3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Asger Alstrup
7 * \author Lars Gullik Bjønnes
8 * \author Dov Feldstern
9 * \author Jean-Marc Lasgouttes
11 * \author André Pönitz
12 * \author Stefan Schimanski
14 * \author Jürgen Vigna
16 * Full author contact details are available in file CREDITS.
25 #include "buffer_funcs.h"
26 #include "BufferParams.h"
27 #include "BufferView.h"
28 #include "bufferview_funcs.h"
30 #include "ParIterator.h"
31 #include "CoordCache.h"
32 #include "CutAndPaste.h"
34 #include "DispatchResult.h"
36 #include "ErrorList.h"
37 #include "FuncRequest.h"
39 #include "FontIterator.h"
47 #include "MetricsInfo.h"
48 #include "Paragraph.h"
49 #include "paragraph_funcs.h"
50 #include "ParagraphParameters.h"
51 #include "rowpainter.h"
54 #include "WordLangTuple.h"
56 #include "frontends/FontMetrics.h"
57 #include "frontends/Painter.h"
59 #include "insets/InsetText.h"
60 #include "insets/InsetBibitem.h"
61 #include "insets/InsetCaption.h"
62 #include "insets/InsetHFill.h"
63 #include "insets/InsetLine.h"
64 #include "insets/InsetNewline.h"
65 #include "insets/InsetPagebreak.h"
66 #include "insets/InsetOptArg.h"
67 #include "insets/InsetSpace.h"
68 #include "insets/InsetSpecialChar.h"
69 #include "insets/InsetTabular.h"
71 #include "support/lstrings.h"
72 #include "support/textutils.h"
73 #include "support/convert.h"
75 #include <boost/current_function.hpp>
89 using support::bformat;
90 using support::contains;
91 using support::lowercase;
93 using support::uppercase;
95 using cap::cutSelection;
96 using cap::pasteParagraphList;
98 using frontend::FontMetrics;
102 void readParToken(Buffer const & buf, Paragraph & par, Lexer & lex,
103 string const & token, Font & font, Change & change, ErrorList & errorList)
105 BufferParams const & bp = buf.params();
107 if (token[0] != '\\') {
109 string::const_iterator cit = token.begin();
110 for (; cit != token.end(); ++cit)
111 par.insertChar(par.size(), (*cit), font, change);
113 docstring dstr = lex.getDocString();
114 docstring::const_iterator cit = dstr.begin();
115 docstring::const_iterator cend = dstr.end();
116 for (; cit != cend; ++cit)
117 par.insertChar(par.size(), *cit, font, change);
119 } else if (token == "\\begin_layout") {
121 docstring layoutname = lex.getDocString();
123 font = Font(Font::ALL_INHERIT, bp.language);
124 change = Change(Change::UNCHANGED);
126 TextClass const & tclass = bp.getTextClass();
128 if (layoutname.empty()) {
129 layoutname = tclass.defaultLayoutName();
132 bool hasLayout = tclass.hasLayout(layoutname);
135 errorList.push_back(ErrorItem(_("Unknown layout"),
136 bformat(_("Layout '%1$s' does not exist in textclass '%2$s'\nTrying to use the default instead.\n"),
137 layoutname, from_utf8(tclass.name())), par.id(), 0, par.size()));
138 layoutname = tclass.defaultLayoutName();
141 par.layout(bp.getTextClass()[layoutname]);
143 // Test whether the layout is obsolete.
144 Layout_ptr const & layout = par.layout();
145 if (!layout->obsoleted_by().empty())
146 par.layout(bp.getTextClass()[layout->obsoleted_by()]);
148 par.params().read(lex);
150 } else if (token == "\\end_layout") {
151 lyxerr << BOOST_CURRENT_FUNCTION
152 << ": Solitary \\end_layout in line "
153 << lex.getLineNo() << "\n"
154 << "Missing \\begin_layout?.\n";
155 } else if (token == "\\end_inset") {
156 lyxerr << BOOST_CURRENT_FUNCTION
157 << ": Solitary \\end_inset in line "
158 << lex.getLineNo() << "\n"
159 << "Missing \\begin_inset?.\n";
160 } else if (token == "\\begin_inset") {
161 Inset * inset = readInset(lex, buf);
163 par.insertInset(par.size(), inset, font, change);
166 docstring line = lex.getDocString();
167 errorList.push_back(ErrorItem(_("Unknown Inset"), line,
168 par.id(), 0, par.size()));
170 } else if (token == "\\family") {
172 font.setLyXFamily(lex.getString());
173 } else if (token == "\\series") {
175 font.setLyXSeries(lex.getString());
176 } else if (token == "\\shape") {
178 font.setLyXShape(lex.getString());
179 } else if (token == "\\size") {
181 font.setLyXSize(lex.getString());
182 } else if (token == "\\lang") {
184 string const tok = lex.getString();
185 Language const * lang = languages.getLanguage(tok);
187 font.setLanguage(lang);
189 font.setLanguage(bp.language);
190 lex.printError("Unknown language `$$Token'");
192 } else if (token == "\\numeric") {
194 font.setNumber(font.setLyXMisc(lex.getString()));
195 } else if (token == "\\emph") {
197 font.setEmph(font.setLyXMisc(lex.getString()));
198 } else if (token == "\\bar") {
200 string const tok = lex.getString();
203 font.setUnderbar(Font::ON);
204 else if (tok == "no")
205 font.setUnderbar(Font::OFF);
206 else if (tok == "default")
207 font.setUnderbar(Font::INHERIT);
209 lex.printError("Unknown bar font flag "
211 } else if (token == "\\noun") {
213 font.setNoun(font.setLyXMisc(lex.getString()));
214 } else if (token == "\\color") {
216 font.setLyXColor(lex.getString());
217 } else if (token == "\\InsetSpace" || token == "\\SpecialChar") {
219 // Insets don't make sense in a free-spacing context! ---Kayvan
220 if (par.isFreeSpacing()) {
221 if (token == "\\InsetSpace")
222 par.insertChar(par.size(), ' ', font, change);
223 else if (lex.isOK()) {
225 string const next_token = lex.getString();
226 if (next_token == "\\-")
227 par.insertChar(par.size(), '-', font, change);
229 lex.printError("Token `$$Token' "
231 "paragraph layout!");
235 auto_ptr<Inset> inset;
236 if (token == "\\SpecialChar" )
237 inset.reset(new InsetSpecialChar);
239 inset.reset(new InsetSpace);
240 inset->read(buf, lex);
241 par.insertInset(par.size(), inset.release(),
244 } else if (token == "\\backslash") {
245 par.insertChar(par.size(), '\\', font, change);
246 } else if (token == "\\newline") {
247 auto_ptr<Inset> inset(new InsetNewline);
248 inset->read(buf, lex);
249 par.insertInset(par.size(), inset.release(), font, change);
250 } else if (token == "\\LyXTable") {
251 auto_ptr<Inset> inset(new InsetTabular(buf));
252 inset->read(buf, lex);
253 par.insertInset(par.size(), inset.release(), font, change);
254 } else if (token == "\\hfill") {
255 par.insertInset(par.size(), new InsetHFill, font, change);
256 } else if (token == "\\lyxline") {
257 par.insertInset(par.size(), new InsetLine, font, change);
258 } else if (token == "\\newpage") {
259 par.insertInset(par.size(), new InsetPagebreak, font, change);
260 } else if (token == "\\clearpage") {
261 par.insertInset(par.size(), new InsetClearPage, font, change);
262 } else if (token == "\\cleardoublepage") {
263 par.insertInset(par.size(), new InsetClearDoublePage, font, change);
264 } else if (token == "\\change_unchanged") {
265 change = Change(Change::UNCHANGED);
266 } else if (token == "\\change_inserted") {
268 std::istringstream is(lex.getString());
272 if (aid >= bp.author_map.size()) {
273 errorList.push_back(ErrorItem(_("Change tracking error"),
