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Diffstat (limited to 'src/widgets/graphicsview/qgraphicsscene_p.h')
-rw-r--r-- | src/widgets/graphicsview/qgraphicsscene_p.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/widgets/graphicsview/qgraphicsscene_p.h b/src/widgets/graphicsview/qgraphicsscene_p.h index a2d13436fc..14bafe6678 100644 --- a/src/widgets/graphicsview/qgraphicsscene_p.h +++ b/src/widgets/graphicsview/qgraphicsscene_p.h @@ -69,6 +69,9 @@ #include <QtWidgets/qstyle.h> #include <QtWidgets/qstyleoption.h> +#include <set> +#include <tuple> + QT_REQUIRE_CONFIG(graphicsview); QT_BEGIN_NAMESPACE @@ -122,7 +125,19 @@ public: QRectF growingItemsBoundingRect; void _q_emitUpdated(); - QList<QRectF> updatedRects; + + struct UpdatedRectsCmp + { + bool operator() (const QRectF &a, const QRectF &b) const noexcept + { + return std::make_tuple(a.y(), a.x(), a.height(), a.width()) + < std::make_tuple(b.y(), b.x(), b.height(), b.width()); + } + }; + + // std::set was used here instead of std::unordered_set due to requiring only a comparator and + // showing equivalent performance in empirical measurements within the ranges of interest... + std::set<QRectF, UpdatedRectsCmp> updatedRects; QPainterPath selectionArea; int selectionChanging; |