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