3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Asger Alstrup
7 * \author Lars Gullik Bjønnes
8 * \author Dov Feldstern
9 * \author Jean-Marc Lasgouttes
11 * \author André Pönitz
12 * \author Stefan Schimanski
14 * \author Jürgen Vigna
16 * Full author contact details are available in file CREDITS.
25 #include "buffer_funcs.h"
26 #include "BufferParams.h"
27 #include "BufferView.h"
28 #include "bufferview_funcs.h"
30 #include "ParIterator.h"
31 #include "CoordCache.h"
32 #include "CutAndPaste.h"
34 #include "DispatchResult.h"
36 #include "ErrorList.h"
37 #include "FuncRequest.h"
39 #include "FontIterator.h"
47 #include "MetricsInfo.h"
48 #include "Paragraph.h"
49 #include "paragraph_funcs.h"
50 #include "ParagraphParameters.h"
51 #include "rowpainter.h"
54 #include "WordLangTuple.h"
56 #include "frontends/FontMetrics.h"
57 #include "frontends/Painter.h"
59 #include "insets/InsetText.h"
60 #include "insets/InsetBibitem.h"
61 #include "insets/InsetCaption.h"
62 #include "insets/InsetHFill.h"
63 #include "insets/InsetLine.h"
64 #include "insets/InsetNewline.h"
65 #include "insets/InsetPagebreak.h"
66 #include "insets/InsetOptArg.h"
67 #include "insets/InsetSpace.h"
68 #include "insets/InsetSpecialChar.h"
69 #include "insets/InsetTabular.h"
71 #include "support/lstrings.h"
72 #include "support/textutils.h"
73 #include "support/convert.h"
75 #include <boost/current_function.hpp>
89 using support::bformat;
90 using support::contains;
91 using support::lowercase;
93 using support::uppercase;
95 using cap::cutSelection;
96 using cap::pasteParagraphList;
98 using frontend::FontMetrics;
102 void readParToken(Buffer const & buf, Paragraph & par, Lexer & lex,
103 string const & token, Font & font, Change & change, ErrorList & errorList)
105 BufferParams const & bp = buf.params();
107 if (token[0] != '\\') {
109 string::const_iterator cit = token.begin();
110 for (; cit != token.end(); ++cit)
111 par.insertChar(par.size(), (*cit), font, change);
113 docstring dstr = lex.getDocString();
114 docstring::const_iterator cit = dstr.begin();
115 docstring::const_iterator cend = dstr.end();
116 for (; cit != cend; ++cit)
117 par.insertChar(par.size(), *cit, font, change);
119 } else if (token == "\\begin_layout") {
121 docstring layoutname = lex.getDocString();
123 font = Font(Font::ALL_INHERIT, bp.language);
124 change = Change(Change::UNCHANGED);
126 TextClass const & tclass = bp.getTextClass();
128 if (layoutname.empty()) {
129 layoutname = tclass.defaultLayoutName();
132 bool hasLayout = tclass.hasLayout(layoutname);
135 errorList.push_back(ErrorItem(_("Unknown layout"),
136 bformat(_("Layout '%1$s' does not exist in textclass '%2$s'\nTrying to use the default instead.\n"),
137 layoutname, from_utf8(tclass.name())), par.id(), 0, par.size()));
138 layoutname = tclass.defaultLayoutName();
141 par.layout(bp.getTextClass()[layoutname]);
143 // Test whether the layout is obsolete.
144 Layout_ptr const & layout = par.layout();
145 if (!layout->obsoleted_by().empty())
146 par.layout(bp.getTextClass()[layout->obsoleted_by()]);
148 par.params().read(lex);
150 } else if (token == "\\end_layout") {
151 lyxerr << BOOST_CURRENT_FUNCTION
152 << ": Solitary \\end_layout in line "
153 << lex.getLineNo() << "\n"
154 << "Missing \\begin_layout?.\n";
155 } else if (token == "\\end_inset") {
156 lyxerr << BOOST_CURRENT_FUNCTION
157 << ": Solitary \\end_inset in line "
158 << lex.getLineNo() << "\n"
159 << "Missing \\begin_inset?.\n";
160 } else if (token == "\\begin_inset") {
161 Inset * inset = readInset(lex, buf);
163 par.insertInset(par.size(), inset, font, change);
166 docstring line = lex.getDocString();
167 errorList.push_back(ErrorItem(_("Unknown Inset"), line,
168 par.id(), 0, par.size()));
170 } else if (token == "\\family") {
172 font.setLyXFamily(lex.getString());
173 } else if (token == "\\series") {
175 font.setLyXSeries(lex.getString());
176 } else if (token == "\\shape") {
178 font.setLyXShape(lex.getString());
179 } else if (token == "\\size") {
181 font.setLyXSize(lex.getString());
182 } else if (token == "\\lang") {
184 string const tok = lex.getString();
185 Language const * lang = languages.getLanguage(tok);
187 font.setLanguage(lang);
189 font.setLanguage(bp.language);
190 lex.printError("Unknown language `$$Token'");
192 } else if (token == "\\numeric") {
194 font.setNumber(font.setLyXMisc(lex.getString()));
195 } else if (token == "\\emph") {
197 font.setEmph(font.setLyXMisc(lex.getString()));
198 } else if (token == "\\bar") {
200 string const tok = lex.getString();
203 font.setUnderbar(Font::ON);
204 else if (tok == "no")
205 font.setUnderbar(Font::OFF);
206 else if (tok == "default")
207 font.setUnderbar(Font::INHERIT);
209 lex.printError("Unknown bar font flag "
211 } else if (token == "\\noun") {
213 font.setNoun(font.setLyXMisc(lex.getString()));
214 } else if (token == "\\color") {
216 font.setLyXColor(lex.getString());
217 } else if (token == "\\InsetSpace" || token == "\\SpecialChar") {
219 // Insets don't make sense in a free-spacing context! ---Kayvan
220 if (par.isFreeSpacing()) {
221 if (token == "\\InsetSpace")
222 par.insertChar(par.size(), ' ', font, change);
223 else if (lex.isOK()) {
225 string const next_token = lex.getString();
226 if (next_token == "\\-")
227 par.insertChar(par.size(), '-', font, change);
229 lex.printError("Token `$$Token' "
231 "paragraph layout!");
235 auto_ptr<Inset> inset;
236 if (token == "\\SpecialChar" )
237 inset.reset(new InsetSpecialChar);
239 inset.reset(new InsetSpace);
240 inset->read(buf, lex);
241 par.insertInset(par.size(), inset.release(),
244 } else if (token == "\\backslash") {
245 par.insertChar(par.size(), '\\', font, change);
246 } else if (token == "\\newline") {
247 auto_ptr<Inset> inset(new InsetNewline);
248 inset->read(buf, lex);
249 par.insertInset(par.size(), inset.release(), font, change);
250 } else if (token == "\\LyXTable") {
251 auto_ptr<Inset> inset(new InsetTabular(buf));
252 inset->read(buf, lex);
253 par.insertInset(par.size(), inset.release(), font, change);
254 } else if (token == "\\hfill") {
255 par.insertInset(par.size(), new InsetHFill, font, change);
256 } else if (token == "\\lyxline") {
257 par.insertInset(par.size(), new InsetLine, font, change);
258 } else if (token == "\\newpage") {
259 par.insertInset(par.size(), new InsetPagebreak, font, change);
260 } else if (token == "\\clearpage") {
