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();
348 double Text::spacing(Buffer const & buffer,
349 Paragraph const & par) const
351 if (par.params().spacing().isDefault())
352 return buffer.params().spacing().getValue();
353 return par.params().spacing().getValue();
357 int Text::singleWidth(Buffer const & buffer, Paragraph const & par,
360 return singleWidth(par, pos, par.getChar(pos),
361 getFont(buffer, par, pos));
365 int Text::singleWidth(Paragraph const & par,
366 pos_type pos, char_type c, Font const & font) const
368 // The most common case is handled first (Asger)
369 if (isPrintable(c)) {
370 Language const * language = font.language();
371 if (language->rightToLeft()) {
372 if (language->lang() == "arabic_arabtex" ||
373 language->lang() == "arabic_arabi" ||
374 language->lang() == "farsi") {
375 if (Encodings::isComposeChar_arabic(c))
377 c = par.transformChar(c, pos);
378 } else if (language->lang() == "hebrew" &&
379 Encodings::isComposeChar_hebrew(c))
382 return theFontMetrics(font).width(c);
385 if (c == Paragraph::META_INSET)
386 return par.getInset(pos)->width();
388 return theFontMetrics(font).width(c);
392 int Text::leftMargin(Buffer const & buffer, int max_width, pit_type pit) const
394 BOOST_ASSERT(pit >= 0);
395 BOOST_ASSERT(pit < int(pars_.size()));
396 return leftMargin(buffer, max_width, pit, pars_[pit].size());
400 int Text::leftMargin(Buffer const & buffer, int max_width,
401 pit_type const pit, pos_type const pos) const
403 BOOST_ASSERT(pit >= 0);
404 BOOST_ASSERT(pit < int(pars_.size()));
405 Paragraph const & par = pars_[pit];
406 BOOST_ASSERT(pos >= 0);
407 BOOST_ASSERT(pos <= par.size());
408 //lyxerr << "Text::leftMargin: pit: " << pit << " pos: " << pos << endl;
409 TextClass const & tclass = buffer.params().getTextClass();
410 Layout_ptr const & layout = par.layout();
412 string parindent = layout->parindent;
416 if (isMainText(buffer))
417 l_margin += changebarMargin();
420 docstring leftm = from_utf8(tclass.leftmargin());
421 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm);
423 if (par.getDepth() != 0) {
424 // find the next level paragraph
425 pit_type newpar = outerHook(pit, pars_);
426 if (newpar != pit_type(pars_.size())) {
427 if (pars_[newpar].layout()->isEnvironment()) {
428 l_margin = leftMargin(buffer, max_width, newpar);
430 if (par.layout() == tclass.defaultLayout()) {
431 if (pars_[newpar].params().noindent())
434 parindent = pars_[newpar].layout()->parindent;
439 // This happens after sections in standard classes. The 1.3.x
440 // code compared depths too, but it does not seem necessary
442 if (par.layout() == tclass.defaultLayout()
443 && pit > 0 && pars_[pit - 1].layout()->nextnoindent)
446 Font const labelfont = getLabelFont(buffer, par);
447 FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
449 switch (layout->margintype) {
451 if (!layout->leftmargin.empty()) {
453 docstring leftm = from_utf8(layout->leftmargin);
454 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm);
456 if (!par.getLabelstring().empty()) {
458 docstring labin = from_utf8(layout->labelindent);
459 l_margin += labelfont_metrics.signedWidth(labin);
460 docstring labstr = par.getLabelstring();
461 l_margin += labelfont_metrics.width(labstr);
462 docstring labsep = from_utf8(layout->labelsep);
463 l_margin += labelfont_metrics.width(labsep);
467 case MARGIN_MANUAL: {
469 docstring labin = from_utf8(layout->labelindent);
470 l_margin += labelfont_metrics.signedWidth(labin);
471 // The width of an empty par, even with manual label, should be 0
472 if (!par.empty() && pos >= par.beginOfBody()) {
473 if (!par.getLabelWidthString().empty()) {
474 docstring labstr = par.getLabelWidthString();
475 l_margin += labelfont_metrics.width(labstr);
476 docstring labsep = from_utf8(layout->labelsep);
477 l_margin += labelfont_metrics.width(labsep);
483 case MARGIN_STATIC: {
485 docstring leftm = from_utf8(layout->leftmargin);
486 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm)
487 * 4 / (par.getDepth() + 4);
491 case MARGIN_FIRST_DYNAMIC:
492 if (layout->labeltype == LABEL_MANUAL) {
493 if (pos >= par.beginOfBody()) {
495 l_margin += labelfont_metrics.signedWidth(
496 from_utf8(layout->leftmargin));
499 l_margin += labelfont_metrics.signedWidth(
500 from_utf8(layout->labelindent));
503 // Special case to fix problems with
505 || (layout->labeltype == LABEL_STATIC
506 && layout->latextype == LATEX_ENVIRONMENT
507 && !isFirstInSequence(pit, pars_))) {
509 l_margin += labelfont_metrics.signedWidth(from_utf8(layout->leftmargin));
510 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
511 && layout->labeltype != LABEL_BIBLIO
512 && layout->labeltype !=
513 LABEL_CENTERED_TOP_ENVIRONMENT) {
514 l_margin += labelfont_metrics.signedWidth(from_utf8(layout->labelindent));
515 l_margin += labelfont_metrics.width(from_utf8(layout->labelsep));
516 l_margin += labelfont_metrics.width(par.getLabelstring());
520 case MARGIN_RIGHT_ADDRESS_BOX: {
522 // ok, a terrible hack. The left margin depends on the widest
523 // row in this paragraph.
524 RowList::iterator rit = par.rows().begin();
525 RowList::iterator end = par.rows().end();
526 // FIXME: This is wrong.
527 int minfill = max_width;
528 for ( ; rit != end; ++rit)
529 if (rit->fill() < minfill)
530 minfill = rit->fill();
531 l_margin += theFontMetrics(params.getFont()).signedWidth(layout->leftmargin);
534 // also wrong, but much shorter.
