src/frontends/qt4/TocModel.C

   1 /**
   2  * \file QTocDialog.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  * \author Abdelrazak Younes
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "TocModel.h"
  15
  16 #include "debug.h"
  17
  18 #include <vector>
  19 #include <string>
  20
  21 using std::endl;
  22 using std::pair;
  23 using std::map;
  24 using std::vector;
  25 using std::string;
  26 using std::make_pair;
  27
  28 namespace lyx {
  29 namespace frontend {
  30
  31
  32 TocModel::TocModel(Toc const & toc)
  33 {
  34         populate(toc);
  35 }
  36
  37
  38 TocModel const & TocModel::operator=(Toc const & toc)
  39 {
  40         populate(toc);
  41         return *this;
  42 }
  43
  44
  45 TocIterator const TocModel::tocIterator(QModelIndex const & index) const
  46 {
  47         TocMap::const_iterator map_it = toc_map_.find(index);
  48         BOOST_ASSERT(map_it != toc_map_.end());
  49         return map_it->second;
  50 }
  51
  52
  53 QModelIndex const TocModel::modelIndex(TocIterator const & it) const
  54 {
  55         ModelMap::const_iterator map_it = model_map_.find(it);
  56         //BOOST_ASSERT(it != model_map_.end());
  57
  58         if (map_it == model_map_.end())
  59                 return QModelIndex();
  60
  61         return map_it->second;
  62 }
  63
  64
  65 void TocModel::clear()
  66 {
  67         QStandardItemModel::clear();
  68         toc_map_.clear();
  69         model_map_.clear();
  70         removeRows(0, rowCount());
  71         removeColumns(0, columnCount());
  72 }
  73
  74
  75 void TocModel::populate(Toc const & toc)
  76 {
  77         clear();
  78
  79         if (toc.empty())
  80                 return;
  81
  82         int current_row;
  83         QModelIndex top_level_item;
  84
  85         TocIterator iter = toc.begin();
  86         TocIterator end = toc.end();
  87
  88         insertColumns(0, 1);
  89
  90         while (iter != end) {
  91
  92                 if (iter->isValid()) {
  93
  94                         current_row = rowCount();
  95                         insertRows(current_row, 1);
  96                         top_level_item = QStandardItemModel::index(current_row, 0);
  97                         //setData(top_level_item, toqstr(iter->str()));
  98                         setData(top_level_item, toqstr(iter->str()), Qt::DisplayRole);
  99
 100                         // This looks like a gcc bug, in principle this should work:
 101                         //toc_map_[top_level_item] = iter;
 102                         // but it crashes with gcc-4.1 and 4.0.2
 103                         toc_map_.insert( TocPair(top_level_item, iter) );
 104                         model_map_[iter] = top_level_item;
 105
 106                         lyxerr[Debug::GUI]
 107                                 << "Toc: at depth " << iter->depth()
 108                                 << ", added item " << lyx::to_utf8(iter->str())
 109                                 << endl;
 110
 111                         populate(iter, end, top_level_item);
 112                 }
 113
 114                 if (iter == end)
 115                         break;
 116
 117                 ++iter;
 118         }
 119
 120         setHeaderData(0, Qt::Horizontal, QVariant("title"), Qt::DisplayRole);
 121 //      emit headerDataChanged();
 122 }
 123
 124
 125 void TocModel::populate(TocIterator & iter,
 126                                                 TocIterator const & end,
 127                                                 QModelIndex const & parent)
 128 {
 129         int curdepth = iter->depth() + 1;
 130         int current_row;
 131         QModelIndex child_item;
 132
 133         insertColumns(0, 1, parent);
 134         while (iter != end) {
 135
 136                 ++iter;
 137
 138                 if (iter == end)
 139                         break;
 140
 141                 if (iter->depth() < curdepth) {
 142                         --iter;
 143                         return;
 144                 }
 145
 146                 current_row = rowCount(parent);
 147                 insertRows(current_row, 1, parent);
 148                 child_item = QStandardItemModel::index(current_row, 0, parent);
 149                 //setData(child_item, toqstr(iter->str()));
 150                 setData(child_item, toqstr(iter->str()), Qt::DisplayRole);
 151
 152                 // This looks like a gcc bug, in principle this should work:
 153                 //toc_map_[child_item] = iter;
 154                 // but it crashes with gcc-4.1 and 4.0.2
 155                 toc_map_.insert( TocPair(child_item, iter) );
 156                 model_map_[iter] = child_item;
 157                 populate(iter, end, child_item);
 158         }
 159 }
 160
 161
 162 } // namespace frontend
 163 } // namespace lyx
 164
 165 #include "TocModel_moc.cpp"