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1 /**
2  * \file InsetText.cpp
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Jürgen Vigna
7  *
8  * Full author contact details are available in file CREDITS.
9  */
10
11 #include <config.h>
12
13 #include "InsetText.h"
14
15 #include "insets/InsetArgument.h"
16 #include "insets/InsetLayout.h"
17
18 #include "buffer_funcs.h"
19 #include "Buffer.h"
20 #include "BufferParams.h"
21 #include "BufferView.h"
22 #include "CompletionList.h"
23 #include "CoordCache.h"
24 #include "Cursor.h"
25 #include "CutAndPaste.h"
26 #include "DispatchResult.h"
27 #include "ErrorList.h"
28 #include "FuncRequest.h"
29 #include "FuncStatus.h"
30 #include "InsetCaption.h"
31 #include "InsetList.h"
32 #include "Intl.h"
33 #include "Language.h"
34 #include "Layout.h"
35 #include "LaTeXFeatures.h"
36 #include "Lexer.h"
37 #include "lyxfind.h"
38 #include "LyXRC.h"
39 #include "MetricsInfo.h"
40 #include "output_docbook.h"
41 #include "output_latex.h"
42 #include "output_xhtml.h"
43 #include "OutputParams.h"
44 #include "output_plaintext.h"
45 #include "Paragraph.h"
46 #include "ParagraphParameters.h"
47 #include "ParIterator.h"
48 #include "Row.h"
49 #include "sgml.h"
50 #include "TexRow.h"
51 #include "TextClass.h"
52 #include "Text.h"
53 #include "TextMetrics.h"
54 #include "TocBackend.h"
55
56 #include "frontends/alert.h"
57 #include "frontends/Painter.h"
58
59 #include "support/convert.h"
60 #include "support/debug.h"
61 #include "support/gettext.h"
62 #include "support/lstrings.h"
63
64 #include "support/bind.h"
65 #include "support/lassert.h"
66
67 #include <algorithm>
68
69
70 using namespace std;
71 using namespace lyx::support;
72
73
74 namespace lyx {
75
76 using graphics::PreviewLoader;
77
78
79 /////////////////////////////////////////////////////////////////////
80
81 InsetText::InsetText(Buffer * buf, UsePlain type)
82         : Inset(buf), drawFrame_(false), frame_color_(Color_insetframe),
83         text_(this, type == DefaultLayout)
84 {
85 }
86
87
88 InsetText::InsetText(InsetText const & in)
89         : Inset(in), text_(this, in.text_)
90 {
91         drawFrame_ = in.drawFrame_;
92         frame_color_ = in.frame_color_;
93 }
94
95
96 void InsetText::setBuffer(Buffer & buf)
97 {
98         ParagraphList::iterator end = paragraphs().end();
99         for (ParagraphList::iterator it = paragraphs().begin(); it != end; ++it)
100                 it->setBuffer(buf);
101         Inset::setBuffer(buf);
102 }
103
104
105 void InsetText::setMacrocontextPositionRecursive(DocIterator const & pos)
106 {
107         text_.setMacrocontextPosition(pos);
108
109         ParagraphList::const_iterator pit = paragraphs().begin();
110         ParagraphList::const_iterator pend = paragraphs().end();
111         for (; pit != pend; ++pit) {
112                 InsetList::const_iterator iit = pit->insetList().begin();
113                 InsetList::const_iterator end = pit->insetList().end();
114                 for (; iit != end; ++iit) {
115                         if (InsetText * txt = iit->inset->asInsetText()) {
116                                 DocIterator ppos(pos);
117                                 ppos.push_back(CursorSlice(*txt));
118                                 iit->inset->asInsetText()->setMacrocontextPositionRecursive(ppos);
119                         }
120                 }
121         }
122 }
123
124
125 void InsetText::clear()
126 {
127         ParagraphList & pars = paragraphs();
128         LASSERT(!pars.empty(), /**/);
129
130         // This is a gross hack...
