWidth) { setScrollWidth(newWidth); return true; } } return false; } /** * Selects the items at the given zero-relative indices in the receiver. * The current selection is cleared before the new items are selected, * and if necessary the receiver is scrolled to make the new selection visible. * <p> * Indices that are out of range and duplicate indices are ignored. * If the receiver is single-select and multiple indices are specified, * then all indices are ignored. * </p> * * @param indices the indices of the items to select * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the array of indices is null</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#deselectAll() * @see Table#select(int[]) */ public void setSelection(int[] indices) { checkWidget(); if (indices == null) error(SWT.ERROR_NULL_ARGUMENT); deselectAll(); int length = indices.length; if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; select(indices); int focusIndex = indices[0]; if (focusIndex != -1) setFocusIndex(focusIndex); showSelection(); } /** * Sets the receiver's selection to the given item. * The current selection is cleared before the new item is selected, * and if necessary the receiver is scrolled to make the new selection visible. * <p> * If the item is not in the receiver, then it is ignored. * </p> * * @param item the item to select * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the item is null</li> * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @since 3.2 */ public void setSelection(TableItem item) { checkWidget(); if (item == null) error(SWT.ERROR_NULL_ARGUMENT); setSelection(new TableItem[] { item }); } /** * Sets the receiver's selection to be the given array of items. * The current selection is cleared before the new items are selected, * and if necessary the receiver is scrolled to make the new selection visible. * <p> * Items that are not in the receiver are ignored. * If the receiver is single-select and multiple items are specified, * then all items are ignored. * </p> * * @param items the array of items * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the array of items is null</li> * <li>ERROR_INVALID_ARGUMENT - if one of the items has been disposed</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#deselectAll() * @see Table#select(int[]) * @see Table#setSelection(int[]) */ public void setSelection(TableItem[] items) { checkWidget(); if (items == null) error(SWT.ERROR_NULL_ARGUMENT); deselectAll(); int length = items.length; if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; int focusIndex = -1; for (int i = length - 1; i >= 0; --i) { int index = indexOf(items[i]); if (index != -1) { select(focusIndex = index); } } if (focusIndex != -1) setFocusIndex(focusIndex); showSelection(); } /** * Selects the item at the given zero-relative index in the receiver. * The current selection is first cleared, then the new item is selected, * and if necessary the receiver is scrolled to make the new selection visible. * * @param index the index of the item to select * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#deselectAll() * @see Table#select(int) */ public void setSelection(int index) { checkWidget(); deselectAll(); select(index); if (index != -1) setFocusIndex(index); showSelection(); } /** * Selects the items in the range specified by the given zero-relative * indices in the receiver. The range of indices is inclusive. * The current selection is cleared before the new items are selected, * and if necessary the receiver is scrolled to make the new selection visible. * <p> * Indices that are out of range are ignored and no items will be selected * if start is greater than end. * If the receiver is single-select and there is more than one item in the * given range, then all indices are ignored. * </p> * * @param start the start index of the items to select * @param end the end index of the items to select * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#deselectAll() * @see Table#select(int,int) */ public void setSelection(int start, int end) { checkWidget(); deselectAll(); if (end < 0 || start > end || ((style & SWT.SINGLE) != 0 && start != end)) return; int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (count == 0 || start >= count) return; start = Math.max(0, start); end = Math.min(end, count - 1); select(start, end); setFocusIndex(start); showSelection(); } /** * Sets the column used by the sort indicator for the receiver. A null * value will clear the sort indicator. The current sort column is cleared * before the new column is set. * * @param column the column used by the sort indicator or <code>null</code> * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_ARGUMENT - if the column is disposed</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @since 3.2 */ public void setSortColumn(TableColumn column) { checkWidget(); if (column != null && column.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); if (sortColumn != null && !sortColumn.isDisposed()) { sortColumn.setSortDirection(SWT.NONE); } sortColumn = column; if (sortColumn != null && sortDirection != SWT.NONE) { sortColumn.setSortDirection(sortDirection); } } /** * Sets the direction of the sort indicator for the receiver. The value * can be one of <code>UP</code>, <code>DOWN</code> or <code>NONE</code>. * * @param direction the direction of the sort indicator * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @since 3.2 */ public void setSortDirection(int direction) { checkWidget(); if ((direction & (SWT.UP | SWT.DOWN)) == 0 && direction != SWT.NONE) return; sortDirection = direction; if (sortColumn != null && !sortColumn.isDisposed()) { sortColumn.setSortDirection(direction); } } void setSubImagesVisible(boolean visible) { int dwExStyle = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); if ((dwExStyle & OS.LVS_EX_SUBITEMIMAGES) != 0 == visible) return; int bits = visible ? OS.LVS_EX_SUBITEMIMAGES : 0; OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_SUBITEMIMAGES, bits); } void setTableEmpty() { if (imageList != null) { /* * Bug in Windows. When LVM_SETIMAGELIST is used to remove the * image list by setting it to NULL, the item width and height * is not changed and space is reserved for icons despite the * fact that there are none. The fix is to set the image list * to be very small before setting it to NULL. This causes * Windows to reserve the smallest possible space when an image * list is removed. */ long hImageList = OS.ImageList_Create(1, 1, 0, 0, 0); OS.SendMessage(handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, hImageList); OS.SendMessage(handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, 0); if (headerImageList != null) { long hHeaderImageList = headerImageList.getHandle(); long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); OS.SendMessage(hwndHeader, OS.HDM_SETIMAGELIST, 0, hHeaderImageList); } OS.ImageList_Destroy(hImageList); display.releaseImageList(imageList); imageList = null; if (itemHeight != -1) setItemHeight(false); } if (!hooks(SWT.MeasureItem) && !hooks(SWT.EraseItem) && !hooks(SWT.PaintItem)) { Control control = findBackgroundControl(); if (control == null) control = this; if (control.backgroundImage == null) { setCustomDraw(false); setBackgroundTransparent(false); } } _initItems(); if (columnCount == 0) { OS.SendMessage(handle, OS.LVM_SETCOLUMNWIDTH, 0, 0); setScrollWidth(null, false); } } /** * Sets the zero-relative index of the item which is currently * at the top of the receiver. This index can change when items * are scrolled or new items are added and removed. * * @param index the index of the top item * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void setTopIndex(int index) { checkWidget(); int topIndex = (int) OS.SendMessage(handle, OS.LVM_GETTOPINDEX, 0, 0); if (index == topIndex) return; if (!painted && hooks(SWT.MeasureItem)) hitTestSelection(index, 0, 0); /* * Bug in Windows. For some reason, LVM_SCROLL refuses to * scroll a table vertically when the width and height of * the table is smaller than a certain size. The values * that seem to cause the problem are width=68 and height=6 * but there is no guarantee that these values cause the * failure on different machines or on different versions * of Windows. It may depend on the font and any number * of other factors. For example, setting the font to * anything but the default sometimes fixes the problem. * The fix is to use LVM_GETCOUNTPERPAGE to detect the * case when the number of visible items is zero and * use LVM_ENSUREVISIBLE to scroll the table to make the * index visible. */ /* * Bug in Windows. When the table header is visible and * there is not enough space to show a single table item, * LVM_GETCOUNTPERPAGE can return a negative number instead * of zero. The fix is to test for negative or zero. */ if (OS.SendMessage(handle, OS.LVM_GETCOUNTPERPAGE, 0, 0) <= 0) { /* * Bug in Windows. For some reason, LVM_ENSUREVISIBLE can * scroll one item more or one item less when there is not * enough space to show a single table item. The fix is * to detect the case and call LVM_ENSUREVISIBLE again with * the same arguments. It seems that once LVM_ENSUREVISIBLE * has scrolled into the general area, it is able to scroll * to the exact item. */ OS.SendMessage(handle, OS.LVM_ENSUREVISIBLE, index, 1); if (index != OS.SendMessage(handle, OS.LVM_GETTOPINDEX, 0, 0)) { OS.SendMessage(handle, OS.LVM_ENSUREVISIBLE, index, 1); } return; } /* Use LVM_SCROLL to scroll the table */ RECT rect = new RECT(); rect.left = OS.LVIR_BOUNDS; ignoreCustomDraw = true; OS.SendMessage(handle, OS.LVM_GETITEMRECT, 0, rect); ignoreCustomDraw = false; int dy = (index - topIndex) * (rect.bottom - rect.top); OS.SendMessage(handle, OS.LVM_SCROLL, 0, dy); } /** * Shows the column. If the column is already showing in the receiver, * this method simply returns. Otherwise, the columns are scrolled until * the column is visible. * * @param column the column to be shown * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the column is null</li> * <li>ERROR_INVALID_ARGUMENT - if the column has been disposed</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @since 3.0 */ public void showColumn(TableColumn column) { checkWidget(); if (column == null) error(SWT.ERROR_NULL_ARGUMENT); if (column.