GLEventListener JavaFX Style

So far we have perverted the JavaFX Frame to be more JOGL Friendly. Now we can make the GLEventListener more JavaFX Friendly.

First a bit of warning and history. The GLEventListener defines a method called init. Init, in compiled JavaFX, is a reserved word and thus we can not make functions called init. My solution to this problem was to implement GLEventListener using an abstract class.

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package net.saga.javafx3d;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLEventListener;
/**
 *
 * @author summers
 */
public abstract class AbstractJavaFXGLEventListener implements GLEventListener{
    @Override
    public final  void init(GLAutoDrawable drawable) {
      _init(drawable);
    }
    public abstract void _init(GLAutoDrawable drawable);
}

While this does seem (deservedly) cheesy, I implemented the init method and had it call a safe method, _init.

Now we implement the JavaFXGLEventListener.

/*
 * JavaFXGLEventListener.fx
 *
 * Created on Aug 3, 2008, 11:30:02 AM
 */
package net.saga.javafx3d;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GL;
/**
 * @author summers
 */
public class JavaFXGLEventListener extends AbstractJavaFXGLEventListener {
    public function display(drawable: GLAutoDrawable) : Void {
        onDisplay(drawable);
    }
    public function displayChanged( drawable :GLAutoDrawable, modeChanged: Boolean, deviceChanged: Boolean) : Void{
        onDisplayChanged(drawable,modeChanged,deviceChanged);
    }
    public function _init(drawable: GLAutoDrawable ) : Void {
      onInit(drawable);
    }
    public function reshape(drawable: GLAutoDrawable , x: Integer, y:Integer, width:Integer, height:Integer) : Void{
        onReshape(drawable,x,y,width,height);
    }
    public attribute onReshape : function (drawable: GLAutoDrawable , x: Integer, y:Integer, width:Integer, height:Integer) : Void =
        function (drawable: GLAutoDrawable , x: Integer, y:Integer, width:Integer, height:Integer) : Void {
            drawable.getGL().glClear(GL.GL_COLOR_BUFFER_BIT);
            drawable.getGL().glClear(GL.GL_DEPTH_BUFFER_BIT);
        }
    public attribute onInit : function (drawable: GLAutoDrawable ) : Void =
        function (drawable: GLAutoDrawable ) : Void {
          var gl:GL = drawable.getGL();
          gl.glClearColor(0.0.floatValue(), 1.0.floatValue(), 0.0.floatValue(),1.0.floatValue());
          gl.glClear(GL.GL_COLOR_BUFFER_BIT);
          gl.glClear(GL.GL_DEPTH_BUFFER_BIT);
          gl.glColor3d(1.0, 0.0, 0.0);
        };
    public attribute onDisplay : function (drawable: GLAutoDrawable) : Void =
        function (drawable) {
        };
    public attribute onDisplayChanged : function ( drawable :GLAutoDrawable, modeChanged: Boolean, deviceChanged: Boolean) : Void =
        function ( drawable :GLAutoDrawable, modeChanged: Boolean, deviceChanged: Boolean) : Void{
            java.lang.System.out.println("KoL");
        };
}

Here, I implemented the functions defined in GLEventListener, and the abstract function _init. I made each of these call a locally defined attribute. Now, we can build this class declaratively. All put together we get something that looks like this:

/*
 * Main.fx
 *
 * Created on Jul 26, 2008, 4:17:58 AM
 */
package net.saga.javafx3d;
/**
* @author summers
*/
import javax.media.opengl.GLEventListener;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GL;
var win:GLFrame = GLFrame {
    title:"Hello World",
    visible:true,
    glEventListeners : [
          JavaFXGLEventListener {
                  onInit :function (drawable: GLAutoDrawable ) : Void {
                          java.lang.System.out.println("BEGIN!");
                          var gl:GL = drawable.getGL();
                          gl.glClearColor(0.0.floatValue(), 1.0.floatValue(), 0.0.floatValue(),1.0.floatValue());
                          gl.glClear(GL.GL_COLOR_BUFFER_BIT);
                          gl.glClear(GL.GL_DEPTH_BUFFER_BIT);
                          gl.glColor3d(0.0, 1.0, 0.0);
                  }
          }
    ],
    width:100,
    height:100
}

I am still calling JOGL code inside of the function, but things are beginning to look more homogeneous.

3DJavaFX.tgz