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 Jean-Marc Lasgouttes
10 * \author André Pönitz
12 * \author Jürgen Vigna
14 * Full author contact details are available in file CREDITS.
23 #include "buffer_funcs.h"
24 #include "bufferparams.h"
25 #include "BufferView.h"
27 #include "pariterator.h"
28 #include "coordcache.h"
29 #include "CutAndPaste.h"
31 #include "dispatchresult.h"
33 #include "errorlist.h"
34 #include "funcrequest.h"
36 #include "FontIterator.h"
40 #include "lyxlength.h"
44 #include "metricsinfo.h"
45 #include "paragraph.h"
46 #include "paragraph_funcs.h"
47 #include "ParagraphParameters.h"
48 #include "rowpainter.h"
51 #include "WordLangTuple.h"
53 #include "frontends/FontMetrics.h"
54 #include "frontends/Painter.h"
56 #include "insets/insettext.h"
57 #include "insets/insetbibitem.h"
58 #include "insets/insethfill.h"
59 #include "insets/insetlatexaccent.h"
60 #include "insets/insetline.h"
61 #include "insets/insetnewline.h"
62 #include "insets/insetpagebreak.h"
63 #include "insets/insetoptarg.h"
64 #include "insets/insetspace.h"
65 #include "insets/insetspecialchar.h"
66 #include "insets/insettabular.h"
68 #include "support/lstrings.h"
69 #include "support/textutils.h"
70 #include "support/convert.h"
72 #include <boost/current_function.hpp>
79 using support::bformat;
80 using support::contains;
81 using support::lowercase;
83 using support::uppercase;
85 using cap::cutSelection;
86 using cap::pasteParagraphList;
88 using frontend::FontMetrics;
101 int numberOfSeparators(Paragraph const & par, Row const & row)
103 pos_type const first = max(row.pos(), par.beginOfBody());
104 pos_type const last = row.endpos() - 1;
106 for (pos_type p = first; p < last; ++p) {
107 if (par.isSeparator(p))
114 int numberOfLabelHfills(Paragraph const & par, Row const & row)
116 pos_type last = row.endpos() - 1;
117 pos_type first = row.pos();
119 // hfill *DO* count at the beginning of paragraphs!
121 while (first < last && par.isHfill(first))
125 last = min(last, par.beginOfBody());
127 for (pos_type p = first; p < last; ++p) {
135 int numberOfHfills(Paragraph const & par, Row const & row)
137 pos_type const last = row.endpos();
138 pos_type first = row.pos();
140 // hfill *DO* count at the beginning of paragraphs!
142 while (first < last && par.isHfill(first))
146 first = max(first, par.beginOfBody());
149 for (pos_type p = first; p < last; ++p) {
157 void readParToken(Buffer const & buf, Paragraph & par, LyXLex & lex,
158 string const & token, LyXFont & font, Change & change, ErrorList & errorList)
160 BufferParams const & bp = buf.params();
162 if (token[0] != '\\') {
164 string::const_iterator cit = token.begin();
165 for (; cit != token.end(); ++cit)
166 par.insertChar(par.size(), (*cit), font, change);
168 docstring dstr = lex.getDocString();
169 docstring::const_iterator cit = dstr.begin();
170 docstring::const_iterator cend = dstr.end();
171 for (; cit != cend; ++cit)
172 par.insertChar(par.size(), *cit, font, change);
174 } else if (token == "\\begin_layout") {
176 string layoutname = lex.getString();
178 font = LyXFont(LyXFont::ALL_INHERIT, bp.language);
179 change = Change(Change::UNCHANGED);
181 LyXTextClass const & tclass = bp.getLyXTextClass();
183 if (layoutname.empty()) {
184 layoutname = tclass.defaultLayoutName();
187 bool hasLayout = tclass.hasLayout(layoutname);
190 errorList.push_back(ErrorItem(_("Unknown layout"),
191 bformat(_("Layout '%1$s' does not exist in textclass '%2$s'\nTrying to use the default instead.\n"),
192 from_utf8(layoutname), from_utf8(tclass.name())), par.id(), 0, par.size()));
193 layoutname = tclass.defaultLayoutName();
196 par.layout(bp.getLyXTextClass()[layoutname]);
198 // Test whether the layout is obsolete.
199 LyXLayout_ptr const & layout = par.layout();
200 if (!layout->obsoleted_by().empty())
201 par.layout(bp.getLyXTextClass()[layout->obsoleted_by()]);
203 par.params().read(lex);
205 } else if (token == "\\end_layout") {
206 lyxerr << BOOST_CURRENT_FUNCTION
207 << ": Solitary \\end_layout in line "
208 << lex.getLineNo() << "\n"
209 << "Missing \\begin_layout?.\n";
210 } else if (token == "\\end_inset") {
211 lyxerr << BOOST_CURRENT_FUNCTION
212 << ": Solitary \\end_inset in line "
213 << lex.getLineNo() << "\n"
214 << "Missing \\begin_inset?.\n";
215 } else if (token == "\\begin_inset") {
216 InsetBase * inset = readInset(lex, buf);
218 par.insertInset(par.size(), inset, font, change);
221 docstring line = from_utf8(lex.getString());
222 errorList.push_back(ErrorItem(_("Unknown Inset"), line,
223 par.id(), 0, par.size()));
225 } else if (token == "\\family") {
227 font.setLyXFamily(lex.getString());
228 } else if (token == "\\series") {
230 font.setLyXSeries(lex.getString());
231 } else if (token == "\\shape") {
233 font.setLyXShape(lex.getString());
234 } else if (token == "\\size") {
236 font.setLyXSize(lex.getString());
237 } else if (token == "\\lang") {
239 string const tok = lex.getString();
240 Language const * lang = languages.getLanguage(tok);
242 font.setLanguage(lang);
244 font.setLanguage(bp.language);
245 lex.printError("Unknown language `$$Token'");
247 } else if (token == "\\numeric") {
249 font.setNumber(font.setLyXMisc(lex.getString()));
250 } else if (token == "\\emph") {
252 font.setEmph(font.setLyXMisc(lex.getString()));
253 } else if (token == "\\bar") {
255 string const tok = lex.getString();
258 font.setUnderbar(LyXFont::ON);
259 else if (tok == "no")
260 font.setUnderbar(LyXFont::OFF);
261 else if (tok == "default")
262 font.setUnderbar(LyXFont::INHERIT);
264 lex.printError("Unknown bar font flag "
266 } else if (token == "\\noun") {
268 font.setNoun(font.setLyXMisc(lex.getString()));
269 } else if (token == "\\color") {
271 font.setLyXColor(lex.getString());
272 } else if (token == "\\InsetSpace" || token == "\\SpecialChar") {
274 // Insets don't make sense in a free-spacing context! ---Kayvan
275 if (par.isFreeSpacing()) {
276 if (token == "\\InsetSpace")
277 par.insertChar(par.size(), ' ', font, change);
278 else if (lex.isOK()) {
280 string const next_token = lex.getString();
281 if (next_token == "\\-")
282 par.insertChar(par.size(), '-', font, change);
284 lex.printError("Token `$$Token' "
286 "paragraph layout!");
290 auto_ptr<InsetBase> inset;
291 if (token == "\\SpecialChar" )
292 inset.reset(new InsetSpecialChar);
294 inset.reset(new InsetSpace);
295 inset->read(buf, lex);
296 par.insertInset(par.size(), inset.release(),
299 } else if (token == "\\i") {
300 auto_ptr<InsetBase> inset(new InsetLatexAccent);
301 inset->read(buf, lex);
302 par.insertInset(par.size(), inset.release(), font, change);
303 } else if (token == "\\backslash") {
304 par.insertChar(par.size(), '\\', font, change);
305 } else if (token == "\\newline") {
306 auto_ptr<InsetBase> inset(new InsetNewline);
307 inset->read(buf, lex);
308 par.insertInset(par.size(), inset.release(), font, change);
309 } else if (token == "\\LyXTable") {
310 auto_ptr<InsetBase> inset(new InsetTabular(buf));
311 inset->read(buf, lex);
312 par.insertInset(par.size(), inset.release(), font, change);
313 } else if (token == "\\hfill") {
314 par.insertInset(par.size(), new InsetHFill, font, change);
315 } else if (token == "\\lyxline") {
316 par.insertInset(par.size(), new InsetLine, font, change);
317 } else if (token == "\\newpage") {
318 par.insertInset(par.size(), new InsetPagebreak, font, change);
319 } else if (token == "\\change_unchanged") {
320 change = Change(Change::UNCHANGED);
321 } else if (token == "\\change_inserted") {
323 std::istringstream is(lex.getString());
327 if (aid >= bp.author_map.size()) {
328 errorList.push_back(ErrorItem(_("Change tracking error"),
329 bformat(_("Unknown author index for insertion: %1$d\n"), aid),
330 par.id(), 0, par.size()));
331 change = Change(Change::UNCHANGED);
333 change = Change(Change::INSERTED, bp.author_map[aid], ct);
334 } else if (token == "\\change_deleted") {
336 std::istringstream is(lex.getString());
340 if (aid >= bp.author_map.size()) {
341 errorList.push_back(ErrorItem(_("Change tracking error"),
342 bformat(_("Unknown author index for deletion: %1$d\n"), aid),
343 par.id(), 0, par.size()));
344 change = Change(Change::UNCHANGED);
346 change = Change(Change::DELETED, bp.author_map[aid], ct);
349 errorList.push_back(ErrorItem(_("Unknown token"),
350 bformat(_("Unknown token: %1$s %2$s\n"), from_utf8(token),