131         Layout const & old_layout = pars.begin()->layout();
132
133         pars.clear();
134         pars.push_back(Paragraph());
135         pars.begin()->setInsetOwner(this);
136         pars.begin()->setLayout(old_layout);
137 }
138
139
140 Dimension const InsetText::dimension(BufferView const & bv) const
141 {
142         TextMetrics const & tm = bv.textMetrics(&text_);
143         Dimension dim = tm.dimension();
144         dim.wid += 2 * TEXT_TO_INSET_OFFSET;
145         dim.des += TEXT_TO_INSET_OFFSET;
146         dim.asc += TEXT_TO_INSET_OFFSET;
147         return dim;
148 }
149
150
151 void InsetText::write(ostream & os) const
152 {
153         os << "Text\n";
154         text_.write(os);
155 }
156
157
158 void InsetText::read(Lexer & lex)
159 {
160         clear();
161
162         // delete the initial paragraph
163         Paragraph oldpar = *paragraphs().begin();
164         paragraphs().clear();
165         ErrorList errorList;
166         lex.setContext("InsetText::read");
167         bool res = text_.read(lex, errorList, this);
168
169         if (!res)
170                 lex.printError("Missing \\end_inset at this point. ");
171
172         // sanity check
173         // ensure we have at least one paragraph.
174         if (paragraphs().empty())
175                 paragraphs().push_back(oldpar);
176         // Force default font, if so requested
177         // This avoids paragraphs in buffer language that would have a
178         // foreign language after a document language change, and it ensures
179         // that all new text in ERT and similar gets the "latex" language,
180         // since new text inherits the language from the last position of the
181         // existing text.  As a side effect this makes us also robust against
182         // bugs in LyX that might lead to font changes in ERT in .lyx files.
183         fixParagraphsFont();
184 }
185
186
187 void InsetText::metrics(MetricsInfo & mi, Dimension & dim) const
188 {
189         TextMetrics & tm = mi.base.bv->textMetrics(&text_);
190
191         //lyxerr << "InsetText::metrics: width: " << mi.base.textwidth << endl;
192
193         // Hand font through to contained lyxtext:
194         tm.font_.fontInfo() = mi.base.font;
195         mi.base.textwidth -= 2 * TEXT_TO_INSET_OFFSET;
196
197         // This can happen when a layout has a left and right margin,
198         // and the view is made very narrow. We can't do better than 
199         // to draw it partly out of view (bug 5890).
200         if (mi.base.textwidth < 1)
201                 mi.base.textwidth = 1;
202
203         if (hasFixedWidth())
204                 tm.metrics(mi, dim, mi.base.textwidth);
205         else
206                 tm.metrics(mi, dim);
207         mi.base.textwidth += 2 * TEXT_TO_INSET_OFFSET;
208         dim.asc += TEXT_TO_INSET_OFFSET;
209         dim.des += TEXT_TO_INSET_OFFSET;
210         dim.wid += 2 * TEXT_TO_INSET_OFFSET;
211 }
212
213
214 void InsetText::draw(PainterInfo & pi, int x, int y) const
215 {
216         TextMetrics & tm = pi.base.bv->textMetrics(&text_);
217
218         if (drawFrame_ || pi.full_repaint) {
219                 int const w = tm.width() + TEXT_TO_INSET_OFFSET;
220                 int const yframe = y - TEXT_TO_INSET_OFFSET - tm.ascent();
221                 int const h = tm.height() + 2 * TEXT_TO_INSET_OFFSET;
222                 int const xframe = x + TEXT_TO_INSET_OFFSET / 2;
223                 if (pi.full_repaint)
224                         pi.pain.fillRectangle(xframe, yframe, w, h,
225                                 pi.backgroundColor(this));
226
227                 if (drawFrame_)
228                         pi.pain.rectangle(xframe, yframe, w, h, frameColor());
229         }
230         ColorCode const old_color = pi.background_color;
231         pi.background_color = pi.backgroundColor(this, false);
232
233         tm.draw(pi, x + TEXT_TO_INSET_OFFSET, y);
234
235         pi.background_color = old_color;
236 }
237
238
239 void InsetText::edit(Cursor & cur, bool front, EntryDirection entry_from)
240 {
241         pit_type const pit = front ? 0 : paragraphs().size() - 1;
242         pos_type pos = front ? 0 : paragraphs().back().size();
243
244         // if visual information is not to be ignored, move to extreme right/left
245         if (entry_from != ENTRY_DIRECTION_IGNORE) {
246                 Cursor temp_cur = cur;
247                 temp_cur.pit() = pit;
248                 temp_cur.pos() = pos;
249                 temp_cur.posVisToRowExtremity(entry_from == ENTRY_DIRECTION_LEFT);
250                 pos = temp_cur.pos();
251         }
252
253         text_.setCursor(cur.top(), pit, pos);
254         cur.clearSelection();
255         cur.finishUndo();
256 }
257
258
259 Inset * InsetText::editXY(Cursor & cur, int x, int y)
260 {
261         return cur.bv().textMetrics(&text_).editXY(cur, x, y);
262 }
263
264
265 void InsetText::doDispatch(Cursor & cur, FuncRequest & cmd)
266 {
267         LYXERR(Debug::ACTION, "InsetText::doDispatch(): cmd: " << cmd);
268
269 #if 0
270 // FIXME: This code does not seem to be necessary anymore
271 // Remove for 2.1 if no counter-evidence is found.
