implement cache line for image editor

It works exactly the same as a cache line in movie clip editor.

1 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/editors/include/ED_screen.h b/source/blender/editors/include/ED_screen.h
index 1d1777afcd9..060702f6d71 100644
--- a/source/blender/editors/include/ED_screen.h
+++ b/source/blender/editors/include/ED_screen.h
@@ -178,6 +178,12 @@ int     ED_operator_posemode(struct bContext *C);
 int     ED_operator_mask(struct bContext *C);
 
 
+/* Cache display helpers */
+
+void ED_region_cache_draw_background(const struct ARegion *ar);
+void ED_region_cache_draw_curfra_label(const int framenr, const float x, const float y);
+void ED_region_cache_draw_cached_segments(const struct ARegion *ar, const int num_segments, const int *points, const int sfra, const int efra);
+
 /* default keymaps, bitflags */
 #define ED_KEYMAP_UI        1
 #define ED_KEYMAP_VIEW2D    2