improved insert/overwrite functions

app/panel/project/project.cpp

@@ -141,24 +141,6 @@ void ProjectPanel::DeselectAll()
   explorer_->DeselectAll();
 }
 
-void ProjectPanel::Insert()
-{
-  TimelinePanel* timeline = PanelManager::instance()->MostRecentlyFocused<TimelinePanel>();
-
-  if (timeline) {
-    timeline->InsertFootageAtPlayhead(GetSelectedFootage());
-  }
-}
-
-void ProjectPanel::Overwrite()
-{
-  TimelinePanel* timeline = PanelManager::instance()->MostRecentlyFocused<TimelinePanel>();
-
-  if (timeline) {
-    timeline->OverwriteFootageAtPlayhead(GetSelectedFootage());
-  }
-}
-
 void ProjectPanel::DeleteSelected()
 {
   explorer_->DeleteSelected();

app/panel/project/project.h

@@ -55,9 +55,6 @@ public:
   virtual void SelectAll() override;
   virtual void DeselectAll() override;
 
-  virtual void Insert() override;
-  virtual void Overwrite() override;
-
   virtual void DeleteSelected() override;
 
 public slots:

app/panel/timeline/timeline.cpp

@@ -101,24 +101,6 @@ void TimelinePanel::DecreaseTrackHeight()
   timeline_widget()->DecreaseTrackHeight();
 }
 
-void TimelinePanel::Insert()
-{
-  FootageManagementPanel* project_panel = PanelManager::instance()->MostRecentlyFocused<FootageManagementPanel>();
-
-  if (project_panel) {
-    InsertFootageAtPlayhead(project_panel->GetSelectedFootage());
-  }
-}
-
-void TimelinePanel::Overwrite()
-{
-  FootageManagementPanel* project_panel = PanelManager::instance()->MostRecentlyFocused<FootageManagementPanel>();
-
-  if (project_panel) {
-    OverwriteFootageAtPlayhead(project_panel->GetSelectedFootage());
-  }
-}
-
 void TimelinePanel::ToggleLinks()
 {
   timeline_widget()->ToggleLinksOnSelected();

app/panel/timeline/timeline.h

@@ -66,10 +66,6 @@ public:
 
   virtual void DecreaseTrackHeight() override;
 
-  virtual void Insert() override;
-
-  virtual void Overwrite() override;
-
   virtual void ToggleLinks() override;
 
   virtual void CutSelected() override;

app/widget/panel/panel.h

@@ -124,10 +124,6 @@ public:
 
   virtual void RippleDelete(){}
 
-  virtual void Insert(){}
-
-  virtual void Overwrite(){}
-
   virtual void IncreaseTrackHeight(){}
 
   virtual void DecreaseTrackHeight(){}

app/window/mainwindow/mainmenu.cpp

@@ -526,12 +526,22 @@ void MainMenu::DeselectAllTriggered()
 
 void MainMenu::InsertTriggered()
 {
-  PanelManager::instance()->CurrentlyFocused()->Insert();
+  FootageManagementPanel* project_panel = PanelManager::instance()->MostRecentlyFocused<FootageManagementPanel>();
+  TimelinePanel *timeline_panel = PanelManager::instance()->MostRecentlyFocused<TimelinePanel>();
+
+  if (project_panel && timeline_panel) {
+    timeline_panel->InsertFootageAtPlayhead(project_panel->GetSelectedFootage());
+  }
 }
 
 void MainMenu::OverwriteTriggered()
 {
-  PanelManager::instance()->CurrentlyFocused()->Overwrite();
+  FootageManagementPanel* project_panel = PanelManager::instance()->MostRecentlyFocused<FootageManagementPanel>();
+  TimelinePanel *timeline_panel = PanelManager::instance()->MostRecentlyFocused<TimelinePanel>();
+
+  if (project_panel && timeline_panel) {
+    timeline_panel->OverwriteFootageAtPlayhead(project_panel->GetSelectedFootage());
+  }
 }
 
 void MainMenu::RippleToInTriggered()