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Copy pathAbstractNodeGeometry.cpp
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61 lines (44 loc) · 1.76 KB
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#include "AbstractNodeGeometry.hpp"
#include "AbstractGraphModel.hpp"
#include "StyleCollection.hpp"
#include <QMargins>
#include <cmath>
namespace QtNodes {
AbstractNodeGeometry::AbstractNodeGeometry(AbstractGraphModel &graphModel)
: _graphModel(graphModel)
{
//
}
QPointF AbstractNodeGeometry::portScenePosition(NodeId const nodeId,
PortType const portType,
PortIndex const index,
QTransform const &t) const
{
QPointF result = portPosition(nodeId, portType, index);
return t.map(result);
}
PortIndex AbstractNodeGeometry::checkPortHit(NodeId const nodeId,
PortType const portType,
QPointF const nodePoint) const
{
auto const &nodeStyle = StyleCollection::nodeStyle();
PortIndex result = InvalidPortIndex;
if (portType == PortType::None)
return result;
double const tolerance = 2.0 * nodeStyle.ConnectionPointDiameter;
size_t const n = _graphModel.nodeData<unsigned int>(nodeId,
(portType == PortType::Out)
? NodeRole::OutPortCount
: NodeRole::InPortCount);
for (unsigned int portIndex = 0; portIndex < n; ++portIndex) {
auto pp = portPosition(nodeId, portType, portIndex);
QPointF p = pp - nodePoint;
auto distance = std::sqrt(QPointF::dotProduct(p, p));
if (distance < tolerance) {
result = portIndex;
break;
}
}
return result;
}
} // namespace QtNodes