src/frontends/kde/FormToc.C

   1 /**
   2  * \file FormToc.C
   3  * Copyright 2001 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author John Levon
   7  */
   8
   9 #include <config.h>
  10
  11 #include <stack>
  12
  13 #include "tocdlg.h"
  14
  15 #include "Dialogs.h"
  16 #include "FormToc.h"
  17 #include "gettext.h"
  18 #include "buffer.h"
  19 #include "support/lstrings.h"
  20 #include "QtLyXView.h"
  21 #include "lyxfunc.h"
  22 #include "debug.h"
  23
  24 using std::vector;
  25 using std::pair;
  26 using std::stack;
  27 using std::endl;
  28
  29 // FIXME: we should be able to move sections around like klyx1 can
  30
  31 FormToc::FormToc(LyXView *v, Dialogs *d)
  32         : dialog_(0), lv_(v), d_(d), inset_(0), h_(0), u_(0), ih_(0),
  33         toclist(0), type(Buffer::TOC_TOC), depth(1)
  34 {
  35         // let the dialog be shown
  36         // This is a permanent connection so we won't bother
  37         // storing a copy because we won't be disconnecting.
  38         d->showTOC.connect(slot(this, &FormToc::showTOC));
  39         d->createTOC.connect(slot(this, &FormToc::createTOC));
  40 }
  41
  42
  43 FormToc::~FormToc()
  44 {
  45         delete dialog_;
  46 }
  47
  48
  49 void FormToc::showTOC(InsetCommand * const inset)
  50 {
  51         // FIXME: when could inset be 0 here ?
  52         if (inset == 0)
  53                 return;
  54
  55         inset_ = inset;
  56         ih_ = inset_->hide.connect(slot(this,&FormToc::hide));
  57         params = inset->params();
  58
  59         show();
  60 }
  61
  62
  63 void FormToc::createTOC(string const & arg)
  64 {
  65         if (inset_)
  66                 close();
  67
  68         params.setFromString(arg);
  69         show();
  70 }
  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
 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
 188 void FormToc::set_depth(int newdepth)
 189 {
 190         if (newdepth != depth)
 191                 updateToc(newdepth);
 192 }
 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
 216 void FormToc::select(char const * text)
 217 {
 218         if (!lv_->view()->available())
 219                 return;
 220
 221         vector <Buffer::TocItem>::const_iterator iter = toclist.begin();
 222         for (; iter != toclist.end(); ++iter) {
 223                 if (iter->str == text)
 224                         break;
 225         }
 226
 227         if (iter == toclist.end()) {
 228                 lyxerr[Debug::GUI] << "Couldn't find highlighted TOC entry : " << text << endl;
 229                 return;
 230         }
 231
 232         lv_->getLyXFunc()->Dispatch(LFUN_GOTO_PARAGRAPH, tostr(iter->par->id()).c_str());
 233 }
 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
 246 void FormToc::show()
 247 {
 248         if (!dialog_)
 249                 dialog_ = new TocDialog(this, 0, _("LyX: Table of Contents"), false);
 250
 251         if (!dialog_->isVisible()) {
 252                 h_ = d_->hideBufferDependent.connect(slot(this, &FormToc::hide));
 253                 u_ = d_->updateBufferDependent.connect(slot(this, &FormToc::update));
 254         }
 255
 256         dialog_->raise();
 257         dialog_->setActiveWindow();
 258
 259         update();
 260         dialog_->show();
 261 }
 262
 263
 264 void FormToc::close()
 265 {
 266         h_.disconnect();
 267         u_.disconnect();
 268         ih_.disconnect();
 269         inset_ = 0;
 270 }
 271
 272
 273 void FormToc::hide()
 274 {
 275         dialog_->hide();
 276         close();
 277 }