Another performance tweak for busyindicator and alpha-blended bg pixmaps

1 files changed, 17 insertions, 3 deletions

diff --git a/core/launcher/launcherview.cpp b/core/launcher/launcherview.cpp
index 33717bc..e15b150 100644
--- a/core/launcher/launcherview.cpp
+++ b/core/launcher/launcherview.cpp
@@ -47,265 +47,279 @@
 class BgPixmap
 {
 public:
     BgPixmap( const QPixmap &p ) : pm(p), ref(1) {}
     QPixmap pm;
     int ref;
 };
 
 static QMap<QString,BgPixmap*> *bgCache = 0;
 
 class LauncherIconView : public QIconView {
 public:
     LauncherIconView( QWidget* parent, const char* name=0 ) :
 	QIconView(parent,name),
 	tf(""),
 	cf(0),
 	bsy(0),
 	bigIcns(TRUE),
 	bgColor(white)
     {
 	sortmeth = Name;
 	hidden.setAutoDelete(TRUE);
 	ike = FALSE;
 	busytimer = 0;
 	calculateGrid( Bottom );
     }
 
     ~LauncherIconView()
     {
 #if 0 // debuggery
 	QListIterator<AppLnk> it(hidden);
 	AppLnk* l;
 	while ((l=it.current())) {
 	    ++it;
 	    //qDebug("%p: hidden (should remove)",l);
 	}
 #endif
     }
 
     QPixmap* busyPixmap() const { return (QPixmap*)&bpm[::abs(busystate)]; }
     QIconViewItem* busyItem() const { return bsy; }
     void setBigIcons( bool bi ) { bigIcns = bi; }
 
     void updateCategoriesAndMimeTypes();
 
     void doAutoScroll()
     {
 	// We don't want rubberbanding (yet)
     }
 
     void setBusy(bool on)
     {
 	QIconViewItem *c = on ? currentItem() : 0;
 	qDebug ( "set busy %d -> %s", on, c ? c-> text ().latin1() : "(null)" );
 	
 	if ( bsy != c ) {
 	    QIconViewItem *oldbsy = bsy;
 	    bsy = c;
 	
 	    if ( oldbsy )
 		oldbsy-> repaint ( );
 	
 	    if ( bsy ) {
 		QPixmap *src = bsy-> QIconViewItem::pixmap();
 	    	for ( int i = 0; i <= 5; i++ ) {
 		    QImage img = src->convertToImage();
 		    QRgb* rgb;
 		    int count;
 		    if ( img.depth() == 32 ) {
 			rgb = (QRgb*)img.bits();
 			count = img.bytesPerLine()/sizeof(QRgb)*img.height();
 		    } else {
 			rgb = img.colorTable();
 			count = img.numColors();
 		    }
 		    int rc, gc, bc;
 		    int bs = ::abs ( i * 10 ) + 25;
 		    colorGroup().highlight().rgb( &rc, &gc, &bc );
 		    rc = rc * bs / 100;
 		    gc = gc * bs / 100;
 		    bc = bc * bs / 100;
 		
 		    for ( int r = 0; r < count; r++, rgb++ ) {
 			int ri = rc + qRed   ( *rgb ) * ( 100 - bs ) / 100;
 			int gi = gc + qGreen ( *rgb ) * ( 100 - bs ) / 100;
 			int bi = bc + qBlue  ( *rgb ) * ( 100 - bs ) / 100;
 			int ai = qAlpha ( *rgb );
 			*rgb = qRgba ( ri, gi, bi, ai );
 		    }
 
 		    bpm [i].convertFromImage( img );
 		}
 	    	busystate = 0;	
 	    	if ( busytimer )
 	    	    killTimer ( busytimer );
 	    	timerEvent ( 0 );
-	    	busytimer = startTimer ( 180 );
+	    	busytimer = startTimer ( 200 );
 	    }
 	    else {
 		killTimer ( busytimer );
 		busytimer = 0;
 	    }
 	}
     }
 
     virtual void timerEvent ( QTimerEvent *te )
     {
 	if ( !te || ( te-> timerId ( ) == busytimer )) {
 	    if ( bsy ) {
 		busystate++;
 		if ( busystate > 5 )
 			busystate = -4;
 			
-		bsy-> repaint ( );
+		QScrollView::updateContents ( bsy-> pixmapRect ( false ));
 	    }
 	}
     }
 
     bool inKeyEvent() const { return ike; }
     void keyPressEvent(QKeyEvent* e)
     {
 	ike = TRUE;
 	if ( e->key() == Key_F33 /* OK button */ || e->key() == Key_Space )
 	    returnPressed(currentItem());
 	QIconView::keyPressEvent(e);
 	ike = FALSE;
     }
 
     void addItem(AppLnk* app, bool resort=TRUE);
     bool removeLink(const QString& linkfile);
 
