mirror of https://github.com/CGAL/cgal
86 lines
1.9 KiB
C++
86 lines
1.9 KiB
C++
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#ifndef CGAL_QT_CONSTRAINED_TRIANGULATION_GRAPHICS_ITEM_H
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#define CGAL_QT_CONSTRAINED_TRIANGULATION_GRAPHICS_ITEM_H
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#include <CGAL/Qt/TriangulationGraphicsItem.h>
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#include <QPen>
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class QGraphicsSceneMouseEvent;
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namespace CGAL {
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namespace Qt {
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template <typename T>
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class ConstrainedTriangulationGraphicsItem : public TriangulationGraphicsItem<T>
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{
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public:
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ConstrainedTriangulationGraphicsItem(T * t_)
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: TriangulationGraphicsItem<T>(t_)
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{
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constraints_pen = this->pen();
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constraints_pen.setColor(Qt::red);
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}
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void operator()(typename T::Face_handle fh);
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const QPen& constraintsPen() const
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{
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return constraints_pen;
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}
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void setConstraintsPen(const QPen& pen)
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{
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constraints_pen = pen;
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}
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protected:
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void drawAll(QPainter *painter);
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QPen constraints_pen;
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};
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template <typename T>
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void
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ConstrainedTriangulationGraphicsItem<T>::drawAll(QPainter *painter)
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{
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if(this->drawEdges()) {
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for(typename T::Finite_edges_iterator eit = this->t->finite_edges_begin();
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eit != this->t->finite_edges_end();
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++eit){
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if(this->t->is_constrained(*eit)){
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painter->setPen(constraintsPen());
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} else {
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painter->setPen(this->pen());
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}
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(*painter) << this->t->segment(*eit);
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}
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}
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this->paintVertices(painter);
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}
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template <typename T>
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void
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ConstrainedTriangulationGraphicsItem<T>::operator()(typename T::Face_handle fh)
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{
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for (int i=0; i<3; i++) {
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if (this->drawEdges() &&
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( fh < fh->neighbor(i) || this->t->is_infinite(fh->neighbor(i)) ) ) {
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if(this->t->is_constrained(typename T::Edge(fh,i))){
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this->m_painter->setPen(constraintsPen());
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} else {
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this->m_painter->setPen(this->pen());
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}
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(*this->m_painter) << this->t->segment(fh,i);
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}
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if(this->drawVertices()) {
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paintOneVertex(fh->vertex(i)->point());
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}
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}
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}
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} // namespace Qt
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} // namespace CGAL
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#endif // CGAL_Q_CONSTRAINED_TRIANGULATION_GRAPHICS_ITEM_H
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