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