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                 unsigned nsn = i->object->get_n_snap_nodes();
  17                 unsigned j;
  18                 for(j=0; j<nls; ++j)
  19                         if(!o.count(i->object->get_link(j)))
  20                                 boundaries.push_back(Boundary(&*i, j));
  21                 for(; j<nsn; ++j)
  22                         boundaries.push_back(Boundary(&*i, j));
  23         }
  24
  25         snap_targets = designer.get_layout().get_all<Object>();
  26         for(ObjectArray::const_iterator i=objects.begin(); i!=objects.end(); ++i)
  27                 snap_targets.erase(i->object);
  28 }
  29
  30 void MoveTool::pointer_motion()
  31 {
  32         Vector offset = center+ground_pointer-origin;
  33         for(vector<MObject>::iterator i=objects.begin(); i!=objects.end(); ++i)
  34         {
  35                 i->object->set_position(offset+i->original_position);
  36                 i->object->set_rotation(i->original_rotation);
  37         }
  38
  39         float limit = max(designer.get_layout().get_catalogue().get_gauge(),
  40                 designer.get_camera_controller().get_view_scale()/100.0f);
  41         MObject *snapped = 0;
  42         for(list<Boundary>::iterator i=boundaries.begin(); (!snapped && i!=boundaries.end()); ++i)
  43         {
  44                 for(set<Object *>::const_iterator j=snap_targets.begin(); (!snapped && j!=snap_targets.end()); ++j)
  45                         if((*i)->snap_to(**j, limit))
  46                                 snapped = i->object;
  47         }
  48
  49         if(snapped)
  50         {
  51                 Angle da = snapped->object->get_rotation()-snapped->original_rotation;
  52                 Transform trans = Transform::rotation(da, Vector(0, 0, 1));
  53                 const Vector &sp = snapped->object->get_position();
  54                 for(ObjectArray::iterator i=objects.begin(); i!=objects.end(); ++i)
  55                 {
  56                         if(&*i==snapped)
  57                                 continue;
  58
  59                         i->object->set_position(sp+trans.transform(i->original_position-snapped->original_position));
  60                         i->object->set_rotation(i->original_rotation+da);
  61                 }
  62         }
  63 }
  64
  65
  66 MoveTool::Boundary::Boundary(MObject *o, unsigned i):
  67         object(o),
  68         index(i)
  69 { }