KeyEvent issue

OpenGL Development JOGL Development
#1

Can somebody help me with this? It is probabely not a JOGL-issue.
I have the following program

Doublebuf.java


import java.awt.event.*;
import javax.swing.*;

import javax.media.opengl.*;
import com.sun.opengl.util.*;

public class Doublebuf{
	public static void main(String args[]){
		JFrame frame = new JFrame("Hello");
		GLJPanel panel = new GLJPanel();
		
		panel.addGLEventListener(new DoublebufRenderer());
				
		final Animator animator = new Animator(panel);
		
		frame.addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent e){
				animator.stop();
				System.exit(0);
			}
		});
		
		frame.add(panel);
		frame.setVisible(true);
		frame.setBounds(100, 100, 250+frame.getInsets().left+frame.getInsets().right, 250+frame.getInsets().top+frame.getInsets().bottom);
		animator.start();
	}
}

DoublebufRenderer.java


import java.awt.event.*;

import javax.media.opengl.*;

public class DoublebufRenderer implements GLEventListener{
	private GL gl;
	static private boolean spinning=false;
	static private float spin=0.0f;
	
	public void init(GLAutoDrawable drawable){
		this.gl=drawable.getGL();
		drawable.setGL(new DebugGL(drawable.getGL()));
		gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
		drawable.addMouseListener(new MouseHandler());
		drawable.addKeyListener(new KeyHandler());
	}
	
	public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height){
		gl.glMatrixMode(GL.GL_PROJECTION);
		gl.glLoadIdentity();
		gl.glOrtho(50.0, -50.0, 50.0, -50.0, -1.0, 1.0);
	}
	
	public void display(GLAutoDrawable drawable){
		gl.glClear(GL.GL_COLOR_BUFFER_BIT);
		gl.glColor3f(1.0f, 1.0f, 1.0f);
		gl.glPushMatrix();
		gl.glRotatef(spin, 0, 0, 1);
		gl.glRectf(-25.0f, -25.0f, 25.0f, 25.0f);
		gl.glPopMatrix();
		gl.glFlush();
		if(spinning==true){
			spinDisplay();
		}
	}
	
	public void displayChanged(GLAutoDrawable drawable, boolean moseChanged, boolean deviceChanged){
	}
	
	private void spinDisplay(){
		spin=spin+2.0f;
		if(spin>360.0f) spin=spin-360.0f;
	}
	
	class MouseHandler extends MouseAdapter{
		public void mouseClicked(MouseEvent e){
			if(e.isMetaDown()){
				spinning=false;
				}
			else{
				spinning=true;
			}
		}
	}
		
	class KeyHandler extends KeyAdapter{
		public void keyPressed(KeyEvent e){
			System.out.println("Test");
         	        if (e.getKeyCode() == KeyEvent.VK_ESCAPE)
		        System.exit(0);
		}
	
	}
	
}

When I compile, everything seems to be normal, but when I run the program, the key events don’t work (I don’t get a “test” printed out) while the mouse reacts as expected.

#2

Have you tried left-clicking in the GLJPanel to make sure it has the focus?

#3

Yes, I did do that. I tried changing an example. When I change GLJPanel in to GLCanvas, everythings seems to work normal!?
Must be something I missed. 8)

#4

Try adding a call to panel.setFocusable(true). I have no idea why this is necessary, but it seems to fix the problem.

#5

That did it thx.