Fix VSE: Effect strip flickers when moving left handle

The issue was caused by refactoring, see 7afcfe111aacc8bc. Function
`SEQ_transform_fix_single_image_seq_offsets` modified offsets after
handle was moved, but this was not done correctly.

Remove function mentioned above and move strip start when moving left
handle of strips that have only single frame of content by design
(image, text, color, ...).

1 files changed, 0 insertions, 2 deletions

diff --git a/source/blender/editors/transform/transform_convert_sequencer.c b/source/blender/editors/transform/transform_convert_sequencer.c
index 090f1bf1e6c..80c74b81cfa 100644
--- a/source/blender/editors/transform/transform_convert_sequencer.c
+++ b/source/blender/editors/transform/transform_convert_sequencer.c
@@ -615,7 +615,6 @@ static void flushTransSeq(TransInfo *t)
       case SEQ_LEFTSEL: { /* No vertical transform. */
         int old_startdisp = SEQ_time_left_handle_frame_get(scene, seq);
         SEQ_time_left_handle_frame_set(t->scene, seq, new_frame);
-        SEQ_transform_fix_single_image_seq_offsets(t->scene, seq);
 
         if (abs(SEQ_time_left_handle_frame_get(scene, seq) - old_startdisp) > abs(max_offset)) {
           max_offset = SEQ_time_left_handle_frame_get(scene, seq) - old_startdisp;
@@ -625,7 +624,6 @@ static void flushTransSeq(TransInfo *t)
       case SEQ_RIGHTSEL: { /* No vertical transform. */
         int old_enddisp = SEQ_time_right_handle_frame_get(scene, seq);
         SEQ_time_right_handle_frame_set(t->scene, seq, new_frame);
-        SEQ_transform_fix_single_image_seq_offsets(t->scene, seq);
 
         if (abs(SEQ_time_right_handle_frame_get(scene, seq) - old_enddisp) > abs(max_offset)) {
           max_offset = SEQ_time_right_handle_frame_get(scene, seq) - old_enddisp;