source/3d/track.cpp

   1 #include <cmath>
   2 #include <msp/gl/matrix.h>
   3 #include <msp/gl/renderer.h>
   4 #include "libr2c2/tracktype.h"
   5 #include "endpoint.h"
   6 #include "layout.h"
   7 #include "path.h"
   8 #include "track.h"
   9 #include "tracktype.h"
  10
  11 using namespace std;
  12 using namespace Msp;
  13
  14 namespace R2C2 {
  15
  16 Track3D::Track3D(Layout3D &l, Track &t):
  17         Object3D(l, t),
  18         GL::ObjectInstance(l.get_catalogue().get_3d(t.get_type()).get_object()),
  19         track(t),
  20         type(layout.get_catalogue().get_3d(track.get_type()))
  21 {
  22         layout.get_scene().add(*this);
  23
  24         const vector<TrackType::Endpoint> &type_eps = track.get_type().get_endpoints();
  25         const vector<Track *> &links = track.get_links();
  26         for(unsigned i=0; i<type_eps.size(); ++i)
  27         {
  28                 if(!links[i] || links[i]>&track)
  29                         endpoints.push_back(new Endpoint3D(*this, i));
  30                 else
  31                         endpoints.push_back(0);
  32         }
  33
  34         track.signal_link_changed.connect(sigc::mem_fun(this, &Track3D::link_changed));
  35 }
  36
  37 Track3D::~Track3D()
  38 {
  39         layout.get_scene().remove(*this);
  40
  41         for(vector<Endpoint3D *>::iterator i=endpoints.begin(); i!=endpoints.end(); ++i)
  42                 delete *i;
  43 }
  44
  45 Vector Track3D::get_node() const
  46 {
  47         Geometry::BoundingBox<float, 3> bbox = track.get_type().get_shape()->get_axis_aligned_bounding_box();
  48         const Vector &minp = bbox.get_minimum_point();
  49         const Vector &maxp = bbox.get_maximum_point();
  50
  51         return matrix*((minp+maxp)/2.0f+Vector(0, 0, 0.02));
  52 }
  53
  54 void Track3D::setup_render(Msp::GL::Renderer &renderer, const GL::Tag &) const
  55 {
  56         renderer.matrix_stack() *= matrix;
  57 }
  58
  59 void Track3D::link_changed(unsigned i, Track *trk)
  60 {
  61         if(!trk || trk>&track)
  62         {
  63                 if(!endpoints[i])
  64                         endpoints[i] = new Endpoint3D(*this, i);
  65         }
  66         else if(endpoints[i])
  67         {
  68                 delete endpoints[i];
  69                 endpoints[i] = 0;
  70         }
  71 }
  72
  73 } // namespace R2C2