From 9b0c6ddef32e86c740654de04ba5ab6286828287 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Mon, 24 Jun 2013 08:54:41 +0200
Subject: [PATCH] Drop pure virtual Scene::windowOpacityChanged slot

It's neither implemented in the XRender nor in the OpenGL Scene.
---
 scene.h           |  2 --
 scene_opengl.cpp  | 14 --------------
 scene_opengl.h    |  1 -
 scene_xrender.cpp |  5 -----
 scene_xrender.h   |  1 -
 5 files changed, 23 deletions(-)

diff --git a/scene.h b/scene.h
index 1bbf93a834..ca4afb734f 100644
--- a/scene.h
+++ b/scene.h
@@ -109,8 +109,6 @@ public:
 public Q_SLOTS:
     // a window has been destroyed
     virtual void windowDeleted(KWin::Deleted*) = 0;
-    // opacity of a window changed
-    virtual void windowOpacityChanged(KWin::Toplevel* c) = 0;
     // shape/size of a window changed
     virtual void windowGeometryShapeChanged(KWin::Toplevel* c) = 0;
     // a window has been closed
diff --git a/scene_opengl.cpp b/scene_opengl.cpp
index 31a4abe738..289e1987d6 100644
--- a/scene_opengl.cpp
+++ b/scene_opengl.cpp
@@ -493,7 +493,6 @@ void SceneOpenGL::windowAdded(Toplevel* c)
     Window *w = createWindow(c);
     windows[ c ] = w;
     w->setScene(this);
-    connect(c, SIGNAL(opacityChanged(KWin::Toplevel*,qreal)), SLOT(windowOpacityChanged(KWin::Toplevel*)));
     connect(c, SIGNAL(geometryShapeChanged(KWin::Toplevel*,QRect)), SLOT(windowGeometryShapeChanged(KWin::Toplevel*)));
     connect(c, SIGNAL(windowClosed(KWin::Toplevel*,KWin::Deleted*)), SLOT(windowClosed(KWin::Toplevel*,KWin::Deleted*)));
     c->effectWindow()->setSceneWindow(windows[ c ]);
@@ -533,19 +532,6 @@ void SceneOpenGL::windowGeometryShapeChanged(KWin::Toplevel* c)
     w->discardShape();
 }
 
-void SceneOpenGL::windowOpacityChanged(KWin::Toplevel* t)
-{
-    Q_UNUSED(t)
-#if 0 // not really needed, windows are painted on every repaint
-    // and opacity is used when applying texture, not when
-    // creating it
-    if (!windows.contains(c))    // this is ok, texture is created
-        return;                 // on demand
-    Window* w = windows[ c ];
-    w->discardTexture();
-#endif
-}
-
 SceneOpenGL::Texture *SceneOpenGL::createTexture()
 {
     return new Texture(m_backend);
diff --git a/scene_opengl.h b/scene_opengl.h
index bfd94b9a6d..d43ee632ae 100644
--- a/scene_opengl.h
+++ b/scene_opengl.h
@@ -94,7 +94,6 @@ Q_SIGNALS:
     void resetCompositing();
 
 public Q_SLOTS:
-    virtual void windowOpacityChanged(KWin::Toplevel* c);
     virtual void windowGeometryShapeChanged(KWin::Toplevel* c);
     virtual void windowClosed(KWin::Toplevel* c, KWin::Deleted* deleted);
 protected:
diff --git a/scene_xrender.cpp b/scene_xrender.cpp
index 2a699021c4..efb924b422 100644
--- a/scene_xrender.cpp
+++ b/scene_xrender.cpp
@@ -253,11 +253,6 @@ void SceneXrender::windowGeometryShapeChanged(KWin::Toplevel* c)
     w->discardShape();
 }
 
-void SceneXrender::windowOpacityChanged(KWin::Toplevel* c)
-{
-    Q_UNUSED(c)
-}
-
 void SceneXrender::windowClosed(KWin::Toplevel* c, KWin::Deleted* deleted)
 {
     assert(windows.contains(c));
diff --git a/scene_xrender.h b/scene_xrender.h
index 0edf890011..5c8e917520 100644
--- a/scene_xrender.h
+++ b/scene_xrender.h
@@ -55,7 +55,6 @@ protected:
     virtual void paintGenericScreen(int mask, ScreenPaintData data);
     virtual void paintDesktop(int desktop, int mask, const QRegion &region, ScreenPaintData &data);
 public Q_SLOTS:
-    virtual void windowOpacityChanged(KWin::Toplevel* c);
     virtual void windowGeometryShapeChanged(KWin::Toplevel* c);
     virtual void windowClosed(KWin::Toplevel* c, KWin::Deleted* deleted);
 private: