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[lyx.git] / src / insets / InsetText.cpp
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 (isPassThru()) {
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().latexargs();
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.latexname().empty()) {
437                 if (il.latextype() == InsetLayout::COMMAND) {
438                         // FIXME UNICODE
439                         if (runparams.moving_arg)
440                                 os << "\\protect";
441                         os << '\\' << from_utf8(il.latexname());
442                         if (!il.latexargs().empty())
443                                 getOptArg(os, runparams);
444                         if (!il.latexparam().empty())
445                                 os << from_utf8(il.latexparam());
446                         os << '{';
447                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
448                         if (il.isDisplay())
449                                 os << breakln;
450                         else
451                                 os << safebreakln;
452                         if (runparams.lastid != -1)
453                                 os.texrow().start(runparams.lastid,
454                                                   runparams.lastpos);
455                         os << "\\begin{" << from_utf8(il.latexname()) << "}";
456                         if (!il.latexargs().empty())
457                                 getOptArg(os, runparams);
458                         if (!il.latexparam().empty())
459                                 os << from_utf8(il.latexparam());
460                         os << '\n';
461                 }
462         } else {
463                 if (!il.latexargs().empty())
464                         getOptArg(os, runparams);
465                 if (!il.latexparam().empty())
466                         os << from_utf8(il.latexparam());
467         }
468
469         if (!il.leftdelim().empty())
470                 os << il.leftdelim();
471
472         OutputParams rp = runparams;
473         if (isPassThru())
474                 rp.pass_thru = true;
475         if (il.isNeedProtect())
476                 rp.moving_arg = true;
477         rp.par_begin = 0;
478         rp.par_end = paragraphs().size();
479
480         // Output the contents of the inset
481         latexParagraphs(buffer(), text_, os, rp);
482         runparams.encoding = rp.encoding;
483
484         if (!il.rightdelim().empty())
485                 os << il.rightdelim();
486
487         if (!il.latexname().empty()) {
488                 if (il.latextype() == InsetLayout::COMMAND) {
489                         os << "}";
490                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
491                         // A comment environment doesn't need a % before \n\end
492                         if (il.isDisplay() || runparams.inComment)
493                             os << breakln;
494                         else
495                             os << safebreakln;
496                         os << "\\end{" << from_utf8(il.latexname()) << "}\n";
497                         if (!il.isDisplay())
498                                 os.protectSpace(true);
499                 }
500         }
501 }
502
503
504 int InsetText::plaintext(odocstream & os, OutputParams const & runparams) const
505 {
506         ParagraphList::const_iterator beg = paragraphs().begin();
507         ParagraphList::const_iterator end = paragraphs().end();
508         ParagraphList::const_iterator it = beg;
509         bool ref_printed = false;
510         int len = 0;
511         for (; it != end; ++it) {
512                 if (it != beg) {
513                         os << '\n';
514                         if (runparams.linelen > 0)
515                                 os << '\n';
516                 }
517                 odocstringstream oss;
518                 writePlaintextParagraph(buffer(), *it, oss, runparams, ref_printed);
519                 docstring const str = oss.str();
520                 os << str;
521                 // FIXME: len is not computed fully correctly; in principle,
522                 // we have to count the characters after the last '\n'
523                 len = str.size();
524         }
525
526         return len;
527 }
528
529
530 int InsetText::docbook(odocstream & os, OutputParams const & runparams) const
531 {
532         ParagraphList::const_iterator const beg = paragraphs().begin();
533
534         if (!undefined())
535                 sgml::openTag(os, getLayout().latexname(),
536                               beg->getID(buffer(), runparams) + getLayout().latexparam());
537
538         docbookParagraphs(text_, buffer(), os, runparams);
539
540         if (!undefined())
541                 sgml::closeTag(os, getLayout().latexname());
542
543         return 0;
544 }
545
546
547 docstring InsetText::xhtml(XHTMLStream & xs, OutputParams const & runparams) const
548 {
549         return insetAsXHTML(xs, runparams, WriteEverything);
550 }
551
552
553 // FIXME XHTML
554 // There are cases where we may need to close open fonts and such
555 // and then re-open them when we are done. This would be the case, e.g.,
556 // if we were otherwise about to write:
557 //              <em>word <div class='foot'>footnote text.</div> emph</em>
558 // The problem isn't so much that the footnote text will get emphasized:
559 // we can handle that with CSS. The problem is that this is invalid XHTML.
