Library: Unbroke clip adding conception.

The previewwidget isn't meant to emit a signal about a clip beeing
added.
Let this to the media, as it holds the clips.

src/Gui/MainWindow.cpp

@@ -243,8 +243,6 @@ void        MainWindow::setupLibrary()
 
     connect( mediaLibraryWidget, SIGNAL( importRequired() ), this, SLOT( on_actionImport_triggered() ) );
 
-    connect( m_clipPreview, SIGNAL( addClip( Clip* ) ), mediaLibraryWidget, SLOT( clipAdded( Clip* ) ) );
-
     connect( mediaLibraryWidget, SIGNAL( previewClipSetted( Clip* ) ),
             m_clipPreview->getGenericRenderer(), SLOT( setClip( Clip* ) ) );
 }

src/Gui/PreviewWidget.cpp

@@ -206,7 +206,7 @@ void        PreviewWidget::createNewClipFromMarkers()
     Clip*   part = new Clip( selectedMedia, beg, end );
 
     //Adding the newly created clip to the media
-    selectedMedia->addClip( part );
-    emit addClip( part );
+    if ( selectedMedia->addClip( part ) == false )
+        delete part;
     return ;
 }

src/Gui/PreviewWidget.h

@@ -70,9 +70,6 @@ private slots:
     void            markerStartClicked();
     void            markerStopClicked();
     void            createNewClipFromMarkers();
-
-signals:
-    void            addClip( Clip* clip );
 };
 
 #endif // PREVIEWWIDGET_H

src/Gui/import/ImportController.cpp

@@ -97,8 +97,6 @@ ImportController::ImportController(QWidget *parent) :
 
     connect( m_mediaListController, SIGNAL( showClipListAsked( const QUuid& ) ),
              this, SLOT( showClipList( const QUuid& ) ) );
-    connect( m_preview, SIGNAL( addClip( Clip* ) ),
-             m_mediaListController, SLOT( clipAdded( Clip* ) ) ); //StackViewController
     connect( m_stackNav, SIGNAL( previousButtonPushed() ),
              this, SLOT( restoreContext() ) );
 

src/Gui/import/ImportMediaListController.cpp

@@ -46,6 +46,8 @@ ImportMediaListController::addMedia( Media* media )
              this, SIGNAL( mediaDeleted( const QUuid& ) ) );
     connect( cell, SIGNAL( arrowClicked( const QUuid& ) ),
              this, SIGNAL( showClipListAsked( const QUuid& ) ) );
+    connect( media, SIGNAL( clipAdded(Clip*) ),
+             this, SLOT( clipAdded( Clip* ) ) );
 
     cell->setTitle( media->fileName() );
     cell->setThumbnail( media->snapshot() );

src/Gui/library/MediaListViewController.cpp

@@ -50,6 +50,8 @@ void        MediaListViewController::newMediaLoaded( Media* media )
              this, SLOT( showClipList( const QUuid& ) ) );
     connect( media, SIGNAL( snapshotComputed( const Media* ) ),
              this, SLOT( updateCell( const Media* ) ) );
+    connect( media, SIGNAL( clipAdded( Clip* ) ),
+             this, SLOT( newClipAdded(Clip*) ) );
     cell->setNbClips( media->clips()->size() );
     cell->setThumbnail( media->snapshot() );
     cell->setTitle( media->fileName() );

src/Media/Media.cpp

@@ -268,16 +268,18 @@ bool                Media::matchMetaTag( const QString& tag ) const
     return false;
 }
 
-void            Media::addClip( Clip* clip )
+bool            Media::addClip( Clip* clip )
 {
     if ( clip->getParent() != this )
-        return ;
+        return false;
     foreach ( Clip *c, m_clips.values() )
     {
         if ( clip->begin() == c->begin() && clip->end() == clip->end() )
-            return ;
+            return false;
     }
     m_clips.insert( clip->uuid(), clip );
+    emit clipAdded( clip );
+    return true;
 }
 
 void            Media::removeClip( const QUuid& uuid )
@@ -294,7 +296,7 @@ Media::hasAudioTrack() const
 bool
 Media::hasVideoTrack() const
 {
-    return ( m_nbVideoTracks > 0);
+    return ( m_nbVideoTracks > 0 );
 }
 
 void

src/Media/Media.h

@@ -140,7 +140,7 @@ public:
 
 //    bool                        hasMetadata() const;
 
-    void                        addClip( Clip* clip );
+    bool                        addClip( Clip* clip );
     void                        removeClip( const QUuid& uuid );
     Clip*                       clip( const QUuid& uuid ) const { return m_clips[uuid]; }
     const QHash<QUuid, Clip*>*  clips() const { return &m_clips; }
@@ -179,6 +179,7 @@ signals:
     void                        metaDataComputed( const Media* );
     void                        snapshotComputed( const Media* );
     void                        audioSpectrumComputed( const QUuid& );
+    void                        clipAdded( Clip* );
 };
 
 #endif // CLIP_H__