]> git.lyx.org Git - lyx.git/blob - src/insets/InsetText.cpp
Fix argument status detection for InsetText
[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().latexargs().empty()
342                     || !cur.paragraph().layout().itemargs().empty())
343                         return text_.getStatus(cur, cmd, status);
344
345                 Layout::LaTeXArgMap args = getLayout().latexargs();
346                 Layout::LaTeXArgMap::const_iterator const lait = args.find(arg);
347                 if (lait != args.end()) {
348                         status.setEnabled(true);
349                         ParagraphList::const_iterator pit = paragraphs().begin();
350                         for (; pit != paragraphs().end(); ++pit) {
351                                 InsetList::const_iterator it = pit->insetList().begin();
352                                 InsetList::const_iterator end = pit->insetList().end();
353                                 for (; it != end; ++it) {
354                                         if (it->inset->lyxCode() == ARG_CODE) {
355                                                 InsetArgument const * ins =
356                                                         static_cast<InsetArgument const *>(it->inset);
357                                                 if (ins->name() == arg) {
358                                                         // we have this already
359                                                         status.setEnabled(false);
360                                                         return true;
361                                                 }
362                                         }
363                                 }
364                         }
365                 } else
366                         status.setEnabled(false);
367                 return true;
368         }
369
370         default:
371                 // Dispatch only to text_ if the cursor is inside
372                 // the text_. It is not for context menus (bug 5797).
373                 bool ret = false;
374                 if (cur.text() == &text_)
375                         ret = text_.getStatus(cur, cmd, status);
376                 
377                 if (!ret)
378                         ret = Inset::getStatus(cur, cmd, status);
379                 return ret;
380         }
381 }
382
383
384 void InsetText::fixParagraphsFont()
385 {
386         Font font(inherit_font, buffer().params().language);
387         font.setLanguage(latex_language);
388         ParagraphList::iterator par = paragraphs().begin();
389         ParagraphList::iterator const end = paragraphs().end();
390         while (par != end) {
391                 if (par->isPassThru())
392                         par->resetFonts(font);
393                 if (!par->allowParagraphCustomization())
394                         par->params().clear();
395                 ++par;
396         }
397 }
398
399
400 void InsetText::setChange(Change const & change)
401 {
402         ParagraphList::iterator pit = paragraphs().begin();
403         ParagraphList::iterator end = paragraphs().end();
404         for (; pit != end; ++pit) {
405                 pit->setChange(change);
406         }
407 }
408
409
410 void InsetText::acceptChanges()
411 {
412         text_.acceptChanges();
413 }
414
415
416 void InsetText::rejectChanges()
417 {
418         text_.rejectChanges();
419 }
420
421
422 void InsetText::validate(LaTeXFeatures & features) const
423 {
424         features.useInsetLayout(getLayout());
425         for_each(paragraphs().begin(), paragraphs().end(),
426                  bind(&Paragraph::validate, _1, ref(features)));
427 }
428
429
430 void InsetText::latex(otexstream & os, OutputParams const & runparams) const
431 {
432         // This implements the standard way of handling the LaTeX
433         // output of a text inset, either a command or an
434         // environment. Standard collapsable insets should not
435         // redefine this, non-standard ones may call this.