535 l_margin += max_width / 2;
540 if (!par.params().leftIndent().zero())
541 l_margin += par.params().leftIndent().inPixels(max_width);
545 if (par.params().align() == LYX_ALIGN_LAYOUT)
546 align = layout->align;
548 align = par.params().align();
550 // set the correct parindent
552 && (layout->labeltype == LABEL_NO_LABEL
553 || layout->labeltype == LABEL_TOP_ENVIRONMENT
554 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
555 || (layout->labeltype == LABEL_STATIC
556 && layout->latextype == LATEX_ENVIRONMENT
557 && !isFirstInSequence(pit, pars_)))
558 && align == LYX_ALIGN_BLOCK
559 && !par.params().noindent()
560 // in some insets, paragraphs are never indented
561 && !(par.inInset() && par.inInset()->neverIndent(buffer))
562 // display style insets are always centered, omit indentation
565 && par.getInset(pos)->display())
566 && (par.layout() != tclass.defaultLayout()
567 || buffer.params().paragraph_separation ==
568 BufferParams::PARSEP_INDENT))
570 docstring din = from_utf8(parindent);
571 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(din);
578 Color_color Text::backgroundColor() const
580 return Color_color(Color::color(background_color_));
584 void Text::breakParagraph(Cursor & cur, bool keep_layout)
586 BOOST_ASSERT(this == cur.text());
588 Paragraph & cpar = cur.paragraph();
589 pit_type cpit = cur.pit();
591 TextClass const & tclass = cur.buffer().params().getTextClass();
592 Layout_ptr const & layout = cpar.layout();
594 // this is only allowed, if the current paragraph is not empty
595 // or caption and if it has not the keepempty flag active
596 if (cur.lastpos() == 0 && !cpar.allowEmpty() &&
597 layout->labeltype != LABEL_SENSITIVE)
600 // a layout change may affect also the following paragraph
601 recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
603 // Always break behind a space
604 // It is better to erase the space (Dekel)
605 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
606 cpar.eraseChar(cur.pos(), cur.buffer().params().trackChanges);
608 // What should the layout for the new paragraph be?
609 int preserve_layout = 0;
613 preserve_layout = layout->isEnvironment();
615 // We need to remember this before we break the paragraph, because
616 // that invalidates the layout variable
617 bool sensitive = layout->labeltype == LABEL_SENSITIVE;
619 // we need to set this before we insert the paragraph.
620 bool const isempty = cpar.allowEmpty() && cpar.empty();
622 lyx::breakParagraph(cur.buffer().params(), paragraphs(), cpit,
623 cur.pos(), preserve_layout);
625 // After this, neither paragraph contains any rows!
628 pit_type next_par = cpit + 1;
630 // well this is the caption hack since one caption is really enough
633 // set to standard-layout
634 pars_[cpit].applyLayout(tclass.defaultLayout());
636 // set to standard-layout
637 pars_[next_par].applyLayout(tclass.defaultLayout());
640 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0)) {
641 if (!pars_[next_par].eraseChar(0, cur.buffer().params().trackChanges))
642 break; // the character couldn't be deleted physically due to change tracking
645 updateLabels(cur.buffer());
647 // A singlePar update is not enough in this case.
648 cur.updateFlags(Update::Force);
650 // This check is necessary. Otherwise the new empty paragraph will
651 // be deleted automatically. And it is more friendly for the user!
652 if (cur.pos() != 0 || isempty)
653 setCursor(cur, cur.pit() + 1, 0);
655 setCursor(cur, cur.pit(), 0);
659 // insert a character, moves all the following breaks in the
660 // same Paragraph one to the right and make a rebreak
661 void Text::insertChar(Cursor & cur, char_type c)
663 BOOST_ASSERT(this == cur.text());
664 BOOST_ASSERT(c != Paragraph::META_INSET);
666 recordUndo(cur, Undo::INSERT);
668 Buffer const & buffer = cur.buffer();
669 Paragraph & par = cur.paragraph();
670 // try to remove this
671 pit_type const pit = cur.pit();
673 bool const freeSpacing = par.layout()->free_spacing ||
676 if (lyxrc.auto_number) {
677 static docstring const number_operators = from_ascii("+-/*");
678 static docstring const number_unary_operators = from_ascii("+-");
679 static docstring const number_seperators = from_ascii(".,:");
681 if (current_font.number() == Font::ON) {
682 if (!isDigit(c) && !contains(number_operators, c) &&
683 !(contains(number_seperators, c) &&
685 cur.pos() != cur.lastpos() &&
686 getFont(buffer, par, cur.pos()).number() == Font::ON &&
687 getFont(buffer, par, cur.pos() - 1).number() == Font::ON)
689 number(cur); // Set current_font.number to OFF
690 } else if (isDigit(c) &&
691 real_current_font.isVisibleRightToLeft()) {
692 number(cur); // Set current_font.number to ON
694 if (cur.pos() != 0) {
695 char_type const c = par.getChar(cur.pos() - 1);
696 if (contains(number_unary_operators, c) &&
698 || par.isSeparator(cur.pos() - 2)
699 || par.isNewline(cur.pos() - 2))
701 setCharFont(buffer, pit, cur.pos() - 1, current_font);
702 } else if (contains(number_seperators, c)
704 && getFont(buffer, par, cur.pos() - 2).number() == Font::ON) {
705 setCharFont(buffer, pit, cur.pos() - 1, current_font);
711 // In Bidi text, we want spaces to be treated in a special way: spaces
712 // which are between words in different languages should get the
713 // paragraph's language; otherwise, spaces should keep the language
714 // they were originally typed in. This is only in effect while typing;
715 // after the text is already typed in, the user can always go back and
716 // explicitly set the language of a space as desired. But 99.9% of the
717 // time, what we're doing here is what the user actually meant.
719 // The following cases are the ones in which the language of the space
720 // should be changed to match that of the containing paragraph. In the
721 // depictions, lowercase is LTR, uppercase is RTL, underscore (_)
722 // represents a space, pipe (|) represents the cursor position (so the
723 // character before it is the one just typed in). The different cases
724 // are depicted logically (not visually), from left to right:
729 // Theoretically, there are other situations that we should, perhaps, deal
730 // with (e.g.: a|_A, A|_a). In practice, though, there really isn't any
731 // point (to understand why, just try to create this situation...).
733 if ((cur.pos() >= 2) && (par.isLineSeparator(cur.pos() - 1))) {
734 // get font in front and behind the space in question. But do NOT
735 // use getFont(cur.pos()) because the character c is not inserted yet
736 Font const & pre_space_font = getFont(buffer, par, cur.pos() - 2);
737 Font const & post_space_font = real_current_font;
738 bool pre_space_rtl = pre_space_font.isVisibleRightToLeft();
739 bool post_space_rtl = post_space_font.isVisibleRightToLeft();
741 if (pre_space_rtl != post_space_rtl) {
742 // Set the space's language to match the language of the
743 // adjacent character whose direction is the paragraph's
744 // direction; don't touch other properties of the font
745 Language const * lang =
746 (pre_space_rtl == par.isRightToLeftPar(buffer.params())) ?
