* Added global common image cache.

src/audiocontrols.cpp

@@ -100,8 +100,6 @@ AudioControls::AudioControls( QWidget* parent )
     m_sliderTimeLine.setCurveShape( QTimeLine::LinearCurve );
     ui->seekSlider->setTimeLine( &m_sliderTimeLine );
 
-    m_defaultCover = QPixmap( RESPATH "images/no-album-no-case.png" ).scaled( ui->coverImage->size(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
-
     connect( &m_phononTickCheckTimer, SIGNAL( timeout() ), SLOT( phononTickCheckTimeout() ) );
     connect( &m_sliderTimeLine,    SIGNAL( frameChanged( int ) ), ui->seekSlider, SLOT( setValue( int ) ) );
 
@@ -271,7 +269,7 @@ AudioControls::setAlbumCover()
         ui->coverImage->setPixmap( cover );
     }
     else
-        ui->coverImage->setPixmap( m_defaultCover );
+        ui->coverImage->setPixmap( TomahawkUtils::defaultPixmap( TomahawkUtils::DefaultAlbumCover, TomahawkUtils::ScaledCover, ui->coverImage->size() ) );
 }
 
 

src/audiocontrols.h

@@ -91,8 +91,6 @@ private:
 
     Ui::AudioControls *ui;
 
-    QPixmap m_defaultCover;
-
     Tomahawk::result_ptr m_currentTrack;
     Tomahawk::PlaylistInterface::RepeatMode m_repeatMode;
     bool m_shuffled;

src/libtomahawk/album.cpp

@@ -122,29 +122,29 @@ Album::cover( const QSize& size, bool forceLoad ) const
         Tomahawk::InfoSystem::InfoSystem::instance()->getInfo( requestData );
     }
 
-    if ( !m_cover )
-        m_cover = new QPixmap();
-
-    if ( m_cover->isNull() && !m_coverBuffer.isEmpty() )
+    if ( !m_cover && !m_coverBuffer.isEmpty() )
     {
+        m_cover = new QPixmap();
         m_cover->loadFromData( m_coverBuffer );
     }
 
-    if ( !m_cover->isNull() && !size.isEmpty() )
+    if ( m_cover && !m_cover->isNull() && !size.isEmpty() )
     {
         if ( m_coverCache.contains( size.width() ) )
         {
             return m_coverCache.value( size.width() );
         }
-        else
-        {
-            QPixmap scaledCover;
-            scaledCover = m_cover->scaled( size, Qt::KeepAspectRatio, Qt::SmoothTransformation );
-            m_coverCache.insert( size.width(), scaledCover );
-        }
+
+        QPixmap scaledCover;
+        scaledCover = m_cover->scaled( size, Qt::KeepAspectRatio, Qt::SmoothTransformation );
+        m_coverCache.insert( size.width(), scaledCover );
+        return scaledCover;
     }
 
-    return *m_cover;
+    if ( m_cover )
+        return *m_cover;
+    else
+        return QPixmap();
 }
 #endif
 

src/libtomahawk/artist.cpp

@@ -113,29 +113,29 @@ Artist::cover( const QSize& size, bool forceLoad ) const
         Tomahawk::InfoSystem::InfoSystem::instance()->getInfo( requestData );
     }
 
-    if ( !m_cover )
-        m_cover = new QPixmap();
-
-    if ( m_cover->isNull() && !m_coverBuffer.isEmpty() )
+    if ( !m_cover && !m_coverBuffer.isEmpty() )
     {
+        m_cover = new QPixmap();
         m_cover->loadFromData( m_coverBuffer );
     }
 
-    if ( !m_cover->isNull() && !size.isEmpty() )
+    if ( m_cover && !m_cover->isNull() && !size.isEmpty() )
     {
         if ( m_coverCache.contains( size.width() ) )
         {
             return m_coverCache.value( size.width() );
         }
-        else
-        {
-            QPixmap scaledCover;
-            scaledCover = m_cover->scaled( size, Qt::KeepAspectRatio, Qt::SmoothTransformation );
-            m_coverCache.insert( size.width(), scaledCover );
-        }
+
+        QPixmap scaledCover;
+        scaledCover = m_cover->scaled( size, Qt::KeepAspectRatio, Qt::SmoothTransformation );
+        m_coverCache.insert( size.width(), scaledCover );
+        return scaledCover;
     }
 
