From fc5e74f4e2b951057ddd7b7cd773bf7e45e4f864 Mon Sep 17 00:00:00 2001
From: Philipp Knechtges <philipp-dev@knechtges.com>
Date: Fri, 15 Jul 2011 10:27:11 +0200
Subject: [PATCH] kwin: make decoration repaints window-specific

This gives the new Scene::paintSimpleScreen more room for optimizations.
---
 client.cpp    | 5 +++--
 composite.cpp | 8 ++++++++
 toplevel.h    | 1 +
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/client.cpp b/client.cpp
index 5ed36a9d5d..f07369135d 100644
--- a/client.cpp
+++ b/client.cpp
@@ -500,8 +500,9 @@ void Client::repaintDecorationPending()
         // The scene will update the decoration pixmaps in the next painting pass
         // if it has not been already repainted before
         const QRegion r = paintRedirector->scheduledRepaintRegion();
-        if (!r.isEmpty())
-            Workspace::self()->addRepaint(r.translated(x() - padding_left, y() - padding_top));
+        if (!r.isEmpty()) {
+            addRepaint(r.translated(-padding_left,-padding_top));
+        }
     }
 }
 
diff --git a/composite.cpp b/composite.cpp
index 43078fb7d6..fe76957196 100644
--- a/composite.cpp
+++ b/composite.cpp
@@ -748,6 +748,14 @@ void Toplevel::addRepaint(int x, int y, int w, int h)
     workspace()->checkCompositeTimer();
 }
 
+void Toplevel::addRepaint(const QRegion& r)
+{
+    if (!compositing())
+        return;
+    repaints_region += r;
+    workspace()->checkCompositeTimer();
+}
+
 void Toplevel::addRepaintFull()
 {
     repaints_region = decorationRect();
diff --git a/toplevel.h b/toplevel.h
index 9ad7dbaa78..fb6712b272 100644
--- a/toplevel.h
+++ b/toplevel.h
@@ -124,6 +124,7 @@ public:
     bool unredirected() const;
     void suspendUnredirect(bool suspend);
     void addRepaint(const QRect& r);
+    void addRepaint(const QRegion& r);
     void addRepaint(int x, int y, int w, int h);
     virtual void addRepaintFull();
     // these call workspace->addRepaint(), but first transform the damage if needed