Fixed clipping bug in GL 2 paint engine (visible in arthur demos).

QVectorPath::hints() is not a strict bit field, and thus can not be
anded with RectangleHint. Instead, QVectorPath::shape() should be
directly compared with RectangleHint to check if the vector path is a
rectangle or not. In this case the first four points of a regular
painter path were treated as a rectangle with dire consequences.

Reviewed-by: Tom

1 files changed, 1 insertions, 1 deletions

diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 2901c1e..136a078 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -1499,7 +1499,7 @@ void QGL2PaintEngineEx::clip(const QVectorPath &path, Qt::ClipOperation op)
     if (op == Qt::ReplaceClip && !d->hasClipOperations())
         op = Qt::IntersectClip;
 
-    if (!path.isEmpty() && op == Qt::IntersectClip && (path.hints() & QVectorPath::RectangleHint)) {
+    if (!path.isEmpty() && op == Qt::IntersectClip && (path.shape() == QVectorPath::RectangleHint)) {
         const QPointF* const points = reinterpret_cast<const QPointF*>(path.points());
         QRectF rect(points[0], points[2]);