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); if (column.parent != this) return; int index = indexOf(column); if (!(0 <= index && index < columnCount)) return; /* * Feature in Windows. Calling LVM_GETSUBITEMRECT with -1 for the * row number gives the bounds of the item that would be above the * first row in the table. This is undocumented and does not work * for the first column. In this case, to get the bounds of the * first column, get the bounds of the second column and subtract * the width of the first. The left edge of the second column is * also used as the right edge of the first. */ RECT itemRect = new RECT(); itemRect.left = OS.LVIR_BOUNDS; if (index == 0) { itemRect.top = 1; ignoreCustomDraw = true; OS.SendMessage(handle, OS.LVM_GETSUBITEMRECT, -1, itemRect); ignoreCustomDraw = false; itemRect.right = itemRect.left; int width = (int) OS.SendMessage(handle, OS.LVM_GETCOLUMNWIDTH, 0, 0); itemRect.left = itemRect.right - width; } else { itemRect.top = index; ignoreCustomDraw = true; OS.SendMessage(handle, OS.LVM_GETSUBITEMRECT, -1, itemRect); ignoreCustomDraw = false; } /* * Bug in Windows. When a table that is drawing grid lines * is slowly scrolled horizontally to the left, the table does * not redraw the newly exposed vertical grid lines. The fix * is to save the old scroll position, call the window proc, * get the new scroll position and redraw the new area. */ int oldPos = 0; if (_getLinesVisible()) { SCROLLINFO info = new SCROLLINFO(); info.cbSize = SCROLLINFO.sizeof; info.fMask = OS.SIF_POS; OS.GetScrollInfo(handle, OS.SB_HORZ, info); oldPos = info.nPos; } RECT rect = new RECT(); OS.GetClientRect(handle, rect); if (itemRect.left < rect.left) { int dx = itemRect.left - rect.left; OS.SendMessage(handle, OS.LVM_SCROLL, dx, 0); } else { int width = Math.min(rect.right - rect.left, itemRect.right - itemRect.left); if (itemRect.left + width > rect.right) { int dx = itemRect.left + width - rect.right; OS.SendMessage(handle, OS.LVM_SCROLL, dx, 0); } } /* * Bug in Windows. When a table that is drawing grid lines * is slowly scrolled horizontally to the left, the table does * not redraw the newly exposed vertical grid lines. The fix * is to save the old scroll position, call the window proc, * get the new scroll position and redraw the new area. */ if (_getLinesVisible()) { SCROLLINFO info = new SCROLLINFO(); info.cbSize = SCROLLINFO.sizeof; info.fMask = OS.SIF_POS; OS.GetScrollInfo(handle, OS.SB_HORZ, info); int newPos = info.nPos; if (newPos < oldPos) { rect.right = oldPos - newPos + GRID_WIDTH; OS.InvalidateRect(handle, rect, true); } } } void showItem(int index) { if (!painted && hooks(SWT.MeasureItem)) hitTestSelection(index, 0, 0); /* * Bug in Windows. For some reason, when there is insufficient space * to show an item, LVM_ENSUREVISIBLE causes blank lines to be * inserted at the top of the widget. A call to LVM_GETTOPINDEX will * return a negative number (this is an impossible result). The fix * is to use LVM_GETCOUNTPERPAGE to detect the case when the number * of visible items is zero and use LVM_ENSUREVISIBLE with the * fPartialOK flag set to true to scroll the table. */ long counterPage = OS.SendMessage(handle, OS.LVM_GETCOUNTPERPAGE, 0, 0); if (counterPage <= 0) { /* * Bug in Windows. For some reason, LVM_ENSUREVISIBLE can * scroll one item more or one item less when there is not * enough space to show a single table item. The fix is * to detect the case and call LVM_ENSUREVISIBLE again with * the same arguments. It seems that once LVM_ENSUREVISIBLE * has scrolled into the general area, it is able to scroll * to the exact item. */ OS.SendMessage(handle, OS.LVM_ENSUREVISIBLE, index, 1); if (index != OS.SendMessage(handle, OS.LVM_GETTOPINDEX, 0, 0)) { OS.SendMessage(handle, OS.LVM_ENSUREVISIBLE, index, 1); } } else { /* * Bug in Windows Vista and onwards: For some reason, * LVM_ENSUREVISIBLE command scrolls the table to the leftmost * column even if the item is already visible, refer Bug 334234 */ long topIndex = OS.SendMessage(handle, OS.LVM_GETTOPINDEX, 0, 0); if (topIndex > index || index >= topIndex + counterPage) { OS.SendMessage(handle, OS.LVM_ENSUREVISIBLE, index, 0); } } } /** * Shows the item. If the item is already showing in the receiver, * this method simply returns. Otherwise, the items are scrolled until * the item is visible. * * @param item the item to be shown * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the item is null</li> * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> * </ul> * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#showSelection() */ public void showItem(TableItem item) { checkWidget(); if (item == null) error(SWT.ERROR_NULL_ARGUMENT); if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); int index = indexOf(item); if (index != -1) showItem(index); } /** * Shows the selection. If the selection is already showing in the receiver, * this method simply returns. Otherwise, the items are scrolled until * the selection is visible. * * @exception SWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> * * @see Table#showItem(TableItem) */ public void showSelection() { checkWidget(); int index = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_SELECTED); if (index != -1) { /* * Bug in Windows. For some reason, when a table had vertically * scrolled down, followed by clearAll or clear items call such that * vertical scroll bar is no more visible/needed, even then top of * the table is not visible. Fix is to make sure on show selection * table gets vertically scrolled back to the top, refer bug 442275 * * Make sure above fix is only applied to the active shell, see bug 450391. */ if (display.getActiveShell() == getShell() && (style & SWT.NO_SCROLL) == 0 && (verticalBar == null || !verticalBar.isVisible())) { showItem(0); } else { showItem(index); } } } /*public*/ void sort() { checkWidget(); // if ((style & SWT.VIRTUAL) != 0) return; // int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); // if (itemCount == 0 || itemCount == 1) return; // Comparator comparator = new Comparator () { // int index = sortColumn == null ? 0 : indexOf (sortColumn); // public int compare (Object object1, Object object2) { // TableItem item1 = (TableItem) object1, item2 = (TableItem) object2; // if (sortDirection == SWT.UP || sortDirection == SWT.NONE) { // return item1.getText (index).compareTo (item2.getText (index)); // } else { // return item2.getText (index).compareTo (item1.getText (index)); // } // } // }; // Arrays.sort (items, 0, itemCount, comparator); // redraw (); } @Override void subclass() { super.subclass(); if (HeaderProc != 0) { OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, display.windowProc); } } RECT toolTipInset(RECT rect) { RECT insetRect = new RECT(); OS.SetRect(insetRect, rect.left - 1, rect.top - 1, rect.right + 1, rect.bottom + 1); return insetRect; } RECT toolTipRect(RECT rect) { RECT toolRect = new RECT(); OS.SetRect(toolRect, rect.left - 1, rect.top - 1, rect.right + 1, rect.bottom + 1); return toolRect; } @Override String toolTipText(NMTTDISPINFO hdr) { long hwndToolTip = OS.SendMessage(handle, OS.LVM_GETTOOLTIPS, 0, 0); if (hwndToolTip == hdr.hwndFrom && toolTipText != null) return ""; //$NON-NLS-1$ if (headerToolTipHandle == hdr.hwndFrom) { for (int i = 0; i < columnCount; i++) { TableColumn column = columns[i]; if (column.id == hdr.idFrom) return column.toolTipText; } } return super.toolTipText(hdr); } @Override void unsubclass() { super.unsubclass(); if (HeaderProc != 0) { OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, HeaderProc); } } @Override void update(boolean all) { // checkWidget (); /* * When there are many columns in a table, scrolling performance * can be improved by temporarily unsubclassing the window proc * so that internal messages are dispatched directly to the table. * If the application expects to see a paint event or has a child * whose font, foreground or background color might be needed, * the window proc cannot be unsubclassed. * * NOTE: The header tooltip can subclass the header proc so the * current proc must be restored or header tooltips stop working. */ long oldHeaderProc = 0, oldTableProc = 0; boolean fixSubclass = isOptimizedRedraw(); if (fixSubclass) { oldTableProc = OS.SetWindowLongPtr(handle, OS.GWLP_WNDPROC, TableProc); oldHeaderProc = OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, HeaderProc); } super.update(all); if (fixSubclass) { OS.SetWindowLongPtr(handle, OS.GWLP_WNDPROC, oldTableProc); OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, oldHeaderProc); } } void updateHeaderToolTips() { if (headerToolTipHandle == 0) return; long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); RECT rect = new RECT(); TOOLINFO lpti = new TOOLINFO(); lpti.cbSize = TOOLINFO.sizeof; lpti.uFlags = OS.TTF_SUBCLASS; lpti.hwnd = hwndHeader; lpti.lpszText = OS.LPSTR_TEXTCALLBACK; for (int i = 0; i < columnCount; i++) { TableColumn column = columns[i]; if (OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, i, rect) != 0) { lpti.uId = column.id = display.nextToolTipId++; lpti.left = rect.left; lpti.top = rect.top; lpti.right = rect.right; lpti.bottom = rect.bottom; OS.SendMessage(headerToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); } } } @Override void updateMenuLocation(Event event) { Rectangle clientArea = getClientAreaInPixels(); int x = clientArea.x, y = clientArea.y; int focusIndex = getFocusIndex(); if (focusIndex != -1) { TableItem focusItem = getItem(focusIndex); Rectangle bounds = focusItem.getBoundsInPixels(0); if (focusItem.text != null && focusItem.text.length() != 0) { bounds = focusItem.getBoundsInPixels(); } x = Math.max(x, bounds.x + bounds.width / 2); x = Math.min(x, clientArea.x + clientArea.width); y = Math.max(y, bounds.y + bounds.height); y = Math.min(y, clientArea.y + clientArea.height); } Point pt = toDisplayInPixels(x, y); event.setLocationInPixels(pt.x, pt.y); } void updateMoveable() { int index = 0; while (index < columnCount) { if (columns[index].moveable) break; index++; } int newBits = index < columnCount ? OS.LVS_EX_HEADERDRAGDROP : 0; OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_HEADERDRAGDROP, newBits); } @Override void updateOrientation() { super.updateOrientation(); long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); if (hwndHeader != 0) { int bits = OS.GetWindowLong(hwndHeader, OS.GWL_EXSTYLE); if ((style & SWT.RIGHT_TO_LEFT) != 0) { bits |= OS.WS_EX_LAYOUTRTL; } else { bits &= ~OS.WS_EX_LAYOUTRTL; } bits &= ~OS.WS_EX_RTLREADING; OS.SetWindowLong(hwndHeader, OS.GWL_EXSTYLE, bits); OS.InvalidateRect(hwndHeader, null, true); RECT rect = new RECT(); OS.GetWindowRect(handle, rect); int width = rect.right - rect.left, height = rect.bottom - rect.top; OS.SetWindowPos(handle, 0, 0, 0, width - 1, height - 1, OS.SWP_NOMOVE | OS.SWP_NOZORDER); OS.SetWindowPos(handle, 0, 0, 0, width, height, OS.SWP_NOMOVE | OS.SWP_NOZORDER); } if ((style & SWT.CHECK) != 0) fixCheckboxImageListColor(false); if (imageList != null) { Point size = imageList.getImageSize(); display.releaseImageList(imageList); imageList = display.getImageList(style & SWT.RIGHT_TO_LEFT, size.x, size.y); int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); for (int i = 0; i < count; i++) { TableItem item = _getItem(i, false); if (item != null) { Image image = item.image; if (image != null) { int index = imageList.indexOf(image); if (index == -1) imageList.add(image); } } } long hImageList = imageList.getHandle(); OS.SendMessage(handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, hImageList); } if (hwndHeader != 0) { if (headerImageList != null) { Point size = headerImageList.getImageSize(); display.releaseImageList(headerImageList); headerImageList = display.getImageList(style & SWT.RIGHT_TO_LEFT, size.x, size.y); if (columns != null) { for (int i = 0; i < columns.length; i++) { TableColumn column = columns[i]; if (column != null) { Image image = column.image; if (image != null) { LVCOLUMN lvColumn = new LVCOLUMN(); lvColumn.mask = OS.LVCF_FMT; OS.SendMessage(hwndHeader, OS.LVM_GETCOLUMN, i, lvColumn); if ((lvColumn.fmt & OS.LVCFMT_IMAGE) != 0) { int index = headerImageList.indexOf(image); if (index == -1) headerImageList.add(image); lvColumn.iImage = index; lvColumn.mask = OS.LVCF_IMAGE; OS.SendMessage(hwndHeader, OS.LVM_SETCOLUMN, i, lvColumn); } } } } } long hHeaderImageList = headerImageList.getHandle(); OS.SendMessage(hwndHeader, OS.HDM_SETIMAGELIST, 0, hHeaderImageList); } } } @Override boolean updateTextDirection(int textDirection) { if (super.updateTextDirection(textDirection)) { if (textDirection == AUTO_TEXT_DIRECTION || (state & HAS_AUTO_DIRECTION) != 0) { for (int i = 0, n = items.length; i < n; i++) { if (items[i] != null) { items[i].updateTextDirection(textDirection == AUTO_TEXT_DIRECTION ? AUTO_TEXT_DIRECTION : style & SWT.FLIP_TEXT_DIRECTION); } } } OS.InvalidateRect(handle, null, true); return true; } return false; } @Override int widgetStyle() { int bits = super.widgetStyle() | OS.LVS_SHAREIMAGELISTS; if ((style & SWT.HIDE_SELECTION) == 0) bits |= OS.LVS_SHOWSELALWAYS; if ((style & SWT.SINGLE) != 0) bits |= OS.LVS_SINGLESEL; /* * This code is intentionally commented. In the future, * the FLAT bit may be used to make the header flat and * unresponsive to mouse clicks. */ // if ((style & SWT.FLAT) != 0) bits |= OS.LVS_NOSORTHEADER; bits |= OS.LVS_REPORT | OS.LVS_NOCOLUMNHEADER; if ((style & SWT.VIRTUAL) != 0) bits |= OS.LVS_OWNERDATA; return bits; } @Override TCHAR windowClass() { return TableClass; } @Override long windowProc() { return TableProc; } @Override long windowProc(long hwnd, int msg, long wParam, long lParam) { if (handle == 0) return 0; if (hwnd != handle) { switch (msg) { case OS.WM_CONTEXTMENU: { LRESULT result = wmContextMenu(hwnd, wParam, lParam); if (result != null) return result.value; break; } case OS.WM_MOUSELEAVE: { /* * Bug in Windows. On XP, when a tooltip is hidden * due to a time out or mouse press, the tooltip * remains active although no longer visible and * won't show again until another tooltip becomes * active. The fix is to reset the tooltip bounds. */ updateHeaderToolTips(); updateHeaderToolTips(); break; } case OS.WM_NOTIFY: { NMHDR hdr = new NMHDR(); OS.MoveMemory(hdr, lParam, NMHDR.sizeof); switch (hdr.code) { case OS.TTN_SHOW: case OS.TTN_POP: case OS.TTN_GETDISPINFO: return OS.SendMessage(handle, msg, wParam, lParam); } break; } case OS.WM_SETCURSOR: { if (wParam == hwnd) { int hitTest = (short) OS.LOWORD(lParam); if (hitTest == OS.HTCLIENT) { HDHITTESTINFO pinfo = new HDHITTESTINFO(); int pos = OS.GetMessagePos(); POINT pt = new POINT(); OS.POINTSTOPOINT(pt, pos); OS.ScreenToClient(hwnd, pt); pinfo.x = pt.x; pinfo.y = pt.y; long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); int index = (int) OS.SendMessage(hwndHeader, OS.HDM_HITTEST, 0, pinfo); if (0 <= index && index < columnCount && !columns[index].resizable) { if ((pinfo.flags & (OS.HHT_ONDIVIDER | OS.HHT_ONDIVOPEN)) != 0) { OS.SetCursor(OS.LoadCursor(0, OS.IDC_ARROW)); return 1; } } } } break; } } return callWindowProc(hwnd, msg, wParam, lParam); } if (msg == Display.DI_GETDRAGIMAGE) { /* * Bug in Windows. On Vista, for some reason, DI_GETDRAGIMAGE * returns an image that does not contain strings. * * Bug in Windows. For custom draw control the window origin the * in HDC is wrong. * * The fix for both cases is to create the image using PrintWindow(). */ int topIndex = (int) OS.SendMessage(handle, OS.LVM_GETTOPINDEX, 0, 0); int selection = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, topIndex - 1, OS.LVNI_SELECTED); if (selection == -1) return 0; POINT mousePos = new POINT(); OS.POINTSTOPOINT(mousePos, OS.GetMessagePos()); OS.MapWindowPoints(0, handle, mousePos, 1); RECT clientRect = new RECT(); OS.GetClientRect(handle, clientRect); TableItem item = _getItem(selection); RECT rect = item.getBounds(selection, 0, true, true, true); if ((style & SWT.FULL_SELECTION) != 0) { int width = DRAG_IMAGE_SIZE; rect.left = Math.max(clientRect.left, mousePos.x - width / 2); if (clientRect.right > rect.left + width) { rect.right = rect.left + width; } else { rect.right = clientRect.right; rect.left = Math.max(clientRect.left, rect.right - width); } } long hRgn = OS.CreateRectRgn(rect.left, rect.top, rect.right, rect.bottom); while ((selection = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, selection, OS.LVNI_SELECTED)) != -1) { if (rect.bottom - rect.top > DRAG_IMAGE_SIZE) break; if (rect.bottom > clientRect.bottom) break; RECT itemRect = item.getBounds(selection, 0, true, true, true); long rectRgn = OS.CreateRectRgn(rect.left, itemRect.top, rect.right, itemRect.bottom); OS.CombineRgn(hRgn, hRgn, rectRgn, OS.RGN_OR); OS.DeleteObject(rectRgn); rect.bottom = itemRect.bottom; } OS.GetRgnBox(hRgn, rect); /* Create resources */ long hdc = OS.GetDC(handle); long memHdc = OS.CreateCompatibleDC(hdc); BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER(); bmiHeader.biSize = BITMAPINFOHEADER.sizeof; bmiHeader.biWidth = rect.right - rect.left; bmiHeader.biHeight = -(rect.bottom - rect.top); bmiHeader.biPlanes = 1; bmiHeader.biBitCount = 32; bmiHeader.biCompression = OS.BI_RGB; byte[] bmi = new byte[BITMAPINFOHEADER.sizeof]; OS.MoveMemory(bmi, bmiHeader, BITMAPINFOHEADER.sizeof); long[] pBits = new long[1]; long memDib = OS.CreateDIBSection(0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); if (memDib == 0) error(SWT.ERROR_NO_HANDLES); long oldMemBitmap = OS.SelectObject(memHdc, memDib); int colorKey = 0x0000FD; POINT pt = new POINT(); OS.SetWindowOrgEx(memHdc, rect.left, rect.top, pt); OS.FillRect(memHdc, rect, findBrush(colorKey, OS.BS_SOLID)); OS.OffsetRgn(hRgn, -rect.left, -rect.top); OS.SelectClipRgn(memHdc, hRgn); OS.PrintWindow(handle, memHdc, 0); OS.SetWindowOrgEx(memHdc, pt.x, pt.y, null); OS.SelectObject(memHdc, oldMemBitmap); OS.DeleteDC(memHdc); OS.ReleaseDC(0, hdc); OS.DeleteObject(hRgn); SHDRAGIMAGE shdi = new SHDRAGIMAGE(); shdi.hbmpDragImage = memDib; shdi.crColorKey = colorKey; shdi.sizeDragImage.cx = bmiHeader.biWidth; shdi.sizeDragImage.cy = -bmiHeader.biHeight; shdi.ptOffset.x = mousePos.x - rect.left; shdi.ptOffset.y = mousePos.y - rect.top; if ((style & SWT.MIRRORED) != 0) { shdi.ptOffset.x = shdi.sizeDragImage.cx - shdi.ptOffset.x; } OS.MoveMemory(lParam, shdi, SHDRAGIMAGE.sizeof); return 1; } return super.windowProc(hwnd, msg, wParam, lParam); } @Override LRESULT WM_CHAR(long wParam, long lParam) { LRESULT result = super.WM_CHAR(wParam, lParam); if (result != null) return result; switch ((int) wParam) { case ' ': if ((style & SWT.CHECK) != 0) { int index = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); if (index != -1) { TableItem item = _getItem(index); item.setChecked(!item.getChecked(), true); OS.NotifyWinEvent(OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, index + 1); } } /* * NOTE: Call the window proc with WM_KEYDOWN rather than WM_CHAR * so that the key that was ignored during WM_KEYDOWN is processed. * This allows the application to cancel an operation that is normally * performed in WM_KEYDOWN from WM_CHAR. */ long code = callWindowProc(handle, OS.WM_KEYDOWN, wParam, lParam); return new LRESULT(code); case SWT.CR: /* * Feature in Windows. Windows sends LVN_ITEMACTIVATE from WM_KEYDOWN * instead of WM_CHAR. This means that application code that expects * to consume the