274 bformat(_("Unknown author index for insertion: %1$d\n"), aid),
275 par.id(), 0, par.size()));
276 change = Change(Change::UNCHANGED);
278 change = Change(Change::INSERTED, bp.author_map[aid], ct);
279 } else if (token == "\\change_deleted") {
281 std::istringstream is(lex.getString());
285 if (aid >= bp.author_map.size()) {
286 errorList.push_back(ErrorItem(_("Change tracking error"),
287 bformat(_("Unknown author index for deletion: %1$d\n"), aid),
288 par.id(), 0, par.size()));
289 change = Change(Change::UNCHANGED);
291 change = Change(Change::DELETED, bp.author_map[aid], ct);
294 errorList.push_back(ErrorItem(_("Unknown token"),
295 bformat(_("Unknown token: %1$s %2$s\n"), from_utf8(token),
297 par.id(), 0, par.size()));
302 void readParagraph(Buffer const & buf, Paragraph & par, Lexer & lex,
303 ErrorList & errorList)
306 string token = lex.getString();
308 Change change(Change::UNCHANGED);
311 readParToken(buf, par, lex, token, font, change, errorList);
314 token = lex.getString();
319 if (token == "\\end_layout") {
320 //Ok, paragraph finished
324 LYXERR(Debug::PARSER) << "Handling paragraph token: `"
325 << token << '\'' << endl;
326 if (token == "\\begin_layout" || token == "\\end_document"
327 || token == "\\end_inset" || token == "\\begin_deeper"
328 || token == "\\end_deeper") {
329 lex.pushToken(token);
330 lyxerr << "Paragraph ended in line "
331 << lex.getLineNo() << "\n"
332 << "Missing \\end_layout.\n";
336 // Final change goes to paragraph break:
337 par.setChange(par.size(), change);
339 // Initialize begin_of_body_ on load; redoParagraph maintains
340 par.setBeginOfBody();
347 bool Text::empty() const
349 return pars_.empty() || (pars_.size() == 1 && pars_[0].empty()
350 // FIXME: Should we consider the labeled type as empty too?
351 && pars_[0].layout()->labeltype == LABEL_NO_LABEL);
355 double Text::spacing(Buffer const & buffer,
356 Paragraph const & par) const
358 if (par.params().spacing().isDefault())
359 return buffer.params().spacing().getValue();
360 return par.params().spacing().getValue();
364 int Text::singleWidth(Buffer const & buffer, Paragraph const & par,
367 return singleWidth(par, pos, par.getChar(pos),
368 getFont(buffer, par, pos));
372 int Text::singleWidth(Paragraph const & par,
373 pos_type pos, char_type c, Font const & font) const
375 // The most common case is handled first (Asger)
376 if (isPrintable(c)) {
377 Language const * language = font.language();
378 if (language->rightToLeft()) {
379 if (language->lang() == "arabic_arabtex" ||
380 language->lang() == "arabic_arabi" ||
381 language->lang() == "farsi") {
382 if (Encodings::isComposeChar_arabic(c))
384 c = par.transformChar(c, pos);
385 } else if (language->lang() == "hebrew" &&
386 Encodings::isComposeChar_hebrew(c))
389 return theFontMetrics(font).width(c);
392 if (c == Paragraph::META_INSET)
393 return par.getInset(pos)->width();
395 return theFontMetrics(font).width(c);
399 int Text::leftMargin(Buffer const & buffer, int max_width, pit_type pit) const
401 BOOST_ASSERT(pit >= 0);
402 BOOST_ASSERT(pit < int(pars_.size()));
403 return leftMargin(buffer, max_width, pit, pars_[pit].size());
407 int Text::leftMargin(Buffer const & buffer, int max_width,
408 pit_type const pit, pos_type const pos) const
410 BOOST_ASSERT(pit >= 0);
411 BOOST_ASSERT(pit < int(pars_.size()));
412 Paragraph const & par = pars_[pit];
413 BOOST_ASSERT(pos >= 0);
414 BOOST_ASSERT(pos <= par.size());
415 //lyxerr << "Text::leftMargin: pit: " << pit << " pos: " << pos << endl;
416 TextClass const & tclass = buffer.params().getTextClass();
417 Layout_ptr const & layout = par.layout();
419 string parindent = layout->parindent;
423 if (isMainText(buffer))
424 l_margin += changebarMargin();
427 docstring leftm = from_utf8(tclass.leftmargin());
428 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm);
430 if (par.getDepth() != 0) {
431 // find the next level paragraph
432 pit_type newpar = outerHook(pit, pars_);
433 if (newpar != pit_type(pars_.size())) {
434 if (pars_[newpar].layout()->isEnvironment()) {
435 l_margin = leftMargin(buffer, max_width, newpar);
437 if (par.layout() == tclass.defaultLayout()) {
438 if (pars_[newpar].params().noindent())
441 parindent = pars_[newpar].layout()->parindent;
446 // This happens after sections in standard classes. The 1.3.x
447 // code compared depths too, but it does not seem necessary
449 if (par.layout() == tclass.defaultLayout()
450 && pit > 0 && pars_[pit - 1].layout()->nextnoindent)
453 Font const labelfont = getLabelFont(buffer, par);
454 FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
456 switch (layout->margintype) {
458 if (!layout->leftmargin.empty()) {
460 docstring leftm = from_utf8(layout->leftmargin);
461 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm);
463 if (!par.getLabelstring().empty()) {
465 docstring labin = from_utf8(layout->labelindent);
466 l_margin += labelfont_metrics.signedWidth(labin);
467 docstring labstr = par.getLabelstring();
468 l_margin += labelfont_metrics.width(labstr);
469 docstring labsep = from_utf8(layout->labelsep);
470 l_margin += labelfont_metrics.width(labsep);
474 case MARGIN_MANUAL: {
476 docstring labin = from_utf8(layout->labelindent);
477 l_margin += labelfont_metrics.signedWidth(labin);
478 // The width of an empty par, even with manual label, should be 0
479 if (!par.empty() && pos >= par.beginOfBody()) {
480 if (!par.getLabelWidthString().empty()) {
481 docstring labstr = par.getLabelWidthString();
482 l_margin += labelfont_metrics.width(labstr);
483 docstring labsep = from_utf8(layout->labelsep);
484 l_margin += labelfont_metrics.width(labsep);
490 case MARGIN_STATIC: {
492 docstring leftm = from_utf8(layout->leftmargin);
493 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm)
494 * 4 / (par.getDepth() + 4);
498 case MARGIN_FIRST_DYNAMIC:
499 if (layout->labeltype == LABEL_MANUAL) {
500 if (pos >= par.beginOfBody()) {
502 l_margin += labelfont_metrics.signedWidth(
503 from_utf8(layout->leftmargin));
506 l_margin += labelfont_metrics.signedWidth(
507 from_utf8(layout->labelindent));
510 // Special case to fix problems with
512 || (layout->labeltype == LABEL_STATIC
513 && layout->latextype == LATEX_ENVIRONMENT
514 && !isFirstInSequence(pit, pars_))) {
516 l_margin += labelfont_metrics.signedWidth(from_utf8(layout->leftmargin));
517 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
518 && layout->labeltype != LABEL_BIBLIO
519 && layout->labeltype !=
520 LABEL_CENTERED_TOP_ENVIRONMENT) {
521 l_margin += labelfont_metrics.signedWidth(from_utf8(layout->labelindent));
522 l_margin += labelfont_metrics.width(from_utf8(layout->labelsep));
523 l_margin += labelfont_metrics.width(par.getLabelstring());
527 case MARGIN_RIGHT_ADDRESS_BOX: {
529 // ok, a terrible hack. The left margin depends on the widest
530 // row in this paragraph.
