Mercurial > projects > dwt2
annotate org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet288.d @ 29:4e5843b771cc
First snippets buildable on windows
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 22 Mar 2009 19:55:00 +0100 |
| parents | 69b1fa94a4a8 |
| children | 93b0e7382fd5 |
| rev | line source |
|---|---|
| 28 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2008 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 *******************************************************************************/ | |
| 11 module org.eclipse.swt.snippets.Snippet288; | |
| 12 | |
| 13 /* | |
| 14 * Create a ToolBar containing animated GIFs | |
| 15 * | |
| 16 * For a list of all SWT example snippets see | |
| 17 * http://www.eclipse.org/swt/snippets/ | |
| 18 */ | |
| 19 import org.eclipse.swt.SWT; | |
|
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First snippets buildable on windows
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20 import org.eclipse.swt.SWTException; |
| 28 | 21 import org.eclipse.swt.graphics.GC; |
| 22 import org.eclipse.swt.graphics.Color; | |
| 23 import org.eclipse.swt.graphics.Image; | |
| 24 import org.eclipse.swt.graphics.ImageLoader; | |
| 25 import org.eclipse.swt.graphics.ImageData; | |
| 26 import org.eclipse.swt.widgets.Display; | |
| 27 import org.eclipse.swt.widgets.Shell; | |
| 28 import org.eclipse.swt.widgets.ToolBar; | |
| 29 import org.eclipse.swt.widgets.ToolItem; | |
| 30 import org.eclipse.swt.widgets.FileDialog; | |
| 31 | |
| 32 import tango.io.FilePath; | |
| 33 import tango.io.FileConst; | |
| 34 import tango.core.Thread; | |
| 35 import tango.io.Stdout; | |
| 36 import tango.util.Convert; | |
| 37 import tango.core.Exception; | |
| 38 | |
| 39 static Display display; | |
| 40 static Shell shell; | |
| 41 static GC shellGC; | |
| 42 static Color shellBackground; | |
| 43 static ImageLoader[] loader; | |
| 44 static ImageData[][] imageDataArray; | |
| 45 static Thread[] animateThread; | |
| 46 static Image[][] image; | |
| 47 private static ToolItem[] item; | |
| 48 static final bool useGIFBackground = false; | |
| 49 | |
| 50 void main () { | |
| 51 display = new Display(); | |
| 52 Shell shell = new Shell (display); | |
| 53 shellBackground = shell.getBackground(); | |
|
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diff
changeset
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54 FileDialog dialog = new FileDialog(shell, SWT.OPEN | SWT.MULTI); |
| 28 | 55 dialog.setText("Select Multiple Animated GIFs"); |
| 56 dialog.setFilterExtensions(["*.gif"]); | |
| 57 char[] filename = dialog.open(); | |
| 58 char[][] filenames = dialog.getFileNames(); | |
| 59 int numToolBarItems = filenames.length; | |
| 60 if (numToolBarItems > 0) { | |
| 61 try { | |
| 62 loadAllImages((new FilePath(filename)).parent, filenames); | |
|
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63 } catch (SWTException e) { |
| 28 | 64 Stdout.print("There was an error loading an image.").newline; |
| 65 e.printStackTrace(); | |
| 66 } | |
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First snippets buildable on windows
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changeset
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67 ToolBar toolBar = new ToolBar (shell, SWT.FLAT | SWT.BORDER | SWT.WRAP); |
| 28 | 68 item = new ToolItem[numToolBarItems]; |
| 69 for (int i = 0; i < numToolBarItems; i++) { | |
| 70 item[i] = new ToolItem (toolBar, SWT.PUSH); | |
| 71 item[i].setImage(image[i][0]); | |
| 72 } | |
| 73 toolBar.pack (); | |
| 74 shell.open (); | |
| 75 | |
| 76 startAnimationThreads(); | |
| 77 | |
| 78 while (!shell.isDisposed()) { | |
| 79 if (!display.readAndDispatch ()) display.sleep (); | |
| 80 } | |
| 81 | |
| 82 for (int i = 0; i < numToolBarItems; i++) { | |
| 83 for (int j = 0; j < image[i].length; j++) { | |
| 84 image[i][j].dispose(); | |
| 85 } | |
| 86 } | |
| 87 display.dispose (); | |
| 88 } | |
| 89 thread_joinAll(); | |
| 90 } | |
| 91 | |
| 92 private static void loadAllImages(char[] directory, char[][] filenames) { | |
| 93 int numItems = filenames.length; | |
| 94 loader.length = numItems; | |
| 95 imageDataArray.length = numItems; | |
| 96 image.length = numItems; | |
