source/designer/movetool.cpp

   1 #include "libr2c2/layout.h"
   2 #include "designer.h"
   3 #include "movetool.h"
   4
   5 using namespace std;
   6 using namespace Msp;
   7 using namespace R2C2;
   8
   9 MoveTool::MoveTool(Designer &d, Input::Keyboard &k, Input::Mouse &m, const set<Object *> &o):
  10         Manipulator(d, k, m, o),
  11         origin(ground_pointer)
  12 {
  13         for(ObjectArray::iterator i=objects.begin(); i!=objects.end(); ++i)
  14         {
  15                 unsigned nls = i->object->get_n_link_slots();
  16                 for(unsigned j=0; j<nls; ++j)
  17                         if(!o.count(i->object->get_link(j)))
  18                                 boundaries.push_back(Boundary(&*i, j));
  19         }
  20
  21         snap_targets = designer.get_layout().get_all<Object>();
  22         for(ObjectArray::const_iterator i=objects.begin(); i!=objects.end(); ++i)
  23                 snap_targets.erase(i->object);
  24 }
  25
  26 void MoveTool::pointer_motion()
  27 {
  28         Vector offset = center+ground_pointer-origin;
  29         for(vector<MObject>::iterator i=objects.begin(); i!=objects.end(); ++i)
  30         {
  31                 i->object->set_position(offset+i->original_position);
  32                 i->object->set_rotation(i->original_rotation);
  33         }
  34
  35         float limit = max(designer.get_layout().get_catalogue().get_gauge(),
  36                 designer.get_camera_controller().get_view_scale()/100.0f);
  37         MObject *snapped = 0;
  38         for(list<Boundary>::iterator i=boundaries.begin(); (!snapped && i!=boundaries.end()); ++i)
  39         {
  40                 for(set<Object *>::const_iterator j=snap_targets.begin(); (!snapped && j!=snap_targets.end()); ++j)
  41                         if((*i)->snap_to(**j, limit))
  42                                 snapped = i->object;
  43         }
  44
  45         if(snapped)
  46         {
  47                 Angle da = snapped->object->get_rotation()-snapped->original_rotation;
  48                 Transform trans = Transform::rotation(da, Vector(0, 0, 1));
  49                 const Vector &sp = snapped->object->get_position();
  50                 for(ObjectArray::iterator i=objects.begin(); i!=objects.end(); ++i)
  51                 {
  52                         if(&*i==snapped)
  53                                 continue;
  54
  55                         i->object->set_position(sp+trans.transform(i->original_position-snapped->original_position));
  56                         i->object->set_rotation(i->original_rotation+da);
  57                 }
  58         }
  59 }
  60
  61
  62 MoveTool::Boundary::Boundary(MObject *o, unsigned i):
  63         object(o),
  64         index(i)
  65 { }