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"
77 using lyx::word_location;
79 using lyx::support::bformat;
80 using lyx::support::contains;
81 using lyx::support::lowercase;
82 using lyx::support::split;
83 using lyx::support::uppercase;
85 using lyx::cap::cutSelection;
98 int numberOfSeparators(Paragraph const & par, Row const & row)
100 pos_type const first = max(row.pos(), par.beginOfBody());
101 pos_type const last = row.endpos() - 1;
103 for (pos_type p = first; p < last; ++p) {
104 if (par.isSeparator(p))
111 int numberOfLabelHfills(Paragraph const & par, Row const & row)
113 pos_type last = row.endpos() - 1;
114 pos_type first = row.pos();
116 // hfill *DO* count at the beginning of paragraphs!
118 while (first < last && par.isHfill(first))
122 last = min(last, par.beginOfBody());
124 for (pos_type p = first; p < last; ++p) {
132 int numberOfHfills(Paragraph const & par, Row const & row)
134 pos_type const last = row.endpos() - 1;
135 pos_type first = row.pos();
137 // hfill *DO* count at the beginning of paragraphs!
139 while (first < last && par.isHfill(first))
143 first = max(first, par.beginOfBody());
146 for (pos_type p = first; p < last; ++p) {
154 void readParToken(Buffer const & buf, Paragraph & par, LyXLex & lex,
155 string const & token, LyXFont & font)
157 static 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);
166 } else if (token == "\\begin_layout") {
168 string layoutname = lex.getString();
170 font = LyXFont(LyXFont::ALL_INHERIT, bp.language);
173 LyXTextClass const & tclass = bp.getLyXTextClass();
175 if (layoutname.empty()) {
176 layoutname = tclass.defaultLayoutName();
179 bool hasLayout = tclass.hasLayout(layoutname);
182 buf.error(ErrorItem(_("Unknown layout"),
183 bformat(_("Layout '%1$s' does not exists in textclass '%2$s'\nTrying to use the default instead.\n"),
184 layoutname, tclass.name()), par.id(), 0, par.size()));
185 layoutname = tclass.defaultLayoutName();
188 par.layout(bp.getLyXTextClass()[layoutname]);
190 // Test whether the layout is obsolete.
191 LyXLayout_ptr const & layout = par.layout();
192 if (!layout->obsoleted_by().empty())
193 par.layout(bp.getLyXTextClass()[layout->obsoleted_by()]);
195 par.params().read(lex);
197 } else if (token == "\\end_layout") {
198 lyxerr << BOOST_CURRENT_FUNCTION
199 << ": Solitary \\end_layout in line "
200 << lex.getLineNo() << "\n"
201 << "Missing \\begin_layout?.\n";
202 } else if (token == "\\end_inset") {
203 lyxerr << BOOST_CURRENT_FUNCTION
204 << ": Solitary \\end_inset in line "
205 << lex.getLineNo() << "\n"
206 << "Missing \\begin_inset?.\n";
207 } else if (token == "\\begin_inset") {
208 InsetBase * inset = readInset(lex, buf);
210 par.insertInset(par.size(), inset, font, change);
213 string line = lex.getString();
214 buf.error(ErrorItem(_("Unknown Inset"), line,
215 par.id(), 0, par.size()));
217 } else if (token == "\\family") {
219 font.setLyXFamily(lex.getString());
220 } else if (token == "\\series") {
222 font.setLyXSeries(lex.getString());
223 } else if (token == "\\shape") {
225 font.setLyXShape(lex.getString());
226 } else if (token == "\\size") {
228 font.setLyXSize(lex.getString());
229 } else if (token == "\\lang") {
231 string const tok = lex.getString();
232 Language const * lang = languages.getLanguage(tok);
234 font.setLanguage(lang);
236 font.setLanguage(bp.language);
237 lex.printError("Unknown language `$$Token'");
239 } else if (token == "\\numeric") {
241 font.setNumber(font.setLyXMisc(lex.getString()));
242 } else if (token == "\\emph") {
244 font.setEmph(font.setLyXMisc(lex.getString()));
245 } else if (token == "\\bar") {
247 string const tok = lex.getString();
250 font.setUnderbar(LyXFont::ON);
251 else if (tok == "no")
252 font.setUnderbar(LyXFont::OFF);
253 else if (tok == "default")
254 font.setUnderbar(LyXFont::INHERIT);
256 lex.printError("Unknown bar font flag "
258 } else if (token == "\\noun") {
260 font.setNoun(font.setLyXMisc(lex.getString()));
261 } else if (token == "\\color") {
263 font.setLyXColor(lex.getString());
264 } else if (token == "\\InsetSpace" || token == "\\SpecialChar") {
266 // Insets don't make sense in a free-spacing context! ---Kayvan
267 if (par.isFreeSpacing()) {
268 if (token == "\\InsetSpace")
269 par.insertChar(par.size(), ' ', font, change);
270 else if (lex.isOK()) {
272 string const next_token = lex.getString();
273 if (next_token == "\\-")
274 par.insertChar(par.size(), '-', font, change);
276 lex.printError("Token `$$Token' "
278 "paragraph layout!");
282 auto_ptr<InsetBase> inset;
283 if (token == "\\SpecialChar" )
284 inset.reset(new InsetSpecialChar);
286 inset.reset(new InsetSpace);
287 inset->read(buf, lex);
288 par.insertInset(par.size(), inset.release(),
291 } else if (token == "\\i") {
292 auto_ptr<InsetBase> inset(new InsetLatexAccent);
293 inset->read(buf, lex);
294 par.insertInset(par.size(), inset.release(), font, change);
295 } else if (token == "\\backslash") {
296 par.insertChar(par.size(), '\\', font, change);
297 } else if (token == "\\newline") {
298 auto_ptr<InsetBase> inset(new InsetNewline);
299 inset->read(buf, lex);
300 par.insertInset(par.size(), inset.release(), font, change);
301 } else if (token == "\\LyXTable") {
302 auto_ptr<InsetBase> inset(new InsetTabular(buf));
303 inset->read(buf, lex);
304 par.insertInset(par.size(), inset.release(), font, change);
305 } else if (token == "\\bibitem") {
306 InsetCommandParams p("bibitem", "dummy");
307 auto_ptr<InsetBibitem> inset(new InsetBibitem(p));
308 inset->read(buf, lex);
309 par.insertInset(par.size(), inset.release(), font, change);
310 } else if (token == "\\hfill") {
311 par.insertInset(par.size(), new InsetHFill, font, change);
312 } else if (token == "\\lyxline") {
313 par.insertInset(par.size(), new InsetLine, font, change);
314 } else if (token == "\\newpage") {
315 par.insertInset(par.size(), new InsetPagebreak, font, change);
316 } else if (token == "\\change_unchanged") {
317 // Hack ! Needed for empty paragraphs :/
318 // FIXME: is it still ??
