Optimizations for the new busy indicator:

 - QPixmaps are buffered now
 - real fix for the startTimer 100% cpu-load bug (was a typo)

1 files changed, 36 insertions, 35 deletions

diff --git a/core/launcher/launcherview.cpp b/core/launcher/launcherview.cpp
index dbcb0d7..5daaeff 100644
--- a/core/launcher/launcherview.cpp
+++ b/core/launcher/launcherview.cpp
@@ -1,893 +1,894 @@
 /**********************************************************************
 ** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
 **
 ** This file is part of the Qtopia Environment.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
 **
 ** Contact info@trolltech.com if any conditions of this licensing are
 ** not clear to you.
 **
 **********************************************************************/
 
 #include "launcherview.h"
 
 #include <qpe/qpeapplication.h>
 #include <qpe/applnk.h>
 #include <qpe/qpedebug.h>
 #include <qpe/categories.h>
 #include <qpe/categoryselect.h>
 #include <qpe/menubutton.h>
 #include <qpe/mimetype.h>
 #include <qpe/resource.h>
 #include <qpe/qpetoolbar.h>
 //#include <qtopia/private/palmtoprecord.h>
 
 #include <qtimer.h>
 #include <qtextstream.h>
 #include <qdict.h>
 #include <qfile.h>
 #include <qfileinfo.h>
 #include <qhbox.h>
 #include <qiconview.h>
 #include <qpainter.h>
 #include <qregexp.h>
 #include <qtoolbutton.h>
 #include <qimage.h>
 
 
 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; }
+    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;
         if ( bsy != c ) {
             if ( bsy )
                 bsy-> repaint ( );
             bsy = c;
         
             if ( bsy ) {
+                    busystate = 5;
+                    for ( int i = 0; i <= 5; i++ )
+                        bpm [i] = QPixmap ( );
+                    timerEvent ( 0 );
                     busytimer = startTimer ( 150 );
-                    busystate = 50;
-                // not sure what this startTimer is for, maybe i am just to tired. But 
-                // currently that causes 100% cpuload on app launch
-                //startTimer ( 0 );
             }
             else
                 killTimer ( busytimer );
         }
     }
 
     virtual void timerEvent ( QTimerEvent *te )
     {
         if ( !te || ( te-> timerId ( ) == busytimer )) {
             if ( bsy ) {
-                QPixmap *src = bsy-> QIconViewItem::pixmap();
-                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 ( busystate ) + 25;
-                colorGroup().highlight().rgb( &rc, &gc, &bc );
-                rc = rc * bs / 100;
-                gc = gc * bs / 100;
-                bc = bc * bs / 100;
+                if ( bpm [::abs(busystate)]. isNull ( )) {
+                    QPixmap *src = bsy-> QIconViewItem::pixmap();
+                    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 ( busystate * 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 );
+                    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 [::abs(busystate)].convertFromImage( img );
                 }
-
-                bpm.convertFromImage( img );
-                
                 bsy-> repaint ( );
 
-                busystate += 10;
-                if ( busystate > 50 )
-                        busystate = -40;
+                busystate++;
+                if ( busystate > 5 )
+                        busystate = -4;
             }
         }
     }
 
     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 ) {
         bgPixmap = pm;
     }
 
     void setBackgroundColor( const QColor &c ) {
         bgColor = c;
     }
 
     void drawBackground( QPainter *p, const QRect &r )
     {
         if ( !bgPixmap.isNull() ) {
            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:
     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;
+    QPixmap bpm [6];
     QColor bgColor;
     int busytimer;
     int busystate;
 };
 
 
 bool LauncherView::bsy=FALSE;
 
 void LauncherView::setBusy(bool on)
 {
     icons->setBusy(on);
 }
 
 class LauncherItem : public QIconViewItem
 {
 public:
     LauncherItem( QIconView *parent, AppLnk* applnk, bool bigIcon=TRUE );
     ~LauncherItem()
     {
         LauncherIconView* liv = (LauncherIconView*)iconView();
         if ( liv->busyItem() == this )
             liv->setBusy(FALSE);
         delete app;
     }
 