351 from_utf8(lex.getString())),
352 par.id(), 0, par.size()));
357 void readParagraph(Buffer const & buf, Paragraph & par, LyXLex & lex,
358 ErrorList & errorList)
361 string token = lex.getString();
363 Change change(Change::UNCHANGED);
366 readParToken(buf, par, lex, token, font, change, errorList);
369 token = lex.getString();
374 if (token == "\\end_layout") {
375 //Ok, paragraph finished
379 lyxerr[Debug::PARSER] << "Handling paragraph token: `"
380 << token << '\'' << endl;
381 if (token == "\\begin_layout" || token == "\\end_document"
382 || token == "\\end_inset" || token == "\\begin_deeper"
383 || token == "\\end_deeper") {
384 lex.pushToken(token);
385 lyxerr << "Paragraph ended in line "
386 << lex.getLineNo() << "\n"
387 << "Missing \\end_layout.\n";
391 // Final change goes to paragraph break:
392 par.setChange(par.size(), change);
394 // Initialize begin_of_body_ on load; redoParagraph maintains
395 par.setBeginOfBody();
403 double LyXText::spacing(Buffer const & buffer,
404 Paragraph const & par) const
406 if (par.params().spacing().isDefault())
407 return buffer.params().spacing().getValue();
408 return par.params().spacing().getValue();
412 int LyXText::width() const
418 int LyXText::height() const
420 return dim_.height();
424 int LyXText::singleWidth(Buffer const & buffer, Paragraph const & par,
427 return singleWidth(par, pos, par.getChar(pos),
428 getFont(buffer, par, pos));
432 int LyXText::singleWidth(Paragraph const & par,
433 pos_type pos, char_type c, LyXFont const & font) const
435 // The most common case is handled first (Asger)
436 if (isPrintable(c)) {
437 Language const * language = font.language();
438 if (language->rightToLeft()) {
439 if ((lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
440 lyxrc.font_norm_type == LyXRC::ISO_10646_1)
441 && language->lang() == "arabic") {
442 if (Encodings::isComposeChar_arabic(c))
444 c = par.transformChar(c, pos);
445 } else if (language->lang() == "hebrew" &&
446 Encodings::isComposeChar_hebrew(c))
449 return theFontMetrics(font).width(c);
452 if (c == Paragraph::META_INSET)
453 return par.getInset(pos)->width();
455 return theFontMetrics(font).width(c);
459 int LyXText::leftMargin(Buffer const & buffer, pit_type pit) const
461 BOOST_ASSERT(pit >= 0);
462 BOOST_ASSERT(pit < int(pars_.size()));
463 return leftMargin(buffer, pit, pars_[pit].size());
467 int LyXText::leftMargin(Buffer const & buffer,
468 pit_type const pit, pos_type const pos) const
470 BOOST_ASSERT(pit >= 0);
471 BOOST_ASSERT(pit < int(pars_.size()));
472 Paragraph const & par = pars_[pit];
473 BOOST_ASSERT(pos >= 0);
474 BOOST_ASSERT(pos <= par.size());
475 //lyxerr << "LyXText::leftMargin: pit: " << pit << " pos: " << pos << endl;
476 LyXTextClass const & tclass = buffer.params().getLyXTextClass();
477 LyXLayout_ptr const & layout = par.layout();
479 string parindent = layout->parindent;
483 if (isMainText(buffer))
484 l_margin += changebarMargin();
487 docstring leftm = from_utf8(tclass.leftmargin());
488 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm);
490 if (par.getDepth() != 0) {
491 // find the next level paragraph
492 pit_type newpar = outerHook(pit, pars_);
493 if (newpar != pit_type(pars_.size())) {
494 if (pars_[newpar].layout()->isEnvironment()) {
495 l_margin = leftMargin(buffer, newpar);
497 if (par.layout() == tclass.defaultLayout()) {
498 if (pars_[newpar].params().noindent())
501 parindent = pars_[newpar].layout()->parindent;
506 // This happens after sections in standard classes. The 1.3.x
507 // code compared depths too, but it does not seem necessary
509 if (par.layout() == tclass.defaultLayout()
510 && pit > 0 && pars_[pit - 1].layout()->nextnoindent)
513 LyXFont const labelfont = getLabelFont(buffer, par);
514 FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
516 switch (layout->margintype) {
518 if (!layout->leftmargin.empty()) {
520 docstring leftm = from_utf8(layout->leftmargin);
521 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm);
523 if (!par.getLabelstring().empty()) {
525 docstring labin = from_utf8(layout->labelindent);
526 l_margin += labelfont_metrics.signedWidth(labin);
527 docstring labstr = par.getLabelstring();
528 l_margin += labelfont_metrics.width(labstr);
529 docstring labsep = from_utf8(layout->labelsep);
530 l_margin += labelfont_metrics.width(labsep);
534 case MARGIN_MANUAL: {
536 docstring labin = from_utf8(layout->labelindent);
537 l_margin += labelfont_metrics.signedWidth(labin);
538 // The width of an empty par, even with manual label, should be 0
539 if (!par.empty() && pos >= par.beginOfBody()) {
540 if (!par.getLabelWidthString().empty()) {
541 docstring labstr = par.getLabelWidthString();
542 l_margin += labelfont_metrics.width(labstr);
543 docstring labsep = from_utf8(layout->labelsep);
544 l_margin += labelfont_metrics.width(labsep);
550 case MARGIN_STATIC: {
552 docstring leftm = from_utf8(layout->leftmargin);
553 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(leftm)
554 * 4 / (par.getDepth() + 4);
558 case MARGIN_FIRST_DYNAMIC:
559 if (layout->labeltype == LABEL_MANUAL) {
560 if (pos >= par.beginOfBody()) {
562 l_margin += labelfont_metrics.signedWidth(
563 from_utf8(layout->leftmargin));
566 l_margin += labelfont_metrics.signedWidth(
567 from_utf8(layout->labelindent));
570 // Special case to fix problems with
572 || (layout->labeltype == LABEL_STATIC
573 && layout->latextype == LATEX_ENVIRONMENT
574 && !isFirstInSequence(pit, pars_))) {
576 l_margin += labelfont_metrics.signedWidth(from_utf8(layout->leftmargin));
577 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
578 && layout->labeltype != LABEL_BIBLIO
579 && layout->labeltype !=
580 LABEL_CENTERED_TOP_ENVIRONMENT) {
581 l_margin += labelfont_metrics.signedWidth(from_utf8(layout->labelindent));
582 l_margin += labelfont_metrics.width(from_utf8(layout->labelsep));
583 l_margin += labelfont_metrics.width(par.getLabelstring());
587 case MARGIN_RIGHT_ADDRESS_BOX: {
589 // ok, a terrible hack. The left margin depends on the widest
590 // row in this paragraph.
591 RowList::iterator rit = par.rows().begin();
592 RowList::iterator end = par.rows().end();
594 #warning This is wrong.
596 int minfill = maxwidth_;
597 for ( ; rit != end; ++rit)
598 if (rit->fill() < minfill)
599 minfill = rit->fill();
600 l_margin += theFontMetrics(params.getFont()).signedWidth(layout->leftmargin);
603 // also wrong, but much shorter.
604 l_margin += maxwidth_ / 2;
609 if (!par.params().leftIndent().zero())
610 l_margin += par.params().leftIndent().inPixels(maxwidth_);
614 if (par.params().align() == LYX_ALIGN_LAYOUT)
615 align = layout->align;
617 align = par.params().align();
619 // set the correct parindent
621 && (layout->labeltype == LABEL_NO_LABEL
622 || layout->labeltype == LABEL_TOP_ENVIRONMENT
623 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
624 || (layout->labeltype == LABEL_STATIC
625 && layout->latextype == LATEX_ENVIRONMENT
626 && !isFirstInSequence(pit, pars_)))
627 && align == LYX_ALIGN_BLOCK
628 && !par.params().noindent()
629 // in some insets, paragraphs are never indented
630 && !(par.inInset() && par.inInset()->neverIndent(buffer))
631 // display style insets are always centered, omit indentation
634 && par.getInset(pos)->display())
635 && (par.layout() != tclass.defaultLayout()
636 || buffer.params().paragraph_separation ==
637 BufferParams::PARSEP_INDENT))
639 docstring din = from_utf8(parindent);
640 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(din);
647 int LyXText::rightMargin(Buffer const & buffer, Paragraph const & par) const
649 // FIXME: the correct way is to only call rightMargin() only
650 // within the main LyXText. The following test is thus bogus.
651 LyXText const & text = buffer.text();
652 // We do not want rightmargins on inner texts.
656 BufferParams const & params = buffer.params();
657 LyXTextClass const & tclass = params.getLyXTextClass();
658 docstring trmarg = from_utf8(tclass.rightmargin());
659 docstring lrmarg = from_utf8(par.layout()->rightmargin);
660 FontMetrics const & fm = theFontMetrics(params.getFont());
663 + fm.signedWidth(trmarg)
664 + fm.signedWidth(lrmarg)
665 * 4 / (par.getDepth() + 4);
671 int LyXText::labelEnd(Buffer const & buffer, pit_type const pit) const
673 // labelEnd is only needed if the layout fills a flushleft label.
