- fix for the busy indicator timer, in case someone switches to non-blink

  style, while the indicator is blinking
- the launcher QIconView is now drawn flickerfree into a background QPixmap

1 files changed, 50 insertions, 7 deletions

diff --git a/core/launcher/launcherview.cpp b/core/launcher/launcherview.cpp
index 6e63fca..9fc4565 100644
--- a/core/launcher/launcherview.cpp
+++ b/core/launcher/launcherview.cpp
@@ -99,76 +99,77 @@ public:
     void doAutoScroll()
     {
         // We don't want rubberbanding (yet)
     }
 
     void setBusy(bool on)
     {
         QIconViewItem *c = on ? currentItem() : 0;
         
         if ( bsy != c ) {
             QIconViewItem *oldbsy = bsy;
             bsy = c;
         
             if ( oldbsy )
                 oldbsy-> repaint ( );
         
+            if ( busytimer ) {
+                killTimer ( busytimer );
+                busytimer = 0;
+            }
+            
             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 );
                 }
+                    
                 if ( busyType == BIT_Blinking ) {
                             busystate = 0;
-                    if ( busytimer )
-                        killTimer ( busytimer );
                     busytimer = startTimer ( 200 );
                 }
-                else
+                        else {      
                     busystate = 3;
+                }
                 timerEvent ( 0 );
             }
-            else {
-                killTimer ( busytimer );
-                busytimer = 0;
-            }
         }
     }
 
     virtual void timerEvent ( QTimerEvent *te )
     {
         if ( !te || ( te-> timerId ( ) == busytimer )) {
             if ( bsy ) {
                 busystate++;
                 if ( busystate > 5 )
                         busystate = -4;
                         
                 QScrollView::updateContents ( bsy-> pixmapRect ( false ));
             }
         }
     }
 
@@ -319,32 +320,73 @@ protected:
                  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 );
         }
     }
 
+
+    // flicker free redrawing of busy indicator
+    // code was taken from QScrollView::viewportPaintEvent
+        void viewportPaintEvent( QPaintEvent* pe )
+        {
+                static QPixmap *pix = new QPixmap ( );
+
+                QWidget* vp = viewport();
+
+                if ( vp-> size ( ) != pix-> size ( ))
+                        pix-> resize ( vp-> size ( ));
+
+                QPainter p(pix, vp);
+                QRect r = pe->rect();
+                if ( clipper ( ) != vp ) {
+                        QRect rr(
+                                -vp->x(), -vp->y(),
+                                clipper()->width(), clipper()->height()
+                        );
+                        r &= rr;
+                        if ( r.isValid() ) {
+                                int ex = r.x() + vp->x() + contentsX();
+                                int ey = r.y() + vp->y() + contentsY();
+                                int ew = r.width();
+                                int eh = r.height();
+                                drawContentsOffset(&p,
+                                        contentsX()+vp->x(),
+                                        contentsY()+vp->y(),
+                                        ex, ey, ew, eh);
+                        }
+                } else {
+                        r &= clipper()->rect();
+                        int ex = r.x() + contentsX();
+                        int ey = r.y() + contentsY();
+                        int ew = r.width();
+                        int eh = r.height();
+                        drawContentsOffset(&p, contentsX(), contentsY(), ex, ey, ew, eh);
+                }
+                bitBlt ( vp, r.topLeft(), pix, r );
+        }
+                                                                                                                                                                                     
 private:
     QList<AppLnk> hidden;
     QDict<void> mimes;
     QDict<void> cats;
     SortMethod sortmeth;
     QRegExp tf;
     int cf;
     QIconViewItem* bsy;
     bool ike;
     bool bigIcns;
     QPixmap bgPixmap;
     QPixmap bpm [6];
     QColor bgColor;
     int busytimer;
     int busystate;
     BusyIndicatorType busyType;
@@ -918,16 +960,17 @@ void LauncherView::paletteChange( const QPalette &p )
     QVBox::paletteChange( p );
     if ( bgType == Ruled )
         setBackgroundType( Ruled, QString::null );
     QColorGroup cg = icons->colorGroup();
     cg.setColor( QColorGroup::Text, textCol );
     icons->setPalette( QPalette(cg,cg,cg) );
 }
 
 
 void LauncherView::setBusyIndicatorType ( const QString &type )
 {
     if ( type. lower ( ) == "blink" )
         icons-> setBusyIndicatorType ( BIT_Blinking );
     else
         icons-> setBusyIndicatorType ( BIT_Normal );
 }
+