src/frontends/qt2/QToc.C

   1 /**
   2  * \file QToc.C
   3  * Copyright 2001 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author John Levon <moz@compsoc.man.ac.uk>
   7  */
   8
   9 #include <config.h>
  10
  11 #include <stack>
  12
  13 #include <qslider.h>
  14 #include "QTocDialog.h"
  15 #include "QtLyXView.h"
  16
  17 #include "Dialogs.h"
  18 #include "BufferView.h"
  19 #include "QToc.h"
  20 #include "gettext.h"
  21 #include "buffer.h"
  22 #include "support/lstrings.h"
  23 #include "lyxfunc.h"
  24 #include "debug.h"
  25
  26 #include <qlistview.h>
  27 #include <qcombobox.h>
  28
  29 using std::vector;
  30 using std::pair;
  31 using std::stack;
  32 using std::endl;
  33 using SigC::slot;
  34
  35
  36 QToc::QToc(LyXView *v, Dialogs *d)
  37         : dialog_(0), lv_(v), d_(d), inset_(0), h_(0), u_(0), ih_(0),
  38         /*toclist(0),*/ depth(1)
  39 {
  40         d->showTOC.connect(slot(this, &QToc::showTOC));
  41         d->createTOC.connect(slot(this, &QToc::createTOC));
  42 }
  43
  44
  45 QToc::~QToc()
  46 {
  47         delete dialog_;
  48 }
  49
  50
  51 void QToc::showTOC(InsetCommand * const inset)
  52 {
  53         // FIXME: when could inset be 0 here ?
  54         if (inset == 0)
  55                 return;
  56
  57         inset_ = inset;
  58         //FIXME ih_ = inset_->hide.connect(slot(this,&QToc::hide));
  59         params = inset->params();
  60
  61         show();
  62 }
  63
  64
  65 void QToc::createTOC(string const & arg)
  66 {
  67         if (inset_)
  68                 close();
  69
  70         params.setFromString(arg);
  71         show();
  72 }
  73
  74
  75 void QToc::updateToc(int newdepth)
  76 {
  77         if (!lv_->view()->available()) {
  78                 //toclist.clear();
  79                 dialog_->tocLV->clear();
  80                 return;
  81         }
  82
  83 #if 0
  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_->tocLV->clear();
 103         if (toclist.empty())
 104                 return;
 105
 106         dialog_->tocLV->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_->tocLV,last)) : (new QListViewItem(dialog_->tocLV));
 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_->tocLV));
 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_->tocLV,last)) : (new QListViewItem(dialog_->tocLV));
 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).latin1() : "0")
 151                         << "\", parent \"" << (parent ? parent->text(0).latin1() : "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_->tocLV->setUpdatesEnabled(true);
 159         dialog_->tocLV->update();
 160 }
 161
 162
 163 void QToc::setType(Buffer::TocType toctype)
 164 {
 165         type = toctype;
 166         switch (type) {
 167                 case Buffer::TOC_TOC:
 168                         dialog_->setCaption(_("Table of Contents"));
 169                         dialog_->tocLV->setColumnText(0,_("Table of Contents"));
 170                         dialog_->depthSL->setEnabled(true);
 171                         break;
 172                 case Buffer::TOC_LOF:
 173                         dialog_->setCaption(_("List of Figures"));
 174                         dialog_->tocLV->setColumnText(0,_("List of Figures"));
 175                         dialog_->depthSL->setEnabled(false);
 176                         break;
 177                 case Buffer::TOC_LOT:
 178                         dialog_->setCaption(_("List of Tables"));
 179                         dialog_->tocLV->setColumnText(0,_("List of Tables"));
 180                         dialog_->depthSL->setEnabled(false);
 181                         break;
 182                 case Buffer::TOC_LOA:
 183                         dialog_->setCaption(_("List of Algorithms"));
 184                         dialog_->tocLV->setColumnText(0,_("List of Algorithms"));
 185                         dialog_->depthSL->setEnabled(false);
 186                         break;
 187         }
 188 }
 189
 190
 191 void QToc::set_depth(int newdepth)
 192 {
 193         if (newdepth!=depth)
 194                 updateToc(newdepth);
 195 #endif
 196 }
 197
 198
 199 void QToc::update()
 200 {
 201 #if 0
 202         if (params.getCmdName()=="tableofcontents") {
 203                 setType(Buffer::TOC_TOC);
 204                 dialog_->typeCO->setCurrentItem(0);
 205         } else if (params.getCmdName()=="listoffigures") {
 206                 setType(Buffer::TOC_LOF);
 207                 dialog_->typeCO->setCurrentItem(1);
 208         } else if (params.getCmdName()=="listoftables") {
 209                 setType(Buffer::TOC_LOT);
 210                 dialog_->typeCO->setCurrentItem(2);
 211         } else {
 212                 setType(Buffer::TOC_LOA);
 213                 dialog_->typeCO->setCurrentItem(3);
 214         }
 215
 216         updateToc(depth);
 217 }
 218
 219
 220 void QToc::select(const char *text)
 221 {
 222         if (!lv_->view()->available())
 223                 return;
 224
 225         vector <Buffer::TocItem>::const_iterator iter = toclist.begin();
 226         for (; iter != toclist.end(); ++iter) {
 227                 if (iter->str==text)
 228                         break;
 229         }
 230
 231         if (iter==toclist.end()) {
 232                 lyxerr[Debug::GUI] << "Couldn't find highlighted TOC entry : " << text << endl;
 233                 return;
 234         }
 235
 236         lv_->getLyXFunc()->Dispatch(LFUN_GOTO_PARAGRAPH, tostr(iter->par->id()).c_str());
 237 }
 238
 239
 240 void QToc::set_type(Buffer::TocType toctype)
 241 {
 242         if (toctype==type)
 243                 return;
 244
 245         setType(toctype);
 246         updateToc(depth);
 247 #endif
 248 }
 249
 250
 251 void QToc::show()
 252 {
 253         if (!dialog_)
 254                 dialog_ = new QTocDialog(this, 0, _("LyX: Table of Contents"), false);
 255
 256         if (!dialog_->isVisible()) {
 257                 h_ = d_->hideBufferDependent.connect(slot(this, &QToc::hide));
 258                 //u_ = d_->updateBufferDependent.connect(slot(this, &QToc::update));
 259         }
 260
 261         dialog_->raise();
 262         dialog_->setActiveWindow();
 263
 264         update();
 265         dialog_->show();
 266 }
 267
 268
 269 void QToc::close()
 270 {
 271         h_.disconnect();
 272         u_.disconnect();
 273         ih_.disconnect();
 274         inset_ = 0;
 275 }
 276
 277
 278 void QToc::hide()
 279 {
 280         dialog_->hide();
 281         close();
 282 }