Mercurial > projects > dwt-samples
view snippets/opengl/Snippet195.d @ 78:4a04b6759f98
Clean up directory names
author | John Reimer <terminal.node@gmail.com> |
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date | Sat, 10 May 2008 13:32:45 -0700 |
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children | 1f0a7a472680 |
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/******************************************************************************* * 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 * Port to the D Programming Language: * John Reimer <terminal.node@gmail.com> *******************************************************************************/ module snippets.opengl.Snippet195; /* * SWT OpenGL snippet: based on snippet195.java * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ * * @since 3.2 */ import dwt.DWT; import dwt.dwthelper.Runnable; import dwt.layout.FillLayout; import dwt.widgets.Shell; import dwt.widgets.Display; import dwt.widgets.Event; import dwt.widgets.Composite; import dwt.widgets.Listener; import dwt.graphics.Rectangle; import dwt.opengl.GLCanvas; import dwt.opengl.GLData; import derelict.opengl.gl; import derelict.opengl.glu; import Math = tango.math.Math; void drawTorus(float r, float R, int nsides, int rings) { float ringDelta = 2.0f * cast(float) Math.PI / rings; float sideDelta = 2.0f * cast(float) Math.PI / nsides; float theta = 0.0f, cosTheta = 1.0f, sinTheta = 0.0f; for (int i = rings - 1; i >= 0; i--) { float theta1 = theta + ringDelta; float cosTheta1 = cast(float) Math.cos(theta1); float sinTheta1 = cast(float) Math.sin(theta1); glBegin(GL_QUAD_STRIP); float phi = 0.0f; for (int j = nsides; j >= 0; j--) { phi += sideDelta; float cosPhi = cast(float) Math.cos(phi); float sinPhi = cast(float) Math.sin(phi); float dist = R + r * cosPhi; glNormal3f(cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi); glVertex3f(cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi); glNormal3f(cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi); glVertex3f(cosTheta * dist, -sinTheta * dist, r * sinPhi); } glEnd(); theta = theta1; cosTheta = cosTheta1; sinTheta = sinTheta1; } } void main() { DerelictGL.load(); DerelictGLU.load(); Display display = new Display(); Shell shell = new Shell(display); shell.setLayout(new FillLayout()); Composite comp = new Composite(shell, DWT.NONE); comp.setLayout(new FillLayout()); GLData data = new GLData (); data.doubleBuffer = true; GLCanvas canvas = new GLCanvas(comp, DWT.NONE, data); canvas.setCurrent(); canvas.addListener(DWT.Resize, new class() Listener { public void handleEvent(Event event) { Rectangle bounds = canvas.getBounds(); float fAspect = cast(float) bounds.width / cast(float) bounds.height; glViewport(0, 0, bounds.width, bounds.height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, fAspect, 0.5f, 400.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } }); glClearColor(1.0f, 1.0f, 1.0f, 1.0f); glColor3f(1.0f, 0.0f, 0.0f); glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); glClearDepth(1.0); glLineWidth(2); glEnable(GL_DEPTH_TEST); shell.setText("DWT/DerelictGL Example"); shell.setSize(640, 480); shell.open(); display.asyncExec(new class() Runnable { int rot = 0; public void run() { if (!canvas.isDisposed()) { canvas.setCurrent(); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glClearColor(.3f, .5f, .8f, 1.0f); glLoadIdentity(); glTranslatef(0.0f, 0.0f, -10.0f); float frot = rot; glRotatef(0.15f * rot, 2.0f * frot, 10.0f * frot, 1.0f); glRotatef(0.3f * rot, 3.0f * frot, 1.0f * frot, 1.0f); rot++; glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); glColor3f(0.9f, 0.9f, 0.9f); drawTorus(1, 1.9f + (cast(float) Math.sin((0.004f * frot))), 15, 15); canvas.swapBuffers(); display.asyncExec(this); } } }); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); }