UI|Client|libdeng2: Cull widgets that cannot be visible due to clipping
Widgets that lie outside the visible clip rectangles will not be drawn at all. Previously all widgets were always drawn, regardless of whether they could even be visible due to parents clipping their children.
Added Rectangle::overlaps() to check for overlapping rectangles.
Added by skyjake almost 11 years ago
Added by
UI|Client|libdeng2: Cull widgets that cannot be visible due to clipping
Widgets that lie outside the visible clip rectangles will not be
drawn at all. Previously all widgets were always drawn, regardless
of whether they could even be visible due to parents clipping their
children.
Added Rectangle::overlaps() to check for overlapping rectangles.