531 RowList::iterator rit = par.rows().begin();
532 RowList::iterator end = par.rows().end();
533 // FIXME: This is wrong.
534 int minfill = max_width;
535 for ( ; rit != end; ++rit)
536 if (rit->fill() < minfill)
537 minfill = rit->fill();
538 l_margin += theFontMetrics(params.getFont()).signedWidth(layout->leftmargin);
541 // also wrong, but much shorter.
542 l_margin += max_width / 2;
547 if (!par.params().leftIndent().zero())
548 l_margin += par.params().leftIndent().inPixels(max_width);
552 if (par.params().align() == LYX_ALIGN_LAYOUT)
553 align = layout->align;
555 align = par.params().align();
557 // set the correct parindent
559 && (layout->labeltype == LABEL_NO_LABEL
560 || layout->labeltype == LABEL_TOP_ENVIRONMENT
561 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
562 || (layout->labeltype == LABEL_STATIC
563 && layout->latextype == LATEX_ENVIRONMENT
564 && !isFirstInSequence(pit, pars_)))
565 && align == LYX_ALIGN_BLOCK
566 && !par.params().noindent()
567 // in some insets, paragraphs are never indented
568 && !(par.inInset() && par.inInset()->neverIndent(buffer))
569 // display style insets are always centered, omit indentation
572 && par.getInset(pos)->display())
573 && (par.layout() != tclass.defaultLayout()
574 || buffer.params().paragraph_separation ==
575 BufferParams::PARSEP_INDENT))
577 docstring din = from_utf8(parindent);
578 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(din);
585 Color_color Text::backgroundColor() const
587 return Color_color(Color::color(background_color_));
591 void Text::breakParagraph(Cursor & cur, bool keep_layout)
593 BOOST_ASSERT(this == cur.text());
595 Paragraph & cpar = cur.paragraph();
596 pit_type cpit = cur.pit();
598 TextClass const & tclass = cur.buffer().params().getTextClass();
599 Layout_ptr const & layout = cpar.layout();
601 // this is only allowed, if the current paragraph is not empty
602 // or caption and if it has not the keepempty flag active
603 if (cur.lastpos() == 0 && !cpar.allowEmpty() &&
604 layout->labeltype != LABEL_SENSITIVE)
607 // a layout change may affect also the following paragraph
608 recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
610 // Always break behind a space
611 // It is better to erase the space (Dekel)
612 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
613 cpar.eraseChar(cur.pos(), cur.buffer().params().trackChanges);
615 // What should the layout for the new paragraph be?
616 int preserve_layout = 0;
620 preserve_layout = layout->isEnvironment();
622 // We need to remember this before we break the paragraph, because
623 // that invalidates the layout variable
624 bool sensitive = layout->labeltype == LABEL_SENSITIVE;
626 // we need to set this before we insert the paragraph.
627 bool const isempty = cpar.allowEmpty() && cpar.empty();
629 lyx::breakParagraph(cur.buffer().params(), paragraphs(), cpit,
630 cur.pos(), preserve_layout);
632 // After this, neither paragraph contains any rows!
635 pit_type next_par = cpit + 1;
637 // well this is the caption hack since one caption is really enough
640 // set to standard-layout
641 pars_[cpit].applyLayout(tclass.defaultLayout());
643 // set to standard-layout
644 pars_[next_par].applyLayout(tclass.defaultLayout());
647 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0)) {
648 if (!pars_[next_par].eraseChar(0, cur.buffer().params().trackChanges))
649 break; // the character couldn't be deleted physically due to change tracking
652 updateLabels(cur.buffer());
654 // A singlePar update is not enough in this case.
655 cur.updateFlags(Update::Force);
657 // This check is necessary. Otherwise the new empty paragraph will
658 // be deleted automatically. And it is more friendly for the user!
659 if (cur.pos() != 0 || isempty)
660 setCursor(cur, cur.pit() + 1, 0);
662 setCursor(cur, cur.pit(), 0);
666 // insert a character, moves all the following breaks in the
667 // same Paragraph one to the right and make a rebreak
668 void Text::insertChar(Cursor & cur, char_type c)
670 BOOST_ASSERT(this == cur.text());
671 BOOST_ASSERT(c != Paragraph::META_INSET);
673 recordUndo(cur, Undo::INSERT);
675 Buffer const & buffer = cur.buffer();
676 Paragraph & par = cur.paragraph();
677 // try to remove this
678 pit_type const pit = cur.pit();
680 bool const freeSpacing = par.layout()->free_spacing ||
683 if (lyxrc.auto_number) {
684 static docstring const number_operators = from_ascii("+-/*");
685 static docstring const number_unary_operators = from_ascii("+-");
686 static docstring const number_seperators = from_ascii(".,:");
688 if (current_font.number() == Font::ON) {
689 if (!isDigit(c) && !contains(number_operators, c) &&
690 !(contains(number_seperators, c) &&
692 cur.pos() != cur.lastpos() &&
693 getFont(buffer, par, cur.pos()).number() == Font::ON &&
694 getFont(buffer, par, cur.pos() - 1).number() == Font::ON)
696 number(cur); // Set current_font.number to OFF
697 } else if (isDigit(c) &&
698 real_current_font.isVisibleRightToLeft()) {
699 number(cur); // Set current_font.number to ON
701 if (cur.pos() != 0) {
702 char_type const c = par.getChar(cur.pos() - 1);
703 if (contains(number_unary_operators, c) &&
705 || par.isSeparator(cur.pos() - 2)
706 || par.isNewline(cur.pos() - 2))
708 setCharFont(buffer, pit, cur.pos() - 1, current_font);
709 } else if (contains(number_seperators, c)
711 && getFont(buffer, par, cur.pos() - 2).number() == Font::ON) {
712 setCharFont(buffer, pit, cur.pos() - 1, current_font);
718 // In Bidi text, we want spaces to be treated in a special way: spaces
719 // which are between words in different languages should get the
720 // paragraph's language; otherwise, spaces should keep the language
721 // they were originally typed in. This is only in effect while typing;
722 // after the text is already typed in, the user can always go back and
723 // explicitly set the language of a space as desired. But 99.9% of the
724 // time, what we're doing here is what the user actually meant.
726 // The following cases are the ones in which the language of the space
727 // should be changed to match that of the containing paragraph. In the
728 // depictions, lowercase is LTR, uppercase is RTL, underscore (_)
729 // represents a space, pipe (|) represents the cursor position (so the
730 // character before it is the one just typed in). The different cases
731 // are depicted logically (not visually), from left to right:
736 // Theoretically, there are other situations that we should, perhaps, deal
737 // with (e.g.: a|_A, A|_a). In practice, though, there really isn't any
738 // point (to understand why, just try to create this situation...).
740 if ((cur.pos() >= 2) && (par.isLineSeparator(cur.pos() - 1))) {
741 // get font in front and behind the space in question. But do NOT
742 // use getFont(cur.pos()) because the character c is not inserted yet
743 Font const & pre_space_font = getFont(buffer, par, cur.pos() - 2);
744 Font const & post_space_font = real_current_font;
745 bool pre_space_rtl = pre_space_font.isVisibleRightToLeft();
746 bool post_space_rtl = post_space_font.isVisibleRightToLeft();
748 if (pre_space_rtl != post_space_rtl) {
749 // Set the space's language to match the language of the
750 // adjacent character whose direction is the paragraph's
751 // direction; don't touch other properties of the font
752 Language const * lang =
753 (pre_space_rtl == par.isRightToLeftPar(buffer.params())) ?
