Merge branch '4.6' of scm.dev.nokia.troll.no:qt/qt into 4.6

1 files changed, 17 insertions, 9 deletions

diff --git a/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp b/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
index fb67278..a6f5992 100644
--- a/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
+++ b/src/gui/graphicsview/qgraphicsanchorlayout_p.cpp
@@ -1272,7 +1272,6 @@ void QGraphicsAnchorLayoutPrivate::createLayoutEdges()
     addAnchor_helper(layout, Qt::AnchorLeft, layout,
                      Qt::AnchorRight, data);
     data->maxSize = QWIDGETSIZE_MAX;
-    data->skipInPreferred = 1;
 
     // Save a reference to layout vertices
     layoutFirstVertex[Horizontal] = internalVertex(layout, Qt::AnchorLeft);
@@ -1284,7 +1283,6 @@ void QGraphicsAnchorLayoutPrivate::createLayoutEdges()
     addAnchor_helper(layout, Qt::AnchorTop, layout,
                      Qt::AnchorBottom, data);
     data->maxSize = QWIDGETSIZE_MAX;
-    data->skipInPreferred = 1;
 
     // Save a reference to layout vertices
     layoutFirstVertex[Vertical] = internalVertex(layout, Qt::AnchorTop);
@@ -2271,13 +2269,21 @@ QList<QSimplexConstraint *> QGraphicsAnchorLayoutPrivate::constraintsFromSizeHin
         layoutEdge = graph[orient].edgeData(layoutFirstVertex[orient], layoutCentralVertex[orient]);
     } else {
         layoutEdge = graph[orient].edgeData(layoutFirstVertex[orient], layoutLastVertex[orient]);
+    }
 
-        // If maxSize is less then "infinite", that means there are other anchors
-        // grouped together with this one. We can't ignore its maximum value so we
-        // set back the variable to NULL to prevent the continue condition from being
-        // satisfied in the loop below.
-        if (layoutEdge->maxSize < QWIDGETSIZE_MAX)
-            layoutEdge = 0;
+    // If maxSize is less then "infinite", that means there are other anchors
+    // grouped together with this one. We can't ignore its maximum value so we
+    // set back the variable to NULL to prevent the continue condition from being
+    // satisfied in the loop below.
+    const qreal expectedMax = layoutCentralVertex[orient] ? QWIDGETSIZE_MAX / 2 : QWIDGETSIZE_MAX;
+    qreal actualMax;
+    if (layoutEdge->from == layoutFirstVertex[orient]) {
+        actualMax = layoutEdge->maxSize;
+    } else {
+        actualMax = -layoutEdge->minSize;
+    }
+    if (actualMax != expectedMax) {
+        layoutEdge = 0;
     }
 
     // For each variable, create constraints based on size hints
@@ -2700,7 +2706,9 @@ bool QGraphicsAnchorLayoutPrivate::solvePreferred(const QList<QSimplexConstraint
     //
     for (int i = 0; i < variables.size(); ++i) {
         AnchorData *ad = variables.at(i);
-        if (ad->skipInPreferred)
+
+        // The layout original structure anchors are not relevant in preferred size calculation
+        if (ad->isLayoutAnchor)
             continue;
 
         QSimplexVariable *grower = new QSimplexVariable;