436         InsetLayout const & il = getLayout();
437         if (!il.latexname().empty()) {
438                 if (il.latextype() == InsetLayout::COMMAND) {
439                         // FIXME UNICODE
440                         if (runparams.moving_arg)
441                                 os << "\\protect";
442                         os << '\\' << from_utf8(il.latexname());
443                         if (!il.latexargs().empty())
444                                 getOptArg(os, runparams);
445                         if (!il.latexparam().empty())
446                                 os << from_utf8(il.latexparam());
447                         os << '{';
448                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
449                         if (il.isDisplay())
450                                 os << breakln;
451                         else
452                                 os << safebreakln;
453                         if (runparams.lastid != -1)
454                                 os.texrow().start(runparams.lastid,
455                                                   runparams.lastpos);
456                         os << "\\begin{" << from_utf8(il.latexname()) << "}";
457                         if (!il.latexargs().empty())
458                                 getOptArg(os, runparams);
459                         if (!il.latexparam().empty())
460                                 os << from_utf8(il.latexparam());
461                         os << '\n';
462                 }
463         } else {
464                 if (!il.latexargs().empty())
465                         getOptArg(os, runparams);
466                 if (!il.latexparam().empty())
467                         os << from_utf8(il.latexparam());
468         }
469
470         if (!il.leftdelim().empty())
471                 os << il.leftdelim();
472
473         OutputParams rp = runparams;
474         if (isPassThru())
475                 rp.pass_thru = true;
476         if (il.isNeedProtect())
477                 rp.moving_arg = true;
478         rp.par_begin = 0;
479         rp.par_end = paragraphs().size();
480
481         // Output the contents of the inset
482         latexParagraphs(buffer(), text_, os, rp);
483         runparams.encoding = rp.encoding;
484
485         if (!il.rightdelim().empty())
486                 os << il.rightdelim();
487
488         if (!il.latexname().empty()) {
489                 if (il.latextype() == InsetLayout::COMMAND) {
490                         os << "}";
491                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
492                         // A comment environment doesn't need a % before \n\end
493                         if (il.isDisplay() || runparams.inComment)
494                             os << breakln;
495                         else
496                             os << safebreakln;
497                         os << "\\end{" << from_utf8(il.latexname()) << "}\n";
498                         if (!il.isDisplay())
499                                 os.protectSpace(true);
500                 }
501         }
502 }
503
504
505 int InsetText::plaintext(odocstream & os, OutputParams const & runparams) const
506 {
507         ParagraphList::const_iterator beg = paragraphs().begin();
508         ParagraphList::const_iterator end = paragraphs().end();
509         ParagraphList::const_iterator it = beg;
510         bool ref_printed = false;
511         int len = 0;
512         for (; it != end; ++it) {
513                 if (it != beg) {
514                         os << '\n';
515                         if (runparams.linelen > 0)
516                                 os << '\n';
517                 }
518                 odocstringstream oss;
519                 writePlaintextParagraph(buffer(), *it, oss, runparams, ref_printed);
520                 docstring const str = oss.str();
521                 os << str;
522                 // FIXME: len is not computed fully correctly; in principle,
523                 // we have to count the characters after the last '\n'
524                 len = str.size();
525         }
526
527         return len;
528 }
529
530
531 int InsetText::docbook(odocstream & os, OutputParams const & runparams) const
532 {
533         ParagraphList::const_iterator const beg = paragraphs().begin();
534
535         if (!undefined())
536                 sgml::openTag(os, getLayout().latexname(),
537                               beg->getID(buffer(), runparams) + getLayout().latexparam());
538
539         docbookParagraphs(text_, buffer(), os, runparams);
540
541         if (!undefined())
542                 sgml::closeTag(os, getLayout().latexname());
543
544         return 0;
545 }
546
547
548 docstring InsetText::xhtml(XHTMLStream & xs, OutputParams const & runparams) const
549 {
550         return insetAsXHTML(xs, runparams, WriteEverything);
551 }
552
553
554 // FIXME XHTML
555 // There are cases where we may need to close open fonts and such
556 // and then re-open them when we are done. This would be the case, e.g.,
557 // if we were otherwise about to write:
558 //              <em>word <div class='foot'>footnote text.</div> emph</em>
559 // The problem isn't so much that the footnote text will get emphasized:
560 // we can handle that with CSS. The problem is that this is invalid XHTML.
561 // One solution would be to make the footnote <span>, but the problem is
562 // completely general, and so we'd have to make absolutely everything into
563 // span. What I think will work is to check if we're about to write "div" and,
564 // if so, try to close fonts, etc. 
