package test;

import java.awt.BorderLayout;
import javax.media.opengl.*;
import javax.swing.*;

public class SimpleTest implements GLEventListener
{
  public SimpleTest() { super(); }

  public void init(GLAutoDrawable drw)
  {
    drw.setGL(new DebugGL(drw.getGL()));
    GL gl = drw.getGL();

    gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
    gl.glLoadIdentity();
  } // init

  public void display(GLAutoDrawable drw)
  {
    GL gl = drw.getGL();

    gl.glColor3f(1.0F, 0.4F, 0.0F);

    gl.glBegin(GL.GL_TRIANGLES);
      gl.glVertex3f(0.0F, 0.0F, 0.0F);
      gl.glVertex3f(1.0F, 0.0F, 0.0F);
      gl.glVertex3f(1.0F, 1.0F, 0.0F);
    gl.glEnd();
  } // display

  public void reshape(GLAutoDrawable drw, int x, int y, int wid, int hite)
  {
  } // reshape

  public void displayChanged(GLAutoDrawable drw, boolean modeCh, boolean devCh)
  {
  } // displayChanged

  public static void main(String[] argv)
  {
    GLCapabilities glCaps = new GLCapabilities();

    // This line fails with the current (1.1.1.1-rc8 - February 22) build,
    // but works if GLCanvas is changed to GLJPanel.  With the 1.1.0
    // release build, it works either way.  When it fails, the JFrame, when
    // first made visible, crashes with an IllegalArgumentException deep
    // inside the GL class heirarchy.
    GLCanvas canv = new GLCanvas(glCaps);

    final JFrame fram = new JFrame("TestFrame");
    fram.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    fram.setSize(640, 480);
    fram.getContentPane().add(canv, BorderLayout.CENTER);
    canv.addGLEventListener(new SimpleTest());
    SwingUtilities.invokeLater(new Runnable()
    {
      public void run()
      {
        fram.setVisible(true);
      } // run
    });
  } // main
} // SimpleTest