Added drop event to playlistview

src/libtomahawk/playlist/playlistview.cpp

@@ -80,6 +80,110 @@ PlaylistView::setPlaylistModel( PlaylistModel* model )
 }
 
 
+/** Drop **/
+
+
+void
+PlaylistView::dragEnterEvent( QDragEnterEvent* event )
+{
+    qDebug() << Q_FUNC_INFO;
+    QTreeView::dragEnterEvent( event );
+
+    if ( DropJob::acceptsMimeData( event->mimeData() ) )
+    {
+        m_dragging = true;
+        m_dropRect = QRect();
+
+        qDebug() << Q_FUNC_INFO << "Accepting Drag Event";
+        event->acceptProposedAction();
+    }
+}
+
+
+void
+PlaylistView::dragMoveEvent( QDragMoveEvent* event )
+{
+    QTreeView::dragMoveEvent( event );
+
+    if ( model()->isReadOnly() )
+    {
+        qDebug() << Q_FUNC_INFO << "Ignoring DragMove Event";
+        event->ignore();
+        return;
+    }
+
+    if ( DropJob::acceptsMimeData( event->mimeData() ) )
+    {
+         qDebug() << Q_FUNC_INFO << "Accepting DragMove Event";
+    }
+
+        setDirtyRegion( m_dropRect );
+}
+
+
+void
+PlaylistView::dropEvent( QDropEvent* event )
+{
+    QTreeView::dropEvent( event );
+
+    if ( event->isAccepted() )
+    {
+        qDebug() << Q_FUNC_INFO << "Ignoring accepted event!";
+    }
+    else
+    {
+        if ( DropJob::acceptsMimeData( event->mimeData()) )
+        {
+            const QPoint pos = event->pos();
+            const QModelIndex index = indexAt( pos );
+
+            qDebug() << Q_FUNC_INFO << "Drop Event accepted at row:" << index.row();
+            event->acceptProposedAction();
+
+            if ( !model()->isReadOnly() )
+            {
+                model()->dropMimeData( event->mimeData(), event->proposedAction(), index.row(), 0, index.parent() );
+            }
+        }
+    }
+
+    m_dragging = false;
+}
+
+
+void
+PlaylistView::paintEvent( QPaintEvent* event )
+{
+    QTreeView::paintEvent( event );
+    QPainter painter( viewport() );
+
+    if ( m_dragging )
+    {
+        // draw drop indicator
+        {
+            // draw indicator for inserting items
+            QBrush blendedBrush = viewOptions().palette.brush( QPalette::Normal, QPalette::Highlight );
+            QColor color = blendedBrush.color();
+
+            const int y = ( m_dropRect.top() + m_dropRect.bottom() ) / 2;
+            const int thickness = m_dropRect.height() / 2;
+
+            int alpha = 255;
+            const int alphaDec = alpha / ( thickness + 1 );
+            for ( int i = 0; i < thickness; i++ )
+            {
+                color.setAlpha( alpha );
+                alpha -= alphaDec;
+                painter.setPen( color );
+                painter.drawLine( 0, y - i, width(), y - i );
+                painter.drawLine( 0, y + i, width(), y + i );
+            }
+        }
+    }
+}
+
+
+/** Drop **/
 void
 PlaylistView::keyPressEvent( QKeyEvent* event )
 {

src/libtomahawk/playlist/playlistview.h

@@ -23,7 +23,7 @@
 #include "playlist/playlistmodel.h"
 #include "trackview.h"
 #include "viewpage.h"
-
+#include "dropjob.h"
 #include "dllmacro.h"
 
 class DLLEXPORT PlaylistView : public TrackView, public Tomahawk::ViewPage
@@ -46,20 +46,24 @@ public:
     virtual QString title() const { return playlistModel()->title(); }
     virtual QString description() const { return m_model->description(); }
     virtual QPixmap pixmap() const { return QPixmap( RESPATH "images/playlist-icon.png" ); }
-
     virtual bool jumpToCurrentTrack();
     virtual bool isTemporaryPage() const;
 
+
 signals:
     void nameChanged( const QString& title );
     void destroyed( QWidget* widget );
 
 protected:
     void keyPressEvent( QKeyEvent* event );
+    virtual void dragEnterEvent( QDragEnterEvent* event );
+    virtual void dragLeaveEvent( QDragLeaveEvent* /*event*/ ) { m_dragging = false; setDirtyRegion( m_dropRect ); }
+    virtual void dragMoveEvent( QDragMoveEvent* event );
+    virtual void dropEvent( QDropEvent* event );
+    void paintEvent( QPaintEvent* event );
 
 private slots:
     void onTrackCountChanged( unsigned int tracks );
-
     void onMenuTriggered( int action );
     void deleteItems();
 
@@ -68,9 +72,12 @@ private slots:
 
 private:
     PlaylistModel* m_model;
-
+    bool m_resizing;
+    bool m_dragging;
+    QRect m_dropRect;
     QString m_customTitle;
     QString m_customDescripton;
+
 };
 
 #endif // PLAYLISTVIEW_H