754 pre_space_font.language() : post_space_font.language();
756 Font space_font = getFont(buffer, par, cur.pos() - 1);
757 space_font.setLanguage(lang);
758 par.setFont(cur.pos() - 1, space_font);
762 // Next check, if there will be two blanks together or a blank at
763 // the beginning of a paragraph.
764 // I decided to handle blanks like normal characters, the main
765 // difference are the special checks when calculating the row.fill
766 // (blank does not count at the end of a row) and the check here
768 // When the free-spacing option is set for the current layout,
769 // disable the double-space checking
770 if (!freeSpacing && isLineSeparatorChar(c)) {
771 if (cur.pos() == 0) {
772 static bool sent_space_message = false;
773 if (!sent_space_message) {
774 cur.message(_("You cannot insert a space at the "
775 "beginning of a paragraph. Please read the Tutorial."));
776 sent_space_message = true;
780 BOOST_ASSERT(cur.pos() > 0);
781 if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
782 && !par.isDeleted(cur.pos() - 1)) {
783 static bool sent_space_message = false;
784 if (!sent_space_message) {
785 cur.message(_("You cannot type two spaces this way. "
786 "Please read the Tutorial."));
787 sent_space_message = true;
793 par.insertChar(cur.pos(), c, current_font, cur.buffer().params().trackChanges);
794 checkBufferStructure(cur.buffer(), cur);
796 // cur.updateFlags(Update::Force);
797 setCursor(cur.top(), cur.pit(), cur.pos() + 1);
802 void Text::charInserted()
804 // Here we call finishUndo for every 20 characters inserted.
805 // This is from my experience how emacs does it. (Lgb)
806 static unsigned int counter;
816 // the cursor set functions have a special mechanism. When they
817 // realize, that you left an empty paragraph, they will delete it.
819 bool Text::cursorRightOneWord(Cursor & cur)
821 BOOST_ASSERT(this == cur.text());
825 if (old.pos() == old.lastpos() && old.pit() != old.lastpit()) {
829 // Advance through word.
830 while (old.pos() != old.lastpos() && old.paragraph().isLetter(old.pos()))
832 // Skip through trailing nonword stuff.
833 while (old.pos() != old.lastpos() && !old.paragraph().isLetter(old.pos()))
836 return setCursor(cur, old.pit(), old.pos());
840 bool Text::cursorLeftOneWord(Cursor & cur)
842 BOOST_ASSERT(this == cur.text());
846 if (old.pos() == 0 && old.pit() != 0) {
848 old.pos() = old.lastpos();
850 // Skip through initial nonword stuff.
851 while (old.pos() != 0 && !old.paragraph().isLetter(old.pos() - 1))
853 // Advance through word.
854 while (old.pos() != 0 && old.paragraph().isLetter(old.pos() - 1))
857 return setCursor(cur, old.pit(), old.pos());
861 void Text::selectWord(Cursor & cur, word_location loc)
863 BOOST_ASSERT(this == cur.text());
864 CursorSlice from = cur.top();
865 CursorSlice to = cur.top();
866 getWord(from, to, loc);
867 if (cur.top() != from)
868 setCursor(cur, from.pit(), from.pos());
872 setCursor(cur, to.pit(), to.pos());
877 // Select the word currently under the cursor when no
878 // selection is currently set
879 bool Text::selectWordWhenUnderCursor(Cursor & cur, word_location loc)
881 BOOST_ASSERT(this == cur.text());
884 selectWord(cur, loc);
885 return cur.selection();
889 void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
891 BOOST_ASSERT(this == cur.text());
893 if (!cur.selection())
896 recordUndoSelection(cur, Undo::ATOMIC);
898 pit_type begPit = cur.selectionBegin().pit();
899 pit_type endPit = cur.selectionEnd().pit();
901 pos_type begPos = cur.selectionBegin().pos();
902 pos_type endPos = cur.selectionEnd().pos();
904 // keep selection info, because endPos becomes invalid after the first loop
905 bool endsBeforeEndOfPar = (endPos < pars_[endPit].size());
907 // first, accept/reject changes within each individual paragraph (do not consider end-of-par)
909 for (pit_type pit = begPit; pit <= endPit; ++pit) {
910 pos_type parSize = pars_[pit].size();
912 // ignore empty paragraphs; otherwise, an assertion will fail for
913 // acceptChanges(bparams, 0, 0) or rejectChanges(bparams, 0, 0)
917 // do not consider first paragraph if the cursor starts at pos size()
918 if (pit == begPit && begPos == parSize)
921 // do not consider last paragraph if the cursor ends at pos 0
922 if (pit == endPit && endPos == 0)
923 break; // last iteration anyway
925 pos_type left = (pit == begPit ? begPos : 0);
926 pos_type right = (pit == endPit ? endPos : parSize);
929 pars_[pit].acceptChanges(cur.buffer().params(), left, right);
931 pars_[pit].rejectChanges(cur.buffer().params(), left, right);
935 // next, accept/reject imaginary end-of-par characters
937 for (pit_type pit = begPit; pit <= endPit; ++pit) {
938 pos_type pos = pars_[pit].size();
940 // skip if the selection ends before the end-of-par
941 if (pit == endPit && endsBeforeEndOfPar)
942 break; // last iteration anyway
944 // skip if this is not the last paragraph of the document
945 // note: the user should be able to accept/reject the par break of the last par!
946 if (pit == endPit && pit + 1 != int(pars_.size()))
947 break; // last iteration anway
950 if (pars_[pit].isInserted(pos)) {
951 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
952 } else if (pars_[pit].isDeleted(pos)) {
953 if (pit + 1 == int(pars_.size())) {
954 // we cannot remove a par break at the end of the last paragraph;
955 // instead, we mark it unchanged
956 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
958 mergeParagraph(cur.buffer().params(), pars_, pit);
964 if (pars_[pit].isDeleted(pos)) {
965 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
966 } else if (pars_[pit].isInserted(pos)) {
967 if (pit + 1 == int(pars_.size())) {
968 // we mark the par break at the end of the last paragraph unchanged
969 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
971 mergeParagraph(cur.buffer().params(), pars_, pit);
979 // finally, invoke the DEPM
981 deleteEmptyParagraphMechanism(begPit, endPit, cur.buffer().params().trackChanges);
986 cur.clearSelection();
987 setCursorIntern(cur, begPit, begPos);
988 cur.updateFlags(Update::Force);
989 updateLabels(cur.buffer());
993 void Text::acceptChanges(BufferParams const & bparams)
995 lyx::acceptChanges(pars_, bparams);
996 deleteEmptyParagraphMechanism(0, pars_.size() - 1, bparams.trackChanges);
1000 void Text::rejectChanges(BufferParams const & bparams)
1002 pit_type pars_size = static_cast<pit_type>(pars_.size());
1004 // first, reject changes within each individual paragraph
1005 // (do not consider end-of-par)
1006 for (pit_type pit = 0; pit < pars_size; ++pit) {
1007 if (!pars_[pit].empty()) // prevent assertion failure
1008 pars_[pit].rejectChanges(bparams, 0, pars_[pit].size());
1011 // next, reject imaginary end-of-par characters
1012 for (pit_type pit = 0; pit < pars_size; ++pit) {
1013 pos_type pos = pars_[pit].size();
1015 if (pars_[pit].isDeleted(pos)) {
1016 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1017 } else if (pars_[pit].isInserted(pos)) {
1018 if (pit == pars_size - 1) {
1019 // we mark the par break at the end of the last
1020 // paragraph unchanged
1021 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1023 mergeParagraph(bparams, pars_, pit);
1030 // finally, invoke the DEPM
1031 deleteEmptyParagraphMechanism(0, pars_size - 1, bparams.trackChanges);
1035 // Delete from cursor up to the end of the current or next word.