key press and therefore avoid a SWT.DefaultSelection * event will fail. The fix is to ignore LVN_ITEMACTIVATE when it is * caused by WM_KEYDOWN and send SWT.DefaultSelection from WM_CHAR. */ int index = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); if (index != -1) { Event event = new Event(); event.item = _getItem(index); sendSelectionEvent(SWT.DefaultSelection, event, false); } return LRESULT.ZERO; } return result; } @Override LRESULT WM_CONTEXTMENU(long wParam, long lParam) { /* * Feature in Windows. For some reason, when the right * mouse button is pressed over an item, Windows sends * a WM_CONTEXTMENU from WM_RBUTTONDOWN, instead of from * WM_RBUTTONUP. This causes two context menus requests * to be sent. The fix is to ignore WM_CONTEXTMENU on * mouse down. * * NOTE: This only happens when dragging is disabled. * When the table is detecting drag, the WM_CONTEXTMENU * is not sent WM_RBUTTONUP. */ if (!display.runDragDrop) return LRESULT.ZERO; return super.WM_CONTEXTMENU(wParam, lParam); } @Override LRESULT WM_ERASEBKGND(long wParam, long lParam) { LRESULT result = super.WM_ERASEBKGND(wParam, lParam); if (findImageControl() != null) return LRESULT.ONE; return result; } @Override LRESULT WM_GETOBJECT(long wParam, long lParam) { /* * Ensure that there is an accessible object created for this * control because support for checked item accessibility is * temporarily implemented in the accessibility package. */ if ((style & SWT.CHECK) != 0) { if (accessible == null) accessible = new_Accessible(this); } return super.WM_GETOBJECT(wParam, lParam); } @Override LRESULT WM_KEYDOWN(long wParam, long lParam) { LRESULT result = super.WM_KEYDOWN(wParam, lParam); if (result != null) return result; switch ((int) wParam) { case OS.VK_SPACE: /* * Ensure that the window proc does not process VK_SPACE * so that it can be handled in WM_CHAR. This allows the * application to cancel an operation that is normally * performed in WM_KEYDOWN from WM_CHAR. */ return LRESULT.ZERO; case OS.VK_ADD: if (OS.GetKeyState(OS.VK_CONTROL) < 0) { int index = 0; while (index < columnCount) { if (!columns[index].getResizable()) break; index++; } if (index != columnCount || hooks(SWT.MeasureItem)) { TableColumn[] newColumns = new TableColumn[columnCount]; System.arraycopy(columns, 0, newColumns, 0, columnCount); for (int i = 0; i < newColumns.length; i++) { TableColumn column = newColumns[i]; if (!column.isDisposed() && column.getResizable()) { column.pack(); } } return LRESULT.ZERO; } } break; case OS.VK_PRIOR: case OS.VK_NEXT: case OS.VK_HOME: case OS.VK_END: /* * When there are many columns in a table, scrolling performance * can be improved by temporarily unsubclassing the window proc * so that internal messages are dispatched directly to the table. * If the application expects to see a paint event, the window * proc cannot be unsubclassed or the event will not be seen. * * NOTE: The header tooltip can subclass the header proc so the * current proc must be restored or header tooltips stop working. */ long oldHeaderProc = 0, oldTableProc = 0; long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); boolean fixSubclass = isOptimizedRedraw(); if (fixSubclass) { oldTableProc = OS.SetWindowLongPtr(handle, OS.GWLP_WNDPROC, TableProc); oldHeaderProc = OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, HeaderProc); } long code = callWindowProc(handle, OS.WM_KEYDOWN, wParam, lParam); result = code == 0 ? LRESULT.ZERO : new LRESULT(code); if (fixSubclass) { OS.SetWindowLongPtr(handle, OS.GWLP_WNDPROC, oldTableProc); OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, oldHeaderProc); } //FALL THROUGH case OS.VK_UP: case OS.VK_DOWN: OS.SendMessage(handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); break; } return result; } @Override LRESULT WM_KILLFOCUS(long wParam, long lParam) { LRESULT result = super.WM_KILLFOCUS(wParam, lParam); /* * Bug in Windows. When focus is lost, Windows does not * redraw the selection properly, leaving the image and * check box appearing selected. The fix is to redraw * the table. */ if (imageList != null || (style & SWT.CHECK) != 0) { OS.InvalidateRect(handle, null, false); } return result; } @Override LRESULT WM_LBUTTONDBLCLK(long wParam, long lParam) { /* * Feature in Windows. When the user selects outside of * a table item, Windows deselects all the items, even * when the table is multi-select. While not strictly * wrong, this is unexpected. The fix is to detect the * case and avoid calling the window proc. */ LVHITTESTINFO pinfo = new LVHITTESTINFO(); pinfo.x = OS.GET_X_LPARAM(lParam); pinfo.y = OS.GET_Y_LPARAM(lParam); int index = (int) OS.SendMessage(handle, OS.LVM_HITTEST, 0, pinfo); Display display = this.display; display.captureChanged = false; sendMouseEvent(SWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); if (!sendMouseEvent(SWT.MouseDoubleClick, 1, handle, OS.WM_LBUTTONDBLCLK, wParam, lParam)) { if (!display.captureChanged && !isDisposed()) { if (OS.GetCapture() != handle) OS.SetCapture(handle); } return LRESULT.ZERO; } if (pinfo.iItem != -1) callWindowProc(handle, OS.WM_LBUTTONDBLCLK, wParam, lParam); if (!display.captureChanged && !isDisposed()) { if (OS.GetCapture() != handle) OS.SetCapture(handle); } /* Look for check/uncheck */ if ((style & SWT.CHECK) != 0) { /* * Note that when the table has LVS_EX_FULLROWSELECT and the * user clicks anywhere on a row except on the check box, all * of the bits are set. The hit test flags are LVHT_ONITEM. * This means that a bit test for LVHT_ONITEMSTATEICON is not * the correct way to determine that the user has selected * the check box, equality is needed. */ if (index != -1 && pinfo.flags == OS.LVHT_ONITEMSTATEICON) { TableItem item = _getItem(index); if (item != null && !item.isDisposed()) { item.setChecked(!item.getChecked(), true); OS.NotifyWinEvent(OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, index + 1); } } } return LRESULT.ZERO; } @Override LRESULT WM_LBUTTONDOWN(long wParam, long lParam) { /* * Feature in Windows. For some reason, capturing * the mouse after processing the mouse event for the * widget interferes with the normal mouse processing * for the widget. The fix is to avoid the automatic * mouse capture. */ LRESULT result = sendMouseDownEvent(SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam); if (result == LRESULT.ZERO) return result; /* Look for check/uncheck */ if ((style & SWT.CHECK) != 0) { LVHITTESTINFO pinfo = new LVHITTESTINFO(); pinfo.x = OS.GET_X_LPARAM(lParam); pinfo.y = OS.GET_Y_LPARAM(lParam); /* * Note that when the table has LVS_EX_FULLROWSELECT and the * user clicks anywhere on a row except on the check box, all * of the bits are set. The hit test flags are LVHT_ONITEM. * This means that a bit test for LVHT_ONITEMSTATEICON is not * the correct way to determine that the user has selected * the check box, equality is needed. */ int index = (int) OS.SendMessage(handle, OS.LVM_HITTEST, 0, pinfo); if (index != -1 && pinfo.flags == OS.LVHT_ONITEMSTATEICON) { TableItem item = _getItem(index); if (item != null && !item.isDisposed()) { item.setChecked(!item.getChecked(), true); OS.NotifyWinEvent(OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, index + 1); } } } return result; } @Override LRESULT WM_MOUSEHOVER(long wParam, long lParam) { /* * Feature in Windows. Despite the fact that hot * tracking is not enabled, the hot tracking code * in WM_MOUSEHOVER is executed causing the item * under the cursor to be selected. The fix is to * avoid calling the window proc. */ LRESULT result = super.WM_MOUSEHOVER(wParam, lParam); int bits = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); int mask = OS.LVS_EX_ONECLICKACTIVATE | OS.LVS_EX_TRACKSELECT | OS.LVS_EX_TWOCLICKACTIVATE; if ((bits & mask) != 0) return result; return LRESULT.ZERO; } @Override LRESULT WM_PAINT(long wParam, long lParam) { if ((state & DISPOSE_SENT) != 0) return LRESULT.ZERO; _checkShrink(); if (fixScrollWidth) setScrollWidth(null, true); return super.WM_PAINT(wParam, lParam); } @Override LRESULT WM_RBUTTONDBLCLK(long wParam, long lParam) { /* * Feature in Windows. When the user selects outside of * a table item, Windows deselects all the items, even * when the table is multi-select. While not strictly * wrong, this is unexpected. The fix is to detect the * case and avoid calling the window proc. */ LVHITTESTINFO pinfo = new LVHITTESTINFO(); pinfo.x = OS.GET_X_LPARAM(lParam); pinfo.y = OS.GET_Y_LPARAM(lParam); OS.SendMessage(handle, OS.LVM_HITTEST, 0, pinfo); Display display = this.display; display.captureChanged = false; sendMouseEvent(SWT.MouseDown, 3, handle, OS.WM_RBUTTONDOWN, wParam, lParam); if (sendMouseEvent(SWT.MouseDoubleClick, 3, handle, OS.WM_RBUTTONDBLCLK, wParam, lParam)) { if (pinfo.iItem != -1) callWindowProc(handle, OS.WM_RBUTTONDBLCLK, wParam, lParam); } if (!display.captureChanged && !isDisposed()) { if (OS.GetCapture() != handle) OS.SetCapture(handle); } return LRESULT.ZERO; } @Override LRESULT WM_RBUTTONDOWN(long wParam, long lParam) { /* * Feature in Windows. For some reason, capturing * the mouse after processing the mouse event for the * widget interferes with the normal mouse processing * for the widget. The fix is to avoid the automatic * mouse capture. */ return sendMouseDownEvent(SWT.MouseDown, 3, OS.WM_RBUTTONDOWN, wParam, lParam); } @Override LRESULT WM_SETFOCUS(long wParam, long lParam) { LRESULT result = super.WM_SETFOCUS(wParam, lParam); /* * Bug in Windows. When focus is gained after the * selection has been changed using LVM_SETITEMSTATE, * Windows redraws the selected text but does not * redraw the image or the check box, leaving them * appearing unselected. The fix is to redraw * the table. */ if (imageList != null || (style & SWT.CHECK) != 0) { OS.InvalidateRect(handle, null, false); } /* * Bug in Windows. For some reason, the table does * not set the default focus rectangle to be