321 change = Change(Change::UNCHANGED);
322 } else if (token == "\\change_inserted") {
324 std::istringstream is(lex.getString());
328 change = Change(Change::INSERTED, bp.author_map[aid], ct);
329 } else if (token == "\\change_deleted") {
331 std::istringstream is(lex.getString());
335 change = Change(Change::DELETED, bp.author_map[aid], ct);
338 buf.error(ErrorItem(_("Unknown token"),
339 bformat(_("Unknown token: %1$s %2$s\n"), token, lex.getString()),
340 par.id(), 0, par.size()));
345 void readParagraph(Buffer const & buf, Paragraph & par, LyXLex & lex)
348 string token = lex.getString();
353 readParToken(buf, par, lex, token, font);
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 BOOST_ASSERT(pos < par.size());
425 // The most common case is handled first (Asger)
426 if (IsPrintable(c)) {
427 Language const * language = font.language();
428 if (language->RightToLeft()) {
429 if ((lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
430 lyxrc.font_norm_type == LyXRC::ISO_10646_1)
431 && language->lang() == "arabic") {
432 if (Encodings::IsComposeChar_arabic(c))
434 c = par.transformChar(c, pos);
435 } else if (language->lang() == "hebrew" &&
436 Encodings::IsComposeChar_hebrew(c))
439 return font_metrics::width(c, font);
442 if (c == Paragraph::META_INSET)
443 return par.getInset(pos)->width();
445 if (IsSeparatorChar(c))
447 return font_metrics::width(c, font);
451 int LyXText::leftMargin(pit_type pit) const
453 BOOST_ASSERT(pit >= 0);
454 BOOST_ASSERT(pit < int(pars_.size()));
455 return leftMargin(pit, pars_[pit].size());
459 int LyXText::leftMargin(pit_type const pit, pos_type const pos) const
461 BOOST_ASSERT(pit >= 0);
462 BOOST_ASSERT(pit < int(pars_.size()));
463 Paragraph const & par = pars_[pit];
464 BOOST_ASSERT(pos >= 0);
465 BOOST_ASSERT(pos <= par.size());
466 //lyxerr << "LyXText::leftMargin: pit: " << pit << " pos: " << pos << endl;
467 LyXTextClass const & tclass =
468 bv()->buffer()->params().getLyXTextClass();
469 LyXLayout_ptr const & layout = par.layout();
471 string parindent = layout->parindent;
476 l_margin += changebarMargin();
478 l_margin += font_metrics::signedWidth(tclass.leftmargin(), tclass.defaultfont());
480 if (par.getDepth() != 0) {
481 // find the next level paragraph
482 pit_type newpar = outerHook(pit, pars_);
483 if (newpar != pit_type(pars_.size())) {
484 if (pars_[newpar].layout()->isEnvironment()) {
485 l_margin = leftMargin(newpar);
487 if (par.layout() == tclass.defaultLayout()) {
488 if (pars_[newpar].params().noindent())
491 parindent = pars_[newpar].layout()->parindent;
496 LyXFont const labelfont = getLabelFont(par);
497 switch (layout->margintype) {
499 if (!layout->leftmargin.empty())
500 l_margin += font_metrics::signedWidth(layout->leftmargin,
501 tclass.defaultfont());
502 if (!par.getLabelstring().empty()) {
503 l_margin += font_metrics::signedWidth(layout->labelindent,
505 l_margin += font_metrics::width(par.getLabelstring(),
507 l_margin += font_metrics::width(layout->labelsep, labelfont);
512 l_margin += font_metrics::signedWidth(layout->labelindent, labelfont);
513 // The width of an empty par, even with manual label, should be 0
514 if (!par.empty() && pos >= par.beginOfBody()) {
515 if (!par.getLabelWidthString().empty()) {
516 l_margin += font_metrics::width(par.getLabelWidthString(),
518 l_margin += font_metrics::width(layout->labelsep, labelfont);
524 l_margin += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()) * 4
525 / (par.getDepth() + 4);
528 case MARGIN_FIRST_DYNAMIC:
529 if (layout->labeltype == LABEL_MANUAL) {
530 if (pos >= par.beginOfBody()) {
531 l_margin += font_metrics::signedWidth(layout->leftmargin,
534 l_margin += font_metrics::signedWidth(layout->labelindent,
538 // Special case to fix problems with
540 || (layout->labeltype == LABEL_STATIC
541 && layout->latextype == LATEX_ENVIRONMENT
542 && !isFirstInSequence(pit, pars_))) {
543 l_margin += font_metrics::signedWidth(layout->leftmargin,
545 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
546 && layout->labeltype != LABEL_BIBLIO
547 && layout->labeltype !=
548 LABEL_CENTERED_TOP_ENVIRONMENT) {
549 l_margin += font_metrics::signedWidth(layout->labelindent,
551 l_margin += font_metrics::width(layout->labelsep, labelfont);
552 l_margin += font_metrics::width(par.getLabelstring(),
557 case MARGIN_RIGHT_ADDRESS_BOX: {
559 // ok, a terrible hack. The left margin depends on the widest
560 // row in this paragraph.
561 RowList::iterator rit = par.rows().begin();
562 RowList::iterator end = par.rows().end();
564 #warning This is wrong.
566 int minfill = maxwidth_;
567 for ( ; rit != end; ++rit)
568 if (rit->fill() < minfill)
569 minfill = rit->fill();
570 l_margin += font_metrics::signedWidth(layout->leftmargin,
571 tclass.defaultfont());
574 // also wrong, but much shorter.
575 l_margin += maxwidth_ / 2;
580 if (!par.params().leftIndent().zero())
581 l_margin += par.params().leftIndent().inPixels(maxwidth_);
585 if (par.params().align() == LYX_ALIGN_LAYOUT)
586 align = layout->align;
588 align = par.params().align();
590 // set the correct parindent
592 && (layout->labeltype == LABEL_NO_LABEL
593 || layout->labeltype == LABEL_TOP_ENVIRONMENT
594 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
595 || (layout->labeltype == LABEL_STATIC
596 && layout->latextype == LATEX_ENVIRONMENT
597 && !isFirstInSequence(pit, pars_)))
598 && align == LYX_ALIGN_BLOCK
599 && !par.params().noindent()
600 // display style insets are always centered, omit indentation
603 && par.getInset(pos)->display())
604 // in charstyles, tabulars and ert paragraphs are never indented!
605 && ((par.ownerCode() != InsetBase::TEXT_CODE || isMainText())
606 && par.ownerCode() != InsetBase::ERT_CODE
607 && par.ownerCode() != InsetBase::CHARSTYLE_CODE)
608 && (par.layout() != tclass.defaultLayout()
609 || bv()->buffer()->params().paragraph_separation ==
610 BufferParams::PARSEP_INDENT))
612 l_margin += font_metrics::signedWidth(parindent, tclass.defaultfont());
619 int LyXText::rightMargin(Paragraph const & par) const
621 // We do not want rightmargins on inner texts.
622 if (bv()->text() != this)
625 LyXTextClass const & tclass = bv()->buffer()->params().getLyXTextClass();
628 + font_metrics::signedWidth(tclass.rightmargin(),
629 tclass.defaultfont())
630 + font_metrics::signedWidth(par.layout()->rightmargin,
631 tclass.defaultfont())
632 * 4 / (par.getDepth() + 4);
638 int LyXText::labelEnd(pit_type const pit) const
640 // labelEnd is only needed if the layout fills a flushleft label.
641 if (pars_[pit].layout()->margintype != MARGIN_MANUAL)
643 // return the beginning of the body
644 return leftMargin(pit);
650 // this needs special handling - only newlines count as a break point
651 pos_type addressBreakPoint(pos_type i, Paragraph const & par)
653 pos_type const end = par.size();
656 if (par.isNewline(i))
665 void LyXText::rowBreakPoint(pit_type const pit, Row & row) const
667 Paragraph const & par = pars_[pit];
668 pos_type const end = par.size();
669 pos_type const pos = row.pos();
675 // maximum pixel width of a row
676 int width = maxwidth_ - rightMargin(par); // - leftMargin(pit, row);
682 LyXLayout_ptr const & layout = par.layout();
684 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
685 row.endpos(addressBreakPoint(pos, par));
689 pos_type const body_pos = par.beginOfBody();
692 // Now we iterate through until we reach the right margin
693 // or the end of the par, then choose the possible break
696 int const left = leftMargin(pit, pos);
699 // pixel width since last breakpoint
702 FontIterator fi = FontIterator(*this, par, pos);
703 pos_type point = end;
705 for ( ; i < end; ++i, ++fi) {
706 char const c = par.getChar(i);
709 int thiswidth = singleWidth(par, i, c, *fi);
711 // add the auto-hfill from label end to the body
712 if (body_pos && i == body_pos) {
713 int add = font_metrics::width(layout->labelsep, getLabelFont(par));
714 if (par.isLineSeparator(i - 1))
715 add -= singleWidth(par, i - 1);
717 add = std::max(add, labelEnd(pit) - x);
722 chunkwidth += thiswidth;
725 // break before a character that will fall off
726 // the right of the row
728 // if no break before, break here
729 if (point == end || chunkwidth >= width - left) {
736 // exit on last registered breakpoint:
740 if (par.isNewline(i)) {
746 if (par.isInset(i + 1) && par.getInset(i + 1)->display()) {
751 if (par.isInset(i) && par.getInset(i)->display()) {
757 if (!par.isInset(i) || par.getInset(i)->isChar()) {
758 // some insets are line separators too
759 if (par.isLineSeparator(i)) {
760 // register breakpoint:
767 // maybe found one, but the par is short enough.
