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Hi, I have a problem. I want to overlay on a triangle a java2d text or something to draw, but now it isn't work. Here is my code:
public final class myclass extends otherclass implements GLEventListener{
private final Color TRANSPARENT_BLACK = new Color(0.0f, 0.0f, 0.0f, 0.0f);
private Overlay overlay;
// World view.
private GLCanvas world;
@Override
public void init(GLAutoDrawable drawable)
{
// TODO Auto-generated method stub
final GL2 gl = drawable.getGL().getGL2();
this.overlay = new Overlay(drawable);
}
@Override
public void dispose(GLAutoDrawable drawable)
{
// TODO Auto-generated method stub
this.overlay = null;
}
@Override
public void display(GLAutoDrawable drawable){
final GL2 gl = drawable.getGL().getGL2();
Graphics2D g2d = this.overlay.createGraphics();
gl.glLoadIdentity();
gl.glTranslatef(-1.5f,0.0f,-6.0f);
gl.glBegin(GL2.GL_TRIANGLES);
gl.glColor3f(0,1,1);
gl.glVertex3f(0.0f,1.0f,0.0f);
gl.glColor3f(0,1,0);
gl.glVertex3f(-1.0f, -1.0f, 0.0f);
gl.glColor3f(1,1,0);
gl.glVertex3f(1.0f,-1.0f,0.0f);
gl.glFlush();
g2d.setColor(Color.RED);
g2d.setComposite(AlphaComposite.Src);
g2d.drawString("something", 25, 120);
g2d.fillRect(30, 20, 50, 50);
this.overlay.drawAll();
g2d.dispose();
}
@Override
public void reshape(GLAutoDrawable drawable, int x, int y, int width,
int height)
{
// TODO Auto-generated method stub
final GL2 gl = drawable.getGL().getGL2();
/*
if(height<=0) height = 1;
final float h = (float) width/(float)height;
gl.glViewport(0, 0, width, height);
gl.glMatrixMode(GL2.GL_PROJECTION);
gl.glLoadIdentity();
this.glu.gluPerspective(45.0f,h,1.0,20.0);
gl.glMatrixMode(GL2.GL_MODELVIEW);
gl.glLoadIdentity();
*/
}
public static void main(String[] args){
int windowSize = 600;
final JFrame frame = new JFrame ("my jogl pj");
GLCapabilities capabilities = new GLCapabilities (null);
final GLCanvas glcanvas = new GLCanvas(capabilities);
myclass r = new myclass();
glcanvas.addGLEventListener(r);
glcanvas.setSize(600,600);
frame.setSize(windowSize, windowSize);
frame.add(glcanvas);
myclass myobj = new myclass();
final Animator animator = new Animator(glcanvas);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
new Thread(new Runnable() {
@Override
public void run() {
animator.stop();
System.exit(0);
}
}).start();
}
});
frame.setVisible(true);
animator.start();
}//-- fine main
}
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