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  Applet resize problem  (Read 1725 times)
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Offline .exe

Senior Newbie





« Posted 2011-09-23 18:52:56 »

Hi, i am new to java and game development.

I just started creating my first java applet using JOGL library.
After few tutorials i managed to draw a triangle, but have problem with GLCanvas and the reshape method.

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        public class CMain extends Applet implements GLEventListener
....

   public void init()
   {
      glu = new GLU();
      canvas = new GLCanvas(new GLCapabilities(GLProfile.getDefault()));
      this.add(canvas);
     
      canvas.addGLEventListener(this);
      canvas.setPreferredSize(this.getSize());
     
      final FPSAnimator animator = new FPSAnimator(canvas, 60);
      animator.start();
   }

....

   public void reshape(GLAutoDrawable glDrawable, int x, int y, int w, int h)
   {
         GL2 gl = glDrawable.getGL().getGL2();
         
         h = (h == 0) ? 1 : h;  // Prevent divide by zero
        float aspect = (float)w / h; // Compute aspect ratio
       
         // Set view port to cover full screen
        gl.glViewport(0, 0, w, h);
         
         // Set up the projection matrix - choose perspective view
        gl.glMatrixMode(GLMatrixFunc.GL_PROJECTION);  
         gl.glLoadIdentity();    // reset
        glu.gluPerspective(45.0f, aspect, 0.1f, 100.0f);
         
         // Switch to the model-view transform
        gl.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
         gl.glLoadIdentity();    
         
         canvas.setPreferredSize(null);
         canvas.setPreferredSize(this.getSize());  // <--- hmmm
  }


I'm using Eclipse and Java applet viewer, and when i resize window/applet
sometimes the Canvas size doesn't update!!  persecutioncomplex

Any suggestions?
Offline .exe

Senior Newbie





« Reply #1 - Posted 2011-09-24 13:31:31 »

Nobody knows where is problem?

Dont know if i have to resize canvas manually or is there some way to tell canvas to resize automatically,
i need to set some layout or??
Offline aazimon
« Reply #2 - Posted 2011-09-24 18:06:40 »

I don't know much about applets. I didn't think you could re-size it. The problem may be in the repaint() method. How are you handling that in the applet?
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Offline .exe

Senior Newbie





« Reply #3 - Posted 2011-09-24 22:02:14 »

fixed Smiley

replaced canvas.setPreferedSize() with canvas.reshape().
eclipse doesn't have javadoc for that method, it has 4 parameters so i guessed that would be x,y,width,and height.

1  
canvas.reshape(0, 0, this.getWidth(), this.getHeight());
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