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 "coordcache.h"
28 #include "CutAndPaste.h"
30 #include "dispatchresult.h"
32 #include "errorlist.h"
33 #include "funcrequest.h"
35 #include "FontIterator.h"
39 #include "lyxlength.h"
43 #include "lyxrow_funcs.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/font_metrics.h"
54 #include "frontends/LyXView.h"
55 #include "frontends/Painter.h"
57 #include "insets/insettext.h"
58 #include "insets/insetbibitem.h"
59 #include "insets/insethfill.h"
60 #include "insets/insetlatexaccent.h"
61 #include "insets/insetline.h"
62 #include "insets/insetnewline.h"
63 #include "insets/insetpagebreak.h"
64 #include "insets/insetoptarg.h"
65 #include "insets/insetspace.h"
66 #include "insets/insetspecialchar.h"
67 #include "insets/insettabular.h"
69 #include "support/lstrings.h"
70 #include "support/textutils.h"
71 #include "support/convert.h"
73 #include <boost/current_function.hpp>
79 using lyx::word_location;
81 using lyx::support::bformat;
82 using lyx::support::contains;
83 using lyx::support::lowercase;
84 using lyx::support::split;
85 using lyx::support::uppercase;
87 using lyx::cap::cutSelection;
100 int numberOfSeparators(Paragraph const & par, Row const & row)
102 pos_type const first = max(row.pos(), par.beginOfBody());
103 pos_type const last = row.endpos() - 1;
105 for (pos_type p = first; p < last; ++p) {
106 if (par.isSeparator(p))
113 int numberOfLabelHfills(Paragraph const & par, Row const & row)
115 pos_type last = row.endpos() - 1;
116 pos_type first = row.pos();
118 // hfill *DO* count at the beginning of paragraphs!
120 while (first < last && par.isHfill(first))
124 last = min(last, par.beginOfBody());
126 for (pos_type p = first; p < last; ++p) {
134 int numberOfHfills(Paragraph const & par, Row const & row)
136 pos_type const last = row.endpos() - 1;
137 pos_type first = row.pos();
139 // hfill *DO* count at the beginning of paragraphs!
141 while (first < last && par.isHfill(first))
145 first = max(first, par.beginOfBody());
148 for (pos_type p = first; p < last; ++p) {
156 void readParToken(Buffer const & buf, Paragraph & par, LyXLex & lex,
157 string const & token, LyXFont & font, Change & change)
159 BufferParams const & bp = buf.params();
161 if (token[0] != '\\') {
162 string::const_iterator cit = token.begin();
163 for (; cit != token.end(); ++cit)
164 par.insertChar(par.size(), (*cit), font, change);
165 } else if (token == "\\begin_layout") {
167 string layoutname = lex.getString();
169 font = LyXFont(LyXFont::ALL_INHERIT, bp.language);
172 LyXTextClass const & tclass = bp.getLyXTextClass();
174 if (layoutname.empty()) {
175 layoutname = tclass.defaultLayoutName();
178 bool hasLayout = tclass.hasLayout(layoutname);
181 buf.error(ErrorItem(_("Unknown layout"),
182 bformat(_("Layout '%1$s' does not exist in textclass '%2$s'\nTrying to use the default instead.\n"),
183 layoutname, tclass.name()), par.id(), 0, par.size()));
184 layoutname = tclass.defaultLayoutName();
187 par.layout(bp.getLyXTextClass()[layoutname]);
189 // Test whether the layout is obsolete.
190 LyXLayout_ptr const & layout = par.layout();
191 if (!layout->obsoleted_by().empty())
192 par.layout(bp.getLyXTextClass()[layout->obsoleted_by()]);
194 par.params().read(lex);
196 } else if (token == "\\end_layout") {
197 lyxerr << BOOST_CURRENT_FUNCTION
198 << ": Solitary \\end_layout in line "
199 << lex.getLineNo() << "\n"
200 << "Missing \\begin_layout?.\n";
201 } else if (token == "\\end_inset") {
202 lyxerr << BOOST_CURRENT_FUNCTION
203 << ": Solitary \\end_inset in line "
204 << lex.getLineNo() << "\n"
205 << "Missing \\begin_inset?.\n";
206 } else if (token == "\\begin_inset") {
207 InsetBase * inset = readInset(lex, buf);
209 par.insertInset(par.size(), inset, font, change);
212 string line = lex.getString();
213 buf.error(ErrorItem(_("Unknown Inset"), line,
214 par.id(), 0, par.size()));
216 } else if (token == "\\family") {
218 font.setLyXFamily(lex.getString());
219 } else if (token == "\\series") {
221 font.setLyXSeries(lex.getString());
222 } else if (token == "\\shape") {
224 font.setLyXShape(lex.getString());
225 } else if (token == "\\size") {
227 font.setLyXSize(lex.getString());
228 } else if (token == "\\lang") {
230 string const tok = lex.getString();
231 Language const * lang = languages.getLanguage(tok);
233 font.setLanguage(lang);
235 font.setLanguage(bp.language);
236 lex.printError("Unknown language `$$Token'");
238 } else if (token == "\\numeric") {
240 font.setNumber(font.setLyXMisc(lex.getString()));
241 } else if (token == "\\emph") {
243 font.setEmph(font.setLyXMisc(lex.getString()));
244 } else if (token == "\\bar") {
246 string const tok = lex.getString();
249 font.setUnderbar(LyXFont::ON);
250 else if (tok == "no")
251 font.setUnderbar(LyXFont::OFF);
252 else if (tok == "default")
253 font.setUnderbar(LyXFont::INHERIT);
255 lex.printError("Unknown bar font flag "
257 } else if (token == "\\noun") {
259 font.setNoun(font.setLyXMisc(lex.getString()));
260 } else if (token == "\\color") {
262 font.setLyXColor(lex.getString());
263 } else if (token == "\\InsetSpace" || token == "\\SpecialChar") {
265 // Insets don't make sense in a free-spacing context! ---Kayvan
266 if (par.isFreeSpacing()) {
267 if (token == "\\InsetSpace")
268 par.insertChar(par.size(), ' ', font, change);
269 else if (lex.isOK()) {
271 string const next_token = lex.getString();
272 if (next_token == "\\-")
273 par.insertChar(par.size(), '-', font, change);
275 lex.printError("Token `$$Token' "
277 "paragraph layout!");
281 auto_ptr<InsetBase> inset;
282 if (token == "\\SpecialChar" )
283 inset.reset(new InsetSpecialChar);
285 inset.reset(new InsetSpace);
286 inset->read(buf, lex);
287 par.insertInset(par.size(), inset.release(),
290 } else if (token == "\\i") {
291 auto_ptr<InsetBase> inset(new InsetLatexAccent);
292 inset->read(buf, lex);
293 par.insertInset(par.size(), inset.release(), font, change);
294 } else if (token == "\\backslash") {
295 par.insertChar(par.size(), '\\', font, change);
296 } else if (token == "\\newline") {
297 auto_ptr<InsetBase> inset(new InsetNewline);
298 inset->read(buf, lex);
299 par.insertInset(par.size(), inset.release(), font, change);
300 } else if (token == "\\LyXTable") {
301 auto_ptr<InsetBase> inset(new InsetTabular(buf));
302 inset->read(buf, lex);
303 par.insertInset(par.size(), inset.release(), font, change);
304 } else if (token == "\\bibitem") {
305 InsetCommandParams p("bibitem", "dummy");
306 auto_ptr<InsetBibitem> inset(new InsetBibitem(p));
307 inset->read(buf, lex);
308 par.insertInset(par.size(), inset.release(), font, change);
309 } else if (token == "\\hfill") {
310 par.insertInset(par.size(), new InsetHFill, font, change);
311 } else if (token == "\\lyxline") {
312 par.insertInset(par.size(), new InsetLine, font, change);
313 } else if (token == "\\newpage") {
314 par.insertInset(par.size(), new InsetPagebreak, font, change);
315 } else if (token == "\\change_unchanged") {
316 // Hack ! Needed for empty paragraphs :/
317 // FIXME: is it still ??