1036 void Text::deleteWordForward(Cursor & cur)
1038 BOOST_ASSERT(this == cur.text());
1039 if (cur.lastpos() == 0)
1043 cur.selection() = true;
1044 cursorRightOneWord(cur);
1046 cutSelection(cur, true, false);
1047 checkBufferStructure(cur.buffer(), cur);
1052 // Delete from cursor to start of current or prior word.
1053 void Text::deleteWordBackward(Cursor & cur)
1055 BOOST_ASSERT(this == cur.text());
1056 if (cur.lastpos() == 0)
1060 cur.selection() = true;
1061 cursorLeftOneWord(cur);
1063 cutSelection(cur, true, false);
1064 checkBufferStructure(cur.buffer(), cur);
1069 // Kill to end of line.
1070 void Text::deleteLineForward(Cursor & cur)
1072 BOOST_ASSERT(this == cur.text());
1073 if (cur.lastpos() == 0) {
1074 // Paragraph is empty, so we just go to the right
1078 cur.selection() = true; // to avoid deletion
1081 // What is this test for ??? (JMarc)
1082 if (!cur.selection())
1083 deleteWordForward(cur);
1085 cutSelection(cur, true, false);
1086 checkBufferStructure(cur.buffer(), cur);
1091 void Text::changeCase(Cursor & cur, Text::TextCase action)
1093 BOOST_ASSERT(this == cur.text());
1097 if (cur.selection()) {
1098 from = cur.selBegin();
1102 getWord(from, to, PARTIAL_WORD);
1103 cursorRightOneWord(cur);
1106 recordUndoSelection(cur, Undo::ATOMIC);
1108 pit_type begPit = from.pit();
1109 pit_type endPit = to.pit();
1111 pos_type begPos = from.pos();
1112 pos_type endPos = to.pos();
1114 bool const trackChanges = cur.buffer().params().trackChanges;
1116 pos_type right = 0; // needed after the for loop
1118 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1119 pos_type parSize = pars_[pit].size();
1121 pos_type pos = (pit == begPit ? begPos : 0);
1122 right = (pit == endPit ? endPos : parSize);
1124 // process sequences of modified characters; in change
1125 // tracking mode, this approach results in much better
1126 // usability than changing case on a char-by-char basis
1129 bool capitalize = true;
1131 for (; pos < right; ++pos) {
1132 char_type oldChar = pars_[pit].getChar(pos);
1133 char_type newChar = oldChar;
1135 // ignore insets and don't play with deleted text!
1136 if (oldChar != Paragraph::META_INSET && !pars_[pit].isDeleted(pos)) {
1138 case text_lowercase:
1139 newChar = lowercase(oldChar);
1141 case text_capitalization:
1143 newChar = uppercase(oldChar);
1147 case text_uppercase:
1148 newChar = uppercase(oldChar);
1153 if (!pars_[pit].isLetter(pos) || pars_[pit].isDeleted(pos)) {
1154 capitalize = true; // permit capitalization again
1157 if (oldChar != newChar) {
1161 if (oldChar == newChar || pos == right - 1) {
1162 if (oldChar != newChar) {
1163 pos++; // step behind the changing area
1165 int erasePos = pos - changes.size();
1166 for (size_t i = 0; i < changes.size(); i++) {
1167 pars_[pit].insertChar(pos, changes[i],
1168 pars_[pit].getFontSettings(cur.buffer().params(),
1171 if (!pars_[pit].eraseChar(erasePos, trackChanges)) {
1174 ++right; // expand selection
1182 // the selection may have changed due to logically-only deleted chars
1183 setCursor(cur, begPit, begPos);
1185 setCursor(cur, endPit, right);
1188 checkBufferStructure(cur.buffer(), cur);
1192 bool Text::handleBibitems(Cursor & cur)
1194 if (cur.paragraph().layout()->labeltype != LABEL_BIBLIO)
1196 // if a bibitem is deleted, merge with previous paragraph
1197 // if this is a bibliography item as well
1198 if (cur.pos() == 0) {
1199 BufferParams const & bufparams = cur.buffer().params();
1200 Paragraph const & par = cur.paragraph();
1201 Cursor prevcur = cur;
1202 if (cur.pit() > 0) {
1204 prevcur.pos() = prevcur.lastpos();
1206 Paragraph const & prevpar = prevcur.paragraph();
1207 if (cur.pit() > 0 && par.layout() == prevpar.layout()) {
1208 recordUndo(cur, Undo::ATOMIC, prevcur.pit());
1209 mergeParagraph(bufparams, cur.text()->paragraphs(),
1211 updateLabels(cur.buffer());
1212 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1213 cur.updateFlags(Update::Force);
1214 // if not, reset the paragraph to default
1216 cur.paragraph().layout(
1217 bufparams.getTextClass().defaultLayout());
1224 bool Text::erase(Cursor & cur)
1226 BOOST_ASSERT(this == cur.text());
1227 bool needsUpdate = false;
1228 Paragraph & par = cur.paragraph();
1230 if (cur.pos() != cur.lastpos()) {
1231 // this is the code for a normal delete, not pasting
1233 recordUndo(cur, Undo::DELETE);
1234 if(!par.eraseChar(cur.pos(), cur.buffer().params().trackChanges)) {
1235 // the character has been logically deleted only => skip it
1236 cur.top().forwardPos();
1238 checkBufferStructure(cur.buffer(), cur);
1241 if (cur.pit() == cur.lastpit())
1242 return dissolveInset(cur);
1244 if (!par.isMergedOnEndOfParDeletion(cur.buffer().params().trackChanges)) {
1245 par.setChange(cur.pos(), Change(Change::DELETED));
1249 setCursorIntern(cur, cur.pit() + 1, 0);
1250 needsUpdate = backspacePos0(cur);
1254 needsUpdate |= handleBibitems(cur);
1257 // Make sure the cursor is correct. Is this really needed?
1258 // No, not really... at least not here!
1259 cur.text()->setCursor(cur.top(), cur.pit(), cur.pos());
1260 checkBufferStructure(cur.buffer(), cur);
1267 bool Text::backspacePos0(Cursor & cur)
1269 BOOST_ASSERT(this == cur.text());
1273 bool needsUpdate = false;
1275 BufferParams const & bufparams = cur.buffer().params();
1276 TextClass const & tclass = bufparams.getTextClass();
1277 ParagraphList & plist = cur.text()->paragraphs();
1278 Paragraph const & par = cur.paragraph();
1279 Cursor prevcur = cur;
1281 prevcur.pos() = prevcur.lastpos();
1282 Paragraph const & prevpar = prevcur.paragraph();
1284 // is it an empty paragraph?
1285 if (cur.lastpos() == 0
1286 || (cur.lastpos() == 1 && par.isSeparator(0))) {
1287 recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
1288 plist.erase(boost::next(plist.begin(), cur.pit()));
1291 // is previous par empty?
1292 else if (prevcur.lastpos() == 0
1293 || (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
1294 recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
1295 plist.erase(boost::next(plist.begin(), prevcur.pit()));
1298 // Pasting is not allowed, if the paragraphs have different
1299 // layouts. I think it is a real bug of all other
1300 // word processors to allow it. It confuses the user.