565 // There are probably limits to how well we can do here, though, and we will
566 // have to rely upon users not putting footnotes inside noun-type insets.
567 docstring InsetText::insetAsXHTML(XHTMLStream & xs, OutputParams const & rp,
568                                   XHTMLOptions opts) const
569 {
570         // we will always want to output all our paragraphs when we are
571         // called this way.
572         OutputParams runparams = rp;
573         runparams.par_begin = 0;
574         runparams.par_end = text().paragraphs().size();
575         
576         if (undefined()) {
577                 xhtmlParagraphs(text_, buffer(), xs, runparams);
578                 return docstring();
579         }
580
581         InsetLayout const & il = getLayout();
582         if (opts & WriteOuterTag)
583                 xs << html::StartTag(il.htmltag(), il.htmlattr());
584         if ((opts & WriteLabel) && !il.counter().empty()) {
585                 BufferParams const & bp = buffer().masterBuffer()->params();
586                 Counters & cntrs = bp.documentClass().counters();
587                 cntrs.step(il.counter(), OutputUpdate);
588                 // FIXME: translate to paragraph language
589                 if (!il.htmllabel().empty()) {
590                         docstring const lbl = 
591                                 cntrs.counterLabel(from_utf8(il.htmllabel()), bp.language->code());
592                         // FIXME is this check necessary?
593                         if (!lbl.empty()) {
594                                 xs << html::StartTag(il.htmllabeltag(), il.htmllabelattr());
595                                 xs << lbl;
596                                 xs << html::EndTag(il.htmllabeltag());
597                         }
598                 }
599         }
600
601         if (opts & WriteInnerTag)
602                 xs << html::StartTag(il.htmlinnertag(), il.htmlinnerattr());
603         OutputParams ours = runparams;
604         if (!il.isMultiPar() || opts == JustText)
605                 ours.html_make_pars = false;
606         xhtmlParagraphs(text_, buffer(), xs, ours);
607         if (opts & WriteInnerTag)
608                 xs << html::EndTag(il.htmlinnertag());
609         if (opts & WriteOuterTag)
610                 xs << html::EndTag(il.htmltag());
611         return docstring();
612 }
613
614 void InsetText::getOptArg(otexstream & os,
615                         OutputParams const & runparams_in) const
616 {
617         OutputParams runparams = runparams_in;
618         runparams.local_font =
619                 &paragraphs()[0].getFirstFontSettings(buffer().masterBuffer()->params());
620         if (isPassThru())
621                 runparams.pass_thru = true;
622         latexArgInsets(paragraphs()[0], os, runparams, getLayout().latexargs());
623 }
624
625
626 void InsetText::cursorPos(BufferView const & bv,
627                 CursorSlice const & sl, bool boundary, int & x, int & y) const
628 {
629         x = bv.textMetrics(&text_).cursorX(sl, boundary) + TEXT_TO_INSET_OFFSET;
630         y = bv.textMetrics(&text_).cursorY(sl, boundary);
631 }
632
633
634 void InsetText::setText(docstring const & data, Font const & font, bool trackChanges)
635 {
636         clear();
637         Paragraph & first = paragraphs().front();
638         for (unsigned int i = 0; i < data.length(); ++i)
639                 first.insertChar(i, data[i], font, trackChanges);
640 }
641
642
643 void InsetText::setAutoBreakRows(bool flag)
644 {
645         if (flag == text_.autoBreakRows_)
646                 return;
647
648         text_.autoBreakRows_ = flag;
649         if (flag)
650                 return;
651
652         // remove previously existing newlines
653         ParagraphList::iterator it = paragraphs().begin();
654         ParagraphList::iterator end = paragraphs().end();
655         for (; it != end; ++it)
656                 for (int i = 0; i < it->size(); ++i)
657                         if (it->isNewline(i))
658                                 // do not track the change, because the user
659                                 // is not allowed to revert/reject it
660                                 it->eraseChar(i, false);
661 }
662
663
664 void InsetText::setDrawFrame(bool flag)
665 {
666         drawFrame_ = flag;
667 }
668
669
670 ColorCode InsetText::frameColor() const
671 {
672         return frame_color_;
673 }
674
675
676 void InsetText::setFrameColor(ColorCode col)
677 {
678         frame_color_ = col;
679 }
680
681
682 void InsetText::appendParagraphs(ParagraphList & plist)
683 {
684         // There is little we can do here to keep track of changes.