320 change = Change(Change::UNCHANGED);
321 } else if (token == "\\change_inserted") {
323 std::istringstream is(lex.getString());
327 change = Change(Change::INSERTED, bp.author_map[aid], ct);
328 } else if (token == "\\change_deleted") {
330 std::istringstream is(lex.getString());
334 change = Change(Change::DELETED, bp.author_map[aid], ct);
337 buf.error(ErrorItem(_("Unknown token"),
338 bformat(_("Unknown token: %1$s %2$s\n"), token, lex.getString()),
339 par.id(), 0, par.size()));
344 void readParagraph(Buffer const & buf, Paragraph & par, LyXLex & lex)
347 string token = lex.getString();
353 readParToken(buf, par, lex, token, font, change);
356 token = lex.getString();
361 if (token == "\\end_layout") {
362 //Ok, paragraph finished
366 lyxerr[Debug::PARSER] << "Handling paragraph token: `"
367 << token << '\'' << endl;
368 if (token == "\\begin_layout" || token == "\\end_document"
369 || token == "\\end_inset" || token == "\\begin_deeper"
370 || token == "\\end_deeper") {
371 lex.pushToken(token);
372 lyxerr << "Paragraph ended in line "
373 << lex.getLineNo() << "\n"
374 << "Missing \\end_layout.\n";
378 // Initialize begin_of_body_ on load; redoParagraph maintains
379 par.setBeginOfBody();
387 BufferView * LyXText::bv() const
389 BOOST_ASSERT(bv_owner != 0);
394 double LyXText::spacing(Paragraph const & par) const
396 if (par.params().spacing().isDefault())
397 return bv()->buffer()->params().spacing().getValue();
398 return par.params().spacing().getValue();
402 int LyXText::width() const
408 int LyXText::height() const
410 return dim_.height();
414 int LyXText::singleWidth(Paragraph const & par, pos_type pos) const
416 return singleWidth(par, pos, par.getChar(pos), getFont(par, pos));
420 int LyXText::singleWidth(Paragraph const & par,
421 pos_type pos, char c, LyXFont const & font) const
423 // The most common case is handled first (Asger)
424 if (IsPrintable(c)) {
425 Language const * language = font.language();
426 if (language->RightToLeft()) {
427 if ((lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
428 lyxrc.font_norm_type == LyXRC::ISO_10646_1)
429 && language->lang() == "arabic") {
430 if (Encodings::IsComposeChar_arabic(c))
432 c = par.transformChar(c, pos);
433 } else if (language->lang() == "hebrew" &&
434 Encodings::IsComposeChar_hebrew(c))
437 return font_metrics::width(c, font);
440 if (c == Paragraph::META_INSET)
441 return par.getInset(pos)->width();
443 return font_metrics::width(c, font);
447 int LyXText::leftMargin(pit_type pit) const
449 BOOST_ASSERT(pit >= 0);
450 BOOST_ASSERT(pit < int(pars_.size()));
451 return leftMargin(pit, pars_[pit].size());
455 int LyXText::leftMargin(pit_type const pit, pos_type const pos) const
457 BOOST_ASSERT(pit >= 0);
458 BOOST_ASSERT(pit < int(pars_.size()));
459 Paragraph const & par = pars_[pit];
460 BOOST_ASSERT(pos >= 0);
461 BOOST_ASSERT(pos <= par.size());
462 //lyxerr << "LyXText::leftMargin: pit: " << pit << " pos: " << pos << endl;
463 LyXTextClass const & tclass =
464 bv()->buffer()->params().getLyXTextClass();
465 LyXLayout_ptr const & layout = par.layout();
467 string parindent = layout->parindent;
472 l_margin += changebarMargin();
474 l_margin += font_metrics::signedWidth(tclass.leftmargin(), tclass.defaultfont());
476 if (par.getDepth() != 0) {
477 // find the next level paragraph
478 pit_type newpar = outerHook(pit, pars_);
479 if (newpar != pit_type(pars_.size())) {
480 if (pars_[newpar].layout()->isEnvironment()) {
481 l_margin = leftMargin(newpar);
483 if (par.layout() == tclass.defaultLayout()) {
484 if (pars_[newpar].params().noindent())
487 parindent = pars_[newpar].layout()->parindent;
492 // This happens after sections in standard classes. The 1.3.x
493 // code compared depths too, but it does not seem necessary
495 if (par.layout() == tclass.defaultLayout()
496 && pit > 0 && pars_[pit - 1].layout()->nextnoindent)
499 LyXFont const labelfont = getLabelFont(par);
500 switch (layout->margintype) {
502 if (!layout->leftmargin.empty())
503 l_margin += font_metrics::signedWidth(layout->leftmargin,
504 tclass.defaultfont());
505 if (!par.getLabelstring().empty()) {
506 l_margin += font_metrics::signedWidth(layout->labelindent,
508 l_margin += font_metrics::width(par.getLabelstring(),
510 l_margin += font_metrics::width(layout->labelsep, labelfont);
515 l_margin += font_metrics::signedWidth(layout->labelindent, labelfont);
516 // The width of an empty par, even with manual label, should be 0
517 if (!par.empty() && pos >= par.beginOfBody()) {
518 if (!par.getLabelWidthString().empty()) {
519 l_margin += font_metrics::width(par.getLabelWidthString(),
521 l_margin += font_metrics::width(layout->labelsep, labelfont);
527 l_margin += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()) * 4
528 / (par.getDepth() + 4);
531 case MARGIN_FIRST_DYNAMIC:
532 if (layout->labeltype == LABEL_MANUAL) {
533 if (pos >= par.beginOfBody()) {
534 l_margin += font_metrics::signedWidth(layout->leftmargin,
537 l_margin += font_metrics::signedWidth(layout->labelindent,
541 // Special case to fix problems with
543 || (layout->labeltype == LABEL_STATIC
544 && layout->latextype == LATEX_ENVIRONMENT
545 && !isFirstInSequence(pit, pars_))) {
546 l_margin += font_metrics::signedWidth(layout->leftmargin,
548 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
549 && layout->labeltype != LABEL_BIBLIO
550 && layout->labeltype !=
551 LABEL_CENTERED_TOP_ENVIRONMENT) {
552 l_margin += font_metrics::signedWidth(layout->labelindent,
554 l_margin += font_metrics::width(layout->labelsep, labelfont);
555 l_margin += font_metrics::width(par.getLabelstring(),
560 case MARGIN_RIGHT_ADDRESS_BOX: {
562 // ok, a terrible hack. The left margin depends on the widest
563 // row in this paragraph.
564 RowList::iterator rit = par.rows().begin();
565 RowList::iterator end = par.rows().end();
567 #warning This is wrong.
569 int minfill = maxwidth_;
570 for ( ; rit != end; ++rit)
571 if (rit->fill() < minfill)
572 minfill = rit->fill();
573 l_margin += font_metrics::signedWidth(layout->leftmargin,
574 tclass.defaultfont());
577 // also wrong, but much shorter.
578 l_margin += maxwidth_ / 2;
583 if (!par.params().leftIndent().zero())
584 l_margin += par.params().leftIndent().inPixels(maxwidth_);
588 if (par.params().align() == LYX_ALIGN_LAYOUT)
589 align = layout->align;
591 align = par.params().align();
593 // set the correct parindent
595 && (layout->labeltype == LABEL_NO_LABEL
596 || layout->labeltype == LABEL_TOP_ENVIRONMENT
597 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
598 || (layout->labeltype == LABEL_STATIC
599 && layout->latextype == LATEX_ENVIRONMENT
600 && !isFirstInSequence(pit, pars_)))
601 && align == LYX_ALIGN_BLOCK
602 && !par.params().noindent()
603 // in some insets, paragraphs are never indented
604 && !(par.inInset() && par.inInset()->neverIndent())
605 // display style insets are always centered, omit indentation
608 && par.getInset(pos)->display())
609 && (par.layout() != tclass.defaultLayout()
610 || bv()->buffer()->params().paragraph_separation ==
611 BufferParams::PARSEP_INDENT))
613 l_margin += font_metrics::signedWidth(parindent, tclass.defaultfont());
620 int LyXText::rightMargin(Paragraph const & par) const
622 // We do not want rightmargins on inner texts.
