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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         LBUFERR(!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.finishUndo();
255 }
256
257
258 Inset * InsetText::editXY(Cursor & cur, int x, int y)
259 {
260         return cur.bv().textMetrics(&text_).editXY(cur, x, y);
261 }
262
263
264 void InsetText::doDispatch(Cursor & cur, FuncRequest & cmd)
265 {
266         LYXERR(Debug::ACTION, "InsetText::doDispatch(): cmd: " << cmd);
267
268         // See bug #9042, for instance.
269         if (isPassThru() && lyxCode() != ARG_CODE) {
270                 // Force any new text to latex_language FIXME: This
271                 // should only be necessary in constructor, but new
272                 // paragraphs that are created by pressing enter at
273                 // the start of an existing paragraph get the buffer
274                 // language and not latex_language, so we take this
275                 // brute force approach.
276                 cur.current_font.setLanguage(latex_language);
277                 cur.real_current_font.setLanguage(latex_language);
278         }
279
280         switch (cmd.action()) {
281         case LFUN_PASTE:
282         case LFUN_CLIPBOARD_PASTE:
283         case LFUN_SELECTION_PASTE:
284         case LFUN_PRIMARY_SELECTION_PASTE:
285                 text_.dispatch(cur, cmd);
286                 // If we we can only store plain text, we must reset all
287                 // attributes.
288                 // FIXME: Change only the pasted paragraphs
289                 fixParagraphsFont();
290                 break;
291
292         case LFUN_INSET_DISSOLVE: {
293                 bool const main_inset = &buffer().inset() == this;
294                 bool const target_inset = cmd.argument().empty() 
295                         || cmd.getArg(0) == insetName(lyxCode());
296                 bool const one_cell = nargs() == 1;
297
298                 if (!main_inset && target_inset && one_cell) {
299                         // Text::dissolveInset assumes that the cursor
300                         // is inside the Inset.
301                         if (&cur.inset() != this)
302                                 cur.pushBackward(*this);
303                         cur.beginUndoGroup();
304                         text_.dispatch(cur, cmd);
305                         cur.endUndoGroup();
306                 } else
307                         cur.undispatched();
308                 break;
309         }
310
311         default:
312                 text_.dispatch(cur, cmd);
313         }
314         
315         if (!cur.result().dispatched())
316                 Inset::doDispatch(cur, cmd);
317 }
318
319
320 bool InsetText::getStatus(Cursor & cur, FuncRequest const & cmd,
321         FuncStatus & status) const
322 {
323         switch (cmd.action()) {
324         case LFUN_INSET_DISSOLVE: {
325                 bool const main_inset = &buffer().inset() == this;
326                 bool const target_inset = cmd.argument().empty() 
327                         || cmd.getArg(0) == insetName(lyxCode());
328                 bool const one_cell = nargs() == 1;
329
330                 if (target_inset)
331                         status.setEnabled(!main_inset && one_cell);
332                 return target_inset;
333         }
334
335         case LFUN_ARGUMENT_INSERT: {
336                 string const arg = cmd.getArg(0);
337                 if (arg.empty()) {
338                         status.setEnabled(false);
339                         return true;
340                 }
341                 if (&buffer().inset() == this || !cur.paragraph().layout().args().empty())
342                         return text_.getStatus(cur, cmd, status);
343
344                 Layout::LaTeXArgMap args = getLayout().args();
345                 Layout::LaTeXArgMap::const_iterator const lait = args.find(arg);
346                 if (lait != args.end()) {
347                         status.setEnabled(true);
348                         ParagraphList::const_iterator pit = paragraphs().begin();
349                         for (; pit != paragraphs().end(); ++pit) {
350                                 InsetList::const_iterator it = pit->insetList().begin();
351                                 InsetList::const_iterator end = pit->insetList().end();
352                                 for (; it != end; ++it) {
353                                         if (it->inset->lyxCode() == ARG_CODE) {
354                                                 InsetArgument const * ins =
355                                                         static_cast<InsetArgument const *>(it->inset);
356                                                 if (ins->name() == arg) {
357                                                         // we have this already
358                                                         status.setEnabled(false);
359                                                         return true;
360                                                 }
361                                         }
362                                 }
363                         }
364                 } else
365                         status.setEnabled(false);
366                 return true;
367         }
368
369         default:
370                 // Dispatch only to text_ if the cursor is inside
371                 // the text_. It is not for context menus (bug 5797).
