src/frontends/qt2/FormToc.C

   1 /*
   2  * FormToc.C
   3  * (C) 2000 LyX Team
   4  * John Levon, moz@compsoc.man.ac.uk
   5  */
   6
   7 /***************************************************************************
   8  *                                                                         *
   9  *   This program is free software; you can redistribute it and/or modify  *
  10  *   it under the terms of the GNU General Public License as published by  *
  11  *   the Free Software Foundation; either version 2 of the License, or     *
  12  *   (at your option) any later version.                                   *
  13  *                                                                         *
  14  ***************************************************************************/
  15
  16 #include <config.h>
  17
  18 #include <stack>
  19
  20 #include <qslider.h>
  21 #include "FormTocDialog.h"
  22 #undef emit
  23
  24 #include "Dialogs.h"
  25 #include "FormToc.h"
  26 #include "gettext.h"
  27 #include "buffer.h"
  28 #include "support/lstrings.h"
  29 #include "QtLyXView.h"
  30 #include "lyxfunc.h"
  31 #include "debug.h"
  32
  33 using std::vector;
  34 using std::pair;
  35 using std::stack;
  36 using std::endl;
  37
  38 #include <qlistview.h>
  39 #include <qcombobox.h>
  40
  41 FormToc::FormToc(LyXView *v, Dialogs *d)
  42         : dialog_(0), lv_(v), d_(d), inset_(0), h_(0), u_(0), ih_(0),
  43         toclist(0), type(Buffer::TOC_TOC), depth(1)
  44 {
  45         // let the dialog be shown
  46         // This is a permanent connection so we won't bother
  47         // storing a copy because we won't be disconnecting.
  48         d->showTOC.connect(slot(this, &FormToc::showTOC));
  49         d->createTOC.connect(slot(this, &FormToc::createTOC));
  50 }
  51
  52 FormToc::~FormToc()
  53 {
  54         delete dialog_;
  55 }
  56
  57 void FormToc::showTOC(InsetCommand * const inset)
  58 {
  59         // FIXME: when could inset be 0 here ?
  60         if (inset==0)
  61                 return;
  62
  63         inset_ = inset;
  64         ih_ = inset_->hide.connect(slot(this,&FormToc::hide));
  65         params = inset->params();
  66
  67         show();
  68 }
  69
  70 void FormToc::createTOC(string const & arg)
  71 {
  72         if (inset_)
  73                 close();
  74
  75         params.setFromString(arg);
  76         show();
  77 }
  78
  79 void FormToc::updateToc(int newdepth)
  80 {
  81         if (!lv_->view()->available()) {
  82                 toclist.clear();
  83                 dialog_->tocLV->clear();
  84                 return;
  85         }
  86
  87         vector< vector<Buffer::TocItem> > tmp =
  88                 lv_->view()->buffer()->getTocList();
  89
  90         // Check if all elements are the same.
  91         if (newdepth==depth && toclist.size() == tmp[type].size()) {
  92                 unsigned int i = 0;
  93                 for (; i < toclist.size(); ++i) {
  94                         if (toclist[i] !=  tmp[type][i])
  95                                 break;
  96                 }
  97                 if (i >= toclist.size())
  98                         return;
  99         }
 100
 101         depth=newdepth;
 102
 103         toclist = tmp[type];
 104
 105         dialog_->tocLV->clear();
 106         if (toclist.empty())
 107                 return;
 108
 109         dialog_->tocLV->setUpdatesEnabled(false);
 110
 111         int curdepth = 0;
 112         stack< pair< QListViewItem *, QListViewItem *> > istack;
 113         QListViewItem *last = 0;
 114         QListViewItem *parent = 0;
 115         QListViewItem *item;
 116
 117         // Yes, it is this ugly. Two reasons - root items must have a QListView parent,
 118         // rather than QListViewItem; and the TOC can move in and out an arbitrary number
 119         // of levels
 120
 121         for (vector< Buffer::TocItem >::const_iterator iter = toclist.begin();
 122                 iter != toclist.end(); ++iter) {
 123                 if (iter->depth == curdepth) {
 124                         // insert it after the last one we processed
 125                         if (!parent)
 126                                 item = (last) ? (new QListViewItem(dialog_->tocLV,last)) : (new QListViewItem(dialog_->tocLV));
 127                         else
 128                                 item = (last) ? (new QListViewItem(parent,last)) : (new QListViewItem(parent));
 129                 } else if (iter->depth > curdepth) {
 130                         int diff = iter->depth - curdepth;
 131                         // first save old parent and last
 132                         while (diff--)
 133                                 istack.push(pair< QListViewItem *, QListViewItem * >(parent,last));
 134                         item = (last) ? (new QListViewItem(last)) : (new QListViewItem(dialog_->tocLV));
 135                         parent = last;
 136                 } else {
 137                         int diff = curdepth - iter->depth;
 138                         pair< QListViewItem *, QListViewItem * > top;
 139                         // restore context