768 if (i == end && x < width)
771 // manual labels cannot be broken in LaTeX. But we
772 // want to make our on-screen rendering of footnotes
774 if (body_pos && point < body_pos)
781 void LyXText::setRowWidth(pit_type const pit, Row & row) const
783 // get the pure distance
784 pos_type const end = row.endpos();
786 Paragraph const & par = pars_[pit];
787 string const & labelsep = par.layout()->labelsep;
788 int w = leftMargin(pit, row.pos());
790 pos_type const body_pos = par.beginOfBody();
791 pos_type i = row.pos();
794 FontIterator fi = FontIterator(*this, par, i);
795 for ( ; i < end; ++i, ++fi) {
796 if (body_pos > 0 && i == body_pos) {
797 w += font_metrics::width(labelsep, getLabelFont(par));
798 if (par.isLineSeparator(i - 1))
799 w -= singleWidth(par, i - 1);
800 w = max(w, labelEnd(pit));
802 char const c = par.getChar(i);
803 w += singleWidth(par, i, c, *fi);
807 if (body_pos > 0 && body_pos >= end) {
808 w += font_metrics::width(labelsep, getLabelFont(par));
809 if (end > 0 && par.isLineSeparator(end - 1))
810 w -= singleWidth(par, end - 1);
811 w = max(w, labelEnd(pit));
814 row.width(w + rightMargin(par));
818 // returns the minimum space a manual label needs on the screen in pixel
819 int LyXText::labelFill(Paragraph const & par, Row const & row) const
821 pos_type last = par.beginOfBody();
823 BOOST_ASSERT(last > 0);
825 // -1 because a label ends with a space that is in the label
828 // a separator at this end does not count
829 if (par.isLineSeparator(last))
833 for (pos_type i = row.pos(); i <= last; ++i)
834 w += singleWidth(par, i);
836 string const & label = par.params().labelWidthString();
840 return max(0, font_metrics::width(label, getLabelFont(par)) - w);
844 LColor_color LyXText::backgroundColor() const
846 return LColor_color(LColor::color(background_color_));
850 void LyXText::setHeightOfRow(pit_type const pit, Row & row)
852 Paragraph const & par = pars_[pit];
853 // get the maximum ascent and the maximum descent
854 double layoutasc = 0;
855 double layoutdesc = 0;
856 double const dh = defaultRowHeight();
858 // ok, let us initialize the maxasc and maxdesc value.
859 // Only the fontsize count. The other properties
860 // are taken from the layoutfont. Nicer on the screen :)
861 LyXLayout_ptr const & layout = par.layout();
863 // as max get the first character of this row then it can
864 // increase but not decrease the height. Just some point to
865 // start with so we don't have to do the assignment below too
867 LyXFont font = getFont(par, row.pos());
868 LyXFont::FONT_SIZE const tmpsize = font.size();
869 font = getLayoutFont(pit);
870 LyXFont::FONT_SIZE const size = font.size();
871 font.setSize(tmpsize);
873 LyXFont labelfont = getLabelFont(par);
875 // these are minimum values
876 double const spacing_val = layout->spacing.getValue() * spacing(par);
877 //lyxerr << "spacing_val = " << spacing_val << endl;
878 int maxasc = int(font_metrics::maxAscent(font) * spacing_val);
879 int maxdesc = int(font_metrics::maxDescent(font) * spacing_val);
881 // insets may be taller
882 InsetList::const_iterator ii = par.insetlist.begin();
883 InsetList::const_iterator iend = par.insetlist.end();
884 for ( ; ii != iend; ++ii) {
885 if (ii->pos >= row.pos() && ii->pos < row.endpos()) {
886 maxasc = max(maxasc, ii->inset->ascent());
887 maxdesc = max(maxdesc, ii->inset->descent());
891 // Check if any custom fonts are larger (Asger)
892 // This is not completely correct, but we can live with the small,
893 // cosmetic error for now.
895 pos_type const pos_end = row.endpos();
897 LyXFont::FONT_SIZE maxsize =
898 par.highestFontInRange(row.pos(), pos_end, size);
899 if (maxsize > font.size()) {
900 font.setSize(maxsize);
901 maxasc = max(maxasc, font_metrics::maxAscent(font));
902 maxdesc = max(maxdesc, font_metrics::maxDescent(font));
905 // This is nicer with box insets:
912 if (row.pos() == 0) {
913 BufferParams const & bufparams = bv()->buffer()->params();
914 // some parksips VERY EASY IMPLEMENTATION
915 if (bv()->buffer()->params().paragraph_separation
916 == BufferParams::PARSEP_SKIP
918 && ((layout->isParagraph() && par.getDepth() == 0)
919 || (pars_[pit - 1].layout()->isParagraph()
920 && pars_[pit - 1].getDepth() == 0)))
922 maxasc += bufparams.getDefSkip().inPixels(*bv());
925 if (par.params().startOfAppendix())
926 maxasc += int(3 * dh);
928 // This is special code for the chapter, since the label of this
929 // layout is printed in an extra row
930 if (layout->counter == "chapter"
931 && !par.params().labelString().empty()) {
932 labeladdon = int(font_metrics::maxHeight(labelfont)
933 * layout->spacing.getValue()
937 // special code for the top label
938 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
939 || layout->labeltype == LABEL_BIBLIO
940 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
941 && isFirstInSequence(pit, paragraphs())
942 && !par.getLabelstring().empty())
945 font_metrics::maxHeight(labelfont)
946 * layout->spacing.getValue()
948 + (layout->topsep + layout->labelbottomsep) * dh);
951 // Add the layout spaces, for example before and after
952 // a section, or between the items of a itemize or enumerate
955 pit_type prev = depthHook(pit, pars_, par.getDepth());
957 && pars_[prev].layout() == layout
958 && pars_[prev].getDepth() == par.getDepth()
959 && pars_[prev].getLabelWidthString() == par.getLabelWidthString())
961 layoutasc = layout->itemsep * dh;
962 } else if (pit != 0 || row.pos() != 0) {
963 if (layout->topsep > 0)
964 layoutasc = layout->topsep * dh;
967 prev = outerHook(pit, pars_);
968 if (prev != pit_type(pars_.size())) {
969 maxasc += int(pars_[prev].layout()->parsep * dh);
970 } else if (pit != 0) {
971 if (pars_[pit - 1].getDepth() != 0 ||
972 pars_[pit - 1].layout() == layout) {
973 maxasc += int(layout->parsep * dh);
978 // is it a bottom line?