272         if (isPassThru() && lyxCode() != ARG_CODE) {
273                 // Force any new text to latex_language FIXME: This
274                 // should only be necessary in constructor, but new
275                 // paragraphs that are created by pressing enter at
276                 // the start of an existing paragraph get the buffer
277                 // language and not latex_language, so we take this
278                 // brute force approach.
279                 cur.current_font.setLanguage(latex_language);
280                 cur.real_current_font.setLanguage(latex_language);
281         }
282 #endif
283
284         switch (cmd.action()) {
285         case LFUN_PASTE:
286         case LFUN_CLIPBOARD_PASTE:
287         case LFUN_SELECTION_PASTE:
288         case LFUN_PRIMARY_SELECTION_PASTE:
289                 text_.dispatch(cur, cmd);
290                 // If we we can only store plain text, we must reset all
291                 // attributes.
292                 // FIXME: Change only the pasted paragraphs
293                 fixParagraphsFont();
294                 break;
295
296         case LFUN_INSET_DISSOLVE: {
297                 bool const main_inset = &buffer().inset() == this;
298                 bool const target_inset = cmd.argument().empty() 
299                         || cmd.getArg(0) == insetName(lyxCode());
300                 bool const one_cell = nargs() == 1;
301
302                 if (!main_inset && target_inset && one_cell) {
303                         // Text::dissolveInset assumes that the cursor
304                         // is inside the Inset.
305                         if (&cur.inset() != this)
306                                 cur.pushBackward(*this);
307                         cur.beginUndoGroup();
308                         text_.dispatch(cur, cmd);
309                         cur.endUndoGroup();
310                 } else
311                         cur.undispatched();
312                 break;
313         }
314
315         default:
316                 text_.dispatch(cur, cmd);
317         }
318         
319         if (!cur.result().dispatched())
320                 Inset::doDispatch(cur, cmd);
321 }
322
323
324 bool InsetText::getStatus(Cursor & cur, FuncRequest const & cmd,
325         FuncStatus & status) const
326 {
327         switch (cmd.action()) {
328         case LFUN_INSET_DISSOLVE: {
329                 bool const main_inset = &buffer().inset() == this;
330                 bool const target_inset = cmd.argument().empty() 
331                         || cmd.getArg(0) == insetName(lyxCode());
332                 bool const one_cell = nargs() == 1;
333
334                 if (target_inset)
335                         status.setEnabled(!main_inset && one_cell);
336                 return target_inset;
337         }
338
339         case LFUN_ARGUMENT_INSERT: {
340                 string const arg = cmd.getArg(0);
341                 if (arg.empty()) {
342                         status.setEnabled(false);
343                         return true;
344                 }
345                 if (&buffer().inset() == this || !cur.paragraph().layout().args().empty())
346                         return text_.getStatus(cur, cmd, status);
347
348                 Layout::LaTeXArgMap args = getLayout().latexargs();
349                 Layout::LaTeXArgMap::const_iterator const lait = args.find(arg);
350                 if (lait != args.end()) {
351                         status.setEnabled(true);
352                         ParagraphList::const_iterator pit = paragraphs().begin();
353                         for (; pit != paragraphs().end(); ++pit) {
354                                 InsetList::const_iterator it = pit->insetList().begin();
355                                 InsetList::const_iterator end = pit->insetList().end();
356                                 for (; it != end; ++it) {
357                                         if (it->inset->lyxCode() == ARG_CODE) {
358                                                 InsetArgument const * ins =
359                                                         static_cast<InsetArgument const *>(it->inset);
360                                                 if (ins->name() == arg) {
361                                                         // we have this already
362                                                         status.setEnabled(false);
363                                                         return true;
364                                                 }
365                                         }
366                                 }
367                         }
368                 } else
369                         status.setEnabled(false);
370                 return true;
371         }
372
373         default:
374                 // Dispatch only to text_ if the cursor is inside
375                 // the text_. It is not for context menus (bug 5797).
