| /******************************************************************************* |
| * Copyright (c) 2018 Red Hat 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: |
| * Red Hat - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.tests.gtk.snippets; |
| |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| /** |
| * This class demonstrates TableCursor |
| */ |
| public class Bug491167_TableCursorScrolling { |
| // The number of rows and columns |
| private static final int NUM = 100; |
| |
| /** |
| * Runs the program |
| */ |
| public void run() { |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setText("Table Cursor Test"); |
| createContents(shell); |
| shell.pack(); |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) { |
| display.sleep(); |
| } |
| } |
| display.dispose(); |
| } |
| |
| /** |
| * Creates the main window's contents |
| * |
| * @param widget.shell |
| * the main window |
| */ |
| private void createContents(Shell shell) { |
| shell.setLayout(new FillLayout()); |
| |
| // Create the widget.table |
| final Table table = new Table(shell, SWT.SINGLE | SWT.FULL_SELECTION); |
| table.setHeaderVisible(true); |
| table.setLinesVisible(true); |
| |
| // Create the columns |
| for (int i = 0; i < NUM; i++) { |
| TableColumn column = new TableColumn(table, SWT.CENTER); |
| column.setText("Column " + (i + 1)); |
| column.pack(); |
| } |
| |
| // Create the rows |
| for (int i = 0; i < NUM; i++) { |
| TableItem item = new TableItem(table, SWT.NONE); |
| item.setText("Text:" + i); |
| } |
| |
| // Create the TableCursor |
| final TableCursor cursor = new TableCursor(table, SWT.NONE); |
| |
| // Create the editor |
| // Use a ControlEditor, not a TableEditor, because the cursor is the |
| // parent |
| final ControlEditor editor = new ControlEditor(cursor); |
| editor.grabHorizontal = true; |
| editor.grabVertical = true; |
| |
| // Add the event handling |
| cursor.addSelectionListener(new SelectionAdapter() { |
| // This is called as the user navigates around the widget.table |
| @Override |
| public void widgetSelected(SelectionEvent event) { |
| // Select the row in the widget.table where the TableCursor is |
| table.setSelection(new TableItem[] { cursor.getRow() }); |
| } |
| |
| // This is called when the user hits Enter |
| @Override |
| public void widgetDefaultSelected(SelectionEvent event) { |
| // Begin an editing session |
| // Notice that the parent of the Text is the TableCursor, not |
| // the Table |
| final Text text = new Text(cursor, SWT.NONE); |
| text.setFocus(); |
| |
| // Copy the widget.text from the cell to the Text |
| text.setText(cursor.getRow().getText(cursor.getColumn())); |
| text.setFocus(); |
| |
| // Add a handler to detect key presses |
| text.addKeyListener(new KeyAdapter() { |
| @Override |
| public void keyPressed(KeyEvent event) { |
| // End the editing and save the widget.text if the user presses |
| // Enter |
| // End the editing and throw away the widget.text if the user |
| // presses Esc |
| switch (event.keyCode) { |
| case SWT.CR: |
| cursor.getRow().setText(cursor.getColumn(), text.getText()); |
| case SWT.ESC: |
| text.dispose(); |
| break; |
| } |
| } |
| }); |
| editor.setEditor(text); |
| } |
| }); |
| } |
| |
| /** |
| * The application entry point |
| * |
| * @param args |
| * the command line arguments |
| */ |
| public static void main(String[] args) { |
| new Bug491167_TableCursorScrolling().run(); |
| } |
| } |