Java tutorial
/******************************************************************************* * Copyright (c) 2015 Frank Becker and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Frank Becker - initial API and implementation *******************************************************************************/ package org.eclipse.mylyn.internal.bugzilla.ui.editor; import java.util.List; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ColumnLabelProvider; import org.eclipse.jface.viewers.ColumnViewerToolTipSupport; import org.eclipse.jface.viewers.IOpenListener; import org.eclipse.jface.viewers.OpenEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.ViewerCell; import org.eclipse.jface.window.ToolTip; import org.eclipse.mylyn.commons.ui.CommonImages; import org.eclipse.mylyn.commons.workbench.browser.BrowserUtil; import org.eclipse.mylyn.internal.bugzilla.core.BugzillaAttribute; import org.eclipse.mylyn.internal.bugzilla.core.BugzillaTaskDataHandler; import org.eclipse.mylyn.internal.bugzilla.ui.BugzillaImages; import org.eclipse.mylyn.tasks.core.data.TaskAttribute; import org.eclipse.mylyn.tasks.core.data.TaskDataModel; import org.eclipse.mylyn.tasks.ui.editors.AbstractAttributeEditor; import org.eclipse.mylyn.tasks.ui.editors.LayoutHint; import org.eclipse.mylyn.tasks.ui.editors.LayoutHint.ColumnSpan; import org.eclipse.mylyn.tasks.ui.editors.LayoutHint.RowSpan; import org.eclipse.swt.SWT; import org.eclipse.swt.dnd.Clipboard; import org.eclipse.swt.dnd.TextTransfer; import org.eclipse.swt.dnd.Transfer; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.forms.widgets.FormToolkit; public class BugzillaSeeAlsoAttributeEditor extends AbstractAttributeEditor { private Table seeAlsoTable; private TaskAttribute attrRemoveSeeAlso; public BugzillaSeeAlsoAttributeEditor(TaskDataModel manager, TaskAttribute taskAttribute) { super(manager, taskAttribute); setLayoutHint(new LayoutHint(RowSpan.MULTIPLE, ColumnSpan.MULTIPLE)); } @Override public void createControl(Composite parent, FormToolkit toolkit) { attrRemoveSeeAlso = getModel().getTaskData().getRoot() .getMappedAttribute(BugzillaAttribute.REMOVE_SEE_ALSO.getKey()); if (attrRemoveSeeAlso == null) { attrRemoveSeeAlso = BugzillaTaskDataHandler.createAttribute(getModel().getTaskData(), BugzillaAttribute.REMOVE_SEE_ALSO); } createSeeAlsoTable(toolkit, parent); setControl(seeAlsoTable); } private final String[] seeAlsoColumns = { "", Messages.BugzillaSeeAlsoAttributeEditor_Remove, //$NON-NLS-1$ Messages.BugzillaSeeAlsoAttributeEditor_URL }; private final int[] seeAlsoColumnWidths = { 25, 60, 100 }; private TableViewer seeAlsoViewer; private void createSeeAlsoTable(FormToolkit toolkit, final Composite seeAlsoComposite) { seeAlsoTable = toolkit.createTable(seeAlsoComposite, SWT.MULTI | SWT.FULL_SELECTION); seeAlsoTable.setLinesVisible(true); seeAlsoTable.setHeaderVisible(true); seeAlsoTable.setLayout(new GridLayout()); seeAlsoTable.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TREE_BORDER); for (int i = 0; i < seeAlsoColumns.length; i++) { TableColumn column = new TableColumn(seeAlsoTable, SWT.LEFT, i); column.setText(seeAlsoColumns[i]); column.setWidth(seeAlsoColumnWidths[i]); column.setMoveable(true); } seeAlsoViewer = new TableViewer(seeAlsoTable); seeAlsoViewer.setUseHashlookup(true); seeAlsoViewer.setColumnProperties(seeAlsoColumns); ColumnViewerToolTipSupport.enableFor(seeAlsoViewer, ToolTip.NO_RECREATE); seeAlsoViewer.setContentProvider(new ArrayContentProvider()); seeAlsoViewer.addOpenListener(new IOpenListener() { public void open(OpenEvent