1301 // Correction: Pasting is always allowed with standard-layout
1302 else if (par.layout() == prevpar.layout()
1303 || par.layout() == tclass.defaultLayout()) {
1304 recordUndo(cur, Undo::ATOMIC, prevcur.pit());
1305 mergeParagraph(bufparams, plist, prevcur.pit());
1310 updateLabels(cur.buffer());
1311 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1318 bool Text::backspace(Cursor & cur)
1320 BOOST_ASSERT(this == cur.text());
1321 bool needsUpdate = false;
1322 if (cur.pos() == 0) {
1324 return dissolveInset(cur);
1326 Paragraph & prev_par = pars_[cur.pit() - 1];
1328 if (!prev_par.isMergedOnEndOfParDeletion(cur.buffer().params().trackChanges)) {
1329 prev_par.setChange(prev_par.size(), Change(Change::DELETED));
1330 setCursorIntern(cur, cur.pit() - 1, prev_par.size());
1333 // The cursor is at the beginning of a paragraph, so
1334 // the backspace will collapse two paragraphs into one.
1335 needsUpdate = backspacePos0(cur);
1338 // this is the code for a normal backspace, not pasting
1340 recordUndo(cur, Undo::DELETE);
1341 // We used to do cursorLeftIntern() here, but it is
1342 // not a good idea since it triggers the auto-delete
1343 // mechanism. So we do a cursorLeftIntern()-lite,
1344 // without the dreaded mechanism. (JMarc)
1345 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1346 false, cur.boundary());
1347 cur.paragraph().eraseChar(cur.pos(), cur.buffer().params().trackChanges);
1348 checkBufferStructure(cur.buffer(), cur);
1351 if (cur.pos() == cur.lastpos())
1352 setCurrentFont(cur);
1354 needsUpdate |= handleBibitems(cur);
1356 // A singlePar update is not enough in this case.
1357 // cur.updateFlags(Update::Force);
1358 setCursor(cur.top(), cur.pit(), cur.pos());
1364 bool Text::dissolveInset(Cursor & cur) {
1365 BOOST_ASSERT(this == cur.text());
1367 if (isMainText(*cur.bv().buffer()) || cur.inset().nargs() != 1)
1370 recordUndoInset(cur);
1371 cur.selHandle(false);
1373 pos_type spos = cur.pos();
1374 pit_type spit = cur.pit();
1375 ParagraphList plist;
1376 if (cur.lastpit() != 0 || cur.lastpos() != 0)
1377 plist = paragraphs();
1379 // store cursor offset
1383 Buffer & b = cur.buffer();
1384 cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
1385 if (!plist.empty()) {
1386 // ERT paragraphs have the Language latex_language.
1387 // This is invalid outside of ERT, so we need to
1388 // change it to the buffer language.
1389 ParagraphList::iterator it = plist.begin();
1390 ParagraphList::iterator it_end = plist.end();
1391 for (; it != it_end; it++) {
1392 it->changeLanguage(b.params(), latex_language,
1396 pasteParagraphList(cur, plist, b.params().textclass,
1397 b.errorList("Paste"));
1399 cur.pit() = std::min(cur.lastpit(), spit);
1400 cur.pos() = std::min(cur.lastpos(), spos);
1402 cur.clearSelection();
1408 // only used for inset right now. should also be used for main text
1409 void Text::draw(PainterInfo & pi, int x, int y) const
1411 paintTextInset(*this, pi, x, y);
1415 // only used for inset right now. should also be used for main text
1416 void Text::drawSelection(PainterInfo & pi, int x, int) const
1418 Cursor & cur = pi.base.bv->cursor();
1419 if (!cur.selection())
1421 if (!ptr_cmp(cur.text(), this))
1424 LYXERR(Debug::DEBUG)
1425 << BOOST_CURRENT_FUNCTION
1426 << "draw selection at " << x
1429 DocIterator beg = cur.selectionBegin();
1430 DocIterator end = cur.selectionEnd();
1432 BufferView & bv = *pi.base.bv;
1434 // the selection doesn't touch the visible screen?
1435 if (bv_funcs::status(&bv, beg) == bv_funcs::CUR_BELOW
1436 || bv_funcs::status(&bv, end) == bv_funcs::CUR_ABOVE)
1439 TextMetrics const & tm = bv.textMetrics(this);
1440 ParagraphMetrics const & pm1 = tm.parMetrics(beg.pit());
1441 ParagraphMetrics const & pm2 = tm.parMetrics(end.pit());
1442 Row const & row1 = pm1.getRow(beg.pos(), beg.boundary());
1443 Row const & row2 = pm2.getRow(end.pos(), end.boundary());
1447 bool const clipAbove =
1448 (bv_funcs::status(&bv, beg) == bv_funcs::CUR_ABOVE);
1452 middleTop = bv_funcs::getPos(bv, beg, beg.boundary()).y_ + row1.descent();
1456 bool const clipBelow =
1457 (bv_funcs::status(&bv, end) == bv_funcs::CUR_BELOW);
1459 middleBottom = bv.workHeight();
1461 middleBottom = bv_funcs::getPos(bv, end, end.boundary()).y_ - row2.ascent();
1463 // start and end in the same line?
1464 if (!(clipAbove || clipBelow) && &row1 == &row2)
1465 // then only draw this row's selection
1466 drawRowSelection(pi, x, row1, beg, end, false, false);
1470 DocIterator begRowEnd = beg;
1471 begRowEnd.pos() = row1.endpos();
1472 begRowEnd.boundary(true);
1474 // draw upper rectangle
1475 drawRowSelection(pi, x, row1, beg, begRowEnd, false, true);
1478 if (middleTop < middleBottom) {
1479 // draw middle rectangle
1480 pi.pain.fillRectangle(x, middleTop,
1481 tm.width(), middleBottom - middleTop,
1487 DocIterator endRowBeg = end;
1488 endRowBeg.pos() = row2.pos();
1489 endRowBeg.boundary(false);
1491 // draw low rectangle
1492 drawRowSelection(pi, x, row2, endRowBeg, end, true, false);
1498 void Text::drawRowSelection(PainterInfo & pi, int x, Row const & row,
1499 DocIterator const & beg, DocIterator const & end,
1500 bool drawOnBegMargin, bool drawOnEndMargin) const
1502 BufferView & bv = *pi.base.bv;
1503 Buffer & buffer = *bv.buffer();
1504 TextMetrics const & tm = bv.textMetrics(this);
1505 DocIterator cur = beg;
1506 int x1 = cursorX(bv, beg.top(), beg.boundary());
1507 int x2 = cursorX(bv, end.top(), end.boundary());
1508 int y1 = bv_funcs::getPos(bv, cur, cur.boundary()).y_ - row.ascent();
1509 int y2 = y1 + row.height();
1512 if (drawOnBegMargin) {
1513 if (isRTL(buffer, beg.paragraph()))
1514 pi.pain.fillRectangle(x + x1, y1, tm.width() - x1, y2 - y1, Color::selection);
1516 pi.pain.fillRectangle(x, y1, x1, y2 - y1, Color::selection);
1519 if (drawOnEndMargin) {
1520 if (isRTL(buffer, beg.paragraph()))
1521 pi.pain.fillRectangle(x, y1, x2, y2 - y1, Color::selection);
1523 pi.pain.fillRectangle(x + x2, y1, tm.width() - x2, y2 - y1, Color::selection);
1526 // if we are on a boundary from the beginning, it's probably
1527 // a RTL boundary and we jump to the other side directly as this
1528 // segement is 0-size and confuses the logic below
1530 cur.boundary(false);
1532 // go through row and draw from RTL boundary to RTL boundary
1534 bool drawNow = false;
1536 // simplified cursorRight code below which does not
1537 // descend into insets and which does not go into the
1538 // next line. Compare the logic with the original cursorRight
1540 // if left of boundary -> just jump to right side
1541 // but for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
1542 if (cur.boundary()) {
1543 cur.boundary(false);
1544 } else if (isRTLBoundary(buffer, cur.paragraph(), cur.pos() + 1)) {