376                 bool ret = false;
377                 if (cur.text() == &text_)
378                         ret = text_.getStatus(cur, cmd, status);
379                 
380                 if (!ret)
381                         ret = Inset::getStatus(cur, cmd, status);
382                 return ret;
383         }
384 }
385
386
387 void InsetText::fixParagraphsFont()
388 {
389         Font font(inherit_font, buffer().params().language);
390         font.setLanguage(latex_language);
391         ParagraphList::iterator par = paragraphs().begin();
392         ParagraphList::iterator const end = paragraphs().end();
393         while (par != end) {
394                 if (par->isPassThru())
395                         par->resetFonts(font);
396                 if (!par->allowParagraphCustomization())
397                         par->params().clear();
398                 ++par;
399         }
400 }
401
402
403 void InsetText::setChange(Change const & change)
404 {
405         ParagraphList::iterator pit = paragraphs().begin();
406         ParagraphList::iterator end = paragraphs().end();
407         for (; pit != end; ++pit) {
408                 pit->setChange(change);
409         }
410 }
411
412
413 void InsetText::acceptChanges()
414 {
415         text_.acceptChanges();
416 }
417
418
419 void InsetText::rejectChanges()
420 {
421         text_.rejectChanges();
422 }
423
424
425 void InsetText::validate(LaTeXFeatures & features) const
426 {
427         features.useInsetLayout(getLayout());
428         for_each(paragraphs().begin(), paragraphs().end(),
429                  bind(&Paragraph::validate, _1, ref(features)));
430 }
431
432
433 void InsetText::latex(otexstream & os, OutputParams const & runparams) const
434 {
435         // This implements the standard way of handling the LaTeX
436         // output of a text inset, either a command or an
437         // environment. Standard collapsable insets should not
438         // redefine this, non-standard ones may call this.
439         InsetLayout const & il = getLayout();
440         if (!il.latexname().empty()) {
441                 if (il.latextype() == InsetLayout::COMMAND) {
442                         // FIXME UNICODE
443                         if (runparams.moving_arg)
444                                 os << "\\protect";
445                         os << '\\' << from_utf8(il.latexname());
446                         if (!il.latexargs().empty())
447                                 getOptArg(os, runparams);
448                         if (!il.latexparam().empty())
449                                 os << from_utf8(il.latexparam());
450                         os << '{';
451                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
452                         if (il.isDisplay())
453                                 os << breakln;
454                         else
455                                 os << safebreakln;
456                         if (runparams.lastid != -1)
457                                 os.texrow().start(runparams.lastid,
458                                                   runparams.lastpos);
459                         os << "\\begin{" << from_utf8(il.latexname()) << "}";
460                         if (!il.latexargs().empty())
461                                 getOptArg(os, runparams);
462                         if (!il.latexparam().empty())
463                                 os << from_utf8(il.latexparam());
464                         os << '\n';
465                 }
466         } else {
467                 if (!il.latexargs().empty())
468                         getOptArg(os, runparams);
469                 if (!il.latexparam().empty())
470                         os << from_utf8(il.latexparam());
471         }
472
473         if (!il.leftdelim().empty())
474                 os << il.leftdelim();
475
476         OutputParams rp = runparams;
477         if (isPassThru())
478                 rp.pass_thru = true;
479         if (il.isNeedProtect())
480                 rp.moving_arg = true;
481         rp.par_begin = 0;
482         rp.par_end = paragraphs().size();
483
484         // Output the contents of the inset
485         latexParagraphs(buffer(), text_, os, rp);
486         runparams.encoding = rp.encoding;
487
488         if (!il.rightdelim().empty())
489                 os << il.rightdelim();
490
491         if (!il.latexname().empty()) {
492                 if (il.latextype() == InsetLayout::COMMAND) {
493                         os << "}";
