Change the way the pose slider gets its color so it is consistent
between editors
Previously the highlight color would be different between
the 3D viewport and the graph editor.
Reviewed by: Sybren A. Stüvel, Pablo Vazquez
Differential Revision: https://developer.blender.org/D11878
Ref: D11878
Use arrays for wmEvent coordinates, this quiets warnings with GCC11.
- `x, y` -> `xy`.
- `prevx, prevy` -> `prev_xy`.
- `prevclickx, prevclicky` -> `prev_click_xy`.
There is still some cleanup such as using `copy_v2_v2_int()`,
this can be done separately.
Reviewed By: campbellbarton, Severin
Ref D12901
Extract the slider gui implemented for the pose slide tools.
Generalise it so it can be used by other tools as well.
Reviewed by: Sybren A. Stüvel
Differential Revision: https://developer.blender.org/D9314
Ref: D9314
Move some drawing code from `area.c` and `ed_util.c` into `ed_draw.c`.
This is to support the new generic slider that wil be used in T81785.
No functional changes.
Reviewed By: #animation_rigging, #user_interface, Severin, sybren
Maniphest Tasks: T81785
Differential Revision: https://developer.blender.org/D9313
