created sequence clip selection convenience function

project/sequence.cpp

@@ -79,6 +79,52 @@ void Sequence::RefreshClips(Media *m) {
   }
 }
 
+QVector<Clip *> Sequence::SelectedClips()
+{
+  QVector<Clip*> selected_clips;
+
+  for (int i=0;i<clips.size();i++) {
+    Clip* c = clips.at(i).get();
+    if (c != nullptr && IsClipSelected(c, true)) {
+      selected_clips.append(c);
+    }
+  }
+
+  return selected_clips;
+}
+
+QVector<int> Sequence::SelectedClipIndexes()
+{
+  QVector<int> selected_clips;
+
+  for (int i=0;i<clips.size();i++) {
+    Clip* c = clips.at(i).get();
+    if (c != nullptr && IsClipSelected(c, true)) {
+      selected_clips.append(i);
+    }
+  }
+
+  return selected_clips;
+}
+
+bool Sequence::IsClipSelected(int clip_index, bool containing)
+{
+  return IsClipSelected(clips.at(clip_index).get(), containing);
+}
+
+bool Sequence::IsClipSelected(Clip *clip, bool containing)
+{
+  for (int i=0;i<selections.size();i++) {
+    const Selection& s = selections.at(i);
+    if (clip->track() == s.track && ((clip->timeline_in() >= s.in && clip->timeline_out() <= s.out && containing)
+                                  || (!containing && !(clip->timeline_in() < s.in && clip->timeline_out() < s.in)
+                                   && !(clip->timeline_in() > s.in && clip->timeline_out() > s.in)))) {
+      return true;
+    }
+  }
+  return false;
+}
+
 void Sequence::getTrackLimits(int* video_tracks, int* audio_tracks) {
   int vt = 0;
   int at = 0;

project/sequence.h

@@ -44,6 +44,11 @@ public:
   int audio_layout;
 
   void RefreshClips(Media* m = nullptr);
+  QVector<Clip*> SelectedClips();
+  QVector<int> SelectedClipIndexes();
+
+  bool IsClipSelected(int clip_index, bool containing);
+  bool IsClipSelected(Clip* clip, bool containing);
 
   QVector<Selection> selections;
   long playhead;

project/undo.cpp

@@ -689,6 +689,13 @@ void EffectFieldUndo::doRedo() {
 SetClipProperty::SetClipProperty(SetClipPropertyType type) : type_(type)
 {}
 
+void SetClipProperty::AddSetting(QVector<Clip *> clips, bool setting)
+{
+  for (int i=0;i<clips.size();i++) {
+    AddSetting(clips.at(i), setting);
+  }
+}
+
 void SetClipProperty::AddSetting(Clip* c, bool setting)
 {
   clips_.append(c);

project/undo.h

@@ -374,6 +374,7 @@ public:
   SetClipProperty(SetClipPropertyType type);
   virtual void doUndo() override;
   virtual void doRedo() override;
+  void AddSetting(QVector<Clip *> clips, bool setting);
   void AddSetting(Clip *c, bool setting);
 private:
   SetClipPropertyType type_;