opengl.zip_opengl java

import java.awt.Frame; import java.awt.BorderLayout; import java.awt.Canvas; import java.awt.Label; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.awt.Graphics; import javax.swing.Timer; public class MyWindow extends Canvas implements ActionListener { static { // Load the library that contains the paint code. System.loadLibrary("MyWindow"); } public final static int TIMER_SECONDS = 100; public static void main( String[] argv ) { Frame f = new Frame(); f.setSize(300,400); f.setLayout(new BorderLayout()); f.setTitle("OpenGL from Java"); MyWindow w = new MyWindow(); f.add(w,BorderLayout.CENTER); f.add(new Label("Hello World"),BorderLayout.SOUTH); f.setBounds(300,300,300,300); f.setVisible(true); } private boolean bInitOpenGL = false; public void actionPerformed(ActionEvent evt) { if(bInitOpenGL == false) { bInitOpenGL = true; initializeOpenGL(); } paintOpenGL(); } public void addNotify() { super.addNotify(); javax.swing.Timer timer = new Timer(TIMER_SECONDS,this); timer.start(); } public void removeNotify() { super.removeNotify(); cleanupOpenGL(); } // native entry point for Painting public native void paintOpenGL(); // native entry point for enabling OpenGL calls. public native void initializeOpenGL(); // native entry point for disabling OpenGL calls. public native void cleanupOpenGL(); }