372                 bool ret = false;
373                 if (cur.text() == &text_)
374                         ret = text_.getStatus(cur, cmd, status);
375                 
376                 if (!ret)
377                         ret = Inset::getStatus(cur, cmd, status);
378                 return ret;
379         }
380 }
381
382
383 void InsetText::fixParagraphsFont()
384 {
385         Font font(inherit_font, buffer().params().language);
386         font.setLanguage(latex_language);
387         ParagraphList::iterator par = paragraphs().begin();
388         ParagraphList::iterator const end = paragraphs().end();
389         while (par != end) {
390                 if (par->isPassThru())
391                         par->resetFonts(font);
392                 if (!par->allowParagraphCustomization())
393                         par->params().clear();
394                 ++par;
395         }
396 }
397
398
399 void InsetText::setChange(Change const & change)
400 {
401         ParagraphList::iterator pit = paragraphs().begin();
402         ParagraphList::iterator end = paragraphs().end();
403         for (; pit != end; ++pit) {
404                 pit->setChange(change);
405         }
406 }
407
408
409 void InsetText::acceptChanges()
410 {
411         text_.acceptChanges();
412 }
413
414
415 void InsetText::rejectChanges()
416 {
417         text_.rejectChanges();
418 }
419
420
421 void InsetText::validate(LaTeXFeatures & features) const
422 {
423         features.useInsetLayout(getLayout());
424         for_each(paragraphs().begin(), paragraphs().end(),
425                  bind(&Paragraph::validate, _1, ref(features)));
426 }
427
428
429 void InsetText::latex(otexstream & os, OutputParams const & runparams) const
430 {
431         // This implements the standard way of handling the LaTeX
432         // output of a text inset, either a command or an
433         // environment. Standard collapsable insets should not
434         // redefine this, non-standard ones may call this.
435         InsetLayout const & il = getLayout();
436         if (il.forceOwnlines())
437                 os << breakln;
438         if (!il.latexname().empty()) {
439                 if (il.latextype() == InsetLayout::COMMAND) {
440                         // FIXME UNICODE
441                         // FIXME \protect should only be used for fragile
442                         //    commands, but we do not provide this information yet.
443                         if (runparams.moving_arg)
444                                 os << "\\protect";
445                         os << '\\' << from_utf8(il.latexname());
446                         if (!il.latexargs().empty())
447                                 getArgs(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                                 getArgs(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                         getArgs(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         if (!il.passThruChars().empty())
482                 rp.pass_thru_chars += il.passThruChars();
483         rp.par_begin = 0;
484         rp.par_end = paragraphs().size();
485
486         // Output the contents of the inset
487         latexParagraphs(buffer(), text_, os, rp);
488         runparams.encoding = rp.encoding;
489
490         if (!il.rightdelim().empty())
491                 os << il.rightdelim();
492
493         if (!il.latexname().empty()) {
494                 if (il.latextype() == InsetLayout::COMMAND) {
495                         os << "}";
496                         if (!il.postcommandargs().empty())
497                                 getArgs(os, runparams, true);
498                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
499                         // A comment environment doesn't need a % before \n\end
500                         if (il.isDisplay() || runparams.inComment)
501                                 os << breakln;
502                         else
503                                 os << safebreakln;
504                         os << "\\end{" << from_utf8(il.latexname()) << "}" << breakln;
505                         if (!il.isDisplay())
506                                 os.protectSpace(true);
507                 }
508         }
509         if (il.forceOwnlines())
510                 os << breakln;
511 }
512
513
514 int InsetText::plaintext(odocstringstream & os,
515         OutputParams const & runparams, size_t max_length) const
516 {
517         ParagraphList::const_iterator beg = paragraphs().begin();
518         ParagraphList::const_iterator end = paragraphs().end();
519         ParagraphList::const_iterator it = beg;
520         bool ref_printed = false;
521         int len = 0;
522         for (; it != end; ++it) {
523                 if (it != beg) {
524                         os << '\n';
525                         if (runparams.linelen > 0)
526                                 os << '\n';
527                 }
528                 odocstringstream oss;
529                 writePlaintextParagraph(buffer(), *it, oss, runparams, ref_printed, max_length);
530                 docstring const str = oss.str();
531                 os << str;
532                 // FIXME: len is not computed fully correctly; in principle,
533                 // we have to count the characters after the last '\n'
534                 len = str.size();
535                 if (os.str().size() >= max_length)
536                         break;
537         }
538
539         return len;
540 }
541
542
543 int InsetText::docbook(odocstream & os, OutputParams const & runparams) const
544 {
545         ParagraphList::const_iterator const beg = paragraphs().begin();
546
547         if (!undefined())
548                 sgml::openTag(os, getLayout().latexname(),
549                               beg->getID(buffer(), runparams) + getLayout().latexparam());
550
551         docbookParagraphs(text_, buffer(), os, runparams);
552
553         if (!undefined())
554                 sgml::closeTag(os, getLayout().latexname());
555
556         return 0;
557 }
558
559
560 docstring InsetText::xhtml(XHTMLStream & xs, OutputParams const & runparams) const
561 {
562         return insetAsXHTML(xs, runparams, WriteEverything);
563 }
564
565
566 // FIXME XHTML
567 // There are cases where we may need to close open fonts and such
568 // and then re-open them when we are done. This would be the case, e.g.,
569 // if we were otherwise about to write:
570 //              <em>word <div class='foot'>footnote text.</div> emph</em>
571 // The problem isn't so much that the footnote text will get emphasized:
572 // we can handle that with CSS. The problem is that this is invalid XHTML.