1545 // in front of RTL boundary -> Stay on this side of the boundary because:
1546 // ab|cDDEEFFghi -> abc|DDEEFFghi
1555 if (cur.pos() == row.endpos())
1560 // the previous segment was just drawn, now the next starts
1561 x1 = cursorX(bv, cur.top(), cur.boundary());
1564 if (!(cur < end) || drawNow) {
1565 x2 = cursorX(bv, cur.top(), cur.boundary());
1566 pi.pain.fillRectangle(x + min(x1,x2), y1, abs(x2 - x1), y2 - y1,
1569 // reset x1, so it is set again next round (which will be on the
1570 // right side of a boundary or at the selection end)
1578 bool Text::isLastRow(pit_type pit, Row const & row) const
1580 return row.endpos() >= pars_[pit].size()
1581 && pit + 1 == pit_type(paragraphs().size());
1585 bool Text::isFirstRow(pit_type pit, Row const & row) const
1587 return row.pos() == 0 && pit == 0;
1591 void Text::getWord(CursorSlice & from, CursorSlice & to,
1592 word_location const loc)
1594 Paragraph const & from_par = pars_[from.pit()];
1596 case WHOLE_WORD_STRICT:
1597 if (from.pos() == 0 || from.pos() == from_par.size()
1598 || !from_par.isLetter(from.pos())
1599 || !from_par.isLetter(from.pos() - 1)) {
1603 // no break here, we go to the next
1606 // If we are already at the beginning of a word, do nothing
1607 if (!from.pos() || !from_par.isLetter(from.pos() - 1))
1609 // no break here, we go to the next
1612 // always move the cursor to the beginning of previous word
1613 while (from.pos() && from_par.isLetter(from.pos() - 1))
1617 lyxerr << "Text::getWord: NEXT_WORD not implemented yet"
1621 // no need to move the 'from' cursor
1625 Paragraph & to_par = pars_[to.pit()];
1626 while (to.pos() < to_par.size() && to_par.isLetter(to.pos()))
1631 void Text::write(Buffer const & buf, std::ostream & os) const
1633 ParagraphList::const_iterator pit = paragraphs().begin();
1634 ParagraphList::const_iterator end = paragraphs().end();
1636 for (; pit != end; ++pit)
1637 pit->write(buf, os, buf.params(), dth);
1639 // Close begin_deeper
1640 for(; dth > 0; --dth)
1641 os << "\n\\end_deeper";
1645 bool Text::read(Buffer const & buf, Lexer & lex, ErrorList & errorList)
1647 depth_type depth = 0;
1649 while (lex.isOK()) {
1651 string const token = lex.getString();
1656 if (token == "\\end_inset")
1659 if (token == "\\end_body")
1662 if (token == "\\begin_body")
1665 if (token == "\\end_document")
1668 if (token == "\\begin_layout") {
1669 lex.pushToken(token);
1672 par.params().depth(depth);
1673 par.setFont(0, Font(Font::ALL_INHERIT, buf.params().language));
1674 pars_.push_back(par);
1676 // FIXME: goddamn InsetTabular makes us pass a Buffer
1678 lyx::readParagraph(buf, pars_.back(), lex, errorList);
1680 } else if (token == "\\begin_deeper") {
1682 } else if (token == "\\end_deeper") {
1684 lex.printError("\\end_deeper: " "depth is already null");
1689 lyxerr << "Handling unknown body token: `"
1690 << token << '\'' << endl;
1696 int Text::cursorX(BufferView const & bv, CursorSlice const & sl,
1697 bool boundary) const
1699 TextMetrics const & tm = bv.textMetrics(sl.text());
1700 pit_type const pit = sl.pit();
1701 Paragraph const & par = pars_[pit];
1702 ParagraphMetrics const & pm = tm.parMetrics(pit);
1703 if (pm.rows().empty())
1706 pos_type ppos = sl.pos();
1707 // Correct position in front of big insets
1708 bool const boundary_correction = ppos != 0 && boundary;
1709 if (boundary_correction)
1712 Row const & row = pm.getRow(sl.pos(), boundary);
1714 pos_type cursor_vpos = 0;
1716 Buffer const & buffer = *bv.buffer();
1717 RowMetrics const m = tm.computeRowMetrics(pit, row);
1720 bidi.computeTables(par, buffer, row);
1722 pos_type const row_pos = row.pos();
1723 pos_type const end = row.endpos();
1724 // Spaces at logical line breaks in bidi text must be skipped during
1725 // cursor positioning. However, they may appear visually in the middle
1726 // of a row; they must be skipped, wherever they are...
1727 // * logically "abc_[HEBREW_\nHEBREW]"
1728 // * visually "abc_[_WERBEH\nWERBEH]"
1729 pos_type skipped_sep_vpos = -1;
1732 cursor_vpos = row_pos;
1733 else if (ppos >= end)
1734 cursor_vpos = isRTL(buffer, par) ? row_pos : end;
1735 else if (ppos > row_pos && ppos >= end)
1736 // Place cursor after char at (logical) position pos - 1
1737 cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
1738 ? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
1740 // Place cursor before char at (logical) position ppos
1741 cursor_vpos = (bidi.level(ppos) % 2 == 0)
1742 ? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
1744 pos_type body_pos = par.beginOfBody();
1746 (body_pos > end || !par.isLineSeparator(body_pos - 1)))
1749 // Use font span to speed things up, see below
1752 FontMetrics const & labelfm = theFontMetrics(
1753 getLabelFont(buffer, par));
1755 // If the last logical character is a separator, skip it, unless
1756 // it's in the last row of a paragraph; see skipped_sep_vpos declaration
1757 if (end > 0 && end < par.size() && par.isSeparator(end - 1))
1758 skipped_sep_vpos = bidi.log2vis(end - 1);
1760 for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
1761 // Skip the separator which is at the logical end of the row
1762 if (vpos == skipped_sep_vpos)
1764 pos_type pos = bidi.vis2log(vpos);
1765 if (body_pos > 0 && pos == body_pos - 1) {
1767 docstring const lsep = from_utf8(par.layout()->labelsep);
1768 x += m.label_hfill + labelfm.width(lsep);
1769 if (par.isLineSeparator(body_pos - 1))
1770 x -= singleWidth(buffer, par, body_pos - 1);
1773 // Use font span to speed things up, see above
1774 if (pos < font_span.first || pos > font_span.last) {
1775 font_span = par.fontSpan(pos);
1776 font = getFont(buffer, par, pos);
1779 x += singleWidth(par, pos, par.getChar(pos), font);
1781 if (par.hfillExpansion(row, pos))
1782 x += (pos >= body_pos) ? m.hfill : m.label_hfill;
1783 else if (par.isSeparator(pos) && pos >= body_pos)
1787 // see correction above
1788 if (boundary_correction) {
1789 if (isRTL(buffer, sl, boundary))
1790 x -= singleWidth(buffer, par, ppos);
1792 x += singleWidth(buffer, par, ppos);
1799 int Text::cursorY(BufferView const & bv, CursorSlice const & sl, bool boundary) const
1801 //lyxerr << "Text::cursorY: boundary: " << boundary << std::endl;
1802 ParagraphMetrics const & pm = bv.parMetrics(this, sl.pit());
1803 if (pm.rows().empty())
1807 h -= bv.parMetrics(this, 0).rows()[0].ascent();
1808 for (pit_type pit = 0; pit < sl.pit(); ++pit) {
1809 h += bv.parMetrics(this, pit).height();
1812 if (pos && boundary)
1814 size_t const rend = pm.pos2row(pos);
1815 for (size_t rit = 0; rit != rend; ++rit)
1816 h += pm.rows()[rit].height();
1817 h += pm.rows()[rend].ascent();
1822 // Returns the current font and depth as a message.