494                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
495                         // A comment environment doesn't need a % before \n\end
496                         if (il.isDisplay() || runparams.inComment)
497                             os << breakln;
498                         else
499                             os << safebreakln;
500                         os << "\\end{" << from_utf8(il.latexname()) << "}\n";
501                         if (!il.isDisplay())
502                                 os.protectSpace(true);
503                 }
504         }
505 }
506
507
508 int InsetText::plaintext(odocstream & os, OutputParams const & runparams) const
509 {
510         ParagraphList::const_iterator beg = paragraphs().begin();
511         ParagraphList::const_iterator end = paragraphs().end();
512         ParagraphList::const_iterator it = beg;
513         bool ref_printed = false;
514         int len = 0;
515         for (; it != end; ++it) {
516                 if (it != beg) {
517                         os << '\n';
518                         if (runparams.linelen > 0)
519                                 os << '\n';
520                 }
521                 odocstringstream oss;
522                 writePlaintextParagraph(buffer(), *it, oss, runparams, ref_printed);
523                 docstring const str = oss.str();
524                 os << str;
525                 // FIXME: len is not computed fully correctly; in principle,
526                 // we have to count the characters after the last '\n'
527                 len = str.size();
528         }
529
530         return len;
531 }
532
533
534 int InsetText::docbook(odocstream & os, OutputParams const & runparams) const
535 {
536         ParagraphList::const_iterator const beg = paragraphs().begin();
537
538         if (!undefined())
539                 sgml::openTag(os, getLayout().latexname(),
540                               beg->getID(buffer(), runparams) + getLayout().latexparam());
541
542         docbookParagraphs(text_, buffer(), os, runparams);
543
544         if (!undefined())
545                 sgml::closeTag(os, getLayout().latexname());
546
547         return 0;
548 }
549
550
551 docstring InsetText::xhtml(XHTMLStream & xs, OutputParams const & runparams) const
552 {
553         return insetAsXHTML(xs, runparams, WriteEverything);
554 }
555
556
557 // FIXME XHTML
558 // There are cases where we may need to close open fonts and such
559 // and then re-open them when we are done. This would be the case, e.g.,
560 // if we were otherwise about to write:
561 //              <em>word <div class='foot'>footnote text.</div> emph</em>
562 // The problem isn't so much that the footnote text will get emphasized:
563 // we can handle that with CSS. The problem is that this is invalid XHTML.
564 // One solution would be to make the footnote <span>, but the problem is
565 // completely general, and so we'd have to make absolutely everything into
566 // span. What I think will work is to check if we're about to write "div" and,
567 // if so, try to close fonts, etc. 
568 // There are probably limits to how well we can do here, though, and we will
569 // have to rely upon users not putting footnotes inside noun-type insets.
570 docstring InsetText::insetAsXHTML(XHTMLStream & xs, OutputParams const & rp,
571                                   XHTMLOptions opts) const
572 {
573         // we will always want to output all our paragraphs when we are
574         // called this way.
575         OutputParams runparams = rp;
576         runparams.par_begin = 0;
577         runparams.par_end = text().paragraphs().size();
578         
579         if (undefined()) {
580                 xhtmlParagraphs(text_, buffer(), xs, runparams);
581                 return docstring();
582         }
583
584         InsetLayout const & il = getLayout();
585         if (opts & WriteOuterTag)
586                 xs << html::StartTag(il.htmltag(), il.htmlattr());
587
588         if ((opts & WriteLabel) && !il.counter().empty()) {
589                 BufferParams const & bp = buffer().masterBuffer()->params();
590                 Counters & cntrs = bp.documentClass().counters();
591                 cntrs.step(il.counter(), OutputUpdate);
592                 // FIXME: translate to paragraph language
593                 if (!il.htmllabel().empty()) {
594                         docstring const lbl = 
595                                 cntrs.counterLabel(from_utf8(il.htmllabel()), bp.language->code());
596                         // FIXME is this check necessary?