747 pre_space_font.language() : post_space_font.language();
749 Font space_font = getFont(buffer, par, cur.pos() - 1);
750 space_font.setLanguage(lang);
751 par.setFont(cur.pos() - 1, space_font);
755 // Next check, if there will be two blanks together or a blank at
756 // the beginning of a paragraph.
757 // I decided to handle blanks like normal characters, the main
758 // difference are the special checks when calculating the row.fill
759 // (blank does not count at the end of a row) and the check here
761 // When the free-spacing option is set for the current layout,
762 // disable the double-space checking
763 if (!freeSpacing && isLineSeparatorChar(c)) {
764 if (cur.pos() == 0) {
765 static bool sent_space_message = false;
766 if (!sent_space_message) {
767 cur.message(_("You cannot insert a space at the "
768 "beginning of a paragraph. Please read the Tutorial."));
769 sent_space_message = true;
773 BOOST_ASSERT(cur.pos() > 0);
774 if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
775 && !par.isDeleted(cur.pos() - 1)) {
776 static bool sent_space_message = false;
777 if (!sent_space_message) {
778 cur.message(_("You cannot type two spaces this way. "
779 "Please read the Tutorial."));
780 sent_space_message = true;
786 par.insertChar(cur.pos(), c, current_font, cur.buffer().params().trackChanges);
787 checkBufferStructure(cur.buffer(), cur);
789 // cur.updateFlags(Update::Force);
790 setCursor(cur.top(), cur.pit(), cur.pos() + 1);
795 void Text::charInserted()
797 // Here we call finishUndo for every 20 characters inserted.
798 // This is from my experience how emacs does it. (Lgb)
799 static unsigned int counter;
809 // the cursor set functions have a special mechanism. When they
810 // realize, that you left an empty paragraph, they will delete it.
812 bool Text::cursorRightOneWord(Cursor & cur)
814 BOOST_ASSERT(this == cur.text());
818 if (old.pos() == old.lastpos() && old.pit() != old.lastpit()) {
822 // Advance through word.
823 while (old.pos() != old.lastpos() && old.paragraph().isLetter(old.pos()))
825 // Skip through trailing nonword stuff.
826 while (old.pos() != old.lastpos() && !old.paragraph().isLetter(old.pos()))
829 return setCursor(cur, old.pit(), old.pos());
833 bool Text::cursorLeftOneWord(Cursor & cur)
835 BOOST_ASSERT(this == cur.text());
839 if (old.pos() == 0 && old.pit() != 0) {
841 old.pos() = old.lastpos();
843 // Skip through initial nonword stuff.
844 while (old.pos() != 0 && !old.paragraph().isLetter(old.pos() - 1))
846 // Advance through word.
847 while (old.pos() != 0 && old.paragraph().isLetter(old.pos() - 1))
850 return setCursor(cur, old.pit(), old.pos());
854 void Text::selectWord(Cursor & cur, word_location loc)
856 BOOST_ASSERT(this == cur.text());
857 CursorSlice from = cur.top();
858 CursorSlice to = cur.top();
859 getWord(from, to, loc);
860 if (cur.top() != from)
861 setCursor(cur, from.pit(), from.pos());
865 setCursor(cur, to.pit(), to.pos());
870 // Select the word currently under the cursor when no
871 // selection is currently set
872 bool Text::selectWordWhenUnderCursor(Cursor & cur, word_location loc)
874 BOOST_ASSERT(this == cur.text());
877 selectWord(cur, loc);
878 return cur.selection();
882 void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
884 BOOST_ASSERT(this == cur.text());
886 if (!cur.selection())
889 recordUndoSelection(cur, Undo::ATOMIC);
891 pit_type begPit = cur.selectionBegin().pit();
892 pit_type endPit = cur.selectionEnd().pit();
894 pos_type begPos = cur.selectionBegin().pos();
895 pos_type endPos = cur.selectionEnd().pos();
897 // keep selection info, because endPos becomes invalid after the first loop
898 bool endsBeforeEndOfPar = (endPos < pars_[endPit].size());
900 // first, accept/reject changes within each individual paragraph (do not consider end-of-par)
902 for (pit_type pit = begPit; pit <= endPit; ++pit) {
903 pos_type parSize = pars_[pit].size();
905 // ignore empty paragraphs; otherwise, an assertion will fail for
906 // acceptChanges(bparams, 0, 0) or rejectChanges(bparams, 0, 0)
910 // do not consider first paragraph if the cursor starts at pos size()
911 if (pit == begPit && begPos == parSize)
914 // do not consider last paragraph if the cursor ends at pos 0
915 if (pit == endPit && endPos == 0)
916 break; // last iteration anyway
918 pos_type left = (pit == begPit ? begPos : 0);
919 pos_type right = (pit == endPit ? endPos : parSize);
922 pars_[pit].acceptChanges(cur.buffer().params(), left, right);
924 pars_[pit].rejectChanges(cur.buffer().params(), left, right);
928 // next, accept/reject imaginary end-of-par characters
930 for (pit_type pit = begPit; pit <= endPit; ++pit) {
931 pos_type pos = pars_[pit].size();
933 // skip if the selection ends before the end-of-par
934 if (pit == endPit && endsBeforeEndOfPar)
935 break; // last iteration anyway
937 // skip if this is not the last paragraph of the document
938 // note: the user should be able to accept/reject the par break of the last par!
