+_cascade_x = 0
+_cascade_y = 0
+
+def cascade(data):
+ """Place windows in a cascading order from top-left to bottom-right."""
+ if not data.client: return
+ if data.client.positionRequested(): return
+ client_area = data.client.frame.area()
+ screen_area = ob.openbox.screen(data.screen).area(data.client.desktop())
+ width = screen_area.width() - client_area.width()
+ height = screen_area.height() - client_area.height()
+ global _cascade_x, _cascade_y
+ if _cascade_x < screen_area.x() or _cascade_y < screen_area.y() or \
+ _cascade_x >= width or _cascade_y >= height:
+ _cascade_x = screen_area.x()
+ _cascade_y = screen_area.y()
+ data.client.move(_cascade_x, _cascade_y)
+ frame_size = data.client.frame.size()
+ _cascade_x += frame_size.top
+ _cascade_y += frame_size.top
+