Work In Progress - demobox
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/*
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* Copyright (c) 2002-2005 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.test.opengl.awt;
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import java.awt.BorderLayout;
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import java.awt.Button;
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import java.awt.Frame;
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import java.awt.GridBagConstraints;
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import java.awt.GridBagLayout;
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import java.awt.Label;
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import java.awt.List;
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import java.awt.Panel;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.awt.event.ItemEvent;
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import java.awt.event.ItemListener;
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import java.awt.event.WindowAdapter;
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import java.awt.event.WindowEvent;
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import java.nio.FloatBuffer;
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import java.util.Enumeration;
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import java.util.Hashtable;
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import org.lwjgl.BufferUtils;
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import org.lwjgl.LWJGLException;
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import org.lwjgl.opengl.ARBTransposeMatrix;
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import org.lwjgl.opengl.AWTGLCanvas;
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import org.lwjgl.opengl.Display;
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import org.lwjgl.opengl.GL11;
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import org.lwjgl.opengl.GLContext;
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/**
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* $Id$
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* <p>
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* </p>
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* @version $Revision$
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* @author Brian Matzon <brian@matzon.dk>
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*/
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public class DemoBox extends Frame {
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/** GL canvas */
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private DemoBoxGLCanvas demoCanvas;
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/** Demo selection panel */
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private Panel selectionPanel;
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/** Hashtable of demos */
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private Hashtable selectableDemos;
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/**
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* Creates a new demo box instance
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*/
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public DemoBox() {
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selectableDemos = new Hashtable();
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selectableDemos.put("default", new NullDemoBox());
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selectableDemos.put("clear_color", new ClearColorDemoBox());
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selectableDemos.put("gears", new GearsDemoBox());
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}
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/**
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* @return
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*/
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public boolean initialize() {
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setTitle("LWJGL - Demo Box");
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setSize(640, 480);
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setLayout(new GridBagLayout());
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// Setup selection panel
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// =================================
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selectionPanel = new Panel();
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selectionPanel.setLayout(new BorderLayout());
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selectionPanel.add(new Label("Demo", Label.CENTER), BorderLayout.NORTH);
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Button fullScreen = new Button("Fullscreen");
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fullScreen.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent event) {
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toggleFullscreen();
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}
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});
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selectionPanel.add(fullScreen, BorderLayout.SOUTH);
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final List demos = new List();
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for (Enumeration e = selectableDemos.keys(); e.hasMoreElements();) {
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demos.add(e.nextElement().toString());
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}
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selectionPanel.add(demos, BorderLayout.CENTER);
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demos.addItemListener(new ItemListener() {
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public void itemStateChanged(ItemEvent event) {
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demoSelected(event.getItemSelectable().getSelectedObjects()[0].toString());
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}
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});
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GridBagConstraints gbc = new GridBagConstraints();
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gbc.gridx = 0;
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gbc.gridy = 0;
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gbc.fill = java.awt.GridBagConstraints.BOTH;
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gbc.weightx = 0.05;
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gbc.weighty = 1.0;
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add(selectionPanel, gbc);
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// ---------------------------------
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// setup demo canvas
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// =================================
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try {
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demoCanvas = new DemoBoxGLCanvas(this);
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gbc = new GridBagConstraints();
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gbc.gridx = 1;
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gbc.gridy = 0;
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gbc.fill = java.awt.GridBagConstraints.BOTH;
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gbc.weightx = 0.95;
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gbc.weighty = 1.0;
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add(demoCanvas, gbc);
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} catch (LWJGLException le) {
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le.printStackTrace();
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return false;
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}
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// ---------------------------------
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addWindowListener(new WindowAdapter() {
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public void windowClosing(WindowEvent e) {
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demoCanvas.destroy();
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dispose();
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}
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});
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//demos.select(0);
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//demoSelected(demos.getSelectedItem());
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return true;
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}
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public void updateFPS(float fps) {
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if(fps != -1) {
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setTitle("LWJGL - Demo Box (FPS: " + fps + ")");
