130 lines
3.3 KiB
C
130 lines
3.3 KiB
C
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// Copyright (c) 2008 GeometryFactory Sarl (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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// You can redistribute it and/or modify it under the terms of the GNU
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// General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0+
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//
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//
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// Author(s) : Andreas Fabri <Andreas.Fabri@geometryfactory.com>
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// Laurent Rineau <Laurent.Rineau@geometryfactory.com>
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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/license/GraphicsView.h>
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#include <CGAL/Qt/TriangulationGraphicsItem.h>
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#include <QPen>
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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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typedef typename T::Geom_traits Geom_traits;
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public:
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ConstrainedTriangulationGraphicsItem(T * t_)
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: TriangulationGraphicsItem<T>(t_), visible_constraints(true)
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{
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constraints_pen = this->edgesPen();
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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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QPen& constraintsPen()
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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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bool visibleConstraints() const
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{
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return visible_constraints;
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}
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void setVisibleConstraints(const bool b)
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{
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visible_constraints = b;
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this->update();
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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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private:
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bool visible_constraints;
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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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this->painterostream = PainterOstream<Geom_traits>(painter);
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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->visibleConstraints() && this->t->is_constrained(*eit)){
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painter->setPen(constraintsPen());
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this->painterostream << this->t->segment(*eit);
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} else if( this->visibleEdges() ){
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painter->setPen(this->edgesPen());
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this->painterostream << 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 ( fh < fh->neighbor(i) || this->t->is_infinite(fh->neighbor(i)) ) {
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if(this->visibleConstraints() && this->t->is_constrained(typename T::Edge(fh,i))){
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this->m_painter->setPen(constraintsPen());
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this->painterostream << this->t->segment(fh,i);
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} else if( this->visibleEdges() ){
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this->m_painter->setPen(this->edgesPen());
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this->painterostream << this->t->segment(fh,i);
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}
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}
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if(this->visibleVertices()) {
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this->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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