979 if (row.endpos() >= par.size()) {
980 // add the layout spaces, for example before and after
981 // a section, or between the items of a itemize or enumerate
983 pit_type nextpit = pit + 1;
984 if (nextpit != pit_type(pars_.size())) {
989 if (pars_[cpit].getDepth() > pars_[nextpit].getDepth()) {
990 usual = pars_[cpit].layout()->bottomsep * dh;
991 cpit = depthHook(cpit, paragraphs(), pars_[nextpit].getDepth());
992 if (pars_[cpit].layout() != pars_[nextpit].layout()
993 || pars_[nextpit].getLabelWidthString() != pars_[cpit].getLabelWidthString())
995 unusual = pars_[cpit].layout()->bottomsep * dh;
997 layoutdesc = max(unusual, usual);
998 } else if (pars_[cpit].getDepth() == pars_[nextpit].getDepth()) {
999 if (pars_[cpit].layout() != pars_[nextpit].layout()
1000 || pars_[nextpit].getLabelWidthString() != pars_[cpit].getLabelWidthString())
1001 layoutdesc = int(pars_[cpit].layout()->bottomsep * dh);
1006 // incalculate the layout spaces
1007 maxasc += int(layoutasc * 2 / (2 + pars_[pit].getDepth()));
1008 maxdesc += int(layoutdesc * 2 / (2 + pars_[pit].getDepth()));
1010 // Top and bottom margin of the document (only at top-level)
1011 if (bv_owner->text() == this) {
1012 if (pit == 0 && row.pos() == 0)
1014 if (pit + 1 == pars_.size() && row.endpos() == par.size())
1018 row.ascent(maxasc + labeladdon);
1019 row.descent(maxdesc);
1027 void LyXText::breakParagraph(LCursor & cur, bool keep_layout)
1029 BOOST_ASSERT(this == cur.text());
1030 // allow only if at start or end, or all previous is new text
1031 Paragraph & cpar = cur.paragraph();
1032 pit_type cpit = cur.pit();
1034 if (cur.pos() != 0 && cur.pos() != cur.lastpos()
1035 && cpar.isChangeEdited(0, cur.pos()))
1038 LyXTextClass const & tclass = cur.buffer().params().getLyXTextClass();
1039 LyXLayout_ptr const & layout = cpar.layout();
1041 // this is only allowed, if the current paragraph is not empty
1042 // or caption and if it has not the keepempty flag active
1043 if (cur.lastpos() == 0 && !cpar.allowEmpty()
1044 && layout->labeltype != LABEL_SENSITIVE)
1047 // a layout change may affect also the following paragraph
1048 recUndo(cur.pit(), undoSpan(cur.pit()) - 1);
1050 // Always break behind a space
1051 // It is better to erase the space (Dekel)
1052 if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
1053 cpar.erase(cur.pos());
1055 // How should the layout for the new paragraph be?
1056 int preserve_layout = 0;
1058 preserve_layout = 2;
1060 preserve_layout = layout->isEnvironment();
1062 // We need to remember this before we break the paragraph, because
1063 // that invalidates the layout variable
1064 bool sensitive = layout->labeltype == LABEL_SENSITIVE;
1066 // we need to set this before we insert the paragraph.
1067 bool const isempty = cpar.allowEmpty() && cpar.empty();
1069 ::breakParagraph(cur.buffer().params(), paragraphs(), cpit,
1070 cur.pos(), preserve_layout);
1072 // After this, neither paragraph contains any rows!
1075 pit_type next_par = cpit + 1;
1077 // well this is the caption hack since one caption is really enough
1080 // set to standard-layout
1081 pars_[cpit].applyLayout(tclass.defaultLayout());
1083 // set to standard-layout
1084 pars_[next_par].applyLayout(tclass.defaultLayout());
1087 while (!pars_[next_par].empty() && pars_[next_par].isNewline(0))
1088 pars_[next_par].erase(0);
1090 updateCounters(cur.buffer());
1092 // This check is necessary. Otherwise the new empty paragraph will
1093 // be deleted automatically. And it is more friendly for the user!
1094 if (cur.pos() != 0 || isempty)
1095 setCursor(cur, cur.pit() + 1, 0);
1097 setCursor(cur, cur.pit(), 0);
1101 // insert a character, moves all the following breaks in the
1102 // same Paragraph one to the right and make a rebreak
1103 void LyXText::insertChar(LCursor & cur, char c)
1105 BOOST_ASSERT(this == cur.text());
1106 BOOST_ASSERT(c != Paragraph::META_INSET);
1108 recordUndo(cur, Undo::INSERT);
1110 Paragraph & par = cur.paragraph();
1111 // try to remove this
1112 pit_type const pit = cur.pit();
1114 bool const freeSpacing = par.layout()->free_spacing ||
1115 par.isFreeSpacing();
1117 if (lyxrc.auto_number) {
1118 static string const number_operators = "+-/*";
1119 static string const number_unary_operators = "+-";
1120 static string const number_seperators = ".,:";
1122 if (current_font.number() == LyXFont::ON) {
1123 if (!IsDigit(c) && !contains(number_operators, c) &&
1124 !(contains(number_seperators, c) &&
1126 cur.pos() != cur.lastpos() &&
1127 getFont(par, cur.pos()).number() == LyXFont::ON &&
1128 getFont(par, cur.pos() - 1).number() == LyXFont::ON)
1130 number(cur); // Set current_font.number to OFF
1131 } else if (IsDigit(c) &&
1132 real_current_font.isVisibleRightToLeft()) {
1133 number(cur); // Set current_font.number to ON
1135 if (cur.pos() != 0) {
1136 char const c = par.getChar(cur.pos() - 1);
1137 if (contains(number_unary_operators, c) &&
1139 || par.isSeparator(cur.pos() - 2)
1140 || par.isNewline(cur.pos() - 2))
1142 setCharFont(pit, cur.pos() - 1, current_font);
1143 } else if (contains(number_seperators, c)
1145 && getFont(par, cur.pos() - 2).number() == LyXFont::ON) {
1146 setCharFont(pit, cur.pos() - 1, current_font);
1152 // First check, if there will be two blanks together or a blank at
1153 // the beginning of a paragraph.
1154 // I decided to handle blanks like normal characters, the main
1155 // difference are the special checks when calculating the row.fill
1156 // (blank does not count at the end of a row) and the check here
1158 // The bug is triggered when we type in a description environment:
1159 // The current_font is not changed when we go from label to main text
1160 // and it should (along with realtmpfont) when we type the space.
1161 // CHECK There is a bug here! (Asger)
1163 // store the current font. This is because of the use of cursor
1164 // movements. The moving cursor would refresh the current font
1165 LyXFont realtmpfont = real_current_font;
1166 LyXFont rawtmpfont = current_font;
1168 // When the free-spacing option is set for the current layout,
1169 // disable the double-space checking
1170 if (!freeSpacing && IsLineSeparatorChar(c)) {
1171 if (cur.pos() == 0) {
1172 static bool sent_space_message = false;
1173 if (!sent_space_message) {
1174 cur.message(_("You cannot insert a space at the "
1175 "beginning of a paragraph. Please read the Tutorial."));
1176 sent_space_message = true;
1180 BOOST_ASSERT(cur.pos() > 0);
1181 if (par.isLineSeparator(cur.pos() - 1)
1182 || par.isNewline(cur.pos() - 1)) {
1183 static bool sent_space_message = false;
1184 if (!sent_space_message) {
1185 cur.message(_("You cannot type two spaces this way. "
1186 "Please read the Tutorial."));
1187 sent_space_message = true;
1193 par.insertChar(cur.pos(), c, rawtmpfont);
1195 current_font = rawtmpfont;
1196 real_current_font = realtmpfont;
1197 //setCursor(cur, cur.pit(), cur.pos() + 1, false, cur.boundary());
1198 setCursor(cur, cur.pit(), cur.pos() + 1, false, true);
1203 void LyXText::charInserted()
1205 // Here we call finishUndo for every 20 characters inserted.