| 97 for (int i = 0; i < numItems; i++) { | |
| 98 loader[i] = new ImageLoader(); | |
| 99 int fullWidth = loader[i].logicalScreenWidth; | |
| 100 int fullHeight = loader[i].logicalScreenHeight; | |
| 101 imageDataArray[i] = loader[i].load(directory ~ FileConst.PathSeparatorChar ~ filenames[i]); | |
| 102 int numFramesOfAnimation = imageDataArray[i].length; | |
| 103 image[i] = new Image[numFramesOfAnimation]; | |
| 104 for (int j = 0; j < numFramesOfAnimation; j++) { | |
| 105 if (j == 0) { | |
| 106 //for the first frame of animation, just draw the first frame | |
| 107 image[i][j] = new Image(display, imageDataArray[i][j]); | |
| 108 fullWidth = imageDataArray[i][j].width; | |
| 109 fullHeight = imageDataArray[i][j].height; | |
| 110 } | |
| 111 else { | |
| 112 //after the first frame of animation, draw the background or previous frame first, then the new image data | |
| 113 image[i][j] = new Image(display, fullWidth, fullHeight); | |
| 114 GC gc = new GC(image[i][j]); | |
| 115 gc.setBackground(shellBackground); | |
| 116 gc.fillRectangle(0, 0, fullWidth, fullHeight); | |
| 117 ImageData imageData = imageDataArray[i][j]; | |
| 118 switch (imageData.disposalMethod) { | |
| 119 case SWT.DM_FILL_BACKGROUND: | |
| 120 /* Fill with the background color before drawing. */ | |
| 121 Color bgColor = null; | |
| 122 if (useGIFBackground && loader[i].backgroundPixel != -1) { | |
| 123 bgColor = new Color(display, imageData.palette.getRGB(loader[i].backgroundPixel)); | |
| 124 } | |
| 125 gc.setBackground(bgColor !is null ? bgColor : shellBackground); | |
| 126 gc.fillRectangle(imageData.x, imageData.y, imageData.width, imageData.height); | |
| 127 if (bgColor !is null) bgColor.dispose(); | |
| 128 break; | |
| 129 default: | |
| 130 /* Restore the previous image before drawing. */ | |
| 131 gc.drawImage( | |
| 132 image[i][j-1], | |
| 133 0, | |
| 134 0, | |
| 135 fullWidth, | |
| 136 fullHeight, | |
| 137 0, | |
| 138 0, | |
| 139 fullWidth, | |
| 140 fullHeight); | |
| 141 break; | |
| 142 } | |
| 143 Image newFrame = new Image(display, imageData); | |
| 144 gc.drawImage(newFrame, | |
| 145 0, | |
| 146 0, | |
| 147 imageData.width, | |
| 148 imageData.height, | |
| 149 imageData.x, | |
| 150 imageData.y, | |
| 151 imageData.width, | |
| 152 imageData.height); | |
| 153 newFrame.dispose(); | |
| 154 gc.dispose(); | |
| 155 } | |
| 156 } | |
| 157 } | |
| 158 } | |
| 159 | |
| 160 private static void startAnimationThreads() { | |
| 161 animateThread = new Thread[image.length]; | |
| 162 for (int ii = 0; ii < image.length; ii++) { | |
| 163 animateThread[ii] = new class(ii) Thread { | |
| 164 int imageDataIndex = 0; | |
| 165 int id = 0; | |
| 166 this(int _id) { | |
| 167 id = _id; | |
| 168 name = "Animation "~to!(char[])(ii); | |
| 169 isDaemon = true; | |
| 170 super(&run); | |
| 171 } | |
| 172 void run() { | |
| 173 try { | |
| 174 int repeatCount = loader[id].repeatCount; | |
| 175 while (loader[id].repeatCount == 0 || repeatCount > 0) { | |
| 176 imageDataIndex = (imageDataIndex + 1) % imageDataArray[id].length; | |
| 177 if (!display.isDisposed()) { | |
| 178 display.asyncExec(new class Runnable { | |
| 179 public void run() { | |
| 180 if (!item[id].isDisposed()) | |
| 181 item[id].setImage(image[id][imageDataIndex]); | |
| 182 } | |
| 183 }); | |
| 184 } | |
| 185 | |
| 186 /* Sleep for the specified delay time (adding commonly-used slow-down fudge factors). */ | |
| 187 try { | |
| 188 int ms = imageDataArray[id][imageDataIndex].delayTime * 10; | |
| 189 if (ms < 20) ms += 30; | |
| 190 if (ms < 30) ms += 10; | |
| 191 Thread.sleep(0.001*ms); | |
| 192 } catch (ThreadException e) { | |
| 193 } | |
| 194 | |
| 195 /* If we have just drawn the last image, decrement the repeat count and start again. */ | |
| 196 if (imageDataIndex == imageDataArray[id].length - 1) repeatCount--; | |
| 197 } | |
|
29
4e5843b771cc
First snippets buildable on windows
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
198 } catch (SWTException ex) { |
| 28 | 199 Stdout.print("There was an error animating the GIF").newline; |
| 200 ex.printStackTrace(); | |
| 201 } | |
| 202 } | |
| 203 }; | |
| 204 animateThread[ii].start(); | |
| 205 } | |
| 206 } | |
| 207 |