source/designer/extendtool.cpp

   1 #include <msp/strings/format.h>
   2 #include "libr2c2/articlenumber.h"
   3 #include "designer.h"
   4 #include "extendtool.h"
   5
   6 using namespace std;
   7 using namespace Msp;
   8 using namespace R2C2;
   9
  10 ExtendTool::ExtendTool(Designer &d, Input::Keyboard &k, Input::Mouse &m, const set<Object *> &objects):
  11         Tool(d, k, m),
  12         max_preference(0)
  13 {
  14         for(set<Object *>::const_iterator i=objects.begin(); i!=objects.end(); ++i)
  15                 if(Track *t = dynamic_cast<Track *>(*i))
  16                 {
  17                         unsigned nls = t->get_n_link_slots();
  18                         for(unsigned j=0; j<nls; ++j)
  19                                 if(!t->get_link(j))
  20                                         unlinked_endpoints.push_back(TrackIter(t, j));
  21                 }
  22
  23         if(unlinked_endpoints.empty())
  24         {
  25                 set_status("No free endpoints");
  26                 set_done(false);
  27         }
  28
  29         const Catalogue::ObjectMap &object_types = designer.get_catalogue().get_all();
  30         for(Catalogue::ObjectMap::const_iterator i=object_types.begin(); i!=object_types.end(); ++i)
  31                 if(const TrackType *tt = dynamic_cast<const TrackType *>(i->second))
  32                 {
  33                         const vector<TrackPart> &parts = tt->get_parts();
  34                         if(parts.size()!=1)
  35                                 continue;
  36                         if(parts.front().is_curved() || parts.front().is_dead_end())
  37                                 continue;
  38
  39                         types_by_length[parts.front().get_length()] = tt;
  40                         max_preference = max(max_preference, tt->get_autofit_preference());
  41                 }
  42 }
  43
  44 ExtendTool::~ExtendTool()
  45 {
  46         if(!accepted)
  47         {
  48                 for(vector<R2C2::Track *>::iterator i=extend_tracks.begin(); i!=extend_tracks.end(); ++i)
  49                         delete *i;
  50         }
  51 }
  52
  53 void ExtendTool::connect()
  54 {
  55         float limit = designer.get_layout().get_catalogue().get_gauge()/10;
  56
  57         Track *start_track = 0;
  58         Track *end_track = 0;
  59         Snap start_sn;
  60         bool ok = false;
  61         float gap = 0;
  62         for(vector<TrackIter>::const_iterator i=unlinked_endpoints.begin(); i!=unlinked_endpoints.end(); ++i)
  63         {
  64                 start_sn = (*i)->get_snap_node(i->entry());
  65
  66                 for(vector<TrackIter>::const_iterator j=i; ++j!=unlinked_endpoints.end(); )
  67                 {
  68                         Snap end_sn = (*j)->get_snap_node(j->entry());
  69
  70                         float dz = end_sn.position.z-start_sn.position.z;
  71                         if(abs(dz)>0.02)
  72                                 continue;
  73
  74                         Angle adiff = wrap_balanced(start_sn.rotation+Angle::half_turn()-end_sn.rotation);
  75                         if(abs(adiff).radians()>0.01)
  76                                 continue;
  77
  78                         Vector delta = rotated_vector(end_sn.position-start_sn.position, -start_sn.rotation);
  79                         if(abs(delta.y)>limit)
  80                                 continue;
  81
  82                         gap = delta.x;
  83                         if(gap<0)
  84                                 continue;
  85
  86                         ok = true;
  87                 }
  88
  89                 if(ok)
  90                         break;
  91         }
  92
  93         if(!ok)
  94         {
  95                 set_status("No aligned endpoints found");
  96                 set_done(false);
  97                 return;
  98         }
  99
 100         extend_tracks = create_straight(start_sn.position, start_sn.rotation, gap, limit);
 101
 102         if(extend_tracks.empty())
 103         {
 104                 set_status("No connection possible");
 105                 set_done(false);
 106                 return;
 107         }
 108
 109         extend_tracks.front()->link_to(*start_track);
 110         extend_tracks.back()->link_to(*end_track);
 111
 112         set_done(true);
 113 }
 114
 115 void ExtendTool::pointer_motion()
 116 {
 117         Vector pos;
 118         Angle dir;
 119         float length = 0;
 120
 121         for(vector<TrackIter>::const_iterator i=unlinked_endpoints.begin(); i!=unlinked_endpoints.end(); ++i)
 122         {
 123                 Snap sn = (*i)->get_snap_node(i->entry());
 124                 Vector delta = rotated_vector(ground_pointer-sn.position, -sn.rotation);
 125
