Update code to follow last api

Basic_viewer/examples/Basic_viewer/draw_several_windows.cpp

@@ -71,7 +71,7 @@ int main(void)
 
   CGAL::Qt::Basic_viewer bv1(mainWindow, scene1);
   CGAL::Qt::Basic_viewer bv2(mainWindow, scene2);
-  bv1.set_draw_vertices(true);
+  bv1.draw_vertices(true);
 
   layout->addWidget(&bv1);
   layout->addWidget(&bv2);

Basic_viewer/examples/Basic_viewer/draw_surface_mesh_small_faces.cpp

@@ -106,7 +106,7 @@ int main(int argc, char* argv[])
   if(app)
   {
     app.basic_viewer().on_key_pressed=
-      [&sm, &gsosm, &buffer] (QKeyEvent* e, CGAL::Basic_viewer_qt* basic_viewer) -> bool
+      [&sm, &gsosm, &buffer] (QKeyEvent* e, CGAL::Qt::Basic_viewer* basic_viewer) -> bool
       {
         const ::Qt::KeyboardModifiers modifiers = e->modifiers();
         if ((e->key() == ::Qt::Key_I) && (modifiers == ::Qt::NoButton))

Basic_viewer/include/CGAL/Graphics_scene.h

@@ -239,7 +239,7 @@ public:
 
   void face_begin()
   {
-    if (is_a_face_started())
+    if (a_face_started())
     {
       std::cerr
           << "You cannot start a new face before to finish the previous one."
@@ -251,7 +251,7 @@ public:
 
   void face_begin(const CGAL::IO::Color &acolor)
   {
-    if (is_a_face_started())
+    if (a_face_started())
     {
       std::cerr
           << "You cannot start a new face before to finish the previous one."
@@ -342,7 +342,7 @@ public:
   // Returns true if the data structure lies on a XY or XZ or YZ plane
   bool is_two_dimensional() const
   {
-    return (!is_empty() && (has_zero_x() || has_zero_y() || has_zero_z()));
+    return (!empty() && (has_zero_x() || has_zero_y() || has_zero_z()));
   }
 
   void clear()

Basic_viewer/include/CGAL/Qt/Basic_viewer.h

@@ -155,7 +155,7 @@ public:
     resize(CGAL_BASIC_VIEWER_INIT_SIZE_X, CGAL_BASIC_VIEWER_INIT_SIZE_Y);
 
     if (inverse_normal)
-    { reverse_normals(); }
+    { reverse_all_normals(); }
   }
 
   ~Basic_viewer()
@@ -1254,7 +1254,7 @@ protected:
       }
       else if ((e->key()==::Qt::Key_N) && (modifiers==::Qt::NoButton))
       {
-        reverse_normals();
+        reverse_all_normals();
         displayMessage(QString("Inverse normal=%1.").arg(m_inverse_normal?"true":"false"));
         redraw();
       }

Boolean_set_operations_2/include/CGAL/draw_polygon_set_2.h

@@ -164,7 +164,7 @@ public:
    */
   virtual void add_elements()
   {
-    this->clear();
+    graphics_scene.clear();
     std::vector<Pwh> pwhs;
     m_ps.polygons_with_holes(std::back_inserter(pwhs));
     for (const auto& pwh : pwhs)

Nef_3/include/CGAL/draw_nef_3.h

@@ -232,7 +232,7 @@ void compute_elements(const Nef_Polyhedron &nef,
     { nef.visit_shell_objects(SFace_const_handle(it), V); }
   }
 
-  graphics_scene.negate_all_normals();
+  graphics_scene.reverse_all_normals();
 }
 
 } // namespace draw_function_for_nef_polyhedron

Periodic_2_triangulation_2/include/CGAL/draw_periodic_2_triangulation_2.h

@@ -41,7 +41,7 @@ struct Graphics_scene_options_periodic_2_triangulation_2 :
   { return m_draw_domain; }
   void set_draw_domain(bool b)
   { m_draw_domain=b; }
-  void negate_draw_domain()
+  void toggle_draw_domain()
   { m_draw_domain=!m_draw_domain; }
 
   typename DS::Iterator_type current_display_type() const

Voronoi_diagram_2/include/CGAL/draw_voronoi_diagram_2.h

@@ -46,12 +46,12 @@ struct Graphics_scene_options_voronoi :
   void disable_voronoi_vertices() { m_draw_voronoi_vertices=false; }
   void enable_voronoi_vertices() { m_draw_voronoi_vertices=true; }
   bool are_voronoi_vertices_enabled() const { return m_draw_voronoi_vertices; }
-  void negate_draw_voronoi_vertices() { m_draw_voronoi_vertices=!m_draw_voronoi_vertices; }
+  void toggle_draw_voronoi_vertices() { m_draw_voronoi_vertices=!m_draw_voronoi_vertices; }
 
   void disable_dual_vertices() { m_draw_dual_vertices=false; }
   void enable_dual_vertices() { m_draw_dual_vertices=true; }
   bool are_dual_vertices_enabled() const { return m_draw_dual_vertices; }
-  void negate_draw_dual_vertices() { m_draw_dual_vertices=!m_draw_dual_vertices; }
+  void toggle_draw_dual_vertices() { m_draw_dual_vertices=!m_draw_dual_vertices; }
 
   CGAL::IO::Color dual_vertex_color;
   CGAL::IO::Color ray_color;
@@ -394,7 +394,7 @@ void draw(const CGAL_VORONOI_TYPE& av2,
         const ::Qt::KeyboardModifiers modifiers = e->modifiers();
         if ((e->key() == ::Qt::Key_R) && (modifiers == ::Qt::NoButton))
         {
-          basic_viewer->negate_draw_rays();
+          basic_viewer->toggle_draw_rays();
           basic_viewer->displayMessage
             (QString("Draw rays=%1.").arg(basic_viewer->get_draw_rays()?"true":"false"));