Mercurial > projects > dwt-samples
annotate snippets/gc/Snippet207.d @ 120:1f0a7a472680
fix rm snippets from module statements.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 20 Jul 2008 19:17:23 +0200 |
| parents | 4a04b6759f98 |
| children |
| rev | line source |
|---|---|
| 78 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2005 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 * Port to the D programming language: | |
| 11 * Bill Baxter <bill@billbaxter.com> | |
| 12 *******************************************************************************/ | |
|
120
1f0a7a472680
fix rm snippets from module statements.
Frank Benoit <benoit@tionex.de>
parents:
78
diff
changeset
|
13 module gc.Snippet207; |
| 78 | 14 |
| 15 /* | |
| 16 * Use transformation matrices to reflect, rotate and shear images | |
| 17 * | |
| 18 * For a list of all SWT example snippets see | |
| 19 * http://www.eclipse.org/swt/snippets/ | |
| 20 */ | |
| 21 import dwt.DWT; | |
| 22 import dwt.events.PaintEvent; | |
| 23 import dwt.events.PaintListener; | |
| 24 import dwt.graphics.GC; | |
| 25 import dwt.graphics.Transform; | |
| 26 import dwt.graphics.Font; | |
| 27 import dwt.graphics.Rectangle; | |
| 28 import dwt.graphics.Image; | |
| 29 import dwt.layout.FillLayout; | |
| 30 import dwt.widgets.Display; | |
| 31 import dwt.widgets.Shell; | |
| 32 import dwt.widgets.Canvas; | |
| 33 | |
| 34 import Math=tango.math.Math; | |
| 35 | |
| 36 void main() { | |
| 37 Display display = new Display(); | |
| 38 | |
| 39 Image image = new Image(display, 110, 60); | |
| 40 GC gc = new GC(image); | |
| 41 Font font = new Font(display, "Times", 30., DWT.BOLD); | |
| 42 gc.setFont(font); | |
| 43 gc.setBackground(display.getSystemColor(DWT.COLOR_RED)); | |
| 44 gc.fillRectangle(0, 0, 110, 60); | |
| 45 gc.setForeground(display.getSystemColor(DWT.COLOR_WHITE)); | |
| 46 gc.drawText("DWT", 10, 10, true); | |
| 47 font.dispose(); | |
| 48 gc.dispose(); | |
| 49 | |
| 50 Rectangle rect = image.getBounds(); | |
| 51 Shell shell = new Shell(display); | |
| 52 shell.setText("Matrix Tranformations"); | |
| 53 shell.setLayout(new FillLayout()); | |
| 54 Canvas canvas = new Canvas(shell, DWT.DOUBLE_BUFFERED); | |
| 55 canvas.addPaintListener(new class() PaintListener { | |
| 56 public void paintControl(PaintEvent e) { | |
| 57 GC gc = e.gc; | |
| 58 gc.setAdvanced(true); | |
| 59 if (!gc.getAdvanced()){ | |
| 60 gc.drawText("Advanced graphics not supported", 30, 30, true); | |
| 61 return; | |
| 62 } | |
| 63 | |
| 64 // Original image | |
| 65 int x = 30, y = 30; | |
| 66 gc.drawImage(image, x, y); | |
| 67 x += rect.width + 30; | |
| 68 | |
| 69 Transform transform = new Transform(display); | |
| 70 | |
| 71 // Note that the tranform is applied to the whole GC therefore | |
| 72 // the coordinates need to be adjusted too. | |
| 73 | |
| 74 // Reflect around the y axis. | |
| 75 transform.setElements(-1, 0, 0, 1, 0 ,0); | |
| 76 gc.setTransform(transform); | |
| 77 gc.drawImage(image, -1*x-rect.width, y); | |
| 78 | |
| 79 x = 30; y += rect.height + 30; | |
| 80 | |
| 81 // Reflect around the x axis. | |
| 82 transform.setElements(1, 0, 0, -1, 0, 0); | |
| 83 gc.setTransform(transform); | |
| 84 gc.drawImage(image, x, -1*y-rect.height); | |
| 85 | |
| 86 x += rect.width + 30; | |
| 87 | |
| 88 // Reflect around the x and y axes | |
| 89 transform.setElements(-1, 0, 0, -1, 0, 0); | |
| 90 gc.setTransform(transform); | |
| 91 gc.drawImage(image, -1*x-rect.width, -1*y-rect.height); | |
| 92 | |
| 93 x = 30; y += rect.height + 30; | |
| 94 | |
| 95 // Shear in the x-direction | |
| 96 transform.setElements(1, 0, -1, 1, 0, 0); | |
| 97 gc.setTransform(transform); | |
| 98 gc.drawImage(image, 300, y); | |
| 99 | |
| 100 // Shear in y-direction | |
| 101 transform.setElements(1, -1, 0, 1, 0, 0); | |
| 102 gc.setTransform(transform); | |
| 103 gc.drawImage(image, 150, 475); | |
| 104 | |
| 105 // Rotate by 45 degrees | |
| 106 float cos45 = Math.cos(45); | |
| 107 float sin45 = Math.sin(45); | |
| 108 transform.setElements(cos45, sin45, -sin45, cos45, 0, 0); | |
| 109 gc.setTransform(transform); | |
| 110 gc.drawImage(image, 350, 100); | |
| 111 | |
| 112 transform.dispose(); | |
| 113 } | |
| 114 }); | |
| 115 | |
| 116 shell.setSize(350, 550); | |
| 117 shell.open(); | |
| 118 while (!shell.isDisposed()) { | |
| 119 if (!display.readAndDispatch()) | |
| 120 display.sleep(); | |
| 121 } | |
| 122 image.dispose(); | |
| 123 display.dispose(); | |
| 124 } | |
| 125 | |
| 126 | |
| 127 | |
| 128 | |
| 129 |