261 par.insertInset(par.size(), new InsetClearPage, font, change);
262 } else if (token == "\\cleardoublepage") {
263 par.insertInset(par.size(), new InsetClearDoublePage, font, change);
264 } else if (token == "\\change_unchanged") {
265 change = Change(Change::UNCHANGED);
266 } else if (token == "\\change_inserted") {
268 std::istringstream is(lex.getString());
272 if (aid >= bp.author_map.size()) {
273 errorList.push_back(ErrorItem(_("Change tracking error"),
274 bformat(_("Unknown author index for insertion: %1$d\n"), aid),
275 par.id(), 0, par.size()));
276 change = Change(Change::UNCHANGED);
278 change = Change(Change::INSERTED, bp.author_map[aid], ct);
279 } else if (token == "\\change_deleted") {
281 std::istringstream is(lex.getString());
285 if (aid >= bp.author_map.size()) {
286 errorList.push_back(ErrorItem(_("Change tracking error"),
287 bformat(_("Unknown author index for deletion: %1$d\n"), aid),
288 par.id(), 0, par.size()));
289 change = Change(Change::UNCHANGED);
291 change = Change(Change::DELETED, bp.author_map[aid], ct);
294 errorList.push_back(ErrorItem(_("Unknown token"),
295 bformat(_("Unknown token: %1$s %2$s\n"), from_utf8(token),
297 par.id(), 0, par.size()));
302 void readParagraph(Buffer const & buf, Paragraph & par, Lexer & lex,
303 ErrorList & errorList)
306 string token = lex.getString();
308 Change change(Change::UNCHANGED);
311 readParToken(buf, par, lex, token, font, change, errorList);
314 token = lex.getString();
319 if (token == "\\end_layout") {
320 //Ok, paragraph finished
324 LYXERR(Debug::PARSER) << "Handling paragraph token: `"
325 << token << '\'' << endl;
326 if (token == "\\begin_layout" || token == "\\end_document"
327 || token == "\\end_inset" || token == "\\begin_deeper"
328 || token == "\\end_deeper") {
329 lex.pushToken(token);
330 lyxerr << "Paragraph ended in line "
331 << lex.getLineNo() << "\n"
332 << "Missing \\end_layout.\n";
336 // Final change goes to paragraph break:
337 par.setChange(par.size(), change);
339 // Initialize begin_of_body_ on load; redoParagraph maintains
340 par.setBeginOfBody();
347 bool Text::empty() const
349 return pars_.empty() || (pars_.size() == 1 && pars_[0].empty()
350 // FIXME: Should we consider the labeled type as empty too?
351 && pars_[0].layout()->labeltype == LABEL_NO_LABEL);
355 double Text::spacing(Buffer const & buffer,
356 Paragraph const & par) const
358 if (par.params().spacing().isDefault())
359 return buffer.params().spacing().getValue();
360 return par.params().spacing().getValue();
364 int Text::leftMargin(Buffer const & buffer, int max_width, pit_type pit) const
366 BOOST_ASSERT(pit >= 0);
367 BOOST_ASSERT(pit < int(pars_.size()));
368 return leftMargin(buffer, max_width, pit, pars_[pit].size());
372 int Text::leftMargin(Buffer const & buffer, int max_width,
373 pit_type const pit, pos_type const pos) const
375 BOOST_ASSERT(pit >= 0);
376 BOOST_ASSERT(pit < int(pars_.size()));
377 Paragraph const & par = pars_[pit];
378 BOOST_ASSERT(pos >= 0);
379 BOOST_ASSERT(pos <= par.size());
380 //lyxerr << "Text::leftMargin: pit: " << pit << " pos: " << pos << endl;
381 TextClass const & tclass = buffer.params().getTextClass();
382 Layout_ptr const & layout = par.layout();
384 docstring parindent = layout->parindent;
388 if (isMainText(buffer))
389 l_margin += changebarMargin();
391 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(
392 tclass.leftmargin());
394 if (par.getDepth() != 0) {
395 // find the next level paragraph
396 pit_type newpar = outerHook(pit, pars_);
397 if (newpar != pit_type(pars_.size())) {
398 if (pars_[newpar].layout()->isEnvironment()) {
399 l_margin = leftMargin(buffer, max_width, newpar);
401 if (par.layout() == tclass.defaultLayout()) {
402 if (pars_[newpar].params().noindent())
405 parindent = pars_[newpar].layout()->parindent;
410 // This happens after sections in standard classes. The 1.3.x
411 // code compared depths too, but it does not seem necessary
413 if (par.layout() == tclass.defaultLayout()
414 && pit > 0 && pars_[pit - 1].layout()->nextnoindent)
417 Font const labelfont = getLabelFont(buffer, par);
418 FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
420 switch (layout->margintype) {
422 if (!layout->leftmargin.empty()) {
423 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(
426 if (!par.getLabelstring().empty()) {
427 l_margin += labelfont_metrics.signedWidth(layout->labelindent);
428 l_margin += labelfont_metrics.width(par.getLabelstring());
429 l_margin += labelfont_metrics.width(layout->labelsep);
433 case MARGIN_MANUAL: {
434 l_margin += labelfont_metrics.signedWidth(layout->labelindent);
435 // The width of an empty par, even with manual label, should be 0
436 if (!par.empty() && pos >= par.beginOfBody()) {
437 if (!par.getLabelWidthString().empty()) {
438 docstring labstr = par.getLabelWidthString();
439 l_margin += labelfont_metrics.width(labstr);
440 l_margin += labelfont_metrics.width(layout->labelsep);
446 case MARGIN_STATIC: {
447 l_margin += theFontMetrics(buffer.params().getFont()).
448 signedWidth(layout->leftmargin) * 4 / (par.getDepth() + 4);
452 case MARGIN_FIRST_DYNAMIC:
453 if (layout->labeltype == LABEL_MANUAL) {
454 if (pos >= par.beginOfBody()) {
455 l_margin += labelfont_metrics.signedWidth(layout->leftmargin);
457 l_margin += labelfont_metrics.signedWidth(layout->labelindent);
460 // Special case to fix problems with
462 || (layout->labeltype == LABEL_STATIC
463 && layout->latextype == LATEX_ENVIRONMENT
464 && !isFirstInSequence(pit, pars_))) {
465 l_margin += labelfont_metrics.signedWidth(layout->leftmargin);
466 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
467 && layout->labeltype != LABEL_BIBLIO
468 && layout->labeltype !=
469 LABEL_CENTERED_TOP_ENVIRONMENT) {
470 l_margin += labelfont_metrics.signedWidth(layout->labelindent);
471 l_margin += labelfont_metrics.width(layout->labelsep);
472 l_margin += labelfont_metrics.width(par.getLabelstring());
476 case MARGIN_RIGHT_ADDRESS_BOX: {
478 // ok, a terrible hack. The left margin depends on the widest
479 // row in this paragraph.
480 RowList::iterator rit = par.rows().begin();
481 RowList::iterator end = par.rows().end();
482 // FIXME: This is wrong.
483 int minfill = max_width;
484 for ( ; rit != end; ++rit)
485 if (rit->fill() < minfill)
486 minfill = rit->fill();
487 l_margin += theFontMetrics(params.getFont()).signedWidth(layout->leftmargin);
490 // also wrong, but much shorter.