685         // As of 2006/10/20, appendParagraphs is used exclusively by
686         // LyXTabular::setMultiColumn. In this context, the paragraph break
687         // is lost irreversibly and the appended text doesn't really change
688
689         ParagraphList & pl = paragraphs();
690
691         ParagraphList::iterator pit = plist.begin();
692         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
693         ++pit;
694         mergeParagraph(buffer().params(), pl,
695                        distance(pl.begin(), ins) - 1);
696
697         for_each(pit, plist.end(),
698                  bind(&ParagraphList::push_back, ref(pl), _1));
699 }
700
701
702 void InsetText::addPreview(DocIterator const & text_inset_pos,
703         PreviewLoader & loader) const
704 {
705         ParagraphList::const_iterator pit = paragraphs().begin();
706         ParagraphList::const_iterator pend = paragraphs().end();
707         int pidx = 0;
708
709         DocIterator inset_pos = text_inset_pos;
710         inset_pos.push_back(CursorSlice(*const_cast<InsetText *>(this)));
711
712         for (; pit != pend; ++pit, ++pidx) {
713                 InsetList::const_iterator it  = pit->insetList().begin();
714                 InsetList::const_iterator end = pit->insetList().end();
715                 inset_pos.pit() = pidx;
716                 for (; it != end; ++it) {
717                         inset_pos.pos() = it->pos;
718                         it->inset->addPreview(inset_pos, loader);
719                 }
720         }
721 }
722
723
724 ParagraphList const & InsetText::paragraphs() const
725 {
726         return text_.paragraphs();
727 }
728
729
730 ParagraphList & InsetText::paragraphs()
731 {
732         return text_.paragraphs();
733 }
734
735
736 bool InsetText::insetAllowed(InsetCode code) const
737 {
738         switch (code) {
739         // Arguments are also allowed in PassThru insets
740         case ARG_CODE:
741                 return true;
742         default:
743                 return !isPassThru();
744         }
745 }
746
747
748 void InsetText::updateBuffer(ParIterator const & it, UpdateType utype)
749 {
750         ParIterator it2 = it;
751         it2.forwardPos();
752         LASSERT(&it2.inset() == this && it2.pit() == 0, return);
753         if (producesOutput()) {
754                 InsetLayout const & il = getLayout();
755                 bool const save_layouts = utype == OutputUpdate && il.htmlisblock();
756                 Counters & cnt = buffer().masterBuffer()->params().documentClass().counters();
757                 if (save_layouts) {
758                         // LYXERR0("Entering " << name());
759                         cnt.clearLastLayout();
760                         // FIXME cnt.saveLastCounter()?
761                 }
762                 buffer().updateBuffer(it2, utype);
763                 if (save_layouts) {
764                         // LYXERR0("Exiting " << name());
765                         cnt.restoreLastLayout();
766                         // FIXME cnt.restoreLastCounter()?
767                 }
768         } else {
769                 DocumentClass const & tclass = buffer().masterBuffer()->params().documentClass();
770                 // Note that we do not need to call:
771                 //      tclass.counters().clearLastLayout()
772                 // since we are saving and restoring the existing counters, etc.