     AppLnk* appLnk() const { return app; }
     AppLnk* takeAppLnk() { AppLnk* r=app; app=0; return r; }
 
     virtual int compare ( QIconViewItem * i ) const;
 
     void paintItem( QPainter *p, const QColorGroup &cg )
     {
         LauncherIconView* liv = (LauncherIconView*)iconView();
         QBrush oldBrush( liv->itemTextBackground() );
         QColorGroup mycg( cg );
         if ( liv->currentItem() == this ) {
             liv->setItemTextBackground( cg.brush( QColorGroup::Highlight ) );
             mycg.setColor( QColorGroup::Text, cg.color( QColorGroup::HighlightedText ) );
         }
         QIconViewItem::paintItem(p,mycg);
         if ( liv->currentItem() == this )
             liv->setItemTextBackground( oldBrush );
     }
 
     virtual QPixmap* pixmap () const
     {
         const LauncherIconView* liv = (LauncherIconView*)iconView();
         if ( (const LauncherItem *)liv->busyItem() == this )
             return liv->busyPixmap();
         return QIconViewItem::pixmap();
     }
 
 protected:
     AppLnk* app;
 };
 
 
 LauncherItem::LauncherItem( QIconView *parent, AppLnk *applnk, bool bigIcon )
     : QIconViewItem( parent, applnk->name(),
            bigIcon ? applnk->bigPixmap() :applnk->pixmap() ),
         app(applnk) // Takes ownership
 {
 }
 
 int LauncherItem::compare ( QIconViewItem * i ) const
 {
     LauncherIconView* view = (LauncherIconView*)iconView();
     return view->compare(app,((LauncherItem *)i)->appLnk());
 }
 
 QStringList LauncherIconView::mimeTypes() const
 {
     QStringList r;
     QDictIterator<void> it(mimes);
     while (it.current()) {
         r.append(it.currentKey());
         ++it;
     }
     r.sort();
     return r;
 }
 
 void LauncherIconView::addItem(AppLnk* app, bool resort)
 {
     addCatsAndMimes(app);
 
     if ( (tf.isEmpty() || tf.match(app->type()) >= 0)
          && (cf == 0 || app->categories().contains(cf)
              || cf == -1 && app->categories().count() == 0 ) )
         (void) new LauncherItem( this, app, bigIcns );
     else
         hidden.append(app);
     if ( resort )
         sort();
 }
 
 void LauncherIconView::updateCategoriesAndMimeTypes()
 {
     mimes.clear();
     cats.clear();
     LauncherItem* item = (LauncherItem*)firstItem();
     while (item) {
         addCatsAndMimes(item->appLnk());
         item = (LauncherItem*)item->nextItem();
     }
     QListIterator<AppLnk> it(hidden);
     AppLnk* l;
     while ((l=it.current())) {
         addCatsAndMimes(l);
         ++it;
     }
 }
 
 void LauncherIconView::hideOrShowItems(bool resort)
 {
     hidden.setAutoDelete(FALSE);
     QList<AppLnk> links=hidden;
     hidden.clear();
     hidden.setAutoDelete(TRUE);
     LauncherItem* item = (LauncherItem*)firstItem();
     while (item) {
         links.append(item->takeAppLnk());
         item = (LauncherItem*)item->nextItem();
     }
     viewport()->setUpdatesEnabled( FALSE );
     clear();
     QListIterator<AppLnk> it(links);
     AppLnk* l;
     while ((l=it.current())) {
         addItem(l,FALSE);
         ++it;
     }
     viewport()->setUpdatesEnabled( TRUE );
     if ( resort && !autoArrange() )
         sort();
 }
 
 bool LauncherIconView::removeLink(const QString& linkfile)
 {
     LauncherItem* item = (LauncherItem*)firstItem();
     AppLnk* l;
     bool did = FALSE;
     DocLnk dl(linkfile);
     while (item) {
         l = item->appLnk();
         if (  l->linkFileKnown() && l->linkFile() == linkfile
                 || l->fileKnown() && (
                     l->file() == linkfile
                     || dl.isValid() && dl.file() == l->file() ) ) {
             delete item;
             did = TRUE;
         }
         item = (LauncherItem*)item->nextItem();
     }
     QListIterator<AppLnk> it(hidden);
     while ((l=it.current())) {
         ++it;
         if ( l->linkFileKnown() && l->linkFile() == linkfile
                 || l->file() == linkfile
                 || dl.isValid() && dl.file() == l->file() ) {
             hidden.removeRef(l);
            did = TRUE;
         }
     }
     return did;
 }
 
 static QString docLinkInfo(const Categories& cats, DocLnk* doc)
 {
     QString contents;
 