623 if (bv()->text() != this)
626 LyXTextClass const & tclass = bv()->buffer()->params().getLyXTextClass();
629 + font_metrics::signedWidth(tclass.rightmargin(),
630 tclass.defaultfont())
631 + font_metrics::signedWidth(par.layout()->rightmargin,
632 tclass.defaultfont())
633 * 4 / (par.getDepth() + 4);
639 int LyXText::labelEnd(pit_type const pit) const
641 // labelEnd is only needed if the layout fills a flushleft label.
642 if (pars_[pit].layout()->margintype != MARGIN_MANUAL)
644 // return the beginning of the body
645 return leftMargin(pit);
651 // this needs special handling - only newlines count as a break point
652 pos_type addressBreakPoint(pos_type i, Paragraph const & par)
654 pos_type const end = par.size();
657 if (par.isNewline(i))
666 void LyXText::rowBreakPoint(pit_type const pit, Row & row) const
668 Paragraph const & par = pars_[pit];
669 pos_type const end = par.size();
670 pos_type const pos = row.pos();
676 // maximum pixel width of a row
677 int width = maxwidth_ - rightMargin(par); // - leftMargin(pit, row);
683 LyXLayout_ptr const & layout = par.layout();
685 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
686 row.endpos(addressBreakPoint(pos, par));
690 pos_type const body_pos = par.beginOfBody();
693 // Now we iterate through until we reach the right margin
694 // or the end of the par, then choose the possible break
697 int const left = leftMargin(pit, pos);
700 // pixel width since last breakpoint
703 FontIterator fi = FontIterator(*this, par, pos);
704 pos_type point = end;
706 for ( ; i < end; ++i, ++fi) {
707 char const c = par.getChar(i);
708 int thiswidth = singleWidth(par, i, c, *fi);
710 // add the auto-hfill from label end to the body
711 if (body_pos && i == body_pos) {
712 int add = font_metrics::width(layout->labelsep, getLabelFont(par));
713 if (par.isLineSeparator(i - 1))
714 add -= singleWidth(par, i - 1);
716 add = std::max(add, labelEnd(pit) - x);
721 chunkwidth += thiswidth;
723 // break before a character that will fall off
724 // the right of the row
726 // if no break before, break here
727 if (point == end || chunkwidth >= width - left) {
734 // exit on last registered breakpoint:
738 if (par.isNewline(i)) {
744 if (par.isInset(i + 1) && par.getInset(i + 1)->display()) {
749 if (par.isInset(i) && par.getInset(i)->display()) {
755 if (!par.isInset(i) || par.getInset(i)->isChar()) {
756 // some insets are line separators too
757 if (par.isLineSeparator(i)) {
758 // register breakpoint:
765 // maybe found one, but the par is short enough.
766 if (i == end && x < width)
769 // manual labels cannot be broken in LaTeX. But we
770 // want to make our on-screen rendering of footnotes
772 if (body_pos && point < body_pos)
779 void LyXText::setRowWidth(pit_type const pit, Row & row) const
781 // get the pure distance
782 pos_type const end = row.endpos();
784 Paragraph const & par = pars_[pit];
785 string const & labelsep = par.layout()->labelsep;
786 int w = leftMargin(pit, row.pos());
788 pos_type const body_pos = par.beginOfBody();
789 pos_type i = row.pos();
792 FontIterator fi = FontIterator(*this, par, i);
793 for ( ; i < end; ++i, ++fi) {
794 if (body_pos > 0 && i == body_pos) {
795 w += font_metrics::width(labelsep, getLabelFont(par));
796 if (par.isLineSeparator(i - 1))
797 w -= singleWidth(par, i - 1);
798 w = max(w, labelEnd(pit));
800 char const c = par.getChar(i);
801 w += singleWidth(par, i, c, *fi);
805 if (body_pos > 0 && body_pos >= end) {
806 w += font_metrics::width(labelsep, getLabelFont(par));
807 if (end > 0 && par.isLineSeparator(end - 1))
808 w -= singleWidth(par, end - 1);
809 w = max(w, labelEnd(pit));
812 row.width(w + rightMargin(par));
816 // returns the minimum space a manual label needs on the screen in pixel
817 int LyXText::labelFill(Paragraph const & par, Row const & row) const
819 pos_type last = par.beginOfBody();
821 BOOST_ASSERT(last > 0);
823 // -1 because a label ends with a space that is in the label
826 // a separator at this end does not count
827 if (par.isLineSeparator(last))
831 for (pos_type i = row.pos(); i <= last; ++i)
832 w += singleWidth(par, i);
834 string const & label = par.params().labelWidthString();
838 return max(0, font_metrics::width(label, getLabelFont(par)) - w);
842 LColor_color LyXText::backgroundColor() const
844 return LColor_color(LColor::color(background_color_));
848 void LyXText::setHeightOfRow(pit_type const pit, Row & row)
850 Paragraph const & par = pars_[pit];
851 // get the maximum ascent and the maximum descent
852 double layoutasc = 0;
853 double layoutdesc = 0;
854 double const dh = defaultRowHeight();
856 // ok, let us initialize the maxasc and maxdesc value.
857 // Only the fontsize count. The other properties
858 // are taken from the layoutfont. Nicer on the screen :)
859 LyXLayout_ptr const & layout = par.layout();
861 // as max get the first character of this row then it can
862 // increase but not decrease the height. Just some point to
863 // start with so we don't have to do the assignment below too
865 LyXFont font = getFont(par, row.pos());
866 LyXFont::FONT_SIZE const tmpsize = font.size();
867 font = getLayoutFont(pit);
868 LyXFont::FONT_SIZE const size = font.size();
869 font.setSize(tmpsize);
871 LyXFont labelfont = getLabelFont(par);
873 // these are minimum values
874 double const spacing_val = layout->spacing.getValue() * spacing(par);
875 //lyxerr << "spacing_val = " << spacing_val << endl;
876 int maxasc = int(font_metrics::maxAscent(font) * spacing_val);
877 int maxdesc = int(font_metrics::maxDescent(font) * spacing_val);
879 // insets may be taller
880 InsetList::const_iterator ii = par.insetlist.begin();
881 InsetList::const_iterator iend = par.insetlist.end();
882 for ( ; ii != iend; ++ii) {
883 if (ii->pos >= row.pos() && ii->pos < row.endpos()) {
884 maxasc = max(maxasc, ii->inset->ascent());
885 maxdesc = max(maxdesc, ii->inset->descent());
889 // Check if any custom fonts are larger (Asger)
890 // This is not completely correct, but we can live with the small,
891 // cosmetic error for now.
893 pos_type const pos_end = row.endpos();
895 LyXFont::FONT_SIZE maxsize =
896 par.highestFontInRange(row.pos(), pos_end, size);
897 if (maxsize > font.size()) {
898 font.setSize(maxsize);
899 maxasc = max(maxasc, font_metrics::maxAscent(font));
900 maxdesc = max(maxdesc, font_metrics::maxDescent(font));
903 // This is nicer with box insets:
910 if (row.pos() == 0) {
911 BufferParams const & bufparams = bv()->buffer()->params();
912 // some parksips VERY EASY IMPLEMENTATION
913 if (bv()->buffer()->params().paragraph_separation
914 == BufferParams::PARSEP_SKIP
916 && ((layout->isParagraph() && par.getDepth() == 0)
917 || (pars_[pit - 1].layout()->isParagraph()
918 && pars_[pit - 1].getDepth() == 0)))
920 maxasc += bufparams.getDefSkip().inPixels(*bv());
923 if (par.params().startOfAppendix())
924 maxasc += int(3 * dh);
926 // This is special code for the chapter, since the label of this
927 // layout is printed in an extra row
928 if (layout->counter == "chapter"
929 && !par.params().labelString().empty()) {
930 labeladdon = int(font_metrics::maxHeight(labelfont)
931 * layout->spacing.getValue()
935 // special code for the top label
936 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
937 || layout->labeltype == LABEL_BIBLIO
938 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
939 && isFirstInSequence(pit, paragraphs())
940 && !par.getLabelstring().empty())
943 font_metrics::maxHeight(labelfont)
944 * layout->spacing.getValue()
946 + (layout->topsep + layout->labelbottomsep) * dh);
949 // Add the layout spaces, for example before and after
950 // a section, or between the items of a itemize or enumerate
953 pit_type prev = depthHook(pit, pars_, par.getDepth());
955 && pars_[prev].layout() == layout
956 && pars_[prev].getDepth() == par.getDepth()
957 && pars_[prev].getLabelWidthString() == par.getLabelWidthString())
959 layoutasc = layout->itemsep * dh;
960 } else if (pit != 0 || row.pos() != 0) {
961 if (layout->topsep > 0)
962 layoutasc = layout->topsep * dh;
965 prev = outerHook(pit, pars_);
966 if (prev != pit_type(pars_.size())) {
967 maxasc += int(pars_[prev].layout()->parsep * dh);
968 } else if (pit != 0) {
969 if (pars_[pit - 1].getDepth() != 0 ||
970 pars_[pit - 1].layout() == layout) {
971 maxasc += int(layout->parsep * dh);
976 // is it a bottom line?