1206 // This is from my experience how emacs does it. (Lgb)
1207 static unsigned int counter;
1218 LyXText::computeRowMetrics(pit_type const pit, Row const & row) const
1221 Paragraph const & par = pars_[pit];
1223 double w = dim_.wid - row.width();
1225 bool const is_rtl = isRTL(par);
1227 result.x = rightMargin(par);
1229 result.x = leftMargin(pit, row.pos());
1231 // is there a manual margin with a manual label
1232 LyXLayout_ptr const & layout = par.layout();
1234 if (layout->margintype == MARGIN_MANUAL
1235 && layout->labeltype == LABEL_MANUAL) {
1236 /// We might have real hfills in the label part
1237 int nlh = numberOfLabelHfills(par, row);
1239 // A manual label par (e.g. List) has an auto-hfill
1240 // between the label text and the body of the
1242 // But we don't want to do this auto hfill if the par
1247 if (nlh && !par.getLabelWidthString().empty())
1248 result.label_hfill = labelFill(par, row) / double(nlh);
1251 // are there any hfills in the row?
1252 int const nh = numberOfHfills(par, row);
1256 result.hfill = w / nh;
1257 // we don't have to look at the alignment if it is ALIGN_LEFT and
1258 // if the row is already larger then the permitted width as then
1259 // we force the LEFT_ALIGN'edness!
1260 } else if (int(row.width()) < maxwidth_) {
1261 // is it block, flushleft or flushright?
1262 // set x how you need it
1264 if (par.params().align() == LYX_ALIGN_LAYOUT)
1265 align = layout->align;
1267 align = par.params().align();
1269 // Display-style insets should always be on a centred row
1270 // The test on par.size() is to catch zero-size pars, which
1271 // would trigger the assert in Paragraph::getInset().
1272 //inset = par.size() ? par.getInset(row.pos()) : 0;
1274 && par.isInset(row.pos())
1275 && par.getInset(row.pos())->display())
1277 align = LYX_ALIGN_CENTER;
1281 case LYX_ALIGN_BLOCK: {
1282 int const ns = numberOfSeparators(par, row);
1283 bool disp_inset = false;
1284 if (row.endpos() < par.size()) {
1285 InsetBase const * in = par.getInset(row.endpos());
1287 disp_inset = in->display();
1289 // If we have separators, this is not the last row of a
1290 // par, does not end in newline, and is not row above a
1291 // display inset... then stretch it
1293 && row.endpos() < par.size()
1294 && !par.isNewline(row.endpos() - 1)
1297 result.separator = w / ns;
1298 } else if (is_rtl) {
1303 case LYX_ALIGN_RIGHT:
1306 case LYX_ALIGN_CENTER:
1312 bidi.computeTables(par, *bv()->buffer(), row);
1314 pos_type body_pos = par.beginOfBody();
1315 pos_type end = row.endpos();
1318 && (body_pos > end || !par.isLineSeparator(body_pos - 1)))
1320 result.x += font_metrics::width(layout->labelsep, getLabelFont(par));
1321 if (body_pos <= end)
1322 result.x += result.label_hfill;
1330 // the cursor set functions have a special mechanism. When they
1331 // realize, that you left an empty paragraph, they will delete it.
1333 bool LyXText::cursorRightOneWord(LCursor & cur)
1335 BOOST_ASSERT(this == cur.text());
1339 if (old.pos() == old.lastpos() && old.pit() != old.lastpit()) {
1343 // Skip through initial nonword stuff.
1344 // Treat floats and insets as words.
1345 while (old.pos() != old.lastpos() && !old.paragraph().isLetter(old.pos()))
1347 // Advance through word.
1348 while (old.pos() != old.lastpos() && old.paragraph().isLetter(old.pos()))
1351 return setCursor(cur, old.pit(), old.pos());
1355 bool LyXText::cursorLeftOneWord(LCursor & cur)
1357 BOOST_ASSERT(this == cur.text());
1361 if (old.pos() == 0 && old.pit() != 0) {
1363 old.pos() = old.lastpos();
1365 // Skip through initial nonword stuff.
1366 // Treat floats and insets as words.
1367 while (old.pos() != 0 && !old.paragraph().isLetter(old.pos() - 1))
1369 // Advance through word.
1370 while (old.pos() != 0 && old.paragraph().isLetter(old.pos() - 1))
1373 return setCursor(cur, old.pit(), old.pos());
1377 void LyXText::selectWord(LCursor & cur, word_location loc)
1379 BOOST_ASSERT(this == cur.text());
1380 CursorSlice from = cur.top();
1381 CursorSlice to = cur.top();
1382 getWord(from, to, loc);
1383 if (cur.top() != from)
1384 setCursor(cur, from.pit(), from.pos());
1388 setCursor(cur, to.pit(), to.pos());
1393 // Select the word currently under the cursor when no
1394 // selection is currently set
1395 bool LyXText::selectWordWhenUnderCursor(LCursor & cur, word_location loc)
1397 BOOST_ASSERT(this == cur.text());
1398 if (cur.selection())
1400 selectWord(cur, loc);
1401 return cur.selection();
1405 void LyXText::acceptChange(LCursor & cur)
1407 BOOST_ASSERT(this == cur.text());
1408 if (!cur.selection() && cur.lastpos() != 0)
1411 CursorSlice const & startc = cur.selBegin();
1412 CursorSlice const & endc = cur.selEnd();
1413 if (startc.pit() == endc.pit()) {
1414 recordUndoSelection(cur, Undo::INSERT);
1415 pars_[startc.pit()].acceptChange(startc.pos(), endc.pos());
1417 cur.clearSelection();
1418 setCursorIntern(cur, startc.pit(), 0);
1420 #ifdef WITH_WARNINGS
1421 #warning handle multi par selection
1426 void LyXText::rejectChange(LCursor & cur)
1428 BOOST_ASSERT(this == cur.text());
1429 if (!cur.selection() && cur.lastpos() != 0)
1432 CursorSlice const & startc = cur.selBegin();
1433 CursorSlice const & endc = cur.selEnd();
1434 if (startc.pit() == endc.pit()) {
1435 recordUndoSelection(cur, Undo::INSERT);
1436 pars_[startc.pit()].rejectChange(startc.pos(), endc.pos());
1438 cur.clearSelection();
1439 setCursorIntern(cur, startc.pit(), 0);
1441 #ifdef WITH_WARNINGS
1442 #warning handle multi par selection
1447 // Delete from cursor up to the end of the current or next word.
1448 void LyXText::deleteWordForward(LCursor & cur)
1450 BOOST_ASSERT(this == cur.text());
1451 if (cur.lastpos() == 0)
1455 cur.selection() = true;
1456 cursorRightOneWord(cur);
1458 cutSelection(cur, true, false);
1463 // Delete from cursor to start of current or prior word.
1464 void LyXText::deleteWordBackward(LCursor & cur)
1466 BOOST_ASSERT(this == cur.text());
1467 if (cur.lastpos() == 0)
1471 cur.selection() = true;
1472 cursorLeftOneWord(cur);
1474 cutSelection(cur, true, false);
1479 // Kill to end of line.
1480 void LyXText::deleteLineForward(LCursor & cur)
1482 BOOST_ASSERT(this == cur.text());
1483 if (cur.lastpos() == 0) {
1484 // Paragraph is empty, so we just go to the right
1488 cur.selection() = true; // to avoid deletion
1491 // What is this test for ??? (JMarc)
1492 if (!cur.selection())
1493 deleteWordForward(cur);
1495 cutSelection(cur, true, false);
1500 void LyXText::changeCase(LCursor & cur, LyXText::TextCase action)
1502 BOOST_ASSERT(this == cur.text());
1506 if (cur.selection()) {
1507 from = cur.selBegin();
1511 getWord(from, to, lyx::PARTIAL_WORD);
1512 setCursor(cur, to.pit(), to.pos() + 1);
1515 recordUndoSelection(cur);
1517 pos_type pos = from.pos();
1518 int par = from.pit();
1520 while (par != int(pars_.size()) && (pos != to.pos() || par != to.pit())) {
1522 if (pos == pars_[pit].size()) {
1527 unsigned char c = pars_[pit].getChar(pos);
1528 if (c != Paragraph::META_INSET) {
1530 case text_lowercase:
1533 case text_capitalization:
1535 action = text_lowercase;
1537 case text_uppercase:
1542 #ifdef WITH_WARNINGS
1545 pars_[pit].setChar(pos, c);
1551 void LyXText::Delete(LCursor & cur)
1553 BOOST_ASSERT(this == cur.text());
1554 if (cur.pos() != cur.lastpos()) {
1555 recordUndo(cur, Undo::DELETE, cur.pit());
1556 setCursorIntern(cur, cur.pit(), cur.pos() + 1, false, cur.boundary());
1559 // should we do anything in an else branch?
