source/designer/selection.cpp

   1 #include <algorithm>
   2 #include "libr2c2/block.h"
   3 #include "selection.h"
   4
   5 using namespace std;
   6 using namespace R2C2;
   7 using namespace Msp;
   8
   9 Object *Selection::get_object() const
  10 {
  11         if(objects.empty())
  12                 return 0;
  13         else
  14                 return *objects.begin();
  15 }
  16
  17 void Selection::clear()
  18 {
  19         objects.clear();
  20         signal_changed.emit();
  21 }
  22
  23 void Selection::add_object(Object *o)
  24 {
  25         if(objects.insert(o).second)
  26                 signal_changed.emit();
  27 }
  28
  29 void Selection::remove_object(Object *o)
  30 {
  31         if(objects.erase(o))
  32                 signal_changed.emit();
  33 }
  34
  35 void Selection::toggle_object(Object *o)
  36 {
  37         if(!objects.erase(o))
  38                 objects.insert(o);
  39
  40         signal_changed.emit();
  41 }
  42
  43 void Selection::select_more()
  44 {
  45         set<Object *> new_objects;
  46         for(set<Object *>::iterator i=objects.begin(); i!=objects.end(); ++i)
  47         {
  48                 unsigned nls = (*i)->get_n_link_slots();
  49                 for(unsigned j=0; j<nls; ++j)
  50                         if(Object *obj = (*i)->get_link(j))
  51                                 new_objects.insert(obj);
  52         }
  53
  54         bool changed = false;
  55         for(set<Object *>::iterator i=new_objects.begin(); i!=new_objects.end(); ++i)
  56                 if(objects.insert(*i).second)
  57                         changed = true;
  58
  59         if(changed)
  60                 signal_changed.emit();
  61 }
  62
  63 void Selection::select_linked()
  64 {
  65         bool changed = false;
  66         list<Object *> queue(objects.begin(), objects.end());
  67
  68         while(!queue.empty())
  69         {
  70                 Object *obj = queue.front();
  71                 queue.pop_front();
  72
  73                 unsigned nls = obj->get_n_link_slots();
  74                 for(unsigned j=0; j<nls; ++j)
  75                         if(Object *linked = obj->get_link(j))
  76                                 if(objects.insert(linked).second)
  77                                 {
  78                                         queue.push_back(linked);
  79                                         changed = true;
  80                                 }
  81         }
  82
  83         if(changed)
  84                 signal_changed.emit();
  85 }
  86
  87 void Selection::select_blocks()
  88 {
  89         bool changed = false;
  90         for(set<Object *>::iterator i=objects.begin(); i!=objects.end(); ++i)
  91                 if(Track *track = dynamic_cast<Track *>(*i))
  92                 {
  93                         const set<Track *> &btracks = track->get_block().get_tracks();
  94                         for(set<Track *>::iterator j=btracks.begin(); j!=btracks.end(); ++j)
  95                                 if(objects.insert(*j).second)
  96                                         changed = true;
  97                 }
  98
  99         if(changed)
 100                 signal_changed.emit();
 101 }