src/systray.cpp

   1 //
   2 // AmarokSystray
   3 //
   4 // Contributors: Stanislav Karchebny <berkus@users.sf.net>, (C) 2003
   5 //               berkus, mxcl, eros, eean
   6 //
   7 // Copyright: like rest of Amarok
   8 //
   9
  10 #include "systray.h"
  11
  12 #include "amarok.h"
  13 #include "amarokconfig.h"
  14 #include "enginecontroller.h"
  15 #include "meta/meta.h"
  16
  17 #include <KAction>
  18 #include <KApplication>
  19 #include <KIconEffect>
  20 #include <KMenu>
  21 #include <KStandardDirs>
  22
  23 #include <QEvent>
  24 #include <QImage>
  25 #include <QMouseEvent>
  26 #include <QPixmap>
  27 #include <QTimerEvent>
  28
  29
  30 namespace Amarok
  31 {
  32     static QImage
  33     loadOverlay( const char *iconName )
  34     {
  35         return QImage( KStandardDirs::locate( "data", QString( "amarok/images/b_%1.png" ).arg( iconName ) ), "PNG" )
  36                                                       .scaled( 10, 10, Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
  37     }
  38 }
  39
  40
  41 Amarok::TrayIcon::TrayIcon( QWidget *playerWidget )
  42         : KSystemTrayIcon( playerWidget )
  43         , EngineObserver( EngineController::instance() )
  44         , trackLength( 0 )
  45         , mergeLevel( -1 )
  46         , overlay( 0 )
  47         , blinkTimerID( 0 )
  48         , overlayVisible( false )
  49         , m_lastFmMode( false )
  50 {
  51     KActionCollection* const ac = Amarok::actionCollection();
  52
  53     //setAcceptDrops( true );
  54
  55     contextMenu()->addAction( ac->action( "prev"       ) );
  56     contextMenu()->addAction( ac->action( "play_pause" ) );
  57     contextMenu()->addAction( ac->action( "play_pause" ) );
  58     contextMenu()->addAction( ac->action( "next"       ) );
  59
  60     //seems to be necessary
  61     QAction *quit = actionCollection()->action( "file_quit" );
  62     quit->disconnect();
  63     connect( quit, SIGNAL(activated()), kapp, SLOT(quit()) );
  64
  65     baseIcon     = KSystemTrayIcon::loadIcon( "amarok" );
  66     playOverlay  = Amarok::loadOverlay( "play" );
  67     pauseOverlay = Amarok::loadOverlay( "pause" );
  68     overlayVisible = false;
  69
  70     //paintIcon();
  71     setIcon( baseIcon );
  72 }
  73
  74 bool
  75 Amarok::TrayIcon::event( QEvent *e )
  76 {
  77     switch( e->type() )
  78     {
  79     case QEvent::Drop:
  80     case QEvent::Wheel:
  81     case QEvent::DragEnter:
  82         //return Amarok::genericEventHandler( this, e );
  83         ;
  84     case QEvent::Timer:
  85         if( static_cast<QTimerEvent*>(e)->timerId() != blinkTimerID )
  86             return KSystemTrayIcon::event( e );
  87
  88         // if we're playing, blink icon
  89         if ( overlay == &playOverlay )
  90         {
  91             overlayVisible = !overlayVisible;
  92             paintIcon( mergeLevel, true );
  93         }
  94
  95         return true;
  96
  97     case QEvent::MouseButtonPress:
  98         if( static_cast<QMouseEvent*>(e)->button() == Qt::MidButton )
  99         {
 100             EngineController::instance()->playPause();
 101
 102             return true;
 103         }
 104
 105         //else FALL THROUGH
 106
 107     default:
 108         return KSystemTrayIcon::event( e );
 109     }
 110 }
 111
 112 void
 113 Amarok::TrayIcon::engineStateChanged( Engine::State state, Engine::State /*oldState*/ )
 114 {
 115     // stop timer
 116     if ( blinkTimerID )
 117     {
 118         killTimer( blinkTimerID );
 119         blinkTimerID = 0;
 120     }
 121     // draw overlay
 122     overlayVisible = true;
 123
 124     // draw the right overlay for each state
 125     switch( state )
 126     {
 127     case Engine::Paused:
 128         overlay = &pauseOverlay;
 129         paintIcon( mergeLevel, true );
 130         break;
 131
 132     case Engine::Playing:
 133         overlay = &playOverlay;
 134         if( AmarokConfig::animateTrayIcon() )
 135            blinkTimerID = startTimer( 1500 );  // start 'blink' timer
 136
 137         paintIcon( mergeLevel, true ); // repaint the icon
 138         break;
 139
 140     case Engine::Empty:
 141         overlayVisible = false;
 142         paintIcon( -1, true ); // repaint the icon
 143                                // fall through to default:
 144     default:
 145         setLastFm( false );
 146     }
 147 }
 148
 149 void
 150 Amarok::TrayIcon::engineNewMetaData( const QHash<qint64, QString> &newMetaData, bool trackChanged )
 151 {
 152     Q_UNUSED( trackChanged )
 153     Q_UNUSED( newMetaData )
 154     Meta::TrackPtr track = EngineController::instance()->currentTrack();
 155     if( !track )
 156         return;
 157     trackLength = track->length() * 1000;
 158     setLastFm( track->type() == "stream/lastfm" );
 159 }
 160
 161 void
 162 Amarok::TrayIcon::engineTrackPositionChanged( long position, bool /*userSeek*/ )
 163 {
 164 /*
 165     mergeLevel = trackLength ? ((baseIcon.height() + 1) * position) / trackLength : -1;
 166     paintIcon( mergeLevel );
 167 */
 168 }
 169
 170
 171 void
 172 Amarok::TrayIcon::paletteChange( const QPalette & op )
 173 {
 174 /*
 175     if ( palette().active().highlight() == op.active().highlight() || alternateIcon.isNull() )
 176         return;
 177
 178     alternateIcon.resize( 0, 0 );
 179     paintIcon( mergeLevel, true );
 180 */
 181 }
 182
 183 void
 184 Amarok::TrayIcon::paintIcon( int mergePixels, bool force )
 185 {
 186     // skip redrawing the same pixmap
 187     static int mergePixelsCache = 0;
 188     if ( mergePixels == mergePixelsCache && !force )
 189          return;
 190     mergePixelsCache = mergePixels;
 191
 192     if ( mergePixels < 0 ) {}
 193         //return blendOverlay( baseIcon );
 194
 195     // make up the grayed icon
 196     if ( grayedIcon.isNull() )
 197     {
 198         //QImage tmpTrayIcon = baseIcon.convertToImage();
 199         //KIconEffect::semiTransparent( tmpTrayIcon );
 200         //grayedIcon = tmpTrayIcon;
 201     }
 202
 203     // make up the alternate icon (use hilight color but more saturated)
 204     if ( alternateIcon.isNull() )
 205     {
 206         #if 0
 207         QImage tmpTrayIcon = baseIcon.convertToImage();
 208         // eros: this looks cool with dark red blue or green but sucks with
 209         // other colors (such as kde default's pale pink..). maybe the effect
 210         // or the blended color has to be changed..