the first * item in the table when it gets focus and there is * no selected item. The fix to make the first item * be the focus item. */ int count = (int) OS.SendMessage(handle, OS.LVM_GETITEMCOUNT, 0, 0); if (count == 0) return result; int index = (int) OS.SendMessage(handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); if (index == -1) { LVITEM lvItem = new LVITEM(); lvItem.state = OS.LVIS_FOCUSED; lvItem.stateMask = OS.LVIS_FOCUSED; ignoreSelect = true; OS.SendMessage(handle, OS.LVM_SETITEMSTATE, 0, lvItem); ignoreSelect = false; } return result; } @Override LRESULT WM_SETFONT(long wParam, long lParam) { LRESULT result = super.WM_SETFONT(wParam, lParam); if (result != null) return result; /* * Bug in Windows. When a header has a sort indicator * triangle, Windows resizes the indicator based on the * size of the n-1th font. The fix is to always make * the n-1th font be the default. This makes the sort * indicator always be the default size. * * NOTE: The table window proc sets the actual font in * the header so that all that is necessary here is to * set the default first. */ OS.SendMessage(hwndHeader, OS.WM_SETFONT, 0, lParam); if (headerToolTipHandle != 0) { OS.SendMessage(headerToolTipHandle, OS.WM_SETFONT, wParam, lParam); } return result; } @Override LRESULT WM_SETREDRAW(long wParam, long lParam) { LRESULT result = super.WM_SETREDRAW(wParam, lParam); if (result != null) return result; /* * Feature in Windows. When LVM_SETBKCOLOR is used with CLR_NONE * to make the background of the table transparent, drawing becomes * slow. The fix is to temporarily clear CLR_NONE when redraw is * turned off. */ if (wParam == 1) { if ((int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) != OS.CLR_NONE) { if (hooks(SWT.MeasureItem) || hooks(SWT.EraseItem) || hooks(SWT.PaintItem)) { OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, OS.CLR_NONE); } } } /* * Bug in Windows. When WM_SETREDRAW is used to turn off * redraw for a list, table or tree, the background of the * control is drawn. The fix is to call DefWindowProc(), * which stops all graphics output to the control. */ OS.DefWindowProc(handle, OS.WM_SETREDRAW, wParam, lParam); long code = callWindowProc(handle, OS.WM_SETREDRAW, wParam, lParam); if (wParam == 0) { if ((int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0) == OS.CLR_NONE) { OS.SendMessage(handle, OS.LVM_SETBKCOLOR, 0, 0xFFFFFF); } } return code == 0 ? LRESULT.ZERO : new LRESULT(code); } @Override LRESULT WM_SIZE(long wParam, long lParam) { if (ignoreResize) return null; if (hooks(SWT.EraseItem) || hooks(SWT.PaintItem)) { OS.InvalidateRect(handle, null, true); } if (resizeCount != 0) { wasResized = true; return null; } return super.WM_SIZE(wParam, lParam); } @Override LRESULT WM_SYSCOLORCHANGE(long wParam, long lParam) { LRESULT result = super.WM_SYSCOLORCHANGE(wParam, lParam); if (result != null) return result; if (findBackgroundControl() == null) { setBackgroundPixel(defaultBackground()); } else { int oldPixel = (int) OS.SendMessage(handle, OS.LVM_GETBKCOLOR, 0, 0); if (oldPixel != OS.CLR_NONE) { if (findImageControl() == null) { if ((style & SWT.CHECK) != 0) fixCheckboxImageListColor(true); } } } return result; } @Override LRESULT WM_HSCROLL(long wParam, long lParam) { /* * Bug in Windows. When a table that is drawing grid lines * is slowly scrolled horizontally to the left, the table does * not redraw the newly exposed vertical grid lines. The fix * is to save the old scroll position, call the window proc, * get the new scroll position and redraw the new area. */ int oldPos = 0; if (_getLinesVisible()) { SCROLLINFO info = new SCROLLINFO(); info.cbSize = SCROLLINFO.sizeof; info.fMask = OS.SIF_POS; OS.GetScrollInfo(handle, OS.SB_HORZ, info); oldPos = info.nPos; } /* * Feature in Windows. When there are many columns in a table, * scrolling performance can be improved by unsubclassing the * window proc so that internal messages are dispatched directly * to the table. If the application expects to see a paint event * or has a child whose font, foreground or background color might * be needed, the window proc cannot be unsubclassed * * NOTE: The header tooltip can subclass the header proc so the * current proc must be restored or header tooltips stop working. */ long oldHeaderProc = 0, oldTableProc = 0; long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); boolean fixSubclass = isOptimizedRedraw(); if (fixSubclass) { oldTableProc = OS.SetWindowLongPtr(handle, OS.GWLP_WNDPROC, TableProc); oldHeaderProc = OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, HeaderProc); } /* * Feature in Windows. For some reason, when the table window * proc processes WM_HSCROLL or WM_VSCROLL when there are many * columns in the table, scrolling is slow and the table does * not keep up with the position of the scroll bar. The fix * is to turn off redraw, scroll, turn redraw back on and redraw * the entire table. Strangly, redrawing the entire table is * faster. */ boolean fixScroll = false; if (OS.LOWORD(wParam) != OS.SB_ENDSCROLL) { if (columnCount > H_SCROLL_LIMIT) { int rowCount = (int) OS.SendMessage(handle, OS.LVM_GETCOUNTPERPAGE, 0, 0); if (rowCount > V_SCROLL_LIMIT) fixScroll = getDrawing() && OS.IsWindowVisible(handle); } } if (fixScroll) OS.DefWindowProc(handle, OS.WM_SETREDRAW, 0, 0); LRESULT result = super.WM_HSCROLL(wParam, lParam); if (fixScroll) { OS.DefWindowProc(handle, OS.WM_SETREDRAW, 1, 0); int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; OS.RedrawWindow(handle, null, 0, flags); /* * Feature in Windows. On Vista only, it is faster to * compute and answer the data for the visible columns * of a table when scrolling, rather than just return * the data for each column when asked. */ if (OS.WIN32_VERSION >= OS.VERSION(6, 0)) { RECT headerRect = new RECT(), rect = new RECT(); OS.GetClientRect(handle, rect); boolean[] visible = new boolean[columnCount]; for (int i = 0; i < columnCount; i++) { visible[i] = true; headerRect.top = i; headerRect.left = OS.LVIR_BOUNDS; if (OS.SendMessage(handle, OS.LVM_GETSUBITEMRECT, 0, headerRect) != 0) { headerRect.top = rect.top; headerRect.bottom = rect.bottom; visible[i] = OS.IntersectRect(headerRect, rect, headerRect); } } try { columnVisible = visible; OS.UpdateWindow(handle); } finally { columnVisible = null; } } } if (fixSubclass) { OS.SetWindowLongPtr(handle, OS.GWLP_WNDPROC, oldTableProc); OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, oldHeaderProc); } /* * Bug in Windows. When a table that is drawing grid lines * is slowly scrolled horizontally to the left, the table does * not redraw the newly exposed vertical grid lines. The fix * is to save the old scroll position, call the window proc, * get the new scroll position and redraw the new area. */ if (_getLinesVisible()) { SCROLLINFO info = new SCROLLINFO(); info.cbSize = SCROLLINFO.sizeof; info.fMask = OS.SIF_POS; OS.GetScrollInfo(handle, OS.SB_HORZ, info); int newPos = info.nPos; if (newPos < oldPos) { RECT rect = new RECT(); OS.GetClientRect(handle, rect); rect.right = oldPos - newPos + GRID_WIDTH; OS.InvalidateRect(handle, rect, true); } } return result; } @Override LRESULT WM_VSCROLL(long wParam, long lParam) { /* * When there are many columns in a table, scrolling performance * can be improved by temporarily unsubclassing the window proc * so that internal messages are dispatched directly to the table. * If the application expects to see a paint event or has a child * whose font, foreground or background color might be needed, * the window proc cannot be unsubclassed. * * NOTE: The header tooltip can subclass the header proc so the * current proc must be restored or header tooltips stop working. */ long oldHeaderProc = 0, oldTableProc = 0; long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); boolean fixSubclass = isOptimizedRedraw(); if (fixSubclass) { oldTableProc = OS.SetWindowLongPtr(handle, OS.GWLP_WNDPROC, TableProc); oldHeaderProc = OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, HeaderProc); } /* * Feature in Windows. For some reason, when the table window * proc processes WM_HSCROLL or WM_VSCROLL when there are many * columns in the table, scrolling is slow and the table does * not keep up with the position of the scroll bar. The fix * is to turn off redraw, scroll, turn redraw back on and redraw * the entire table. Strangly, redrawing the entire table is * faster. */ boolean fixScroll = false; if (OS.LOWORD(wParam) != OS.SB_ENDSCROLL) { if (columnCount > H_SCROLL_LIMIT) { int rowCount = (int) OS.SendMessage(handle, OS.LVM_GETCOUNTPERPAGE, 0, 0); if (rowCount > V_SCROLL_LIMIT) fixScroll = getDrawing() && OS.IsWindowVisible(handle); } } if (fixScroll) OS.DefWindowProc(handle, OS.WM_SETREDRAW, 0, 0); LRESULT result = super.WM_VSCROLL(wParam, lParam); if (fixScroll) { OS.DefWindowProc(handle, OS.WM_SETREDRAW, 1, 0); int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; OS.RedrawWindow(handle, null, 0, flags); /* * Feature in Windows. On Vista only, it is faster to * compute and answer the data for the visible columns * of a table when scrolling, rather than just return * the data for each column when asked. */ if (OS.WIN32_VERSION >= OS.VERSION(6, 0)) { RECT headerRect = new RECT(), rect = new RECT(); OS.GetClientRect(handle, rect); boolean[] visible = new boolean[columnCount]; for (int i = 0; i < columnCount; i++) { visible[i] = true; headerRect.top = i; headerRect.left = OS.LVIR_BOUNDS; if (OS.SendMessage(handle, OS.LVM_GETSUBITEMRECT, 0, headerRect) != 0) { headerRect.top = rect.top; headerRect.bottom = rect.bottom; visible[i] = OS.IntersectRect(headerRect, rect, headerRect); } } try { columnVisible = visible; OS.UpdateWindow(handle); } finally { columnVisible = null; } } } if (fixSubclass) { OS.SetWindowLongPtr(handle, OS.GWLP_WNDPROC, oldTableProc); OS.SetWindowLongPtr(hwndHeader, OS.GWLP_WNDPROC, oldHeaderProc); } /* * Bug