option to transform markers in the dope sheet, needed for re-timing animation. currently supports translate and extend.

TODO:
- select markers in dope sheet.
- transform time scale.

1 files changed, 33 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index 77b1202aa20..630ddb49c7e 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -783,6 +783,39 @@ char *scene_find_last_marker_name(Scene *scene, int frame)
 	return best_marker ? best_marker->name : NULL;
 }
 
+/* markers need transforming from different parts of the code so have
+ * a generic function to do this */
+int scene_marker_tfm_translate(Scene *scene, int delta, int flag)
+{
+	TimeMarker *marker;
+	int tot= 0;
+
+	for (marker= scene->markers.first; marker; marker= marker->next) {
+		if ((marker->flag & flag) == flag) {
+			marker->frame += delta;
+			tot++;
+		}
+	}
+
+	return tot;
+}
+
+int scene_marker_tfm_extend(Scene *scene, int delta, int flag, int frame, char side)
+{
+	TimeMarker *marker;
+	int tot= 0;
+
+	for (marker= scene->markers.first; marker; marker= marker->next) {
+		if ((marker->flag & flag) == flag) {
+			if((side=='L' && marker->frame < frame) || (side=='R' && marker->frame > frame)) {
+				marker->frame += delta;
+				tot++;
+			}
+		}
+	}
+
+	return tot;
+}
 
 Base *scene_add_base(Scene *sce, Object *ob)
 {