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Diffstat (limited to 'examples/org.eclipse.swt.opengl.examples/src/org/eclipse/swt/opengl/examples/AreaTab.java')
| -rw-r--r-- | examples/org.eclipse.swt.opengl.examples/src/org/eclipse/swt/opengl/examples/AreaTab.java | 434 |
1 files changed, 0 insertions, 434 deletions
diff --git a/examples/org.eclipse.swt.opengl.examples/src/org/eclipse/swt/opengl/examples/AreaTab.java b/examples/org.eclipse.swt.opengl.examples/src/org/eclipse/swt/opengl/examples/AreaTab.java deleted file mode 100644 index be5ee724e2..0000000000 --- a/examples/org.eclipse.swt.opengl.examples/src/org/eclipse/swt/opengl/examples/AreaTab.java +++ /dev/null @@ -1,434 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2003 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 - *******************************************************************************/ -package org.eclipse.swt.opengl.examples; - - -import org.eclipse.opengl.*; -import org.eclipse.swt.*; -import org.eclipse.swt.layout.*; -import org.eclipse.swt.widgets.*; - -class AreaTab extends OpenGLTab { - abstract class Shape { - abstract void draw(); - } - class State { - private String name; - private int index; - /** - * Constructor. - * - * @param name the display name of this state - * @param index the display list index corresponding to this state - */ - State (String name, int index) { - super(); - this.index = index; - this.name = name; - } - void display() { - GL.glCallList(index); - } - void dispose() { - GL.glDeleteLists(index, 1); - } - String getName() { - return name; - } - } - - private State[] states; - private State currentState; - private float xPos = 0.0f, yPos = 0.0f, zPos = -30.0f; - private float xRot = 90.0f, yRot = 0.0f, zRot = 0.0f; - private int quadratic, disk; - - /** - * @see OpenGLTab#createControls(Composite) - */ - void createControls(Composite composite) { - Group movementGroup = new Group(composite, SWT.NONE); - movementGroup.setText("Translation"); - movementGroup.setLayout(new GridLayout(2, false)); - - new Label(movementGroup, SWT.NONE).setText("X:"); - final Slider xMove = new Slider(movementGroup, SWT.NONE); - xMove.setIncrement(1); - xMove.setMaximum(22); - xMove.setMinimum(0); - xMove.setThumb(2); - xMove.setPageIncrement(2); - xMove.setSelection(10); - xMove.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event e) { - xPos = xMove.getSelection() - 10; - } - }); - - new Label(movementGroup, SWT.NONE).setText("Y:"); - final Slider yMove = new Slider(movementGroup, SWT.NONE); - yMove.setIncrement(1); - yMove.setMaximum(22); - yMove.setMinimum(0); - yMove.setThumb(2); - yMove.setPageIncrement(2); - yMove.setSelection(10); - yMove.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event e) { - yPos = yMove.getSelection() - 10; - } - }); - - new Label(movementGroup, SWT.NONE).setText("Z:"); - final Slider zMove = new Slider(movementGroup, SWT.NONE); - zMove.setIncrement(1); - zMove.setMaximum(22); - zMove.setMinimum(0); - zMove.setThumb(2); - zMove.setPageIncrement(2); - zMove.setSelection(10); - zMove.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event e) { - zPos = zMove.getSelection() - 40; - } - }); - - Group rotationGroup = new Group(composite, SWT.NONE); - rotationGroup.setText("Rotation"); - rotationGroup.setLayout(new GridLayout(2, false)); - - new Label(rotationGroup, SWT.NONE).setText("X:"); - final Slider xRotation = new Slider(rotationGroup, SWT.NONE); - xRotation.setIncrement(10); - xRotation.setMaximum(362); - xRotation.setMinimum(0); - xRotation.setThumb(2); - xRotation.setPageIncrement(20); - xRotation.setSelection(90); - xRotation.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event e) { - xRot = xRotation.getSelection(); - } - }); - - new Label(rotationGroup, SWT.NONE).setText("Y:"); - final Slider yRotation = new Slider(rotationGroup, SWT.NONE); - yRotation.setIncrement(10); - yRotation.setMaximum(362); - yRotation.setMinimum(0); - yRotation.setThumb(2); - yRotation.setPageIncrement(20); - yRotation.setSelection(0); - yRotation.