contentsRect() function, consistent with QGraphicsWidget::contentsRect()

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=851491

panelsvg.cpp

@@ -62,7 +62,7 @@ public:
     int leftWidth;
     int rightWidth;
     int bottomHeight;
-    
+
     //margins, are equal to the measures by default
     int topMargin;
     int leftMargin;
@@ -313,6 +313,20 @@ void PanelSvg::getMargins(qreal &left, qreal &top, qreal &right, qreal &bottom)
     bottom = panel->bottomMargin;
 }
 
+QRectF PanelSvg::contentsRect() const
+{
+    QSizeF size(panelSize());
+
+    if (size.isValid()) {
+        QRectF rect(QPointF(0, 0), size);
+        PanelData *panel = d->panels[d->prefix];
+
+        return rect.adjusted(panel->leftMargin, panel->topMargin, -panel->rightMargin, -panel->bottomMargin);
+    } else {
+        return QRectF();
+    }
+}
+
 QBitmap PanelSvg::mask() const
 {
     PanelData *panel = d->panels[d->prefix];

panelsvg.h

@@ -118,6 +118,11 @@ class PLASMA_EXPORT PanelSvg : public Svg
          */
         void getMargins(qreal &left, qreal &top, qreal &right, qreal &bottom) const;
 
+        /**
+         * @return the rectangle of the center element, taking the margins into account.
+         */
+        QRectF contentsRect() const;
+
         /**
          * Sets the prefix (@see setElementPrefix) to 'north', 'south', 'west' and 'east'
          * when the location is TopEdge, BottomEdge, LeftEdge and RightEdge,