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} else {
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setTitle("LWJGL - Demo Box");
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}
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}
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/**
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* Enter fullscreen mode for this demo
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*/
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protected void toggleFullscreen() {
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System.out.println("Toggle Fullscreen");
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}
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/**
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* Selected a demo
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* @param demo Name of demo that was selected
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*/
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protected void demoSelected(String demo) {
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System.out.println("Selecting demo: " + demo);
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demoCanvas.setActiveDemo((Demo) selectableDemos.get(demo));
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}
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/**
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* @param args
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* @throws LWJGLException
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*/
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public static void main(String[] args) throws LWJGLException {
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DemoBox demo = new DemoBox();
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demo.initialize();
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demo.setVisible(true);
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}
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/**
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* Interface for a demo
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*/
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public interface Demo {
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public boolean isInitialized();
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public boolean initialize();
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public void render();
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public void destroy();
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}
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/**
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*
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*/
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private class DemoBoxGLCanvas extends AWTGLCanvas implements Runnable {
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/** Parent demo box */
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DemoBox parent;
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/** Currently active demo */
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Demo activeDemo;
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/** last active demo */
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Demo lastActiveDemo;
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/** Render thread */
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private Thread renderThread;
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public DemoBoxGLCanvas(DemoBox parent) throws LWJGLException {
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super();
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this.parent = parent;
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}
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// FPS
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long startTime = 0;
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long fps = 0;
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protected void paintGL() {
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synchronized (this) {
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if (lastActiveDemo != null && lastActiveDemo != activeDemo) {
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lastActiveDemo.destroy();
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lastActiveDemo = null;
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if (activeDemo != null) {
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activeDemo.initialize();
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startTime = System.currentTimeMillis() + 5000;
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} else {
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parent.updateFPS(-1);
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}
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}
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if (activeDemo != null) {
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if(!activeDemo.isInitialized()) {
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activeDemo.initialize();
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}
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activeDemo.render();
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try {
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swapBuffers();
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} catch (LWJGLException le) {
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le.printStackTrace();
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}
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if (startTime > System.currentTimeMillis()) {
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fps++;
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} else {
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long timeUsed = 5000 + (startTime - System.currentTimeMillis());
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startTime = System.currentTimeMillis() + 5000;
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parent.updateFPS((fps / (timeUsed / 1000f)));
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fps = 0;
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}
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}
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}
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}
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public void destroy() {
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setActiveDemo(null);
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renderThread = null;
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}
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public void setActiveDemo(Demo activeDemo) {
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synchronized (this) {
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// setting no current demo
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if (activeDemo == null) {
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lastActiveDemo = this.activeDemo;
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this.activeDemo = null;
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return;
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}
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// setting to new demo
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lastActiveDemo = this.activeDemo;
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this.activeDemo = activeDemo;
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}
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if (renderThread == null) {
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renderThread = new Thread(this);
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renderThread.setName("DemoBox-Renderer");
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renderThread.start();
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}
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}
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public DemoBoxGLCanvas() throws LWJGLException {
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super();
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}
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public void run() {
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while (renderThread != null) {
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// check for change of demo
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synchronized (this) {
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// if no demo set, just sleep
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if (activeDemo == null) {
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sleep(1000);
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} else {
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// we have a demo!
