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), depth(1)
  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(int newdepth)
  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 (newdepth==depth && 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         depth=newdepth;
  96
  97         toclist = tmp[type];
  98
  99         dialog_->tree->clear();
 100         if (toclist.empty())
 101                 return;
 102
 103         dialog_->tree->setUpdatesEnabled(false);
 104
 105         int curdepth = 0;
 106         stack< pair< QListViewItem *, QListViewItem *> > istack;
 107         QListViewItem *last = 0;
 108         QListViewItem *parent = 0;
 109         QListViewItem *item;
 110
 111         // Yes, it is this ugly. Two reasons - root items must have a QListView parent,
 112         // rather than QListViewItem; and the TOC can move in and out an arbitrary number
 113         // of levels
 114
 115         for (vector< Buffer::TocItem >::const_iterator iter = toclist.begin();
 116                 iter != toclist.end(); ++iter) {
 117                 if (iter->depth == curdepth) {
 118                         // insert it after the last one we processed
 119                         if (!parent)
 120                                 item = (last) ? (new QListViewItem(dialog_->tree,last)) : (new QListViewItem(dialog_->tree));
 121                         else
 122                                 item = (last) ? (new QListViewItem(parent,last)) : (new QListViewItem(parent));
 123                 } else if (iter->depth > curdepth) {
 124                         int diff = iter->depth - curdepth;
 125                         // first save old parent and last
 126                         while (diff--)
 127                                 istack.push(pair< QListViewItem *, QListViewItem * >(parent,last));
 128                         item = (last) ? (new QListViewItem(last)) : (new QListViewItem(dialog_->tree));
 129                         parent = last;
 130                 } else {
 131                         int diff = curdepth - iter->depth;
 132                         pair< QListViewItem *, QListViewItem * > top;
 133                         // restore context
 134                         while (diff--) {
 135                                 top = istack.top();
 136                                 istack.pop();
 137                         }
 138                         parent = top.first;
 139                         last = top.second;
 140                         // insert it after the last one we processed
 141                         if (!parent)
 142                                 item = (last) ? (new QListViewItem(dialog_->tree,last)) : (new QListViewItem(dialog_->tree));
 143                         else
 144                                 item = (last) ? (new QListViewItem(parent,last)) : (new QListViewItem(parent));
 145                 }
 146                 lyxerr[Debug::GUI] << "Table of contents" << endl << "Added item " << iter->str.c_str()
 147                         << " at depth " << iter->depth << ", previous sibling \"" << (last ? last->text(0) : "0")
 148                         << "\", parent \"" << (parent ? parent->text(0) : "0") << "\"" << endl;
 149                 item->setText(0,iter->str.c_str());
 150                 item->setOpen(iter->depth < depth);
 151                 curdepth = iter->depth;
 152                 last = item;
 153         }
 154
 155         dialog_->tree->setUpdatesEnabled(true);
 156         dialog_->tree->update();
 157 }
 158
 159 void FormToc::setType(Buffer::TocType toctype)
 160 {
 161         type = toctype;
 162         switch (type) {
 163                 case Buffer::TOC_TOC:
 164                         dialog_->setCaption(_("Table of Contents"));
 165                         dialog_->tree->setColumnText(0,_("Table of Contents"));
 166                         dialog_->depth->setEnabled(true);
 167                         break;
 168                 case Buffer::TOC_LOF:
 169                         dialog_->setCaption(_("List of Figures"));
 170                         dialog_->tree->setColumnText(0,_("List of Figures"));
 171                         dialog_->depth->setEnabled(false);
 172                         break;
 173                 case Buffer::TOC_LOT:
 174                         dialog_->setCaption(_("List of Tables"));
 175                         dialog_->tree->setColumnText(0,_("List of Tables"));
 176                         dialog_->depth->setEnabled(false);
 177                         break;
 178                 case Buffer::TOC_LOA:
 179                         dialog_->setCaption(_("List of Algorithms"));
 180                         dialog_->tree->setColumnText(0,_("List of Algorithms"));
 181                         dialog_->depth->setEnabled(false);
 182                         break;
 183         }
 184 }
 185
 186 void FormToc::set_depth(int newdepth)
 187 {
 188         if (newdepth!=depth)
 189                 updateToc(newdepth);
 190 }
 191
 192 void FormToc::update()
 193 {
 194         if (params.getCmdName()=="tableofcontents") {
 195                 setType(Buffer::TOC_TOC);
 196                 dialog_->menu->setCurrentItem(0);
 197         } else if (params.getCmdName()=="listoffigures") {
 198                 setType(Buffer::TOC_LOF);
 199                 dialog_->menu->setCurrentItem(1);
 200         } else if (params.getCmdName()=="listoftables") {
 201                 setType(Buffer::TOC_LOT);
 202                 dialog_->menu->setCurrentItem(2);
 203         } else {
 204                 setType(Buffer::TOC_LOA);
 205                 dialog_->menu->setCurrentItem(3);
 206         }
 207
 208         updateToc(depth);
 209 }
 210
 211 void FormToc::select(const char *text)
 212 {
 213         if (!lv_->view()->available())
 214                 return;
 215
 216         vector <Buffer::TocItem>::const_iterator iter = toclist.begin();
 217         for (; iter != toclist.end(); ++iter) {
 218                 if (iter->str==text)
 219                         break;
 220         }
 221
 222         if (iter==toclist.end()) {
 223                 lyxerr[Debug::GUI] << "Couldn't find highlighted TOC entry : " << text << endl;
 224                 return;
 225         }
 226
 227         lv_->getLyXFunc()->Dispatch(LFUN_GOTO_PARAGRAPH, tostr(iter->par->id()).c_str());
 228 }
 229
 230 void FormToc::set_type(Buffer::TocType toctype)
 231 {
 232         if (toctype==type)
 233                 return;
 234
 235         setType(toctype);
 236         updateToc(depth);
 237 }
 238
 239 void FormToc::show()
 240 {
 241         if (!dialog_)
 242                 dialog_ = new FormTocDialog(this, 0, _("LyX: Table of Contents"), false);
 243
 244         if (!dialog_->isVisible()) {
 245                 h_ = d_->hideBufferDependent.connect(slot(this, &FormToc::hide));
 246                 u_ = d_->updateBufferDependent.connect(slot(this, &FormToc::update));
 247         }
 248
 249         dialog_->raise();
 250         dialog_->setActiveWindow();
 251
 252         update();
 253         dialog_->show();
 254 }
 255
 256 void FormToc::close()
 257 {
 258         h_.disconnect();
 259         u_.disconnect();
 260         ih_.disconnect();
 261         inset_ = 0;
 262 }
 263
 264 void FormToc::hide()
 265 {
 266         dialog_->hide();
 267         close();
 268 }