560 // One solution would be to make the footnote <span>, but the problem is
561 // completely general, and so we'd have to make absolutely everything into
562 // span. What I think will work is to check if we're about to write "div" and,
563 // if so, try to close fonts, etc. 
564 // There are probably limits to how well we can do here, though, and we will
565 // have to rely upon users not putting footnotes inside noun-type insets.
566 docstring InsetText::insetAsXHTML(XHTMLStream & xs, OutputParams const & rp,
567                                   XHTMLOptions opts) const
568 {
569         // we will always want to output all our paragraphs when we are
570         // called this way.
571         OutputParams runparams = rp;
572         runparams.par_begin = 0;
573         runparams.par_end = text().paragraphs().size();
574         
575         if (undefined()) {
576                 xhtmlParagraphs(text_, buffer(), xs, runparams);
577                 return docstring();
578         }
579
580         InsetLayout const & il = getLayout();
581         if (opts & WriteOuterTag)
582                 xs << html::StartTag(il.htmltag(), il.htmlattr());
583         if ((opts & WriteLabel) && !il.counter().empty()) {
584                 BufferParams const & bp = buffer().masterBuffer()->params();
585                 Counters & cntrs = bp.documentClass().counters();
586                 cntrs.step(il.counter(), OutputUpdate);
587                 // FIXME: translate to paragraph language
588                 if (!il.htmllabel().empty()) {
589                         docstring const lbl = 
590                                 cntrs.counterLabel(from_utf8(il.htmllabel()), bp.language->code());
591                         // FIXME is this check necessary?
592                         if (!lbl.empty()) {
593                                 xs << html::StartTag(il.htmllabeltag(), il.htmllabelattr());
594                                 xs << lbl;
595                                 xs << html::EndTag(il.htmllabeltag());
596                         }
597                 }
598         }
599
600         if (opts & WriteInnerTag)
601                 xs << html::StartTag(il.htmlinnertag(), il.htmlinnerattr());
602         OutputParams ours = runparams;
603         if (!il.isMultiPar() || opts == JustText)
604                 ours.html_make_pars = false;
605         xhtmlParagraphs(text_, buffer(), xs, ours);
606         if (opts & WriteInnerTag)
607                 xs << html::EndTag(il.htmlinnertag());
608         if (opts & WriteOuterTag)
609                 xs << html::EndTag(il.htmltag());
610         return docstring();
611 }
612
613 void InsetText::getOptArg(otexstream & os,
614                         OutputParams const & runparams_in) const
615 {
616         OutputParams runparams = runparams_in;
617         runparams.local_font =
618                 &paragraphs()[0].getFirstFontSettings(buffer().masterBuffer()->params());
619         if (isPassThru())
620                 runparams.pass_thru = true;
621         latexArgInsets(paragraphs(), paragraphs().begin(), os, runparams, getLayout().latexargs());
622 }
623
624
625 void InsetText::cursorPos(BufferView const & bv,
626                 CursorSlice const & sl, bool boundary, int & x, int & y) const
627 {
628         x = bv.textMetrics(&text_).cursorX(sl, boundary) + TEXT_TO_INSET_OFFSET;
629         y = bv.textMetrics(&text_).cursorY(sl, boundary);
630 }
631
632
633 void InsetText::setText(docstring const & data, Font const & font, bool trackChanges)
634 {
635         clear();
636         Paragraph & first = paragraphs().front();
637         for (unsigned int i = 0; i < data.length(); ++i)
638                 first.insertChar(i, data[i], font, trackChanges);
639 }
640
641
642 void InsetText::setAutoBreakRows(bool flag)
643 {
644         if (flag == text_.autoBreakRows_)
645                 return;
646
647         text_.autoBreakRows_ = flag;
648         if (flag)
649                 return;
650
651         // remove previously existing newlines
652         ParagraphList::iterator it = paragraphs().begin();
653         ParagraphList::iterator end = paragraphs().end();
654         for (; it != end; ++it)
655                 for (int i = 0; i < it->size(); ++i)
656                         if (it->isNewline(i))
657                                 // do not track the change, because the user
658                                 // is not allowed to revert/reject it
659                                 it->eraseChar(i, false);
660 }
661
662
663 void InsetText::setDrawFrame(bool flag)
664 {
665         drawFrame_ = flag;
666 }
667
668
669 ColorCode InsetText::frameColor() const
670 {
671         return frame_color_;
672 }
673
674
675 void InsetText::setFrameColor(ColorCode col)
676 {
677         frame_color_ = col;
678 }
679
680
681 void InsetText::appendParagraphs(ParagraphList & plist)
682 {
683         // There is little we can do here to keep track of changes.