674 if (pars_[pit].layout()->margintype != MARGIN_MANUAL)
676 // return the beginning of the body
677 return leftMargin(buffer, pit);
683 // this needs special handling - only newlines count as a break point
684 pos_type addressBreakPoint(pos_type i, Paragraph const & par)
686 pos_type const end = par.size();
689 if (par.isNewline(i))
698 void LyXText::rowBreakPoint(Buffer const & buffer, int right_margin,
699 pit_type const pit, Row & row) const
701 Paragraph const & par = pars_[pit];
702 pos_type const end = par.size();
703 pos_type const pos = row.pos();
709 // maximum pixel width of a row
710 int width = maxwidth_ - right_margin; // - leftMargin(buffer, pit, row);
716 LyXLayout_ptr const & layout = par.layout();
718 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
719 row.endpos(addressBreakPoint(pos, par));
723 pos_type const body_pos = par.beginOfBody();
726 // Now we iterate through until we reach the right margin
727 // or the end of the par, then choose the possible break
730 int const left = leftMargin(buffer, pit, pos);
733 // pixel width since last breakpoint
736 FontIterator fi = FontIterator(buffer, *this, par, pos);
737 pos_type point = end;
739 FontMetrics const & fm = theFontMetrics(getLabelFont(buffer, par));
740 for ( ; i < end; ++i, ++fi) {
741 char_type const c = par.getChar(i);
742 int thiswidth = singleWidth(par, i, c, *fi);
744 // add the auto-hfill from label end to the body
745 if (body_pos && i == body_pos) {
746 docstring lsep = from_utf8(layout->labelsep);
747 int add = fm.width(lsep);
748 if (par.isLineSeparator(i - 1))
749 add -= singleWidth(buffer, par, i - 1);
751 add = std::max(add, labelEnd(buffer, pit) - x);
756 chunkwidth += thiswidth;
758 // break before a character that will fall off
759 // the right of the row
761 // if no break before, break here
762 if (point == end || chunkwidth >= width - left) {
769 // exit on last registered breakpoint:
773 if (par.isNewline(i)) {
779 if (par.isInset(i + 1) && par.getInset(i + 1)->display()) {
784 if (par.isInset(i) && par.getInset(i)->display()) {
790 if (!par.isInset(i) || par.getInset(i)->isChar()) {
791 // some insets are line separators too
792 if (par.isLineSeparator(i)) {
793 // register breakpoint:
800 // maybe found one, but the par is short enough.
801 if (i == end && x < width)
804 // manual labels cannot be broken in LaTeX. But we
805 // want to make our on-screen rendering of footnotes
807 if (body_pos && point < body_pos)
814 void LyXText::setRowWidth(Buffer const & buffer, pit_type const pit, Row & row) const
816 // get the pure distance
817 pos_type const end = row.endpos();
819 Paragraph const & par = pars_[pit];
820 docstring const labelsep = from_utf8(par.layout()->labelsep);
821 int w = leftMargin(buffer, pit, row.pos());
823 pos_type const body_pos = par.beginOfBody();
824 pos_type i = row.pos();
826 FontMetrics const & fm = theFontMetrics(getLabelFont(buffer, par));
829 FontIterator fi = FontIterator(buffer, *this, par, i);
830 for ( ; i < end; ++i, ++fi) {
831 if (body_pos > 0 && i == body_pos) {
832 w += fm.width(labelsep);
833 if (par.isLineSeparator(i - 1))
834 w -= singleWidth(buffer, par, i - 1);
835 w = max(w, labelEnd(buffer, pit));
837 char_type const c = par.getChar(i);
838 w += singleWidth(par, i, c, *fi);
842 if (body_pos > 0 && body_pos >= end) {
843 w += fm.width(labelsep);
844 if (end > 0 && par.isLineSeparator(end - 1))
845 w -= singleWidth(buffer, par, end - 1);
846 w = max(w, labelEnd(buffer, pit));
849 row.width(w + rightMargin(buffer, par));
853 // returns the minimum space a manual label needs on the screen in pixel
854 int LyXText::labelFill(Buffer const & buffer, Paragraph const & par,
855 Row const & row) const
857 pos_type last = par.beginOfBody();
859 BOOST_ASSERT(last > 0);
861 // -1 because a label ends with a space that is in the label
864 // a separator at this end does not count
865 if (par.isLineSeparator(last))
869 for (pos_type i = row.pos(); i <= last; ++i)
870 w += singleWidth(buffer, par, i);
872 docstring const & label = par.params().labelWidthString();
876 FontMetrics const & fm = theFontMetrics(getLabelFont(buffer, par));
878 return max(0, fm.width(label) - w);
882 LColor_color LyXText::backgroundColor() const
884 return LColor_color(LColor::color(background_color_));
888 void LyXText::setHeightOfRow(BufferView const & bv, pit_type const pit,
891 Paragraph const & par = pars_[pit];
892 // get the maximum ascent and the maximum descent
893 double layoutasc = 0;
894 double layoutdesc = 0;
895 double const dh = defaultRowHeight();
897 // ok, let us initialize the maxasc and maxdesc value.
898 // Only the fontsize count. The other properties
899 // are taken from the layoutfont. Nicer on the screen :)
900 LyXLayout_ptr const & layout = par.layout();
902 // as max get the first character of this row then it can
903 // increase but not decrease the height. Just some point to
904 // start with so we don't have to do the assignment below too
906 Buffer const & buffer = *bv.buffer();
907 LyXFont font = getFont(buffer, par, row.pos());
908 LyXFont::FONT_SIZE const tmpsize = font.size();
909 font = getLayoutFont(buffer, pit);
910 LyXFont::FONT_SIZE const size = font.size();
911 font.setSize(tmpsize);
913 LyXFont labelfont = getLabelFont(buffer, par);
915 FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
916 FontMetrics const & fontmetrics = theFontMetrics(font);
918 // these are minimum values
919 double const spacing_val = layout->spacing.getValue()
920 * spacing(*bv.buffer(), par);
921 //lyxerr << "spacing_val = " << spacing_val << endl;
922 int maxasc = int(fontmetrics.maxAscent() * spacing_val);
923 int maxdesc = int(fontmetrics.maxDescent() * spacing_val);
925 // insets may be taller
926 InsetList::const_iterator ii = par.insetlist.begin();
927 InsetList::const_iterator iend = par.insetlist.end();
928 for ( ; ii != iend; ++ii) {
929 if (ii->pos >= row.pos() && ii->pos < row.endpos()) {
930 maxasc = max(maxasc, ii->inset->ascent());
931 maxdesc = max(maxdesc, ii->inset->descent());
935 // Check if any custom fonts are larger (Asger)
936 // This is not completely correct, but we can live with the small,
937 // cosmetic error for now.
939 pos_type const pos_end = row.endpos();
941 LyXFont::FONT_SIZE maxsize =
942 par.highestFontInRange(row.pos(), pos_end, size);
943 if (maxsize > font.size()) {
944 font.setSize(maxsize);
945 maxasc = max(maxasc, fontmetrics.maxAscent());
946 maxdesc = max(maxdesc, fontmetrics.maxDescent());
949 // This is nicer with box insets:
956 if (row.pos() == 0) {
957 Buffer const & buffer = *bv.buffer();
958 BufferParams const & bufparams = buffer.params();
959 // some parksips VERY EASY IMPLEMENTATION
960 if (bufparams.paragraph_separation
961 == BufferParams::PARSEP_SKIP
963 && ((layout->isParagraph() && par.getDepth() == 0)
964 || (pars_[pit - 1].layout()->isParagraph()
965 && pars_[pit - 1].getDepth() == 0)))
967 maxasc += bufparams.getDefSkip().inPixels(bv);
970 if (par.params().startOfAppendix())
971 maxasc += int(3 * dh);
973 // This is special code for the chapter, since the label of this
974 // layout is printed in an extra row
975 if (layout->counter == "chapter"
976 && !par.params().labelString().empty()) {
977 labeladdon = int(labelfont_metrics.maxHeight()
978 * layout->spacing.getValue()
979 * spacing(buffer, par));
982 // special code for the top label
983 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
984 || layout->labeltype == LABEL_BIBLIO
985 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
986 && isFirstInSequence(pit, paragraphs())
987 && !par.getLabelstring().empty())
990 labelfont_metrics.maxHeight()
991 * layout->spacing.getValue()
992 * spacing(*bv.buffer(), par)
993 + (layout->topsep + layout->labelbottomsep) * dh);
996 // Add the layout spaces, for example before and after
997 // a section, or between the items of a itemize or enumerate
1000 pit_type prev = depthHook(pit, pars_, par.getDepth());
1002 && pars_[prev].layout() == layout
1003 && pars_[prev].getDepth() == par.getDepth()
1004 && pars_[prev].getLabelWidthString() == par.getLabelWidthString())
1006 layoutasc = layout->itemsep * dh;
1007 } else if (pit != 0 || row.pos() != 0) {
1008 if (layout->topsep > 0)
1009 layoutasc = layout->topsep * dh;
1012 prev = outerHook(pit, pars_);
1013 if (prev != pit_type(pars_.size())) {
1014 maxasc += int(pars_[prev].layout()->parsep * dh);
1015 } else if (pit != 0) {
1016 if (pars_[pit - 1].getDepth() != 0 ||
1017 pars_[pit - 1].layout() == layout) {
1018 maxasc += int(layout->parsep * dh);
1023 // is it a bottom line?
