split decorationRect / visibleRect usage

REVIEW: 104215

cherry-picked from 0f3380f3b10e57416f81a1288dc10b8dfe11d87e
Conflicts:

	kwin/geometry.cpp
	kwin/scene.cpp

client.cpp

@@ -2425,12 +2425,7 @@ void Client::setSessionInteract(bool needed)
 QRect Client::decorationRect() const
 {
     if (decoration && decoration->widget()) {
-        QRect r = decoration->widget()->rect().translated(-padding_left, -padding_top);
-        if (hasShadow())
-            r |= shadow()->shadowRegion().boundingRect();
-        return r;
-    } else if (hasShadow()) {
-        return shadow()->shadowRegion().boundingRect();
+        return decoration->widget()->rect().translated(-padding_left, -padding_top);
     } else {
         return QRect(0, 0, width(), height());
     }

composite.cpp

@@ -782,7 +782,7 @@ void Toplevel::addLayerRepaint(const QRegion& r)
 
 void Toplevel::addRepaintFull()
 {
-    repaints_region = decorationRect();
+    repaints_region = visibleRect().translated(-pos());
     workspace()->checkCompositeTimer();
 }
 

deleted.cpp

@@ -149,11 +149,7 @@ void Deleted::layoutDecorationRects(QRect& left, QRect& top, QRect& right, QRect
 
 QRect Deleted::decorationRect() const
 {
-    QRect r(rect());
-    r.adjust(-padding_left, -padding_top, padding_top, padding_bottom);
-    if (hasShadow())
-        r |= shadow()->shadowRegion().boundingRect();
-    return r;
+    return rect().adjusted(-padding_left, -padding_top, padding_top, padding_bottom);
 }
 
 QRect Deleted::transparentRect() const

geometry.cpp

@@ -1914,7 +1914,7 @@ void Client::setGeometry(int x, int y, int w, int h, ForceGeometry_t force)
         discardWindowPixmap();
         emit geometryShapeChanged(this, geom_before_block);
     }
-    const QRect deco_rect = decorationRect().translated(geom.x(), geom.y());
+    const QRect deco_rect = visibleRect();
     addLayerRepaint(deco_rect_before_block);
     addLayerRepaint(deco_rect);
     geom_before_block = geom;
@@ -1981,7 +1981,7 @@ void Client::plainResize(int w, int h, ForceGeometry_t force)
     workspace()->checkUnredirect();
     discardWindowPixmap();
     emit geometryShapeChanged(this, geom_before_block);
-    const QRect deco_rect = decorationRect().translated(geom.x(), geom.y());
+    const QRect deco_rect = visibleRect();
     addLayerRepaint(deco_rect_before_block);
     addLayerRepaint(deco_rect);
     geom_before_block = geom;
@@ -2028,7 +2028,7 @@ void Client::move(int x, int y, ForceGeometry_t force)
     workspace()->tiling()->notifyTilingWindowMove(this, moveResizeGeom, initialMoveResizeGeom);
 #endif
     // client itself is not damaged
-    const QRect deco_rect = decorationRect().translated(geom.x(), geom.y());
+    const QRect deco_rect = visibleRect();
     addLayerRepaint(deco_rect_before_block);
     addLayerRepaint(deco_rect);   // trigger repaint of window's new location
     geom_before_block = geom;

scene.cpp

@@ -536,7 +536,7 @@ WindowQuadList Scene::Window::buildQuads(bool force) const
     if (cached_quad_list != NULL && !force)
         return *cached_quad_list;
     WindowQuadList ret;
-    if (toplevel->clientPos() == QPoint(0, 0) && toplevel->clientSize() == toplevel->visibleRect().size())
+    if (toplevel->clientPos() == QPoint(0, 0) && toplevel->clientSize() == toplevel->decorationRect().size())
         ret = makeQuads(WindowQuadContents, shape());  // has no decoration
     else {
         Client *client = dynamic_cast<Client*>(toplevel);

scene_xrender.cpp

@@ -283,6 +283,7 @@ void SceneXrender::windowAdded(Toplevel* c)
 //****************************************
 
 QPixmap *SceneXrender::Window::temp_pixmap = 0;
+QRect SceneXrender::Window::temp_visibleRect;
 
