37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
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#include "locateNode.h"
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#include <QtCore/QList>
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#include <QtWidgets/QGraphicsScene>
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#include "nodeGraphicsObject.h"
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NodeGraphicsObject *locateNodeAt(QPointF scenePoint,
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QGraphicsScene &scene,
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QTransform const &viewTransform)
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{
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// items under cursor
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QList<QGraphicsItem *> items = scene.items(scenePoint,
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Qt::IntersectsItemShape,
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Qt::DescendingOrder,
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viewTransform);
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// items convertable to NodeGraphicsObject
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std::vector<QGraphicsItem *> filteredItems;
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std::copy_if(items.begin(),
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items.end(),
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std::back_inserter(filteredItems),
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[](QGraphicsItem *item) {
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return (qgraphicsitem_cast<NodeGraphicsObject *>(item) != nullptr);
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});
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NodeGraphicsObject *node = nullptr;
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if (!filteredItems.empty()) {
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QGraphicsItem *graphicsItem = filteredItems.front();
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node = dynamic_cast<NodeGraphicsObject *>(graphicsItem);
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}
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return node;
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}
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