1024 if (row.endpos() >= par.size()) {
1025 // add the layout spaces, for example before and after
1026 // a section, or between the items of a itemize or enumerate
1028 pit_type nextpit = pit + 1;
1029 if (nextpit != pit_type(pars_.size())) {
1030 pit_type cpit = pit;
1034 if (pars_[cpit].getDepth() > pars_[nextpit].getDepth()) {
1035 usual = pars_[cpit].layout()->bottomsep * dh;
1036 cpit = depthHook(cpit, paragraphs(), pars_[nextpit].getDepth());
1037 if (pars_[cpit].layout() != pars_[nextpit].layout()
1038 || pars_[nextpit].getLabelWidthString() != pars_[cpit].getLabelWidthString())
1040 unusual = pars_[cpit].layout()->bottomsep * dh;
1042 layoutdesc = max(unusual, usual);
1043 } else if (pars_[cpit].getDepth() == pars_[nextpit].getDepth()) {
1044 if (pars_[cpit].layout() != pars_[nextpit].layout()
1045 || pars_[nextpit].getLabelWidthString() != pars_[cpit].getLabelWidthString())
1046 layoutdesc = int(pars_[cpit].layout()->bottomsep * dh);
1051 // incalculate the layout spaces
1052 maxasc += int(layoutasc * 2 / (2 + pars_[pit].getDepth()));
1053 maxdesc += int(layoutdesc * 2 / (2 + pars_[pit].getDepth()));
1055 // FIXME: the correct way is to do the following is to move the
1056 // following code in another method specially tailored for the
1057 // main LyXText. The following test is thus bogus.
1058 LyXText const & text = buffer.text();
1059 // Top and bottom margin of the document (only at top-level)
1060 if (&text == this) {
1061 if (pit == 0 && row.pos() == 0)
1063 if (pit + 1 == pit_type(pars_.size()) &&
1064 row.endpos() == par.size())
1068 row.ascent(maxasc + labeladdon);
1069 row.descent(maxdesc);
1077 void LyXText::breakParagraph(LCursor & cur, bool keep_layout)
1079 BOOST_ASSERT(this == cur.text());
1081 Paragraph & cpar = cur.paragraph();
1082 pit_type cpit = cur.pit();
1084 LyXTextClass const & tclass = cur.buffer().params().getLyXTextClass();
1085 LyXLayout_ptr const & layout = cpar.layout();
1087 // this is only allowed, if the current paragraph is not empty
1088 // or caption and if it has not the keepempty flag active
1089 if (cur.lastpos() == 0 && !cpar.allowEmpty()
1090 && layout->labeltype != LABEL_SENSITIVE)
1093 // a layout change may affect also the following paragraph
1094 recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
1096 // Always break behind a space
1097 // It is better to erase the space (Dekel)
1098 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
1099 // FIXME: change tracking (MG)
1100 cpar.eraseChar(cur.pos(), cur.buffer().params().trackChanges);
1102 // How should the layout for the new paragraph be?
1103 int preserve_layout = 0;
1105 preserve_layout = 2;
1107 preserve_layout = layout->isEnvironment();
1109 // We need to remember this before we break the paragraph, because
1110 // that invalidates the layout variable
1111 bool sensitive = layout->labeltype == LABEL_SENSITIVE;
1113 // we need to set this before we insert the paragraph.
1114 bool const isempty = cpar.allowEmpty() && cpar.empty();
1116 lyx::breakParagraph(cur.buffer().params(), paragraphs(), cpit,
1117 cur.pos(), preserve_layout);
1119 // After this, neither paragraph contains any rows!
1122 pit_type next_par = cpit + 1;
1124 // well this is the caption hack since one caption is really enough
1127 // set to standard-layout
1128 pars_[cpit].applyLayout(tclass.defaultLayout());
1130 // set to standard-layout
1131 pars_[next_par].applyLayout(tclass.defaultLayout());
1134 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0))
1135 // FIXME: change tracking (MG)
1136 pars_[next_par].eraseChar(0, cur.buffer().params().trackChanges);
1138 ParIterator current_it(cur);
1139 ParIterator last_it(cur);
1143 updateLabels(cur.buffer(), current_it, last_it);
1145 // Mark "carriage return" as inserted if change tracking:
1146 if (cur.buffer().params().trackChanges) {
1147 // FIXME: Change tracking (MG)
1148 cur.paragraph().setChange(cur.paragraph().size(),
1149 Change(Change::INSERTED));
1152 // FIXME: Breaking a paragraph has nothing to do with setting a cursor.
1153 // Because of the mix between the model (the paragraph contents) and the
1154 // view (the paragraph breaking in rows, we have to do this here before
1155 // the setCursor() call below.
1156 bool changed_height = redoParagraph(cur.bv(), cpit);
1157 changed_height |= redoParagraph(cur.bv(), cpit + 1);
1159 // A singlePar update is not enough in this case.
1160 cur.updateFlags(Update::Force);
1163 // This check is necessary. Otherwise the new empty paragraph will
1164 // be deleted automatically. And it is more friendly for the user!
1165 if (cur.pos() != 0 || isempty)
1166 setCursor(cur, cur.pit() + 1, 0);
1168 setCursor(cur, cur.pit(), 0);
1172 // insert a character, moves all the following breaks in the
1173 // same Paragraph one to the right and make a rebreak
1174 void LyXText::insertChar(LCursor & cur, char_type c)
1176 BOOST_ASSERT(this == cur.text());
1177 BOOST_ASSERT(c != Paragraph::META_INSET);
1179 recordUndo(cur, Undo::INSERT);
1181 Buffer const & buffer = cur.buffer();
1182 Paragraph & par = cur.paragraph();
1183 // try to remove this
1184 pit_type const pit = cur.pit();
1186 bool const freeSpacing = par.layout()->free_spacing ||
1187 par.isFreeSpacing();
1189 if (lyxrc.auto_number) {
1190 static docstring const number_operators = from_ascii("+-/*");
1191 static docstring const number_unary_operators = from_ascii("+-");
1192 static docstring const number_seperators = from_ascii(".,:");
1194 if (current_font.number() == LyXFont::ON) {
1195 if (!isDigit(c) && !contains(number_operators, c) &&
1196 !(contains(number_seperators, c) &&
1198 cur.pos() != cur.lastpos() &&
1199 getFont(buffer, par, cur.pos()).number() == LyXFont::ON &&
1200 getFont(buffer, par, cur.pos() - 1).number() == LyXFont::ON)
1202 number(cur); // Set current_font.number to OFF
1203 } else if (isDigit(c) &&
1204 real_current_font.isVisibleRightToLeft()) {
1205 number(cur); // Set current_font.number to ON
1207 if (cur.pos() != 0) {
1208 char_type const c = par.getChar(cur.pos() - 1);
1209 if (contains(number_unary_operators, c) &&
1211 || par.isSeparator(cur.pos() - 2)
1212 || par.isNewline(cur.pos() - 2))
1214 setCharFont(buffer, pit, cur.pos() - 1, current_font);
1215 } else if (contains(number_seperators, c)
1217 && getFont(buffer, par, cur.pos() - 2).number() == LyXFont::ON) {
1218 setCharFont(buffer, pit, cur.pos() - 1, current_font);
1224 // First check, if there will be two blanks together or a blank at
1225 // the beginning of a paragraph.
1226 // I decided to handle blanks like normal characters, the main
1227 // difference are the special checks when calculating the row.fill
1228 // (blank does not count at the end of a row) and the check here
1230 // When the free-spacing option is set for the current layout,
1231 // disable the double-space checking
1232 if (!freeSpacing && isLineSeparatorChar(c)) {
1233 if (cur.pos() == 0) {
1234 static bool sent_space_message = false;
1235 if (!sent_space_message) {
1236 cur.message(_("You cannot insert a space at the "
1237 "beginning of a paragraph. Please read the Tutorial."));
1238 sent_space_message = true;
1242 BOOST_ASSERT(cur.pos() > 0);
1243 if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
1244 && !par.isDeleted(cur.pos() - 1)) {
1245 static bool sent_space_message = false;
1246 if (!sent_space_message) {
1247 cur.message(_("You cannot type two spaces this way. "
1248 "Please read the Tutorial."));
1249 sent_space_message = true;
1255 par.insertChar(cur.pos(), c, current_font, cur.buffer().params().trackChanges);
1257 // FIXME: Inserting a character has nothing to do with setting a cursor.
1258 // Because of the mix between the model (the paragraph contents) and the
1259 // view (the paragraph breaking in rows, we have to do this here.
1260 if (redoParagraph(cur.bv(), cur.pit()))
1261 // A singlePar update is not enough in this case.
1262 cur.updateFlags(Update::Force);
1263 setCursor(cur, cur.pit(), cur.pos() + 1, false, cur.boundary());
1268 void LyXText::charInserted()
1270 // Here we call finishUndo for every 20 characters inserted.
