initial prototype of loading animation. needs some work, and eventually i want to

do the manual painting instead of using an animated gif, but this will work for now

resources.qrc

@@ -69,6 +69,7 @@
 <file>./data/images/volume-slider-bkg.png</file>
 <file>./data/images/volume-slider-level.png</file>
 <file>./data/images/echonest_logo.png</file>
+<file>./data/images/loading-animation.gif</file>
 <file>./data/topbar-radiobuttons.css</file>
 <file>./data/icons/tomahawk-icon-16x16.png</file>
 <file>./data/icons/tomahawk-icon-32x32.png</file>

src/libtomahawk/CMakeLists.txt

@@ -115,6 +115,7 @@ set( libSources
     playlist/dynamic/widgets/MiscControlWidgets.cpp
     playlist/dynamic/widgets/CollapsibleControls.cpp
     playlist/dynamic/widgets/DynamicSetupWidget.cpp
+    playlist/dynamic/widgets/LoadingSpinner.cpp
 
     network/bufferiodevice.cpp
     network/msgprocessor.cpp
@@ -262,6 +263,7 @@ set( libHeaders
     playlist/dynamic/widgets/MiscControlWidgets.h
     playlist/dynamic/widgets/CollapsibleControls.h
     playlist/dynamic/widgets/DynamicSetupWidget.h
+    playlist/dynamic/widgets/LoadingSpinner.h
 
     utils/tomahawkutils.h
     utils/querylabel.h

src/libtomahawk/playlist/dynamic/DynamicModel.cpp

@@ -25,6 +25,7 @@ DynamicModel::DynamicModel( QObject* parent )
     , m_startOnResolved( false )
     , m_onDemandRunning( false )
     , m_changeOnNext( false )
+    , m_firstTrackGenerated( false )
     , m_currentAttempts( 0 )
     , m_lastResolvedRow( 0 )
 {
@@ -69,6 +70,10 @@ void
 DynamicModel::newTrackGenerated( const Tomahawk::query_ptr& query )
 {
     if( m_onDemandRunning ) {
+        if( !m_firstTrackGenerated ) {
+            emit firstTrackGenerated();
+            m_firstTrackGenerated = false;
+        }
         connect( query.data(), SIGNAL( resolvingFinished( bool ) ), this, SLOT( trackResolveFinished( bool ) ) );
         connect( query.data(), SIGNAL( resultsAdded( QList<Tomahawk::result_ptr> ) ), this, SLOT( trackResolved() ) );
     
@@ -80,6 +85,7 @@ void
 DynamicModel::stopOnDemand( bool stopPlaying )
 {
     m_onDemandRunning = false;
+    m_firstTrackGenerated = false;
     if( stopPlaying )
         AudioEngine::instance()->stop();
     

src/libtomahawk/playlist/dynamic/DynamicModel.h

@@ -49,6 +49,7 @@ signals:
     void collapseFromTo( int startRow, int num );
     void checkForOverflow();
 
+    void firstTrackGenerated();
     void trackGenerationFailure( const QString& msg );
     
 private slots:    
@@ -64,6 +65,7 @@ private:
     bool m_onDemandRunning;
     bool m_changeOnNext;
     bool m_searchingForNext;
+    bool m_firstTrackGenerated;
     int m_currentAttempts;
     int m_lastResolvedRow;
 };

src/libtomahawk/playlist/dynamic/DynamicView.cpp

@@ -40,6 +40,7 @@ DynamicView::DynamicView( QWidget* parent )
         : PlaylistView( parent )
         , m_onDemand( false )
         , m_checkOnCollapse( false )
+        , m_working( false )
         , m_fadebg( false )
 {
     setContentsMargins( 0, 0, 0, 0 );
@@ -110,11 +111,21 @@ DynamicView::showMessage(const QString& message)
     overlay()->show();
 }
 
+void 
+DynamicView::setDynamicWorking(bool working)
+{
+    m_working = working;
+    if( working )
+        overlay()->hide();
+    else
+        onTrackCountChanged( proxyModel()->rowCount() );
+}
+
 
 void 
 DynamicView::onTrackCountChanged( unsigned int tracks )
 {
-    if ( tracks == 0 )
+    if ( tracks == 0 && !m_working )
     {
         if( m_onDemand ) {
             if( m_readOnly )
@@ -129,8 +140,10 @@ DynamicView::onTrackCountChanged( unsigned int tracks )
         if( !overlay()->shown() )
             overlay()->show();
     }
-    else
+    else {
+        m_working = false;
         overlay()->hide();
+    }
 }
 
 void

src/libtomahawk/playlist/dynamic/DynamicView.h

@@ -43,6 +43,8 @@ public:
     void setOnDemand( bool onDemand );
     void setReadOnly( bool readOnly );
     
+    void setDynamicWorking( bool working );
+    
     virtual void paintEvent(QPaintEvent* event);
     
 public slots:
@@ -68,6 +70,7 @@ private:
     bool m_onDemand;
     bool m_readOnly;
     bool m_checkOnCollapse;
+    bool m_working;
 
