The vertex buffer implementation uses the shader manager to decide
whether core painting should be used or not. Shader manager is only
used by shaders using vertex attributes instead of gl_Vertex etc.
This provides a good resizing performance for users having problems with the live-updating resize.
Patch by Thomas Lübking.
svn path=/trunk/KDE/kdebase/workspace/; revision=1118714
Perhaps we should not display the totally ugly drawbound when we have an active resize effect.
CCBUG: 208770
CCBUG: 152638
svn path=/trunk/KDE/kdebase/workspace/; revision=1042711
It requires some more adjustments so that the rubber band is also shown when window content is not shown during resize.
svn path=/trunk/KDE/kdebase/workspace/; revision=987091