1271 // This is from my experience how emacs does it. (Lgb)
1272 static unsigned int counter;
1282 RowMetrics LyXText::computeRowMetrics(Buffer const & buffer,
1283 pit_type const pit, Row const & row) const
1286 Paragraph const & par = pars_[pit];
1288 double w = dim_.wid - row.width();
1290 bool const is_rtl = isRTL(buffer, par);
1292 result.x = rightMargin(buffer, par);
1294 result.x = leftMargin(buffer, pit, row.pos());
1296 // is there a manual margin with a manual label
1297 LyXLayout_ptr const & layout = par.layout();
1299 if (layout->margintype == MARGIN_MANUAL
1300 && layout->labeltype == LABEL_MANUAL) {
1301 /// We might have real hfills in the label part
1302 int nlh = numberOfLabelHfills(par, row);
1304 // A manual label par (e.g. List) has an auto-hfill
1305 // between the label text and the body of the
1307 // But we don't want to do this auto hfill if the par
1312 if (nlh && !par.getLabelWidthString().empty())
1313 result.label_hfill = labelFill(buffer, par, row) / double(nlh);
1316 // are there any hfills in the row?
1317 int const nh = numberOfHfills(par, row);
1321 result.hfill = w / nh;
1322 // we don't have to look at the alignment if it is ALIGN_LEFT and
1323 // if the row is already larger then the permitted width as then
1324 // we force the LEFT_ALIGN'edness!
1325 } else if (int(row.width()) < maxwidth_) {
1326 // is it block, flushleft or flushright?
1327 // set x how you need it
1329 if (par.params().align() == LYX_ALIGN_LAYOUT)
1330 align = layout->align;
1332 align = par.params().align();
1334 // Display-style insets should always be on a centred row
1335 // The test on par.size() is to catch zero-size pars, which
1336 // would trigger the assert in Paragraph::getInset().
1337 //inset = par.size() ? par.getInset(row.pos()) : 0;
1339 && par.isInset(row.pos())
1340 && par.getInset(row.pos())->display())
1342 align = LYX_ALIGN_CENTER;
1346 case LYX_ALIGN_BLOCK: {
1347 int const ns = numberOfSeparators(par, row);
1348 bool disp_inset = false;
1349 if (row.endpos() < par.size()) {
1350 InsetBase const * in = par.getInset(row.endpos());
1352 disp_inset = in->display();
1354 // If we have separators, this is not the last row of a
1355 // par, does not end in newline, and is not row above a
1356 // display inset... then stretch it
1358 && row.endpos() < par.size()
1359 && !par.isNewline(row.endpos() - 1)
1362 result.separator = w / ns;
1363 } else if (is_rtl) {
1368 case LYX_ALIGN_RIGHT:
1371 case LYX_ALIGN_CENTER:
1377 bidi.computeTables(par, buffer, row);
1379 pos_type body_pos = par.beginOfBody();
1380 pos_type end = row.endpos();
1383 && (body_pos > end || !par.isLineSeparator(body_pos - 1)))
1385 docstring const lsep = from_utf8(layout->labelsep);
1386 result.x += theFontMetrics(getLabelFont(buffer, par)).width(lsep);
1387 if (body_pos <= end)
1388 result.x += result.label_hfill;
1396 // the cursor set functions have a special mechanism. When they
1397 // realize, that you left an empty paragraph, they will delete it.
1399 bool LyXText::cursorRightOneWord(LCursor & cur)
1401 BOOST_ASSERT(this == cur.text());
1405 if (old.pos() == old.lastpos() && old.pit() != old.lastpit()) {
1409 // Advance through word.
1410 while (old.pos() != old.lastpos() && old.paragraph().isLetter(old.pos()))
1412 // Skip through trailing nonword stuff.
1413 while (old.pos() != old.lastpos() && !old.paragraph().isLetter(old.pos()))
1416 return setCursor(cur, old.pit(), old.pos());
1420 bool LyXText::cursorLeftOneWord(LCursor & cur)
1422 BOOST_ASSERT(this == cur.text());
1426 if (old.pos() == 0 && old.pit() != 0) {
1428 old.pos() = old.lastpos();
1430 // Skip through initial nonword stuff.
1431 while (old.pos() != 0 && !old.paragraph().isLetter(old.pos() - 1))
1433 // Advance through word.
1434 while (old.pos() != 0 && old.paragraph().isLetter(old.pos() - 1))
1437 return setCursor(cur, old.pit(), old.pos());
1441 void LyXText::selectWord(LCursor & cur, word_location loc)
1443 BOOST_ASSERT(this == cur.text());
1444 CursorSlice from = cur.top();
1445 CursorSlice to = cur.top();
1446 getWord(from, to, loc);
1447 if (cur.top() != from)
1448 setCursor(cur, from.pit(), from.pos());
1452 setCursor(cur, to.pit(), to.pos());
1457 // Select the word currently under the cursor when no
1458 // selection is currently set
1459 bool LyXText::selectWordWhenUnderCursor(LCursor & cur, word_location loc)
1461 BOOST_ASSERT(this == cur.text());
1462 if (cur.selection())
1464 selectWord(cur, loc);
1465 return cur.selection();
1469 void LyXText::acceptChange(LCursor & cur)
1471 BOOST_ASSERT(this == cur.text());
1472 if (!cur.selection() && cur.lastpos() != 0)
1475 recordUndoSelection(cur, Undo::INSERT);
1477 DocIterator it = cur.selectionBegin();
1478 DocIterator et = cur.selectionEnd();
1479 pit_type pit = it.pit();
1480 bool isDeleted = pars_[pit].isDeleted(it.pos());
1481 for (; pit <= et.pit(); ++pit) {
1482 pos_type left = ( pit == it.pit() ? it.pos() : 0 );
1484 ( pit == et.pit() ? et.pos() : pars_[pit].size() + 1 );
1485 pars_[pit].acceptChanges(left, right);
1488 ParagraphList & plist = paragraphs();
1489 if (it.pit() + 1 < et.pit())
1490 pars_.erase(boost::next(plist.begin(), it.pit() + 1),
1491 boost::next(plist.begin(), et.pit()));
1493 // Paragraph merge if appropriate:
1494 // FIXME: change tracking (MG)
1495 if (pars_[it.pit()].isDeleted(pars_[it.pit()].size())) {
1496 setCursorIntern(cur, it.pit() + 1, 0);
1501 cur.clearSelection();
1502 setCursorIntern(cur, it.pit(), 0);
1506 void LyXText::rejectChange(LCursor & cur)
1508 BOOST_ASSERT(this == cur.text());
1509 if (!cur.selection() && cur.lastpos() != 0)
1512 recordUndoSelection(cur, Undo::INSERT);
1514 DocIterator it = cur.selectionBegin();
1515 DocIterator et = cur.selectionEnd();
1516 pit_type pit = it.pit();
1517 bool isInserted = pars_[pit].isInserted(it.pos());
1518 for (; pit <= et.pit(); ++pit) {
1519 pos_type left = ( pit == it.pit() ? it.pos() : 0 );
1521 ( pit == et.pit() ? et.pos() : pars_[pit].size() + 1 );
1522 pars_[pit].rejectChanges(left, right);
1525 ParagraphList & plist = paragraphs();
1526 if (it.pit() + 1 < et.pit())
1527 pars_.erase(boost::next(plist.begin(), it.pit() + 1),
1528 boost::next(plist.begin(), et.pit()));
1529 // Paragraph merge if appropriate:
1530 // FIXME: change tracking (MG)
1531 if (pars_[it.pit()].isInserted(pars_[it.pit()].size())) {
1532 setCursorIntern(cur, it.pit() + 1, 0);
1537 cur.clearSelection();
1538 setCursorIntern(cur, it.pit(), 0);
1542 // Delete from cursor up to the end of the current or next word.
1543 void LyXText::deleteWordForward(LCursor & cur)
1545 BOOST_ASSERT(this == cur.text());
1546 if (cur.lastpos() == 0)
1550 cur.selection() = true;
1551 cursorRightOneWord(cur);
1553 cutSelection(cur, true, false);
1558 // Delete from cursor to start of current or prior word.
1559 void LyXText::deleteWordBackward(LCursor & cur)
1561 BOOST_ASSERT(this == cur.text());
1562 if (cur.lastpos() == 0)
1566 cur.selection() = true;
1567 cursorLeftOneWord(cur);
1569 cutSelection(cur, true, false);
1574 // Kill to end of line.
1575 void LyXText::deleteLineForward(LCursor & cur)
1577 BOOST_ASSERT(this == cur.text());
1578 if (cur.lastpos() == 0) {
1579 // Paragraph is empty, so we just go to the right
1583 cur.selection() = true; // to avoid deletion
1586 // What is this test for ??? (JMarc)
1587 if (!cur.selection())
1588 deleteWordForward(cur);
1590 cutSelection(cur, true, false);
1595 void LyXText::changeCase(LCursor & cur, LyXText::TextCase action)
1597 BOOST_ASSERT(this == cur.text());
1601 if (cur.selection()) {
1602 from = cur.selBegin();
1606 getWord(from, to, PARTIAL_WORD);
1607 cursorRightOneWord(cur);
1610 recordUndoSelection(cur);
1612 pos_type pos = from.pos();
1613 int par = from.pit();
1615 while (par != int(pars_.size()) && (pos != to.pos() || par != to.pit())) {
1617 if (pos == pars_[pit].size()) {
1622 char_type c = pars_[pit].getChar(pos);
1623 if (c != Paragraph::META_INSET) {
1625 case text_lowercase:
1628 case text_capitalization:
1630 action = text_lowercase;
1632 case text_uppercase:
1638 // FIXME: change tracking (MG)
1639 // sorry but we are no longer allowed to set a single character directly
1640 // we have to rewrite this method in terms of erase&insert operations
1641 //pars_[pit].setChar(pos, c);
1647 bool LyXText::erase(LCursor & cur)
1649 BOOST_ASSERT(this == cur.text());
1650 bool needsUpdate = false;
1651 Paragraph & par = cur.paragraph();
1653 if (cur.pos() != cur.lastpos()) {
1654 // this is the code for a normal delete, not pasting
1656 recordUndo(cur, Undo::DELETE);
1657 // FIXME: change tracking (MG)
1658 par.eraseChar(cur.pos(), cur.buffer().params().trackChanges);
1659 if (par.isDeleted(cur.pos()))
1662 } else if (cur.pit() != cur.lastpit()) {
1663 if (cur.buffer().params().trackChanges
1664 && par.isInserted(cur.pos())) {
1665 // mark "carriage return" as deleted:
1666 // FIXME: Change tracking (MG)
1667 par.setChange(cur.pos(), Change(Change::DELETED));
1671 setCursorIntern(cur, cur.pit() + 1, 0);
1672 needsUpdate = backspacePos0(cur);
1673 // FIXME: Change tracking (MG)
1674 if (cur.paragraph().isDeleted(cur.pos()))
1678 needsUpdate = dissolveInset(cur);
1680 // FIXME: Inserting characters has nothing to do with setting a cursor.