597                         if (!lbl.empty()) {
598                                 xs << html::StartTag(il.htmllabeltag(), il.htmllabelattr());
599                                 xs << lbl;
600                                 xs << html::EndTag(il.htmllabeltag());
601                         }
602                 }
603         }
604
605         if (opts & WriteInnerTag)
606                 xs << html::StartTag(il.htmlinnertag(), il.htmlinnerattr());
607
608         // we will eventually lose information about the containing inset
609         if (!il.isMultiPar() || opts == JustText)
610                 runparams.html_make_pars = false;
611         if (il.isPassThru())
612                 runparams.pass_thru = true;
613
614         xhtmlParagraphs(text_, buffer(), xs, runparams);
615
616         if (opts & WriteInnerTag)
617                 xs << html::EndTag(il.htmlinnertag());
618
619         if (opts & WriteOuterTag)
620                 xs << html::EndTag(il.htmltag());
621
622         return docstring();
623 }
624
625 void InsetText::getOptArg(otexstream & os,
626                         OutputParams const & runparams_in) const
627 {
628         OutputParams runparams = runparams_in;
629         runparams.local_font =
630                 &paragraphs()[0].getFirstFontSettings(buffer().masterBuffer()->params());
631         if (isPassThru())
632                 runparams.pass_thru = true;
633         latexArgInsets(paragraphs(), paragraphs().begin(), os, runparams, getLayout().latexargs());
634 }
635
636
637 void InsetText::cursorPos(BufferView const & bv,
638                 CursorSlice const & sl, bool boundary, int & x, int & y) const
639 {
640         x = bv.textMetrics(&text_).cursorX(sl, boundary) + TEXT_TO_INSET_OFFSET;
641         y = bv.textMetrics(&text_).cursorY(sl, boundary);
642 }
643
644
645 void InsetText::setText(docstring const & data, Font const & font, bool trackChanges)
646 {
647         clear();
648         Paragraph & first = paragraphs().front();
649         for (unsigned int i = 0; i < data.length(); ++i)
650                 first.insertChar(i, data[i], font, trackChanges);
651 }
652
653
654 void InsetText::setAutoBreakRows(bool flag)
655 {
656         if (flag == text_.autoBreakRows_)
657                 return;
658
659         text_.autoBreakRows_ = flag;
660         if (flag)
661                 return;
662
663         // remove previously existing newlines
664         ParagraphList::iterator it = paragraphs().begin();
665         ParagraphList::iterator end = paragraphs().end();
666         for (; it != end; ++it)
667                 for (int i = 0; i < it->size(); ++i)
668                         if (it->isNewline(i))
669                                 // do not track the change, because the user
670                                 // is not allowed to revert/reject it
671                                 it->eraseChar(i, false);
672 }
673
674
675 void InsetText::setDrawFrame(bool flag)
676 {
677         drawFrame_ = flag;
678 }
679
680
681 ColorCode InsetText::frameColor() const
682 {
683         return frame_color_;
684 }
685
686
687 void InsetText::setFrameColor(ColorCode col)
688 {
689         frame_color_ = col;
690 }
691
692
693 void InsetText::appendParagraphs(ParagraphList & plist)
694 {
695         // There is little we can do here to keep track of changes.
696         // As of 2006/10/20, appendParagraphs is used exclusively by
697         // LyXTabular::setMultiColumn. In this context, the paragraph break
698         // is lost irreversibly and the appended text doesn't really change
699
700         ParagraphList & pl = paragraphs();
701
702         ParagraphList::iterator pit = plist.begin();
703         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
704         ++pit;
705         mergeParagraph(buffer().params(), pl,
706                        distance(pl.begin(), ins) - 1);
707
708         for_each(pit, plist.end(),
709                  bind(&ParagraphList::push_back, ref(pl), _1));
710 }
711
712
713 void InsetText::addPreview(DocIterator const & text_inset_pos,
714         PreviewLoader & loader) const
715 {
716         ParagraphList::const_iterator pit = paragraphs().begin();
717         ParagraphList::const_iterator pend = paragraphs().end();
718         int pidx = 0;
719
720         DocIterator inset_pos = text_inset_pos;
721         inset_pos.push_back(CursorSlice(*const_cast<InsetText *>(this)));
722
723         for (; pit != pend; ++pit, ++pidx) {
724                 InsetList::const_iterator it  = pit->insetList().begin();
725                 InsetList::const_iterator end = pit->insetList().end();
726                 inset_pos.pit() = pidx;
727                 for (; it != end; ++it) {
728                         inset_pos.pos() = it->pos;
729                         it->inset->addPreview(inset_pos, loader);
730                 }
731         }
732 }
733
734
735 ParagraphList const & InsetText::paragraphs() const
736 {
737         return text_.paragraphs();
738 }
739
740
741 ParagraphList & InsetText::paragraphs()
742 {
743         return text_.paragraphs();
744 }
745
746
747 bool InsetText::insetAllowed(InsetCode code) const
748 {
749         switch (code) {
750         // Arguments are also allowed in PassThru insets
751         case ARG_CODE:
752                 return true;
753         default:
754                 return !isPassThru();
755         }
756 }
757
758
759 void InsetText::updateBuffer(ParIterator const & it, UpdateType utype)
760 {
761         ParIterator it2 = it;
762         it2.forwardPos();
763         LASSERT(&it2.inset() == this && it2.pit() == 0, return);
764         if (producesOutput()) {
765                 InsetLayout const & il = getLayout();
766                 bool const save_layouts = utype == OutputUpdate && il.htmlisblock();
767                 Counters & cnt = buffer().masterBuffer()->params().documentClass().counters();
768                 if (save_layouts) {
769                         // LYXERR0("Entering " << name());
770                         cnt.clearLastLayout();
771                         // FIXME cnt.saveLastCounter()?
