bbb2e0614f
When playing back animations a playhead is updated in all the animation editors. The drawing of the playhead is part of the drawing of the main region `RGN_TYPE_WINDOW` that redraws the whole region. This change will draw the play head and window scrollers when updating the screen. This affects the Action editor, Timeline, Graph editor, NLA editor and Sequence editor. There is noticeable speedup when using complex animation files. Spring 02_020_A.anim.blend fps went from 11.8 to 12.5 when showing a timeline and a action editor on a Ryzen 1700. * When playing back animation the markers don't jump up/down when near the frame. This could be added back. Reviewed By: Brecht van Lommel Differential Revision: https://developer.blender.org/D8066