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/**
* @(#) TriangleRotate.java
* @(#) author: Joe Zimmerman (converted to Java by Sven Goethel)
*/
/* This program is free software under the license of LGPL */
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.util.*;
import java.io.*;
import java.util.*;
import gl4java.*;
import gl4java.drawable.*;
import gl4java.awt.*;
import gl4java.applet.*;
public class TriangleRotate extends SimpleGLAnimApplet1
{
public void init()
{
GLContext.gljNativeDebug = true;
GLContext.gljThreadDebug = false;
GLContext.gljClassDebug = true;
super.init();
Dimension d = getSize();
System.out.println("applet size: "+d);
GLCapabilities caps = new GLCapabilities();
canvas =
GLDrawableFactory.getFactory().createGLAnimCanvas(caps, d.width, d.height);
gldemo demo = new gldemo();
canvas.addGLEventListener(demo);
add("Center", canvas);
}
public static void main( String args[] ) {
GLContext.gljNativeDebug = true;
GLContext.gljClassDebug = true;
TriangleRotate applet =
new TriangleRotate();
Frame f = new Frame("TriangleRotate");
f.addWindowListener( new WindowAdapter()
{
public void windowClosed(WindowEvent e)
{
System.exit(0);
}
public void windowClosing(WindowEvent e)
{
windowClosed(e);
}
}
);
f.setLayout(new BorderLayout());
f.add("Center", applet);
applet.setSize(500,300);
applet.init();
applet.start();
Dimension ps = applet.getPreferredSize();
f.setBounds(-100,-100,99,99);
f.setVisible(true);
f.setVisible(false);
f.setVisible(true);
Insets i = f.getInsets();
f.setBounds(0,0,
ps.width+i.left+i.right,
ps.height+i.top+i.bottom);
f.setVisible(true);
}
private class gldemo
implements GLEventListener
{
float rotate;
float LightAmbient[] = { 0.75f, 0.75f, 0.75f, 1.5f};
float LightDiffuse[] = { 1.0f, 1.0f, 1.0f, 0.9f};
float LightSpecular[] = { 0.8f, 0.8f, 0.8f, 1.0f};
private GLFunc gl;
private GLUFunc glu;
private GLContext glj;
public gldemo()
{
}
public void cleanup(GLDrawable drawable)
{
}
public void init(GLDrawable drawable)
{
gl = drawable.getGL();
glu = drawable.getGLU();
glj = drawable.getGLContext();
//drawable.reshape(getSize().width, getSize().height);
gl.glEnable(GL_LIGHT0);
gl.glLightfv(GL_LIGHT0, GL_AMBIENT, LightAmbient);
gl.glLightfv(GL_LIGHT0, GL_DIFFUSE, LightDiffuse);
gl.glLightfv(GL_LIGHT0, GL_SPECULAR, LightSpecular);
glj.gljCheckGL();
}
public void reshape(gl4java.drawable.GLDrawable d,int width,int height)
{
gl.glMatrixMode(GL_PROJECTION);
gl.glLoadIdentity();
glu.gluPerspective(45, (float)width/(float)height, 1, 700);
gl.glMatrixMode(GL_MODELVIEW);
gl.glLoadIdentity();
gl.glViewport(0,0,width,height);
}
public void display(GLDrawable drawable)
{
gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
gl.glMatrixMode(GL_MODELVIEW);
gl.glLoadIdentity();
gl.glColor4f(1, 1, 1, 1);
rotate++;
gl.glTranslatef(0, 0, -10);
gl.glRotatef(rotate, 0, 1, 0);
gl.glBegin(GL_POLYGON);
gl.glNormal3f( 1, 0, 0);
gl.glVertex3f( 0, 1, 0);
gl.glVertex3f(-1, -1, 0);
gl.glVertex3f( 1, -1, 0);
gl.glEnd();
glj.gljCheckGL();
}
public void preDisplay(GLDrawable drawable)
{
}
public void postDisplay(GLDrawable drawable)
{
}
}
}
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