From 3591f0c7b363860e9866b0f9918c676282e5b039 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Sat, 5 Oct 2019 07:44:11 +1000
Subject: [PATCH] fixed crash when tracks are added

---
 app/node/output/timeline/tracklist.cpp | 12 ++++++++----
 app/node/output/timeline/tracklist.h   |  3 +++
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/app/node/output/timeline/tracklist.cpp b/app/node/output/timeline/tracklist.cpp
index 1cfb4c208..904c82eaa 100644
--- a/app/node/output/timeline/tracklist.cpp
+++ b/app/node/output/timeline/tracklist.cpp
@@ -21,7 +21,6 @@
 #include "tracklist.h"
 
 #include "node/blend/alphaover/alphaover.h"
-#include "node/graph.h"
 #include "timeline.h"
 
 TrackList::TrackList(TimelineOutput* parent, NodeInput *track_input) :
@@ -134,7 +133,7 @@ void TrackList::SetTimebase(const rational &timebase)
 void TrackList::AddTrack()
 {
   TrackOutput* track = new TrackOutput();
-  static_cast<NodeGraph*>(parent())->AddNode(track);
+  GetParentGraph()->AddNode(track);
 
   if (track_cache_.isEmpty()) {
     // Connect this track directly to this output
@@ -147,7 +146,7 @@ void TrackList::AddTrack()
 
     // FIXME: Test code only
     AlphaOverBlend* blend = new AlphaOverBlend();
-    static_cast<NodeGraph*>(parent())->AddNode(blend);
+    GetParentGraph()->AddNode(blend);
 
     NodeParam::ConnectEdge(track->texture_output(), blend->blend_input());
     NodeParam::ConnectEdge(current_last_track->texture_output(), blend->base_input());
@@ -164,7 +163,7 @@ void TrackList::RemoveTrack()
 
   TrackOutput* track = track_cache_.last();
 
-  static_cast<NodeGraph*>(parent())->TakeNode(track);
+  GetParentGraph()->TakeNode(track);
 
   delete track;
 }
@@ -217,3 +216,8 @@ void TrackList::TrackEdgeRemoved(NodeEdgePtr edge)
     DetachTrack(added_track);
   }
 }
+
+NodeGraph *TrackList::GetParentGraph()
+{
+  return static_cast<NodeGraph*>(parent()->parent());
+}
diff --git a/app/node/output/timeline/tracklist.h b/app/node/output/timeline/tracklist.h
index 8aeeedf97..856b8153f 100644
--- a/app/node/output/timeline/tracklist.h
+++ b/app/node/output/timeline/tracklist.h
@@ -23,6 +23,7 @@
 
 #include <QObject>
 
+#include "node/graph.h"
 #include "node/output/track/track.h"
 
 class TimelineOutput;
@@ -100,6 +101,8 @@ signals:
   void TimebaseChanged(const rational &timebase);
 
 private:
+  NodeGraph* GetParentGraph();
+
   /**
    * @brief A cache of connected Tracks
    */