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sleep(16);
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repaint();
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}
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}
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}
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System.out.println("dead");
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}
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private void sleep(long time) {
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try {
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Thread.sleep(time);
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} catch (InterruptedException inte) {
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}
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}
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}
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// Demo box demo
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// ========================================================
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public class ClearColorDemoBox implements Demo {
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private boolean initialized;
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int direction = 1;
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float color;
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public boolean isInitialized() {
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return initialized;
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}
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public boolean initialize() {
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return initialized = true;
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}
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public void render() {
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GL11.glClearColor(color, color, color, 1f);
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GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
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color += direction * .05f;
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if (color > 1f) {
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color = 1f;
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direction = -1 * direction;
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} else if (color < 0f) {
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direction = -1 * direction;
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color = 0f;
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}
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}
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public void destroy() {
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initialized = false;
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}
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}
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// --------------------------------------------------------
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// Demo box demo
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// ========================================================
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public class NullDemoBox implements Demo {
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private boolean initialized;
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public boolean isInitialized() {
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return initialized;
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}
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public boolean initialize() {
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GL11.glClearColor(0, 0, 0, 1f);
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return true;
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}
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public void render() {
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GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
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}
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public void destroy() {
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initialized = false;
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}
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}
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// --------------------------------------------------------
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// Demo box demo
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// ========================================================
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public class GearsDemoBox implements Demo {
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private boolean initialized;
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private float view_rotx = 20.0f;
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private float view_roty = 30.0f;
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private float view_rotz = 0.0f;
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private int gear1;
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private int gear2;
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private int gear3;
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private float angle = 0.0f;
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public boolean isInitialized() {
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return initialized;
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}
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public boolean initialize() {
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// setup ogl
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FloatBuffer pos = BufferUtils.createFloatBuffer(4).put(new float[] { 5.0f, 5.0f, 10.0f, 0.0f});