977 if (row.endpos() >= par.size()) {
978 // add the layout spaces, for example before and after
979 // a section, or between the items of a itemize or enumerate
981 pit_type nextpit = pit + 1;
982 if (nextpit != pit_type(pars_.size())) {
987 if (pars_[cpit].getDepth() > pars_[nextpit].getDepth()) {
988 usual = pars_[cpit].layout()->bottomsep * dh;
989 cpit = depthHook(cpit, paragraphs(), pars_[nextpit].getDepth());
990 if (pars_[cpit].layout() != pars_[nextpit].layout()
991 || pars_[nextpit].getLabelWidthString() != pars_[cpit].getLabelWidthString())
993 unusual = pars_[cpit].layout()->bottomsep * dh;
995 layoutdesc = max(unusual, usual);
996 } else if (pars_[cpit].getDepth() == pars_[nextpit].getDepth()) {
997 if (pars_[cpit].layout() != pars_[nextpit].layout()
998 || pars_[nextpit].getLabelWidthString() != pars_[cpit].getLabelWidthString())
999 layoutdesc = int(pars_[cpit].layout()->bottomsep * dh);
1004 // incalculate the layout spaces
1005 maxasc += int(layoutasc * 2 / (2 + pars_[pit].getDepth()));
1006 maxdesc += int(layoutdesc * 2 / (2 + pars_[pit].getDepth()));
1008 // Top and bottom margin of the document (only at top-level)
1009 if (bv_owner->text() == this) {
1010 if (pit == 0 && row.pos() == 0)
1012 if (pit + 1 == pit_type(pars_.size()) &&
1013 row.endpos() == par.size())
1017 row.ascent(maxasc + labeladdon);
1018 row.descent(maxdesc);
1026 void LyXText::breakParagraph(LCursor & cur, bool keep_layout)
1028 BOOST_ASSERT(this == cur.text());
1029 // allow only if at start or end, or all previous is new text
1030 Paragraph & cpar = cur.paragraph();
1031 pit_type cpit = cur.pit();
1033 if (cur.pos() != 0 && cur.pos() != cur.lastpos()
1034 && cpar.isChangeEdited(0, cur.pos()))
1037 LyXTextClass const & tclass = cur.buffer().params().getLyXTextClass();
1038 LyXLayout_ptr const & layout = cpar.layout();
1040 // this is only allowed, if the current paragraph is not empty
1041 // or caption and if it has not the keepempty flag active
1042 if (cur.lastpos() == 0 && !cpar.allowEmpty()
1043 && layout->labeltype != LABEL_SENSITIVE)
1046 // a layout change may affect also the following paragraph
1047 recUndo(cur.pit(), undoSpan(cur.pit()) - 1);
1049 // Always break behind a space
1050 // It is better to erase the space (Dekel)
1051 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
1052 cpar.erase(cur.pos());
1054 // How should the layout for the new paragraph be?
1055 int preserve_layout = 0;
1057 preserve_layout = 2;
1059 preserve_layout = layout->isEnvironment();
1061 // We need to remember this before we break the paragraph, because
1062 // that invalidates the layout variable
1063 bool sensitive = layout->labeltype == LABEL_SENSITIVE;
1065 // we need to set this before we insert the paragraph.
1066 bool const isempty = cpar.allowEmpty() && cpar.empty();
1068 ::breakParagraph(cur.buffer().params(), paragraphs(), cpit,
1069 cur.pos(), preserve_layout);
1071 // After this, neither paragraph contains any rows!
1074 pit_type next_par = cpit + 1;
1076 // well this is the caption hack since one caption is really enough
1079 // set to standard-layout
1080 pars_[cpit].applyLayout(tclass.defaultLayout());
1082 // set to standard-layout
1083 pars_[next_par].applyLayout(tclass.defaultLayout());
1086 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0))
1087 pars_[next_par].erase(0);
1089 updateCounters(cur.buffer());
1091 // This check is necessary. Otherwise the new empty paragraph will
1092 // be deleted automatically. And it is more friendly for the user!
1093 if (cur.pos() != 0 || isempty)
1094 setCursor(cur, cur.pit() + 1, 0);
1096 setCursor(cur, cur.pit(), 0);
1100 // insert a character, moves all the following breaks in the
1101 // same Paragraph one to the right and make a rebreak
1102 void LyXText::insertChar(LCursor & cur, char c)
1104 BOOST_ASSERT(this == cur.text());
1105 BOOST_ASSERT(c != Paragraph::META_INSET);
1107 recordUndo(cur, Undo::INSERT);
1109 Paragraph & par = cur.paragraph();
1110 // try to remove this
1111 pit_type const pit = cur.pit();
1113 bool const freeSpacing = par.layout()->free_spacing ||
1114 par.isFreeSpacing();
1116 if (lyxrc.auto_number) {
1117 static string const number_operators = "+-/*";
1118 static string const number_unary_operators = "+-";
1119 static string const number_seperators = ".,:";
1121 if (current_font.number() == LyXFont::ON) {
1122 if (!IsDigit(c) && !contains(number_operators, c) &&
1123 !(contains(number_seperators, c) &&
1125 cur.pos() != cur.lastpos() &&
1126 getFont(par, cur.pos()).number() == LyXFont::ON &&
1127 getFont(par, cur.pos() - 1).number() == LyXFont::ON)
1129 number(cur); // Set current_font.number to OFF
1130 } else if (IsDigit(c) &&
1131 real_current_font.isVisibleRightToLeft()) {
1132 number(cur); // Set current_font.number to ON
1134 if (cur.pos() != 0) {
1135 char const c = par.getChar(cur.pos() - 1);
1136 if (contains(number_unary_operators, c) &&
1138 || par.isSeparator(cur.pos() - 2)
1139 || par.isNewline(cur.pos() - 2))
1141 setCharFont(pit, cur.pos() - 1, current_font);
1142 } else if (contains(number_seperators, c)
1144 && getFont(par, cur.pos() - 2).number() == LyXFont::ON) {
1145 setCharFont(pit, cur.pos() - 1, current_font);
1151 // First check, if there will be two blanks together or a blank at
1152 // the beginning of a paragraph.
1153 // I decided to handle blanks like normal characters, the main
1154 // difference are the special checks when calculating the row.fill
1155 // (blank does not count at the end of a row) and the check here
1157 // When the free-spacing option is set for the current layout,
1158 // disable the double-space checking
1159 if (!freeSpacing && IsLineSeparatorChar(c)) {
1160 if (cur.pos() == 0) {
1161 static bool sent_space_message = false;
1162 if (!sent_space_message) {
1163 cur.message(_("You cannot insert a space at the "
1164 "beginning of a paragraph. Please read the Tutorial."));
1165 sent_space_message = true;
1169 BOOST_ASSERT(cur.pos() > 0);
1170 if ((par.isLineSeparator(cur.pos() - 1)
1171 || par.isNewline(cur.pos() - 1))
1172 && par.lookupChange(cur.pos() - 1) != Change::DELETED) {
1173 static bool sent_space_message = false;
1174 if (!sent_space_message) {
1175 cur.message(_("You cannot type two spaces this way. "
1176 "Please read the Tutorial."));
1177 sent_space_message = true;
1183 par.insertChar(cur.pos(), c, current_font);
1184 setCursor(cur, cur.pit(), cur.pos() + 1, false, cur.boundary());
1189 void LyXText::charInserted()
1191 // Here we call finishUndo for every 20 characters inserted.
