package com.gmail.bernabe.laurent.j2se.tet_jogl;

import javax.media.opengl.GL2;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.awt.GLCanvas;
import javax.media.opengl.glu.GLU;
import javax.media.opengl.glu.gl2.GLUgl2;

public class MyGlComponent extends GLCanvas implements GLEventListener {

	public MyGlComponent(){
		addGLEventListener(this);
	}
	
	@Override
	public void init(GLAutoDrawable drawable) {
		GL2 gl = drawable.getGL().getGL2();
		gl.glEnable(GL2.GL_DEPTH_TEST);
		gl.glClearDepth(1.0);
		glu = GLUgl2.createGLU();
	}

	@Override
	public void dispose(GLAutoDrawable drawable) {
		
	}

	@Override
	public void display(GLAutoDrawable drawable) {
		GL2 gl = drawable.getGL().getGL2();
		gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
		gl.glLoadIdentity();
		
		glu.gluLookAt(
				0f, 0f, 6f,
				0f, 0f, 0f,
				0f, 1f, 0f);
		
		GLCube.draw(gl);
		
		gl.glRotatef(currentAngle, 0f, 1f, 0f);
		currentAngle += 0.15f;
		currentAngle %= 360f;
	}

	@Override
	public void reshape(GLAutoDrawable drawable, int x, int y, int width,
			int height) {
		GL2 gl = drawable.getGL().getGL2();
		gl.glViewport(0, 0, width, height);
		gl.glMatrixMode(GL2.GL_PROJECTION);
		gl.glLoadIdentity();
		glu.gluPerspective(60f, ((float) width)/height, 0.1f, 10f);
		gl.glMatrixMode(GL2.GL_MODELVIEW);
	}

	private GLU glu = new GLUgl2();
	private static final long serialVersionUID = 3439571444867931066L;
	
	private float currentAngle = 0f;
	
}