1681 // Because of the mix between the model (the paragraph contents)
1682 // and the view (the paragraph breaking in rows, we have to do this
1683 // here before the setCursorIntern() call.
1685 if (redoParagraph(cur.bv(), cur.pit()))
1686 // A singlePar update is not enough in this case.
1687 cur.updateFlags(Update::Force);
1688 // Make sure the cursor is correct. Is this really needed?
1689 // No, not really... at least not here!
1690 setCursorIntern(cur, cur.pit(), cur.pos());
1697 bool LyXText::backspacePos0(LCursor & cur)
1699 BOOST_ASSERT(this == cur.text());
1703 bool needsUpdate = false;
1705 BufferParams const & bufparams = cur.buffer().params();
1706 LyXTextClass const & tclass = bufparams.getLyXTextClass();
1707 ParagraphList & plist = cur.text()->paragraphs();
1708 Paragraph const & par = cur.paragraph();
1709 LCursor prevcur = cur;
1711 prevcur.pos() = prevcur.lastpos();
1712 Paragraph const & prevpar = prevcur.paragraph();
1714 // is it an empty paragraph?
1715 if (cur.lastpos() == 0
1716 || (cur.lastpos() == 1 && par.isSeparator(0))) {
1717 recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
1718 plist.erase(boost::next(plist.begin(), cur.pit()));
1721 // is previous par empty?
1722 else if (prevcur.lastpos() == 0
1723 || (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
1724 recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
1725 plist.erase(boost::next(plist.begin(), prevcur.pit()));
1728 // Pasting is not allowed, if the paragraphs have different
1729 // layout. I think it is a real bug of all other
1730 // word processors to allow it. It confuses the user.
1731 // Correction: Pasting is always allowed with standard-layout
1732 else if (par.layout() == prevpar.layout()
1733 || par.layout() == tclass.defaultLayout()) {
1734 recordUndo(cur, Undo::ATOMIC, prevcur.pit());
1735 mergeParagraph(bufparams, plist, prevcur.pit());
1740 updateLabels(cur.buffer());
1741 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1750 bool LyXText::backspace(LCursor & cur)
1752 BOOST_ASSERT(this == cur.text());
1753 bool needsUpdate = false;
1754 if (cur.pos() == 0) {
1756 return dissolveInset(cur);
1758 if (cur.buffer().params().trackChanges) {
1759 // FIXME: Change tracking (MG)
1760 // Previous paragraph, mark "carriage return" as
1762 Paragraph & par = pars_[cur.pit() - 1];
1763 // Take care of a just inserted para break:
1764 // FIXME: change tracking (MG)
1765 if (!par.isInserted(par.size())) {
1766 // FIXME: change tracking (MG)
1767 par.setChange(par.size(), Change(Change::DELETED));
1768 setCursorIntern(cur, cur.pit() - 1, par.size());
1773 // The cursor is at the beginning of a paragraph, so
1774 // the backspace will collapse two paragraphs into one.
1775 needsUpdate = backspacePos0(cur);
1778 // this is the code for a normal backspace, not pasting
1780 recordUndo(cur, Undo::DELETE);
1781 // We used to do cursorLeftIntern() here, but it is
1782 // not a good idea since it triggers the auto-delete
1783 // mechanism. So we do a cursorLeftIntern()-lite,
1784 // without the dreaded mechanism. (JMarc)
1785 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1786 false, cur.boundary());
1787 // FIXME: change tracking (MG)
1788 cur.paragraph().eraseChar(cur.pos(), cur.buffer().params().trackChanges);
1791 if (cur.pos() == cur.lastpos())
1792 setCurrentFont(cur);
1794 // FIXME: Backspacing has nothing to do with setting a cursor.
1795 // Because of the mix between the model (the paragraph contents)
1796 // and the view (the paragraph breaking in rows, we have to do this
1797 // here before the setCursor() call.
1798 if (redoParagraph(cur.bv(), cur.pit()))
1799 // A singlePar update is not enough in this case.
1800 cur.updateFlags(Update::Force);
1801 setCursor(cur, cur.pit(), cur.pos(), false, cur.boundary());
1807 bool LyXText::dissolveInset(LCursor & cur) {
1808 BOOST_ASSERT(this == cur.text());
1810 if (isMainText(*cur.bv().buffer()) || cur.inset().nargs() != 1)
1813 bool const in_ert = cur.inset().lyxCode() == InsetBase::ERT_CODE;
1814 recordUndoInset(cur);
1815 cur.selHandle(false);
1817 pos_type spos = cur.pos();
1818 pit_type spit = cur.pit();
1819 ParagraphList plist;
1820 if (cur.lastpit() != 0 || cur.lastpos() != 0)
1821 plist = paragraphs();
1823 // store cursor offset
1827 Buffer & b = cur.buffer();
1828 // FIXME: change tracking (MG)
1829 cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
1830 if (!plist.empty()) {
1832 // ERT paragraphs have the Language latex_language.
1833 // This is invalid outside of ERT, so we need to
1834 // change it to the buffer language.
1835 ParagraphList::iterator it = plist.begin();
1836 ParagraphList::iterator it_end = plist.end();
1837 for (; it != it_end; it++) {
1838 it->changeLanguage(b.params(),
1844 pasteParagraphList(cur, plist, b.params().textclass,
1845 b.errorList("Paste"));
1847 cur.pit() = std::min(cur.lastpit(), spit);
1848 cur.pos() = std::min(cur.lastpos(), spos);
1850 cur.clearSelection();
1856 Row const & LyXText::firstRow() const
1858 return *paragraphs().front().rows().begin();
1862 bool LyXText::redoParagraph(BufferView & bv, pit_type const pit)
1864 // remove rows of paragraph, keep track of height changes
1865 Paragraph & par = pars_[pit];
1866 Buffer const & buffer = *bv.buffer();
1868 // Add bibitem insets if necessary
1869 if (par.layout()->labeltype == LABEL_BIBLIO) {
1870 bool hasbibitem(false);
1871 if (!par.insetlist.empty()
1872 // Insist on it being in pos 0
1873 && par.getChar(0) == Paragraph::META_INSET) {
1874 InsetBase * inset = par.insetlist.begin()->inset;
1875 if (inset->lyxCode() == InsetBase::BIBITEM_CODE)
1879 InsetBibitem * inset(new
1880 InsetBibitem(InsetCommandParams("bibitem")));
1881 par.insertInset(0, static_cast<InsetBase *>(inset),
1882 Change(buffer.params().trackChanges ?
1883 Change::INSERTED : Change::UNCHANGED));
1884 bv.cursor().posRight();
1888 // Optimisation: this is used in the next two loops
1889 // so better to calculate that once here.
1890 int right_margin = rightMargin(buffer, par);
1893 // FIXME: We should always use getFont(), see documentation of
1894 // noFontChange() in insetbase.h.
1895 LyXFont const bufferfont = buffer.params().getFont();
1896 InsetList::iterator ii = par.insetlist.begin();
1897 InsetList::iterator iend = par.insetlist.end();
1898 for (; ii != iend; ++ii) {
1900 int const w = maxwidth_ - leftMargin(buffer, pit, ii->pos)
1902 LyXFont const & font = ii->inset->noFontChange() ?
1904 getFont(buffer, par, ii->pos);
1905 MetricsInfo mi(&bv, font, w);
1906 ii->inset->metrics(mi, dim);
1909 // rebreak the paragraph
1913 par.setBeginOfBody();
1917 rowBreakPoint(buffer, right_margin, pit, row);
1918 setRowWidth(buffer, pit, row);
1919 setHeightOfRow(bv, pit, row);
1920 par.rows().push_back(row);
1921 dim.wid = std::max(dim.wid, row.width());
1922 dim.des += row.height();
1924 } while (z < par.size());
1926 // Make sure that if a par ends in newline, there is one more row
1928 // FIXME this is a dirty trick. Now the _same_ position in the
1929 // paragraph occurs in _two_ different rows, and has two different
1930 // display positions, leading to weird behaviour when moving up/down.