 140                         while (diff--) {
 141                                 top = istack.top();
 142                                 istack.pop();
 143                         }
 144                         parent = top.first;
 145                         last = top.second;
 146                         // insert it after the last one we processed
 147                         if (!parent)
 148                                 item = (last) ? (new QListViewItem(dialog_->tocLV,last)) : (new QListViewItem(dialog_->tocLV));
 149                         else
 150                                 item = (last) ? (new QListViewItem(parent,last)) : (new QListViewItem(parent));
 151                 }
 152                 lyxerr[Debug::GUI] << "Table of contents" << endl << "Added item " << iter->str.c_str()
 153                         << " at depth " << iter->depth << ", previous sibling \"" << (last ? last->text(0).latin1() : "0")
 154                         << "\", parent \"" << (parent ? parent->text(0).latin1() : "0") << "\"" << endl;
 155                 item->setText(0,iter->str.c_str());
 156                 item->setOpen(iter->depth < depth);
 157                 curdepth = iter->depth;
 158                 last = item;
 159         }
 160
 161         dialog_->tocLV->setUpdatesEnabled(true);
 162         dialog_->tocLV->update();
 163 }
 164
 165 void FormToc::setType(Buffer::TocType toctype)
 166 {
 167         type = toctype;
 168         switch (type) {
 169                 case Buffer::TOC_TOC:
 170                         dialog_->setCaption(_("Table of Contents"));
 171                         dialog_->tocLV->setColumnText(0,_("Table of Contents"));
 172                         dialog_->depthSL->setEnabled(true);
 173                         break;
 174                 case Buffer::TOC_LOF:
 175                         dialog_->setCaption(_("List of Figures"));
 176                         dialog_->tocLV->setColumnText(0,_("List of Figures"));
 177                         dialog_->depthSL->setEnabled(false);
 178                         break;
 179                 case Buffer::TOC_LOT:
 180                         dialog_->setCaption(_("List of Tables"));
 181                         dialog_->tocLV->setColumnText(0,_("List of Tables"));
 182                         dialog_->depthSL->setEnabled(false);
 183                         break;
 184                 case Buffer::TOC_LOA:
 185                         dialog_->setCaption(_("List of Algorithms"));
 186                         dialog_->tocLV->setColumnText(0,_("List of Algorithms"));
 187                         dialog_->depthSL->setEnabled(false);
 188                         break;
 189         }
 190 }
 191
 192 void FormToc::set_depth(int newdepth)
 193 {
 194         if (newdepth!=depth)
 195                 updateToc(newdepth);
 196 }
 197
 198 void FormToc::update()
 199 {
 200         if (params.getCmdName()=="tableofcontents") {
 201                 setType(Buffer::TOC_TOC);
 202                 dialog_->typeCO->setCurrentItem(0);
 203         } else if (params.getCmdName()=="listoffigures") {
 204                 setType(Buffer::TOC_LOF);
 205                 dialog_->typeCO->setCurrentItem(1);
 206         } else if (params.getCmdName()=="listoftables") {
 207                 setType(Buffer::TOC_LOT);
 208                 dialog_->typeCO->setCurrentItem(2);
 209         } else {
 210                 setType(Buffer::TOC_LOA);
 211                 dialog_->typeCO->setCurrentItem(3);
 212         }
 213
 214         updateToc(depth);
 215 }
 216
 217 void FormToc::select(const char *text)
 218 {
 219         if (!lv_->view()->available())
 220                 return;
 221
 222         vector <Buffer::TocItem>::const_iterator iter = toclist.begin();
 223         for (; iter != toclist.end(); ++iter) {
 224                 if (iter->str==text)
 225                         break;
 226         }
 227
 228         if (iter==toclist.end()) {
 229                 lyxerr[Debug::GUI] << "Couldn't find highlighted TOC entry : " << text << endl;
 230                 return;
 231         }
 232
 233         lv_->getLyXFunc()->Dispatch(LFUN_GOTO_PARAGRAPH, tostr(iter->par->id()).c_str());
 234 }
 235
 236 void FormToc::set_type(Buffer::TocType toctype)
 237 {
 238         if (toctype==type)
 239                 return;
 240
 241         setType(toctype);
 242         updateToc(depth);
 243 }
 244
 245 void FormToc::show()
 246 {
 247         if (!dialog_)
 248                 dialog_ = new FormTocDialog(this, 0, _("LyX: Table of Contents"), false);
 249
 250         if (!dialog_->isVisible()) {
 251                 h_ = d_->hideBufferDependent.connect(slot(this, &FormToc::hide));
 252                 u_ = d_->updateBufferDependent.connect(slot(this, &FormToc::update));
 253         }
 254
 255         dialog_->raise();
 256         dialog_->setActiveWindow();
 257
 258         update();
 259         dialog_->show();
 260 }
 261
 262 void FormToc::close()
 263 {
 264         h_.disconnect();
 265         u_.disconnect();
 266         ih_.disconnect();
 267         inset_ = 0;
 268 }
 269
 270 void FormToc::hide()
 271 {
 272         dialog_->hide();
 273         close();
 274 }