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FloatBuffer red = BufferUtils.createFloatBuffer(4).put(new float[] { 0.8f, 0.1f, 0.0f, 1.0f});
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FloatBuffer green = BufferUtils.createFloatBuffer(4).put(new float[] { 0.0f, 0.8f, 0.2f, 1.0f});
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FloatBuffer blue = BufferUtils.createFloatBuffer(4).put(new float[] { 0.2f, 0.2f, 1.0f, 1.0f});
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pos.flip();
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red.flip();
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green.flip();
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blue.flip();
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GL11.glClearColor(0, 0, 0, 1f);
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GL11.glLight(GL11.GL_LIGHT0, GL11.GL_POSITION, pos);
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GL11.glEnable(GL11.GL_CULL_FACE);
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GL11.glEnable(GL11.GL_LIGHTING);
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GL11.glEnable(GL11.GL_LIGHT0);
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GL11.glEnable(GL11.GL_DEPTH_TEST);
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/* make the gears */
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gear1 = GL11.glGenLists(1);
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GL11.glNewList(gear1, GL11.GL_COMPILE);
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GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, red);
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gear(1.0f, 4.0f, 1.0f, 20, 0.7f);
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GL11.glEndList();
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gear2 = GL11.glGenLists(1);
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GL11.glNewList(gear2, GL11.GL_COMPILE);
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GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, green);
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gear(0.5f, 2.0f, 2.0f, 10, 0.7f);
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GL11.glEndList();
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gear3 = GL11.glGenLists(1);
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GL11.glNewList(gear3, GL11.GL_COMPILE);
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GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, blue);
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gear(1.3f, 2.0f, 0.5f, 10, 0.7f);
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GL11.glEndList();
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GL11.glEnable(GL11.GL_NORMALIZE);
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GL11.glMatrixMode(GL11.GL_PROJECTION);
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System.err.println("GL_VENDOR: " + GL11.glGetString(GL11.GL_VENDOR));
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System.err.println("GL_RENDERER: " + GL11.glGetString(GL11.GL_RENDERER));
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System.err.println("GL_VERSION: " + GL11.glGetString(GL11.GL_VERSION));
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System.err.println();
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System.err.println("glLoadTransposeMatrixfARB() supported: " + GLContext.getCapabilities().GL_ARB_transpose_matrix);
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if (!GLContext.getCapabilities().GL_ARB_transpose_matrix) {
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// --- not using extensions
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GL11.glLoadIdentity();
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} else {
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// --- using extensions
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final FloatBuffer identityTranspose = BufferUtils.createFloatBuffer(16).put(
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new float[] { 1, 0, 0, 0, 0, 1, 0, 0,
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0, 0, 1, 0, 0, 0, 0, 1});
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identityTranspose.flip();
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ARBTransposeMatrix.glLoadTransposeMatrixARB(identityTranspose);
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}
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float h = (float) 300 / (float) 300;
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GL11.glFrustum(-1.0f, 1.0f, -h, h, 5.0f, 60.0f);
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GL11.glMatrixMode(GL11.GL_MODELVIEW);
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GL11.glLoadIdentity();
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GL11.glTranslatef(0.0f, 0.0f, -40.0f);
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return initialized = true;
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}
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public void render() {
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angle += 2.0f;
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GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
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GL11.glPushMatrix();
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GL11.glRotatef(view_rotx, 1.0f, 0.0f, 0.0f);
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GL11.glRotatef(view_roty, 0.0f, 1.0f, 0.0f);
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GL11.glRotatef(view_rotz, 0.0f, 0.0f, 1.0f);
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GL11.glPushMatrix();
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GL11.glTranslatef(-3.0f, -2.0f, 0.0f);
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GL11.glRotatef(angle, 0.0f, 0.0f, 1.0f);
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GL11.glCallList(gear1);
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GL11.glPopMatrix();