     // for collapsing animation
     QPoint m_fadingPointAnchor;

src/libtomahawk/playlist/dynamic/widgets/DynamicWidget.cpp

@@ -39,6 +39,7 @@
 #include <QPainter>
 
 #include "audiocontrols.h"
+#include "LoadingSpinner.h"
 
 using namespace Tomahawk;
 
@@ -58,7 +59,7 @@ DynamicWidget::DynamicWidget( const Tomahawk::dynplaylist_ptr& playlist, QWidget
     m_controls = new CollapsibleControls( this );
     m_layout->addWidget( m_controls );
     setContentsMargins( 0, 0, 0, 1 ); // to align the bottom with the bottom of the sourcelist
-   
+    
     m_model = new DynamicModel( this );
     m_view = new DynamicView( this );
     m_view->setModel( m_model );
@@ -67,7 +68,9 @@ DynamicWidget::DynamicWidget( const Tomahawk::dynplaylist_ptr& playlist, QWidget
     
     connect( m_model, SIGNAL( collapseFromTo( int, int ) ), m_view, SLOT( collapseEntries( int, int ) ) );
     connect( m_model, SIGNAL( trackGenerationFailure( QString ) ), this, SLOT( stationFailed( QString ) ) );    
+    connect( m_model, SIGNAL( firstTrackGenerated() ), this, SLOT( firstStationTrackGenerated() ) );
     
+    m_loading = new LoadingSpinner( m_view ); 
     
     m_setup = new DynamicSetupWidget( playlist, this );
     m_setup->fadeIn();
@@ -140,7 +143,7 @@ DynamicWidget::loadDynamicPlaylist( const Tomahawk::dynplaylist_ptr& playlist )
     m_model->loadPlaylist( m_playlist );
     m_controlsChanged = false;
     m_setup->setPlaylist( m_playlist );
-    
+        
     if( !m_playlist.isNull() )
         m_controls->setControls( m_playlist, m_playlist->author()->isLocal() );
     
@@ -222,6 +225,8 @@ DynamicWidget::generate( int num )
     if( m_playlist->mode() == Static ) 
     {
         // get the items from the generator, and put them in the playlist
+        m_view->setDynamicWorking( true );
+        m_loading->fadeIn();
         m_playlist->generator()->generate( num );
     } else if( m_playlist->mode() == OnDemand ) {
 
@@ -232,6 +237,8 @@ void
 DynamicWidget::stationFailed( const QString& msg )
 {
     m_view->showMessage( msg );
+    m_view->setDynamicWorking( false );
+    m_loading->fadeOut();
     
     stopStation( false );
 }
@@ -252,11 +259,19 @@ DynamicWidget::playPressed()
     if( isVisible() && !m_playlist.isNull() &&
         m_playlist->mode() == OnDemand && !m_runningOnDemand ) {
         
+        m_view->setDynamicWorking( true );
         startStation();
     }
         
 }
 
+void 
+DynamicWidget::firstStationTrackGenerated()
+{
+    m_view->setDynamicWorking( false );
+    m_loading->fadeOut();
+}
+
 
 void 
 DynamicWidget::stopStation( bool stopPlaying )
@@ -304,6 +319,8 @@ DynamicWidget::playlistTypeChanged( QString )
 void 
 DynamicWidget::tracksGenerated( const QList< query_ptr >& queries )
 {
+    m_loading->fadeOut();
+    
     if( m_playlist->author()->isLocal() ) {
         m_playlist->addEntries( queries, m_playlist->currentrevision() );
         m_resolveOnNextLoad = true;
@@ -343,6 +360,11 @@ DynamicWidget::controlChanged( const Tomahawk::dyncontrol_ptr& control )
 void 
 DynamicWidget::generatorError( const QString& title, const QString& content )
 {
+    if( m_runningOnDemand ) {
+        stopStation( false );
+    }
+    m_view->setDynamicWorking( false );
+    m_loading->fadeOut();
     m_view->showMessageTimeout( title, content );
 }
 

src/libtomahawk/playlist/dynamic/widgets/DynamicWidget.h

@@ -23,6 +23,7 @@
 #include "dynamic/DynamicPlaylist.h"
 #include "dynamic/DynamicControl.h"
 
+class LoadingSpinner;
 class QShowEvent;
 class QHideEvent;
 class QSpinBox;
@@ -87,6 +88,7 @@ private slots:
     void generate( int = -1 );
     void tracksGenerated( const QList< Tomahawk::query_ptr>& queries );
     void generatorError( const QString& title, const QString& content );
+    void firstStationTrackGenerated();
     
     void controlsChanged();
     void controlChanged( const Tomahawk::dyncontrol_ptr& control );
@@ -97,6 +99,9 @@ private:
     QVBoxLayout* m_layout;
     bool m_resolveOnNextLoad;
     int m_seqRevLaunched; // if we shoot off multiple createRevision calls, we don'y want to set one of the middle ones
+
+    // loading animation
+    LoadingSpinner* m_loading;
     
     // setup controls
     DynamicSetupWidget* m_setup;