in Windows. When a table is drawing grid lines and the * user scrolls vertically up or down by a line or a page, the * table does not redraw the grid lines for newly exposed items. * The fix is to invalidate the items. */ if (_getLinesVisible()) { int code = OS.LOWORD(wParam); switch (code) { case OS.SB_ENDSCROLL: case OS.SB_THUMBPOSITION: case OS.SB_THUMBTRACK: case OS.SB_TOP: case OS.SB_BOTTOM: break; case OS.SB_LINEDOWN: case OS.SB_LINEUP: RECT rect = new RECT(); OS.GetWindowRect(hwndHeader, rect); int headerHeight = rect.bottom - rect.top; RECT clientRect = new RECT(); OS.GetClientRect(handle, clientRect); clientRect.top += headerHeight; long empty = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); long oneItem = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); int itemHeight = OS.HIWORD(oneItem) - OS.HIWORD(empty); if (code == OS.SB_LINEDOWN) { clientRect.top = clientRect.bottom - itemHeight - GRID_WIDTH; } else { clientRect.bottom = clientRect.top + itemHeight + GRID_WIDTH; } OS.InvalidateRect(handle, clientRect, true); break; case OS.SB_PAGEDOWN: case OS.SB_PAGEUP: OS.InvalidateRect(handle, null, true); break; } } return result; } @Override LRESULT wmMeasureChild(long wParam, long lParam) { MEASUREITEMSTRUCT struct = new MEASUREITEMSTRUCT(); OS.MoveMemory(struct, lParam, MEASUREITEMSTRUCT.sizeof); if (itemHeight == -1) { long empty = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); long oneItem = OS.SendMessage(handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); struct.itemHeight = OS.HIWORD(oneItem) - OS.HIWORD(empty); } else { struct.itemHeight = itemHeight; } OS.MoveMemory(lParam, struct, MEASUREITEMSTRUCT.sizeof); return null; } @Override LRESULT wmNotify(NMHDR hdr, long wParam, long lParam) { long hwndToolTip = OS.SendMessage(handle, OS.LVM_GETTOOLTIPS, 0, 0); if (hdr.hwndFrom == hwndToolTip) { LRESULT result = wmNotifyToolTip(hdr, wParam, lParam); if (result != null) return result; } if (hdr.hwndFrom == hwndHeader) { LRESULT result = wmNotifyHeader(hdr, wParam, lParam); if (result != null) return result; } return super.wmNotify(hdr, wParam, lParam); } @Override LRESULT wmNotifyChild(NMHDR hdr, long wParam, long lParam) { switch (hdr.code) { case OS.LVN_ODFINDITEM: { if ((style & SWT.VIRTUAL) != 0) return new LRESULT(-1); break; } case OS.LVN_ODSTATECHANGED: { if ((style & SWT.VIRTUAL) != 0) { if (!ignoreSelect) { NMLVODSTATECHANGE lpStateChange = new NMLVODSTATECHANGE(); OS.MoveMemory(lpStateChange, lParam, NMLVODSTATECHANGE.sizeof); boolean oldSelected = (lpStateChange.uOldState & OS.LVIS_SELECTED) != 0; boolean newSelected = (lpStateChange.uNewState & OS.LVIS_SELECTED) != 0; if (oldSelected != newSelected) wasSelected = true; } } break; } case OS.LVN_GETDISPINFO: { // if (drawCount != 0 || !OS.IsWindowVisible (handle)) break; NMLVDISPINFO plvfi = new NMLVDISPINFO(); OS.MoveMemory(plvfi, lParam, NMLVDISPINFO.sizeof); if (columnVisible != null && !columnVisible[plvfi.iSubItem]) { break; } /* * Feature in Windows. When a new table item is inserted * using LVM_INSERTITEM in a table that is transparent * (ie. LVM_SETBKCOLOR has been called with CLR_NONE), * TVM_INSERTITEM calls LVN_GETDISPINFO before the item * has been added to the array. The fix is to check for * null. * * NOTE: Force the item to be created if it does not exist. */ TableItem item = _getItem(plvfi.iItem); if (item == null) break; /* * Feature in Windows. On Vista, the list view expects the item array * to be up to date when a LVM_DELETEITEM message is being processed. * * Also, when the table is virtual, do not allow the application to * provide data for a new item that becomes visible until the item has * been removed from the items array. Because arbitrary application * code can run during the callback, the items array might be accessed * in an inconsistent state. * * On both cases, Rather than answering the data right away, queue a * redraw for later. */ if (ignoreShrink) { /* * Feature in Windows Vista and newer. Using LVM_REDRAWITEMS causes LVN_GETDISPINFO * to be sent before the method returns. For this reason, LVM_REDRAWITEMS * can never be used from a LVN_GETDISPINFO handler. The fix is to * InvalidateRect() passing the bounds for the entire item. */ if (OS.WIN32_VERSION >= OS.VERSION(6, 0)) { RECT rect = new RECT(); rect.left = OS.LVIR_BOUNDS; ignoreCustomDraw = true; long code = OS.SendMessage(handle, OS.LVM_GETITEMRECT, plvfi.iItem, rect); ignoreCustomDraw = false; if (code != 0) OS.InvalidateRect(handle, rect, true); break; } else { if ((style & SWT.VIRTUAL) != 0 && !item.cached) { OS.SendMessage(handle, OS.LVM_REDRAWITEMS, plvfi.iItem, plvfi.iItem); break; } } } /* * The cached flag is used by both virtual and non-virtual * tables to indicate that Windows has asked at least once * for a table item. */ if (!item.cached) { if ((style & SWT.VIRTUAL) != 0) { lastIndexOf = plvfi.iItem; if (!checkData(item, lastIndexOf, false)) break; TableItem newItem = fixScrollWidth ? null : item; if (setScrollWidth(newItem, true)) { OS.InvalidateRect(handle, null, true); } } item.cached = true; } if ((plvfi.mask & OS.LVIF_TEXT) != 0) { String string = null; if (plvfi.iSubItem == 0) { string = item.text; } else { String[] strings = item.strings; if (strings != null && plvfi.iSubItem < strings.length) string = strings[plvfi.iSubItem]; } if (string != null) { /* * Bug in Windows. When pszText points to a zero length * NULL terminated string, Windows correctly draws the * empty string but the cache of the bounds for the item * is not reset. This means that when the text for the * item is set and then reset to an empty string, the * selection draws using the bounds of the previous text. * The fix is to use a space rather than an empty string * when anything but a tool tip is requested (to avoid * a tool tip that is a single space). * * NOTE: This is only a problem for items in the first * column. Assigning NULL to other columns stops Windows * from drawing the selection when LVS_EX_FULLROWSELECT * is set. */ int length = Math.min(string.length(), Math.max(0, plvfi.cchTextMax - 1)); if (!tipRequested && plvfi.iSubItem == 0 && length == 0) { string = " "; //$NON-NLS-1$ length = 1; } if (length > 1 && (state & HAS_AUTO_DIRECTION) != 0) { switch (BidiUtil.resolveTextDirection(string)) { case SWT.LEFT_TO_RIGHT: string = LRE + string; length++; break; case SWT.RIGHT_TO_LEFT: string = RLE + string; length++; break; } } char[] buffer = display.tableBuffer; if (buffer == null || plvfi.cchTextMax > buffer.length) { buffer = display.tableBuffer = new char[plvfi.cchTextMax]; } string.getChars(0, length, buffer, 0); if (tipRequested) { /* * Bug in Windows. The tooltip is only displayed up to * the first line delimiter. The fix is to remove all * line delimiter characters. */ int shift = 0; for (int i = 0; i < length; i++) { switch (buffer[i]) { case '\r': case '\n': shift++; break; default: if (shift != 0) buffer[i - shift] = buffer[i]; } } length -= shift; } buffer[length++] = 0; OS.MoveMemory(plvfi.pszText, buffer, length * 2); } } boolean move = false; if ((plvfi.mask & OS.LVIF_IMAGE) != 0) { Image image = null; if (plvfi.iSubItem == 0) { image = item.image; } else { Image[] images = item.images; if (images != null && plvfi.iSubItem < images.length) image = images[plvfi.iSubItem]; } if (image != null) { plvfi.iImage = imageIndex(image, plvfi.iSubItem); move = true; } } if ((plvfi.mask & OS.LVIF_STATE) != 0) { if (plvfi.iSubItem == 0) { int state = 1; if (item.checked) state++; if (item.grayed) state += 2; if (!OS.IsWindowEnabled(handle)) state += 4; plvfi.state = state << 12; plvfi.stateMask = OS.LVIS_STATEIMAGEMASK; move = true; } } if ((plvfi.mask & OS.LVIF_INDENT) != 0) { if (plvfi.iSubItem == 0) { plvfi.iIndent = item.imageIndent; move = true; } } if (move) OS.MoveMemory(lParam, plvfi, NMLVDISPINFO.sizeof); break; } case OS.NM_CUSTOMDRAW: { long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); if (hdr.hwndFrom == hwndHeader) break; if (!customDraw && findImageControl() == null) { /* * Feature in Windows. When the table is disabled, it draws * with a gray background but does not gray the text. The fix * is to explicitly gray the text using Custom Draw. */ if (OS.IsWindowEnabled(handle)) { /* * Feature in Windows. On Vista using the explorer theme, * Windows draws a vertical line to separate columns. When * there is only a single column, the line looks strange. * The fix is to draw the background using custom draw. */ if (!explorerTheme || columnCount != 0) break; } } NMLVCUSTOMDRAW nmcd = new NMLVCUSTOMDRAW(); OS.MoveMemory(nmcd, lParam, NMLVCUSTOMDRAW.sizeof); switch (nmcd.dwDrawStage) { case OS.CDDS_PREPAINT: return CDDS_PREPAINT(nmcd, wParam, lParam); case OS.CDDS_ITEMPREPAINT: return CDDS_ITEMPREPAINT(nmcd, wParam, lParam); case OS.CDDS_ITEMPOSTPAINT: return CDDS_ITEMPOSTPAINT(nmcd, wParam, lParam); case OS.CDDS_SUBITEMPREPAINT: return CDDS_SUBITEMPREPAINT(nmcd, wParam, lParam); case OS.CDDS_SUBITEMPOSTPAINT: return CDDS_SUBITEMPOSTPAINT(nmcd, wParam, lParam); case OS.CDDS_POSTPAINT: return CDDS_POSTPAINT(nmcd, wParam, lParam); } break; } case OS.LVN_MARQUEEBEGIN: { if ((style & SWT.SINGLE) != 0) return LRESULT.ONE; if (hooks(SWT.MouseDown) || hooks(SWT.MouseUp)) { return LRESULT.ONE; } if ((style & SWT.RIGHT_TO_LEFT) != 0) { if (findImageControl() != null) return LRESULT.ONE; } break; } case OS.LVN_BEGINDRAG: case OS.LVN_BEGINRDRAG: { if (OS.GetKeyState(OS.VK_LBUTTON) >= 0) break; dragStarted = true; if (hdr.code == OS.LVN_BEGINDRAG) { int pos = OS.GetMessagePos(); POINT pt = new POINT(); OS.POINTSTOPOINT(pt, pos); OS.ScreenToClient(handle, pt); sendDragEvent(1, pt.x, pt.y); } break; } case OS.LVN_COLUMNCLICK: { NMLISTVIEW pnmlv = new NMLISTVIEW(); OS.MoveMemory(pnmlv, lParam, NMLISTVIEW.sizeof); TableColumn column = columns[pnmlv.iSubItem]; if (column != null) { column.sendSelectionEvent(SWT.Selection); } break; } case