Use new shadow texture by pinotree. It uses gaussian blur instead of linear falloff

and thus looks better.
Also change default shadow settings to look better with the new texture.

svn path=/trunk/KDE/kdebase/workspace/; revision=732038

effects/shadow.cpp

@@ -24,11 +24,11 @@ KWIN_EFFECT( shadow, ShadowEffect )
 ShadowEffect::ShadowEffect()
     {
     KConfigGroup conf = effects->effectConfig("Shadow");
-    shadowXOffset = conf.readEntry( "XOffset", 5 );
-    shadowYOffset = conf.readEntry( "YOffset", 5 );
-    shadowOpacity = conf.readEntry( "Opacity", 0.2 );
+    shadowXOffset = conf.readEntry( "XOffset", 0 );
+    shadowYOffset = conf.readEntry( "YOffset", 3 );
+    shadowOpacity = conf.readEntry( "Opacity", 0.25 );
     shadowFuzzyness = conf.readEntry( "Fuzzyness", 10 );
-    shadowSize = conf.readEntry( "Size", 4 );
+    shadowSize = conf.readEntry( "Size", 5 );
     intensifyActiveShadow = conf.readEntry( "IntensifyActiveShadow", true );
 
     QString shadowtexture =  KGlobal::dirs()->findResource("data", "kwin/shadow-texture.png");
@@ -80,12 +80,12 @@ bool ShadowEffect::useShadow( EffectWindow* w ) const
     }
 
 void ShadowEffect::addQuadVertices(QVector<float>& verts, float x1, float y1, float x2, float y2) const
-{
+    {
     verts << x1 << y1;
     verts << x1 << y2;
     verts << x2 << y2;
     verts << x2 << y1;
-}
+    }
 
 void ShadowEffect::drawShadow( EffectWindow* window, int mask, QRegion region, WindowPaintData& data )
     {

effects/shadow_config.cpp

@@ -87,11 +87,11 @@ void ShadowEffectConfig::load()
     KCModule::load();
 
     KConfigGroup conf = EffectsHandler::effectConfig("Shadow");
-    mShadowXOffset->setValue( conf.readEntry( "XOffset", 5 ) );
-    mShadowYOffset->setValue( conf.readEntry( "YOffset", 5 ) );
-    mShadowOpacity->setValue( (int)( conf.readEntry( "Opacity", 0.2 ) * 100 ) );
+    mShadowXOffset->setValue( conf.readEntry( "XOffset", 0 ) );
+    mShadowYOffset->setValue( conf.readEntry( "YOffset", 3 ) );
+    mShadowOpacity->setValue( (int)( conf.readEntry( "Opacity", 0.25 ) * 100 ) );
     mShadowFuzzyness->setValue( conf.readEntry( "Fuzzyness", 10 ) );
-    mShadowSize->setValue( conf.readEntry( "Size", 4 ) );
+    mShadowSize->setValue( conf.readEntry( "Size", 5 ) );
     mIntensifyActiveShadow->setChecked( conf.readEntry( "IntensifyActiveShadow", true ) );
 
     emit changed(false);
@@ -118,11 +118,11 @@ void ShadowEffectConfig::save()
 void ShadowEffectConfig::defaults()
     {
     kDebug() ;
-    mShadowXOffset->setValue( 5 );
-    mShadowYOffset->setValue( 5 );
-    mShadowOpacity->setValue( 20 );
+    mShadowXOffset->setValue( 0 );
+    mShadowYOffset->setValue( 3 );
+    mShadowOpacity->setValue( 25 );
     mShadowFuzzyness->setValue( 10 );
-    mShadowSize->setValue( 4 );
+    mShadowSize->setValue( 5 );
     mIntensifyActiveShadow->setChecked( true );
     emit changed(true);
     }