diff options
Diffstat (limited to 'src/widgets/graphicsview/qgraphicsview.cpp')
-rw-r--r-- | src/widgets/graphicsview/qgraphicsview.cpp | 80 |
1 files changed, 37 insertions, 43 deletions
diff --git a/src/widgets/graphicsview/qgraphicsview.cpp b/src/widgets/graphicsview/qgraphicsview.cpp index 22ec829507..9c04a3c193 100644 --- a/src/widgets/graphicsview/qgraphicsview.cpp +++ b/src/widgets/graphicsview/qgraphicsview.cpp @@ -706,56 +706,50 @@ QRegion QGraphicsViewPrivate::rubberBandRegion(const QWidget *widget, const QRec return tmp; } -void QGraphicsViewPrivate::updateRubberBand(QMouseEvent *event) +void QGraphicsViewPrivate::updateRubberBand(const QMouseEvent *event) { Q_Q(QGraphicsView); - if (dragMode == QGraphicsView::RubberBandDrag && sceneInteractionAllowed) { - storeMouseEvent(event); - if (rubberBanding) { - // Check for enough drag distance - if ((mousePressViewPoint - event->pos()).manhattanLength() - < QApplication::startDragDistance()) { - return; - } + if (dragMode != QGraphicsView::RubberBandDrag || !sceneInteractionAllowed || !rubberBanding) + return; + // Check for enough drag distance + if ((mousePressViewPoint - event->pos()).manhattanLength() < QApplication::startDragDistance()) + return; - // Update old rubberband - if (viewportUpdateMode != QGraphicsView::NoViewportUpdate && !rubberBandRect.isEmpty()) { - if (viewportUpdateMode != QGraphicsView::FullViewportUpdate) - q->viewport()->update(rubberBandRegion(q->viewport(), rubberBandRect)); - else - updateAll(); - } + // Update old rubberband + if (viewportUpdateMode != QGraphicsView::NoViewportUpdate && !rubberBandRect.isEmpty()) { + if (viewportUpdateMode != QGraphicsView::FullViewportUpdate) + q->viewport()->update(rubberBandRegion(q->viewport(), rubberBandRect)); + else + updateAll(); + } - // Stop rubber banding if the user has let go of all buttons (even - // if we didn't get the release events). - if (!event->buttons()) { - rubberBanding = false; - rubberBandRect = QRect(); - return; - } + // Stop rubber banding if the user has let go of all buttons (even + // if we didn't get the release events). + if (!event->buttons()) { + rubberBanding = false; + rubberBandRect = QRect(); + return; + } - // Update rubberband position - const QPoint mp = q->mapFromScene(mousePressScenePoint); - const QPoint ep = event->pos(); - rubberBandRect = QRect(qMin(mp.x(), ep.x()), qMin(mp.y(), ep.y()), - qAbs(mp.x() - ep.x()) + 1, qAbs(mp.y() - ep.y()) + 1); + // Update rubberband position + const QPoint mp = q->mapFromScene(mousePressScenePoint); + const QPoint ep = event->pos(); + rubberBandRect = QRect(qMin(mp.x(), ep.x()), qMin(mp.y(), ep.y()), + qAbs(mp.x() - ep.x()) + 1, qAbs(mp.y() - ep.y()) + 1); - // Update new rubberband - if (viewportUpdateMode != QGraphicsView::NoViewportUpdate){ - if (viewportUpdateMode != QGraphicsView::FullViewportUpdate) - q->viewport()->update(rubberBandRegion(q->viewport(), rubberBandRect)); - else - updateAll(); - } - // Set the new selection area - QPainterPath selectionArea; - selectionArea.addPolygon(mapToScene(rubberBandRect)); - selectionArea.closeSubpath(); - if (scene) - scene->setSelectionArea(selectionArea, rubberBandSelectionMode, - q->viewportTransform()); - } + // Update new rubberband + if (viewportUpdateMode != QGraphicsView::NoViewportUpdate) { + if (viewportUpdateMode != QGraphicsView::FullViewportUpdate) + q->viewport()->update(rubberBandRegion(q->viewport(), rubberBandRect)); + else + updateAll(); } + // Set the new selection area + QPainterPath selectionArea; + selectionArea.addPolygon(mapToScene(rubberBandRect)); + selectionArea.closeSubpath(); + if (scene) + scene->setSelectionArea(selectionArea, rubberBandSelectionMode, q->viewportTransform()); } #endif |