772                 }
773                 buffer().updateBuffer(it2, utype);
774                 if (save_layouts) {
775                         // LYXERR0("Exiting " << name());
776                         cnt.restoreLastLayout();
777                         // FIXME cnt.restoreLastCounter()?
778                 }
779         } else {
780                 DocumentClass const & tclass = buffer().masterBuffer()->params().documentClass();
781                 // Note that we do not need to call:
782                 //      tclass.counters().clearLastLayout()
783                 // since we are saving and restoring the existing counters, etc.
784                 Counters const savecnt = tclass.counters();
785                 tclass.counters().reset();
786                 buffer().updateBuffer(it2, utype);
787                 tclass.counters() = savecnt;
788         }
789 }
790
791
792 void InsetText::toString(odocstream & os) const
793 {
794         os << text().asString(0, 1, AS_STR_LABEL | AS_STR_INSETS);
795 }
796
797
798 void InsetText::forToc(docstring & os, size_t maxlen) const
799 {
800         if (!getLayout().isInToc())
801                 return;
802         text().forToc(os, maxlen, false);
803 }
804
805
806 void InsetText::addToToc(DocIterator const & cdit) const
807 {
808         DocIterator dit = cdit;
809         dit.push_back(CursorSlice(const_cast<InsetText &>(*this)));
810         Toc & toc = buffer().tocBackend().toc("tableofcontents");
811
812         BufferParams const & bufparams = buffer_->params();
813         int const min_toclevel = bufparams.documentClass().min_toclevel();
814
815         // For each paragraph, traverse its insets and let them add
816         // their toc items
817         ParagraphList const & pars = paragraphs();
818         pit_type pend = paragraphs().size();
819         for (pit_type pit = 0; pit != pend; ++pit) {
820                 Paragraph const & par = pars[pit];
821                 dit.pit() = pit;
822                 // if we find an optarg, we'll save it for use later.
823                 InsetText const * arginset = 0;
824                 InsetList::const_iterator it  = par.insetList().begin();
825                 InsetList::const_iterator end = par.insetList().end();
826                 for (; it != end; ++it) {
827                         Inset & inset = *it->inset;
828                         dit.pos() = it->pos;
829                         //lyxerr << (void*)&inset << " code: " << inset.lyxCode() << std::endl;
830                         inset.addToToc(dit);
831                         if (inset.lyxCode() == ARG_CODE)
832                                 arginset = inset.asInsetText();
833                 }
834                 // now the toc entry for the paragraph
835                 int const toclevel = text().getTocLevel(pit);
836                 if (toclevel != Layout::NOT_IN_TOC && toclevel >= min_toclevel) {
837                         // insert this into the table of contents
838                         docstring tocstring;
839                         if (arginset) {
840                                 tocstring = par.labelString();
841                                 if (!tocstring.empty())
842                                         tocstring += ' ';
843                                 arginset->text().forToc(tocstring, TOC_ENTRY_LENGTH);
844                         } else
845                                 par.forToc(tocstring, TOC_ENTRY_LENGTH);
846                         dit.pos() = 0;
847                         toc.push_back(TocItem(dit, toclevel - min_toclevel,
848                                 tocstring, tocstring));
849                 }
850                 
851                 // And now the list of changes.