939 if (pit == endPit && pit + 1 != int(pars_.size()))
940 break; // last iteration anway
943 if (pars_[pit].isInserted(pos)) {
944 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
945 } else if (pars_[pit].isDeleted(pos)) {
946 if (pit + 1 == int(pars_.size())) {
947 // we cannot remove a par break at the end of the last paragraph;
948 // instead, we mark it unchanged
949 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
951 mergeParagraph(cur.buffer().params(), pars_, pit);
957 if (pars_[pit].isDeleted(pos)) {
958 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
959 } else if (pars_[pit].isInserted(pos)) {
960 if (pit + 1 == int(pars_.size())) {
961 // we mark the par break at the end of the last paragraph unchanged
962 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
964 mergeParagraph(cur.buffer().params(), pars_, pit);
972 // finally, invoke the DEPM
974 deleteEmptyParagraphMechanism(begPit, endPit, cur.buffer().params().trackChanges);
979 cur.clearSelection();
980 setCursorIntern(cur, begPit, begPos);
981 cur.updateFlags(Update::Force);
982 updateLabels(cur.buffer());
986 void Text::acceptChanges(BufferParams const & bparams)
988 lyx::acceptChanges(pars_, bparams);
989 deleteEmptyParagraphMechanism(0, pars_.size() - 1, bparams.trackChanges);
993 void Text::rejectChanges(BufferParams const & bparams)
995 pit_type pars_size = static_cast<pit_type>(pars_.size());
997 // first, reject changes within each individual paragraph
998 // (do not consider end-of-par)
999 for (pit_type pit = 0; pit < pars_size; ++pit) {
1000 if (!pars_[pit].empty()) // prevent assertion failure
1001 pars_[pit].rejectChanges(bparams, 0, pars_[pit].size());
1004 // next, reject imaginary end-of-par characters
1005 for (pit_type pit = 0; pit < pars_size; ++pit) {
1006 pos_type pos = pars_[pit].size();
1008 if (pars_[pit].isDeleted(pos)) {
1009 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1010 } else if (pars_[pit].isInserted(pos)) {
1011 if (pit == pars_size - 1) {
1012 // we mark the par break at the end of the last
1013 // paragraph unchanged
1014 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
1016 mergeParagraph(bparams, pars_, pit);
1023 // finally, invoke the DEPM
1024 deleteEmptyParagraphMechanism(0, pars_size - 1, bparams.trackChanges);
1028 // Delete from cursor up to the end of the current or next word.
1029 void Text::deleteWordForward(Cursor & cur)
1031 BOOST_ASSERT(this == cur.text());
1032 if (cur.lastpos() == 0)
1036 cur.selection() = true;
1037 cursorRightOneWord(cur);
1039 cutSelection(cur, true, false);
1040 checkBufferStructure(cur.buffer(), cur);
1045 // Delete from cursor to start of current or prior word.
1046 void Text::deleteWordBackward(Cursor & cur)
1048 BOOST_ASSERT(this == cur.text());
1049 if (cur.lastpos() == 0)
1053 cur.selection() = true;
1054 cursorLeftOneWord(cur);
1056 cutSelection(cur, true, false);
1057 checkBufferStructure(cur.buffer(), cur);
1062 // Kill to end of line.
1063 void Text::deleteLineForward(Cursor & cur)
1065 BOOST_ASSERT(this == cur.text());
1066 if (cur.lastpos() == 0) {
1067 // Paragraph is empty, so we just go to the right
1071 cur.selection() = true; // to avoid deletion
1074 // What is this test for ??? (JMarc)
1075 if (!cur.selection())
1076 deleteWordForward(cur);
1078 cutSelection(cur, true, false);
1079 checkBufferStructure(cur.buffer(), cur);
1084 void Text::changeCase(Cursor & cur, Text::TextCase action)
1086 BOOST_ASSERT(this == cur.text());
1090 if (cur.selection()) {
1091 from = cur.selBegin();
1095 getWord(from, to, PARTIAL_WORD);
1096 cursorRightOneWord(cur);
1099 recordUndoSelection(cur, Undo::ATOMIC);
1101 pit_type begPit = from.pit();
1102 pit_type endPit = to.pit();
1104 pos_type begPos = from.pos();
1105 pos_type endPos = to.pos();
1107 bool const trackChanges = cur.buffer().params().trackChanges;
1109 pos_type right = 0; // needed after the for loop
1111 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1112 pos_type parSize = pars_[pit].size();
1114 pos_type pos = (pit == begPit ? begPos : 0);
1115 right = (pit == endPit ? endPos : parSize);
1117 // process sequences of modified characters; in change
1118 // tracking mode, this approach results in much better
1119 // usability than changing case on a char-by-char basis
1122 bool capitalize = true;
1124 for (; pos < right; ++pos) {
1125 char_type oldChar = pars_[pit].getChar(pos);
1126 char_type newChar = oldChar;
1128 // ignore insets and don't play with deleted text!
1129 if (oldChar != Paragraph::META_INSET && !pars_[pit].isDeleted(pos)) {
1131 case text_lowercase:
1132 newChar = lowercase(oldChar);
1134 case text_capitalization:
1136 newChar = uppercase(oldChar);
1140 case text_uppercase:
1141 newChar = uppercase(oldChar);
1146 if (!pars_[pit].isLetter(pos) || pars_[pit].isDeleted(pos)) {
1147 capitalize = true; // permit capitalization again
1150 if (oldChar != newChar) {
1154 if (oldChar == newChar || pos == right - 1) {
1155 if (oldChar != newChar) {
1156 pos++; // step behind the changing area
1158 int erasePos = pos - changes.size();
1159 for (size_t i = 0; i < changes.size(); i++) {
1160 pars_[pit].insertChar(pos, changes[i],
1161 pars_[pit].getFontSettings(cur.buffer().params(),
1164 if (!pars_[pit].eraseChar(erasePos, trackChanges)) {
1167 ++right; // expand selection
1175 // the selection may have changed due to logically-only deleted chars
1176 setCursor(cur, begPit, begPos);
1178 setCursor(cur, endPit, right);
1181 checkBufferStructure(cur.buffer(), cur);
1185 bool Text::handleBibitems(Cursor & cur)
1187 if (cur.paragraph().layout()->labeltype != LABEL_BIBLIO)
1189 // if a bibitem is deleted, merge with previous paragraph
1190 // if this is a bibliography item as well
1191 if (cur.pos() == 0) {
1192 BufferParams const & bufparams = cur.buffer().params();
1193 Paragraph const & par = cur.paragraph();
1194 Cursor prevcur = cur;
1195 if (cur.pit() > 0) {
1197 prevcur.pos() = prevcur.lastpos();
1199 Paragraph const & prevpar = prevcur.paragraph();
1200 if (cur.pit() > 0 && par.layout() == prevpar.layout()) {
1201 recordUndo(cur, Undo::ATOMIC, prevcur.pit());
1202 mergeParagraph(bufparams, cur.text()->paragraphs(),
1204 updateLabels(cur.buffer());
1205 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1206 cur.updateFlags(Update::Force);
1207 // if not, reset the paragraph to default
1209 cur.paragraph().layout(
1210 bufparams.getTextClass().defaultLayout());
1217 bool Text::erase(Cursor & cur)
1219 BOOST_ASSERT(this == cur.text());
1220 bool needsUpdate = false;
1221 Paragraph & par = cur.paragraph();
1223 if (cur.pos() != cur.lastpos()) {
1224 // this is the code for a normal delete, not pasting
1226 recordUndo(cur, Undo::DELETE);
1227 if(!par.eraseChar(cur.pos(), cur.buffer().params().trackChanges)) {
1228 // the character has been logically deleted only => skip it
1229 cur.top().forwardPos();
1231 checkBufferStructure(cur.buffer(), cur);
1234 if (cur.pit() == cur.lastpit())
1235 return dissolveInset(cur);
1237 if (!par.isMergedOnEndOfParDeletion(cur.buffer().params().trackChanges)) {
1238 par.setChange(cur.pos(), Change(Change::DELETED));
1242 setCursorIntern(cur, cur.pit() + 1, 0);
1243 needsUpdate = backspacePos0(cur);
1247 needsUpdate |= handleBibitems(cur);
1250 // Make sure the cursor is correct. Is this really needed?
