source/libr2c2/zone.cpp

   1 /* $Id$
   2
   3 This file is part of R²C²
   4 Copyright © 2010  Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <msp/strings/formatter.h>
   9 #include "block.h"
  10 #include "layout.h"
  11 #include "track.h"
  12 #include "zone.h"
  13
  14 using namespace std;
  15 using namespace Msp;
  16
  17 namespace R2C2 {
  18
  19 Zone::Zone(Layout &l):
  20         layout(l),
  21         number(0)
  22 {
  23         layout.add_zone(*this);
  24 }
  25
  26 Zone::~Zone()
  27 {
  28         layout.remove_zone(*this);
  29 }
  30
  31 void Zone::set_name(const string &g, const string &q, unsigned n)
  32 {
  33         group = g;
  34         qualifier = q;
  35         number = n;
  36
  37         signal_name_changed.emit(group, qualifier, number);
  38 }
  39
  40 string Zone::get_name() const
  41 {
  42         string result = group;
  43         if(!qualifier.empty())
  44         {
  45                 result += ' ';
  46                 result += qualifier;
  47         }
  48         if(number)
  49                 result += format(" %d", number);
  50         return result;
  51 }
  52
  53 void Zone::add_track(Track &track)
  54 {
  55         if(!is_valid(track))
  56                 throw InvalidParameterValue("Can't add track to zone");
  57
  58         tracks.insert(&track);
  59 }
  60
  61 bool Zone::add_tracks(const TrackSet &trks)
  62 {
  63         TrackSet pending = trks;
  64         bool first = true;
  65         while(1)
  66         {
  67                 bool ok = false;
  68                 for(TrackSet::const_iterator i=pending.begin(); i!=pending.end(); ++i)
  69                         if(is_valid(**i))
  70                         {
  71                                 tracks.insert(*i);
  72                                 pending.erase(i);
  73                                 ok = true;
  74                                 break;
  75                         }
  76
  77                 if(!ok)
  78                 {
  79                         if(first)
  80                                 throw InvalidParameterValue("Cound not add any tracks to zone");
  81                         return pending.empty();
  82                 }
  83
  84                 first = false;
  85         }
  86 }
  87
  88 void Zone::save(list<DataFile::Statement> &st) const
  89 {
  90         st.push_back((DataFile::Statement("group"), group));
  91         if(!qualifier.empty())
  92                 st.push_back((DataFile::Statement("qualifier"), qualifier));
  93         if(number)
  94                 st.push_back((DataFile::Statement("number"), number));
  95
  96         set<unsigned> block_ids;
  97         for(TrackSet::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
  98                 block_ids.insert((*i)->get_block().get_id());
  99
 100         for(set<unsigned>::const_iterator i=block_ids.begin(); i!=block_ids.end(); ++i)
 101                 st.push_back((DataFile::Statement("block"), *i));
 102 }
 103
 104 bool Zone::is_valid(Track &t) const
 105 {
 106         if(tracks.empty())
 107                 return true;
 108
 109         const vector<Track *> &links = t.get_links();
 110         for(vector<Track *>::const_iterator i=links.begin(); i!=links.end(); ++i)
 111                 if(*i && tracks.count(*i))
 112                         return true;
 113
 114         return false;
 115 }
 116
 117
 118 Zone::Loader::Loader(Zone &z):
 119         DataFile::ObjectLoader<Zone>(z)
 120 {
 121         add("block",     &Loader::block);
 122         add("group",     &Zone::group);
 123         add("number",    &Zone::number);
 124         add("qualifier", &Zone::qualifier);
 125 }
 126
 127 void Zone::Loader::block(unsigned b)
 128 {
 129         Block &blk = obj.layout.get_block(b);
 130         const set<Track *> &btracks = blk.get_tracks();
 131         obj.tracks.insert(btracks.begin(), btracks.end());
 132 }
 133
 134 } // namespace R2C2