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package demos.applets;
import java.lang.reflect.*;
import javax.media.nativewindow.NativeWindow;
import javax.media.opengl.*;
import com.jogamp.opengl.util.*;
import com.jogamp.newt.event.*;
import com.jogamp.newt.opengl.GLWindow;
/** Shows how to deploy an applet using JOGL. This demo must be
referenced from a web page via an <applet> tag. */
public class JOGLNewtAppletBase extends WindowAdapter implements KeyListener, MouseListener, GLEventListener {
String glEventListenerClazzName;
int glSwapInterval;
boolean glDebug;
boolean glTrace;
GLEventListener glEventListener = null;
GLWindow glWindow = null;
Animator glAnimator=null;
boolean isValid = false;
NativeWindow awtParent;
public JOGLNewtAppletBase(String glEventListenerClazzName,
int glSwapInterval,
boolean glDebug,
boolean glTrace) {
this.glEventListenerClazzName=glEventListenerClazzName;
this.glSwapInterval=glSwapInterval;
this.glDebug = glDebug;
this.glTrace = glTrace;
}
public GLEventListener getGLEventListener() { return glEventListener; }
public GLWindow getGLWindow() { return glWindow; }
public Animator getGLAnimator() { return glAnimator; }
public boolean isValid() { return isValid; }
public static boolean str2Bool(String str, boolean def) {
if(null==str) return def;
try {
return Boolean.valueOf(str).booleanValue();
} catch (Exception ex) { ex.printStackTrace(); }
return def;
}
public static int str2Int(String str, int def) {
if(null==str) return def;
try {
return Integer.parseInt(str);
} catch (Exception ex) { ex.printStackTrace(); }
return def;
}
public static GLEventListener createInstance(String clazzName) {
Object instance = null;
try {
Class clazz = Class.forName(clazzName);
instance = clazz.newInstance();
} catch (Throwable t) {
t.printStackTrace();
throw new RuntimeException("Error while instantiating demo: "+clazzName);
}
if( null == instance ) {
throw new RuntimeException("Null GLEventListener: "+clazzName);
}
if( !(instance instanceof GLEventListener) ) {
throw new RuntimeException("Not a GLEventListener: "+clazzName);
}
return (GLEventListener) instance;
}
public static boolean setField(Object instance, String fieldName, Object value) {
try {
Field f = instance.getClass().getField(fieldName);
if(f.getType().isInstance(value)) {
f.set(instance, value);
return true;
} else {
System.out.println(instance.getClass()+" '"+fieldName+"' field not assignable with "+value.getClass()+", it's a: "+f.getType());
}
} catch (NoSuchFieldException nsfe) {
System.out.println(instance.getClass()+" has no '"+fieldName+"' field");
} catch (Throwable t) {
t.printStackTrace();
}
return false;
}
public void init(GLWindow glWindow) {
init(Thread.currentThread().getThreadGroup(), glWindow);
}
public void init(ThreadGroup tg, GLWindow glWindow) {
this.glWindow = glWindow;
glEventListener = createInstance(glEventListenerClazzName);
try {
if(!setField(glEventListener, "window", glWindow)) {
setField(glEventListener, "glWindow", glWindow);
}
glWindow.addGLEventListener(this);
glWindow.addGLEventListener(glEventListener);
if(glEventListener instanceof WindowListener) {
glWindow.addWindowListener((WindowListener)glEventListener);
}
glWindow.addWindowListener(this);
if(glEventListener instanceof MouseListener) {
glWindow.addMouseListener((MouseListener)glEventListener);
}
glWindow.addMouseListener(this);
if(glEventListener instanceof KeyListener) {
glWindow.addKeyListener((KeyListener)glEventListener);
}
glWindow.addKeyListener(this);
glWindow.setUpdateFPSFrames(FPSCounter.DEFAULT_FRAMES_PER_INTERVAL, System.err);
// glAnimator = new FPSAnimator(canvas, 60);
glAnimator = new Animator(tg, glWindow);
} catch (Throwable t) {
throw new RuntimeException(t);
}
isValid = true;
}
public void start() {
if(isValid) {
glWindow.setVisible(true);
glAnimator.start();
awtParent = glWindow.getParent();
if(null==awtParent) {
throw new RuntimeException("Parent of GLWindow is null: "+glWindow);
}
}
}
public void stop() {
if(null!=glAnimator) {
glAnimator.stop();
glWindow.setVisible(false);
}
}
public void destroy() {
isValid = false;
if(null!=glAnimator) {
glAnimator.stop();
glAnimator.remove(glWindow);
glAnimator=null;
}
if(null!=glWindow) {
glWindow.destroy();
glWindow=null;
}
}
// ***********************************************************************************
// ***********************************************************************************
// ***********************************************************************************
public void init(GLAutoDrawable drawable) {
GL _gl = drawable.getGL();
if(glDebug) {
try {
_gl = _gl.getContext().setGL( GLPipelineFactory.create("javax.media.opengl.Debug", null, _gl, null) );
} catch (Exception e) {e.printStackTrace();}
}
if(glTrace) {
try {
// Trace ..
_gl = _gl.getContext().setGL( GLPipelineFactory.create("javax.media.opengl.Trace", null, _gl, new Object[] { System.err } ) );
} catch (Exception e) {e.printStackTrace();}
}
if(glSwapInterval>=0) {
_gl.setSwapInterval(glSwapInterval);
}
}
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
}
public void display(GLAutoDrawable drawable) {
}
public void dispose(GLAutoDrawable drawable) {
}
// ***********************************************************************************
// ***********************************************************************************
// ***********************************************************************************
public void keyPressed(KeyEvent e) {
}
public void keyReleased(KeyEvent e) {
}
public void keyTyped(KeyEvent e) {
if(e.getKeyChar()=='d') {
glWindow.setUndecorated(!glWindow.isUndecorated());
} if(e.getKeyChar()=='f') {
glWindow.setFullscreen(!glWindow.isFullscreen());
} else if(e.getKeyChar()=='r') {
if(null == glWindow.getParent()) {
glWindow.reparentWindow(awtParent);
} else {
glWindow.reparentWindow(null);
}
}
}
// ***********************************************************************************
// ***********************************************************************************
// ***********************************************************************************
public void mouseClicked(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
public void mouseMoved(MouseEvent e) {
}
public void mouseDragged(MouseEvent e) {
}
public void mouseWheelMoved(MouseEvent e) {
}
}
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