Add action to restore current clip target tracks to default

src/kdenliveui.rc

 <!DOCTYPE kpartgui SYSTEM "kpartgui.dtd">
-<kpartgui name="kdenlive" version="185" translationDomain="kdenlive">
+<kpartgui name="kdenlive" version="186" translationDomain="kdenlive">
   <MenuBar>
     <Menu name="file" >
       <Action name="file_save"/>
@@ -153,6 +153,7 @@
         <Action name="switch_active_target" />
         <Action name="switch_all_targets" />
         <Action name="activate_all_targets" />
+        <Action name="restore_all_sources" />
       </Menu>
       <Separator />
       <Menu name="video_effects_menu" ><text>Add Effect</text>

src/mainwindow.cpp

@@ -1729,6 +1729,7 @@ void MainWindow::setupActions()
               Qt::SHIFT + Qt::Key_A);
     addAction(QStringLiteral("activate_all_targets"), i18n("Switch All Tracks Active"), pCore->projectManager(), SLOT(slotMakeAllTrackActive()), QIcon(),
               Qt::SHIFT + Qt::ALT + Qt::Key_A);
+    addAction(QStringLiteral("restore_all_sources"), i18n("Restore Current Clip Target Tracks"), pCore->projectManager(), SLOT(slotRestoreTargetTracks()));
     addAction(QStringLiteral("add_project_note"), i18n("Add Project Note"), pCore->projectManager(), SLOT(slotAddProjectNote()),
               QIcon::fromTheme(QStringLiteral("bookmark-new")));
 

src/project/projectmanager.cpp

@@ -804,6 +804,11 @@ void ProjectManager::slotMakeAllTrackActive()
     pCore->window()->getMainTimeline()->controller()->makeAllTrackActive();
 }
 
+void ProjectManager::slotRestoreTargetTracks()
+{
+    pCore->window()->getMainTimeline()->controller()->restoreTargetTracks();
+}
+
 void ProjectManager::slotSwitchAllTrackLock()
 {
     pCore->window()->getMainTimeline()->controller()->switchTrackLock(true);

src/project/projectmanager.h

@@ -154,6 +154,8 @@ public slots:
     void slotSwitchAllTrackActive();
     /** @brief Make all tracks active or inactive */
     void slotMakeAllTrackActive();
+    /** @brief Restore current clip target tracks */
+    void slotRestoreTargetTracks();
 
     /** @brief Un/Set current track as target */
     void slotSwitchTrackTarget();

src/timeline2/view/timelinecontroller.cpp

@@ -117,6 +117,11 @@ void TimelineController::setModel(std::shared_ptr<TimelineItemModel> model)
     connect(m_model.get(), &TimelineModel::checkTrackDeletion, this, &TimelineController::checkTrackDeletion, Qt::DirectConnection);
 }
 
+void TimelineController::restoreTargetTracks()
+{
+    setTargetTracks(m_hasVideoTarget, m_model->m_binAudioTargets);
+}
+
 void TimelineController::setTargetTracks(bool hasVideo, QMap <int, QString> audioTargets)
 {
     int videoTrack = -1;

src/timeline2/view/timelinecontroller.h

@@ -512,6 +512,8 @@ public:
     void resetPreview();
     /** @brief Set target tracks (video, audio) */
     void setTargetTracks(bool hasVideo, QMap <int, QString> audioTargets);
+    /** @brief Restore Bin Clip original target tracks (video, audio) */
+    void restoreTargetTracks();
     /** @brief Return asset's display name from it's id (effect or composition) */
     Q_INVOKABLE const QString getAssetName(const QString &assetId, bool isTransition);
     /** @brief Set keyboard grabbing on current selection */