684         // As of 2006/10/20, appendParagraphs is used exclusively by
685         // LyXTabular::setMultiColumn. In this context, the paragraph break
686         // is lost irreversibly and the appended text doesn't really change
687
688         ParagraphList & pl = paragraphs();
689
690         ParagraphList::iterator pit = plist.begin();
691         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
692         ++pit;
693         mergeParagraph(buffer().params(), pl,
694                        distance(pl.begin(), ins) - 1);
695
696         for_each(pit, plist.end(),
697                  bind(&ParagraphList::push_back, ref(pl), _1));
698 }
699
700
701 void InsetText::addPreview(DocIterator const & text_inset_pos,
702         PreviewLoader & loader) const
703 {
704         ParagraphList::const_iterator pit = paragraphs().begin();
705         ParagraphList::const_iterator pend = paragraphs().end();
706         int pidx = 0;
707
708         DocIterator inset_pos = text_inset_pos;
709         inset_pos.push_back(CursorSlice(*const_cast<InsetText *>(this)));
710
711         for (; pit != pend; ++pit, ++pidx) {
712                 InsetList::const_iterator it  = pit->insetList().begin();
713                 InsetList::const_iterator end = pit->insetList().end();
714                 inset_pos.pit() = pidx;
715                 for (; it != end; ++it) {
716                         inset_pos.pos() = it->pos;
717                         it->inset->addPreview(inset_pos, loader);
718                 }
719         }
720 }
721
722
723 ParagraphList const & InsetText::paragraphs() const
724 {
725         return text_.paragraphs();
726 }
727
728
729 ParagraphList & InsetText::paragraphs()
730 {
731         return text_.paragraphs();
732 }
733
734
735 bool InsetText::insetAllowed(InsetCode code) const
736 {
737         switch (code) {
738         // Arguments are also allowed in PassThru insets
739         case ARG_CODE:
740                 return true;
741         default:
742                 return !isPassThru();
743         }
744 }
745
746
747 void InsetText::updateBuffer(ParIterator const & it, UpdateType utype)
748 {
749         ParIterator it2 = it;
750         it2.forwardPos();
751         LASSERT(&it2.inset() == this && it2.pit() == 0, return);
752         if (producesOutput()) {
753                 InsetLayout const & il = getLayout();
754                 bool const save_layouts = utype == OutputUpdate && il.htmlisblock();
755                 Counters & cnt = buffer().masterBuffer()->params().documentClass().counters();
756                 if (save_layouts) {
757                         // LYXERR0("Entering " << name());
758                         cnt.clearLastLayout();
759                         // FIXME cnt.saveLastCounter()?
760                 }
761                 buffer().updateBuffer(it2, utype);
762                 if (save_layouts) {
763                         // LYXERR0("Exiting " << name());
764                         cnt.restoreLastLayout();
765                         // FIXME cnt.restoreLastCounter()?
766                 }
767         } else {
768                 DocumentClass const & tclass = buffer().masterBuffer()->params().documentClass();
769                 // Note that we do not need to call:
770                 //      tclass.counters().clearLastLayout()
771                 // since we are saving and restoring the existing counters, etc.