491 l_margin += max_width / 2;
496 if (!par.params().leftIndent().zero())
497 l_margin += par.params().leftIndent().inPixels(max_width);
501 if (par.params().align() == LYX_ALIGN_LAYOUT)
502 align = layout->align;
504 align = par.params().align();
506 // set the correct parindent
508 && (layout->labeltype == LABEL_NO_LABEL
509 || layout->labeltype == LABEL_TOP_ENVIRONMENT
510 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
511 || (layout->labeltype == LABEL_STATIC
512 && layout->latextype == LATEX_ENVIRONMENT
513 && !isFirstInSequence(pit, pars_)))
514 && align == LYX_ALIGN_BLOCK
515 && !par.params().noindent()
516 // in some insets, paragraphs are never indented
517 && !(par.inInset() && par.inInset()->neverIndent(buffer))
518 // display style insets are always centered, omit indentation
521 && par.getInset(pos)->display())
522 && (par.layout() != tclass.defaultLayout()
523 || buffer.params().paragraph_separation ==
524 BufferParams::PARSEP_INDENT))
526 l_margin += theFontMetrics(buffer.params().getFont()).signedWidth(
534 Color_color Text::backgroundColor() const
536 return Color_color(Color::color(background_color_));
540 void Text::breakParagraph(Cursor & cur, bool keep_layout)
542 BOOST_ASSERT(this == cur.text());
544 Paragraph & cpar = cur.paragraph();
545 pit_type cpit = cur.pit();
547 TextClass const & tclass = cur.buffer().params().getTextClass();
548 Layout_ptr const & layout = cpar.layout();
550 // this is only allowed, if the current paragraph is not empty
551 // or caption and if it has not the keepempty flag active
552 if (cur.lastpos() == 0 && !cpar.allowEmpty() &&
553 layout->labeltype != LABEL_SENSITIVE)
556 // a layout change may affect also the following paragraph
557 recUndo(cur, cur.pit(), undoSpan(cur.pit()) - 1);
559 // Always break behind a space
560 // It is better to erase the space (Dekel)
561 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
562 cpar.eraseChar(cur.pos(), cur.buffer().params().trackChanges);
564 // What should the layout for the new paragraph be?
565 int preserve_layout = 0;
569 preserve_layout = layout->isEnvironment();
571 // We need to remember this before we break the paragraph, because
572 // that invalidates the layout variable
573 bool sensitive = layout->labeltype == LABEL_SENSITIVE;
575 // we need to set this before we insert the paragraph.
576 bool const isempty = cpar.allowEmpty() && cpar.empty();
578 lyx::breakParagraph(cur.buffer().params(), paragraphs(), cpit,
579 cur.pos(), preserve_layout);
581 // After this, neither paragraph contains any rows!
584 pit_type next_par = cpit + 1;
586 // well this is the caption hack since one caption is really enough
589 // set to standard-layout
590 pars_[cpit].applyLayout(tclass.defaultLayout());
592 // set to standard-layout
593 pars_[next_par].applyLayout(tclass.defaultLayout());
596 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0)) {
597 if (!pars_[next_par].eraseChar(0, cur.buffer().params().trackChanges))
598 break; // the character couldn't be deleted physically due to change tracking
601 updateLabels(cur.buffer());
603 // A singlePar update is not enough in this case.
604 cur.updateFlags(Update::Force);
606 // This check is necessary. Otherwise the new empty paragraph will
607 // be deleted automatically. And it is more friendly for the user!
608 if (cur.pos() != 0 || isempty)
609 setCursor(cur, cur.pit() + 1, 0);
611 setCursor(cur, cur.pit(), 0);
615 // insert a character, moves all the following breaks in the
616 // same Paragraph one to the right and make a rebreak
617 void Text::insertChar(Cursor & cur, char_type c)
619 BOOST_ASSERT(this == cur.text());
620 BOOST_ASSERT(c != Paragraph::META_INSET);
622 recordUndo(cur, Undo::INSERT);
624 Buffer const & buffer = cur.buffer();
625 Paragraph & par = cur.paragraph();
626 // try to remove this
627 pit_type const pit = cur.pit();
629 bool const freeSpacing = par.layout()->free_spacing ||
632 if (lyxrc.auto_number) {
633 static docstring const number_operators = from_ascii("+-/*");
634 static docstring const number_unary_operators = from_ascii("+-");
635 static docstring const number_seperators = from_ascii(".,:");
637 if (current_font.number() == Font::ON) {
638 if (!isDigit(c) && !contains(number_operators, c) &&
639 !(contains(number_seperators, c) &&
641 cur.pos() != cur.lastpos() &&
642 getFont(buffer, par, cur.pos()).number() == Font::ON &&
643 getFont(buffer, par, cur.pos() - 1).number() == Font::ON)
645 number(cur); // Set current_font.number to OFF
646 } else if (isDigit(c) &&
647 real_current_font.isVisibleRightToLeft()) {
648 number(cur); // Set current_font.number to ON
650 if (cur.pos() != 0) {
651 char_type const c = par.getChar(cur.pos() - 1);
652 if (contains(number_unary_operators, c) &&
654 || par.isSeparator(cur.pos() - 2)
655 || par.isNewline(cur.pos() - 2))
657 setCharFont(buffer, pit, cur.pos() - 1, current_font);
658 } else if (contains(number_seperators, c)
660 && getFont(buffer, par, cur.pos() - 2).number() == Font::ON) {
661 setCharFont(buffer, pit, cur.pos() - 1, current_font);
667 // In Bidi text, we want spaces to be treated in a special way: spaces
668 // which are between words in different languages should get the
669 // paragraph's language; otherwise, spaces should keep the language
670 // they were originally typed in. This is only in effect while typing;
671 // after the text is already typed in, the user can always go back and
672 // explicitly set the language of a space as desired. But 99.9% of the
673 // time, what we're doing here is what the user actually meant.
675 // The following cases are the ones in which the language of the space
676 // should be changed to match that of the containing paragraph. In the
677 // depictions, lowercase is LTR, uppercase is RTL, underscore (_)
678 // represents a space, pipe (|) represents the cursor position (so the
679 // character before it is the one just typed in). The different cases
680 // are depicted logically (not visually), from left to right:
685 // Theoretically, there are other situations that we should, perhaps, deal
686 // with (e.g.: a|_A, A|_a). In practice, though, there really isn't any
687 // point (to understand why, just try to create this situation...).
689 if ((cur.pos() >= 2) && (par.isLineSeparator(cur.pos() - 1))) {
690 // get font in front and behind the space in question. But do NOT
691 // use getFont(cur.pos()) because the character c is not inserted yet
692 Font const & pre_space_font = getFont(buffer, par, cur.pos() - 2);
693 Font const & post_space_font = real_current_font;
694 bool pre_space_rtl = pre_space_font.isVisibleRightToLeft();
695 bool post_space_rtl = post_space_font.isVisibleRightToLeft();
697 if (pre_space_rtl != post_space_rtl) {
698 // Set the space's language to match the language of the
699 // adjacent character whose direction is the paragraph's
700 // direction; don't touch other properties of the font
701 Language const * lang =
702 (pre_space_rtl == par.isRightToLeftPar(buffer.params())) ?
703 pre_space_font.language() : post_space_font.language();
705 Font space_font = getFont(buffer, par, cur.pos() - 1);
706 space_font.setLanguage(lang);
707 par.setFont(cur.pos() - 1, space_font);
711 // Next check, if there will be two blanks together or a blank at
712 // the beginning of a paragraph.