773                 Counters const savecnt = tclass.counters();
774                 tclass.counters().reset();
775                 buffer().updateBuffer(it2, utype);
776                 tclass.counters() = savecnt;
777         }
778 }
779
780
781 void InsetText::toString(odocstream & os) const
782 {
783         os << text().asString(0, 1, AS_STR_LABEL | AS_STR_INSETS);
784 }
785
786
787 void InsetText::forToc(docstring & os, size_t maxlen) const
788 {
789         if (!getLayout().isInToc())
790                 return;
791         text().forToc(os, maxlen, false);
792 }
793
794
795 void InsetText::addToToc(DocIterator const & cdit) const
796 {
797         DocIterator dit = cdit;
798         dit.push_back(CursorSlice(const_cast<InsetText &>(*this)));
799         Toc & toc = buffer().tocBackend().toc("tableofcontents");
800
801         BufferParams const & bufparams = buffer_->params();
802         int const min_toclevel = bufparams.documentClass().min_toclevel();
803
804         // For each paragraph, traverse its insets and let them add
805         // their toc items
806         ParagraphList const & pars = paragraphs();
807         pit_type pend = paragraphs().size();
808         for (pit_type pit = 0; pit != pend; ++pit) {
809                 Paragraph const & par = pars[pit];
810                 dit.pit() = pit;
811                 // if we find an optarg, we'll save it for use later.
812                 InsetText const * arginset = 0;
813                 InsetList::const_iterator it  = par.insetList().begin();
814                 InsetList::const_iterator end = par.insetList().end();
815                 for (; it != end; ++it) {
816                         Inset & inset = *it->inset;
817                         dit.pos() = it->pos;
818                         //lyxerr << (void*)&inset << " code: " << inset.lyxCode() << std::endl;
819                         inset.addToToc(dit);
820                         if (inset.lyxCode() == ARG_CODE)
821                                 arginset = inset.asInsetText();
822                 }
823                 // now the toc entry for the paragraph
824                 int const toclevel = par.layout().toclevel;
825                 if (toclevel != Layout::NOT_IN_TOC && toclevel >= min_toclevel) {
826                         // insert this into the table of contents
827                         docstring tocstring;
828                         if (arginset) {
829                                 tocstring = par.labelString();
830                                 if (!tocstring.empty())
831                                         tocstring += ' ';
832                                 arginset->text().forToc(tocstring, TOC_ENTRY_LENGTH);
833                         } else
834                                 par.forToc(tocstring, TOC_ENTRY_LENGTH);
835                         dit.pos() = 0;
836                         toc.push_back(TocItem(dit, toclevel - min_toclevel,
837                                 tocstring, tocstring));
838                 }
839                 
840                 // And now the list of changes.
841                 par.addChangesToToc(dit, buffer());
842         }
843 }
844
845
846 bool InsetText::notifyCursorLeaves(Cursor const & old, Cursor & cur)
847 {
848         if (buffer().isClean())
849                 return Inset::notifyCursorLeaves(old, cur);
850         
851         // find text inset in old cursor
852         Cursor insetCur = old;
853         int scriptSlice = insetCur.find(this);
854         LASSERT(scriptSlice != -1, /**/);
855         insetCur.cutOff(scriptSlice);
856         LASSERT(&insetCur.inset() == this, /**/);
857         
858         // update the old paragraph's words
859         insetCur.paragraph().updateWords();
860         
861         return Inset::notifyCursorLeaves(old, cur);
862 }
863
864
865 bool InsetText::completionSupported(Cursor const & cur) const
866 {
867         //LASSERT(&cur.bv().cursor().inset() != this, return false);
868         return text_.completionSupported(cur);
869 }
870
871
872 bool InsetText::inlineCompletionSupported(Cursor const & cur) const
873 {
874         return completionSupported(cur);
875 }
876
877
878 bool InsetText::automaticInlineCompletion() const
879 {
880         return lyxrc.completion_inline_text;
881 }
882
883
884 bool InsetText::automaticPopupCompletion() const