1251 // No, not really... at least not here!
1252 cur.text()->setCursor(cur.top(), cur.pit(), cur.pos());
1253 checkBufferStructure(cur.buffer(), cur);
1260 bool Text::backspacePos0(Cursor & cur)
1262 BOOST_ASSERT(this == cur.text());
1266 bool needsUpdate = false;
1268 BufferParams const & bufparams = cur.buffer().params();
1269 TextClass const & tclass = bufparams.getTextClass();
1270 ParagraphList & plist = cur.text()->paragraphs();
1271 Paragraph const & par = cur.paragraph();
1272 Cursor prevcur = cur;
1274 prevcur.pos() = prevcur.lastpos();
1275 Paragraph const & prevpar = prevcur.paragraph();
1277 // is it an empty paragraph?
1278 if (cur.lastpos() == 0
1279 || (cur.lastpos() == 1 && par.isSeparator(0))) {
1280 recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
1281 plist.erase(boost::next(plist.begin(), cur.pit()));
1284 // is previous par empty?
1285 else if (prevcur.lastpos() == 0
1286 || (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
1287 recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
1288 plist.erase(boost::next(plist.begin(), prevcur.pit()));
1291 // Pasting is not allowed, if the paragraphs have different
1292 // layouts. I think it is a real bug of all other
1293 // word processors to allow it. It confuses the user.
1294 // Correction: Pasting is always allowed with standard-layout
1295 else if (par.layout() == prevpar.layout()
1296 || par.layout() == tclass.defaultLayout()) {
1297 recordUndo(cur, Undo::ATOMIC, prevcur.pit());
1298 mergeParagraph(bufparams, plist, prevcur.pit());
1303 updateLabels(cur.buffer());
1304 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1311 bool Text::backspace(Cursor & cur)
1313 BOOST_ASSERT(this == cur.text());
1314 bool needsUpdate = false;
1315 if (cur.pos() == 0) {
1317 return dissolveInset(cur);
1319 Paragraph & prev_par = pars_[cur.pit() - 1];
1321 if (!prev_par.isMergedOnEndOfParDeletion(cur.buffer().params().trackChanges)) {
1322 prev_par.setChange(prev_par.size(), Change(Change::DELETED));
1323 setCursorIntern(cur, cur.pit() - 1, prev_par.size());
1326 // The cursor is at the beginning of a paragraph, so
1327 // the backspace will collapse two paragraphs into one.
1328 needsUpdate = backspacePos0(cur);
1331 // this is the code for a normal backspace, not pasting
1333 recordUndo(cur, Undo::DELETE);
1334 // We used to do cursorLeftIntern() here, but it is
1335 // not a good idea since it triggers the auto-delete
1336 // mechanism. So we do a cursorLeftIntern()-lite,
1337 // without the dreaded mechanism. (JMarc)
1338 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1339 false, cur.boundary());
1340 cur.paragraph().eraseChar(cur.pos(), cur.buffer().params().trackChanges);
1341 checkBufferStructure(cur.buffer(), cur);
1344 if (cur.pos() == cur.lastpos())
1345 setCurrentFont(cur);
1347 needsUpdate |= handleBibitems(cur);
1349 // A singlePar update is not enough in this case.
1350 // cur.updateFlags(Update::Force);
1351 setCursor(cur.top(), cur.pit(), cur.pos());
1357 bool Text::dissolveInset(Cursor & cur) {
1358 BOOST_ASSERT(this == cur.text());
1360 if (isMainText(*cur.bv().buffer()) || cur.inset().nargs() != 1)
1363 recordUndoInset(cur);
1364 cur.selHandle(false);
1366 pos_type spos = cur.pos();
1367 pit_type spit = cur.pit();
1368 ParagraphList plist;
1369 if (cur.lastpit() != 0 || cur.lastpos() != 0)
1370 plist = paragraphs();
1372 // store cursor offset
1376 Buffer & b = cur.buffer();
1377 cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
1378 if (!plist.empty()) {
1379 // ERT paragraphs have the Language latex_language.
1380 // This is invalid outside of ERT, so we need to
1381 // change it to the buffer language.
1382 ParagraphList::iterator it = plist.begin();
1383 ParagraphList::iterator it_end = plist.end();
1384 for (; it != it_end; it++) {
1385 it->changeLanguage(b.params(), latex_language,
1389 pasteParagraphList(cur, plist, b.params().textclass,
1390 b.errorList("Paste"));
1392 cur.pit() = std::min(cur.lastpit(), spit);
1393 cur.pos() = std::min(cur.lastpos(), spos);
1395 cur.clearSelection();
1401 // only used for inset right now. should also be used for main text
1402 void Text::draw(PainterInfo & pi, int x, int y) const
1404 paintTextInset(*this, pi, x, y);
1408 // only used for inset right now. should also be used for main text
1409 void Text::drawSelection(PainterInfo & pi, int x, int) const
1411 Cursor & cur = pi.base.bv->cursor();
1412 if (!cur.selection())
1414 if (!ptr_cmp(cur.text(), this))
1417 LYXERR(Debug::DEBUG)
1418 << BOOST_CURRENT_FUNCTION
1419 << "draw selection at " << x
1422 DocIterator beg = cur.selectionBegin();
1423 DocIterator end = cur.selectionEnd();
1425 BufferView & bv = *pi.base.bv;
1427 // the selection doesn't touch the visible screen?