713 // I decided to handle blanks like normal characters, the main
714 // difference are the special checks when calculating the row.fill
715 // (blank does not count at the end of a row) and the check here
717 // When the free-spacing option is set for the current layout,
718 // disable the double-space checking
719 if (!freeSpacing && isLineSeparatorChar(c)) {
720 if (cur.pos() == 0) {
721 static bool sent_space_message = false;
722 if (!sent_space_message) {
723 cur.message(_("You cannot insert a space at the "
724 "beginning of a paragraph. Please read the Tutorial."));
725 sent_space_message = true;
729 BOOST_ASSERT(cur.pos() > 0);
730 if ((par.isLineSeparator(cur.pos() - 1) || par.isNewline(cur.pos() - 1))
731 && !par.isDeleted(cur.pos() - 1)) {
732 static bool sent_space_message = false;
733 if (!sent_space_message) {
734 cur.message(_("You cannot type two spaces this way. "
735 "Please read the Tutorial."));
736 sent_space_message = true;
742 par.insertChar(cur.pos(), c, current_font, cur.buffer().params().trackChanges);
743 checkBufferStructure(cur.buffer(), cur);
745 // cur.updateFlags(Update::Force);
746 setCursor(cur.top(), cur.pit(), cur.pos() + 1);
751 void Text::charInserted()
753 // Here we call finishUndo for every 20 characters inserted.
754 // This is from my experience how emacs does it. (Lgb)
755 static unsigned int counter;
765 // the cursor set functions have a special mechanism. When they
766 // realize, that you left an empty paragraph, they will delete it.
768 bool Text::cursorRightOneWord(Cursor & cur)
770 BOOST_ASSERT(this == cur.text());
774 if (old.pos() == old.lastpos() && old.pit() != old.lastpit()) {
778 // Advance through word.
779 while (old.pos() != old.lastpos() && old.paragraph().isLetter(old.pos()))
781 // Skip through trailing nonword stuff.
782 while (old.pos() != old.lastpos() && !old.paragraph().isLetter(old.pos()))
785 return setCursor(cur, old.pit(), old.pos());
789 bool Text::cursorLeftOneWord(Cursor & cur)
791 BOOST_ASSERT(this == cur.text());
795 if (old.pos() == 0 && old.pit() != 0) {
797 old.pos() = old.lastpos();
799 // Skip through initial nonword stuff.
800 while (old.pos() != 0 && !old.paragraph().isLetter(old.pos() - 1))
802 // Advance through word.
803 while (old.pos() != 0 && old.paragraph().isLetter(old.pos() - 1))
806 return setCursor(cur, old.pit(), old.pos());
810 void Text::selectWord(Cursor & cur, word_location loc)
812 BOOST_ASSERT(this == cur.text());
813 CursorSlice from = cur.top();
814 CursorSlice to = cur.top();
815 getWord(from, to, loc);
816 if (cur.top() != from)
817 setCursor(cur, from.pit(), from.pos());
821 setCursor(cur, to.pit(), to.pos());
826 // Select the word currently under the cursor when no
827 // selection is currently set
828 bool Text::selectWordWhenUnderCursor(Cursor & cur, word_location loc)
830 BOOST_ASSERT(this == cur.text());
833 selectWord(cur, loc);
834 return cur.selection();
838 void Text::acceptOrRejectChanges(Cursor & cur, ChangeOp op)
840 BOOST_ASSERT(this == cur.text());
842 if (!cur.selection())
845 recordUndoSelection(cur, Undo::ATOMIC);
847 pit_type begPit = cur.selectionBegin().pit();
848 pit_type endPit = cur.selectionEnd().pit();
850 pos_type begPos = cur.selectionBegin().pos();
851 pos_type endPos = cur.selectionEnd().pos();
853 // keep selection info, because endPos becomes invalid after the first loop
854 bool endsBeforeEndOfPar = (endPos < pars_[endPit].size());
856 // first, accept/reject changes within each individual paragraph (do not consider end-of-par)
858 for (pit_type pit = begPit; pit <= endPit; ++pit) {
859 pos_type parSize = pars_[pit].size();
861 // ignore empty paragraphs; otherwise, an assertion will fail for
862 // acceptChanges(bparams, 0, 0) or rejectChanges(bparams, 0, 0)
866 // do not consider first paragraph if the cursor starts at pos size()
867 if (pit == begPit && begPos == parSize)
870 // do not consider last paragraph if the cursor ends at pos 0
871 if (pit == endPit && endPos == 0)
872 break; // last iteration anyway
874 pos_type left = (pit == begPit ? begPos : 0);
875 pos_type right = (pit == endPit ? endPos : parSize);
878 pars_[pit].acceptChanges(cur.buffer().params(), left, right);
880 pars_[pit].rejectChanges(cur.buffer().params(), left, right);
884 // next, accept/reject imaginary end-of-par characters
886 for (pit_type pit = begPit; pit <= endPit; ++pit) {
887 pos_type pos = pars_[pit].size();
889 // skip if the selection ends before the end-of-par
890 if (pit == endPit && endsBeforeEndOfPar)
891 break; // last iteration anyway
893 // skip if this is not the last paragraph of the document
894 // note: the user should be able to accept/reject the par break of the last par!
895 if (pit == endPit && pit + 1 != int(pars_.size()))
896 break; // last iteration anway
899 if (pars_[pit].isInserted(pos)) {
900 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
901 } else if (pars_[pit].isDeleted(pos)) {
902 if (pit + 1 == int(pars_.size())) {
903 // we cannot remove a par break at the end of the last paragraph;
904 // instead, we mark it unchanged
905 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
907 mergeParagraph(cur.buffer().params(), pars_, pit);
913 if (pars_[pit].isDeleted(pos)) {
914 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
915 } else if (pars_[pit].isInserted(pos)) {
916 if (pit + 1 == int(pars_.size())) {
917 // we mark the par break at the end of the last paragraph unchanged
918 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
920 mergeParagraph(cur.buffer().params(), pars_, pit);
928 // finally, invoke the DEPM
930 deleteEmptyParagraphMechanism(begPit, endPit, cur.buffer().params().trackChanges);
935 cur.clearSelection();
936 setCursorIntern(cur, begPit, begPos);
937 cur.updateFlags(Update::Force);
938 updateLabels(cur.buffer());
942 void Text::acceptChanges(BufferParams const & bparams)
944 lyx::acceptChanges(pars_, bparams);
945 deleteEmptyParagraphMechanism(0, pars_.size() - 1, bparams.trackChanges);
949 void Text::rejectChanges(BufferParams const & bparams)
951 pit_type pars_size = static_cast<pit_type>(pars_.size());
953 // first, reject changes within each individual paragraph
954 // (do not consider end-of-par)
955 for (pit_type pit = 0; pit < pars_size; ++pit) {
956 if (!pars_[pit].empty()) // prevent assertion failure
957 pars_[pit].rejectChanges(bparams, 0, pars_[pit].size());
960 // next, reject imaginary end-of-par characters
961 for (pit_type pit = 0; pit < pars_size; ++pit) {
962 pos_type pos = pars_[pit].size();
964 if (pars_[pit].isDeleted(pos)) {
965 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
966 } else if (pars_[pit].isInserted(pos)) {
967 if (pit == pars_size - 1) {
968 // we mark the par break at the end of the last
969 // paragraph unchanged
970 pars_[pit].setChange(pos, Change(Change::UNCHANGED));
972 mergeParagraph(bparams, pars_, pit);
979 // finally, invoke the DEPM
980 deleteEmptyParagraphMechanism(0, pars_size - 1, bparams.trackChanges);
984 // Delete from cursor up to the end of the current or next word.
985 void Text::deleteWordForward(Cursor & cur)
987 BOOST_ASSERT(this == cur.text());
988 if (cur.lastpos() == 0)
992 cur.selection() = true;
993 cursorRightOneWord(cur);
995 cutSelection(cur, true, false);
996 checkBufferStructure(cur.buffer(), cur);
1001 // Delete from cursor to start of current or prior word.