 SceneXrender::Window::Window(Toplevel* c)
     : Scene::Window(c)
@@ -411,14 +412,14 @@ QPoint SceneXrender::Window::mapToScreen(int mask, const WindowPaintData &data,
 
 void SceneXrender::Window::prepareTempPixmap()
 {
-    const QRect r = static_cast<Client*>(toplevel)->decorationRect();
+    temp_visibleRect = toplevel->visibleRect().translated(-toplevel->pos());
 
     if (temp_pixmap && Extensions::nonNativePixmaps())
         XFreePixmap(display(), temp_pixmap->handle());   // The picture owns the pixmap now
     if (!temp_pixmap)
-        temp_pixmap = new QPixmap(r.width(), r.height());
-    else if (temp_pixmap->width() < r.width() || temp_pixmap->height() < r.height()) {
-        *temp_pixmap = QPixmap(r.width(), r.height());
+        temp_pixmap = new QPixmap(temp_visibleRect.size());
+    else if (temp_pixmap->width() < temp_visibleRect.width() || temp_pixmap->height() < temp_visibleRect.height()) {
+        *temp_pixmap = QPixmap(temp_visibleRect.size());
         scene_setXRenderOffscreenTarget(0); // invalidate, better crash than cause weird results for developers
     }
     if (Extensions::nonNativePixmaps()) {
@@ -471,9 +472,7 @@ void SceneXrender::Window::performPaint(int mask, QRegion region, WindowPaintDat
     Client *client = dynamic_cast<Client*>(toplevel);
     Deleted *deleted = dynamic_cast<Deleted*>(toplevel);
     const QRect decorationRect = toplevel->decorationRect();
-    if (client && Workspace::self()->decorationHasAlpha())
-        transformed_shape = decorationRect;
-    else if (deleted && Workspace::self()->decorationHasAlpha())
+    if ((client || deleted) && Workspace::self()->decorationHasAlpha())
         transformed_shape = decorationRect;
     else
         transformed_shape = shape();
@@ -538,9 +537,10 @@ void SceneXrender::Window::performPaint(int mask, QRegion region, WindowPaintDat
 
     Picture renderTarget = buffer;
     if (blitInTempPixmap) {
-        if (scene_xRenderOffscreenTarget())
+        if (scene_xRenderOffscreenTarget()) {
+            temp_visibleRect = toplevel->visibleRect().translated(-toplevel->pos());
             renderTarget = *scene_xRenderOffscreenTarget();
-        else {
+        } else {
             prepareTempPixmap();
             renderTarget = temp_pixmap->x11PictureHandle();
         }
@@ -568,7 +568,7 @@ void SceneXrender::Window::performPaint(int mask, QRegion region, WindowPaintDat
         //END OF STUPID RADEON HACK
     }
 #define MAP_RECT_TO_TARGET(_RECT_) \
-        if (blitInTempPixmap) _RECT_.translate(-decorationRect.topLeft()); else _RECT_ = mapToScreen(mask, data, _RECT_)
+        if (blitInTempPixmap) _RECT_.translate(-temp_visibleRect.topLeft()); else _RECT_ = mapToScreen(mask, data, _RECT_)
 
     //BEGIN deco preparations
     bool noBorder = true;
@@ -624,7 +624,7 @@ void SceneXrender::Window::performPaint(int mask, QRegion region, WindowPaintDat
     //BEGIN client preparations
     QRect dr = cr;
     if (blitInTempPixmap) {
-        dr.translate(-decorationRect.topLeft());
+        dr.translate(-temp_visibleRect.topLeft());
     } else {
         dr = mapToScreen(mask, data, dr); // Destination rect
         if (scaled) {
@@ -685,13 +685,14 @@ XRenderComposite(display(), PictOpOver, _PART_->x11PictureHandle(), decorationAl
             // fake brightness change by overlaying black
             XRenderColor col = { 0, 0, 0, 0xffff *(1 - data.brightness) * data.opacity };
             if (blitInTempPixmap) {
-                XRenderFillRectangle(display(), PictOpOver, renderTarget, &col, -decorationRect.left(), -decorationRect.top(), width(), height());
+                XRenderFillRectangle(display(), PictOpOver, renderTarget, &col,
+                                     -temp_visibleRect.left(), -temp_visibleRect.top(), width(), height());
             } else {
                 XRenderFillRectangle(display(), PictOpOver, renderTarget, &col, wr.x(), wr.y(), wr.width(), wr.height());
             }
         }
         if (blitInTempPixmap) {
-            const QRect r = mapToScreen(mask, data, decorationRect);
+            const QRect r = mapToScreen(mask, data, temp_visibleRect);
             XRenderSetPictureTransform(display(), temp_pixmap->x11PictureHandle(), &xform);
             XRenderSetPictureFilter(display(), temp_pixmap->x11PictureHandle(), const_cast<char*>("good"), NULL, 0);
             XRenderComposite(display(), PictOpOver, temp_pixmap->x11PictureHandle(), None, buffer,

scene_xrender.h

@@ -91,6 +91,7 @@ private:
     double alpha_cached_opacity;
     QRegion transformed_shape;
     static QPixmap *temp_pixmap;
+    static QRect temp_visibleRect;
 };
 
 class SceneXrender::EffectFrame

toplevel.cpp

@@ -96,10 +96,7 @@ QDebug& operator<<(QDebug& stream, const ConstToplevelList& list)
 
 QRect Toplevel::decorationRect() const
 {
-    QRect r(rect());
-    if (hasShadow())
-        r |= shadow()->shadowRegion().boundingRect();
-    return r;
+    return rect();
 }
 
 void Toplevel::detectShape(Window id)