573 // One solution would be to make the footnote <span>, but the problem is
574 // completely general, and so we'd have to make absolutely everything into
575 // span. What I think will work is to check if we're about to write "div" and,
576 // if so, try to close fonts, etc. 
577 // There are probably limits to how well we can do here, though, and we will
578 // have to rely upon users not putting footnotes inside noun-type insets.
579 docstring InsetText::insetAsXHTML(XHTMLStream & xs, OutputParams const & rp,
580                                   XHTMLOptions opts) const
581 {
582         // we will always want to output all our paragraphs when we are
583         // called this way.
584         OutputParams runparams = rp;
585         runparams.par_begin = 0;
586         runparams.par_end = text().paragraphs().size();
587         
588         if (undefined()) {
589                 xhtmlParagraphs(text_, buffer(), xs, runparams);
590                 return docstring();
591         }
592
593         InsetLayout const & il = getLayout();
594         if (opts & WriteOuterTag)
595                 xs << html::StartTag(il.htmltag(), il.htmlattr());
596
597         if ((opts & WriteLabel) && !il.counter().empty()) {
598                 BufferParams const & bp = buffer().masterBuffer()->params();
599                 Counters & cntrs = bp.documentClass().counters();
600                 cntrs.step(il.counter(), OutputUpdate);
601                 // FIXME: translate to paragraph language
602                 if (!il.htmllabel().empty()) {
603                         docstring const lbl = 
604                                 cntrs.counterLabel(from_utf8(il.htmllabel()), bp.language->code());
605                         // FIXME is this check necessary?
606                         if (!lbl.empty()) {
607                                 xs << html::StartTag(il.htmllabeltag(), il.htmllabelattr());
608                                 xs << lbl;
609                                 xs << html::EndTag(il.htmllabeltag());
610                         }
611                 }
612         }
613
614         if (opts & WriteInnerTag)
615                 xs << html::StartTag(il.htmlinnertag(), il.htmlinnerattr());
616
617         // we will eventually lose information about the containing inset
618         if (!allowMultiPar() || opts == JustText)
619                 runparams.html_make_pars = false;
620         if (il.isPassThru())
621                 runparams.pass_thru = true;
622
623         xhtmlParagraphs(text_, buffer(), xs, runparams);
624
625         if (opts & WriteInnerTag)
626                 xs << html::EndTag(il.htmlinnertag());
627
628         if (opts & WriteOuterTag)
629                 xs << html::EndTag(il.htmltag());
630
631         return docstring();
632 }
633
634 void InsetText::getArgs(otexstream & os, OutputParams const & runparams_in,
635                         bool const post) const
636 {
637         OutputParams runparams = runparams_in;
638         runparams.local_font =
639                 &paragraphs()[0].getFirstFontSettings(buffer().masterBuffer()->params());
640         if (isPassThru())
641                 runparams.pass_thru = true;
642         if (post)
643                 latexArgInsets(paragraphs(), paragraphs().begin(), os, runparams, getLayout().postcommandargs(), "post:");
644         else
645                 latexArgInsets(paragraphs(), paragraphs().begin(), os, runparams, getLayout().latexargs());
646 }
647
648
649 void InsetText::cursorPos(BufferView const & bv,
650                 CursorSlice const & sl, bool boundary, int & x, int & y) const
651 {
652         x = bv.textMetrics(&text_).cursorX(sl, boundary) + TEXT_TO_INSET_OFFSET;
653         y = bv.textMetrics(&text_).cursorY(sl, boundary);
654 }
655
656
657 void InsetText::setText(docstring const & data, Font const & font, bool trackChanges)
658 {
659         clear();
660         Paragraph & first = paragraphs().front();
661         for (unsigned int i = 0; i < data.length(); ++i)
662                 first.insertChar(i, data[i], font, trackChanges);
663 }
664
665
666 void InsetText::setDrawFrame(bool flag)
667 {
668         drawFrame_ = flag;
669 }
670
671
672 ColorCode InsetText::frameColor() const
673 {
674         return frame_color_;
675 }
676
677
678 void InsetText::setFrameColor(ColorCode col)
679 {
680         frame_color_ = col;
681 }
682
683
684 void InsetText::appendParagraphs(ParagraphList & plist)
685 {
686         // There is little we can do here to keep track of changes.