1931 if (z > 0 && par.isNewline(z - 1)) {
1934 setRowWidth(buffer, pit, row);
1935 setHeightOfRow(bv, pit, row);
1936 par.rows().push_back(row);
1937 dim.des += row.height();
1940 dim.asc += par.rows()[0].ascent();
1941 dim.des -= par.rows()[0].ascent();
1943 bool const same = dim.height() == par.dim().height();
1946 //lyxerr << "redoParagraph: " << par.rows().size() << " rows\n";
1952 void LyXText::metrics(MetricsInfo & mi, Dimension & dim)
1954 //BOOST_ASSERT(mi.base.textwidth);
1955 if (mi.base.textwidth)
1956 maxwidth_ = mi.base.textwidth;
1957 //lyxerr << "LyXText::metrics: width: " << mi.base.textwidth
1958 // << " maxWidth: " << maxwidth_ << "\nfont: " << mi.base.font << endl;
1959 // save the caller's font locally:
1960 font_ = mi.base.font;
1964 for (pit_type pit = 0, n = paragraphs().size(); pit != n; ++pit) {
1965 redoParagraph(*mi.base.bv, pit);
1966 Paragraph & par = paragraphs()[pit];
1968 if (w < par.width())
1973 dim.asc = pars_[0].ascent();
1974 dim.des = h - dim.asc;
1980 // only used for inset right now. should also be used for main text
1981 void LyXText::draw(PainterInfo & pi, int x, int y) const
1983 paintTextInset(*this, pi, x, y);
1987 // only used for inset right now. should also be used for main text
1988 void LyXText::drawSelection(PainterInfo & pi, int x, int) const
1990 LCursor & cur = pi.base.bv->cursor();
1991 if (!cur.selection())
1993 if (!ptr_cmp(cur.text(), this))
1996 if (lyxerr.debugging(Debug::DEBUG)) {
1997 lyxerr[Debug::DEBUG]
1998 << BOOST_CURRENT_FUNCTION
1999 << "draw selection at " << x
2003 DocIterator beg = cur.selectionBegin();
2004 DocIterator end = cur.selectionEnd();
2006 BufferView & bv = *pi.base.bv;
2007 Buffer const & buffer = *bv.buffer();
2009 // the selection doesn't touch the visible screen
2010 if (bv_funcs::status(&bv, beg) == bv_funcs::CUR_BELOW
2011 || bv_funcs::status(&bv, end) == bv_funcs::CUR_ABOVE)
2014 Paragraph const & par1 = pars_[beg.pit()];
2015 Paragraph const & par2 = pars_[end.pit()];
2017 bool const above = (bv_funcs::status(&bv, beg)
2018 == bv_funcs::CUR_ABOVE);
2019 bool const below = (bv_funcs::status(&bv, end)
2020 == bv_funcs::CUR_BELOW);
2028 Row const & row1 = par1.getRow(beg.pos(), beg.boundary());
2029 y1 = bv_funcs::getPos(bv, beg, beg.boundary()).y_ - row1.ascent();
2030 y2 = y1 + row1.height();
2031 int const startx = cursorX(buffer, beg.top(), beg.boundary());
2032 if (!isRTL(buffer, par1)) {
2044 Y1 = bv.workHeight();
2045 Y2 = bv.workHeight();
2049 Row const & row2 = par2.getRow(end.pos(), end.boundary());
2050 Y1 = bv_funcs::getPos(bv, end, end.boundary()).y_ - row2.ascent();
2051 Y2 = Y1 + row2.height();
2052 int const endx = cursorX(buffer, end.top(), end.boundary());
2053 if (!isRTL(buffer, par2)) {
2063 if (!above && !below && &par1.getRow(beg.pos(), beg.boundary())
2064 == &par2.getRow(end.pos(), end.boundary()))
2066 // paint only one rectangle
2067 int const b( !isRTL(*bv.buffer(), par1) ? x + x1 : x + X1 );
2068 int const w( !isRTL(*bv.buffer(), par1) ? X2 - x1 : x2 - X1 );
2069 pi.pain.fillRectangle(b, y1, w, y2 - y1, LColor::selection);
2073 if (lyxerr.debugging(Debug::DEBUG)) {
2074 lyxerr[Debug::DEBUG] << " y1: " << y1 << " y2: " << y2
2075 << "X1:" << X1 << " x2: " << X2 << " wid: " << dim_.wid
2079 // paint upper rectangle
2080 pi.pain.fillRectangle(x + x1, y1, x2 - x1, y2 - y1,
2082 // paint bottom rectangle
2083 pi.pain.fillRectangle(x + X1, Y1, X2 - X1, Y2 - Y1,
2085 // paint center rectangle
2086 pi.pain.fillRectangle(x, y2, dim_.wid,
2087 Y1 - y2, LColor::selection);
2090 bool LyXText::isLastRow(pit_type pit, Row const & row) const
2092 return row.endpos() >= pars_[pit].size()
2093 && pit + 1 == pit_type(paragraphs().size());
2097 bool LyXText::isFirstRow(pit_type pit, Row const & row) const
2099 return row.pos() == 0 && pit == 0;
2103 void LyXText::getWord(CursorSlice & from, CursorSlice & to,
2104 word_location const loc)
2106 Paragraph const & from_par = pars_[from.pit()];
2108 case WHOLE_WORD_STRICT:
2109 if (from.pos() == 0 || from.pos() == from_par.size()
2110 || !from_par.isLetter(from.pos())
2111 || !from_par.isLetter(from.pos() - 1)) {
2115 // no break here, we go to the next
2118 // If we are already at the beginning of a word, do nothing
2119 if (!from.pos() || !from_par.isLetter(from.pos() - 1))
2121 // no break here, we go to the next
2124 // always move the cursor to the beginning of previous word
2125 while (from.pos() && from_par.isLetter(from.pos() - 1))
2129 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet"
2133 // no need to move the 'from' cursor
2137 Paragraph & to_par = pars_[to.pit()];
2138 while (to.pos() < to_par.size() && to_par.isLetter(to.pos()))
2143 void LyXText::write(Buffer const & buf, std::ostream & os) const
2145 ParagraphList::const_iterator pit = paragraphs().begin();
2146 ParagraphList::const_iterator end = paragraphs().end();
2148 for (; pit != end; ++pit)
2149 pit->write(buf, os, buf.params(), dth);
2153 bool LyXText::read(Buffer const & buf, LyXLex & lex, ErrorList & errorList)
2155 depth_type depth = 0;
2157 while (lex.isOK()) {
2159 string const token = lex.getString();
2164 if (token == "\\end_inset")
2167 if (token == "\\end_body")
2170 if (token == "\\begin_body")
2173 if (token == "\\end_document")
2176 if (token == "\\begin_layout") {
2177 lex.pushToken(token);
2180 par.params().depth(depth);
2181 par.setFont(0, LyXFont(LyXFont::ALL_INHERIT, buf.params().language));
2182 pars_.push_back(par);
2184 // FIXME: goddamn InsetTabular makes us pass a Buffer
2186 lyx::readParagraph(buf, pars_.back(), lex, errorList);
2188 } else if (token == "\\begin_deeper") {
2190 } else if (token == "\\end_deeper") {
2192 lex.printError("\\end_deeper: " "depth is already null");
2197 lyxerr << "Handling unknown body token: `"
2198 << token << '\'' << endl;
2205 int LyXText::ascent() const
2211 int LyXText::descent() const
2217 int LyXText::cursorX(Buffer const & buffer, CursorSlice const & sl,
2218 bool boundary) const
2220 pit_type const pit = sl.pit();
2221 Paragraph const & par = pars_[pit];
2222 if (par.rows().empty())
2225 pos_type ppos = sl.pos();
2226 // Correct position in front of big insets
2227 bool const boundary_correction = ppos != 0 && boundary;
2228 if (boundary_correction)
2231 Row const & row = par.getRow(sl.pos(), boundary);
2233 pos_type cursor_vpos = 0;
2235 RowMetrics const m = computeRowMetrics(buffer, pit, row);
2238 pos_type const row_pos = row.pos();
2239 pos_type const end = row.endpos();
2242 cursor_vpos = row_pos;
2243 else if (ppos >= end)
2244 cursor_vpos = isRTL(buffer, par) ? row_pos : end;
2245 else if (ppos > row_pos && ppos >= end)
2246 // Place cursor after char at (logical) position pos - 1
2247 cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
2248 ? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
2250 // Place cursor before char at (logical) position ppos
2251 cursor_vpos = (bidi.level(ppos) % 2 == 0)
2252 ? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
2254 pos_type body_pos = par.beginOfBody();
2256 (body_pos > end || !par.isLineSeparator(body_pos - 1)))
2259 // Use font span to speed things up, see below
2262 FontMetrics const & labelfm = theFontMetrics(
2263 getLabelFont(buffer, par));
2265 for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
2266 pos_type pos = bidi.vis2log(vpos);
2267 if (body_pos > 0 && pos == body_pos - 1) {
2269 docstring const lsep = from_utf8(par.layout()->labelsep);
2270 x += m.label_hfill + labelfm.width(lsep);
2271 if (par.isLineSeparator(body_pos - 1))
2272 x -= singleWidth(buffer, par, body_pos - 1);
2275 // Use font span to speed things up, see above
2276 if (pos < font_span.first || pos > font_span.last) {
2277 font_span = par.fontSpan(pos);
2278 font = getFont(buffer, par, pos);
2281 x += singleWidth(par, pos, par.getChar(pos), font);
2283 if (par.hfillExpansion(row, pos))
2284 x += (pos >= body_pos) ? m.hfill : m.label_hfill;
2285 else if (par.isSeparator(pos) && pos >= body_pos)
2289 // see correction above
2290 if (boundary_correction)
2291 if (getFont(buffer, par, ppos).isVisibleRightToLeft())
2292 x -= singleWidth(buffer, par, ppos);
2294 x += singleWidth(buffer, par, ppos);
2296 // Make sure inside an inset we always count from the left
2297 // edge (bidi!) -- MV
2298 if (sl.pos() < par.size()) {
2299 font = getFont(buffer, par, sl.pos());
2300 if (!boundary && font.isVisibleRightToLeft()
2301 && par.isInset(sl.pos()))
2302 x -= par.getInset(sl.pos())->width();
2308 int LyXText::cursorY(CursorSlice const & sl, bool boundary) const
2310 //lyxerr << "LyXText::cursorY: boundary: " << boundary << std::endl;
2311 Paragraph const & par = getPar(sl.pit());
2312 if (par.rows().empty())
2316 h -= pars_[0].rows()[0].ascent();
2317 for (pit_type pit = 0; pit < sl.pit(); ++pit)
2318 h += pars_[pit].height();
2320 if (pos && boundary)
2322 size_t const rend = par.pos2row(pos);
2323 for (size_t rit = 0; rit != rend; ++rit)
2324 h += par.rows()[rit].height();
2325 h += par.rows()[rend].ascent();
2330 // Returns the current font and depth as a message.
