Fix T100633: Node Editor: Edge scrolling breaks node snapping

The view offset, calculated by the Edge Pan system, only affects the
position of the nodes, but forget to update:
- snapping data
- final value of transform
- values used for custom drawing

Therefore, to avoid having to update a lot of scattered data, the
`transformViewUpdate` utility has been implemented to recalculate input
values when the view changes.

This utility does more than is necessary to fix the bug, but with that,
it can work in any situation.

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/editors/transform/transform_mode.h b/source/blender/editors/transform/transform_mode.h
index eac6734ed88..063de87ebb2 100644
--- a/source/blender/editors/transform/transform_mode.h
+++ b/source/blender/editors/transform/transform_mode.h
@@ -117,6 +117,7 @@ void drawEdgeSlide(TransInfo *t);
 void initEdgeSlide_ex(
     TransInfo *t, bool use_double_side, bool use_even, bool flipped, bool use_clamp);
 void initEdgeSlide(TransInfo *t);
+void transform_mode_edge_slide_reproject_input(TransInfo *t);
 
 /* transform_mode_gpopacity.c */
 
@@ -191,3 +192,4 @@ void initTranslation(TransInfo *t);
 void drawVertSlide(TransInfo *t);
 void initVertSlide_ex(TransInfo *t, bool use_even, bool flipped, bool use_clamp);
 void initVertSlide(TransInfo *t);
+void transform_mode_vert_slide_reproject_input(TransInfo *t);