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+/*******************************************************************************
+ * 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();
+}
+}