1563 void LyXText::backspace(LCursor & cur)
1565 BOOST_ASSERT(this == cur.text());
1566 if (cur.pos() == 0) {
1567 // The cursor is at the beginning of a paragraph, so
1568 // the the backspace will collapse two paragraphs into
1571 // but it's not allowed unless it's new
1572 Paragraph & par = cur.paragraph();
1573 if (par.isChangeEdited(0, par.size()))
1576 // we may paste some paragraphs
1578 // is it an empty paragraph?
1579 pos_type lastpos = cur.lastpos();
1580 if (lastpos == 0 || (lastpos == 1 && par.isSeparator(0))) {
1581 // This is an empty paragraph and we delete it just
1582 // by moving the cursor one step
1583 // left and let the DeleteEmptyParagraphMechanism
1584 // handle the actual deletion of the paragraph.
1586 if (cur.pit() != 0) {
1587 // For KeepEmpty layouts we need to get
1588 // rid of the keepEmpty setting first.
1589 // And the only way to do this is to
1590 // reset the layout to something
1591 // else: f.ex. the default layout.
1592 if (par.allowEmpty()) {
1593 Buffer & buf = cur.buffer();
1594 BufferParams const & bparams = buf.params();
1595 par.layout(bparams.getLyXTextClass().defaultLayout());
1604 recordUndo(cur, Undo::DELETE, cur.pit() - 1);
1606 pit_type tmppit = cur.pit();
1607 // We used to do cursorLeftIntern() here, but it is
1608 // not a good idea since it triggers the auto-delete
1609 // mechanism. So we do a cursorLeftIntern()-lite,
1610 // without the dreaded mechanism. (JMarc)
1611 if (cur.pit() != 0) {
1612 // steps into the above paragraph.
1613 setCursorIntern(cur, cur.pit() - 1,
1614 pars_[cur.pit() - 1].size(),
1618 // Pasting is not allowed, if the paragraphs have different
1619 // layout. I think it is a real bug of all other
1620 // word processors to allow it. It confuses the user.
1621 // Correction: Pasting is always allowed with standard-layout
1622 Buffer & buf = cur.buffer();
1623 BufferParams const & bufparams = buf.params();
1624 LyXTextClass const & tclass = bufparams.getLyXTextClass();
1625 pit_type const cpit = cur.pit();
1628 && (pars_[cpit].layout() == pars_[tmppit].layout()
1629 || pars_[tmppit].layout() == tclass.defaultLayout())
1630 && pars_[cpit].getAlign() == pars_[tmppit].getAlign()) {
1631 mergeParagraph(bufparams, pars_, cpit);
1633 if (cur.pos() != 0 && pars_[cpit].isSeparator(cur.pos() - 1))
1636 // the counters may have changed
1637 updateCounters(cur.buffer());
1638 setCursor(cur, cur.pit(), cur.pos(), false);
1641 // this is the code for a normal backspace, not pasting
1643 recordUndo(cur, Undo::DELETE);
1644 // We used to do cursorLeftIntern() here, but it is
1645 // not a good idea since it triggers the auto-delete
1646 // mechanism. So we do a cursorLeftIntern()-lite,
1647 // without the dreaded mechanism. (JMarc)
1648 setCursorIntern(cur, cur.pit(), cur.pos() - 1,
1649 false, cur.boundary());
1650 cur.paragraph().erase(cur.pos());
1653 if (cur.pos() == cur.lastpos())
1654 setCurrentFont(cur);
1656 setCursor(cur, cur.pit(), cur.pos(), false, cur.boundary());
1660 Paragraph & LyXText::getPar(pit_type par) const
1662 //lyxerr << "getPar: " << par << " from " << paragraphs().size() << endl;
1663 BOOST_ASSERT(par >= 0);
1664 BOOST_ASSERT(par < int(paragraphs().size()));
1665 return paragraphs()[par];
1669 Row const & LyXText::firstRow() const
1671 return *paragraphs().front().rows().begin();
1675 bool LyXText::redoParagraph(pit_type const pit)
1677 // remove rows of paragraph, keep track of height changes
1678 Paragraph & par = pars_[pit];
1680 // Add bibitem insets if necessary
1681 if (par.layout()->labeltype == LABEL_BIBLIO) {
1682 bool hasbibitem(false);
1683 if (!par.insetlist.empty()
1684 // Insist on it being in pos 0
1685 && par.getChar(0) == Paragraph::META_INSET) {
1686 InsetBase * inset = par.insetlist.begin()->inset;
1687 if (inset->lyxCode() == InsetBase::BIBITEM_CODE)
1691 InsetBibitem * inset(new
1692 InsetBibitem(InsetCommandParams("bibitem")));
1693 par.insertInset(0, static_cast<InsetBase *>(inset));
1694 bv()->cursor().posRight();
1699 InsetList::iterator ii = par.insetlist.begin();
1700 InsetList::iterator iend = par.insetlist.end();
1701 for (; ii != iend; ++ii) {
1703 int const w = maxwidth_ - leftMargin(pit) - rightMargin(par);
1704 MetricsInfo mi(bv(), getFont(par, ii->pos), w);
1705 ii->inset->metrics(mi, dim);
1708 // rebreak the paragraph
1712 par.setBeginOfBody();
1716 rowBreakPoint(pit, row);
1717 setRowWidth(pit, row);
1718 setHeightOfRow(pit, row);
1719 par.rows().push_back(row);
1720 dim.wid = std::max(dim.wid, row.width());
1721 dim.des += row.height();
1723 } while (z < par.size());
1725 dim.asc += par.rows()[0].ascent();
1726 dim.des -= par.rows()[0].ascent();
1728 bool const same = dim == par.dim();
1731 //lyxerr << "redoParagraph: " << par.rows().size() << " rows\n";
1737 void LyXText::metrics(MetricsInfo & mi, Dimension & dim)
1739 //BOOST_ASSERT(mi.base.textwidth);
1740 if (mi.base.textwidth)
1741 maxwidth_ = mi.base.textwidth;
1742 //lyxerr << "LyXText::metrics: width: " << mi.base.textwidth
1743 // << " maxWidth: " << maxwidth_ << "\nfont: " << mi.base.font << endl;
1744 // save the caller's font locally:
1745 font_ = mi.base.font;
1749 for (pit_type pit = 0, n = paragraphs().size(); pit != n; ++pit) {
1751 Paragraph & par = paragraphs()[pit];
1753 if (w < par.width())
1758 dim.asc = pars_[0].ascent();
1759 dim.des = h - dim.asc;
1765 // only used for inset right now. should also be used for main text
1766 void LyXText::draw(PainterInfo & pi, int x, int y) const
1768 paintTextInset(*this, pi, x, y);
1773 // only used for inset right now. should also be used for main text
1774 void LyXText::drawSelection(PainterInfo & pi, int x , int) const
1776 LCursor & cur = pi.base.bv->cursor();
1777 if (!cur.selection())
1779 if (!ptr_cmp(cur.text(), this))
1782 lyxerr << "draw selection at " << x << endl;
1784 // is there a better way of getting these two iterators?