 211         QColor saturatedColor = palette().active().highlight();
 212         int hue, sat, value;
 213         saturatedColor.getHsv( &hue, &sat, &value );
 214         saturatedColor.setHsv( hue, sat > 200 ? 200 : sat, value < 100 ? 100 : value );
 215         KIconEffect::colorize( tmpTrayIcon, saturatedColor/* Qt::blue */, 0.9 );
 216         alternateIcon = tmpTrayIcon;
 217         #endif
 218     }
 219
 220     if ( mergePixels >= alternateIcon.height() ) {}
 221         //return blendOverlay( grayedIcon );
 222     if ( mergePixels == 0 ) {}
 223         //return blendOverlay( alternateIcon );
 224
 225     // mix [ grayed <-> colored ] icons
 226     QPixmap tmpTrayPixmap = alternateIcon;
 227     copyBlt( &tmpTrayPixmap, 0,0, &grayedIcon, 0,0,
 228             alternateIcon.width(), mergePixels>0 ? mergePixels-1 : 0 );
 229     blendOverlay( tmpTrayPixmap );
 230 }
 231
 232 void
 233 Amarok::TrayIcon::blendOverlay( QPixmap &sourcePixmap )
 234 {
 235     #if 0
 236     if ( !overlayVisible || !overlay || overlay->isNull() )
 237         return setPixmap( sourcePixmap ); // @since 3.2
 238
 239     // here comes the tricky part.. no kdefx functions are helping here.. :-(
 240     // we have to blend pixmaps with different sizes (blending will be done in
 241     // the bottom-left corner of source pixmap with a smaller overlay pixmap)
 242     int opW = overlay->width(),
 243         opH = overlay->height(),
 244         opX = 1,
 245         opY = sourcePixmap.height() - opH;
 246
 247     // get the rectangle where blending will take place
 248     QPixmap sourceCropped( opW, opH, sourcePixmap.depth() );
 249     copyBlt( &sourceCropped, 0,0, &sourcePixmap, opX,opY, opW,opH );
 250
 251     //speculative fix for a bactrace we received
 252     //crash was in covertToImage() somewhere in this function
 253     if( sourceCropped.isNull() )
 254         return setPixmap( sourcePixmap );
 255
 256     // blend the overlay image over the cropped rectangle
 257     QImage blendedImage = sourceCropped.convertToImage();
 258     QImage overlayImage = overlay->convertToImage();
 259     KIconEffect::overlay( blendedImage, overlayImage );
 260     sourceCropped.convertFromImage( blendedImage );
 261
 262     // put back the blended rectangle to the original image
 263     QPixmap sourcePixmapCopy = sourcePixmap;
 264     copyBlt( &sourcePixmapCopy, opX,opY, &sourceCropped, 0,0, opW,opH );
 265
 266     setPixmap( sourcePixmapCopy ); // @since 3.2
 267     #endif
 268 }
 269
 270 void
 271 Amarok::TrayIcon::setLastFm( bool lastFmActive )
 272 {
 273     if( lastFmActive == m_lastFmMode ) return;
 274
 275     static int separatorId = 0;
 276
 277     KActionCollection* const ac = Amarok::actionCollection();
 278     if( ac->action( "ban" ) == 0 ) return; //if the LastFm::Controller doesn't exist yet
 279
 280     if( lastFmActive )
 281     {
 282         contextMenu()->removeAction( ac->action( "play_pause" ) );
 283         // items are inserted in reverse order!
 284         contextMenu()->addAction( ac->action( "ban" ) );
 285         contextMenu()->addAction( ac->action( "love" ) );
 286         contextMenu()->addAction( ac->action( "skip" ) );
 287         contextMenu()->addSeparator();
 288
 289         m_lastFmMode = true;
 290     }
 291     else
 292     {
 293
 294         contextMenu()->addAction( ac->action( "play_pause" ) );
 295         // items are inserted in reverse order!
 296         contextMenu()->removeAction( ac->action( "ban" ) );
 297         contextMenu()->removeAction( ac->action( "love" ) );
 298         contextMenu()->removeAction( ac->action( "skip" ) );
 299
 300         //contextMenu()->removeSeparator();
 301         m_lastFmMode = false;
 302    }
 303 }