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Diffstat (limited to 'src/gui/graphicsview/qgraphicsview.cpp')
| -rw-r--r-- | src/gui/graphicsview/qgraphicsview.cpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp index 3f9f443..ffe64aa 100644 --- a/src/gui/graphicsview/qgraphicsview.cpp +++ b/src/gui/graphicsview/qgraphicsview.cpp @@ -545,6 +545,32 @@ qint64 QGraphicsViewPrivate::verticalScroll() const /*! \internal + + Maps the given rectangle to the scene using QTransform::mapRect() +*/ +QRectF QGraphicsViewPrivate::mapRectToScene(const QRect &rect) const +{ + if (dirtyScroll) + const_cast<QGraphicsViewPrivate *>(this)->updateScroll(); + QRectF scrolled = QRectF(rect.translated(scrollX, scrollY)); + return identityMatrix ? scrolled : matrix.inverted().mapRect(scrolled); +} + + +/*! + \internal + + Maps the given rectangle from the scene using QTransform::mapRect() +*/ +QRectF QGraphicsViewPrivate::mapRectFromScene(const QRectF &rect) const +{ + if (dirtyScroll) + const_cast<QGraphicsViewPrivate *>(this)->updateScroll(); + return (identityMatrix ? rect : matrix.mapRect(rect)).translated(-scrollX, -scrollY); +} + +/*! + \internal */ void QGraphicsViewPrivate::updateScroll() { |