| /******************************************************************************* |
| * 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; |
| |
| /* |
| * Write an animated GIF to a file. |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| */ |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet194 { |
| Display display; |
| Color white, red, green, blue; |
| PaletteData palette; |
| Font font; |
| |
| public static void main(String[] args) { |
| new Snippet194().run(); |
| } |
| |
| public void run() { |
| display = new Display(); |
| RGB whiteRGB = new RGB(0xff, 0xff, 0xff); |
| RGB redRGB = new RGB(0xff, 0, 0); |
| RGB greenRGB = new RGB(0, 0xff, 0); |
| RGB blueRGB = new RGB(0, 0, 0xff); |
| palette = new PaletteData(new RGB[] { |
| whiteRGB, // 0 |
| redRGB, // 1 |
| greenRGB, // 2 |
| blueRGB }); // 3 |
| white = new Color(display, whiteRGB); |
| red = new Color(display, redRGB); |
| green = new Color(display, greenRGB); |
| blue = new Color(display, blueRGB); |
| font = new Font(display, "Comic Sans MS", 24, SWT.BOLD); |
| |
| ImageData[] data = new ImageData[4]; |
| data[0] = newFrame("", white, false, 0, 0, 101, 55, SWT.DM_FILL_NONE, 40); |
| data[1] = newFrame("S", red, true, 0, 0, 30, 55, SWT.DM_FILL_NONE, 40); |
| data[2] = newFrame("W", green, true, 28, 0, 39, 55, SWT.DM_FILL_NONE, 40); |
| data[3] = newFrame("T", blue, true, 69, 0, 32, 55, SWT.DM_FILL_BACKGROUND, 200); |
| |
| ImageLoader loader = new ImageLoader(); |
| loader.data = data; |
| loader.backgroundPixel = 0; |
| loader.logicalScreenHeight = data[0].height; |
| loader.logicalScreenWidth = data[0].width; |
| loader.repeatCount = 0; // run forever |
| loader.save("swt.gif", SWT.IMAGE_GIF); |
| |
| white.dispose(); |
| red.dispose(); |
| green.dispose(); |
| blue.dispose(); |
| font.dispose(); |
| display.dispose(); |
| } |
| |
| ImageData newFrame(String letter, Color color, boolean transparent, int x, int y, int width, int height, int disposalMethod, int delayTime) { |
| ImageData temp = new ImageData(width, height, 2, palette); // 4-color palette has depth 2 |
| Image image = new Image(display, temp); |
| GC gc = new GC(image); |
| gc.setBackground(white); |
| gc.fillRectangle(0, 0, width, height); |
| gc.setForeground(color); |
| gc.setFont(font); |
| gc.drawString(letter, 5, 5); |
| gc.dispose(); |
| ImageData frame = image.getImageData(); |
| if (transparent) frame.transparentPixel = 0; // white |
| image.dispose(); |
| frame.x = x; |
| frame.y = y; |
| frame.disposalMethod = disposalMethod; |
| frame.delayTime = delayTime; |
| return frame; |
| } |
| } |