Markers: Make marker lines in sequencer and graph editor optional

- Makes it possible to show a vertical line for every marker in the graph editor.
- Makes the marker line visiblity optional in the sequencer and graph editor.

Request from @hjalti.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D4348

1 files changed, 13 insertions, 1 deletions

diff --git a/source/blender/blenloader/intern/versioning_280.c b/source/blender/blenloader/intern/versioning_280.c
index 154abbab04a..cfba6f803c9 100644
--- a/source/blender/blenloader/intern/versioning_280.c
+++ b/source/blender/blenloader/intern/versioning_280.c
@@ -2804,8 +2804,20 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 		}
 	}
 
+	if (!MAIN_VERSION_ATLEAST(bmain, 280, 45)) {
+		for (bScreen *screen = bmain->screen.first; screen; screen = screen->id.next) {
+			for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+				for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+					if (sl->spacetype == SPACE_SEQ) {
+						SpaceSeq *sseq = (SpaceSeq *)sl;
+						sseq->flag |= SEQ_SHOW_MARKER_LINES;
+					}
+				}
+			}
+		}
+	}
+
 	{
 		/* Versioning code until next subversion bump goes here. */
-
 	}
 }