OS.LVN_ITEMACTIVATE: { if (ignoreActivate) break; NMLISTVIEW pnmlv = new NMLISTVIEW(); OS.MoveMemory(pnmlv, lParam, NMLISTVIEW.sizeof); if (pnmlv.iItem != -1) { Event event = new Event(); event.item = _getItem(pnmlv.iItem); sendSelectionEvent(SWT.DefaultSelection, event, false); } break; } case OS.LVN_ITEMCHANGED: { if (fullRowSelect) { fullRowSelect = false; OS.DefWindowProc(handle, OS.WM_SETREDRAW, 1, 0); OS.SendMessage(handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_FULLROWSELECT, 0); } if (!ignoreSelect) { NMLISTVIEW pnmlv = new NMLISTVIEW(); OS.MoveMemory(pnmlv, lParam, NMLISTVIEW.sizeof); if ((pnmlv.uChanged & OS.LVIF_STATE) != 0) { if (pnmlv.iItem == -1) { wasSelected = true; } else { boolean oldSelected = (pnmlv.uOldState & OS.LVIS_SELECTED) != 0; boolean newSelected = (pnmlv.uNewState & OS.LVIS_SELECTED) != 0; if (oldSelected != newSelected) wasSelected = true; } } } if (hooks(SWT.EraseItem) || hooks(SWT.PaintItem)) { long hwndHeader = OS.SendMessage(handle, OS.LVM_GETHEADER, 0, 0); int count = (int) OS.SendMessage(hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); if (count != 0) { forceResize(); RECT rect = new RECT(); OS.GetClientRect(handle, rect); NMLISTVIEW pnmlv = new NMLISTVIEW(); OS.MoveMemory(pnmlv, lParam, NMLISTVIEW.sizeof); if (pnmlv.iItem != -1) { RECT itemRect = new RECT(); itemRect.left = OS.LVIR_BOUNDS; ignoreCustomDraw = true; OS.SendMessage(handle, OS.LVM_GETITEMRECT, pnmlv.iItem, itemRect); ignoreCustomDraw = false; RECT headerRect = new RECT(); int index = (int) OS.SendMessage(hwndHeader, OS.HDM_ORDERTOINDEX, count - 1, 0); OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); OS.MapWindowPoints(hwndHeader, handle, headerRect, 2); rect.left = headerRect.right; rect.top = itemRect.top; rect.bottom = itemRect.bottom; OS.InvalidateRect(handle, rect, true); } } } break; } } return super.wmNotifyChild(hdr, wParam, lParam); } LRESULT wmNotifyHeader(NMHDR hdr, long wParam, long lParam) { /* * Feature in Windows. On NT, the automatically created * header control is created as a UNICODE window, not an * ANSI window despite the fact that the parent is created * as an ANSI window. This means that it sends UNICODE * notification messages to the parent window on NT for * no good reason. The data and size in the NMHEADER and * HDITEM structs is identical between the platforms so no * different message is actually necessary. Despite this, * Windows sends different messages. The fix is to look * for both messages, despite the platform. This works * because only one will be sent on either platform, never * both. */ switch (hdr.code) { case OS.HDN_BEGINTRACK: case OS.HDN_DIVIDERDBLCLICK: { if (columnCount == 0) return LRESULT.ONE; NMHEADER phdn = new NMHEADER(); OS.MoveMemory(phdn, lParam, NMHEADER.sizeof); TableColumn column = columns[phdn.iItem]; if (column != null && !column.getResizable()) { return LRESULT.ONE; } ignoreColumnMove = true; if (hdr.code == OS.HDN_DIVIDERDBLCLICK) { if (column != null && hooks(SWT.MeasureItem)) { column.pack(); return LRESULT.ONE; } } break; } case OS.NM_CUSTOMDRAW: { NMCUSTOMDRAW nmcd = new NMCUSTOMDRAW(); OS.MoveMemory(nmcd, lParam, NMCUSTOMDRAW.sizeof); switch (nmcd.dwDrawStage) { case OS.CDDS_PREPAINT: { /* Drawing here will be deleted by further drawing steps, even with OS.CDRF_SKIPDEFAULT. Changing the TextColor and returning OS.CDRF_NEWFONT has no effect. */ return new LRESULT(customHeaderDrawing() ? OS.CDRF_NOTIFYITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT : OS.CDRF_DODEFAULT); } case OS.CDDS_ITEMPREPAINT: { // draw background RECT rect = new RECT(); OS.SetRect(rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); int pixel = getHeaderBackgroundPixel(); if ((nmcd.uItemState & OS.CDIS_SELECTED) != 0) { pixel = getDifferentColor(pixel); } else if (columns[(int) nmcd.dwItemSpec] == sortColumn && sortDirection != SWT.NONE) { pixel = getSlightlyDifferentColor(pixel); } long brush = OS.CreateSolidBrush(pixel); OS.FillRect(nmcd.hdc, rect, brush); OS.DeleteObject(brush); return new LRESULT(OS.CDRF_SKIPDEFAULT); // if we got here, we will paint everything ourself } case OS.CDDS_POSTPAINT: { // get the cursor position POINT cursorPos = new POINT(); OS.GetCursorPos(cursorPos); OS.MapWindowPoints(0, hwndHeader, cursorPos, 1); // drawing all cells int highlightedHeaderDividerX = -1; int lastColumnRight = -1; RECT[] rects = new RECT[columnCount]; for (int i = 0; i < columnCount; i++) { rects[i] = new RECT(); OS.SendMessage(hwndHeader, OS.HDM_GETITEMRECT, i, rects[i]); if (rects[i].right > lastColumnRight) { lastColumnRight = rects[i].right; } if (columns[i] == sortColumn && sortDirection != SWT.NONE) { // the display.getSortImage looks terrible after scaling up. long pen = OS.CreatePen(OS.PS_SOLID, 1, getHeaderForegroundPixel()); long oldPen = OS.SelectObject(nmcd.hdc, pen); int center = rects[i].left + (rects[i].right - rects[i].left) / 2; /* * Sort indicator size needs to scale as per the Native Windows OS DPI level * when header is custom drawn. For more details refer bug 537097. */ int leg = DPIUtil.autoScaleUpUsingNativeDPI(3); if (sortDirection == SWT.UP) { OS.Polyline(nmcd.hdc, new int[] { center - leg, 1 + leg, center + 1, 0 }, 2); OS.Polyline(nmcd.hdc, new int[] { center + leg, 1 + leg, center - 1, 0 }, 2); } else if (sortDirection == SWT.DOWN) { OS.Polyline(nmcd.hdc, new int[] { center - leg, 1, center + 1, 1 + leg + 1 }, 2); OS.Polyline(nmcd.hdc, new int[] { center + leg, 1, center - 1, 1 + leg + 1 }, 2); } OS.SelectObject(nmcd.hdc, oldPen); OS.DeleteObject(pen); } /* Windows 7 and 10 always draw a nearly invisible vertical line between the columns, even if lines are disabled. This line uses no fixed color constant, but calculates it from the background color. The method getSlightlyDifferentColor gives us a color, that is near enough to the windows algorithm. */ long pen = OS.CreatePen(OS.PS_SOLID, getGridLineWidthInPixels(), getSlightlyDifferentColor(getHeaderBackgroundPixel())); long oldPen = OS.SelectObject(nmcd.hdc, pen); int alignmentCorrection = _getLinesVisible() ? 0 : 1; OS.Polyline(nmcd.hdc, new int[] { rects[i].right - alignmentCorrection, rects[i].top, rects[i].right - alignmentCorrection, rects[i].bottom }, 2); OS.SelectObject(nmcd.hdc, oldPen); OS.DeleteObject(pen); pen = OS.CreatePen(OS.PS_SOLID, getGridLineWidthInPixels(), OS.GetSysColor(OS.COLOR_3DFACE)); oldPen = OS.SelectObject(nmcd.hdc, pen); /* To differentiate headers, always draw header column separator. */ OS.Polyline(nmcd.hdc, new int[] { rects[i].right - alignmentCorrection, rects[i].top, rects[i].right - alignmentCorrection, rects[i].bottom }, 2); /* To differentiate header & content area, always draw the line separator between header & first row. */ if (i == 0) OS.Polyline(nmcd.hdc, new int[] { nmcd.left, nmcd.bottom - 1, nmcd.right + 1, nmcd.bottom - 1 }, 2); OS.SelectObject(nmcd.hdc, oldPen); OS.DeleteObject(pen); if (headerItemDragging && highlightedHeaderDividerX == -1) { int distanceToLeftBorder = cursorPos.x - rects[i].left; int distanceToRightBorder = rects[i].right - cursorPos.x; if (distanceToLeftBorder >= 0 && distanceToRightBorder >= 0) { // the cursor is in the current rectangle highlightedHeaderDividerX = distanceToLeftBorder <= distanceToRightBorder ? rects[i].left - 1 : rects[i].right; } } int x = rects[i].left + INSET + 2; if (columns[i].image != null) { GCData data = new GCData(); data.device = display; GC gc = GC.win32_new(nmcd.hdc, data); int y = Math.max(0, (nmcd.bottom - columns[i].image.getBoundsInPixels().height) / 2); gc.drawImage(columns[i].image, DPIUtil.autoScaleDown(x), DPIUtil.autoScaleDown(y)); x += columns[i].image.getBoundsInPixels().width + 12; gc.dispose(); } if (columns[i].text != null) { int flags = OS.DT_NOPREFIX | OS.DT_SINGLELINE | OS.DT_VCENTER; if ((columns[i].style & SWT.CENTER) != 0) flags |= OS.DT_CENTER; if ((columns[i].style & SWT.RIGHT) != 0) flags |= OS.DT_RIGHT; char[] buffer = columns[i].text.toCharArray(); OS.SetBkMode(nmcd.hdc, OS.TRANSPARENT); OS.SetTextColor(nmcd.hdc, getHeaderForegroundPixel()); RECT textRect = new RECT(); textRect.left = x; textRect.top = rects[i].top; textRect.right = rects[i].right - (x - rects[i].left); textRect.bottom = rects[i].bottom; OS.DrawText(nmcd.hdc, buffer, buffer.length, textRect, flags); } } if (lastColumnRight < nmcd.right) { // draw background of the 'no column' area RECT rect = new RECT(); lastColumnRight += _getLinesVisible() ? 