-    return *m_cover;
+    if ( m_cover )
+        return *m_cover;
+    else
+        return QPixmap();
 }
 #endif
 

src/libtomahawk/playlist/albumitemdelegate.cpp

@@ -40,7 +40,6 @@ AlbumItemDelegate::AlbumItemDelegate( QAbstractItemView* parent, AlbumProxyModel
     , m_view( parent )
     , m_model( proxy )
 {
-    m_defaultCover = QPixmap( RESPATH "images/no-album-art-placeholder.png" );
 }
 
 
@@ -94,15 +93,14 @@ AlbumItemDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option,
     if ( !item->album().isNull() )
     {
         cover = item->album()->cover( r.size() );
+        if ( cover.isNull() )
+            cover = TomahawkUtils::defaultPixmap( TomahawkUtils::DefaultAlbumCover, TomahawkUtils::CoverInCase, r.size() );
     }
     else if ( !item->artist().isNull() )
     {
         cover = item->artist()->cover( r.size() );
     }
 
-    if ( cover.isNull() )
-        cover = m_defaultCover;
-
     if ( option.state & QStyle::State_Selected )
     {
 #if defined(Q_WS_MAC) || defined(Q_WS_WIN)

src/libtomahawk/playlist/albumitemdelegate.h

@@ -53,7 +53,6 @@ private:
     QPersistentModelIndex m_hoveringOver;
 
     QPixmap m_shadowPixmap;
-    QPixmap m_defaultCover;
 };
 
 #endif // ALBUMITEMDELEGATE_H

src/libtomahawk/playlist/treeitemdelegate.cpp

@@ -156,18 +156,14 @@ TreeItemDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option,
     if ( !item->album().isNull() )
     {
         cover = item->album()->cover( r.size(), false );
+        if ( cover.isNull() )
+            cover = TomahawkUtils::defaultPixmap( TomahawkUtils::DefaultAlbumCover, TomahawkUtils::ScaledCover, r.size() );
     }
     else if ( !item->artist().isNull() )
     {
         cover = item->artist()->cover( r.size(), false );
-    }
-
-    if ( cover.isNull() )
-    {
-        if ( !item->artist().isNull() )
-            cover = m_defaultArtistImage;
-        else
-            cover = m_defaultAlbumCover;
+        if ( cover.isNull() )
+            cover = TomahawkUtils::defaultPixmap( TomahawkUtils::DefaultArtistImage, TomahawkUtils::ScaledCover, r.size() );
     }
 
     painter->drawPixmap( r, cover );

src/libtomahawk/utils/tomahawkutils.h

@@ -42,6 +42,18 @@ namespace TomahawkUtils
         MediaTypeTrack
     };
 
+    enum ImageType
+    {
+        DefaultAlbumCover,
+        DefaultArtistImage
+    };
+    enum ImageMode
+    {
+        NoDefaultCover,
+        CoverInCase,
+        ScaledCover
+    };
+
     class DLLEXPORT NetworkProxyFactory : public QNetworkProxyFactory
     {
     public:

src/libtomahawk/utils/tomahawkutilsgui.cpp

@@ -36,6 +36,8 @@
     #include <windowsx.h>
 #endif
 
+#include "logger.h"
+
 namespace TomahawkUtils
 {
 static int s_headerHeight = 0;
@@ -83,15 +85,15 @@ createDragPixmap( MediaType type, int itemCount )
     QPixmap pixmap;
     switch ( type )
     {
-    case MediaTypeArtist:
-        pixmap = QPixmap( ":/data/images/artist-icon.png" ).scaledToWidth( size, Qt::SmoothTransformation );
-        break;
-    case MediaTypeAlbum:
-        pixmap = QPixmap( ":/data/images/album-icon.png" ).scaledToWidth( size, Qt::SmoothTransformation );
-        break;
-    case MediaTypeTrack:
-        pixmap = QPixmap( QString( ":/data/images/track-icon-%2x%2.png" ).arg( size ) );
-        break;
+        case MediaTypeArtist:
+            pixmap = QPixmap( ":/data/images/artist-icon.png" ).scaledToWidth( size, Qt::SmoothTransformation );
+            break;
+        case MediaTypeAlbum:
+            pixmap = QPixmap( ":/data/images/album-icon.png" ).scaledToWidth( size, Qt::SmoothTransformation );
+            break;
+        case MediaTypeTrack:
+            pixmap = QPixmap( QString( ":/data/images/track-icon-%2x%2.png" ).arg( size ) );
+            break;
     }
 
     int x = 0;
@@ -303,4 +305,59 @@ alphaBlend( const QColor& colorFrom, const QColor& colorTo, float opacity )
     return QColor( r, g, b );
 }
 