2331 string LyXText::currentState(LCursor & cur)
2333 BOOST_ASSERT(this == cur.text());
2334 Buffer & buf = cur.buffer();
2335 Paragraph const & par = cur.paragraph();
2336 std::ostringstream os;
2338 if (buf.params().trackChanges)
2341 Change change = par.lookupChange(cur.pos());
2343 if (change.type != Change::UNCHANGED) {
2344 Author const & a = buf.params().authors().get(change.author);
2345 os << to_utf8(_("Change: ")) << a.name();
2346 if (!a.email().empty())
2347 os << " (" << a.email() << ")";
2348 os << to_utf8(_(" at ")) << ctime(&change.changetime);
2352 // I think we should only show changes from the default
2354 // No, from the document font (MV)
2355 LyXFont font = real_current_font;
2356 font.reduce(buf.params().getFont());
2358 // avoid to_utf8(_(...)) re-entrance problem
2359 string const s = font.stateText(&buf.params());
2360 os << to_utf8(bformat(_("Font: %1$s"), from_utf8(s)));
2362 // os << to_utf8(bformat(_("Font: %1$s"), font.stateText(&buf.params)));
2364 // The paragraph depth
2365 int depth = cur.paragraph().getDepth();
2367 os << to_utf8(bformat(_(", Depth: %1$d"), depth));
2369 // The paragraph spacing, but only if different from
2371 Spacing const & spacing = par.params().spacing();
2372 if (!spacing.isDefault()) {
2373 os << to_utf8(_(", Spacing: "));
2374 switch (spacing.getSpace()) {
2375 case Spacing::Single:
2376 os << to_utf8(_("Single"));
2378 case Spacing::Onehalf:
2379 os << to_utf8(_("OneHalf"));
2381 case Spacing::Double:
2382 os << to_utf8(_("Double"));
2384 case Spacing::Other:
2385 os << to_utf8(_("Other (")) << spacing.getValueAsString() << ')';
2387 case Spacing::Default:
2388 // should never happen, do nothing
2393 #ifdef DEVEL_VERSION
2394 os << to_utf8(_(", Inset: ")) << &cur.inset();
2395 os << to_utf8(_(", Paragraph: ")) << cur.pit();
2396 os << to_utf8(_(", Id: ")) << par.id();
2397 os << to_utf8(_(", Position: ")) << cur.pos();
2398 os << to_utf8(_(", Boundary: ")) << cur.boundary();
2399 // Row & row = cur.textRow();
2400 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
2406 docstring LyXText::getPossibleLabel(LCursor & cur) const
2408 pit_type pit = cur.pit();
2410 LyXLayout_ptr layout = pars_[pit].layout();
2412 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
2413 LyXLayout_ptr const & layout2 = pars_[pit - 1].layout();
2414 if (layout2->latextype != LATEX_PARAGRAPH) {
2420 docstring name = from_ascii(layout->latexname());
2422 // for captions, we want the abbreviation of the float type
2423 if (layout->labeltype == LABEL_SENSITIVE) {
2424 // Search for the first float or wrap inset in the iterator
2425 for (int i = cur.depth(); --i >= 0; ) {
2426 InsetBase * const in = &cur[i].inset();
2427 if (in->lyxCode() == InsetBase::FLOAT_CODE
2428 || in->lyxCode() == InsetBase::WRAP_CODE) {
2429 name = in->getInsetName();
2435 docstring text = name.substr(0, 3);
2436 if (name == "theorem")
2437 text = from_ascii("thm"); // Create a correct prefix for prettyref
2440 if (layout->latextype == LATEX_PARAGRAPH || lyxrc.label_init_length < 0)
2443 docstring par_text = pars_[pit].asString(cur.buffer(), false);
2444 for (int i = 0; i < lyxrc.label_init_length; ++i) {
2445 if (par_text.empty())
2448 par_text = split(par_text, head, ' ');
2449 // Is it legal to use spaces in labels ?
2459 //pos_type LyXText::x2pos(pit_type pit, int row, int x) const
2463 // Paragraph const & par = pars_[pit];
2464 // Row const & r = par.rows()[row];
2465 // int pos = r.pos();
2466 // for (; currx < x && pos < r.endpos(); ++pos) {
2468 // currx += singleWidth(buffer, par, pos);
2470 // if (abs(lastx - x) < abs(currx - x) && pos != r.pos())
2476 pos_type LyXText::x2pos(BufferView const & bv, pit_type pit, int row,
2479 BOOST_ASSERT(row < int(pars_[pit].rows().size()));
2481 Row const & r = pars_[pit].rows()[row];
2482 return r.pos() + getColumnNearX(bv, pit, r, x, bound);
2486 //int LyXText::pos2x(pit_type pit, pos_type pos) const
2488 // Paragraph const & par = pars_[pit];
2489 // Row const & r = par.rows()[row];
2495 // x,y are screen coordinates
2496 // sets cursor only within this LyXText
2497 bool LyXText::setCursorFromCoordinates(LCursor & cur, int const x, int const y)
2499 BOOST_ASSERT(this == cur.text());
2500 pit_type pit = getPitNearY(cur.bv(), y);
2501 int yy = cur.bv().coordCache().get(this, pit).y_ - pars_[pit].ascent();
2502 lyxerr[Debug::DEBUG]
2503 << BOOST_CURRENT_FUNCTION
2507 << " yy: " << yy << endl;
2509 Paragraph const & par = pars_[pit];
2511 BOOST_ASSERT(par.rows().size());
2512 for (; r < int(par.rows().size()) - 1; ++r) {
2513 Row const & row = par.rows()[r];
2514 if (int(yy + row.height()) > y)
2519 Row const & row = par.rows()[r];
2521 lyxerr[Debug::DEBUG]
2522 << BOOST_CURRENT_FUNCTION
2524 << " from pos: " << row.pos()
2529 pos_type const pos = row.pos() + getColumnNearX(cur.bv(), pit, row,
2532 lyxerr[Debug::DEBUG]
2533 << BOOST_CURRENT_FUNCTION
2534 << ": setting cursor pit: " << pit
2538 return setCursor(cur, pit, pos, true, bound);
2542 void LyXText::charsTranspose(LCursor & cur)
2544 BOOST_ASSERT(this == cur.text());
2546 pos_type pos = cur.pos();
2548 // If cursor is at beginning or end of paragraph, do nothing.
2549 if (pos == cur.lastpos() || pos == 0)
2552 Paragraph & par = cur.paragraph();
2554 // Get the positions of the characters to be transposed.
2555 pos_type pos1 = pos - 1;
2556 pos_type pos2 = pos;
2558 // In change tracking mode, ignore deleted characters.
2559 while (pos2 < cur.lastpos() && par.isDeleted(pos2))
2561 if (pos2 == cur.lastpos())
2564 while (pos1 >= 0 && par.isDeleted(pos1))
2569 // Don't do anything if one of the "characters" is not regular text.
2570 if (par.isInset(pos1) || par.isInset(pos2))
2573 // Store the characters to be transposed (including font information).
2574 char_type char1 = par.getChar(pos1);
2575 LyXFont const font1 =
2576 par.getFontSettings(cur.buffer().params(), pos1);
2578 char_type char2 = par.getChar(pos2);
2579 LyXFont const font2 =
2580 par.getFontSettings(cur.buffer().params(), pos2);
2582 // And finally, we are ready to perform the transposition.
2583 // Track the changes if Change Tracking is enabled.
2584 bool const trackChanges = cur.buffer().params().trackChanges;
2588 par.eraseChar(pos2, trackChanges);
2589 par.eraseChar(pos1, trackChanges);
2590 par.insertChar(pos1, char2, font2, trackChanges);
2591 par.insertChar(pos2, char1, font1, trackChanges);
2593 // After the transposition, move cursor to after the transposition.
2594 setCursor(cur, cur.pit(), pos2);