     QFileInfo fi( doc->file() );
     if ( !fi.exists() )
         return contents;
 
     if ( doc->linkFileKnown() ) {
         QString lfn = doc->linkFile();
         QFile f( lfn );
         if ( f.open( IO_ReadOnly ) ) {
             QTextStream ts( &f );
             ts.setEncoding( QTextStream::UnicodeUTF8 );
             contents += ts.read();
             f.close();
             goto calcsize;
         }
     }
 
     contents += "[Desktop Entry]\n";
     contents += "Categories = " // No tr
         + cats.labels("Document View", doc->categories()).join(";") + "\n"; // No tr
     contents += "File = "+doc->file()+"\n"; // No tr
     contents += "Name = "+doc->name()+"\n"; // No tr
     contents += "Type = "+doc->type()+"\n"; // No tr
 
 calcsize:
     contents += QString("Size = %1\n").arg( fi.size() ); // No tr
     return contents;
 }
 
 QString LauncherIconView::getAllDocLinkInfo() const
 {
     QString contents;
     LauncherItem* item = (LauncherItem*)firstItem();
     Categories cats;
     while (item) {
         DocLnk* doc = (DocLnk*)item->appLnk();
         contents += docLinkInfo(cats,doc);
         item = (LauncherItem*)item->nextItem();
     }
     QListIterator<AppLnk> it(hidden);
     DocLnk* doc;
     while ((doc=(DocLnk*)it.current())) {
         contents += docLinkInfo(cats,doc);
         ++it;
     }
     return contents;
 }
 
 //===========================================================================
 
 LauncherView::LauncherView( QWidget* parent, const char* name, WFlags fl )
     : QVBox( parent, name, fl )
 {
     icons = new LauncherIconView( this );
     setFocusProxy(icons);
     QPEApplication::setStylusOperation( icons->viewport(), QPEApplication::RightOnHold );
 
     icons->setItemsMovable( FALSE );
     icons->setAutoArrange( TRUE );
     icons->setSorting( TRUE );
     icons->setFrameStyle( QFrame::NoFrame );
     icons->setMargin( 0 );
     icons->setSelectionMode( QIconView::NoSelection );
     icons->setBackgroundMode( PaletteBase );
     icons->setResizeMode( QIconView::Fixed );
     vmode = (ViewMode)-1;
     setViewMode( Icon );
 
     connect( icons, SIGNAL(mouseButtonClicked(int, QIconViewItem *, const QPoint&)),
                    SLOT(itemClicked(int, QIconViewItem *)) );
     connect( icons, SIGNAL(selectionChanged()),
                    SLOT(selectionChanged()) );
     connect( icons, SIGNAL(returnPressed(QIconViewItem *)),
                    SLOT(returnPressed(QIconViewItem *)) );
     connect( icons, SIGNAL(mouseButtonPressed(int, QIconViewItem *, const QPoint&)),
                    SLOT(itemPressed(int, QIconViewItem *)) );
 
     tools = 0;
     setBackgroundType( Ruled, QString::null );
 }
 
 LauncherView::~LauncherView()
 {
 }
 
 void LauncherView::setToolsEnabled(bool y)
 {
     if ( !y != !tools ) {
         if ( y ) {
             tools = new QHBox(this);
 
             // Type filter
             typemb = new QComboBox(tools);
 
             // Category filter
             catmb = new CategorySelect(tools);
 
             updateTools();
             tools->show();
         } else {
             delete tools;
             tools = 0;
         }
     }
 }
 
 void LauncherView::updateTools()
 {
     disconnect( typemb, SIGNAL(activated(int)),
                 this, SLOT(showType(int)) );
     disconnect( catmb, SIGNAL(signalSelected(int)),
                 this, SLOT(showCategory(int)) );
 
     icons->updateCategoriesAndMimeTypes();
 
     QString prev;
 
