From 537557f6d33822a8e015dee86bf0cd9f842e7c5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lubo=C5=A1=20Lu=C5=88=C3=A1k?= <l.lunak@kde.org>
Date: Thu, 18 Sep 2008 15:28:13 +0000
Subject: [PATCH] Disable shadow with effects that transform windows, such as
 wobbly, since shadow currently can't handle that. (bug 161330)

svn path=/branches/KDE/4.1/kdebase/workspace/; revision=862313
---
 effects/shadow.cpp  | 4 ++--
 lib/kwineffects.cpp | 8 ++++++++
 lib/kwineffects.h   | 1 +
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/effects/shadow.cpp b/effects/shadow.cpp
index ee48f9f924..f75515fc8f 100644
--- a/effects/shadow.cpp
+++ b/effects/shadow.cpp
@@ -174,7 +174,7 @@ void ShadowEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data
 
 void ShadowEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
     {
-    if( useShadow( w ))
+    if( useShadow( w ) && !data.quads.isTransformed())
         {
         data.paint |= shadowRectangle( data.paint.boundingRect() );
         }
@@ -192,7 +192,7 @@ void ShadowEffect::drawWindow( EffectWindow* w, int mask, QRegion region, Window
         //  first we need to draw all queued shadows.
         drawQueuedShadows( w );
         }
-    if( useShadow( w ))
+    if( useShadow( w ) && !data.quads.isTransformed())
         {
         if( !optimize )
             {
diff --git a/lib/kwineffects.cpp b/lib/kwineffects.cpp
index 1073670faa..2063c834b4 100644
--- a/lib/kwineffects.cpp
+++ b/lib/kwineffects.cpp
@@ -741,6 +741,14 @@ bool WindowQuadList::smoothNeeded() const
     return false;
     }
 
+bool WindowQuadList::isTransformed() const
+    {
+    foreach( WindowQuad q, *this )
+        if( q.isTransformed())
+            return true;
+    return false;
+    }
+
 /***************************************************************
  PaintClipper
 ***************************************************************/
diff --git a/lib/kwineffects.h b/lib/kwineffects.h
index 32397b7c23..e901a11f02 100644
--- a/lib/kwineffects.h
+++ b/lib/kwineffects.h
@@ -831,6 +831,7 @@ class KWIN_EXPORT WindowQuadList
         WindowQuadList filterOut( WindowQuadType type ) const;
         bool smoothNeeded() const;
         void makeArrays( float** vertices, float** texcoords ) const;
+        bool isTransformed() const;
     };
 
 class KWIN_EXPORT WindowPrePaintData