Fixed a bug in implementation of sizeHint() when there was a constraint

The constraint was not adjusted with the margins before passing it on
to the engine (which is unaware of the margins).

Task-number: Found during QT-3570
Reviewed-by: Paul

2 files changed, 4 insertions, 2 deletions

diff --git a/src/gui/graphicsview/qgraphicsgridlayout.cpp b/src/gui/graphicsview/qgraphicsgridlayout.cpp
index 062b5ac..3fc7f10 100644
--- a/src/gui/graphicsview/qgraphicsgridlayout.cpp
+++ b/src/gui/graphicsview/qgraphicsgridlayout.cpp
@@ -641,7 +641,8 @@ QSizeF QGraphicsGridLayout::sizeHint(Qt::SizeHint which, const QSizeF &constrain
     Q_D(const QGraphicsGridLayout);
     qreal left, top, right, bottom;
     getContentsMargins(&left, &top, &right, &bottom);
-    return d->engine.sizeHint(d->styleInfo(), which , constraint) + QSizeF(left + right, top + bottom);
+    const QSizeF extraMargins(left + right, top + bottom);
+    return d->engine.sizeHint(d->styleInfo(), which , constraint - extraMargins) + extraMargins;
 }
 
 
diff --git a/src/gui/graphicsview/qgraphicslinearlayout.cpp b/src/gui/graphicsview/qgraphicslinearlayout.cpp
index 37408ef..1588364 100644
--- a/src/gui/graphicsview/qgraphicslinearlayout.cpp
+++ b/src/gui/graphicsview/qgraphicslinearlayout.cpp
@@ -528,7 +528,8 @@ QSizeF QGraphicsLinearLayout::sizeHint(Qt::SizeHint which, const QSizeF &constra
     Q_D(const QGraphicsLinearLayout);
     qreal left, top, right, bottom;
     getContentsMargins(&left, &top, &right, &bottom);
-    return d->engine.sizeHint(d->styleInfo(), which , constraint) + QSizeF(left + right, top + bottom);
+    const QSizeF extraMargins(left + right, top + bottom);
+    return d->engine.sizeHint(d->styleInfo(), which , constraint - extraMargins) + extraMargins;
 }
 
 /*!