     // Type filter
     QStringList types;
     typelist = icons->mimeTypes();
     for (QStringList::ConstIterator it = typelist.begin(); it!=typelist.end(); ++it) {
         QString t = *it;
         if ( t.left(12) == "application/" ) {
             MimeType mt(t);
             const AppLnk* app = mt.application();
             if ( app )
                 t = app->name();
             else
                 t = t.mid(12);
         } else {
             t[0] = t[0].upper();
         }
         types += tr("%1 files").arg(t);
     }
     types << tr("All types of file");
     prev = typemb->currentText();
     typemb->clear();
     typemb->insertStringList(types);
     for (int i=0; i<typemb->count(); i++) {
         if ( typemb->text(i) == prev ) {
             typemb->setCurrentItem(i);
             break;
         }
     }
     if ( prev.isNull() )
         typemb->setCurrentItem(typemb->count()-1);
 
     Categories cats( 0 );
     cats.load( categoryFileName() );
     QArray<int> vl( 0 );
     catmb->setCategories( vl, "Document View", // No tr
         tr("Document View") );
     catmb->setRemoveCategoryEdit( TRUE );
     catmb->setAllCategories( TRUE );
 
     connect(typemb, SIGNAL(activated(int)), this, SLOT(showType(int)));
     connect(catmb, SIGNAL(signalSelected(int)), this, SLOT(showCategory(int)));
 }
 
 void LauncherView::sortBy(int s)
 {
     icons->setSortMethod((LauncherIconView::SortMethod)s);
 }
 
 void LauncherView::showType(int t)
 {
     if ( t >= (int)typelist.count() ) {
         icons->setTypeFilter("",TRUE);
     } else {
         QString ty = typelist[t];
         if ( !ty.contains('/') )
             ty += "/*";
         icons->setTypeFilter(ty,TRUE);
     }
 }
 
 void LauncherView::showCategory( int c )
 {
     icons->setCategoryFilter( c, TRUE );
 }
 
 void LauncherView::setViewMode( ViewMode m )
 {
     if ( vmode != m ) {
         bool bigIcons = m == Icon;
         icons->viewport()->setUpdatesEnabled( FALSE );
         icons->setBigIcons( bigIcons );
         switch ( m ) {
             case List:
                 icons->setItemTextPos( QIconView::Right );
                 break;
             case Icon:
                 icons->setItemTextPos( QIconView::Bottom );
                 break;
         }
         icons->hideOrShowItems( FALSE );
         icons->viewport()->setUpdatesEnabled( TRUE );
         vmode = m;
     }
 }
 
 void LauncherView::setBackgroundType( BackgroundType t, const QString &val )
 {
     if ( !bgCache )
         bgCache = new QMap<QString,BgPixmap*>;
     if ( bgCache->contains( bgName ) )
         (*bgCache)[bgName]->ref--;
 
     switch ( t ) {
         case Ruled: {
             bgName = QString("Ruled_%1").arg(colorGroup().background().name()); // No tr
             QPixmap bg;
             if ( bgCache->contains( bgName ) ) {
                 (*bgCache)[bgName]->ref++;
                 bg = (*bgCache)[bgName]->pm;
             } else {
                 bg.resize( width(), 9 );
                 QPainter painter( &bg );
                 for ( int i = 0; i < 3; i++ ) {
                     painter.setPen( white );
                     painter.drawLine( 0, i*3, width()-1, i*3 );
                     painter.drawLine( 0, i*3+1, width()-1, i*3+1 );
                     painter.setPen( colorGroup().background().light(105) );
                     painter.drawLine( 0, i*3+2, width()-1, i*3+2 );
                 }
                 painter.end();
                 bgCache->insert( bgName, new BgPixmap(bg) );
             }
             icons->setBackgroundPixmap( bg );
             break;
         }
 
         case SolidColor:
             icons->setBackgroundPixmap( QPixmap() );
             if ( val.isEmpty() ) {
                 icons->setBackgroundColor( colorGroup().base() );
             } else {
                 icons->setBackgroundColor( val );
             }
             bgName = "";
             break;
 
         case Image:
             bgName = val;
             if ( bgCache->contains( bgName ) ) {
                 (*bgCache)[bgName]->ref++;
                 icons->setBackgroundPixmap( (*bgCache)[bgName]->pm );
             } else {
                 qDebug( "Loading image: %s", val.latin1() );
                 QPixmap bg( Resource::loadPixmap( val ) );
                 if ( bg.isNull() ) {
                     QImageIO imgio;
                     imgio.setFileName( bgName );
                     QSize ds = qApp->desktop()->size();
                     QString param( "Scale( %1, %2, ScaleMin )" ); // No tr
                     imgio.setParameters( param.arg(ds.width()).arg(ds.height()).latin1() );
                     imgio.read();
                     bg = imgio.image();
                 }
                 bgCache->insert( bgName, new BgPixmap(bg) );
                 icons->setBackgroundPixmap( bg );
             }
             break;
     }
 