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GL11.glPushMatrix();
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GL11.glTranslatef(3.1f, -2.0f, 0.0f);
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GL11.glRotatef(-2.0f * angle - 9.0f, 0.0f, 0.0f, 1.0f);
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GL11.glCallList(gear2);
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GL11.glPopMatrix();
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GL11.glPushMatrix();
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GL11.glTranslatef(-3.1f, 4.2f, 0.0f);
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GL11.glRotatef(-2.0f * angle - 25.0f, 0.0f, 0.0f, 1.0f);
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GL11.glCallList(gear3);
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GL11.glPopMatrix();
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GL11.glPopMatrix();
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}
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/**
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* Draw a gear wheel. You'll probably want to call this function when
|
||||
* building a display list since we do a lot of trig here.
|
||||
*
|
||||
* @param inner_radius radius of hole at center
|
||||
* @param outer_radius radius at center of teeth
|
||||
* @param width width of gear
|
||||
* @param teeth number of teeth
|
||||
* @param tooth_depth depth of tooth
|
||||
*/
|
||||
private void gear(float inner_radius, float outer_radius, float width, int teeth, float tooth_depth) {
|
||||
int i;
|
||||
float r0, r1, r2;
|
||||
float angle, da;
|
||||
float u, v, len;
|
||||
|
||||
r0 = inner_radius;
|
||||
r1 = outer_radius - tooth_depth / 2.0f;
|
||||
r2 = outer_radius + tooth_depth / 2.0f;
|
||||
|
||||
da = 2.0f * (float) Math.PI / teeth / 4.0f;
|
||||
|
||||
GL11.glShadeModel(GL11.GL_FLAT);
|
||||
|
||||
GL11.glNormal3f(0.0f, 0.0f, 1.0f);
|
||||
|
||||
/* draw front face */
|
||||
GL11.glBegin(GL11.GL_QUAD_STRIP);
|
||||
for (i = 0; i <= teeth; i++) {
|
||||
angle = i * 2.0f * (float) Math.PI / teeth;
|
||||
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
|
||||
if (i < teeth) {
|
||||
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3.0f * da), r1 * (float) Math.sin(angle + 3.0f * da),
|
||||
width * 0.5f);
|
||||
}
|
||||
}
|
||||
GL11.glEnd();
|
||||
|
||||
/* draw front sides of teeth */
|
||||
GL11.glBegin(GL11.GL_QUADS);
|
||||
for (i = 0; i < teeth; i++) {
|
||||
angle = i * 2.0f * (float) Math.PI / teeth;
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
|
||||
GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), width * 0.5f);
|
||||
GL11.glVertex3f(r2 * (float) Math.cos(angle + 2.0f * da), r2 * (float) Math.sin(angle + 2.0f * da), width * 0.5f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3.0f * da), r1 * (float) Math.sin(angle + 3.0f * da), width * 0.5f);
|
||||
}
|
||||
GL11.glEnd();
|
||||
|
||||
/* draw back face */
|
||||
GL11.glBegin(GL11.GL_QUAD_STRIP);
|
||||
for (i = 0; i <= teeth; i++) {
|
||||
angle = i * 2.0f * (float) Math.PI / teeth;
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
|
||||
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
|
||||
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
|
||||
}
|
||||
GL11.glEnd();
|
||||
|
||||
/* draw back sides of teeth */
|
||||
GL11.glBegin(GL11.GL_QUADS);
|
||||
for (i = 0; i < teeth; i++) {
|
||||
angle = i * 2.0f * (float) Math.PI / teeth;
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
|
||||
GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), -width * 0.5f);
|
||||
GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), -width * 0.5f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
|
||||
}
|
||||
GL11.glEnd();
|
||||
|
||||
/* draw outward faces of teeth */
|
||||
GL11.glBegin(GL11.GL_QUAD_STRIP);
|
||||
for (i = 0; i < teeth; i++) {
|
||||
angle = i * 2.0f * (float) Math.PI / teeth;
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
|
||||
u = r2 * (float) Math.cos(angle + da) - r1 * (float) Math.cos(angle);
|
||||
v = r2 * (float) Math.sin(angle + da) - r1 * (float) Math.sin(angle);
|
||||
len = (float) Math.sqrt(u * u + v * v);
|
||||
u /= len;
|
||||
v /= len;
|
||||
GL11.glNormal3f(v, -u, 0.0f);
|
||||
GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), width * 0.5f);
|
||||
GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), -width * 0.5f);
|
||||
GL11.glNormal3f((float) Math.cos(angle), (float) Math.sin(angle), 0.0f);
|
||||
GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), width * 0.5f);
|
||||
GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), -width * 0.5f);
|
||||
u = r1 * (float) Math.cos(angle + 3 * da) - r2 * (float) Math.cos(angle + 2 * da);
|
||||
v = r1 * (float) Math.sin(angle + 3 * da) - r2 * (float) Math.sin(angle + 2 * da);
|
||||
GL11.glNormal3f(v, -u, 0.0f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), width * 0.5f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
|
||||
GL11.glNormal3f((float) Math.cos(angle), (float) Math.sin(angle), 0.0f);
|
||||
}
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(0), r1 * (float) Math.sin(0), width * 0.5f);
|
||||
GL11.glVertex3f(r1 * (float) Math.cos(0), r1 * (float) Math.sin(0), -width * 0.5f);
|
||||
GL11.glEnd();
|
||||
|
||||
GL11.glShadeModel(GL11.GL_SMOOTH);
|
||||
|
||||
/* draw inside radius cylinder */
|
||||
GL11.glBegin(GL11.GL_QUAD_STRIP);
|
||||
for (i = 0; i <= teeth; i++) {
|
||||
angle = i * 2.0f * (float) Math.PI / teeth;
|
||||
GL11.glNormal3f(-(float) Math.cos(angle), -(float) Math.sin(angle), 0.0f);
|
||||
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
|
||||
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
|
||||
}
|
||||
GL11.glEnd();
|
||||
}
|
||||
|
||||
public void destroy() {
|
||||
GL11.glDeleteLists(gear1, 1);
|
||||
GL11.glDeleteLists(gear2, 1);
|
||||
GL11.glDeleteLists(gear3, 1);
|
||||
initialized = false;
|
||||
}
|
||||
}
|
||||
// --------------------------------------------------------
|
||||
}
|
Loading…
Reference in New Issue