1823 docstring Text::currentState(Cursor & cur)
1825 BOOST_ASSERT(this == cur.text());
1826 Buffer & buf = cur.buffer();
1827 Paragraph const & par = cur.paragraph();
1828 odocstringstream os;
1830 if (buf.params().trackChanges)
1831 os << _("[Change Tracking] ");
1833 Change change = par.lookupChange(cur.pos());
1835 if (change.type != Change::UNCHANGED) {
1836 Author const & a = buf.params().authors().get(change.author);
1837 os << _("Change: ") << a.name();
1838 if (!a.email().empty())
1839 os << " (" << a.email() << ")";
1840 // FIXME ctime is english, we should translate that
1841 os << _(" at ") << ctime(&change.changetime);
1845 // I think we should only show changes from the default
1847 // No, from the document font (MV)
1848 Font font = real_current_font;
1849 font.reduce(buf.params().getFont());
1851 os << bformat(_("Font: %1$s"), font.stateText(&buf.params()));
1853 // The paragraph depth
1854 int depth = cur.paragraph().getDepth();
1856 os << bformat(_(", Depth: %1$d"), depth);
1858 // The paragraph spacing, but only if different from
1860 Spacing const & spacing = par.params().spacing();
1861 if (!spacing.isDefault()) {
1862 os << _(", Spacing: ");
1863 switch (spacing.getSpace()) {
1864 case Spacing::Single:
1867 case Spacing::Onehalf:
1870 case Spacing::Double:
1873 case Spacing::Other:
1874 os << _("Other (") << from_ascii(spacing.getValueAsString()) << ')';
1876 case Spacing::Default:
1877 // should never happen, do nothing
1882 #ifdef DEVEL_VERSION
1883 os << _(", Inset: ") << &cur.inset();
1884 os << _(", Paragraph: ") << cur.pit();
1885 os << _(", Id: ") << par.id();
1886 os << _(", Position: ") << cur.pos();
1887 // FIXME: Why is the check for par.size() needed?
1888 // We are called with cur.pos() == par.size() quite often.
1889 if (!par.empty() && cur.pos() < par.size()) {
1890 // Force output of code point, not character
1891 size_t const c = par.getChar(cur.pos());
1892 os << _(", Char: 0x") << std::hex << c;
1894 os << _(", Boundary: ") << cur.boundary();
1895 // Row & row = cur.textRow();
1896 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
1902 docstring Text::getPossibleLabel(Cursor & cur) const
1904 pit_type pit = cur.pit();
1906 Layout_ptr layout = pars_[pit].layout();
1909 docstring par_text = pars_[pit].asString(cur.buffer(), false);
1910 for (int i = 0; i < lyxrc.label_init_length; ++i) {
1911 if (par_text.empty())
1914 par_text = split(par_text, head, ' ');
1915 // Is it legal to use spaces in labels ?
1921 // No need for a prefix if the user said so.
1922 if (lyxrc.label_init_length <= 0)
1925 // Will contain the label type.
1928 // For section, subsection, etc...
1929 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
1930 Layout_ptr const & layout2 = pars_[pit - 1].layout();
1931 if (layout2->latextype != LATEX_PARAGRAPH) {
1936 if (layout->latextype != LATEX_PARAGRAPH)
1937 name = from_ascii(layout->latexname());
1939 // for captions, we just take the caption type
1940 Inset * caption_inset = cur.innerInsetOfType(Inset::CAPTION_CODE);
1942 name = from_ascii(static_cast<InsetCaption *>(caption_inset)->type());
1944 // If none of the above worked, we'll see if we're inside various
1945 // types of insets and take our abbreviation from them.
1947 Inset::Code const codes[] = {
1952 for (unsigned int i = 0; i < (sizeof codes / sizeof codes[0]); ++i) {
1953 Inset * float_inset = cur.innerInsetOfType(codes[i]);
1955 name = float_inset->name();
1961 // Create a correct prefix for prettyref
1962 if (name == "theorem")
1963 name = from_ascii("thm");
1964 else if (name == "Foot")
1965 name = from_ascii("fn");
1966 else if (name == "listing")
1967 name = from_ascii("lst");
1970 text = name.substr(0, 3) + ':' + text;
1976 void Text::setCursorFromCoordinates(Cursor & cur, int const x, int const y)
1978 BOOST_ASSERT(this == cur.text());
1979 pit_type pit = getPitNearY(cur.bv(), y);
1981 TextMetrics const & tm = cur.bv().textMetrics(this);
1982 ParagraphMetrics const & pm = tm.parMetrics(pit);
1984 int yy = cur.bv().coordCache().get(this, pit).y_ - pm.ascent();
1985 LYXERR(Debug::DEBUG)
1986 << BOOST_CURRENT_FUNCTION
1990 << " yy: " << yy << endl;
1993 BOOST_ASSERT(pm.rows().size());
1994 for (; r < int(pm.rows().size()) - 1; ++r) {
1995 Row const & row = pm.rows()[r];
1996 if (int(yy + row.height()) > y)
2001 Row const & row = pm.rows()[r];
2003 LYXERR(Debug::DEBUG)
2004 << BOOST_CURRENT_FUNCTION
2006 << " from pos: " << row.pos()
2011 pos_type const pos = row.pos()
2012 + tm.getColumnNearX(pit, row, xx, bound);
2014 LYXERR(Debug::DEBUG)
2015 << BOOST_CURRENT_FUNCTION
2016 << ": setting cursor pit: " << pit
2020 setCursor(cur, pit, pos, true, bound);
2021 // remember new position.
2026 void Text::charsTranspose(Cursor & cur)
2028 BOOST_ASSERT(this == cur.text());
2030 pos_type pos = cur.pos();
2032 // If cursor is at beginning or end of paragraph, do nothing.
2033 if (pos == cur.lastpos() || pos == 0)
2036 Paragraph & par = cur.paragraph();
2038 // Get the positions of the characters to be transposed.
2039 pos_type pos1 = pos - 1;
2040 pos_type pos2 = pos;
2042 // In change tracking mode, ignore deleted characters.
2043 while (pos2 < cur.lastpos() && par.isDeleted(pos2))
2045 if (pos2 == cur.lastpos())
2048 while (pos1 >= 0 && par.isDeleted(pos1))
2053 // Don't do anything if one of the "characters" is not regular text.
2054 if (par.isInset(pos1) || par.isInset(pos2))
2057 // Store the characters to be transposed (including font information).
2058 char_type char1 = par.getChar(pos1);
2060 par.getFontSettings(cur.buffer().params(), pos1);
2062 char_type char2 = par.getChar(pos2);
2064 par.getFontSettings(cur.buffer().params(), pos2);
2066 // And finally, we are ready to perform the transposition.
2067 // Track the changes if Change Tracking is enabled.
2068 bool const trackChanges = cur.buffer().params().trackChanges;
2072 par.eraseChar(pos2, trackChanges);
2073 par.eraseChar(pos1, trackChanges);
2074 par.insertChar(pos1, char2, font2, trackChanges);
2075 par.insertChar(pos2, char1, font1, trackChanges);
2077 checkBufferStructure(cur.buffer(), cur);
2079 // After the transposition, move cursor to after the transposition.
2080 setCursor(cur, cur.pit(), pos2);