1192 // This is from my experience how emacs does it. (Lgb)
1193 static unsigned int counter;
1204 LyXText::computeRowMetrics(pit_type const pit, Row const & row) const
1207 Paragraph const & par = pars_[pit];
1209 double w = dim_.wid - row.width();
1211 bool const is_rtl = isRTL(par);
1213 result.x = rightMargin(par);
1215 result.x = leftMargin(pit, row.pos());
1217 // is there a manual margin with a manual label
1218 LyXLayout_ptr const & layout = par.layout();
1220 if (layout->margintype == MARGIN_MANUAL
1221 && layout->labeltype == LABEL_MANUAL) {
1222 /// We might have real hfills in the label part
1223 int nlh = numberOfLabelHfills(par, row);
1225 // A manual label par (e.g. List) has an auto-hfill
1226 // between the label text and the body of the
1228 // But we don't want to do this auto hfill if the par
1233 if (nlh && !par.getLabelWidthString().empty())
1234 result.label_hfill = labelFill(par, row) / double(nlh);
1237 // are there any hfills in the row?
1238 int const nh = numberOfHfills(par, row);
1242 result.hfill = w / nh;
1243 // we don't have to look at the alignment if it is ALIGN_LEFT and
1244 // if the row is already larger then the permitted width as then
1245 // we force the LEFT_ALIGN'edness!
1246 } else if (int(row.width()) < maxwidth_) {
1247 // is it block, flushleft or flushright?
1248 // set x how you need it
1250 if (par.params().align() == LYX_ALIGN_LAYOUT)
1251 align = layout->align;
1253 align = par.params().align();
1255 // Display-style insets should always be on a centred row
1256 // The test on par.size() is to catch zero-size pars, which
1257 // would trigger the assert in Paragraph::getInset().
1258 //inset = par.size() ? par.getInset(row.pos()) : 0;
1260 && par.isInset(row.pos())
1261 && par.getInset(row.pos())->display())
1263 align = LYX_ALIGN_CENTER;
1267 case LYX_ALIGN_BLOCK: {
1268 int const ns = numberOfSeparators(par, row);
1269 bool disp_inset = false;
1270 if (row.endpos() < par.size()) {
1271 InsetBase const * in = par.getInset(row.endpos());
1273 disp_inset = in->display();
1275 // If we have separators, this is not the last row of a
1276 // par, does not end in newline, and is not row above a
1277 // display inset... then stretch it
1279 && row.endpos() < par.size()
1280 && !par.isNewline(row.endpos() - 1)
1283 result.separator = w / ns;
1284 } else if (is_rtl) {
1289 case LYX_ALIGN_RIGHT:
1292 case LYX_ALIGN_CENTER:
1298 bidi.computeTables(par, *bv()->buffer(), row);
1300 pos_type body_pos = par.beginOfBody();
1301 pos_type end = row.endpos();
1304 && (body_pos > end || !par.isLineSeparator(body_pos - 1)))
1306 result.x += font_metrics::width(layout->labelsep, getLabelFont(par));
1307 if (body_pos <= end)
1308 result.x += result.label_hfill;
1316 // the cursor set functions have a special mechanism. When they
1317 // realize, that you left an empty paragraph, they will delete it.
1319 bool LyXText::cursorRightOneWord(LCursor & cur)
1321 BOOST_ASSERT(this == cur.text());
1325 if (old.pos() == old.lastpos() && old.pit() != old.lastpit()) {
1329 // Skip through initial nonword stuff.
1330 // Treat floats and insets as words.
1331 while (old.pos() != old.lastpos() && !old.paragraph().isLetter(old.pos()))
1333 // Advance through word.
1334 while (old.pos() != old.lastpos() && old.paragraph().isLetter(old.pos()))
1337 return setCursor(cur, old.pit(), old.pos());
1341 bool LyXText::cursorLeftOneWord(LCursor & cur)
1343 BOOST_ASSERT(this == cur.text());
1347 if (old.pos() == 0 && old.pit() != 0) {
1349 old.pos() = old.lastpos();
1351 // Skip through initial nonword stuff.
1352 // Treat floats and insets as words.
1353 while (old.pos() != 0 && !old.paragraph().isLetter(old.pos() - 1))
1355 // Advance through word.
1356 while (old.pos() != 0 && old.paragraph().isLetter(old.pos() - 1))
1359 return setCursor(cur, old.pit(), old.pos());
1363 void LyXText::selectWord(LCursor & cur, word_location loc)
1365 BOOST_ASSERT(this == cur.text());
1366 CursorSlice from = cur.top();
1367 CursorSlice to = cur.top();
1368 getWord(from, to, loc);
1369 if (cur.top() != from)
1370 setCursor(cur, from.pit(), from.pos());
1374 setCursor(cur, to.pit(), to.pos());
1379 // Select the word currently under the cursor when no
1380 // selection is currently set
1381 bool LyXText::selectWordWhenUnderCursor(LCursor & cur, word_location loc)
1383 BOOST_ASSERT(this == cur.text());
1384 if (cur.selection())
1386 selectWord(cur, loc);
1387 return cur.selection();
1391 void LyXText::acceptChange(LCursor & cur)
1393 BOOST_ASSERT(this == cur.text());
1394 if (!cur.selection() && cur.lastpos() != 0)
1397 CursorSlice const & startc = cur.selBegin();
1398 CursorSlice const & endc = cur.selEnd();
1399 if (startc.pit() == endc.pit()) {
1400 recordUndoSelection(cur, Undo::INSERT);
1401 pars_[startc.pit()].acceptChange(startc.pos(), endc.pos());
1403 cur.clearSelection();
1404 setCursorIntern(cur, startc.pit(), 0);
1406 #ifdef WITH_WARNINGS
1407 #warning handle multi par selection
1412 void LyXText::rejectChange(LCursor & cur)
1414 BOOST_ASSERT(this == cur.text());
1415 if (!cur.selection() && cur.lastpos() != 0)
1418 CursorSlice const & startc = cur.selBegin();
1419 CursorSlice const & endc = cur.selEnd();
1420 if (startc.pit() == endc.pit()) {
1421 recordUndoSelection(cur, Undo::INSERT);
1422 pars_[startc.pit()].rejectChange(startc.pos(), endc.pos());
1424 cur.clearSelection();
1425 setCursorIntern(cur, startc.pit(), 0);
1427 #ifdef WITH_WARNINGS
1428 #warning handle multi par selection
1433 // Delete from cursor up to the end of the current or next word.
1434 void LyXText::deleteWordForward(LCursor & cur)
1436 BOOST_ASSERT(this == cur.text());
1437 if (cur.lastpos() == 0)
1441 cur.selection() = true;
1442 cursorRightOneWord(cur);
1444 cutSelection(cur, true, false);
1449 // Delete from cursor to start of current or prior word.
1450 void LyXText::deleteWordBackward(LCursor & cur)
1452 BOOST_ASSERT(this == cur.text());
1453 if (cur.lastpos() == 0)
1457 cur.selection() = true;
1458 cursorLeftOneWord(cur);
1460 cutSelection(cur, true, false);
1465 // Kill to end of line.
1466 void LyXText::deleteLineForward(LCursor & cur)
1468 BOOST_ASSERT(this == cur.text());
1469 if (cur.lastpos() == 0) {
1470 // Paragraph is empty, so we just go to the right
1474 cur.selection() = true; // to avoid deletion
1477 // What is this test for ??? (JMarc)
1478 if (!cur.selection())
1479 deleteWordForward(cur);
1481 cutSelection(cur, true, false);
1486 void LyXText::changeCase(LCursor & cur, LyXText::TextCase action)
1488 BOOST_ASSERT(this == cur.text());
1492 if (cur.selection()) {
1493 from = cur.selBegin();
1497 getWord(from, to, lyx::PARTIAL_WORD);
1498 setCursor(cur, to.pit(), to.pos() + 1);
1501 recordUndoSelection(cur);
1503 pos_type pos = from.pos();
1504 int par = from.pit();
1506 while (par != int(pars_.size()) && (pos != to.pos() || par != to.pit())) {
1508 if (pos == pars_[pit].size()) {
1513 unsigned char c = pars_[pit].getChar(pos);
1514 if (c != Paragraph::META_INSET) {
1516 case text_lowercase:
1519 case text_capitalization:
1521 action = text_lowercase;
1523 case text_uppercase:
1528 #ifdef WITH_WARNINGS
1531 pars_[pit].setChar(pos, c);
1537 void LyXText::Delete(LCursor & cur)
1539 BOOST_ASSERT(this == cur.text());
1541 if (cur.pos() != cur.lastpos()) {
1542 recordUndo(cur, Undo::DELETE, cur.pit());
1543 setCursorIntern(cur, cur.pit(), cur.pos() + 1, false, cur.boundary());
1545 } else if (cur.pit() != cur.lastpit()) {
1548 setCursorIntern(cur, cur.pit()+1, 0, false, false);
1549 if (pars_[cur.pit()].layout() == pars_[scur.pit()].layout()) {
1550 recordUndo(scur, Undo::DELETE, scur.pit());
1553 setCursorIntern(scur, scur.pit(), scur.pos(), false, scur.boundary());
1559 void LyXText::backspace(LCursor & cur)
1561 BOOST_ASSERT(this == cur.text());
1562 if (cur.pos() == 0) {
1563 // The cursor is at the beginning of a paragraph, so
1564 // the the backspace will collapse two paragraphs into
1567 // but it's not allowed unless it's new
1568 Paragraph & par = cur.paragraph();
1569 if (par.isChangeEdited(0, par.size()))
1572 // we may paste some paragraphs
1574 // is it an empty paragraph?
