From 6046b1e8929e40b89edf49a97e0e5da580eb04aa Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Tue, 14 Apr 2020 23:36:59 +1000
Subject: [PATCH] timeline: fixed bug that prevented clips from being dragged
 to lower tracks

---
 app/widget/timelinewidget/tool/pointer.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/app/widget/timelinewidget/tool/pointer.cpp b/app/widget/timelinewidget/tool/pointer.cpp
index 27fcbb3cd..848b15585 100644
--- a/app/widget/timelinewidget/tool/pointer.cpp
+++ b/app/widget/timelinewidget/tool/pointer.cpp
@@ -370,7 +370,16 @@ void TimelineWidget::PointerTool::ProcessDrag(const TimelineCoordinate &mouse_po
 
   // Validate movement (enforce all ghosts moving in legal ways)
   time_movement = FrameValidateInternal(time_movement, parent()->ghost_items_);
-  track_movement = ValidateTrackMovement(track_movement, parent()->ghost_items_);
+
+  // Validate ghosts that are being moved (clips from other track types do NOT get validated or moved)
+  QVector<TimelineViewGhostItem*> validate_track_ghosts = parent()->ghost_items_;
+  for (int i=0;i<validate_track_ghosts.size();i++) {
+    if (validate_track_ghosts.at(i)->Track().type() != drag_track_type_) {
+      validate_track_ghosts.removeAt(i);
+      i--;
+    }
+  }
+  track_movement = ValidateTrackMovement(track_movement, validate_track_ghosts);
 
   // Perform movement
   foreach (TimelineViewGhostItem* ghost, parent()->ghost_items_) {