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