| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * Fill a shape with a predefined pattern |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| * |
| * @since 3.1 |
| */ |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet200 { |
| public static void main(String[] args) { |
| Display display = new Display(); |
| //define a pattern on an image |
| final Image image = new Image(display, 1000, 1000); |
| Color blue = display.getSystemColor(SWT.COLOR_BLUE); |
| Color yellow = display.getSystemColor(SWT.COLOR_YELLOW); |
| Color white = display.getSystemColor(SWT.COLOR_WHITE); |
| GC gc = new GC(image); |
| gc.setBackground(white); |
| gc.setForeground(yellow); |
| gc.fillGradientRectangle(0, 0, 1000, 1000, true); |
| for (int i=-500; i<1000; i+=10) { |
| gc.setForeground(blue); |
| gc.drawLine(i, 0, 500 + i, 1000); |
| gc.drawLine(500 + i, 0, i, 1000); |
| } |
| gc.dispose(); |
| final Pattern pattern; |
| try { |
| pattern = new Pattern(display, image); |
| } catch (SWTException e) { |
| //Advanced Graphics not supported. |
| //This new API requires the Cairo Vector engine on GTK and Motif and GDI+ on Windows. |
| System.out.println(e.getMessage()); |
| return; |
| } |
| |
| Shell shell = new Shell(display); |
| shell.setLayout(new FillLayout()); |
| Composite c = new Composite(shell, SWT.DOUBLE_BUFFERED); |
| c.addListener(SWT.Paint, new Listener() { |
| public void handleEvent(Event event) { |
| Rectangle r = ((Composite)event.widget).getClientArea(); |
| GC gc = event.gc; |
| gc.setBackgroundPattern(pattern); |
| gc.fillOval(5, 5, r.width - 10, r.height - 10); |
| } |
| }); |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| image.dispose(); |
| pattern.dispose(); |
| display.dispose(); |
| } |
| } |