Mercurial > projects > dwt2

comparison org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet174.d @ 28:69b1fa94a4a8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added SWT snippets
author Frank Benoit <benoit@tionex.de>
date Sun, 22 Mar 2009 15:17:04 +0100
parents
children 9f4c18c268b2
comparison
equal deleted inserted replaced
27:1bf55a6eb092 28:69b1fa94a4a8
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 * Sebastian Davids - initial implementation
10 * IBM Corporation
11 * Port to the D programming language:
12 * Bill Baxter <bill@billbaxter.com>
13 *******************************************************************************/
14 module org.eclipse.swt.snippets.Snippet174;
15
16 /*
17 * SWT OpenGL snippet: draw a square
18 *
19 * This snippet requires the experimental org.eclipse.swt.opengl plugin, which
20 * is not included in SWT by default and should only be used with versions of
21 * SWT prior to 3.2. For information on using OpenGL in SWT see
22 * http://www.eclipse.org/swt/opengl/ .
23 *
24 * For a list of all SWT example snippets see
25 * http://www.eclipse.org/swt/snippets/
26 *
27 * @since 3.2
28 */
29 import org.eclipse.swt.SWT;
30 import org.eclipse.swt.widgets.Display;
31 import org.eclipse.swt.widgets.Shell;
32 import org.eclipse.swt.graphics.Rectangle;
33 import org.eclipse.swt.events.ControlEvent;
34 import org.eclipse.swt.events.ControlAdapter;
35 import org.eclipse.swt.layout.FillLayout;
36 import org.eclipse.swt.opengl.GLCanvas;
37 import org.eclipse.swt.opengl.GLData;
38
39 import derelict.opengl.gl;
40 import derelict.opengl.glu;
41
42 import Math = tango.math.Math;
43
44 public static void main()
45 {
46 DerelictGL.load();
47 DerelictGLU.load();
48
49 Display display = new Display();
50 Shell shell = new Shell(display);
51 shell.setText("OpenGL in SWT");
52 shell.setLayout(new FillLayout());
53 GLData data = new GLData();
54 data.doubleBuffer = true;
55 final GLCanvas canvas = new GLCanvas(shell, SWT.NO_BACKGROUND, data);
56 canvas.addControlListener(new class ControlAdapter {
57 public void controlResized(ControlEvent e) {
58 resize(canvas);
59 }
60 });
61 init(canvas);
62 (new class Runnable {
63 public void run() {
64 if (canvas.isDisposed()) return;
65 render();
66 canvas.swapBuffers();
67 canvas.getDisplay().timerExec(15, this);
68 }
69 }).run();
70 shell.open();
71 while (!shell.isDisposed()) {
72 if (!display.readAndDispatch()) display.sleep();
73 }
74 display.dispose();
75 }
76
77 static void init(GLCanvas canvas) {
78 canvas.setCurrent();
79 resize(canvas);
80 glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
81 glColor3f(0.0f, 0.0f, 0.0f);
82 glClearDepth(1.0f);
83 glEnable(GL_DEPTH_TEST);
84 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
85 }
86
87 static void render() {
88 static int rot = 0;
89 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
90 glLoadIdentity();
91 glTranslatef(0.0f, 0.0f, -6.0f);
92 glRotatef(rot++, 0,0,1);
93 rot %= 360;
94 glBegin(GL_QUADS);
95 glVertex3f(-1.0f, 1.0f, 0.0f);
96 glVertex3f(1.0f, 1.0f, 0.0f);
97 glVertex3f(1.0f, -1.0f, 0.0f);
98 glVertex3f(-1.0f, -1.0f, 0.0f);
99 glEnd();
100 }
101
102 static void resize(GLCanvas canvas) {
103 canvas.setCurrent();
104 Rectangle rect = canvas.getClientArea();
105 int width = rect.width;
106 int height = Math.max(rect.height, 1);
107 glViewport(0, 0, width, height);
108 glMatrixMode(GL_PROJECTION);
109 glLoadIdentity();
110 float aspect = cast(float) width / cast(float) height;
111 gluPerspective(45.0f, aspect, 0.5f, 400.0f);
112 glMatrixMode(GL_MODELVIEW);
113 glLoadIdentity();
114 }
115