| /******************************************************************************* |
| * Copyright (c) 2000, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * SWT StyledText and Combo snippet: using BidiSegmentListener and |
| * SegmentListener to implement custom bidi segments, such as right-to-left |
| * override |
| * |
| * Note that SegmentListener in the Combo widget is supported since 4.4 and |
| * currently only on win32 platform |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| * |
| * @since 3.6 |
| */ |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.custom.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet332 { |
| |
| public static void main(String [] args) { |
| final Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setText("Snippet 332"); |
| GridLayout layout = new GridLayout(); |
| layout.marginHeight = layout.marginWidth = 10; |
| shell.setLayout(layout); |
| StyledText text = new StyledText(shell, SWT.MULTI | SWT.BORDER); |
| final String segment = "Eclipse"; |
| String string = "Force RTL direction on this segment \""+segment+"\"."; |
| text.setText(string); |
| int[] segments = {string.indexOf(segment), segment.length()}; |
| StyleRange[] ranges = {new StyleRange(0, 0, display.getSystemColor(SWT.COLOR_RED), null)}; |
| text.setStyleRanges(segments, ranges); |
| Font font = new Font(display, "Tahoma", 16, 0); |
| text.setFont(font); |
| text.addBidiSegmentListener(event -> { |
| String string1 = event.lineText; |
| int start = string1.indexOf(segment); |
| event.segments = new int []{start, start + segment.length()}; |
| event.segmentsChars = new char[] {'\u202e', '\u202C'}; |
| }); |
| Combo combo = new Combo(shell, SWT.SIMPLE); |
| combo.setFont(font); |
| combo.setBackground(display.getSystemColor(SWT.COLOR_YELLOW)); |
| combo.setItems("Option 1...", "Option 2...", "Option 3...", "Option 4..."); |
| combo.select(1); |
| combo.addSegmentListener(event -> { |
| event.segments = new int [] {0, event.lineText.length()}; |
| event.segmentsChars = new char [] {'\u202e', '\u202c'}; |
| }); |
| shell.setSize(500, 250); |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) display.sleep(); |
| } |
| font.dispose(); |
| display.dispose(); |
| } |
| } |