mirror of https://github.com/CGAL/cgal
Applied new APIs version on Straight polygon 2.
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Mostafa-ashraf19
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a84a2eea08
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@ -13,10 +13,13 @@
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//
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//
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// Author(s) : Guillaume Damiand <guillaume.damiand@liris.cnrs.fr>
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// Mostafa Ashraf <mostaphaashraf1996@gmail.com>
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#ifndef CGAL_DRAW_POLYGON_2_H
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#define CGAL_DRAW_POLYGON_2_H
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#include <CGAL/Drawing_functor.h>
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#include <CGAL/Graphic_buffer.h>
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#include <CGAL/Qt/Basic_viewer_qt.h>
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#ifdef DOXYGEN_RUNNING
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@ -39,99 +42,65 @@ void draw(const P& ap);
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#endif
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#ifdef CGAL_USE_BASIC_VIEWER
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#include <CGAL/Qt/init_ogl_context.h>
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#include <CGAL/Polygon_2.h>
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#include <CGAL/Qt/init_ogl_context.h>
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#include <CGAL/Random.h>
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namespace CGAL
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{
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namespace CGAL {
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namespace draw_function_for_p2 {
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template <typename BufferType = float, class P2>
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void compute_elements(CGAL::GraphicBuffer<BufferType> &graphic_buffer,
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const P2 *p2) {
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// Viewer class for Polygon_2
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template<class P2>
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class SimplePolygon2ViewerQt : public Basic_viewer_qt
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{
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typedef Basic_viewer_qt Base;
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typedef typename P2::Point_2 Point;
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public:
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/// Construct the viewer.
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/// @param ap2 the polygon to view
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/// @param title the title of the window
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SimplePolygon2ViewerQt(QWidget* parent, const P2& ap2,
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const char* title="Basic Polygon_2 Viewer") :
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// First draw: vertices; edges, faces; multi-color; no inverse normal
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Base(parent, title, true, true, true, false, false),
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p2(ap2)
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{
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compute_elements();
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if (p2->is_empty())
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return;
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Point prev = p2->vertex(p2->size() - 1);
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CGAL::IO::Color c(75, 160, 255);
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graphic_buffer.face_begin(c);
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for (typename P2::Vertex_const_iterator i = p2->vertices_begin();
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i != p2->vertices_end(); ++i) {
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graphic_buffer.add_point(*i); // Add vertex
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graphic_buffer.add_segment(prev, *i); // Add segment with previous point
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graphic_buffer.add_point_in_face(*i); // Add point in face
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prev = *i;
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}
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protected:
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void compute_elements()
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{
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clear();
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graphic_buffer.face_end();
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}
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if (p2.is_empty()) return;
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} // namespace draw_function_for_p2
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Point prev=p2.vertex(p2.size()-1);
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CGAL::IO::Color c(75,160,255);
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face_begin(c);
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for (typename P2::Vertex_const_iterator i=p2.vertices_begin();
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i!=p2.vertices_end(); ++i)
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{
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add_point(*i); // Add vertex
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add_segment(prev, *i); // Add segment with previous point
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add_point_in_face(*i); // Add point in face
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prev=*i;
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}
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face_end();
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template <typename BufferType = float, class P2>
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void add_in_graphic_buffer_p2(CGAL::GraphicBuffer<BufferType> &graphic_buffer,
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const P2 *p2 = nullptr) {
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if (p2 != nullptr) {
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draw_function_for_p2::compute_elements(graphic_buffer, p2);
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}
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virtual void keyPressEvent(QKeyEvent *e)
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{
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// Test key pressed:
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// const ::Qt::KeyboardModifiers modifiers = e->modifiers();
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// if ((e->key()==Qt::Key_PageUp) && (modifiers==Qt::NoButton)) { ... }
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// Call: * compute_elements() if the model changed, followed by
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// * redraw() if some viewing parameters changed that implies some
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// modifications of the buffers
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// (eg. type of normal, color/mono)
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// * update() just to update the drawing
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// Call the base method to process others/classicals key
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Base::keyPressEvent(e);
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}
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protected:
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const P2& p2;
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};
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}
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// Specialization of draw function.
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template<class T, class C>
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void draw(const CGAL::Polygon_2<T, C>& ap2,
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const char* title="Polygon_2 Basic Viewer")
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{
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#if defined(CGAL_TEST_SUITE)
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bool cgal_test_suite=true;
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#else
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bool cgal_test_suite=qEnvironmentVariableIsSet("CGAL_TEST_SUITE");
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#endif
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#define CGAL_P2_TYPE CGAL::Polygon_2<T, C>
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if (!cgal_test_suite)
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{
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CGAL::Qt::init_ogl_context(4,3);
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int argc=1;
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const char* argv[2]={"t2_viewer", nullptr};
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QApplication app(argc,const_cast<char**>(argv));
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SimplePolygon2ViewerQt<CGAL::Polygon_2<T, C> >
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mainwindow(app.activeWindow(), ap2, title);
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mainwindow.show();
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app.exec();
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}
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template <class T, class C>
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void draw(const CGAL_P2_TYPE &ap2,
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const char *title = "Polygon_2 Basic Viewer") {
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// Drawing_functor<CGAL_P2_TYPE, typename CGAL_P2_TYPE::Vertex_const_handle,
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// typename CGAL_P2_TYPE::Halfedge_const_handle,
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// typename CGAL_P2_TYPE::Face_const_handle>
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// drawingFunctor;
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CGAL::GraphicBuffer<float> buffer;
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add_in_graphic_buffer_p2(buffer, &ap2);
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draw_buffer(buffer);
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}
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} // End namespace CGAL
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