component overlaping when using active rendering

Java 2D
#1

I’m new to this forum and want to say hello to all :slight_smile:

I’m the developer of a program called Biogenesis (http://biogenesis.sourceforge.net/). Trying to speed up the program in slow computers, I’m switching to active rendering, following the ideas in “Killer Game Programming in Java” (http://fivedots.coe.psu.ac.th/~ad/jg/). The simulation process gets faster but the problem appears when the user opens a menu: when a menu overlaps with the active rendered JPanel, it disappears due to the continuous rendering process.

My question is, how can I prevent this from happening? Is there a way to do active rendering in a windowed program and keep a menu and a tool bar without problems?

Thank you in advance for your help. Please, let me know if you need more details.

#2

Try calling:-

JPopupMenu.setDefaultLightWeightPopupEnabled(false);

This will put the menus in separate heavyweight containers from the JPanel, which I think should clip the actively rendered graphics.

#3

Thank you! It works perfectly. Now, the only remaining problem is with the tool bar, that is continuously rendered if it floating on the JPanel. I guess I can set its floatable property to false to avoid this, but maybe there is a way to stop it from doing that.