1428 if (bv_funcs::status(&bv, beg) == bv_funcs::CUR_BELOW
1429 || bv_funcs::status(&bv, end) == bv_funcs::CUR_ABOVE)
1432 TextMetrics const & tm = bv.textMetrics(this);
1433 ParagraphMetrics const & pm1 = tm.parMetrics(beg.pit());
1434 ParagraphMetrics const & pm2 = tm.parMetrics(end.pit());
1435 Row const & row1 = pm1.getRow(beg.pos(), beg.boundary());
1436 Row const & row2 = pm2.getRow(end.pos(), end.boundary());
1440 bool const clipAbove =
1441 (bv_funcs::status(&bv, beg) == bv_funcs::CUR_ABOVE);
1445 middleTop = bv_funcs::getPos(bv, beg, beg.boundary()).y_ + row1.descent();
1449 bool const clipBelow =
1450 (bv_funcs::status(&bv, end) == bv_funcs::CUR_BELOW);
1452 middleBottom = bv.workHeight();
1454 middleBottom = bv_funcs::getPos(bv, end, end.boundary()).y_ - row2.ascent();
1456 // start and end in the same line?
1457 if (!(clipAbove || clipBelow) && &row1 == &row2)
1458 // then only draw this row's selection
1459 drawRowSelection(pi, x, row1, beg, end, false, false);
1463 DocIterator begRowEnd = beg;
1464 begRowEnd.pos() = row1.endpos();
1465 begRowEnd.boundary(true);
1467 // draw upper rectangle
1468 drawRowSelection(pi, x, row1, beg, begRowEnd, false, true);
1471 if (middleTop < middleBottom) {
1472 // draw middle rectangle
1473 pi.pain.fillRectangle(x, middleTop,
1474 tm.width(), middleBottom - middleTop,
1480 DocIterator endRowBeg = end;
1481 endRowBeg.pos() = row2.pos();
1482 endRowBeg.boundary(false);
1484 // draw low rectangle
1485 drawRowSelection(pi, x, row2, endRowBeg, end, true, false);
1491 void Text::drawRowSelection(PainterInfo & pi, int x, Row const & row,
1492 DocIterator const & beg, DocIterator const & end,
1493 bool drawOnBegMargin, bool drawOnEndMargin) const
1495 BufferView & bv = *pi.base.bv;
1496 Buffer & buffer = *bv.buffer();
1497 TextMetrics const & tm = bv.textMetrics(this);
1498 DocIterator cur = beg;
1499 int x1 = cursorX(bv, beg.top(), beg.boundary());
1500 int x2 = cursorX(bv, end.top(), end.boundary());
1501 int y1 = bv_funcs::getPos(bv, cur, cur.boundary()).y_ - row.ascent();
1502 int y2 = y1 + row.height();
1505 if (drawOnBegMargin) {
1506 if (isRTL(buffer, beg.paragraph()))
1507 pi.pain.fillRectangle(x + x1, y1, tm.width() - x1, y2 - y1, Color::selection);
1509 pi.pain.fillRectangle(x, y1, x1, y2 - y1, Color::selection);
1512 if (drawOnEndMargin) {
1513 if (isRTL(buffer, beg.paragraph()))
1514 pi.pain.fillRectangle(x, y1, x2, y2 - y1, Color::selection);
1516 pi.pain.fillRectangle(x + x2, y1, tm.width() - x2, y2 - y1, Color::selection);
1519 // if we are on a boundary from the beginning, it's probably
1520 // a RTL boundary and we jump to the other side directly as this
1521 // segement is 0-size and confuses the logic below
1523 cur.boundary(false);
1525 // go through row and draw from RTL boundary to RTL boundary
1527 bool drawNow = false;
1529 // simplified cursorRight code below which does not
1530 // descend into insets and which does not go into the
1531 // next line. Compare the logic with the original cursorRight
1533 // if left of boundary -> just jump to right side
1534 // but for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
1535 if (cur.boundary()) {
1536 cur.boundary(false);
1537 } else if (isRTLBoundary(buffer, cur.paragraph(), cur.pos() + 1)) {
1538 // in front of RTL boundary -> Stay on this side of the boundary because:
1539 // ab|cDDEEFFghi -> abc|DDEEFFghi
1548 if (cur.pos() == row.endpos())
1553 // the previous segment was just drawn, now the next starts
1554 x1 = cursorX(bv, cur.top(), cur.boundary());
1557 if (!(cur < end) || drawNow) {
1558 x2 = cursorX(bv, cur.top(), cur.boundary());
1559 pi.pain.fillRectangle(x + min(x1,x2), y1, abs(x2 - x1), y2 - y1,
1562 // reset x1, so it is set again next round (which will be on the
1563 // right side of a boundary or at the selection end)
1571 bool Text::isLastRow(pit_type pit, Row const & row) const
1573 return row.endpos() >= pars_[pit].size()
1574 && pit + 1 == pit_type(paragraphs().size());
1578 bool Text::isFirstRow(pit_type pit, Row const & row) const
1580 return row.pos() == 0 && pit == 0;
1584 void Text::getWord(CursorSlice & from, CursorSlice & to,
1585 word_location const loc)
1587 Paragraph const & from_par = pars_[from.pit()];
1589 case WHOLE_WORD_STRICT:
1590 if (from.pos() == 0 || from.pos() == from_par.size()
1591 || !from_par.isLetter(from.pos())
1592 || !from_par.isLetter(from.pos() - 1)) {
1596 // no break here, we go to the next
1599 // If we are already at the beginning of a word, do nothing
1600 if (!from.pos() || !from_par.isLetter(from.pos() - 1))
1602 // no break here, we go to the next
1605 // always move the cursor to the beginning of previous word
1606 while (from.pos() && from_par.isLetter(from.pos() - 1))
1610 lyxerr << "Text::getWord: NEXT_WORD not implemented yet"
1614 // no need to move the 'from' cursor
1618 Paragraph & to_par = pars_[to.pit()];
1619 while (to.pos() < to_par.size() && to_par.isLetter(to.pos()))