1785 DocIterator beg = cur;
1786 DocIterator end = cur;
1788 beg.top() = cur.selBegin();
1789 end.top() = cur.selEnd();
1791 // the selection doesn't touch the visible screen
1792 if (bv_funcs::status(pi.base.bv, beg) == bv_funcs::CUR_BELOW
1793 || bv_funcs::status(pi.base.bv, end) == bv_funcs::CUR_ABOVE)
1796 Paragraph const & par1 = pars_[beg.pit()];
1797 Paragraph const & par2 = pars_[end.pit()];
1799 Row const & row1 = par1.getRow(beg.pos());
1800 Row const & row2 = par2.getRow(end.pos());
1803 if (bv_funcs::status(pi.base.bv, beg) == bv_funcs::CUR_ABOVE) {
1808 y1 = bv_funcs::getPos(beg).y_ - row1.ascent();
1809 int const startx = cursorX(beg.top(), begin.boundary());
1810 x1 = isRTL(par1) ? startx : 0;
1811 x2 = isRTL(par1) ? 0 + dim_.wid : startx;
1815 if (bv_funcs::status(pi.base.bv, end) == bv_funcs::CUR_BELOW) {
1816 y2 = pi.base.bv->workHeight();
1820 y2 = bv_funcs::getPos(end).y_ + row2.descent();
1821 int const endx = cursorX(end.top(), end.boundary());
1822 X1 = isRTL(par2) ? 0 : endx;
1823 X2 = isRTL(par2) ? endx : 0 + dim_.wid;
1826 lyxerr << " y1: " << y1 << " y2: " << y2
1827 << " xo: " << xo_ << " wid: " << dim_.wid
1830 // paint big rectangle in one go
1831 pi.pain.fillRectangle(x, y1, dim_.wid, y2 - y1, LColor::selection);
1833 // reset background at begin of first selected line
1834 pi.pain.fillRectangle(x + x1, y1, x2 - x1, row1.height(),
1835 LColor::background);
1837 // reset background at end of last selected line
1838 pi.pain.fillRectangle(x + X1, y2 - row2.height(),
1839 X2 - X1, row2.height(), LColor::background);
1844 void LyXText::drawSelection(PainterInfo & pi, int x, int) const
1846 LCursor & cur = pi.base.bv->cursor();
1847 if (!cur.selection())
1849 if (!ptr_cmp(cur.text(), this))
1852 lyxerr[Debug::DEBUG]
1853 << BOOST_CURRENT_FUNCTION
1854 << "draw selection at " << x
1857 // is there a better way of getting these two iterators?
1858 DocIterator beg = cur;
1859 DocIterator end = cur;
1861 beg.top() = cur.selBegin();
1862 end.top() = cur.selEnd();
1864 // the selection doesn't touch the visible screen
1865 if (bv_funcs::status(pi.base.bv, beg) == bv_funcs::CUR_BELOW
1866 || bv_funcs::status(pi.base.bv, end) == bv_funcs::CUR_ABOVE)
1869 Paragraph const & par1 = pars_[beg.pit()];
1870 Paragraph const & par2 = pars_[end.pit()];
1872 bool const above = (bv_funcs::status(pi.base.bv, beg)
1873 == bv_funcs::CUR_ABOVE);
1874 bool const below = (bv_funcs::status(pi.base.bv, end)
1875 == bv_funcs::CUR_BELOW);
1883 Row const & row1 = par1.getRow(beg.pos());
1884 y1 = bv_funcs::getPos(beg, beg.boundary()).y_ - row1.ascent();
1885 y2 = y1 + row1.height();
1886 int const startx = cursorX(beg.top(), false);
1887 x1 = !isRTL(par1) ? startx : 0;
1888 x2 = !isRTL(par1) ? 0 + dim_.wid : startx;
1893 Y1 = pi.base.bv->workHeight();
1894 Y2 = pi.base.bv->workHeight();
1898 Row const & row2 = par2.getRow(end.pos());
1899 Y1 = bv_funcs::getPos(end, end.boundary()).y_ - row2.ascent();
1900 Y2 = Y1 + row2.height();
1901 int const endx = cursorX(end.top(), false);
1902 X1 = !isRTL(par2) ? 0 : endx;
1903 X2 = !isRTL(par2) ? endx : 0 + dim_.wid;
1906 if (!above && !below && &par1.getRow(beg.pos())
1907 == &par2.getRow(end.pos()))
1909 // paint only one rectangle
1910 pi.pain.fillRectangle(x + x1, y1, X2 - x1, y2 - y1,
1915 // paint upper rectangle
1916 pi.pain.fillRectangle(x + x1, y1, x2 - x1, y2 - y1,
1918 // paint bottom rectangle
1919 pi.pain.fillRectangle(x + X1, Y1, X2 - X1, Y2 - Y1,
1921 // paint center rectangle
1922 pi.pain.fillRectangle(x, y2, dim_.wid,
1923 Y1 - y2, LColor::selection);
1927 bool LyXText::isLastRow(pit_type pit, Row const & row) const
1929 return row.endpos() >= pars_[pit].size()
1930 && pit + 1 == pit_type(paragraphs().size());
1934 bool LyXText::isFirstRow(pit_type pit, Row const & row) const
1936 return row.pos() == 0 && pit == 0;
1940 void LyXText::getWord(CursorSlice & from, CursorSlice & to,
1941 word_location const loc)
1943 Paragraph const & from_par = pars_[from.pit()];
1945 case lyx::WHOLE_WORD_STRICT:
1946 if (from.pos() == 0 || from.pos() == from_par.size()
1947 || !from_par.isLetter(from.pos())
1948 || !from_par.isLetter(from.pos() - 1)) {
1952 // no break here, we go to the next
1954 case lyx::WHOLE_WORD:
1955 // If we are already at the beginning of a word, do nothing
1956 if (!from.pos() || !from_par.isLetter(from.pos() - 1))
1958 // no break here, we go to the next
1960 case lyx::PREVIOUS_WORD:
1961 // always move the cursor to the beginning of previous word
1962 while (from.pos() && from_par.isLetter(from.pos() - 1))
1965 case lyx::NEXT_WORD:
1966 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet"
1969 case lyx::PARTIAL_WORD:
1970 // no need to move the 'from' cursor
1974 Paragraph & to_par = pars_[to.pit()];
1975 while (to.pos() < to_par.size() && to_par.isLetter(to.pos()))
1980 void LyXText::write(Buffer const & buf, std::ostream & os) const
1982 ParagraphList::const_iterator pit = paragraphs().begin();
1983 ParagraphList::const_iterator end = paragraphs().end();
1984 Paragraph::depth_type dth = 0;
1985 for (; pit != end; ++pit)
1986 pit->write(buf, os, buf.params(), dth);
1990 bool LyXText::read(Buffer const & buf, LyXLex & lex)
1992 static Change current_change;
1994 Paragraph::depth_type depth = 0;
1996 while (lex.isOK()) {
1998 string const token = lex.getString();
2003 if (token == "\\end_inset") {
2007 if (token == "\\end_body") {
2011 if (token == "\\begin_body") {
2015 if (token == "\\end_document") {
2019 if (token == "\\begin_layout") {
2020 lex.pushToken(token);
2023 par.params().depth(depth);
2024 if (buf.params().tracking_changes)
2026 par.setFont(0, LyXFont(LyXFont::ALL_INHERIT, buf.params().language));
2027 pars_.push_back(par);
2029 // FIXME: goddamn InsetTabular makes us pass a Buffer
2031 ::readParagraph(buf, pars_.back(), lex);
2033 } else if (token == "\\begin_deeper") {
2035 } else if (token == "\\end_deeper") {
2037 lex.printError("\\end_deeper: " "depth is already null");
2042 lyxerr << "Handling unknown body token: `"
2043 << token << '\'' << endl;
2050 int LyXText::ascent() const
2056 int LyXText::descent() const
2062 int LyXText::cursorX(CursorSlice const & sl, bool boundary) const
2064 pit_type const pit = sl.pit();
2065 Paragraph const & par = pars_[pit];
2066 if (par.rows().empty())
2069 pos_type ppos = sl.pos();