1575 pos_type lastpos = cur.lastpos();
1576 if (lastpos == 0 || (lastpos == 1 && par.isSeparator(0))) {
1577 // This is an empty paragraph and we delete it just
1578 // by moving the cursor one step
1579 // left and let the DeleteEmptyParagraphMechanism
1580 // handle the actual deletion of the paragraph.
1582 if (cur.pit() != 0) {
1583 // For KeepEmpty layouts we need to get
1584 // rid of the keepEmpty setting first.
1585 // And the only way to do this is to
1586 // reset the layout to something
1587 // else: f.ex. the default layout.
1588 if (par.allowEmpty()) {
1589 Buffer & buf = cur.buffer();
1590 BufferParams const & bparams = buf.params();
1591 par.layout(bparams.getLyXTextClass().defaultLayout());
1600 recordUndo(cur, Undo::DELETE, cur.pit() - 1);
1602 pit_type tmppit = cur.pit();
1603 // We used to do cursorLeftIntern() here, but it is
1604 // not a good idea since it triggers the auto-delete
1605 // mechanism. So we do a cursorLeftIntern()-lite,
1606 // without the dreaded mechanism. (JMarc)
1607 if (cur.pit() != 0) {
1608 // steps into the above paragraph.
1609 setCursorIntern(cur, cur.pit() - 1,
1610 pars_[cur.pit() - 1].size(),
1614 // Pasting is not allowed, if the paragraphs have different
1615 // layout. I think it is a real bug of all other
1616 // word processors to allow it. It confuses the user.
1617 // Correction: Pasting is always allowed with standard-layout
1618 // Correction (Jug 20050717): Remove check about alignment!
1619 Buffer & buf = cur.buffer();
1620 BufferParams const & bufparams = buf.params();
1621 LyXTextClass const & tclass = bufparams.getLyXTextClass();
1622 pit_type const cpit = cur.pit();
1625 && (pars_[cpit].layout() == pars_[tmppit].layout()
1626 || pars_[tmppit].layout() == tclass.defaultLayout()))
1628 mergeParagraph(bufparams, pars_, cpit);
1630 if (cur.pos() != 0 && pars_[cpit].isSeparator(cur.pos() - 1))
1633 // the counters may have changed
1634 updateCounters(cur.buffer());
1635 setCursor(cur, cur.pit(), cur.pos(), false);
1638 // this is the code for a normal backspace, not pasting
1640 recordUndo(cur, Undo::DELETE);
1641 // We used to do cursorLeftIntern() here, but it is
1642 // not a good idea since it triggers the auto-delete
1643 // mechanism. So we do a cursorLeftIntern()-lite,
1644 // without the dreaded mechanism. (JMarc)
1645 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1646 false, cur.boundary());
1647 cur.paragraph().erase(cur.pos());
1650 if (cur.pos() == cur.lastpos())
1651 setCurrentFont(cur);
1653 setCursor(cur, cur.pit(), cur.pos(), false, cur.boundary());
1657 Row const & LyXText::firstRow() const
1659 return *paragraphs().front().rows().begin();
1663 bool LyXText::redoParagraph(pit_type const pit)
1665 // remove rows of paragraph, keep track of height changes
1666 Paragraph & par = pars_[pit];
1668 // Add bibitem insets if necessary
1669 if (par.layout()->labeltype == LABEL_BIBLIO) {
1670 bool hasbibitem(false);
1671 if (!par.insetlist.empty()
1672 // Insist on it being in pos 0
1673 && par.getChar(0) == Paragraph::META_INSET) {
1674 InsetBase * inset = par.insetlist.begin()->inset;
1675 if (inset->lyxCode() == InsetBase::BIBITEM_CODE)
1679 InsetBibitem * inset(new
1680 InsetBibitem(InsetCommandParams("bibitem")));
1681 par.insertInset(0, static_cast<InsetBase *>(inset));
1682 bv()->cursor().posRight();
1687 // FIXME: We should always use getFont(), see documentation of
1688 // noFontChange() in insetbase.h.
1689 LyXFont const tclassfont =
1690 bv()->buffer()->params().getLyXTextClass().defaultfont();
1691 InsetList::iterator ii = par.insetlist.begin();
1692 InsetList::iterator iend = par.insetlist.end();
1693 for (; ii != iend; ++ii) {
1695 int const w = maxwidth_ - leftMargin(pit, ii->pos) - rightMargin(par);
1696 LyXFont const & font = ii->inset->noFontChange() ?
1698 getFont(par, ii->pos);
1699 MetricsInfo mi(bv(), font, w);
1700 ii->inset->metrics(mi, dim);
1703 // rebreak the paragraph
1707 par.setBeginOfBody();
1711 rowBreakPoint(pit, row);
1712 setRowWidth(pit, row);
1713 setHeightOfRow(pit, row);
1714 par.rows().push_back(row);
1715 dim.wid = std::max(dim.wid, row.width());
1716 dim.des += row.height();
1718 } while (z < par.size());
1720 // Make sure that if a par ends in newline, there is one more row
1722 // FIXME this is a dirty trick. Now the _same_ position in the
1723 // paragraph occurs in _two_ different rows, and has two different
1724 // display positions, leading to weird behaviour when moving up/down.
