Java tutorial
/** * This file is part of Archiv-Editor. * * The software Archiv-Editor serves as a client user interface for working with * the Person Data Repository. See: pdr.bbaw.de * * The software Archiv-Editor was developed at the Berlin-Brandenburg Academy * of Sciences and Humanities, Jgerstr. 22/23, D-10117 Berlin. * www.bbaw.de * * Copyright (C) 2010-2013 Berlin-Brandenburg Academy * of Sciences and Humanities * * The software Archiv-Editor was developed by @author: Christoph Plutte. * * Archiv-Editor is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Archiv-Editor is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with Archiv-Editor. * If not, see <http://www.gnu.org/licenses/lgpl-3.0.html>. */ package org.bbaw.pdr.ae.view.control.dialogs; import java.util.Vector; import org.bbaw.pdr.ae.common.AEVIEWConstants; import org.bbaw.pdr.ae.view.control.ViewHelper; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.resource.FontRegistry; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.ScrolledComposite; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.events.FocusListener; import org.eclipse.swt.events.MouseEvent; import org.eclipse.swt.events.MouseListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.FontData; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.PlatformUI; public class CharMapDialog extends TitleAreaDialog { static // private static final LocalResourceManager _resources = new LocalResourceManager(JFaceResources.getResources()); private Vector<Character> chars = new Vector<Character>(773); private Text selectedText; private ScrolledComposite _scrollComp; private Text _charText; FontRegistry fontRegistry = new FontRegistry(PlatformUI.getWorkbench().getDisplay()); public CharMapDialog(Shell parentShell) { super(parentShell); } @Override public final void create() { super.create(); // Set the title setTitle("Char map"); //$NON-NLS-1$ // Set the message setMessage("select char", IMessageProvider.INFORMATION); //$NON-NLS-1$ } @Override public final void createButtonsForButtonBar(final Composite parent) { GridData gridData = new GridData(); gridData.verticalAlignment = GridData.FILL; gridData.horizontalSpan = 3; gridData.grabExcessHorizontalSpace = true; gridData.grabExcessVerticalSpace = true; gridData.horizontalAlignment = SWT.CENTER; parent.setLayoutData(gridData); // Create Add button // Own method as we need to overview the SelectionAdapter createOkButton(parent, OK, "insert", true); //$NON-NLS-1$ // Add a SelectionListener // Create Cancel button Button cancelButton = createButton(parent, CANCEL, "cancel", false); //$NON-NLS-1$ // Add a SelectionListener cancelButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(final SelectionEvent e) { setReturnCode(CANCEL); close(); } }); } @Override public final Control createDialogArea(final Composite parent) { int i; char ch; Character c; for (i = 0; i <= 0xffff; i++) { ch = (char) i; // if (i % 0x10 == 0) // { // System.out.println(); // } // if (i % 0x100 == 0) // { // System.out.println("****" + Integer.toHexString(i / 0x100) + // "****"); // } if (Integer.toHexString(i / 0x100).equals("8")) { break; } if ((i > 31 && i < 127) || (i > 160 && i < 564) || (i > 591 && i < 686) || (i > 912 && i < 1015) || (i > 1023 && i < 1270) || (i > 1487 && i < 1515) || (i > 1519 && i < 1525)) { c = new Character(ch); chars.add(c); // System.out.println(ch + " " + i); } } // System.out.println(); fontRegistry.put("font2", new FontData[] { new FontData("Arial", 30, SWT.BOLD) }); // fontRegistry.put("font1", new FontData[] // {new FontData("Arial", 12, SWT.NONE)}); Composite mainComposite = new Composite(parent, SWT.NONE); mainComposite.setLayout(new GridLayout(2, false)); mainComposite.setLayoutData(new GridData()); ((GridData) mainComposite.getLayoutData()).heightHint = 320; ((GridData) mainComposite.getLayoutData()).widthHint = 220; ((GridData) mainComposite.getLayoutData()).horizontalSpan = 2; ((GridData) mainComposite.getLayoutData()).horizontalAlignment = SWT.FILL; ((GridData) mainComposite.getLayoutData()).grabExcessHorizontalSpace = true; _scrollComp = new ScrolledComposite(mainComposite, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL); _scrollComp.setExpandHorizontal(true); _scrollComp.setExpandVertical(true); _scrollComp.setMinSize(SWT.DEFAULT, SWT.DEFAULT); _scrollComp.setLayoutData(new GridData()); ((GridData) _scrollComp.getLayoutData()).heightHint = 240; ((GridData) _scrollComp.getLayoutData()).widthHint = 200; ((GridData) _scrollComp.getLayoutData()).horizontalSpan = 2; ((GridData) _scrollComp.getLayoutData()).horizontalAlignment = SWT.FILL; ((GridData) _scrollComp.getLayoutData()).grabExcessHorizontalSpace = true; _scrollComp.setMinHeight(1); _scrollComp.setMinWidth(1); _scrollComp.setLayout(new GridLayout()); Composite contentComp = new Composite(_scrollComp, SWT.NONE); contentComp.setLayoutData(new GridData()); ((GridData) contentComp.getLayoutData()).horizontalSpan = 2; contentComp.setLayout(new GridLayout()); ((GridLayout) contentComp.getLayout()).numColumns = 25; ((GridLayout) contentComp.getLayout()).makeColumnsEqualWidth = false; contentComp.