1002 void Text::deleteWordBackward(Cursor & cur)
1004 BOOST_ASSERT(this == cur.text());
1005 if (cur.lastpos() == 0)
1009 cur.selection() = true;
1010 cursorLeftOneWord(cur);
1012 cutSelection(cur, true, false);
1013 checkBufferStructure(cur.buffer(), cur);
1018 // Kill to end of line.
1019 void Text::deleteLineForward(Cursor & cur)
1021 BOOST_ASSERT(this == cur.text());
1022 if (cur.lastpos() == 0) {
1023 // Paragraph is empty, so we just go to the right
1027 cur.selection() = true; // to avoid deletion
1030 // What is this test for ??? (JMarc)
1031 if (!cur.selection())
1032 deleteWordForward(cur);
1034 cutSelection(cur, true, false);
1035 checkBufferStructure(cur.buffer(), cur);
1040 void Text::changeCase(Cursor & cur, Text::TextCase action)
1042 BOOST_ASSERT(this == cur.text());
1046 if (cur.selection()) {
1047 from = cur.selBegin();
1051 getWord(from, to, PARTIAL_WORD);
1052 cursorRightOneWord(cur);
1055 recordUndoSelection(cur, Undo::ATOMIC);
1057 pit_type begPit = from.pit();
1058 pit_type endPit = to.pit();
1060 pos_type begPos = from.pos();
1061 pos_type endPos = to.pos();
1063 bool const trackChanges = cur.buffer().params().trackChanges;
1065 pos_type right = 0; // needed after the for loop
1067 for (pit_type pit = begPit; pit <= endPit; ++pit) {
1068 pos_type parSize = pars_[pit].size();
1070 pos_type pos = (pit == begPit ? begPos : 0);
1071 right = (pit == endPit ? endPos : parSize);
1073 // process sequences of modified characters; in change
1074 // tracking mode, this approach results in much better
1075 // usability than changing case on a char-by-char basis
1078 bool capitalize = true;
1080 for (; pos < right; ++pos) {
1081 char_type oldChar = pars_[pit].getChar(pos);
1082 char_type newChar = oldChar;
1084 // ignore insets and don't play with deleted text!
1085 if (oldChar != Paragraph::META_INSET && !pars_[pit].isDeleted(pos)) {
1087 case text_lowercase:
1088 newChar = lowercase(oldChar);
1090 case text_capitalization:
1092 newChar = uppercase(oldChar);
1096 case text_uppercase:
1097 newChar = uppercase(oldChar);
1102 if (!pars_[pit].isLetter(pos) || pars_[pit].isDeleted(pos)) {
1103 capitalize = true; // permit capitalization again
1106 if (oldChar != newChar) {
1110 if (oldChar == newChar || pos == right - 1) {
1111 if (oldChar != newChar) {
1112 pos++; // step behind the changing area
1114 int erasePos = pos - changes.size();
1115 for (size_t i = 0; i < changes.size(); i++) {
1116 pars_[pit].insertChar(pos, changes[i],
1117 pars_[pit].getFontSettings(cur.buffer().params(),
1120 if (!pars_[pit].eraseChar(erasePos, trackChanges)) {
1123 ++right; // expand selection
1131 // the selection may have changed due to logically-only deleted chars
1132 setCursor(cur, begPit, begPos);
1134 setCursor(cur, endPit, right);
1137 checkBufferStructure(cur.buffer(), cur);
1141 bool Text::handleBibitems(Cursor & cur)
1143 if (cur.paragraph().layout()->labeltype != LABEL_BIBLIO)
1145 // if a bibitem is deleted, merge with previous paragraph
1146 // if this is a bibliography item as well
1147 if (cur.pos() == 0) {
1148 BufferParams const & bufparams = cur.buffer().params();
1149 Paragraph const & par = cur.paragraph();
1150 Cursor prevcur = cur;
1151 if (cur.pit() > 0) {
1153 prevcur.pos() = prevcur.lastpos();
1155 Paragraph const & prevpar = prevcur.paragraph();
1156 if (cur.pit() > 0 && par.layout() == prevpar.layout()) {
1157 recordUndo(cur, Undo::ATOMIC, prevcur.pit());
1158 mergeParagraph(bufparams, cur.text()->paragraphs(),
1160 updateLabels(cur.buffer());
1161 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1162 cur.updateFlags(Update::Force);
1163 // if not, reset the paragraph to default
1165 cur.paragraph().layout(
1166 bufparams.getTextClass().defaultLayout());
1173 bool Text::erase(Cursor & cur)
1175 BOOST_ASSERT(this == cur.text());
1176 bool needsUpdate = false;
1177 Paragraph & par = cur.paragraph();
1179 if (cur.pos() != cur.lastpos()) {
1180 // this is the code for a normal delete, not pasting
1182 recordUndo(cur, Undo::DELETE);
1183 if(!par.eraseChar(cur.pos(), cur.buffer().params().trackChanges)) {
1184 // the character has been logically deleted only => skip it
1185 cur.top().forwardPos();
1187 checkBufferStructure(cur.buffer(), cur);
1190 if (cur.pit() == cur.lastpit())
1191 return dissolveInset(cur);
1193 if (!par.isMergedOnEndOfParDeletion(cur.buffer().params().trackChanges)) {
1194 par.setChange(cur.pos(), Change(Change::DELETED));
1198 setCursorIntern(cur, cur.pit() + 1, 0);
1199 needsUpdate = backspacePos0(cur);
1203 needsUpdate |= handleBibitems(cur);
1206 // Make sure the cursor is correct. Is this really needed?
1207 // No, not really... at least not here!
1208 cur.text()->setCursor(cur.top(), cur.pit(), cur.pos());
1209 checkBufferStructure(cur.buffer(), cur);
1216 bool Text::backspacePos0(Cursor & cur)
1218 BOOST_ASSERT(this == cur.text());
1222 bool needsUpdate = false;
1224 BufferParams const & bufparams = cur.buffer().params();
1225 TextClass const & tclass = bufparams.getTextClass();
1226 ParagraphList & plist = cur.text()->paragraphs();
1227 Paragraph const & par = cur.paragraph();
1228 Cursor prevcur = cur;
1230 prevcur.pos() = prevcur.lastpos();
1231 Paragraph const & prevpar = prevcur.paragraph();
1233 // is it an empty paragraph?
1234 if (cur.lastpos() == 0
1235 || (cur.lastpos() == 1 && par.isSeparator(0))) {
1236 recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
1237 plist.erase(boost::next(plist.begin(), cur.pit()));
1240 // is previous par empty?
1241 else if (prevcur.lastpos() == 0
1242 || (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
1243 recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
1244 plist.erase(boost::next(plist.begin(), prevcur.pit()));
1247 // Pasting is not allowed, if the paragraphs have different
1248 // layouts. I think it is a real bug of all other
1249 // word processors to allow it. It confuses the user.
1250 // Correction: Pasting is always allowed with standard-layout
1251 else if (par.layout() == prevpar.layout()
1252 || par.layout() == tclass.defaultLayout()) {
1253 recordUndo(cur, Undo::ATOMIC, prevcur.pit());
1254 mergeParagraph(bufparams, plist, prevcur.pit());
1259 updateLabels(cur.buffer());
1260 setCursorIntern(cur, prevcur.pit(), prevcur.pos());
1267 bool Text::backspace(Cursor & cur)
1269 BOOST_ASSERT(this == cur.text());
1270 bool needsUpdate = false;
1271 if (cur.pos() == 0) {
1273 return dissolveInset(cur);
1275 Paragraph & prev_par = pars_[cur.pit() - 1];
1277 if (!prev_par.isMergedOnEndOfParDeletion(cur.buffer().params().trackChanges)) {
1278 prev_par.setChange(prev_par.size(), Change(Change::DELETED));
1279 setCursorIntern(cur, cur.pit() - 1, prev_par.size());
1282 // The cursor is at the beginning of a paragraph, so
1283 // the backspace will collapse two paragraphs into one.
