Create artist filters when dragging a query from the artist in audiocontrols

src/libtomahawk/widgets/querylabel.cpp

@@ -566,6 +566,26 @@ QueryLabel::startDrag()
     queryStream << qlonglong( &m_query );
 
     mimeData->setData( "application/tomahawk.query.list", queryData );
+
+    if ( m_hoverType != None )
+    {
+        QString extra;
+        switch( m_hoverType )
+        {
+            case Artist:
+                extra = "artist";
+                break;
+            case Album:
+                extra = "album";
+                break;
+            case Track:
+                extra = "track";
+                break;
+            default:
+                break;
+        }
+        mimeData->setData( "application/tomahawk.dragsource.type", extra.toUtf8() );
+    }
     QDrag *drag = new QDrag( this );
     drag->setMimeData( mimeData );
     drag->setPixmap( TomahawkUtils::createDragPixmap( TomahawkUtils::MediaTypeTrack ) );

src/sourcetree/items/categoryitems.cpp

@@ -30,6 +30,8 @@
 #include "utils/logger.h"
 #include "dropjob.h"
 
+#include <echonest/Playlist.h>
+
 using namespace Tomahawk;
 
 
@@ -251,6 +253,9 @@ CategoryAddItem::dropMimeData( const QMimeData* data, Qt::DropAction )
 
     // Create a new playlist seeded with these items
     DropJob *dj = new DropJob();
+    if ( data->hasFormat( "application/tomahawk.dragsource.type" ) )
+        dj->setProperty( "dragsource", QString::fromUtf8( data->data( "application/tomahawk.dragsource.type" ) ) );
+
     connect( dj, SIGNAL( tracks( QList< Tomahawk::query_ptr > ) ), this, SLOT( parsedDroppedTracks( QList< Tomahawk::query_ptr > ) ) );
     if ( dropType() == DropTypeAllFromArtist )
         dj->setGetWholeArtists( true );
@@ -284,18 +289,30 @@ CategoryAddItem::parsedDroppedTracks( const QList< query_ptr >& tracks )
         // Give a shot to try to rename it. The playlist has to be created first. ugly.
         QTimer::singleShot( 300, APP->mainWindow()->sourceTreeView(), SLOT( renamePlaylist() ) );
     } else if( m_categoryType == SourcesModel::StationsCategory ) {
-        // seed the playlist with these song filters
+        // seed the playlist with these song or artist filters
         QString name = tracks.isEmpty() ? tr( "New Station" ) : tr( "%1 Station" ).arg( tracks.first()->track() );
         dynplaylist_ptr newpl = DynamicPlaylist::create( SourceList::instance()->getLocal(), uuid(), name, "", SourceList::instance()->getLocal()->friendlyName(), OnDemand, false );
         newpl->setMode( OnDemand );
 
-        // now we want to add each query as a song filter...
+        // now we want to add each query as a song or similar artist filter...
         QList< dyncontrol_ptr > contrls;
+        if ( sender() && sender()->property( "dragsource" ).toString() == "artist" )
+        {
+            foreach( const Tomahawk::query_ptr& q, tracks ) {
+                dyncontrol_ptr c = newpl->generator()->createControl( "Artist" );
+                c->setMatch( QString::number( (int)Echonest::DynamicPlaylist::ArtistRadioType ) );
+                c->setInput( QString( "%1" ).arg( q->artist() ) );
+                contrls << c;
+            }
+        }
+        else
+        {
             foreach( const Tomahawk::query_ptr& q, tracks ) {
                 dyncontrol_ptr c = newpl->generator()->createControl( "Song" );
                 c->setInput( QString( "%1 %2" ).arg( q->track() ).arg( q->artist() ) );
                 contrls << c;
             }
+        }
 
         newpl->createNewRevision( uuid(), newpl->currentrevision(), newpl->type(), contrls );