1624 void Text::write(Buffer const & buf, std::ostream & os) const
1626 ParagraphList::const_iterator pit = paragraphs().begin();
1627 ParagraphList::const_iterator end = paragraphs().end();
1629 for (; pit != end; ++pit)
1630 pit->write(buf, os, buf.params(), dth);
1632 // Close begin_deeper
1633 for(; dth > 0; --dth)
1634 os << "\n\\end_deeper";
1638 bool Text::read(Buffer const & buf, Lexer & lex, ErrorList & errorList)
1640 depth_type depth = 0;
1642 while (lex.isOK()) {
1644 string const token = lex.getString();
1649 if (token == "\\end_inset")
1652 if (token == "\\end_body")
1655 if (token == "\\begin_body")
1658 if (token == "\\end_document")
1661 if (token == "\\begin_layout") {
1662 lex.pushToken(token);
1665 par.params().depth(depth);
1666 par.setFont(0, Font(Font::ALL_INHERIT, buf.params().language));
1667 pars_.push_back(par);
1669 // FIXME: goddamn InsetTabular makes us pass a Buffer
1671 lyx::readParagraph(buf, pars_.back(), lex, errorList);
1673 } else if (token == "\\begin_deeper") {
1675 } else if (token == "\\end_deeper") {
1677 lex.printError("\\end_deeper: " "depth is already null");
1682 lyxerr << "Handling unknown body token: `"
1683 << token << '\'' << endl;
1689 int Text::cursorX(BufferView const & bv, CursorSlice const & sl,
1690 bool boundary) const
1692 TextMetrics const & tm = bv.textMetrics(sl.text());
1693 pit_type const pit = sl.pit();
1694 Paragraph const & par = pars_[pit];
1695 ParagraphMetrics const & pm = tm.parMetrics(pit);
1696 if (pm.rows().empty())
1699 pos_type ppos = sl.pos();
1700 // Correct position in front of big insets
1701 bool const boundary_correction = ppos != 0 && boundary;
1702 if (boundary_correction)
1705 Row const & row = pm.getRow(sl.pos(), boundary);
1707 pos_type cursor_vpos = 0;
1709 Buffer const & buffer = *bv.buffer();
1710 RowMetrics const m = tm.computeRowMetrics(pit, row);
1713 bidi.computeTables(par, buffer, row);
1715 pos_type const row_pos = row.pos();
1716 pos_type const end = row.endpos();
1717 // Spaces at logical line breaks in bidi text must be skipped during
1718 // cursor positioning. However, they may appear visually in the middle
1719 // of a row; they must be skipped, wherever they are...
1720 // * logically "abc_[HEBREW_\nHEBREW]"
1721 // * visually "abc_[_WERBEH\nWERBEH]"
1722 pos_type skipped_sep_vpos = -1;
1725 cursor_vpos = row_pos;
1726 else if (ppos >= end)
1727 cursor_vpos = isRTL(buffer, par) ? row_pos : end;
1728 else if (ppos > row_pos && ppos >= end)
1729 // Place cursor after char at (logical) position pos - 1
1730 cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
1731 ? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
1733 // Place cursor before char at (logical) position ppos
1734 cursor_vpos = (bidi.level(ppos) % 2 == 0)
1735 ? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
1737 pos_type body_pos = par.beginOfBody();
1739 (body_pos > end || !par.isLineSeparator(body_pos - 1)))
1742 // Use font span to speed things up, see below
1745 FontMetrics const & labelfm = theFontMetrics(
1746 getLabelFont(buffer, par));
1748 // If the last logical character is a separator, skip it, unless
1749 // it's in the last row of a paragraph; see skipped_sep_vpos declaration
1750 if (end > 0 && end < par.size() && par.isSeparator(end - 1))
1751 skipped_sep_vpos = bidi.log2vis(end - 1);
1753 for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
1754 // Skip the separator which is at the logical end of the row
1755 if (vpos == skipped_sep_vpos)
1757 pos_type pos = bidi.vis2log(vpos);
1758 if (body_pos > 0 && pos == body_pos - 1) {
1760 docstring const lsep = from_utf8(par.layout()->labelsep);
1761 x += m.label_hfill + labelfm.width(lsep);
1762 if (par.isLineSeparator(body_pos - 1))
1763 x -= singleWidth(buffer, par, body_pos - 1);
1766 // Use font span to speed things up, see above
1767 if (pos < font_span.first || pos > font_span.last) {
1768 font_span = par.fontSpan(pos);
1769 font = getFont(buffer, par, pos);
1772 x += singleWidth(par, pos, par.getChar(pos), font);
1774 if (par.hfillExpansion(row, pos))
1775 x += (pos >= body_pos) ? m.hfill : m.label_hfill;
1776 else if (par.isSeparator(pos) && pos >= body_pos)
1780 // see correction above
1781 if (boundary_correction) {
1782 if (isRTL(buffer, sl, boundary))
1783 x -= singleWidth(buffer, par, ppos);
1785 x += singleWidth(buffer, par, ppos);
1792 int Text::cursorY(BufferView const & bv, CursorSlice const & sl, bool boundary) const
1794 //lyxerr << "Text::cursorY: boundary: " << boundary << std::endl;
1795 ParagraphMetrics const & pm = bv.parMetrics(this, sl.pit());
1796 if (pm.rows().empty())
1800 h -= bv.parMetrics(this, 0).rows()[0].ascent();
1801 for (pit_type pit = 0; pit < sl.pit(); ++pit) {
1802 h += bv.parMetrics(this, pit).height();
1805 if (pos && boundary)
1807 size_t const rend = pm.pos2row(pos);
1808 for (size_t rit = 0; rit != rend; ++rit)
1809 h += pm.rows()[rit].height();
1810 h += pm.rows()[rend].ascent();
1815 // Returns the current font and depth as a message.
