Re: [gl4java-usergroup] what is the recommended way of swapping o ne canvas for another?-working now

[Sven G. <sgo...@ja...>]

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On Thursday 13 June 2002 15:08, Combe, Colin wrote:
> thanks Max,
> i'd have replied sooner but have been away for a few days. Things are
> working now.
> I think there was some sort of problem with adding and removing the
> GLCanvas components from  a Panel or Frame, just treating them like i would
> any other component didn't work anyway. After re-adding them nothing would
> appear in them. In my efforts to make it work I just ended up over
> complicating things - this was how i got into destroying and creating new
> instances and using cvsDispose.
> Anyway, I now add all the canvas's i'm going to use to the panel at the
> start and set them visible or invisible as required. It confuses layout
> managers a bit but i can live with that.
> cheers,
> colin
>

Well, here is an working example (outta gl4java.applet.SimpleGLAnimApplet1 @ CVS)

This one tooks out a GLCanvas Component, owned by a frame,
and adds it to a new frame.

The next time, it goes vica versa !

                GLAnimCanvas glcvs = (GLAnimCanvas)comp;
                System.out.println("\n\nswitch requested: "+glcvs);
                glcvs.cvsDispose();
                System.out.println("\n\ndisposed: "+glcvs);

                Container c = glcvs.getParent();
                c.remove(glcvs);

                System.out.println("\n\nremoved: "+glcvs);
                System.out.println("Global GLAnimCanvas Render-Thread Number: "+ GLAnimCanvas.getGlobalThreadNumber());
                System.out.println("GLContextNumber: "+
                                GLContext.getNativeGLContextNumber());

                if(_origCont !=null && c == _saveFrame)
                {
                        _saveFrame.dispose();
                        _saveFrame=null;

                        _origCont.add(canvas);
                        _origCont.doLayout();
                        _origCont = null;
                } else if( _saveFrame ==null && _origCont == null )
                {
                        _origCont = c;
                        _saveFrame = new Frame("EXTRA");
                        _saveFrame.add(glcvs);
                        _saveFrame.pack();
                        _saveFrame.setVisible(true);
                }
                glcvs.setVisible(true);
                glcvs.repaint();
                glcvs.start();

                System.out.println("\nadded+started: "+glcvs);
                System.out.println("Global GLAnimCanvas Render-Thread Number: "+ GLAnimCanvas.getGlobalThreadNumber());
                System.out.println("GLContextNumber: "+
                                GLContext.getNativeGLContextNumber());

so what ?

but try this with the CVS version only .. i guess ;-)

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