1725 if (z > 0 && par.isNewline(z - 1)) {
1728 setRowWidth(pit, row);
1729 setHeightOfRow(pit, row);
1730 par.rows().push_back(row);
1731 dim.des += row.height();
1734 dim.asc += par.rows()[0].ascent();
1735 dim.des -= par.rows()[0].ascent();
1737 bool const same = dim == par.dim();
1740 //lyxerr << "redoParagraph: " << par.rows().size() << " rows\n";
1746 void LyXText::metrics(MetricsInfo & mi, Dimension & dim)
1748 //BOOST_ASSERT(mi.base.textwidth);
1749 if (mi.base.textwidth)
1750 maxwidth_ = mi.base.textwidth;
1751 //lyxerr << "LyXText::metrics: width: " << mi.base.textwidth
1752 // << " maxWidth: " << maxwidth_ << "\nfont: " << mi.base.font << endl;
1753 // save the caller's font locally:
1754 font_ = mi.base.font;
1758 for (pit_type pit = 0, n = paragraphs().size(); pit != n; ++pit) {
1760 Paragraph & par = paragraphs()[pit];
1762 if (w < par.width())
1767 dim.asc = pars_[0].ascent();
1768 dim.des = h - dim.asc;
1774 // only used for inset right now. should also be used for main text
1775 void LyXText::draw(PainterInfo & pi, int x, int y) const
1777 paintTextInset(*this, pi, x, y);
1782 // only used for inset right now. should also be used for main text
1783 void LyXText::drawSelection(PainterInfo & pi, int x , int) const
1785 LCursor & cur = pi.base.bv->cursor();
1786 if (!cur.selection())
1788 if (!ptr_cmp(cur.text(), this))
1791 lyxerr << "draw selection at " << x << endl;
1793 DocIterator beg = cur.selectionBegin();
1794 DocIterator end = cur.selectionEnd();
1796 // the selection doesn't touch the visible screen
1797 if (bv_funcs::status(pi.base.bv, beg) == bv_funcs::CUR_BELOW
1798 || bv_funcs::status(pi.base.bv, end) == bv_funcs::CUR_ABOVE)
1801 Paragraph const & par1 = pars_[beg.pit()];
1802 Paragraph const & par2 = pars_[end.pit()];
1804 Row const & row1 = par1.getRow(beg.pos(), beg.boundary());
1805 Row const & row2 = par2.getRow(end.pos(), end.boundary());
1808 if (bv_funcs::status(pi.base.bv, beg) == bv_funcs::CUR_ABOVE) {
1813 y1 = bv_funcs::getPos(beg).y_ - row1.ascent();
1814 int const startx = cursorX(beg.top(), begin.boundary());
1815 x1 = isRTL(par1) ? startx : 0;
1816 x2 = isRTL(par1) ? 0 + dim_.wid : startx;
1820 if (bv_funcs::status(pi.base.bv, end) == bv_funcs::CUR_BELOW) {
1821 y2 = pi.base.bv->workHeight();
1825 y2 = bv_funcs::getPos(end).y_ + row2.descent();
1826 int const endx = cursorX(end.top(), end.boundary());
1827 X1 = isRTL(par2) ? 0 : endx;
1828 X2 = isRTL(par2) ? endx : 0 + dim_.wid;
1831 lyxerr << " y1: " << y1 << " y2: " << y2
1832 << " xo: " << xo_ << " wid: " << dim_.wid
1835 // paint big rectangle in one go
1836 pi.pain.fillRectangle(x, y1, dim_.wid, y2 - y1, LColor::selection);
1838 // reset background at begin of first selected line
1839 pi.pain.fillRectangle(x + x1, y1, x2 - x1, row1.height(),
1840 LColor::background);
1842 // reset background at end of last selected line
1843 pi.pain.fillRectangle(x + X1, y2 - row2.height(),
1844 X2 - X1, row2.height(), LColor::background);
1849 void LyXText::drawSelection(PainterInfo & pi, int x, int) const
1851 LCursor & cur = pi.base.bv->cursor();
1852 if (!cur.selection())
1854 if (!ptr_cmp(cur.text(), this))
1857 lyxerr[Debug::DEBUG]
1858 << BOOST_CURRENT_FUNCTION
1859 << "draw selection at " << x
1862 DocIterator beg = cur.selectionBegin();
1863 DocIterator end = cur.selectionEnd();
1865 // the selection doesn't touch the visible screen
1866 if (bv_funcs::status(pi.base.bv, beg) == bv_funcs::CUR_BELOW
1867 || bv_funcs::status(pi.base.bv, end) == bv_funcs::CUR_ABOVE)
1870 Paragraph const & par1 = pars_[beg.pit()];
1871 Paragraph const & par2 = pars_[end.pit()];
1873 bool const above = (bv_funcs::status(pi.base.bv, beg)
1874 == bv_funcs::CUR_ABOVE);
1875 bool const below = (bv_funcs::status(pi.base.bv, end)
1876 == bv_funcs::CUR_BELOW);
1884 Row const & row1 = par1.getRow(beg.pos(), beg.boundary());
1885 y1 = bv_funcs::getPos(beg, beg.boundary()).y_ - row1.ascent();
1886 y2 = y1 + row1.height();
1887 int const startx = cursorX(beg.top(), beg.boundary());
1888 x1 = !isRTL(par1) ? startx : 0;
1889 x2 = !isRTL(par1) ? 0 + dim_.wid : startx;
1894 Y1 = pi.base.bv->workHeight();
1895 Y2 = pi.base.bv->workHeight();
1899 Row const & row2 = par2.getRow(end.pos(), end.boundary());
1900 Y1 = bv_funcs::getPos(end, end.boundary()).y_ - row2.ascent();
1901 Y2 = Y1 + row2.height();
1902 int const endx = cursorX(end.top(), end.boundary());
1903 X1 = !isRTL(par2) ? 0 : endx;
1904 X2 = !isRTL(par2) ? endx : 0 + dim_.wid;
1907 if (!above && !below && &par1.getRow(beg.pos(), beg.boundary())
1908 == &par2.getRow(end.pos(), end.boundary()))
1910 // paint only one rectangle
1911 int const b( !isRTL(par1) ? x + x1 : x + X1 );
1912 int const w( !isRTL(par1) ? X2 - x1 : x2 - X1 );
1913 pi.pain.fillRectangle(b, y1, w, y2 - y1, LColor::selection);
1917 lyxerr[Debug::DEBUG] << " y1: " << y1 << " y2: " << y2
1918 << "X1:" << X1 << " x2: " << X2 << " wid: " << dim_.wid
1921 // paint upper rectangle
1922 pi.pain.fillRectangle(x + x1, y1, x2 - x1, y2 - y1,
1924 // paint bottom rectangle
1925 pi.pain.fillRectangle(x + X1, Y1, X2 - X1, Y2 - Y1,
1927 // paint center rectangle
1928 pi.pain.fillRectangle(x, y2, dim_.wid,
1929 Y1 - y2, LColor::selection);
1933 bool LyXText::isLastRow(pit_type pit, Row const & row) const
1935 return row.endpos() >= pars_[pit].size()
1936 && pit + 1 == pit_type(paragraphs().size());
1940 bool LyXText::isFirstRow(pit_type pit, Row const & row) const
1942 return row.pos() == 0 && pit == 0;
1946 void LyXText::getWord(CursorSlice & from, CursorSlice & to,
1947 word_location const loc)
1949 Paragraph const & from_par = pars_[from.pit()];
1951 case lyx::WHOLE_WORD_STRICT:
1952 if (from.pos() == 0 || from.pos() == from_par.size()
1953 || !from_par.isLetter(from.pos())
1954 || !from_par.isLetter(from.pos() - 1)) {
1958 // no break here, we go to the next
1960 case lyx::WHOLE_WORD:
1961 // If we are already at the beginning of a word, do nothing
1962 if (!from.pos() || !from_par.isLetter(from.pos() - 1))
1964 // no break here, we go to the next
1966 case lyx::PREVIOUS_WORD:
1967 // always move the cursor to the beginning of previous word
1968 while (from.pos() && from_par.isLetter(from.pos() - 1))
1971 case lyx::NEXT_WORD:
1972 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet"
1975 case lyx::PARTIAL_WORD:
1976 // no need to move the 'from' cursor
1980 Paragraph & to_par = pars_[to.pit()];
1981 while (to.pos() < to_par.size() && to_par.isLetter(to.pos()))
1986 void LyXText::write(Buffer const & buf, std::ostream & os) const
1988 ParagraphList::const_iterator pit = paragraphs().begin();
1989 ParagraphList::const_iterator end = paragraphs().end();
1990 Paragraph::depth_type dth = 0;
1991 for (; pit != end; ++pit)
1992 pit->write(buf, os, buf.params(), dth);
1996 bool LyXText::read(Buffer const & buf, LyXLex & lex)
1998 Paragraph::depth_type depth = 0;
2000 while (lex.isOK()) {
2002 string const token = lex.getString();
2007 if (token == "\\end_inset") {
2011 if (token == "\\end_body") {
2015 if (token == "\\begin_body") {
2019 if (token == "\\end_document") {
2023 if (token == "\\begin_layout") {
2024 lex.pushToken(token);
2027 par.params().depth(depth);
2028 if (buf.params().tracking_changes)
2030 par.setFont(0, LyXFont(LyXFont::ALL_INHERIT, buf.params().language));
2031 pars_.push_back(par);
2033 // FIXME: goddamn InsetTabular makes us pass a Buffer
2035 ::readParagraph(buf, pars_.back(), lex);
2037 } else if (token == "\\begin_deeper") {
