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comparison snippets/opengl/Snippet174.d @ 78:4a04b6759f98

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Clean up directory names
author John Reimer <terminal.node@gmail.com>
date Sat, 10 May 2008 13:32:45 -0700
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children 1f0a7a472680
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76:04f122e90b0a 78:4a04b6759f98
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 snippets.opengl.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 dwt.DWT;
30 import dwt.dwthelper.Runnable;
31 import dwt.widgets.Display;
32 import dwt.widgets.Shell;
33 import dwt.graphics.Rectangle;
34 import dwt.events.ControlEvent;
35 import dwt.events.ControlAdapter;
36 import dwt.layout.FillLayout;
37 import dwt.opengl.GLCanvas;
38 import dwt.opengl.GLData;
39
40 import derelict.opengl.gl;
41 import derelict.opengl.glu;
42
43 import Math = tango.math.Math;
44
45 public static void main()
46 {
47 DerelictGL.load();
48 DerelictGLU.load();
49
50 Display display = new Display();
51 Shell shell = new Shell(display);
52 shell.setText("OpenGL in DWT");
53 shell.setLayout(new FillLayout());
54 GLData data = new GLData();
55 data.doubleBuffer = true;
56 final GLCanvas canvas = new GLCanvas(shell, DWT.NO_BACKGROUND, data);
57 canvas.addControlListener(new class ControlAdapter {
58 public void controlResized(ControlEvent e) {
59 resize(canvas);
60 }
61 });
62 init(canvas);
63 (new class Runnable {
64 public void run() {
65 if (canvas.isDisposed()) return;
66 render();
67 canvas.swapBuffers();
68 canvas.getDisplay().timerExec(15, this);
69 }
70 }).run();
71 shell.open();
72 while (!shell.isDisposed()) {
73 if (!display.readAndDispatch()) display.sleep();
74 }
75 display.dispose();
76 }
77
78 static void init(GLCanvas canvas) {
79 canvas.setCurrent();
80 resize(canvas);
81 glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
82 glColor3f(0.0f, 0.0f, 0.0f);
83 glClearDepth(1.0f);
84 glEnable(GL_DEPTH_TEST);
85 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
86 }
87
88 static void render() {
89 static int rot = 0;
90 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
91 glLoadIdentity();
92 glTranslatef(0.0f, 0.0f, -6.0f);
93 glRotatef(rot++, 0,0,1);
94 rot %= 360;
95 glBegin(GL_QUADS);
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 glVertex3f(-1.0f, -1.0f, 0.0f);
100 glEnd();
101 }
102
103 static void resize(GLCanvas canvas) {
104 canvas.setCurrent();
105 Rectangle rect = canvas.getClientArea();
106 int width = rect.width;
107 int height = Math.max(rect.height, 1);
108 glViewport(0, 0, width, height);
109 glMatrixMode(GL_PROJECTION);
110 glLoadIdentity();
111 float aspect = cast(float) width / cast(float) height;
112 gluPerspective(45.0f, aspect, 0.5f, 400.0f);
113 glMatrixMode(GL_MODELVIEW);
114 glLoadIdentity();
115 }
116