1 : 0; OS.SetRect(rect, lastColumnRight, nmcd.top, nmcd.right, nmcd.bottom - 1); long brush = OS.CreateSolidBrush(getHeaderBackgroundPixel()); OS.FillRect(nmcd.hdc, rect, brush); OS.DeleteObject(brush); } // always draw the highlighted border at the end, to avoid overdrawing by other borders. if (highlightedHeaderDividerX != -1) { long pen = OS.CreatePen(OS.PS_SOLID, 4, OS.GetSysColor(OS.COLOR_HIGHLIGHT)); long oldPen = OS.SelectObject(nmcd.hdc, pen); OS.Polyline(nmcd.hdc, new int[] { highlightedHeaderDividerX, nmcd.top, highlightedHeaderDividerX, nmcd.bottom }, 2); OS.SelectObject(nmcd.hdc, oldPen); OS.DeleteObject(pen); } return new LRESULT(OS.CDRF_DODEFAULT); } } break; } case OS.NM_RELEASEDCAPTURE: { if (!ignoreColumnMove) { for (int i = 0; i < columnCount; i++) { TableColumn column = columns[i]; column.updateToolTip(i); } } ignoreColumnMove = false; break; } case OS.HDN_BEGINDRAG: { if (ignoreColumnMove) return LRESULT.ONE; int bits = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); if ((bits & OS.LVS_EX_HEADERDRAGDROP) != 0) { if (columnCount == 0) return LRESULT.ONE; NMHEADER phdn = new NMHEADER(); OS.MoveMemory(phdn, lParam, NMHEADER.sizeof); if (phdn.iItem != -1) { TableColumn column = columns[phdn.iItem]; if (column != null && !column.getMoveable()) { ignoreColumnMove = true; return LRESULT.ONE; } } headerItemDragging = true; } break; } case OS.HDN_ENDDRAG: { headerItemDragging = false; int bits = (int) OS.SendMessage(handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); if ((bits & OS.LVS_EX_HEADERDRAGDROP) == 0) break; NMHEADER phdn = new NMHEADER(); OS.MoveMemory(phdn, lParam, NMHEADER.sizeof); if (phdn.iItem != -1 && phdn.pitem != 0) { HDITEM pitem = new HDITEM(); OS.MoveMemory(pitem, phdn.pitem, HDITEM.sizeof); if ((pitem.mask & OS.HDI_ORDER) != 0 && pitem.iOrder != -1) { if (columnCount == 0) break; int[] order = new int[columnCount]; OS.SendMessage(handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, order); int index = 0; while (index < order.length) { if (order[index] == phdn.iItem) break; index++; } if (index == order.length) index = 0; if (index == pitem.iOrder) break; int start = Math.min(index, pitem.iOrder); int end = Math.max(index, pitem.iOrder); ignoreColumnMove = false; for (int i = start; i <= end; i++) { TableColumn column = columns[order[i]]; if (!column.isDisposed()) { column.postEvent(SWT.Move); } } } } break; } case OS.HDN_ITEMCHANGED: { /* * Bug in Windows. When a table has the LVS_EX_GRIDLINES extended * style and the user drags any column over the first column in the * table, making the size become zero, when the user drags a column * such that the size of the first column becomes non-zero, the grid * lines are not redrawn. The fix is to detect the case and force * a redraw of the first column. */ int width = (int) OS.SendMessage(handle, OS.LVM_GETCOLUMNWIDTH, 0, 0); if (lastWidth == 0 && width > 0) { if (_getLinesVisible()) { RECT rect = new RECT(); OS.GetClientRect(handle, rect); rect.right = rect.left + width; OS.InvalidateRect(handle, rect, true); } } lastWidth = width; if (!ignoreColumnResize) { NMHEADER phdn = new NMHEADER(); OS.MoveMemory(phdn, lParam, NMHEADER.sizeof); if (phdn.pitem != 0) { HDITEM pitem = new HDITEM(); OS.MoveMemory(pitem, phdn.pitem, HDITEM.sizeof); if ((pitem.mask & OS.HDI_WIDTH) != 0) { TableColumn column = columns[phdn.iItem]; if (column != null) { column.updateToolTip(phdn.iItem); column.sendEvent(SWT.Resize); if (isDisposed()) return LRESULT.ZERO; /* * It is possible (but unlikely), that application * code could have disposed the column in the move * event. If this happens, process the move event * for those columns that have not been destroyed. */ TableColumn[] newColumns = new TableColumn[columnCount]; System.arraycopy(columns, 0, newColumns, 0, columnCount); int[] order = new int[columnCount]; OS.SendMessage(handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, order); boolean moved = false; for (int i = 0; i < columnCount; i++) { TableColumn nextColumn = newColumns[order[i]]; if (moved && !nextColumn.isDisposed()) { nextColumn.updateToolTip(order[i]); nextColumn.sendEvent(SWT.Move); } if (nextColumn == column) moved = true; } } } } } break; } case OS.HDN_ITEMDBLCLICK: { NMHEADER phdn = new NMHEADER(); OS.MoveMemory(phdn, lParam, NMHEADER.sizeof); TableColumn column = columns[phdn.iItem]; if (column != null) { column.sendSelectionEvent(SWT.DefaultSelection); } break; } } return null; } LRESULT wmNotifyToolTip(NMHDR hdr, long wParam, long lParam) { switch (hdr.code) { case OS.NM_CUSTOMDRAW: { if (toolTipText != null) break; if (isCustomToolTip()) { NMTTCUSTOMDRAW nmcd = new NMTTCUSTOMDRAW(); OS.MoveMemory(nmcd, lParam, NMTTCUSTOMDRAW.sizeof); return wmNotifyToolTip(nmcd, lParam); } break; } case OS.TTN_GETDISPINFO: case OS.TTN_SHOW: { LRESULT result = super.wmNotify(hdr, wParam, lParam); if (result != null) return result; if (hdr.code != OS.TTN_SHOW) tipRequested = true; long code = callWindowProc(handle, OS.WM_NOTIFY, wParam, lParam); if (hdr.code != OS.TTN_SHOW) tipRequested = false; if (toolTipText != null) break; if (isCustomToolTip()) { LVHITTESTINFO pinfo = new LVHITTESTINFO(); int pos = OS.GetMessagePos(); POINT pt = new POINT(); OS.POINTSTOPOINT(pt, pos); OS.ScreenToClient(handle, pt); pinfo.x = pt.x; pinfo.y = pt.y; /* * Bug in Windows. When LVM_SUBITEMHITTEST is used to hittest * a point that is above the table, instead of returning -1 to * indicate that the hittest failed, a negative index is returned. * The fix is to consider any value that is negative a failure. */ if (OS.SendMessage(handle, OS.LVM_SUBITEMHITTEST, 0, pinfo) >= 0) { TableItem item = _getItem(pinfo.iItem); long hDC = OS.GetDC(handle); long oldFont = 0, newFont = OS.SendMessage(handle, OS.WM_GETFONT, 0, 0); if (newFont != 0) oldFont = OS.SelectObject(hDC, newFont); long hFont = item.fontHandle(pinfo.iSubItem); if (hFont != -1) hFont = OS.SelectObject(hDC, hFont); Event event = sendMeasureItemEvent(item, pinfo.iItem, pinfo.iSubItem, hDC); if (!isDisposed() && !item.isDisposed()) { RECT itemRect = new RECT(); Rectangle boundsInPixels = event.getBoundsInPixels(); OS.SetRect(itemRect, boundsInPixels.x, boundsInPixels.y, boundsInPixels.x + boundsInPixels.width, boundsInPixels.y + boundsInPixels.height); if (hdr.code == OS.TTN_SHOW) { RECT toolRect = toolTipRect(itemRect); OS.MapWindowPoints(handle, 0, toolRect, 2); long hwndToolTip = OS.SendMessage(handle, OS.LVM_GETTOOLTIPS, 0, 0); int flags = OS.SWP_NOACTIVATE | OS.SWP_NOZORDER; int width = toolRect.right - toolRect.left, height = toolRect.bottom - toolRect.top; OS.SetWindowPos(hwndToolTip, 0, toolRect.left, toolRect.top, width, height, flags); } else { NMTTDISPINFO lpnmtdi = new NMTTDISPINFO(); OS.MoveMemory(lpnmtdi, lParam, NMTTDISPINFO.sizeof); if (lpnmtdi.lpszText != 0) { OS.MoveMemory(lpnmtdi.lpszText, new char[1], 2); OS.MoveMemory(lParam, lpnmtdi, NMTTDISPINFO.sizeof); } RECT cellRect = item.getBounds(pinfo.iItem, pinfo.iSubItem, true, true, true, true, hDC); RECT clientRect = new RECT(); OS.GetClientRect(handle, clientRect); if (itemRect.right > cellRect.right || itemRect.right > clientRect.right) { //TEMPORARY CODE String string = " "; // String string = null; // if (pinfo.iSubItem == 0) { // string = item.text; // } else { // String [] strings = item.strings; // if (strings != null) string = strings [pinfo.iSubItem]; // } if (string != null) { Shell shell = getShell(); char[] chars = new char[string.length() + 1]; string.getChars(0, string.length(), chars, 0); shell.setToolTipText(lpnmtdi, chars); OS.MoveMemory(lParam, lpnmtdi, NMTTDISPINFO.sizeof); } } } } if (hFont != -1) hFont = OS.SelectObject(hDC, hFont); if (newFont != 0) OS.SelectObject(hDC, oldFont); OS.ReleaseDC(handle, hDC); } } return new LRESULT(code); } } return null; } LRESULT wmNotifyToolTip(NMTTCUSTOMDRAW nmcd, long lParam) { switch (nmcd.dwDrawStage) { case OS.CDDS_PREPAINT: { if (isCustomToolTip()) { //TEMPORARY CODE // nmcd.uDrawFlags |= OS.DT_CALCRECT; // OS.MoveMemory (lParam, nmcd, NMTTCUSTOMDRAW.sizeof); return new LRESULT(OS.CDRF_NOTIFYPOSTPAINT | OS.CDRF_NEWFONT); } break; } case OS.CDDS_POSTPAINT: { LVHITTESTINFO pinfo = new LVHITTESTINFO(); int pos = OS.GetMessagePos(); POINT pt = new POINT(); OS.POINTSTOPOINT(pt, pos); OS.ScreenToClient(handle, pt); pinfo.x = pt.x; pinfo.y = pt.y; /* * Bug in Windows. When LVM_SUBITEMHITTEST is used to hittest * a point that is above the table, instead of returning -1 to * indicate that the hittest failed, a negative index is returned. * The fix is to consider any value that is negative a failure. */ if (OS.SendMessage(handle, OS.LVM_SUBITEMHITTEST, 0, pinfo) >= 0) { TableItem item = _getItem(pinfo.iItem); long hDC = OS.GetDC(handle); long hFont = item.fontHandle(pinfo.iSubItem); if (hFont == -1) hFont = OS.SendMessage(handle, OS.WM_GETFONT, 0, 0); long oldFont = OS.SelectObject(hDC, hFont); boolean drawForeground = true; RECT cellRect = item.getBounds(pinfo.iItem, pinfo.iSubItem, true, true, false, false, hDC); if (hooks(SWT.EraseItem)) { Event event = sendEraseItemEvent(item, nmcd, pinfo.iSubItem, cellRect); if (isDisposed() || item.isDisposed()) break; if (event.doit) { drawForeground = (event.detail & SWT.FOREGROUND) != 0; } else { drawForeground = false; } } if (drawForeground) { int nSavedDC = OS.SaveDC(nmcd.hdc); int gridWidth = getLinesVisible() ? Table.GRID_WIDTH : 0; RECT insetRect = toolTipInset(cellRect); OS.SetWindowOrgEx(nmcd.hdc, insetRect.left, insetRect.top, null); GCData data = new GCData(); data.device = display; data.foreground = OS.GetTextColor(nmcd.hdc); data.background = OS.GetBkColor(nmcd.hdc); data.font = Font.win32_new(display, hFont); GC gc = GC.win32_new(nmcd.hdc, data); int x = cellRect.left; if (pinfo.iSubItem != 0) x -= gridWidth; Image image = item.getImage(pinfo.iSubItem); if (image != null) { Rectangle rect = image.getBoundsInPixels(); RECT imageRect = item.getBounds(pinfo.iItem, pinfo.iSubItem, false, true, false, false, hDC); Point size = imageList == null ? new Point(rect.width, rect.height) : imageList.getImageSize(); int y = imageRect.top + Math.max(0, (imageRect.bottom - imageRect.top - size.y) / 2); rect = DPIUtil.autoScaleDown(rect); gc.drawImage(image, rect.x, rect.y, rect.width, rect.height, DPIUtil.autoScaleDown(x), DPIUtil.autoScaleDown(y), DPIUtil.autoScaleDown(size.x), DPIUtil.autoScaleDown(size.y)); x += size.x + INSET + (pinfo.iSubItem == 0 ? -2 : 4); } else { x += INSET + 2; } String string = item.getText(pinfo.iSubItem); if (string != null) { int flags = OS.DT_NOPREFIX | OS.DT_SINGLELINE | OS.DT_VCENTER; TableColumn column = columns != null ? columns[pinfo.iSubItem] : null; if (column != null) { if ((column.style & SWT.CENTER) != 0) flags |= OS.DT_CENTER; if ((column.style & SWT.RIGHT) != 0) flags |= OS.DT_RIGHT; } char[] buffer = string.toCharArray(); RECT textRect = new RECT(); OS.SetRect(textRect, x, cellRect.top, cellRect.right, cellRect.bottom); OS.DrawText(nmcd.hdc, buffer, buffer.length, textRect, flags); } gc.dispose(); OS.RestoreDC(nmcd.hdc, nSavedDC); } if (hooks(SWT.PaintItem)) { RECT itemRect = item.getBounds(pinfo.iItem, pinfo.iSubItem, true, true, false, false, hDC); sendPaintItemEvent(item, nmcd, pinfo.iSubItem, itemRect); } OS.SelectObject(hDC, oldFont); OS.ReleaseDC(handle, hDC); } } } return null; } }