     QStringList mimeTypes() const;
     QStringList categories() const;
 
     void clear()
     {
 	mimes.clear();
 	cats.clear();
 	QIconView::clear();
 	hidden.clear();
     }
 
     void addCatsAndMimes(AppLnk* app)
     {
 	// 	QStringList c = app->categories();
 	// 	for (QStringList::ConstIterator cit=c.begin(); cit!=c.end(); ++cit) {
 	// 	    cats.replace(*cit,(void*)1);
 	// 	}
 	QString maj=app->type();
 	int sl=maj.find('/');
 	if (sl>=0) {
 	    QString k;
 	    k = maj.left(12) == "application/" ? maj : maj.left(sl);
 	    mimes.replace(k,(void*)1);
 	}
     }
 
     void setBackgroundPixmap( const QPixmap &pm ) {
+	if ( pm. isNull ( )) {
 	bgPixmap = pm;
     }
+	else {    
+	    // This is need for bg images with alpha channel	
+	
+	    QPixmap tmp ( pm. size ( ), pm. depth ( ));
+    	
+	    QPainter p ( &tmp );
+	    p. fillRect ( 0, 0, pm. width ( ), pm. height ( ), bgColor. isValid ( ) ? bgColor : white );
+	    p. drawPixmap ( 0, 0, pm );    	
+	    p. end ( );
+    
+	   bgPixmap = tmp;
+	}
+    }
 
     void setBackgroundColor( const QColor &c ) {
 	bgColor = c;
     }
 
     void drawBackground( QPainter *p, const QRect &r )
     {
 	if ( !bgPixmap.isNull() ) {
-	    p-> fillRect ( r, bgColor );
+	    //p-> fillRect ( r, bgColor );
 	    p->drawTiledPixmap( r, bgPixmap,
                    QPoint( (r.x() + contentsX()) % bgPixmap.width(),
                            (r.y() + contentsY()) % bgPixmap.height() ) );
 	} else {
 	    p->fillRect( r, bgColor );
 	}
     }
 
     void setItemTextPos( ItemTextPos pos )
     {
 	calculateGrid( pos );
 	QIconView::setItemTextPos( pos );
     }
 
     void hideOrShowItems(bool resort);
 
     void setTypeFilter(const QString& typefilter, bool resort)
     {
 	tf = QRegExp(typefilter,FALSE,TRUE);
 	hideOrShowItems(resort);
     }
 
     void setCategoryFilter( int catfilter, bool resort )
     {
 	Categories cat;
 	cat.load( categoryFileName() );
 	QString str;
 	if ( catfilter == -2 )
 	    cf = 0;
 	else
 	    cf = catfilter;
 	hideOrShowItems(resort);
     }
 
     enum SortMethod { Name, Date, Type };
 
     void setSortMethod( SortMethod m )
     {
 	if ( sortmeth != m ) {
 	    sortmeth = m;
 	    sort();
 	}
     }
 
     int compare(const AppLnk* a, const AppLnk* b)
     {
 	switch (sortmeth) {
 	case Name:
 	    return a->name().compare(b->name());
 	case Date: {
 	    QFileInfo fa(a->linkFileKnown() ? a->linkFile() : a->file());
 	    QFileInfo fb(b->linkFileKnown() ? b->linkFile() : b->file());
 	    return fa.lastModified().secsTo(fb.lastModified());
 	}
 	case Type:
 	    return a->type().compare(b->type());
 	}
 	return 0;
     }
 
     QString getAllDocLinkInfo() const;
 
 protected:
 
     void styleChange( QStyle &old )
     {
 	QIconView::styleChange( old );
 	calculateGrid( itemTextPos() );
     }
 
     void calculateGrid( ItemTextPos pos )
     {
 	int dw = QApplication::desktop()->width();
 	int viewerWidth = dw-style().scrollBarExtent().width();
 	if ( pos == Bottom ) {
 	    int cols = 3;
 	    if ( viewerWidth <= 200 )
 		cols = 2;
 	    else if ( viewerWidth >= 400 )
 		 cols = viewerWidth/96;
 	    setSpacing( 4 );
 	    setGridX( (viewerWidth-(cols+1)*spacing())/cols );
 	    setGridY( fontMetrics().height()*2+24 );
 	} else {
 	    int cols = 2;
 	    if ( viewerWidth < 150 )
 		cols = 1;
 	    else if ( viewerWidth >= 400 )
 		 cols = viewerWidth/150;
 	    setSpacing( 2 );
 	    setGridX( (viewerWidth-(cols+1)*spacing())/cols );
 	    setGridY( fontMetrics().height()+2 );
 	}
     }
 
 private: