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         list<TrackType *> track_types = designer.get_catalogue().get_list<TrackType>();
  30         for(list<TrackType *>::iterator i=track_types.begin(); i!=track_types.end(); ++i)
  31         {
  32                 const vector<TrackPart> &parts = (*i)->get_parts();
  33                 if(parts.size()!=1)
  34                         continue;
  35                 if(parts.front().is_curved() || parts.front().is_dead_end())
  36                         continue;
  37
  38                 types_by_length[parts.front().get_length()] = *i;
  39                 max_preference = max(max_preference, (*i)->get_autofit_preference());
  40         }
  41 }
  42
  43 ExtendTool::~ExtendTool()
  44 {
  45         if(!accepted)
  46         {
  47                 for(vector<R2C2::Track *>::iterator i=extend_tracks.begin(); i!=extend_tracks.end(); ++i)
  48                         delete *i;
  49         }
  50 }
  51
  52 void ExtendTool::connect()
  53 {
  54         float limit;
  55
  56         Track *start_track = 0;
  57         Track *end_track = 0;
  58         Snap start_sn;
  59         bool ok = false;
  60         float gap = 0;
  61         for(vector<TrackIter>::const_iterator i=unlinked_endpoints.begin(); i!=unlinked_endpoints.end(); ++i)
  62         {
  63                 start_sn = (*i)->get_snap_node(i->entry());
  64                 limit = (*i)->get_type().get_gauge()/10;
  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                         start_track = i->track();
  87                         end_track = j->track();
  88                         ok = true;
  89                 }
  90
  91                 if(ok)
  92                         break;
  93         }
  94
  95         if(!ok)
  96         {
  97                 set_status("No aligned endpoints found");
  98                 set_done(false);
  99                 return;
 100         }
 101
 102         extend_tracks = create_straight(start_sn.position, start_sn.rotation, gap, limit);
 103
 104         if(extend_tracks.empty())
 105         {
 106                 set_status("No connection possible");
 107                 set_done(false);
 108                 return;
 109         }
 110
 111         extend_tracks.front()->link_to(*start_track);
 112         extend_tracks.back()->link_to(*end_track);
 113
 114         set_done(true);
 115 }
 116
 117 void ExtendTool::pointer_motion()
 118 {
 119         Vector pos;
 120         Angle dir;
 121         float length = 0;
 122
 123         for(vector<TrackIter>::const_iterator i=unlinked_endpoints.begin(); i!=unlinked_endpoints.end(); ++i)
 124         {
 125                 Snap sn = (*i)->get_snap_node(i->entry());
 126                 Vector delta = rotated_vector(ground_pointer-sn.position, -sn.rotation);
 127
 128                 if(delta.x<length)
 129                         continue;
 130
 131                 pos = sn.position;
 132                 dir = sn.rotation;
 133                 length = delta.x;
 134         }
 135
 136         if(length)
 137         {
 138                 vector<Track *> trks = create_straight(pos, dir, length, max(length/500, 0.001f));
 139
 140                 if(!trks.empty())
 141                 {
 142                         for(vector<Track *>::iterator i=extend_tracks.begin(); i!=extend_tracks.end(); ++i)
 143                                 delete *i;
 144                         extend_tracks = trks;
 145
 146                         map<const TrackType *, unsigned> counts;
 147                         length = 0;
 148                         for(vector<Track *>::iterator i=extend_tracks.begin(); i!=extend_tracks.end(); ++i)
 149                         {
 150                                 length += (*i)->get_type().get_total_length();
 151                                 ++counts[&(*i)->get_type()];
 152                         }
 153
 154                         string detail;
 155                         for(map<const TrackType *, unsigned>::const_iterator i=counts.begin(); i!=counts.end(); ++i)
 156                         {
 157                                 if(!detail.empty())
 158                                         detail += ", ";
 159                                 detail += format("%dx %s", i->second, i->first->get_article_number());
 160                         }
 161
 162                         signal_status.emit(format("Extend: %.0fmm (%s)", length*1000, detail));
 163                 }
 164         }
 165 }
 166
 167 void ExtendTool::finish()
 168 {
 169         if(!extend_tracks.empty())
 170         {
 171                 for(vector<TrackIter>::const_iterator i=unlinked_endpoints.begin(); i!=unlinked_endpoints.end(); ++i)
 172                         if(extend_tracks.front()->link_to(**i))
 173                                 break;
 174         }
 175 }
 176
 177 vector<Track *> ExtendTool::create_straight(const Vector &start, const Angle &dir, float length, float limit)
 178 {
 179         vector<float> lengths;
 180         unsigned preference = max_preference;
 181         float removed = 0;
 182         while(length>limit)
 183         {
 184                 bool found = false;
 185                 for(map<float, const TrackType *>::iterator i=types_by_length.end(); i!=types_by_length.begin(); )
 186                 {
 187                         --i;
 188                         if(i->second->get_autofit_preference()<preference)
 189                                 continue;
 190                         if((!removed || i->first<removed) && i->first<length+limit)
 191                         {
 192                                 unsigned n = static_cast<unsigned>((length+limit)/i->first);
 193                                 lengths.insert(lengths.end(), n, i->first);
 194                                 length -= n*i->first;
 195                                 found = true;
 196                                 break;
 197                         }
 198                 }
 199
 200                 if(found)
 201                         continue;
 202
 203                 if(lengths.empty())
 204                 {
 205                         if(preference>0)
 206                         {
 207                                 --preference;
 208                                 removed = 0;
 209                                 continue;
 210                         }
 211                         break;
 212                 }
 213
 214                 length += lengths.back();
 215                 removed = lengths.back();
 216                 lengths.pop_back();
 217         }
 218
 219         vector<Track *> trks;
 220
 221         if(!lengths.empty())
 222         {
 223                 Vector pos = start;
 224                 Transform trans = Transform::rotation(dir, Vector(0, 0, 1));
 225                 for(vector<float>::iterator i=lengths.begin(); i!=lengths.end(); ++i)
 226                 {
 227                         Track *track = new Track(designer.get_layout(), *get_item(types_by_length, *i));
 228                         track->set_position(pos);
 229                         track->set_rotation(dir);
 230
 231                         if(!trks.empty())
 232                                 track->link_to(*trks.back());
 233                         trks.push_back(track);
 234
 235                         pos += trans.transform(Vector(*i, 0, 0));
 236                 }
 237         }
 238
 239         return trks;
 240 }
 241
 242 void ExtendTool::update_selection(Selection &sel) const
 243 {
 244         if(accepted)
 245                 sel.replace(extend_tracks.begin(), extend_tracks.end());
 246 }