fix shadow fix

(cherry picked from commit 55986b32de9e5f5f66ac0c3448b26863cfc2dee0)

client.h

@@ -419,7 +419,6 @@ public:
         WindowRelative      // Relative to the top left corner of the window
     };
     void layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom, CoordinateMode mode) const;
-    virtual void addRepaintFull();
 
     TabBox::TabBoxClientImpl* tabBoxClient() const {
         return m_tabBoxClient;

composite.cpp

@@ -750,10 +750,7 @@ void Toplevel::addRepaint(int x, int y, int w, int h)
 
 void Toplevel::addRepaintFull()
 {
-    repaints_region = rect();
-    if (hasShadow()) {
-        repaints_region = repaints_region.united(shadow()->shadowRegion());
-    }
+    repaints_region = decorationRect();
     workspace()->checkCompositeTimer();
 }
 
@@ -842,11 +839,6 @@ bool Client::shouldUnredirect() const
     return false;
 }
 
-void Client::addRepaintFull()
-{
-    repaints_region = decorationRect();
-    workspace()->checkCompositeTimer();
-}
 
 //****************************************
 // Unmanaged
@@ -885,10 +877,5 @@ bool Deleted::shouldUnredirect() const
     return false;
 }
 
-void Deleted::addRepaintFull()
-{
-    repaints_region = decorationRect();
-    workspace()->checkCompositeTimer();
-}
 
 } // namespace

deleted.cpp

@@ -22,6 +22,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "workspace.h"
 #include "client.h"
+#include "shadow.h"
 
 namespace KWin
 {
@@ -139,7 +140,11 @@ void Deleted::layoutDecorationRects(QRect& left, QRect& top, QRect& right, QRect
 
 QRect Deleted::decorationRect() const
 {
-    return rect().adjusted(-padding_left, -padding_top, padding_top, padding_bottom);
+    QRect r(rect());
+    r.adjust(-padding_left, -padding_top, padding_top, padding_bottom);
+    if (hasShadow())
+        r |= shadow()->shadowRegion().boundingRect();
+    return r;
 }
 
 QRect Deleted::transparentRect() const

deleted.h

@@ -57,7 +57,6 @@ public:
         return no_border;
     }
     void layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom) const;
-    virtual void addRepaintFull(); // in composite.cpp
     QRect decorationRect() const;
 protected:
     virtual void debug(QDebug& stream) const;

toplevel.cpp

@@ -98,6 +98,14 @@ QDebug& operator<<(QDebug& stream, const ConstToplevelList& list)
     return stream;
 }
 
+QRect Toplevel::decorationRect() const
+{
+    QRect r(rect());
+    if (hasShadow())
+        r |= shadow()->shadowRegion().boundingRect();
+    return r;
+}
+
 void Toplevel::detectShape(Window id)
 {
     is_shape = Extensions::hasShape(id);

toplevel.h

@@ -285,11 +285,6 @@ inline QRect Toplevel::rect() const
     return QRect(0, 0, width(), height());
 }
 
-inline QRect Toplevel::decorationRect() const
-{
-    return rect();
-}
-
 inline QRegion Toplevel::decorationPendingRegion() const
 {
     return QRegion();