Another performance tweak for busyindicator and alpha-blended bg pixmaps

1 files changed, 18 insertions, 4 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
@@ -1,407 +1,421 @@
 /**********************************************************************
 ** 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[::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 ) {
-        bgPixmap = 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:
     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;
 };
 
 
 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);