772                 Counters const savecnt = tclass.counters();
773                 tclass.counters().reset();
774                 buffer().updateBuffer(it2, utype);
775                 tclass.counters() = savecnt;
776         }
777 }
778
779
780 void InsetText::toString(odocstream & os) const
781 {
782         os << text().asString(0, 1, AS_STR_LABEL | AS_STR_INSETS);
783 }
784
785
786 void InsetText::forToc(docstring & os, size_t maxlen) const
787 {
788         if (!getLayout().isInToc())
789                 return;
790         text().forToc(os, maxlen, false);
791 }
792
793
794 void InsetText::addToToc(DocIterator const & cdit) const
795 {
796         DocIterator dit = cdit;
797         dit.push_back(CursorSlice(const_cast<InsetText &>(*this)));
798         Toc & toc = buffer().tocBackend().toc("tableofcontents");
799
800         BufferParams const & bufparams = buffer_->params();
801         int const min_toclevel = bufparams.documentClass().min_toclevel();
802
803         // For each paragraph, traverse its insets and let them add
804         // their toc items
805         ParagraphList const & pars = paragraphs();
806         pit_type pend = paragraphs().size();
807         for (pit_type pit = 0; pit != pend; ++pit) {
808                 Paragraph const & par = pars[pit];
809                 dit.pit() = pit;
810                 // if we find an optarg, we'll save it for use later.
811                 InsetText const * arginset = 0;
812                 InsetList::const_iterator it  = par.insetList().begin();
813                 InsetList::const_iterator end = par.insetList().end();
814                 for (; it != end; ++it) {
815                         Inset & inset = *it->inset;
816                         dit.pos() = it->pos;
817                         //lyxerr << (void*)&inset << " code: " << inset.lyxCode() << std::endl;
818                         inset.addToToc(dit);
819                         if (inset.lyxCode() == ARG_CODE)
820                                 arginset = inset.asInsetText();
821                 }
822                 // now the toc entry for the paragraph
823                 int const toclevel = text().getTocLevel(pit);
824                 if (toclevel != Layout::NOT_IN_TOC && toclevel >= min_toclevel) {
825                         // insert this into the table of contents
826                         docstring tocstring;
827                         if (arginset) {
828                                 tocstring = par.labelString();
829                                 if (!tocstring.empty())
830                                         tocstring += ' ';
831                                 arginset->text().forToc(tocstring, TOC_ENTRY_LENGTH);
832                         } else
833                                 par.forToc(tocstring, TOC_ENTRY_LENGTH);
834                         dit.pos() = 0;
835                         toc.push_back(TocItem(dit, toclevel - min_toclevel,
836                                 tocstring, tocstring));
837                 }
838                 
839                 // And now the list of changes.
840                 par.addChangesToToc(dit, buffer());
841         }
842 }
843
844
845 bool InsetText::notifyCursorLeaves(Cursor const & old, Cursor & cur)
846 {
847         if (buffer().isClean())
848                 return Inset::notifyCursorLeaves(old, cur);
849         
850         // find text inset in old cursor
851         Cursor insetCur = old;
852         int scriptSlice = insetCur.find(this);
853         LASSERT(scriptSlice != -1, /**/);
854         insetCur.cutOff(scriptSlice);
855         LASSERT(&insetCur.inset() == this, /**/);
856         
857         // update the old paragraph's words
858         insetCur.paragraph().updateWords();
859         
860         return Inset::notifyCursorLeaves(old, cur);
861 }
862
863
864 bool InsetText::completionSupported(Cursor const & cur) const
865 {
866         //LASSERT(&cur.bv().cursor().inset() != this, return false);
867         return text_.completionSupported(cur);
868 }
869
870
871 bool InsetText::inlineCompletionSupported(Cursor const & cur) const
872 {
873         return completionSupported(cur);
874 }
875
876
877 bool InsetText::automaticInlineCompletion() const
878 {
879         return lyxrc.completion_inline_text;
880 }
881
882
883 bool InsetText::automaticPopupCompletion() const
