derive clips, tracks, and sequences from the same base

timeline/track.cpp

@@ -1,5 +1,8 @@
 #include "track.h"
 
+#include <QApplication>
+#include <QDesktopWidget>
+
 #include "timeline/clip.h"
 #include "timeline/tracklist.h"
 #include "timeline/sequence.h"
@@ -9,6 +12,8 @@ int olive::timeline::kTrackDefaultHeight = 40;
 int olive::timeline::kTrackMinHeight = 30;
 int olive::timeline::kTrackHeightIncrement = 10;
 
+int olive::timeline::kTimelineLabelFixedWidth = 200;
+
 Track::Track(TrackList* parent, olive::TrackType type) :
   parent_(parent),
   type_(type),
@@ -206,6 +211,26 @@ bool Track::ContainsClip(Clip *c)
   return false;
 }
 
+int Track::SequenceWidth()
+{
+  return sequence()->width;
+}
+
+int Track::SequenceHeight()
+{
+  return sequence()->height;
+}
+
+double Track::SequenceFrameRate()
+{
+  return sequence()->frame_rate;
+}
+
+long Track::SequencePlayhead()
+{
+  return sequence()->playhead;
+}
+
 Track *Track::Previous()
 {
   int index = Index();
@@ -433,3 +458,12 @@ void Track::SetLocked(bool locked)
 {
   locked_ = locked;
 }
+
+void olive::timeline::MultiplyTrackSizesByDPI()
+{
+  kTrackDefaultHeight *= qApp->fontMetrics().height() * 3;
+  kTrackMinHeight *= qApp->fontMetrics().height();
+  kTrackHeightIncrement *= qApp->fontMetrics().height() / 2;
+  kTimelineLabelFixedWidth *= QApplication::desktop()->devicePixelRatio();
+}
+