| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * TableCursor example snippet: navigate a table cells with arrow keys. |
| * Edit when user hits Return key. Exit edit mode by hitting Escape (cancels edit) |
| * or Return (applies edit to table). |
| * |
| * For a list of all SWT example snippets see |
| * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets |
| */ |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.custom.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet96 { |
| |
| public static void main(String[] args) { |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setLayout(new GridLayout()); |
| |
| // create a a table with 3 columns and fill with data |
| final Table table = new Table(shell, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION); |
| table.setLayoutData(new GridData(GridData.FILL_BOTH)); |
| TableColumn column1 = new TableColumn(table, SWT.NONE); |
| TableColumn column2 = new TableColumn(table, SWT.NONE); |
| TableColumn column3 = new TableColumn(table, SWT.NONE); |
| for (int i = 0; i < 100; i++) { |
| TableItem item = new TableItem(table, SWT.NONE); |
| item.setText(new String[] {"cell " + i + " 0", "cell " + i + " 1", "cell " + i + " 2" }); |
| } |
| column1.pack(); |
| column2.pack(); |
| column3.pack(); |
| |
| // create a TableCursor to navigate around the table |
| final TableCursor cursor = new TableCursor(table, SWT.NONE); |
| // create an editor to edit the cell when the user hits "ENTER" |
| // while over a cell in the table |
| final ControlEditor editor = new ControlEditor(cursor); |
| editor.grabHorizontal = true; |
| editor.grabVertical = true; |
| |
| cursor.addSelectionListener(new SelectionAdapter() { |
| // when the TableEditor is over a cell, select the corresponding row in |
| // the table |
| public void widgetSelected(SelectionEvent e) { |
| table.setSelection(new TableItem[] { cursor.getRow()}); |
| } |
| // when the user hits "ENTER" in the TableCursor, pop up a text editor so that |
| // they can change the text of the cell |
| public void widgetDefaultSelected(SelectionEvent e) { |
| final Text text = new Text(cursor, SWT.NONE); |
| TableItem row = cursor.getRow(); |
| int column = cursor.getColumn(); |
| text.setText(row.getText(column)); |
| text.addKeyListener(new KeyAdapter() { |
| public void keyPressed(KeyEvent e) { |
| // close the text editor and copy the data over |
| // when the user hits "ENTER" |
| if (e.character == SWT.CR) { |
| TableItem row = cursor.getRow(); |
| int column = cursor.getColumn(); |
| row.setText(column, text.getText()); |
| text.dispose(); |
| } |
| // close the text editor when the user hits "ESC" |
| if (e.character == SWT.ESC) { |
| text.dispose(); |
| } |
| } |
| }); |
| editor.setEditor(text); |
| text.setFocus(); |
| } |
| }); |
| // Hide the TableCursor when the user hits the "CTRL" or "SHIFT" key. |
| // This alows the user to select multiple items in the table. |
| cursor.addKeyListener(new KeyAdapter() { |
| public void keyPressed(KeyEvent e) { |
| if (e.keyCode == SWT.CTRL |
| || e.keyCode == SWT.SHIFT |
| || (e.stateMask & SWT.CONTROL) != 0 |
| || (e.stateMask & SWT.SHIFT) != 0) { |
| cursor.setVisible(false); |
| } |
| } |
| }); |
| // Show the TableCursor when the user releases the "SHIFT" or "CTRL" key. |
| // This signals the end of the multiple selection task. |
| table.addKeyListener(new KeyAdapter() { |
| public void keyReleased(KeyEvent e) { |
| if (e.keyCode == SWT.CONTROL && (e.stateMask & SWT.SHIFT) != 0) |
| return; |
| if (e.keyCode == SWT.SHIFT && (e.stateMask & SWT.CONTROL) != 0) |
| return; |
| if (e.keyCode != SWT.CONTROL |
| && (e.stateMask & SWT.CONTROL) != 0) |
| return; |
| if (e.keyCode != SWT.SHIFT && (e.stateMask & SWT.SHIFT) != 0) |
| return; |
| |
| TableItem[] selection = table.getSelection(); |
| TableItem row = (selection.length == 0) ? table.getItem(table.getTopIndex()) : selection[0]; |
| table.showItem(row); |
| cursor.setSelection(row, 0); |
| cursor.setVisible(true); |
| cursor.setFocus(); |
| } |
| }); |
| |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| display.dispose(); |
| } |
| } |