884 {
885         return lyxrc.completion_popup_text;
886 }
887
888
889 bool InsetText::showCompletionCursor() const
890 {
891         return lyxrc.completion_cursor_text;
892 }
893
894
895 CompletionList const * InsetText::createCompletionList(Cursor const & cur) const
896 {
897         return completionSupported(cur) ? text_.createCompletionList(cur) : 0;
898 }
899
900
901 docstring InsetText::completionPrefix(Cursor const & cur) const
902 {
903         if (!completionSupported(cur))
904                 return docstring();
905         return text_.completionPrefix(cur);
906 }
907
908
909 bool InsetText::insertCompletion(Cursor & cur, docstring const & s,
910         bool finished)
911 {
912         if (!completionSupported(cur))
913                 return false;
914
915         return text_.insertCompletion(cur, s, finished);
916 }
917
918
919 void InsetText::completionPosAndDim(Cursor const & cur, int & x, int & y, 
920         Dimension & dim) const
921 {
922         TextMetrics const & tm = cur.bv().textMetrics(&text_);
923         tm.completionPosAndDim(cur, x, y, dim);
924 }
925
926
927 string InsetText::contextMenu(BufferView const &, int, int) const
928 {
929         string context_menu = contextMenuName();
930         if (context_menu != InsetText::contextMenuName())
931                 context_menu += ";" + InsetText::contextMenuName(); 
932         return context_menu;
933 }
934
935
936 string InsetText::contextMenuName() const
937 {
938         return "context-edit";
939 }
940
941
942 docstring InsetText::toolTipText(docstring prefix,
943                 size_t numlines, size_t len) const
944 {
945         size_t const max_length = numlines * len;
946         OutputParams rp(&buffer().params().encoding());
947         odocstringstream oss;
948         oss << prefix;
949
950         ParagraphList::const_iterator beg = paragraphs().begin();
951         ParagraphList::const_iterator end = paragraphs().end();
952         ParagraphList::const_iterator it = beg;
953         bool ref_printed = false;
954         docstring str;
955
956         for (; it != end; ++it) {
957                 if (it != beg)
958                         oss << '\n';
959                 writePlaintextParagraph(buffer(), *it, oss, rp, ref_printed);
960                 str = oss.str();
961                 if (str.length() > max_length)
962                         break;
963         }
964         return support::wrapParas(str, 4, len, numlines);
965 }
966
967
968 InsetCaption const * InsetText::getCaptionInset() const
969 {
970         ParagraphList::const_iterator pit = paragraphs().begin();
971         for (; pit != paragraphs().end(); ++pit) {
972                 InsetList::const_iterator it = pit->insetList().begin();
973                 for (; it != pit->insetList().end(); ++it) {
974                         Inset & inset = *it->inset;
975                         if (inset.lyxCode() == CAPTION_CODE) {
976                                 InsetCaption const * ins =
977                                         static_cast<InsetCaption const *>(it->inset);
978                                 return ins;
979                         }
980                 }
981         }
982         return 0;
983 }
984
985
986 docstring InsetText::getCaptionText(OutputParams const & runparams) const
987 {
988         InsetCaption const * ins = getCaptionInset();
989         if (ins == 0)
990                 return docstring();
991
992         odocstringstream ods;
993         ins->getCaptionAsPlaintext(ods, runparams);
994         return ods.str();
995 }
996
997
998 docstring InsetText::getCaptionHTML(OutputParams const & runparams) const
999 {
1000         InsetCaption const * ins = getCaptionInset();
1001         if (ins == 0)
1002                 return docstring();
1003
1004         odocstringstream ods;
1005         XHTMLStream xs(ods);
1006         docstring def = ins->getCaptionAsHTML(xs, runparams);
1007         if (!def.empty())
1008                 // should already have been escaped
1009                 xs << XHTMLStream::ESCAPE_NONE << def << '\n';
1010         return ods.str();
1011 }
1012
1013
1014 InsetText::XHTMLOptions operator|(InsetText::XHTMLOptions a1, InsetText::XHTMLOptions a2)
1015 {
1016         return static_cast<InsetText::XHTMLOptions>((int)a1 | (int)a2);
1017 }
1018
1019 } // namespace lyx