2070 // Correct position in front of big insets
2071 bool const boundary_correction = ppos != 0 && boundary;
2072 if (boundary_correction)
2075 Row const & row = par.getRow(ppos);
2077 pos_type cursor_vpos = 0;
2079 RowMetrics const m = computeRowMetrics(pit, row);
2082 pos_type const row_pos = row.pos();
2083 pos_type const end = row.endpos();
2086 cursor_vpos = row_pos;
2087 else if (ppos >= end)
2088 cursor_vpos = isRTL(par) ? row_pos : end;
2089 else if (ppos > row_pos && ppos >= end)
2090 // Place cursor after char at (logical) position pos - 1
2091 cursor_vpos = (bidi.level(ppos - 1) % 2 == 0)
2092 ? bidi.log2vis(ppos - 1) + 1 : bidi.log2vis(ppos - 1);
2094 // Place cursor before char at (logical) position ppos
2095 cursor_vpos = (bidi.level(ppos) % 2 == 0)
2096 ? bidi.log2vis(ppos) : bidi.log2vis(ppos) + 1;
2098 pos_type body_pos = par.beginOfBody();
2100 (body_pos > end || !par.isLineSeparator(body_pos - 1)))
2103 for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
2104 pos_type pos = bidi.vis2log(vpos);
2105 if (body_pos > 0 && pos == body_pos - 1) {
2107 + font_metrics::width(par.layout()->labelsep,
2109 if (par.isLineSeparator(body_pos - 1))
2110 x -= singleWidth(par, body_pos - 1);
2113 x += singleWidth(par, pos);
2115 if (hfillExpansion(par, row, pos))
2116 x += (pos >= body_pos) ? m.hfill : m.label_hfill;
2117 else if (par.isSeparator(pos) && pos >= body_pos)
2121 // see correction above
2122 if (boundary_correction)
2123 x += singleWidth(par, ppos);
2129 int LyXText::cursorY(CursorSlice const & sl, bool boundary) const
2131 //lyxerr << "LyXText::cursorY: boundary: " << boundary << std::endl;
2132 Paragraph const & par = getPar(sl.pit());
2134 h -= pars_[0].rows()[0].ascent();
2135 for (pit_type pit = 0; pit < sl.pit(); ++pit)
2136 h += pars_[pit].height();
2138 if (pos && boundary)
2140 size_t const rend = par.pos2row(pos);
2141 for (size_t rit = 0; rit != rend; ++rit)
2142 h += par.rows()[rit].height();
2143 h += par.rows()[rend].ascent();
2148 // Returns the current font and depth as a message.
2149 string LyXText::currentState(LCursor & cur)
2151 BOOST_ASSERT(this == cur.text());
2152 Buffer & buf = cur.buffer();
2153 Paragraph const & par = cur.paragraph();
2154 std::ostringstream os;
2156 bool const show_change = buf.params().tracking_changes
2157 && cur.pos() != cur.lastpos()
2158 && par.lookupChange(cur.pos()) != Change::UNCHANGED;
2161 Change change = par.lookupChangeFull(cur.pos());
2162 Author const & a = buf.params().authors().get(change.author);
2163 os << _("Change: ") << a.name();
2164 if (!a.email().empty())
2165 os << " (" << a.email() << ")";
2166 if (change.changetime)
2167 os << _(" at ") << ctime(&change.changetime);
2171 // I think we should only show changes from the default
2173 LyXFont font = real_current_font;
2174 font.reduce(buf.params().getLyXTextClass().defaultfont());
2176 // avoid _(...) re-entrance problem
2177 string const s = font.stateText(&buf.params());
2178 os << bformat(_("Font: %1$s"), s);
2180 // os << bformat(_("Font: %1$s"), font.stateText(&buf.params));
2182 // The paragraph depth
2183 int depth = cur.paragraph().getDepth();
2185 os << bformat(_(", Depth: %1$d"), depth);
2187 // The paragraph spacing, but only if different from
2189 Spacing const & spacing = par.params().spacing();
2190 if (!spacing.isDefault()) {
2191 os << _(", Spacing: ");
2192 switch (spacing.getSpace()) {
2193 case Spacing::Single:
2196 case Spacing::Onehalf:
2199 case Spacing::Double:
2202 case Spacing::Other:
2203 os << _("Other (") << spacing.getValueAsString() << ')';
2205 case Spacing::Default:
2206 // should never happen, do nothing
2211 #ifdef DEVEL_VERSION
2212 os << _(", Inset: ") << &cur.inset();
2213 os << _(", Paragraph: ") << cur.pit();
2214 os << _(", Id: ") << par.id();
2215 os << _(", Position: ") << cur.pos();
2216 os << _(", Boundary: ") << cur.boundary();
2217 // Row & row = cur.textRow();
2218 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
2224 string LyXText::getPossibleLabel(LCursor & cur) const
2226 pit_type pit = cur.pit();
2228 LyXLayout_ptr layout = pars_[pit].layout();
2230 if (layout->latextype == LATEX_PARAGRAPH && pit != 0) {
2231 LyXLayout_ptr const & layout2 = pars_[pit - 1].layout();
2232 if (layout2->latextype != LATEX_PARAGRAPH) {
2238 string text = layout->latexname().substr(0, 3);
2239 if (layout->latexname() == "theorem")
2240 text = "thm"; // Create a correct prefix for prettyref
2243 if (layout->latextype == LATEX_PARAGRAPH || lyxrc.label_init_length < 0)
2246 string par_text = pars_[pit].asString(cur.buffer(), false);
2247 for (int i = 0; i < lyxrc.label_init_length; ++i) {
2248 if (par_text.empty())
2251 par_text = split(par_text, head, ' ');
2252 // Is it legal to use spaces in labels ?
2262 //pos_type LyXText::x2pos(pit_type pit, int row, int x) const
2266 // Paragraph const & par = pars_[pit];
2267 // Row const & r = par.rows()[row];
2268 // int pos = r.pos();
2269 // for (; currx < x && pos < r.endpos(); ++pos) {
2271 // currx += singleWidth(par, pos);
2273 // if (abs(lastx - x) < abs(currx - x) && pos != r.pos())
2279 pos_type LyXText::x2pos(pit_type pit, int row, int x) const
2281 BOOST_ASSERT(row < int(pars_[pit].rows().size()));
2283 Row const & r = pars_[pit].rows()[row];
2284 return r.pos() + getColumnNearX(pit, r, x, bound);
2288 //int LyXText::pos2x(pit_type pit, pos_type pos) const
2290 // Paragraph const & par = pars_[pit];
2291 // Row const & r = par.rows()[row];
2297 // x,y are screen coordinates
2298 // sets cursor only within this LyXText
2299 void LyXText::setCursorFromCoordinates(LCursor & cur, int const x, int const y)
2301 pit_type pit = getPitNearY(y);
2302 int yy = theCoords.get(this, pit).y_ - pars_[pit].ascent();
2303 lyxerr[Debug::DEBUG]
2304 << BOOST_CURRENT_FUNCTION
2308 << " yy: " << yy << endl;
2310 Paragraph const & par = pars_[pit];
2312 BOOST_ASSERT(par.rows().size());
2313 for (; r < int(par.rows().size()) - 1; ++r) {
2314 Row const & row = par.rows()[r];
2315 if (int(yy + row.height()) > y)
2320 Row const & row = par.rows()[r];
2322 lyxerr[Debug::DEBUG]
2323 << BOOST_CURRENT_FUNCTION
2325 << " from pos: " << row.pos()
2330 pos_type const pos = row.pos() + getColumnNearX(pit, row, xx, bound);
2332 lyxerr[Debug::DEBUG]
2333 << BOOST_CURRENT_FUNCTION
2334 << ": setting cursor pit: " << pit
2338 setCursor(cur, pit, pos, true, bound);