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event e) { - yRot = yRotation.getSelection(); - } - }); - - new Label(rotationGroup, SWT.NONE).setText("Z:"); - final Slider zRotation = new Slider(rotationGroup, SWT.NONE); - zRotation.setIncrement(10); - zRotation.setMaximum(362); - zRotation.setMinimum(0); - zRotation.setThumb(2); - zRotation.setPageIncrement(20); - zRotation.setSelection(0); - zRotation.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event e) { - zRot = zRotation.getSelection(); - } - }); - - Composite optionsGroup = new Composite(composite, SWT.NONE); - GridLayout layout = new GridLayout(2, false); - layout.marginWidth = 0; - optionsGroup.setLayout(layout); - - new Label(optionsGroup, SWT.NONE).setText("Shape:"); - - final Combo statesCombo = new Combo(optionsGroup, SWT.READ_ONLY); - for (int i = 0; i < states.length; i++) { - statesCombo.add(states[i].getName()); - } - statesCombo.select(0); - statesCombo.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event e) { - currentState = states[statesCombo.getSelectionIndex()]; - } - }); - - final Button lightsButton = new Button(composite, SWT.CHECK); - lightsButton.setText("Lights"); - lightsButton.setSelection(true); - lightsButton.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event e) { - if (lightsButton.getSelection()) { - GL.glEnable(GL.GL_LIGHTING); - } else { - GL.glDisable(GL.GL_LIGHTING); - } - } - }); - } - - /** - * @see OpenGLTab#dispose() - */ - void dispose() { - super.dispose(); - GLU.gluDeleteQuadric(quadratic); - GLU.gluDeleteQuadric(disk); - if (states != null) { - for (int i = 0; i < states.length; i++) { - states [i].dispose(); - } - } - } - - /** - * Draws the logical AND of two shapes. - * - * @param a shape A - * @param b shape B - */ - void drawAandB(Shape a, Shape b) { - // draw parts of B that are inside A - drawAinsideB(a, b, GL.GL_BACK, GL.GL_NOTEQUAL); - // we do not want the following to show up - GL.glColorMask(false, false, false, false); - // turn on depth testing - GL.glEnable(GL.GL_DEPTH_TEST); - GL.glDepthFunc(GL.GL_ALWAYS); - // render the front face of B - b.draw(); - // reset the depth function - GL.glDepthFunc(GL.GL_LESS); - // draw parts of A that are inside B - drawAinsideB(b, a, GL.GL_BACK, GL.GL_NOTEQUAL); - } - - /** - * Draws the contents of one shape that appear within another. - * - * @param a the shape to draw - * @param b the constraining shape - * @param face - * @param test - */ - void drawAinsideB(Shape a, Shape b, int face, int test) { - // turn off the color buffer - GL.glColorMask(false, false, false, false); - // clear the stencil buffer - GL.glClearStencil(0); - GL.glEnable(GL.GL_DEPTH_TEST); - // set to proper Culling - GL.glCullFace(face); - // render shape A - a.draw(); - // set depth mask - GL.glDepthMask(false); - // enable stencil test - GL.glEnable(GL.GL_STENCIL_TEST); - GL.glStencilFunc(GL.GL_ALWAYS, 0, 0); - // set the stencil buffer to increment if the depth test passes - GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_INCR); - // turn on back face culling - GL.glCullFace(GL.GL_BACK); - // render B - b.draw(); - // set the stencil buffer to decrement if the depth test passes - GL.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_DECR); - // cull the front face - GL.glCullFace(GL.GL_FRONT); - // render B again - b.draw(); - // set depth mask - GL.glDepthMask(true); - GL.glColorMask(true, true, true, true); - // set the stencil buffer - GL.glStencilFunc(test, 0, 1); - // turn off depth testing - GL.glDisable(GL.GL_DEPTH_TEST); - // set to proper culling - GL.glCullFace(face); - // render A - a.draw(); - // disable stencil test - GL.glDisable(GL.GL_STENCIL_TEST); - } - - /** - * Draws the logical OR of two shapes. - * - * @param a shape A - * @param b shape B - */ - void