     // remove unreferenced backgrounds.
     QMap<QString,BgPixmap*>::Iterator it = bgCache->begin();
     while ( it != bgCache->end() ) {
         QMap<QString,BgPixmap*>::Iterator curr = it;
         ++it;
         if ( (*curr)->ref == 0 ) {
             delete (*curr);
             bgCache->remove( curr );
         }
     }
 
     bgType = t;
     icons->viewport()->update();
 }
 
 void LauncherView::setTextColor( const QColor &tc )
 {
     textCol = tc;
     QColorGroup cg = icons->colorGroup();
     cg.setColor( QColorGroup::Text, tc );
     icons->setPalette( QPalette(cg,cg,cg) );
     icons->viewport()->update();
 }
 
 void LauncherView::setViewFont( const QFont &f )
 {
     icons->setFont( f );
 }
 
 void LauncherView::resizeEvent(QResizeEvent *e)
 {
     QVBox::resizeEvent( e );
     if ( e->size().width() != e->oldSize().width() )
         sort();
 }
 
 void LauncherView::populate( AppLnkSet *folder, const QString& typefilter )
 {
     icons->clear();
     internalPopulate( folder, typefilter );
 }
 
 QString LauncherView::getAllDocLinkInfo() const
 {
     return icons->getAllDocLinkInfo();
 }
 
 void LauncherView::selectionChanged()
 {
     QIconViewItem* item = icons->currentItem();
     if ( item && item->isSelected() ) {
         AppLnk *appLnk = ((LauncherItem *)item)->appLnk();
         if ( icons->inKeyEvent() ) // not for mouse press
             emit clicked( appLnk );
         item->setSelected(FALSE);
     }
 }
 
 void LauncherView::returnPressed( QIconViewItem *item )
 {
     if ( item ) {
         AppLnk *appLnk = ((LauncherItem *)item)->appLnk();
         emit clicked( appLnk );
     }
 }
 
 void LauncherView::itemClicked( int btn, QIconViewItem *item )
 {
     if ( item ) {
         AppLnk *appLnk = ((LauncherItem *)item)->appLnk();
         if ( btn == LeftButton ) {
             // Make sure it's the item we execute that gets highlighted
             icons->setCurrentItem( item );
             emit clicked( appLnk );
         }
         item->setSelected(FALSE);
     }
 }
 
 void LauncherView::itemPressed( int btn, QIconViewItem *item )
 {
     if ( item ) {
         AppLnk *appLnk = ((LauncherItem *)item)->appLnk();
         if ( btn == RightButton )
             emit rightPressed( appLnk );
 /*
         else if ( btn == LeftButton )
             emit clicked( appLnk );
 */
         item->setSelected(FALSE);
     }
 }
 
 void LauncherView::internalPopulate( AppLnkSet *folder, const QString& typefilter )
 {
     QListIterator<AppLnk> it( folder->children() );
     icons->setTypeFilter(typefilter,FALSE);
 
     while ( it.current() ) {
         // show only the icons for existing files
         if (QFile(it.current()->file()).exists() || ( it.current()->file().left(4) == "http" )) {
             icons->addItem(*it,FALSE);
         }
         else {
             //maybe insert some .desktop file deletion code later
             //maybe dir specific
         }
         ++it;
     }
 
     icons->sort();
 }
 
 bool LauncherView::removeLink(const QString& linkfile)
 {
     return icons->removeLink(linkfile);
 }
 
 void LauncherView::sort()
 {
     icons->sort();
 }
 
 void LauncherView::addItem(AppLnk* app, bool resort)
 {
     icons->addItem(app,resort);
 }
 
 void LauncherView::setFileSystems(const QList<FileSystem> &)
 {
     // ### does nothing now...
 }
 
 void LauncherView::paletteChange( const QPalette &p )
 {
     icons->unsetPalette();
     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) );
 }