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View File mach_blass.diff of Package kdebase3 (Project openSUSE:Factory)

Index: ksmserver/shutdowndlg.cpp
===================================================================
--- ksmserver/shutdowndlg.cpp.orig
+++ ksmserver/shutdowndlg.cpp
@@ -35,6 +35,7 @@ Copyright (C) 2000 Matthias Ettrich <ett
 #include <kuser.h>
 #include <kpixmap.h>
 #include <kimageeffect.h>
+#include <kpixmapeffect.h>
 #include <kdialog.h>
 #include <kseparator.h>
 
@@ -48,6 +49,9 @@ Copyright (C) 2000 Matthias Ettrich <ett
 
 #include "shutdowndlg.moc"
 
+static const int max_faded = 2300;
+static const int slice = 20;
+
 KSMShutdownFeedback * KSMShutdownFeedback::s_pSelf = 0L;
 
 KSMShutdownFeedback::KSMShutdownFeedback()
@@ -56,12 +60,22 @@ KSMShutdownFeedback::KSMShutdownFeedback
 {
     setBackgroundMode( QWidget::NoBackground );
     setGeometry( QApplication::desktop()->geometry() );
-    QTimer::singleShot( 10, this, SLOT( slotPaintEffect() ) );
-    m_root.resize( width(), height() );
-}
+    if( QPixmap::defaultDepth() > 8 )
+    {
+        grabbed.create( size(), 32 );
+        QTimer::singleShot( 0, this, SLOT( slotGrab() ) );
+    }
+    else
+    {
+        QTimer::singleShot( 10, this, SLOT( slotPaintEffectOld() ) );
+        m_root.resize( width(), height() );
+    }
 
 
-void KSMShutdownFeedback::slotPaintEffect()
+}
+
+// the upstream KDE effect
+void KSMShutdownFeedback::slotPaintEffectOld()
 {
     if ( m_currentY >= height() ) {
         if ( backgroundMode() == QWidget::NoBackground ) {
@@ -80,7 +94,76 @@ void KSMShutdownFeedback::slotPaintEffec
     bitBlt( this, 0, m_currentY, &pixmap );
     bitBlt( &m_root, 0, m_currentY, &pixmap );
     m_currentY += 10;
-    QTimer::singleShot( 1, this, SLOT( slotPaintEffect() ) );
+    QTimer::singleShot( 1, this, SLOT( slotPaintEffectOld() ) );
+}
+
+// the SUSE effect
+void KSMShutdownFeedback::slotGrab()
+{
+    // we start the passed early
+    if ( m_currentY * 4 >= height() * 3 && passed.isNull())
+        passed.start();
+
+    if ( m_currentY >= height() ) {
+        slotPaintEffectNew();
+        return;
+    }
+
+    QImage img;
+    img = QPixmap::grabWindow( qt_xrootwin(), 0,
+                               m_currentY, width(),
+                               slice );
+    bitBlt(&grabbed, 0, m_currentY, &img);
+    m_currentY += slice;
+    QTimer::singleShot(0, this, SLOT(slotGrab()));
+}
+
+void KSMShutdownFeedback::slotPaintEffectNew()
+{
+    const unsigned int shift_scale = 10;
+    const unsigned int scale = 1 << shift_scale;
+
+    //kdDebug() << "passed before paint " << passed.elapsed() << endl;
+    unsigned int current_fade = QMIN(scale, passed.elapsed() * scale / max_faded);
+    QImage copy;
+    copy.create( grabbed.size(), grabbed.depth() );
+    unsigned int pixels = grabbed.width()*grabbed.height();
+    QRgb *orig = ( QRgb* )grabbed.bits();
+    QRgb *dest = ( QRgb* )copy.bits();
+    QColor clr;
+
+    int r, g, b, tg;
+
+    for ( unsigned int i = 0; i < pixels; ++i )
+    {
+        r = qRed( orig[i] );
+        g = qGreen( orig[i] );
+        b = qBlue( orig[i] );
+
+        // qGray formla
+        tg = (r*11 + g*16 + b*5)/32;
+        // make it a bit darker than gray
+        tg = tg - tg / 5;
+
+        r = ( ( r << shift_scale ) + current_fade * ( tg - r ) ) >> shift_scale;
+        g = ( ( g << shift_scale ) + current_fade * ( tg - g ) ) >> shift_scale;
+        b = ( ( b << shift_scale ) + current_fade * ( tg - b ) ) >> shift_scale;
+
+        dest[i] = qRgb(r, g, b);
+    }
+    //kdDebug() << "passed before bitBlt " << passed.elapsed() << endl;
+    bitBlt( this, 0, 0, &copy);
+    //kdDebug() << "passed after bitBlt " << passed.elapsed() << endl;
+
+    if ( current_fade >= scale ) {
+        if ( backgroundMode() == QWidget::NoBackground ) {
+            setBackgroundMode( QWidget::NoBackground );
+            setBackgroundPixmap( copy );
+        }
+        return;
+    }
+
+    QTimer::singleShot( 0, this, SLOT( slotPaintEffectNew() ) );
 }
 
 //////
Index: ksmserver/shutdowndlg.h
===================================================================
--- ksmserver/shutdowndlg.h.orig
+++ ksmserver/shutdowndlg.h
@@ -9,7 +9,9 @@ Copyright (C) 2000 Matthias Ettrich <ett
 
 #include <qpixmap.h>
 #include <qdialog.h>
+#include <qdatetime.h>
 #include <kpushbutton.h>
+#include <qimage.h>
 class QPushButton;
 class QVButtonGroup;
 class QPopupMenu;
@@ -31,13 +33,17 @@ protected:
     ~KSMShutdownFeedback() {}
 
 private slots:
-    void slotPaintEffect();
+    void slotPaintEffectOld();
+    void slotPaintEffectNew();
+    void slotGrab();
 
 private:
     static KSMShutdownFeedback * s_pSelf;
     KSMShutdownFeedback();
     int m_currentY;
     QPixmap m_root;
+    QTime passed;
+    QImage grabbed;
 };