852                 par.addChangesToToc(dit, buffer());
853         }
854 }
855
856
857 bool InsetText::notifyCursorLeaves(Cursor const & old, Cursor & cur)
858 {
859         if (buffer().isClean())
860                 return Inset::notifyCursorLeaves(old, cur);
861         
862         // find text inset in old cursor
863         Cursor insetCur = old;
864         int scriptSlice = insetCur.find(this);
865         LASSERT(scriptSlice != -1, /**/);
866         insetCur.cutOff(scriptSlice);
867         LASSERT(&insetCur.inset() == this, /**/);
868         
869         // update the old paragraph's words
870         insetCur.paragraph().updateWords();
871         
872         return Inset::notifyCursorLeaves(old, cur);
873 }
874
875
876 bool InsetText::completionSupported(Cursor const & cur) const
877 {
878         //LASSERT(&cur.bv().cursor().inset() != this, return false);
879         return text_.completionSupported(cur);
880 }
881
882
883 bool InsetText::inlineCompletionSupported(Cursor const & cur) const
884 {
885         return completionSupported(cur);
886 }
887
888
889 bool InsetText::automaticInlineCompletion() const
890 {
891         return lyxrc.completion_inline_text;
892 }
893
894
895 bool InsetText::automaticPopupCompletion() const
896 {
897         return lyxrc.completion_popup_text;
898 }
899
900
901 bool InsetText::showCompletionCursor() const
902 {
903         return lyxrc.completion_cursor_text;
904 }
905
906
907 CompletionList const * InsetText::createCompletionList(Cursor const & cur) const
908 {
909         return completionSupported(cur) ? text_.createCompletionList(cur) : 0;
910 }
911
912
913 docstring InsetText::completionPrefix(Cursor const & cur) const
914 {
915         if (!completionSupported(cur))
916                 return docstring();
917         return text_.completionPrefix(cur);
918 }
919
920
921 bool InsetText::insertCompletion(Cursor & cur, docstring const & s,
922         bool finished)
923 {
924         if (!completionSupported(cur))
925                 return false;
926
927         return text_.insertCompletion(cur, s, finished);
928 }
929
930
931 void InsetText::completionPosAndDim(Cursor const & cur, int & x, int & y, 
932         Dimension & dim) const
933 {
934         TextMetrics const & tm = cur.bv().textMetrics(&text_);
935         tm.completionPosAndDim(cur, x, y, dim);
936 }
937
938
939 string InsetText::contextMenu(BufferView const &, int, int) const
940 {
941         string context_menu = contextMenuName();
942         if (context_menu != InsetText::contextMenuName())
943                 context_menu += ";" + InsetText::contextMenuName(); 
944         return context_menu;
945 }
946
947
948 string InsetText::contextMenuName() const
949 {
950         return "context-edit";
951 }
952
953
954 docstring InsetText::toolTipText(docstring prefix,
955                 size_t numlines, size_t len) const
956 {
957         size_t const max_length = numlines * len;
958         OutputParams rp(&buffer().params().encoding());
959         odocstringstream oss;
960         oss << prefix;
961
962         ParagraphList::const_iterator beg = paragraphs().begin();
963         ParagraphList::const_iterator end = paragraphs().end();
964         ParagraphList::const_iterator it = beg;
965         bool ref_printed = false;
966         docstring str;
967
968         for (; it != end; ++it) {
969                 if (it != beg)
970                         oss << '\n';
971                 writePlaintextParagraph(buffer(), *it, oss, rp, ref_printed);
972                 str = oss.str();
973                 if (str.length() > max_length)
974                         break;
975         }
976         return support::wrapParas(str, 4, len, numlines);
977 }
978
979
980 InsetCaption const * InsetText::getCaptionInset() const
981 {
982         ParagraphList::const_iterator pit = paragraphs().begin();
983         for (; pit != paragraphs().end(); ++pit) {
984                 InsetList::const_iterator it = pit->insetList().begin();
985                 for (; it != pit->insetList().end(); ++it) {
986                         Inset & inset = *it->inset;
987                         if (inset.lyxCode() == CAPTION_CODE) {
988                                 InsetCaption const * ins =
989                                         static_cast<InsetCaption const *>(it->inset);
990                                 return ins;
991                         }
992                 }
993         }
994         return 0;
995 }
996
997
998 docstring InsetText::getCaptionText(OutputParams const & runparams) const
999 {
1000         InsetCaption const * ins = getCaptionInset();
1001         if (ins == 0)
1002                 return docstring();
1003
1004         odocstringstream ods;
1005         ins->getCaptionAsPlaintext(ods, runparams);
1006         return ods.str();
1007 }
1008
1009
1010 docstring InsetText::getCaptionHTML(OutputParams const & runparams) const
1011 {
1012         InsetCaption const * ins = getCaptionInset();
1013         if (ins == 0)
1014                 return docstring();
1015
1016         odocstringstream ods;
1017         XHTMLStream xs(ods);
1018         docstring def = ins->getCaptionAsHTML(xs, runparams);
1019         if (!def.empty())
1020                 // should already have been escaped
1021                 xs << XHTMLStream::ESCAPE_NONE << def << '\n';
1022         return ods.str();
1023 }
1024
1025
1026 InsetText::XHTMLOptions operator|(InsetText::XHTMLOptions a1, InsetText::XHTMLOptions a2)
1027 {
1028         return static_cast<InsetText::XHTMLOptions>((int)a1 | (int)a2);
1029 }
1030
1031 } // namespace lyx