687         // As of 2006/10/20, appendParagraphs is used exclusively by
688         // LyXTabular::setMultiColumn. In this context, the paragraph break
689         // is lost irreversibly and the appended text doesn't really change
690
691         ParagraphList & pl = paragraphs();
692
693         ParagraphList::iterator pit = plist.begin();
694         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
695         ++pit;
696         mergeParagraph(buffer().params(), pl,
697                        distance(pl.begin(), ins) - 1);
698
699         for_each(pit, plist.end(),
700                  bind(&ParagraphList::push_back, ref(pl), _1));
701 }
702
703
704 void InsetText::addPreview(DocIterator const & text_inset_pos,
705         PreviewLoader & loader) const
706 {
707         ParagraphList::const_iterator pit = paragraphs().begin();
708         ParagraphList::const_iterator pend = paragraphs().end();
709         int pidx = 0;
710
711         DocIterator inset_pos = text_inset_pos;
712         inset_pos.push_back(CursorSlice(*const_cast<InsetText *>(this)));
713
714         for (; pit != pend; ++pit, ++pidx) {
715                 InsetList::const_iterator it  = pit->insetList().begin();
716                 InsetList::const_iterator end = pit->insetList().end();
717                 inset_pos.pit() = pidx;
718                 for (; it != end; ++it) {
719                         inset_pos.pos() = it->pos;
720                         it->inset->addPreview(inset_pos, loader);
721                 }
722         }
723 }
724
725
726 ParagraphList const & InsetText::paragraphs() const
727 {
728         return text_.paragraphs();
729 }
730
731
732 ParagraphList & InsetText::paragraphs()
733 {
734         return text_.paragraphs();
735 }
736
737
738 bool InsetText::insetAllowed(InsetCode code) const
739 {
740         switch (code) {
741         // Arguments are also allowed in PassThru insets
742         case ARG_CODE:
743                 return true;
744         default:
745                 return !isPassThru();
746         }
747 }
748
749
750 void InsetText::updateBuffer(ParIterator const & it, UpdateType utype)
751 {
752         ParIterator it2 = it;
753         it2.forwardPos();
754         LASSERT(&it2.inset() == this && it2.pit() == 0, return);
755         if (producesOutput()) {
756                 InsetLayout const & il = getLayout();
757                 bool const save_layouts = utype == OutputUpdate && il.htmlisblock();
758                 Counters & cnt = buffer().masterBuffer()->params().documentClass().counters();
759                 if (save_layouts) {
760                         // LYXERR0("Entering " << name());
761                         cnt.clearLastLayout();
762                         // FIXME cnt.saveLastCounter()?
763                 }
764                 buffer().updateBuffer(it2, utype);
765                 if (save_layouts) {
766                         // LYXERR0("Exiting " << name());
767                         cnt.restoreLastLayout();
768                         // FIXME cnt.restoreLastCounter()?
769                 }
770         } else {
771                 DocumentClass const & tclass = buffer().masterBuffer()->params().documentClass();
772                 // Note that we do not need to call:
773                 //      tclass.counters().clearLastLayout()
774                 // since we are saving and restoring the existing counters, etc.