drawAorB(Shape a, Shape b) { - GL.glEnable(GL.GL_DEPTH_TEST); - a.draw(); - b.draw(); - GL.glDisable(GL.GL_DEPTH_TEST); - } - - /** - * Draws one shape subtracted from another. - * - * @param a the base shape - * @param b the shape to subtract - */ - void drawAsubB(Shape a, Shape b) { - // draw back parts of B inside A - drawAinsideB(b, a, GL.GL_FRONT, GL.GL_NOTEQUAL); - // we do not want the following to show up - GL.glColorMask(false, false, false, false); - GL.glEnable(GL.GL_DEPTH_TEST); - // change the depth test to GL_ALWAYS - GL.glDepthFunc(GL.GL_ALWAYS); - // render the front face of B - a.draw(); - // reset the depth function - GL.glDepthFunc(GL.GL_LESS); - // draw front parts of A outside B - drawAinsideB(a, b, GL.GL_BACK, GL.GL_EQUAL); - } - - /** - * Draws the specifed shape. - * - * @param shape the shape to draw - */ - void drawShape(Shape shape) { - GL.glEnable(GL.GL_DEPTH_TEST); - shape.draw(); - GL.glDisable(GL.GL_DEPTH_TEST); - } - - /** - * @see OpenGLTab#getTabText() - */ - String getTabText() { - return "Area"; - } - - /** - * @see OpenGLTab#init() - */ - void init() { - if (!hasStencilSupport()) return; - - GL.glClearColor(1.0f, 1.0f, 1.0f, 1.0f); - float[] lightPos = { 0.0f, 5.0f, -10.0f, 1.0f }; - GL.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, lightPos); - quadratic = GLU.gluNewQuadric(); - disk = GLU.gluNewQuadric(); - - GL.glEnable(GL.GL_CULL_FACE); - GL.glEnable(GL.GL_LIST_MODE); - GL.glEnable(GL.GL_LIGHT0); - GL.glEnable(GL.GL_LIGHTING); - GL.glLightModeli(GL.GL_LIGHT_MODEL_TWO_SIDE, GL.GL_TRUE); - - final float[] sphereMaterial = { 0.0f, 1.0f, 0.0f, 1.0f }; - final float[] cylinderMaterial = { 1.0f, 0.0f, 0.0f, 1.0f }; - - Shape sphere = new Shape() { - public void draw() { - GL.glMaterialfv( - GL.GL_FRONT_AND_BACK, - GL.GL_AMBIENT_AND_DIFFUSE, - sphereMaterial); - GL.glColor3f(0.0f, 1.0f, 0.0f); - GLU.gluSphere(quadratic, 3, 32, 32); - } - }; - Shape cylinder = new Shape() { - public void draw() { - GL.glMaterialfv( - GL.GL_FRONT_AND_BACK, - GL.GL_AMBIENT_AND_DIFFUSE, - cylinderMaterial); - GL.glColor3f(1.0f, 0.0f, 0.0f); - GLU.gluQuadricOrientation(disk, GLU.GLU_INSIDE); - GL.glPushMatrix(); - GL.glTranslatef(1.0f, 1.0f, 0.0f); - GLU.gluDisk(disk, 0, 3, 32, 32); - GLU.gluCylinder(quadratic, 3, 3, 6, 32, 32); - GL.glPushMatrix(); - GL.glTranslatef(0.0f, 0.0f, 6.0f); - GLU.gluQuadricOrientation(disk, GLU.GLU_OUTSIDE); - GLU.gluDisk(disk, 0, 3, 32, 32); - GL.glPopMatrix(); - GL.glPopMatrix(); - } - }; - - // create the display lists and states - states = new State[6]; - int index = 1; - - GL.glNewList(index, GL.GL_COMPILE); - drawShape(cylinder); - GL.glEndList(); - states[0] = new State("Cylinder",index++); - - GL.glNewList(index, GL.GL_COMPILE); - drawShape(sphere); - GL.glEndList(); - states[1] = new State("Sphere",index++); - - GL.glNewList(index, GL.GL_COMPILE); - drawAorB(cylinder, sphere); - GL.glEndList(); - states[2] = new State("Cylinder OR Sphere",index++); - - GL.glNewList(index, GL.GL_COMPILE); - drawAandB(cylinder, sphere); - GL.glEndList(); - states[3] = new State("Cylinder AND Sphere",index++); - - GL.glNewList(index, GL.GL_COMPILE); - drawAsubB(cylinder, sphere); - GL.glEndList(); - states[4] = new State("Cylinder SUB Sphere",index++); - - GL.glNewList(index, GL.GL_COMPILE); - drawAsubB(sphere, cylinder); - GL.glEndList(); - states[5] = new State("Sphere SUB Cylinder",index++); - - currentState = states[0]; - } - - /** - * @see OpenGLTab#isStencilSupportNeeded - */ - boolean isStencilSupportNeeded() { - return true; - } - - /** - * @see OpenGLTab#renderScene() - */ - void renderScene() { - GL.glClear( - GL.GL_COLOR_BUFFER_BIT - | GL.GL_DEPTH_BUFFER_BIT - | GL.GL_STENCIL_BUFFER_BIT); - - GL.glLoadIdentity(); - GL.glTranslatef(xPos, yPos, zPos); - GL.glRotatef(xRot, 1.0f, 0.0f, 0.0f); - GL.glRotatef(yRot, 0.0f, 1.0f, 0.0f); - GL.glRotatef(zRot, 0.0f, 0.0f, 1.0f); - - currentState.display(); - } -} |