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE)); _scrollComp.setContent(contentComp); ViewHelper.accelerateScrollbar(_scrollComp, 10); _scrollComp.setShowFocusedControl(true); // RAP auskommentiert // MouseWheelListener mwl = new MouseWheelListener() { // // @Override // public void mouseScrolled(MouseEvent e) { // _scrollComp.setOrigin(_scrollComp.getOrigin().x, // _scrollComp.getOrigin().y - e.count * 10); // // } // }; FocusListener sl = new FocusListener() { @Override public void focusGained(FocusEvent e) { if (selectedText != null) { selectedText.setBackground(AEVIEWConstants.VIEW_BACKGROUND_DESELECTED_COLOR); } Text l = (Text) e.widget; l.setBackground(AEVIEWConstants.VIEW_BACKGROUND_SELECTED_COLOR); selectedText = l; _charText.setText(l.getText()); _charText.pack(); } @Override public void focusLost(FocusEvent e) { // TODO Auto-generated method stub } }; MouseListener ml = new MouseListener() { @Override public void mouseUp(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mouseDown(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mouseDoubleClick(MouseEvent e) { okPressed(); } }; GridData gd = new GridData(); // int i; for (Character cc : chars) { Text b = new Text(contentComp, SWT.READ_ONLY); b.setText(new String(cc.toString())); b.addFocusListener(sl); b.setLayoutData(gd); // RAP auskommentiert // b.addMouseWheelListener(mwl); b.setBackground(AEVIEWConstants.VIEW_BACKGROUND_DESELECTED_COLOR); b.addMouseListener(ml); // b.setFont(fontRegistry.get("font1")); } // for(i=0;i<=0xffff;i++) // { // ch=(char)i; // if (i % 0x10 == 0) // { // System.out.println(); // } // if (i % 0x100 == 0) // { // System.out.println("****" + Integer.toHexString(i / 0x100) + "****"); // } // if (Integer.toHexString(i/0x100).equals("8")) break; // System.out.print(ch); // Text b = new Text(contentComp, SWT.READ_ONLY); // b.setText(new String (new char[]{ch})); // b.addFocusListener(sl); // b.setLayoutData(gd); // b.addMouseWheelListener(mwl); // b.setBackground(AEVIEWConstants.VIEW_BACKGROUND_DESELECTED_COLOR); // b.addMouseListener(ml); // b.setFont(fontRegistry.get("font1")); // } // System.out.println(); contentComp.layout(); _scrollComp.setContent(contentComp); Point point = contentComp.computeSize(SWT.DEFAULT, SWT.DEFAULT, true); // Point mp = mainComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT, true); // if (point.x > mp.x - 20) point.x = mp.x - 20; _scrollComp.setMinSize(point); // scrollComp.pack(); _scrollComp.layout(); _scrollComp.setFocus(); Label charLabel = new Label(mainComposite, SWT.NONE); charLabel.setText("Character"); _charText = new Text(mainComposite, SWT.READ_ONLY); _charText.setLayoutData(new GridData()); ((GridData) _charText.getLayoutData()).horizontalSpan = 1; _charText.setFont(fontRegistry.get("font2")); mainComposite.layout(); parent.pack(); return parent; } /** * creates OKButton. * @param parent parent composite * @param id id * @param label label of button * @param defaultButton is default * @return okButton */ protected final Button createOkButton(final Composite parent, final int id, final String label, final boolean defaultButton) { // increment the number of columns in the button bar ((GridLayout) parent.getLayout()).numColumns++; Button button = new Button(parent, SWT.PUSH); button.setText(label); button.setFont(JFaceResources.getDialogFont()); button.setData(new Integer(id)); button.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(final SelectionEvent event) { if (isValidInput()) { okPressed(); } } }); if (defaultButton) { Shell shell = parent.getShell(); if (shell != null) { shell.setDefaultButton(button); } } setButtonLayoutData(button); return button; } @Override protected final boolean isResizable() { return false; } /** * checks if input is valid. * @return boolean valid TODO die berprfung des Benutzernamens und * Passwortes soll nicht hier, sondern in der Controller-Schicht * oder sogar in der DAtenhaltung aus gefhrt werden. TODO * User-datenbank einbauen. */ private boolean isValidInput() { boolean valid = true; return valid; } /** * @see org.eclipse.jface.dialogs.Dialog#okPressed() */ @Override protected final void okPressed() { setReturnCode(_charText.getText().charAt(0)); close(); } }