775                 Counters const savecnt = tclass.counters();
776                 tclass.counters().reset();
777                 // we need float information even in note insets (#9760)
778                 tclass.counters().current_float(savecnt.current_float());
779                 tclass.counters().isSubfloat(savecnt.isSubfloat());
780                 buffer().updateBuffer(it2, utype);
781                 tclass.counters() = savecnt;
782         }
783 }
784
785
786 void InsetText::toString(odocstream & os) const
787 {
788         os << text().asString(0, 1, AS_STR_LABEL | AS_STR_INSETS);
789 }
790
791
792 void InsetText::forOutliner(docstring & os, size_t maxlen) const
793 {
794         if (!getLayout().isInToc())
795                 return;
796         text().forOutliner(os, maxlen, false);
797 }
798
799
800 void InsetText::addToToc(DocIterator const & cdit, bool output_active,
801                                                  UpdateType utype) const
802 {
803         DocIterator dit = cdit;
804         dit.push_back(CursorSlice(const_cast<InsetText &>(*this)));
805         iterateForToc(dit, output_active, utype);
806 }
807
808
809 void InsetText::iterateForToc(DocIterator const & cdit, bool output_active,
810                                                           UpdateType utype) const
811 {
812         DocIterator dit = cdit;
813         // This also ensures that any document has a table of contents
814         shared_ptr<Toc> toc = buffer().tocBackend().toc("tableofcontents");
815
816         BufferParams const & bufparams = buffer_->params();
817         int const min_toclevel = bufparams.documentClass().min_toclevel();
818         // we really should have done this before we got here, but it
819         // can't hurt too much to do it again
820         bool const doing_output = output_active && producesOutput();
821
822         // For each paragraph, traverse its insets and let them add
823         // their toc items
824         ParagraphList const & pars = paragraphs();
825         pit_type pend = paragraphs().size();
826         for (pit_type pit = 0; pit != pend; ++pit) {
827                 Paragraph const & par = pars[pit];
828                 dit.pit() = pit;
829                 // if we find an optarg, we'll save it for use later.
830                 InsetText const * arginset = 0;
831                 InsetList::const_iterator it  = par.insetList().begin();
832                 InsetList::const_iterator end = par.insetList().end();
833                 for (; it != end; ++it) {
834                         Inset & inset = *it->inset;
835                         dit.pos() = it->pos;
836                         //lyxerr << (void*)&inset << " code: " << inset.lyxCode() << std::endl;
837                         inset.addToToc(dit, doing_output, utype);
838                         if (inset.lyxCode() == ARG_CODE)
839                                 arginset = inset.asInsetText();
840                 }
841                 // now the toc entry for the paragraph
842                 int const toclevel = text().getTocLevel(pit);
843                 if (toclevel != Layout::NOT_IN_TOC && toclevel >= min_toclevel) {
844                         // insert this into the table of contents
845                         docstring tocstring;
846                         int const length = (doing_output && utype == OutputUpdate) ?
847                                 INT_MAX : TOC_ENTRY_LENGTH;
848                         if (arginset) {
849                                 tocstring = par.labelString();
850                                 if (!tocstring.empty())
851                                         tocstring += ' ';
852                                 arginset->text().forOutliner(tocstring, length);
853                         } else
854                                 par.forOutliner(tocstring, length);
855                         dit.pos() = 0;
856                         toc->push_back(TocItem(dit, toclevel - min_toclevel,
857                                                                   tocstring, doing_output, tocstring));
858                 }
859                 
860                 // And now the list of changes.
861                 par.addChangesToToc(dit, buffer(), doing_output);
862         }
863 }
864
865
866 bool InsetText::notifyCursorLeaves(Cursor const & old, Cursor & cur)
867 {
868         if (buffer().isClean())
869                 return Inset::notifyCursorLeaves(old, cur);
870         
871         // find text inset in old cursor
872         Cursor insetCur = old;
873         int scriptSlice = insetCur.find(this);
874         // we can try to continue here. returning true means
875         // the cursor is "now" invalid. which it was.