885 {
886         return lyxrc.completion_popup_text;
887 }
888
889
890 bool InsetText::showCompletionCursor() const
891 {
892         return lyxrc.completion_cursor_text;
893 }
894
895
896 CompletionList const * InsetText::createCompletionList(Cursor const & cur) const
897 {
898         return completionSupported(cur) ? text_.createCompletionList(cur) : 0;
899 }
900
901
902 docstring InsetText::completionPrefix(Cursor const & cur) const
903 {
904         if (!completionSupported(cur))
905                 return docstring();
906         return text_.completionPrefix(cur);
907 }
908
909
910 bool InsetText::insertCompletion(Cursor & cur, docstring const & s,
911         bool finished)
912 {
913         if (!completionSupported(cur))
914                 return false;
915
916         return text_.insertCompletion(cur, s, finished);
917 }
918
919
920 void InsetText::completionPosAndDim(Cursor const & cur, int & x, int & y, 
921         Dimension & dim) const
922 {
923         TextMetrics const & tm = cur.bv().textMetrics(&text_);
924         tm.completionPosAndDim(cur, x, y, dim);
925 }
926
927
928 string InsetText::contextMenu(BufferView const &, int, int) const
929 {
930         string context_menu = contextMenuName();
931         if (context_menu != InsetText::contextMenuName())
932                 context_menu += ";" + InsetText::contextMenuName(); 
933         return context_menu;
934 }
935
936
937 string InsetText::contextMenuName() const
938 {
939         return "context-edit";
940 }
941
942
943 docstring InsetText::toolTipText(docstring prefix,
944                 size_t numlines, size_t len) const
945 {
946         size_t const max_length = numlines * len;
947         OutputParams rp(&buffer().params().encoding());
948         odocstringstream oss;
949         oss << prefix;
950
951         ParagraphList::const_iterator beg = paragraphs().begin();
952         ParagraphList::const_iterator end = paragraphs().end();
953         ParagraphList::const_iterator it = beg;
954         bool ref_printed = false;
955         docstring str;
956
957         for (; it != end; ++it) {
958                 if (it != beg)
959                         oss << '\n';
960                 writePlaintextParagraph(buffer(), *it, oss, rp, ref_printed);
961                 str = oss.str();
962                 if (str.length() > max_length)
963                         break;
964         }
965         return support::wrapParas(str, 4, len, numlines);
966 }
967
968
969 InsetCaption const * InsetText::getCaptionInset() const
970 {
971         ParagraphList::const_iterator pit = paragraphs().begin();
972         for (; pit != paragraphs().end(); ++pit) {
973                 InsetList::const_iterator it = pit->insetList().begin();
974                 for (; it != pit->insetList().end(); ++it) {
975                         Inset & inset = *it->inset;
976                         if (inset.lyxCode() == CAPTION_CODE) {
977                                 InsetCaption const * ins =
978                                         static_cast<InsetCaption const *>(it->inset);
979                                 return ins;
980                         }
981                 }
982         }
983         return 0;
984 }
985
986
987 docstring InsetText::getCaptionText(OutputParams const & runparams) const
988 {
989         InsetCaption const * ins = getCaptionInset();
990         if (ins == 0)
991                 return docstring();
992
993         odocstringstream ods;
994         ins->getCaptionAsPlaintext(ods, runparams);
995         return ods.str();
996 }
997
998
999 docstring InsetText::getCaptionHTML(OutputParams const & runparams) const
1000 {
1001         InsetCaption const * ins = getCaptionInset();
1002         if (ins == 0)
1003                 return docstring();
1004
1005         odocstringstream ods;
1006         XHTMLStream xs(ods);
1007         docstring def = ins->getCaptionAsHTML(xs, runparams);
1008         if (!def.empty())
1009                 // should already have been escaped
1010                 xs << XHTMLStream::ESCAPE_NONE << def << '\n';
1011         return ods.str();
1012 }
1013
1014
1015 InsetText::XHTMLOptions operator|(InsetText::XHTMLOptions a1, InsetText::XHTMLOptions a2)
1016 {
1017         return static_cast<InsetText::XHTMLOptions>((int)a1 | (int)a2);
1018 }
1019
1020 } // namespace lyx