+
+QPixmap
+defaultPixmap( ImageType type, ImageMode mode, const QSize& size )
+{
+    QPixmap pixmap;
+    QHash< int, QPixmap > subsubcache;
+    QHash< int, QHash< int, QPixmap > > subcache;
+    static QHash< int, QHash< int, QHash< int, QPixmap > > > cache;
+
+    if ( cache.contains( type ) )
+    {
+        subcache = cache.value( type );
+
+        if ( subcache.contains( mode ) )
+        {
+            subsubcache = subcache.value( mode );
+            
+            if ( subsubcache.contains( size.width() ) )
+                return subsubcache.value( size.width() );
+        }
+    }
+
+    switch ( type )
+    {
+        case DefaultAlbumCover:
+            if ( mode == CoverInCase )
+                pixmap = QPixmap( RESPATH "images/no-album-art-placeholder.png" );
+            else
+                pixmap = QPixmap( RESPATH "images/no-album-no-case.png" );
+            break;
+
+        case DefaultArtistImage:
+                pixmap = QPixmap( RESPATH "images/no-artist-image-placeholder.png" );
+            break;
+            
+        default:
+            break;
+    }
+
+    if ( pixmap.isNull() )
+    {
+        Q_ASSERT( false );
+        return QPixmap();
+    }
+
+    if ( !size.isNull() )
+        pixmap = pixmap.scaled( size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
+    
+    subsubcache.insert( size.width(), pixmap );
+    subcache.insert( mode, subsubcache );
+    cache.insert( type, subcache );
+
+    return pixmap;
+}
+
 } // ns

src/libtomahawk/utils/tomahawkutilsgui.h

@@ -19,6 +19,8 @@
 #ifndef TOMAHAWKUTILSGUI_H
 #define TOMAHAWKUTILSGUI_H
 
+#include <QSize>
+
 #include "tomahawkutils.h"
 #include "dllmacro.h"
 
@@ -46,6 +48,8 @@ namespace TomahawkUtils
 
     DLLEXPORT int headerHeight();
     DLLEXPORT void setHeaderHeight( int height );
+    
+    DLLEXPORT QPixmap defaultPixmap( ImageType type, ImageMode mode, const QSize& size = QSize( 0, 0 ) );
 }
 
 #endif // TOMAHAWKUTILSGUI_H

src/libtomahawk/widgets/infowidgets/AlbumInfoWidget.cpp

@@ -61,7 +61,7 @@ AlbumInfoWidget::AlbumInfoWidget( const Tomahawk::album_ptr& album, ModelMode st
     ui->tracksView->setTreeModel( m_tracksModel );
     ui->tracksView->setRootIsDecorated( false );
 
-    m_pixmap = QPixmap( RESPATH "images/no-album-art-placeholder.png" ).scaledToWidth( 48, Qt::SmoothTransformation );
+    m_pixmap = TomahawkUtils::defaultPixmap( TomahawkUtils::DefaultArtistImage, TomahawkUtils::ScaledCover, QSize( 48, 48 ) );
 
     m_button = new OverlayButton( ui->tracksView );
     m_button->setCheckable( true );

src/libtomahawk/widgets/infowidgets/ArtistInfoWidget.cpp

@@ -77,7 +77,7 @@ ArtistInfoWidget::ArtistInfoWidget( const Tomahawk::artist_ptr& artist, QWidget*
     ui->topHits->setTrackModel( m_topHitsModel );
     ui->topHits->setSortingEnabled( false );
 
-    m_pixmap = QPixmap( RESPATH "images/no-album-no-case.png" ).scaledToWidth( 48, Qt::SmoothTransformation );
+    m_pixmap = TomahawkUtils::defaultPixmap( TomahawkUtils::DefaultArtistImage, TomahawkUtils::ScaledCover, QSize( 48, 48 ) );
 
     m_button = new OverlayButton( ui->albums );
     m_button->setText( tr( "Click to show Super Collection Albums" ) );