1816 docstring Text::currentState(Cursor & cur)
1818 BOOST_ASSERT(this == cur.text());
1819 Buffer & buf = cur.buffer();
1820 Paragraph const & par = cur.paragraph();
1821 odocstringstream os;
1823 if (buf.params().trackChanges)
1824 os << _("[Change Tracking] ");
1826 Change change = par.lookupChange(cur.pos());
1828 if (change.type != Change::UNCHANGED) {
1829 Author const & a = buf.params().authors().get(change.author);
1830 os << _("Change: ") << a.name();
1831 if (!a.email().empty())
1832 os << " (" << a.email() << ")";
1833 // FIXME ctime is english, we should translate that
1834 os << _(" at ") << ctime(&change.changetime);
1838 // I think we should only show changes from the default
1840 // No, from the document font (MV)
1841 Font font = real_current_font;
1842 font.reduce(buf.params().getFont());
1844 os << bformat(_("Font: %1$s"), font.stateText(&buf.params()));
1846 // The paragraph depth
1847 int depth = cur.paragraph().getDepth();
1849 os << bformat(_(", Depth: %1$d"), depth);
1851 // The paragraph spacing, but only if different from
1853 Spacing const & spacing = par.params().spacing();
1854 if (!spacing.isDefault()) {
1855 os << _(", Spacing: ");
1856 switch (spacing.getSpace()) {
1857 case Spacing::Single:
1860 case Spacing::Onehalf:
1863 case Spacing::Double:
1866 case Spacing::Other:
1867 os << _("Other (") << from_ascii(spacing.getValueAsString()) << ')';
1869 case Spacing::Default:
1870 // should never happen, do nothing
1875 #ifdef DEVEL_VERSION
1876 os << _(", Inset: ") << &cur.inset();
1877 os << _(", Paragraph: ") << cur.pit();
1878 os << _(", Id: ") << par.id();
1879 os << _(", Position: ") << cur.pos();
1880 // FIXME: Why is the check for par.size() needed?
1881 // We are called with cur.pos() == par.size() quite often.
1882 if (!par.empty() && cur.pos() < par.size()) {
1883 // Force output of code point, not character
1884 size_t const c = par.getChar(cur.pos());
1885 os << _(", Char: 0x") << std::hex << c;
1887 os << _(", Boundary: ") << cur.boundary();
1888 // Row & row = cur.textRow();
1889 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
1895 docstring Text::getPossibleLabel(Cursor & cur) const
1897 pit_type pit = cur.pit();
1899 Layout_ptr layout = pars_[pit].layout();
1902 docstring par_text = pars_[pit].asString(cur.buffer(), false);
1903 for (int i = 0; i < lyxrc.label_init_length; ++i) {
1904 if (par_text.empty())
1907 par_text = split(par_text, head, ' ');
1908 // Is it legal to use spaces in labels ?
1914 // No need for a prefix if the user said so.
1915 if (lyxrc.label_init_length <= 0)
1918 // Will contain the label type.
1921 // For section, subsection, etc...
1922 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
1923 Layout_ptr const & layout2 = pars_[pit - 1].layout();
1924 if (layout2->latextype != LATEX_PARAGRAPH) {
1929 if (layout->latextype != LATEX_PARAGRAPH)
1930 name = from_ascii(layout->latexname());
1932 // for captions, we just take the caption type
1933 Inset * caption_inset = cur.innerInsetOfType(Inset::CAPTION_CODE);
1935 name = from_ascii(static_cast<InsetCaption *>(caption_inset)->type());
1937 // If none of the above worked, we'll see if we're inside various
1938 // types of insets and take our abbreviation from them.
1940 Inset::Code const codes[] = {
1945 for (unsigned int i = 0; i < (sizeof codes / sizeof codes[0]); ++i) {
1946 Inset * float_inset = cur.innerInsetOfType(codes[i]);
1948 name = float_inset->name();
1954 // Create a correct prefix for prettyref
1955 if (name == "theorem")
1956 name = from_ascii("thm");
1957 else if (name == "Foot")
1958 name = from_ascii("fn");
1959 else if (name == "listing")
1960 name = from_ascii("lst");
1963 text = name.substr(0, 3) + ':' + text;
1969 void Text::setCursorFromCoordinates(Cursor & cur, int const x, int const y)
1971 BOOST_ASSERT(this == cur.text());
1972 pit_type pit = getPitNearY(cur.bv(), y);
1974 TextMetrics const & tm = cur.bv().textMetrics(this);
1975 ParagraphMetrics const & pm = tm.parMetrics(pit);
1977 int yy = cur.bv().coordCache().get(this, pit).y_ - pm.ascent();
1978 LYXERR(Debug::DEBUG)
1979 << BOOST_CURRENT_FUNCTION
1983 << " yy: " << yy << endl;
1986 BOOST_ASSERT(pm.rows().size());
1987 for (; r < int(pm.rows().size()) - 1; ++r) {
1988 Row const & row = pm.rows()[r];
1989 if (int(yy + row.height()) > y)
1994 Row const & row = pm.rows()[r];
1996 LYXERR(Debug::DEBUG)
1997 << BOOST_CURRENT_FUNCTION
1999 << " from pos: " << row.pos()
2004 pos_type const pos = row.pos()
2005 + tm.getColumnNearX(pit, row, xx, bound);
2007 LYXERR(Debug::DEBUG)
2008 << BOOST_CURRENT_FUNCTION
2009 << ": setting cursor pit: " << pit
2013 setCursor(cur, pit, pos, true, bound);
2014 // remember new position.
2019 void Text::charsTranspose(Cursor & cur)
2021 BOOST_ASSERT(this == cur.text());
2023 pos_type pos = cur.pos();
2025 // If cursor is at beginning or end of paragraph, do nothing.
2026 if (pos == cur.lastpos() || pos == 0)
2029 Paragraph & par = cur.paragraph();
2031 // Get the positions of the characters to be transposed.
2032 pos_type pos1 = pos - 1;
2033 pos_type pos2 = pos;
2035 // In change tracking mode, ignore deleted characters.
2036 while (pos2 < cur.lastpos() && par.isDeleted(pos2))
2038 if (pos2 == cur.lastpos())
2041 while (pos1 >= 0 && par.isDeleted(pos1))
2046 // Don't do anything if one of the "characters" is not regular text.
2047 if (par.isInset(pos1) || par.isInset(pos2))
2050 // Store the characters to be transposed (including font information).
2051 char_type char1 = par.getChar(pos1);
2053 par.getFontSettings(cur.buffer().params(), pos1);
2055 char_type char2 = par.getChar(pos2);
2057 par.getFontSettings(cur.buffer().params(), pos2);
2059 // And finally, we are ready to perform the transposition.
2060 // Track the changes if Change Tracking is enabled.
2061 bool const trackChanges = cur.buffer().params().trackChanges;
2065 par.eraseChar(pos2, trackChanges);
2066 par.eraseChar(pos1, trackChanges);
2067 par.insertChar(pos1, char2, font2, trackChanges);
2068 par.insertChar(pos2, char1, font1, trackChanges);
2070 checkBufferStructure(cur.buffer(), cur);
2072 // After the transposition, move cursor to after the transposition.
2073 setCursor(cur, cur.pit(), pos2);