2039 } else if (token == "\\end_deeper") {
2041 lex.printError("\\end_deeper: " "depth is already null");
2046 lyxerr << "Handling unknown body token: `"
2047 << token << '\'' << endl;
2054 int LyXText::ascent() const
2060 int LyXText::descent() const
2066 int LyXText::cursorX(CursorSlice const & sl, bool boundary) const
2068 pit_type const pit = sl.pit();
2069 Paragraph const & par = pars_[pit];
2070 if (par.rows().empty())
2073 pos_type ppos = sl.pos();
2074 // Correct position in front of big insets
2075 bool const boundary_correction = ppos != 0 && boundary;
2076 if (boundary_correction)
2079 Row const & row = par.getRow(sl.pos(), boundary);
2081 pos_type cursor_vpos = 0;
2083 RowMetrics const m = computeRowMetrics(pit, row);
2086 pos_type const row_pos = row.pos();
2087 pos_type const end = row.endpos();
2090 cursor_vpos = row_pos;
2091 else if (ppos >= end)
2092 cursor_vpos = isRTL(par) ? row_pos : end;
2093 else if (ppos > row_pos && ppos >= end)
2094 // Place cursor after char at (logical) position pos - 1
2095 cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
2096 ? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
2098 // Place cursor before char at (logical) position ppos
2099 cursor_vpos = (bidi.level(ppos) % 2 == 0)
2100 ? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
2102 pos_type body_pos = par.beginOfBody();
2104 (body_pos > end || !par.isLineSeparator(body_pos - 1)))
2107 // Use font span to speed things up, see below
2111 for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
2112 pos_type pos = bidi.vis2log(vpos);
2113 if (body_pos > 0 && pos == body_pos - 1) {
2115 + font_metrics::width(par.layout()->labelsep,
2117 if (par.isLineSeparator(body_pos - 1))
2118 x -= singleWidth(par, body_pos - 1);
2121 // Use font span to speed things up, see above
2122 if (pos < font_span.first || pos > font_span.last) {
2123 font_span = par.fontSpan(pos);
2124 font = getFont(par, pos);
2127 x += singleWidth(par, pos, par.getChar(pos), font);
2129 if (hfillExpansion(par, row, pos))
2130 x += (pos >= body_pos) ? m.hfill : m.label_hfill;
2131 else if (par.isSeparator(pos) && pos >= body_pos)
2135 // see correction above
2136 if (boundary_correction)
2137 if (getFont(par, ppos).isVisibleRightToLeft())
2138 x -= singleWidth(par, ppos);
2140 x += singleWidth(par, ppos);
2142 // Make sure inside an inset we always count from the left
2143 // edge (bidi!) -- MV
2144 if (sl.pos() < par.size()) {
2145 font = getFont(par, sl.pos());
2146 if (!boundary && font.isVisibleRightToLeft()
2147 && par.isInset(sl.pos()))
2148 x -= par.getInset(sl.pos())->width();
2154 int LyXText::cursorY(CursorSlice const & sl, bool boundary) const
2156 //lyxerr << "LyXText::cursorY: boundary: " << boundary << std::endl;
2157 Paragraph const & par = getPar(sl.pit());
2159 h -= pars_[0].rows()[0].ascent();
2160 for (pit_type pit = 0; pit < sl.pit(); ++pit)
2161 h += pars_[pit].height();
2163 if (pos && boundary)
2165 size_t const rend = par.pos2row(pos);
2166 for (size_t rit = 0; rit != rend; ++rit)
2167 h += par.rows()[rit].height();
2168 h += par.rows()[rend].ascent();
2173 // Returns the current font and depth as a message.
2174 string LyXText::currentState(LCursor & cur)
2176 BOOST_ASSERT(this == cur.text());
2177 Buffer & buf = cur.buffer();
2178 Paragraph const & par = cur.paragraph();
2179 std::ostringstream os;
2181 bool const show_change = buf.params().tracking_changes
2182 && cur.pos() != cur.lastpos()
2183 && par.lookupChange(cur.pos()) != Change::UNCHANGED;
2186 Change change = par.lookupChangeFull(cur.pos());
2187 Author const & a = buf.params().authors().get(change.author);
2188 os << _("Change: ") << a.name();
2189 if (!a.email().empty())
2190 os << " (" << a.email() << ")";
2191 if (change.changetime)
2192 os << _(" at ") << ctime(&change.changetime);
2196 // I think we should only show changes from the default
2198 LyXFont font = real_current_font;
2199 font.reduce(buf.params().getLyXTextClass().defaultfont());
2201 // avoid _(...) re-entrance problem
2202 string const s = font.stateText(&buf.params());
2203 os << bformat(_("Font: %1$s"), s);
2205 // os << bformat(_("Font: %1$s"), font.stateText(&buf.params));
2207 // The paragraph depth
2208 int depth = cur.paragraph().getDepth();
2210 os << bformat(_(", Depth: %1$d"), depth);
2212 // The paragraph spacing, but only if different from
2214 Spacing const & spacing = par.params().spacing();
2215 if (!spacing.isDefault()) {
2216 os << _(", Spacing: ");
2217 switch (spacing.getSpace()) {
2218 case Spacing::Single:
2221 case Spacing::Onehalf:
2224 case Spacing::Double:
2227 case Spacing::Other:
2228 os << _("Other (") << spacing.getValueAsString() << ')';
2230 case Spacing::Default:
2231 // should never happen, do nothing
2236 #ifdef DEVEL_VERSION
2237 os << _(", Inset: ") << &cur.inset();
2238 os << _(", Paragraph: ") << cur.pit();
2239 os << _(", Id: ") << par.id();
2240 os << _(", Position: ") << cur.pos();
2241 os << _(", Boundary: ") << cur.boundary();
2242 // Row & row = cur.textRow();
2243 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
2249 string LyXText::getPossibleLabel(LCursor & cur) const
2251 pit_type pit = cur.pit();
2253 LyXLayout_ptr layout = pars_[pit].layout();
2255 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
2256 LyXLayout_ptr const & layout2 = pars_[pit - 1].layout();
2257 if (layout2->latextype != LATEX_PARAGRAPH) {
2263 string text = layout->latexname().substr(0, 3);
2264 if (layout->latexname() == "theorem")
2265 text = "thm"; // Create a correct prefix for prettyref
2268 if (layout->latextype == LATEX_PARAGRAPH || lyxrc.label_init_length < 0)
2271 string par_text = pars_[pit].asString(cur.buffer(), false);
2272 for (int i = 0; i < lyxrc.label_init_length; ++i) {
2273 if (par_text.empty())
2276 par_text = split(par_text, head, ' ');
2277 // Is it legal to use spaces in labels ?
2287 //pos_type LyXText::x2pos(pit_type pit, int row, int x) const
2291 // Paragraph const & par = pars_[pit];
2292 // Row const & r = par.rows()[row];
2293 // int pos = r.pos();
2294 // for (; currx < x && pos < r.endpos(); ++pos) {
2296 // currx += singleWidth(par, pos);
2298 // if (abs(lastx - x) < abs(currx - x) && pos != r.pos())
2304 pos_type LyXText::x2pos(pit_type pit, int row, int x) const
2306 BOOST_ASSERT(row < int(pars_[pit].rows().size()));
2308 Row const & r = pars_[pit].rows()[row];
2309 return r.pos() + getColumnNearX(pit, r, x, bound);
2313 //int LyXText::pos2x(pit_type pit, pos_type pos) const
2315 // Paragraph const & par = pars_[pit];
2316 // Row const & r = par.rows()[row];
2322 // x,y are screen coordinates
2323 // sets cursor only within this LyXText
2324 bool LyXText::setCursorFromCoordinates(LCursor & cur, int const x, int const y)
2326 pit_type pit = getPitNearY(y);
2327 int yy = theCoords.get(this, pit).y_ - pars_[pit].ascent();
2328 lyxerr[Debug::DEBUG]
2329 << BOOST_CURRENT_FUNCTION
2333 << " yy: " << yy << endl;
2335 Paragraph const & par = pars_[pit];
2337 BOOST_ASSERT(par.rows().size());
2338 for (; r < int(par.rows().size()) - 1; ++r) {
2339 Row const & row = par.rows()[r];
2340 if (int(yy + row.height()) > y)
2345 Row const & row = par.rows()[r];
2347 lyxerr[Debug::DEBUG]
2348 << BOOST_CURRENT_FUNCTION
2350 << " from pos: " << row.pos()
2355 pos_type const pos = row.pos() + getColumnNearX(pit, row, xx, bound);
2357 lyxerr[Debug::DEBUG]
2358 << BOOST_CURRENT_FUNCTION
2359 << ": setting cursor pit: " << pit
2363 return setCursor(cur, pit, pos, true, bound);