 126                 if(delta.x<length)
 127                         continue;
 128
 129                 pos = sn.position;
 130                 dir = sn.rotation;
 131                 length = delta.x;
 132         }
 133
 134         if(length)
 135         {
 136                 vector<Track *> trks = create_straight(pos, dir, length, max(length/500, 0.001f));
 137
 138                 if(!trks.empty())
 139                 {
 140                         for(vector<Track *>::iterator i=extend_tracks.begin(); i!=extend_tracks.end(); ++i)
 141                                 delete *i;
 142                         extend_tracks = trks;
 143
 144                         map<ArticleNumber, unsigned> counts;
 145                         length = 0;
 146                         for(vector<Track *>::iterator i=extend_tracks.begin(); i!=extend_tracks.end(); ++i)
 147                         {
 148                                 length += (*i)->get_type().get_total_length();
 149                                 ++counts[(*i)->get_type().get_article_number()];
 150                         }
 151
 152                         string detail;
 153                         for(map<ArticleNumber, unsigned>::const_iterator i=counts.begin(); i!=counts.end(); ++i)
 154                         {
 155                                 if(!detail.empty())
 156                                         detail += ", ";
 157                                 detail += format("%dx %s", i->second, i->first);
 158                         }
 159
 160                         signal_status.emit(format("Extend: %.0fmm (%s)", length*1000, detail));
 161                 }
 162         }
 163 }
 164
 165 void ExtendTool::finish()
 166 {
 167         if(!extend_tracks.empty())
 168         {
 169                 for(vector<TrackIter>::const_iterator i=unlinked_endpoints.begin(); i!=unlinked_endpoints.end(); ++i)
 170                         if(extend_tracks.front()->link_to(**i))
 171                                 break;
 172         }
 173 }
 174
 175 vector<Track *> ExtendTool::create_straight(const Vector &start, const Angle &dir, float length, float limit)
 176 {
 177         vector<float> lengths;
 178         unsigned preference = max_preference;
 179         float removed = 0;
 180         while(length>limit)
 181         {
 182                 bool found = false;
 183                 for(map<float, const TrackType *>::iterator i=types_by_length.end(); i!=types_by_length.begin(); )
 184                 {
 185                         --i;
 186                         if(i->second->get_autofit_preference()<preference)
 187                                 continue;
 188                         if((!removed || i->first<removed) && i->first<length+limit)
 189                         {
 190                                 unsigned n = static_cast<unsigned>((length+limit)/i->first);
 191                                 lengths.insert(lengths.end(), n, i->first);
 192                                 length -= n*i->first;
 193                                 found = true;
 194                                 break;
 195                         }
 196                 }
 197
 198                 if(found)
 199                         continue;
 200
 201                 if(lengths.empty())
 202                 {
 203                         if(preference>0)
 204                         {
 205                                 --preference;
 206                                 removed = 0;
 207                                 continue;
 208                         }
 209                         break;
 210                 }
 211
 212                 length += lengths.back();
 213                 removed = lengths.back();
 214                 lengths.pop_back();
 215         }
 216
 217         vector<Track *> trks;
 218
 219         if(!lengths.empty())
 220         {
 221                 Vector pos = start;
 222                 Transform trans = Transform::rotation(dir, Vector(0, 0, 1));
 223                 for(vector<float>::iterator i=lengths.begin(); i!=lengths.end(); ++i)
 224                 {
 225                         Track *track = new Track(designer.get_layout(), *get_item(types_by_length, *i));
 226                         track->set_position(pos);
 227                         track->set_rotation(dir);
 228
 229                         if(!trks.empty())
 230                                 track->link_to(*trks.back());
 231                         trks.push_back(track);
 232
 233                         pos += trans.transform(Vector(*i, 0, 0));
 234                 }
 235         }
 236
 237         return trks;
 238 }
 239
 240 void ExtendTool::update_selection(Selection &sel) const
 241 {
 242         if(accepted)
 243                 sel.replace(extend_tracks.begin(), extend_tracks.end());
 244 }