event) { openseeAlso(event); } private void openseeAlso(OpenEvent event) { StructuredSelection selection = (StructuredSelection) event.getSelection(); for (String item : (List<String>) selection.toList()) { BrowserUtil.openUrl(item); } } }); seeAlsoViewer.setLabelProvider(new ColumnLabelProvider() { public Image getColumnImage(Object element, int columnIndex) { String value = (String) element; if (columnIndex == 0) { if (value.contains("/r/#/c/") || value.contains("git.eclipse.org/r/")) { //$NON-NLS-1$ //$NON-NLS-2$ return CommonImages.getImage(BugzillaImages.GERRIT); } else if (value.contains("/commit/?id=")) { //$NON-NLS-1$ return CommonImages.getImage(BugzillaImages.GIT); } else { return CommonImages.getImage(BugzillaImages.BUG); } } return null; } public String getColumnText(Object element, int columnIndex) { String value = (String) element; switch (columnIndex) { case 0: return null; case 1: return attrRemoveSeeAlso.getValues().contains(value) ? Messages.BugzillaSeeAlsoAttributeEditor_Yes : Messages.BugzillaSeeAlsoAttributeEditor_No; default: return value; } } @Override public void update(ViewerCell cell) { Object element = cell.getElement(); cell.setText(getColumnText(element, cell.getColumnIndex())); Image image = getColumnImage(element, cell.getColumnIndex()); cell.setImage(image); cell.setBackground(getBackground(element)); cell.setForeground(getForeground(element)); cell.setFont(getFont(element)); } }); seeAlsoViewer.setInput(getTaskAttribute().getValues().toArray()); GC gc = new GC(seeAlsoComposite); int maxSize = 0; for (String string : getTaskAttribute().getValues()) { Point size = gc.textExtent(string); if (size.x > maxSize) { maxSize = size.x; } } if (maxSize == 0) { maxSize = 100; } seeAlsoTable.getColumn(2).setWidth(maxSize); MenuManager menuManager = new MenuManager(); menuManager.setRemoveAllWhenShown(true); menuManager.addMenuListener(new IMenuListener() { public void menuAboutToShow(IMenuManager manager) { manager.add(openAction); manager.add(copyURLToClipAction); manager.add(toggelRemoveStateAction); } }); Menu menu = menuManager.createContextMenu(seeAlsoTable); seeAlsoTable.setMenu(menu); } final Action copyURLToClipAction = new Action(Messages.BugzillaSeeAlsoAttributeEditor_CopyURL) { @Override public void run() { StructuredSelection selection = ((StructuredSelection) seeAlsoViewer.getSelection()); if (selection != null) { Object firstElement = selection.getFirstElement(); if (firstElement != null) { Clipboard clip = new Clipboard(PlatformUI.getWorkbench().getDisplay()); clip.setContents(new Object[] { (String) firstElement }, new Transfer[] { TextTransfer.getInstance() }); clip.dispose(); } } } }; final Action openAction = new Action(Messages.BugzillaSeeAlsoAttributeEditor_Open) { @Override public void run() { StructuredSelection selection = ((StructuredSelection) seeAlsoViewer.getSelection()); if (selection != null) { for (String url : (List<String>) selection.toList()) { BrowserUtil.openUrl(url); } } } }; final Action toggelRemoveStateAction = new Action(Messages.BugzillaSeeAlsoAttributeEditor_ToggelRemoveState) { @Override public void run() { StructuredSelection selection = ((StructuredSelection) seeAlsoViewer.getSelection()); boolean changed = false; if (selection != null) { for (String url : (List<String>) selection.toList()) { if (attrRemoveSeeAlso.getValues().contains(url)) { attrRemoveSeeAlso.removeValue(url); } else { attrRemoveSeeAlso.addValue(url); } changed = true; } if (changed) { getModel().attributeChanged(attrRemoveSeeAlso); seeAlsoViewer.refresh(); } } } }; }