876         LASSERT(scriptSlice != -1, return true);
877         insetCur.cutOff(scriptSlice);
878         LASSERT(&insetCur.inset() == this, return true);
879         
880         // update the old paragraph's words
881         insetCur.paragraph().updateWords();
882         
883         return Inset::notifyCursorLeaves(old, cur);
884 }
885
886
887 bool InsetText::completionSupported(Cursor const & cur) const
888 {
889         //LASSERT(&cur.bv().cursor().inset() == this, return false);
890         return text_.completionSupported(cur);
891 }
892
893
894 bool InsetText::inlineCompletionSupported(Cursor const & cur) const
895 {
896         return completionSupported(cur);
897 }
898
899
900 bool InsetText::automaticInlineCompletion() const
901 {
902         return lyxrc.completion_inline_text;
903 }
904
905
906 bool InsetText::automaticPopupCompletion() const
907 {
908         return lyxrc.completion_popup_text;
909 }
910
911
912 bool InsetText::showCompletionCursor() const
913 {
914         return lyxrc.completion_cursor_text;
915 }
916
917
918 CompletionList const * InsetText::createCompletionList(Cursor const & cur) const
919 {
920         return completionSupported(cur) ? text_.createCompletionList(cur) : 0;
921 }
922
923
924 docstring InsetText::completionPrefix(Cursor const & cur) const
925 {
926         if (!completionSupported(cur))
927                 return docstring();
928         return text_.completionPrefix(cur);
929 }
930
931
932 bool InsetText::insertCompletion(Cursor & cur, docstring const & s,
933         bool finished)
934 {
935         if (!completionSupported(cur))
936                 return false;
937
938         return text_.insertCompletion(cur, s, finished);
939 }
940
941
942 void InsetText::completionPosAndDim(Cursor const & cur, int & x, int & y, 
943         Dimension & dim) const
944 {
945         TextMetrics const & tm = cur.bv().textMetrics(&text_);
946         tm.completionPosAndDim(cur, x, y, dim);
947 }
948
949
950 string InsetText::contextMenu(BufferView const &, int, int) const
951 {
952         string context_menu = contextMenuName();
953         if (context_menu != InsetText::contextMenuName())
954                 context_menu += ";" + InsetText::contextMenuName(); 
955         return context_menu;
956 }
957
958
959 string InsetText::contextMenuName() const
960 {
961         return "context-edit";
962 }
963
964
965 docstring InsetText::toolTipText(docstring prefix,
966                 size_t numlines, size_t len) const
967 {
968         size_t const max_length = numlines * len;
969         OutputParams rp(&buffer().params().encoding());
970         rp.for_tooltip = true;
971         odocstringstream oss;
972         oss << prefix;
973
974         ParagraphList::const_iterator beg = paragraphs().begin();
975         ParagraphList::const_iterator end = paragraphs().end();
976         ParagraphList::const_iterator it = beg;
977         bool ref_printed = false;
978         docstring str;
979
980         for (; it != end; ++it) {
981                 if (it != beg)
982                         oss << '\n';
983                 writePlaintextParagraph(buffer(), *it, oss, rp, ref_printed, max_length);
984                 str = oss.str();
985                 if (str.length() >= max_length)
986                         break;
987         }
988         return support::wrapParas(str, 4, len, numlines);
989 }
990
991
992 InsetCaption const * InsetText::getCaptionInset() const
993 {
994         ParagraphList::const_iterator pit = paragraphs().begin();
995         for (; pit != paragraphs().end(); ++pit) {
996                 InsetList::const_iterator it = pit->insetList().begin();
997                 for (; it != pit->insetList().end(); ++it) {
998                         Inset & inset = *it->inset;
999                         if (inset.lyxCode() == CAPTION_CODE) {
1000                                 InsetCaption const * ins =
1001                                         static_cast<InsetCaption const *>(it->inset);
1002                                 return ins;
1003                         }
1004                 }
1005         }
1006         return 0;
1007 }
1008
1009
1010 docstring InsetText::getCaptionText(OutputParams const & runparams) const
1011 {
1012         InsetCaption const * ins = getCaptionInset();
1013         if (ins == 0)
1014                 return docstring();
1015
1016         odocstringstream ods;
1017         ins->getCaptionAsPlaintext(ods, runparams);
1018         return ods.str();
1019 }
1020
1021
1022 docstring InsetText::getCaptionHTML(OutputParams const & runparams) const
1023 {
1024         InsetCaption const * ins = getCaptionInset();
1025         if (ins == 0)
1026                 return docstring();
1027
1028         odocstringstream ods;
1029         XHTMLStream xs(ods);
1030         docstring def = ins->getCaptionAsHTML(xs, runparams);
1031         if (!def.empty())
1032                 // should already have been escaped
1033                 xs << XHTMLStream::ESCAPE_NONE << def << '\n';
1034         return ods.str();
1035 }
1036
1037
1038 InsetText::XHTMLOptions operator|(InsetText::XHTMLOptions a1, InsetText::XHTMLOptions a2)
1039 {
1040         return static_cast<InsetText::XHTMLOptions>((int)a1 | (int)a2);
1041 }
1042
1043 } // namespace lyx