1284 needsUpdate = backspacePos0(cur);
1287 // this is the code for a normal backspace, not pasting
1289 recordUndo(cur, Undo::DELETE);
1290 // We used to do cursorLeftIntern() here, but it is
1291 // not a good idea since it triggers the auto-delete
1292 // mechanism. So we do a cursorLeftIntern()-lite,
1293 // without the dreaded mechanism. (JMarc)
1294 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1295 false, cur.boundary());
1296 cur.paragraph().eraseChar(cur.pos(), cur.buffer().params().trackChanges);
1297 checkBufferStructure(cur.buffer(), cur);
1300 if (cur.pos() == cur.lastpos())
1301 setCurrentFont(cur);
1303 needsUpdate |= handleBibitems(cur);
1305 // A singlePar update is not enough in this case.
1306 // cur.updateFlags(Update::Force);
1307 setCursor(cur.top(), cur.pit(), cur.pos());
1313 bool Text::dissolveInset(Cursor & cur) {
1314 BOOST_ASSERT(this == cur.text());
1316 if (isMainText(*cur.bv().buffer()) || cur.inset().nargs() != 1)
1319 recordUndoInset(cur);
1320 cur.selHandle(false);
1322 pos_type spos = cur.pos();
1323 pit_type spit = cur.pit();
1324 ParagraphList plist;
1325 if (cur.lastpit() != 0 || cur.lastpos() != 0)
1326 plist = paragraphs();
1328 // store cursor offset
1332 Buffer & b = cur.buffer();
1333 cur.paragraph().eraseChar(cur.pos(), b.params().trackChanges);
1334 if (!plist.empty()) {
1335 // ERT paragraphs have the Language latex_language.
1336 // This is invalid outside of ERT, so we need to
1337 // change it to the buffer language.
1338 ParagraphList::iterator it = plist.begin();
1339 ParagraphList::iterator it_end = plist.end();
1340 for (; it != it_end; it++) {
1341 it->changeLanguage(b.params(), latex_language,
1345 pasteParagraphList(cur, plist, b.params().textclass,
1346 b.errorList("Paste"));
1348 cur.pit() = std::min(cur.lastpit(), spit);
1349 cur.pos() = std::min(cur.lastpos(), spos);
1351 cur.clearSelection();
1357 // only used for inset right now. should also be used for main text
1358 void Text::draw(PainterInfo & pi, int x, int y) const
1360 paintTextInset(*this, pi, x, y);
1364 // only used for inset right now. should also be used for main text
1365 void Text::drawSelection(PainterInfo & pi, int x, int) const
1367 Cursor & cur = pi.base.bv->cursor();
1368 if (!cur.selection())
1370 if (!ptr_cmp(cur.text(), this))
1373 LYXERR(Debug::DEBUG)
1374 << BOOST_CURRENT_FUNCTION
1375 << "draw selection at " << x
1378 DocIterator beg = cur.selectionBegin();
1379 DocIterator end = cur.selectionEnd();
1381 BufferView & bv = *pi.base.bv;
1383 // the selection doesn't touch the visible screen?
1384 if (bv_funcs::status(&bv, beg) == bv_funcs::CUR_BELOW
1385 || bv_funcs::status(&bv, end) == bv_funcs::CUR_ABOVE)
1388 TextMetrics const & tm = bv.textMetrics(this);
1389 ParagraphMetrics const & pm1 = tm.parMetrics(beg.pit());
1390 ParagraphMetrics const & pm2 = tm.parMetrics(end.pit());
1391 Row const & row1 = pm1.getRow(beg.pos(), beg.boundary());
1392 Row const & row2 = pm2.getRow(end.pos(), end.boundary());
1396 bool const clipAbove =
1397 (bv_funcs::status(&bv, beg) == bv_funcs::CUR_ABOVE);
1401 middleTop = bv_funcs::getPos(bv, beg, beg.boundary()).y_ + row1.descent();
1405 bool const clipBelow =
1406 (bv_funcs::status(&bv, end) == bv_funcs::CUR_BELOW);
1408 middleBottom = bv.workHeight();
1410 middleBottom = bv_funcs::getPos(bv, end, end.boundary()).y_ - row2.ascent();
1412 // start and end in the same line?
1413 if (!(clipAbove || clipBelow) && &row1 == &row2)
1414 // then only draw this row's selection
1415 drawRowSelection(pi, x, row1, beg, end, false, false);
1419 DocIterator begRowEnd = beg;
1420 begRowEnd.pos() = row1.endpos();
1421 begRowEnd.boundary(true);
1423 // draw upper rectangle
1424 drawRowSelection(pi, x, row1, beg, begRowEnd, false, true);
1427 if (middleTop < middleBottom) {
1428 // draw middle rectangle
1429 pi.pain.fillRectangle(x, middleTop,
1430 tm.width(), middleBottom - middleTop,
1436 DocIterator endRowBeg = end;
1437 endRowBeg.pos() = row2.pos();
1438 endRowBeg.boundary(false);
1440 // draw low rectangle
1441 drawRowSelection(pi, x, row2, endRowBeg, end, true, false);
1447 void Text::drawRowSelection(PainterInfo & pi, int x, Row const & row,
1448 DocIterator const & beg, DocIterator const & end,
1449 bool drawOnBegMargin, bool drawOnEndMargin) const
1451 BufferView & bv = *pi.base.bv;
1452 Buffer & buffer = *bv.buffer();
1453 TextMetrics const & tm = bv.textMetrics(this);
1454 DocIterator cur = beg;
1455 int x1 = cursorX(bv, beg.top(), beg.boundary());
1456 int x2 = cursorX(bv, end.top(), end.boundary());
1457 int y1 = bv_funcs::getPos(bv, cur, cur.boundary()).y_ - row.ascent();
1458 int y2 = y1 + row.height();
1461 if (drawOnBegMargin) {
1462 if (isRTL(buffer, beg.paragraph()))
1463 pi.pain.fillRectangle(x + x1, y1, tm.width() - x1, y2 - y1, Color::selection);
1465 pi.pain.fillRectangle(x, y1, x1, y2 - y1, Color::selection);
1468 if (drawOnEndMargin) {
1469 if (isRTL(buffer, beg.paragraph()))
1470 pi.pain.fillRectangle(x, y1, x2, y2 - y1, Color::selection);
1472 pi.pain.fillRectangle(x + x2, y1, tm.width() - x2, y2 - y1, Color::selection);
1475 // if we are on a boundary from the beginning, it's probably
1476 // a RTL boundary and we jump to the other side directly as this
1477 // segement is 0-size and confuses the logic below
1479 cur.boundary(false);
1481 // go through row and draw from RTL boundary to RTL boundary
1483 bool drawNow = false;
1485 // simplified cursorRight code below which does not
1486 // descend into insets and which does not go into the
1487 // next line. Compare the logic with the original cursorRight
1489 // if left of boundary -> just jump to right side
1490 // but for RTL boundaries don't, because: abc|DDEEFFghi -> abcDDEEF|Fghi
1491 if (cur.boundary()) {
1492 cur.boundary(false);
1493 } else if (isRTLBoundary(buffer, cur.paragraph(), cur.pos() + 1)) {
1494 // in front of RTL boundary -> Stay on this side of the boundary because:
1495 // ab|cDDEEFFghi -> abc|DDEEFFghi
1504 if (cur.pos() == row.endpos())
1509 // the previous segment was just drawn, now the next starts
1510 x1 = cursorX(bv, cur.top(), cur.boundary());
1513 if (!(cur < end) || drawNow) {
1514 x2 = cursorX(bv, cur.top(), cur.boundary());
