Fixed type testing of media items (qgraphicsitem_cast couldn't tell the difference between audio and video items)

src/core/UB.h

@@ -151,6 +151,8 @@ struct UBGraphicsItemType
         SvgItemType,
         DelegateButtonType,
         MediaItemType,
+        VideoItemType,
+        AudioItemType,
         PDFItemType,
         TextItemType,
         CurtainItemType,

src/domain/UBGraphicsMediaItem.h

@@ -160,6 +160,11 @@ class UBGraphicsAudioItem: public UBGraphicsMediaItem
     Q_OBJECT
 
 public:
+    enum { Type = UBGraphicsItemType::AudioItemType};
+    virtual int type() const
+    {
+        return Type;
+    }
 
     UBGraphicsAudioItem(const QUrl& pMediaFileUrl, QGraphicsItem *parent = 0);
     mediaType getMediaType() const { return mediaType_Audio; }
@@ -172,6 +177,11 @@ class UBGraphicsVideoItem: public UBGraphicsMediaItem
     Q_OBJECT
 
 public:
+    enum { Type = UBGraphicsItemType::VideoItemType};
+    virtual int type() const
+    {
+        return Type;
+    }
 
     UBGraphicsVideoItem(const QUrl& pMediaFileUrl, QGraphicsItem *parent = 0);