1515 pi.pain.fillRectangle(x + min(x1,x2), y1, abs(x2 - x1), y2 - y1,
1518 // reset x1, so it is set again next round (which will be on the
1519 // right side of a boundary or at the selection end)
1527 bool Text::isLastRow(pit_type pit, Row const & row) const
1529 return row.endpos() >= pars_[pit].size()
1530 && pit + 1 == pit_type(paragraphs().size());
1534 bool Text::isFirstRow(pit_type pit, Row const & row) const
1536 return row.pos() == 0 && pit == 0;
1540 void Text::getWord(CursorSlice & from, CursorSlice & to,
1541 word_location const loc)
1543 Paragraph const & from_par = pars_[from.pit()];
1545 case WHOLE_WORD_STRICT:
1546 if (from.pos() == 0 || from.pos() == from_par.size()
1547 || !from_par.isLetter(from.pos())
1548 || !from_par.isLetter(from.pos() - 1)) {
1552 // no break here, we go to the next
1555 // If we are already at the beginning of a word, do nothing
1556 if (!from.pos() || !from_par.isLetter(from.pos() - 1))
1558 // no break here, we go to the next
1561 // always move the cursor to the beginning of previous word
1562 while (from.pos() && from_par.isLetter(from.pos() - 1))
1566 lyxerr << "Text::getWord: NEXT_WORD not implemented yet"
1570 // no need to move the 'from' cursor
1574 Paragraph & to_par = pars_[to.pit()];
1575 while (to.pos() < to_par.size() && to_par.isLetter(to.pos()))
1580 void Text::write(Buffer const & buf, std::ostream & os) const
1582 ParagraphList::const_iterator pit = paragraphs().begin();
1583 ParagraphList::const_iterator end = paragraphs().end();
1585 for (; pit != end; ++pit)
1586 pit->write(buf, os, buf.params(), dth);
1588 // Close begin_deeper
1589 for(; dth > 0; --dth)
1590 os << "\n\\end_deeper";
1594 bool Text::read(Buffer const & buf, Lexer & lex, ErrorList & errorList)
1596 depth_type depth = 0;
1598 while (lex.isOK()) {
1600 string const token = lex.getString();
1605 if (token == "\\end_inset")
1608 if (token == "\\end_body")
1611 if (token == "\\begin_body")
1614 if (token == "\\end_document")
1617 if (token == "\\begin_layout") {
1618 lex.pushToken(token);
1621 par.params().depth(depth);
1622 par.setFont(0, Font(Font::ALL_INHERIT, buf.params().language));
1623 pars_.push_back(par);
1625 // FIXME: goddamn InsetTabular makes us pass a Buffer
1627 lyx::readParagraph(buf, pars_.back(), lex, errorList);
1629 } else if (token == "\\begin_deeper") {
1631 } else if (token == "\\end_deeper") {
1633 lex.printError("\\end_deeper: " "depth is already null");
1638 lyxerr << "Handling unknown body token: `"
1639 << token << '\'' << endl;
1645 int Text::cursorX(BufferView const & bv, CursorSlice const & sl,
1646 bool boundary) const
1648 TextMetrics const & tm = bv.textMetrics(sl.text());
1649 pit_type const pit = sl.pit();
1650 Paragraph const & par = pars_[pit];
1651 ParagraphMetrics const & pm = tm.parMetrics(pit);
1652 if (pm.rows().empty())
1655 pos_type ppos = sl.pos();
1656 // Correct position in front of big insets
1657 bool const boundary_correction = ppos != 0 && boundary;
1658 if (boundary_correction)
1661 Row const & row = pm.getRow(sl.pos(), boundary);
1663 pos_type cursor_vpos = 0;
1665 Buffer const & buffer = *bv.buffer();
1666 RowMetrics const m = tm.computeRowMetrics(pit, row);
1669 bidi.computeTables(par, buffer, row);
1671 pos_type const row_pos = row.pos();
1672 pos_type const end = row.endpos();
1673 // Spaces at logical line breaks in bidi text must be skipped during
1674 // cursor positioning. However, they may appear visually in the middle
1675 // of a row; they must be skipped, wherever they are...
1676 // * logically "abc_[HEBREW_\nHEBREW]"
1677 // * visually "abc_[_WERBEH\nWERBEH]"
1678 pos_type skipped_sep_vpos = -1;
1681 cursor_vpos = row_pos;
1682 else if (ppos >= end)
1683 cursor_vpos = isRTL(buffer, par) ? row_pos : end;
1684 else if (ppos > row_pos && ppos >= end)
1685 // Place cursor after char at (logical) position pos - 1
1686 cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
1687 ? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
1689 // Place cursor before char at (logical) position ppos
1690 cursor_vpos = (bidi.level(ppos) % 2 == 0)
1691 ? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
1693 pos_type body_pos = par.beginOfBody();
1695 (body_pos > end || !par.isLineSeparator(body_pos - 1)))
1698 // Use font span to speed things up, see below
1702 // If the last logical character is a separator, skip it, unless
1703 // it's in the last row of a paragraph; see skipped_sep_vpos declaration
1704 if (end > 0 && end < par.size() && par.isSeparator(end - 1))
1705 skipped_sep_vpos = bidi.log2vis(end - 1);
1707 for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
1708 // Skip the separator which is at the logical end of the row
1709 if (vpos == skipped_sep_vpos)
1711 pos_type pos = bidi.vis2log(vpos);
1712 if (body_pos > 0 && pos == body_pos - 1) {
1713 FontMetrics const & labelfm = theFontMetrics(
1714 getLabelFont(buffer, par));
1715 x += m.label_hfill + labelfm.width(par.layout()->labelsep);
1716 if (par.isLineSeparator(body_pos - 1))
1717 x -= tm.singleWidth(pit, body_pos - 1);
1720 // Use font span to speed things up, see above
1721 if (pos < font_span.first || pos > font_span.last) {
1722 font_span = par.fontSpan(pos);
1723 font = getFont(buffer, par, pos);
1726 x += pm.singleWidth(pos, font);
1728 if (par.hfillExpansion(row, pos))
1729 x += (pos >= body_pos) ? m.hfill : m.label_hfill;
1730 else if (par.isSeparator(pos) && pos >= body_pos)
1734 // see correction above
1735 if (boundary_correction) {
1736 if (isRTL(buffer, sl, boundary))
1737 x -= tm.singleWidth(pit, ppos);
1739 x += tm.singleWidth(pit, ppos);
1746 int Text::cursorY(BufferView const & bv, CursorSlice const & sl, bool boundary) const
1748 //lyxerr << "Text::cursorY: boundary: " << boundary << std::endl;
1749 ParagraphMetrics const & pm = bv.parMetrics(this, sl.pit());
1750 if (pm.rows().empty())
1754 h -= bv.parMetrics(this, 0).rows()[0].ascent();
1755 for (pit_type pit = 0; pit < sl.pit(); ++pit) {
1756 h += bv.parMetrics(this, pit).height();
1759 if (pos && boundary)
1761 size_t const rend = pm.pos2row(pos);
1762 for (size_t rit = 0; rit != rend; ++rit)
1763 h += pm.rows()[rit].height();
1764 h += pm.rows()[rend].ascent();
1769 // Returns the current font and depth as a message.
1770 docstring Text::currentState(Cursor & cur)
1772 BOOST_ASSERT(this == cur.text());
1773 Buffer & buf = cur.buffer();
1774 Paragraph const & par = cur.paragraph();
1775 odocstringstream os;
1777 if (buf.params().trackChanges)
1778 os << _("[Change Tracking] ");
1780 Change change = par.lookupChange(cur.pos());
1782 if (change.type != Change::UNCHANGED) {
1783 Author const & a = buf.params().authors().get(change.author);
1784 os << _("Change: ") << a.name();
1785 if (!a.email().empty())
1786 os << " (" << a.email() << ")";
1787 // FIXME ctime is english, we should translate that
1788 os << _(" at ") << ctime(&change.changetime);
1792 // I think we should only show changes from the default
1794 // No, from the document font (MV)
1795 Font font = real_current_font;
1796 font.reduce(buf.params().getFont());
1798 os << bformat(_("Font: %1$s"), font.stateText(&buf.params()));
1800 // The paragraph depth
1801 int depth = cur.paragraph().getDepth();
1803 os << bformat(_(", Depth: %1$d"), depth);
1805 // The paragraph spacing, but only if different from
1807 Spacing const & spacing = par.params().spacing();
1808 if (!spacing.isDefault()) {
1809 os << _(", Spacing: ");
1810 switch (spacing.getSpace()) {
1811 case Spacing::Single:
1814 case Spacing::Onehalf:
1817 case Spacing::Double:
1820 case Spacing::Other:
1821 os << _("Other (") << from_ascii(spacing.getValueAsString()) << ')';
1823 case Spacing::Default:
1824 // should never happen, do nothing
1829 #ifdef DEVEL_VERSION
1830 os << _(", Inset: ") << &cur.inset();
1831 os << _(", Paragraph: ") << cur.pit();
1832 os << _(", Id: ") << par.id();
1833 os << _(", Position: ") << cur.pos();
1834 // FIXME: Why is the check for par.size() needed?
1835 // We are called with cur.pos() == par.size() quite often.
1836 if (!par.empty() && cur.pos() < par.size()) {
1837 // Force output of code point, not character
1838 size_t const c = par.getChar(cur.pos());
1839 os << _(", Char: 0x") << std::hex << c;
1841 os << _(", Boundary: ") << cur.boundary();
1842 // Row & row = cur.textRow();
1843 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
1849 docstring Text::getPossibleLabel(Cursor & cur) const
1851 pit_type pit = cur.pit();
1853 Layout_ptr layout = pars_[pit].layout();
1856 docstring par_text = pars_[pit].asString(cur.buffer(), false);
1857 for (int i = 0; i < lyxrc.label_init_length; ++i) {
1858 if (par_text.empty())
1861 par_text = split(par_text, head, ' ');
1862 // Is it legal to use spaces in labels ?
1868 // No need for a prefix if the user said so.
1869 if (lyxrc.label_init_length <= 0)
1872 // Will contain the label type.
1875 // For section, subsection, etc...
1876 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
1877 Layout_ptr const & layout2 = pars_[pit - 1].layout();
1878 if (layout2->latextype != LATEX_PARAGRAPH) {
1883 if (layout->latextype != LATEX_PARAGRAPH)
1884 name = from_ascii(layout->latexname());
1886 // for captions, we just take the caption type
1887 Inset * caption_inset = cur.innerInsetOfType(Inset::CAPTION_CODE);
1889 name = from_ascii(static_cast<InsetCaption *>(caption_inset)->type());
1891 // If none of the above worked, we'll see if we're inside various
1892 // types of insets and take our abbreviation from them.
1894 Inset::Code const codes[] = {
1899 for (unsigned int i = 0; i < (sizeof codes / sizeof codes[0]); ++i) {
1900 Inset * float_inset = cur.innerInsetOfType(codes[i]);
1902 name = float_inset->name();
1908 // Create a correct prefix for prettyref
1909 if (name == "theorem")
1910 name = from_ascii("thm");
1911 else if (name == "Foot")
1912 name = from_ascii("fn");
1913 else if (name == "listing")
1914 name = from_ascii("lst");
1917 text = name.substr(0, 3) + ':' + text;
1923 void Text::setCursorFromCoordinates(Cursor & cur, int const x, int const y)
1925 BOOST_ASSERT(this == cur.text());
1926 pit_type pit = getPitNearY(cur.bv(), y);
1928 TextMetrics const & tm = cur.bv().textMetrics(this);
1929 ParagraphMetrics const & pm = tm.parMetrics(pit);
1931 int yy = cur.bv().coordCache().get(this, pit).y_ - pm.ascent();
1932 LYXERR(Debug::DEBUG)
1933 << BOOST_CURRENT_FUNCTION
1937 << " yy: " << yy << endl;
1940 BOOST_ASSERT(pm.rows().size());
1941 for (; r < int(pm.rows().size()) - 1; ++r) {
1942 Row const & row = pm.rows()[r];
1943 if (int(yy + row.height()) > y)
1948 Row const & row = pm.rows()[r];
1950 LYXERR(Debug::DEBUG)
1951 << BOOST_CURRENT_FUNCTION
1953 << " from pos: " << row.pos()
1958 pos_type const pos = row.pos()
1959 + tm.getColumnNearX(pit, row, xx, bound);
1961 LYXERR(Debug::DEBUG)
1962 << BOOST_CURRENT_FUNCTION
1963 << ": setting cursor pit: " << pit
1967 setCursor(cur, pit, pos, true, bound);
1968 // remember new position.
1973 void Text::charsTranspose(Cursor & cur)
1975 BOOST_ASSERT(this == cur.text());
1977 pos_type pos = cur.pos();
1979 // If cursor is at beginning or end of paragraph, do nothing.
1980 if (pos == cur.lastpos() || pos == 0)
1983 Paragraph & par = cur.paragraph();
1985 // Get the positions of the characters to be transposed.
1986 pos_type pos1 = pos - 1;
1987 pos_type pos2 = pos;
1989 // In change tracking mode, ignore deleted characters.
1990 while (pos2 < cur.lastpos() && par.isDeleted(pos2))
1992 if (pos2 == cur.lastpos())
1995 while (pos1 >= 0 && par.isDeleted(pos1))
2000 // Don't do anything if one of the "characters" is not regular text.
2001 if (par.isInset(pos1) || par.isInset(pos2))
2004 // Store the characters to be transposed (including font information).
2005 char_type char1 = par.getChar(pos1);
2007 par.getFontSettings(cur.buffer().params(), pos1);
2009 char_type char2 = par.getChar(pos2);
2011 par.getFontSettings(cur.buffer().params(), pos2);
2013 // And finally, we are ready to perform the transposition.
2014 // Track the changes if Change Tracking is enabled.
2015 bool const trackChanges = cur.buffer().params().trackChanges;
2019 par.eraseChar(pos2, trackChanges);
2020 par.eraseChar(pos1, trackChanges);
2021 par.insertChar(pos1, char2, font2, trackChanges);
2022 par.insertChar(pos2, char1, font1, trackChanges);
2024 checkBufferStructure(cur.buffer(), cur);
2026 // After the transposition, move cursor to after the transposition.
2027 setCursor(cur, cur.pit(), pos2);