2 * \file src/TextMetrics.C
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
13 * \author Abdelrazak Younes
15 * Full author contact details are available in file CREDITS.
20 #include "TextMetrics.h"
23 #include "bufferparams.h"
24 #include "BufferView.h"
25 #include "paragraph_funcs.h"
26 #include "pariterator.h"
27 #include "coordcache.h"
29 #include "funcrequest.h"
30 #include "FontIterator.h"
32 #include "lyxlength.h"
35 #include "metricsinfo.h"
36 #include "ParagraphParameters.h"
39 #include "frontends/FontMetrics.h"
40 #include "frontends/Painter.h"
48 using frontend::FontMetrics;
52 int numberOfSeparators(Paragraph const & par, Row const & row)
54 pos_type const first = max(row.pos(), par.beginOfBody());
55 pos_type const last = row.endpos() - 1;
57 for (pos_type p = first; p < last; ++p) {
58 if (par.isSeparator(p))
65 int numberOfLabelHfills(Paragraph const & par, Row const & row)
67 pos_type last = row.endpos() - 1;
68 pos_type first = row.pos();
70 // hfill *DO* count at the beginning of paragraphs!
72 while (first < last && par.isHfill(first))
76 last = min(last, par.beginOfBody());
78 for (pos_type p = first; p < last; ++p) {
86 int numberOfHfills(Paragraph const & par, Row const & row)
88 pos_type const last = row.endpos();
89 pos_type first = row.pos();
91 // hfill *DO* count at the beginning of paragraphs!
93 while (first < last && par.isHfill(first))
97 first = max(first, par.beginOfBody());
100 for (pos_type p = first; p < last; ++p) {
109 TextMetrics::TextMetrics(BufferView * bv, LyXText * text)
110 : bv_(bv), text_(text)
113 max_width_ = bv_->workWidth();
114 dim_.wid = max_width_;
118 //text_->updateLabels(*bv->buffer());
122 ParagraphMetrics const & TextMetrics::parMetrics(pit_type pit) const
124 return const_cast<TextMetrics *>(this)->parMetrics(pit, true);
128 ParagraphMetrics & TextMetrics::parMetrics(pit_type pit,
131 ParMetricsCache::iterator pmc_it = par_metrics_.find(pit);
132 if (pmc_it == par_metrics_.end()) {
133 pmc_it = par_metrics_.insert(
134 std::make_pair(pit, ParagraphMetrics(text_->getPar(pit)))).first;
136 if (pmc_it->second.rows().empty() && redo) {
139 return pmc_it->second;
143 bool TextMetrics::metrics(MetricsInfo & mi, Dimension & dim)
145 BOOST_ASSERT(mi.base.textwidth);
146 max_width_ = mi.base.textwidth;
148 //lyxerr << "LyXText::metrics: width: " << mi.base.textwidth
149 // << " maxWidth: " << max_width_ << "\nfont: " << mi.base.font << endl;
151 bool changed = false;
155 for (pit_type pit = 0, n = text_->paragraphs().size(); pit != n; ++pit) {
156 changed |= redoParagraph(pit);
157 ParagraphMetrics const & pm = parMetrics(pit);
164 dim.asc = parMetrics(0).ascent();
165 dim.des = h - dim.asc;
167 changed |= dim_ != dim;
173 int TextMetrics::rightMargin(ParagraphMetrics const & pm) const
175 return main_text_? pm.rightMargin(*bv_->buffer()) : 0;
179 int TextMetrics::rightMargin(pit_type const pit) const
181 return main_text_? par_metrics_[pit].rightMargin(*bv_->buffer()) : 0;
185 bool TextMetrics::redoParagraph(pit_type const pit)
187 Paragraph & par = text_->getPar(pit);
188 ParagraphMetrics pm(par);
189 Buffer & buffer = *bv_->buffer();
190 main_text_ = (text_ == &buffer.text());
191 bool changed = false;
193 // FIXME: this has nothing to do here and is the reason why text_ is not
195 if (par.checkBiblio(buffer.params().trackChanges))
196 const_cast<LCursor &>(bv_->cursor()).posRight();
198 // Optimisation: this is used in the next two loops
199 // so better to calculate that once here.
200 int const right_margin = rightMargin(pm);
203 // FIXME: We should always use getFont(), see documentation of
204 // noFontChange() in insetbase.h.
205 LyXFont const bufferfont = buffer.params().getFont();
206 InsetList::const_iterator ii = par.insetlist.begin();
207 InsetList::const_iterator iend = par.insetlist.end();
208 for (; ii != iend; ++ii) {
210 int const w = max_width_ - text_->leftMargin(buffer, max_width_, pit, ii->pos)
212 LyXFont const & font = ii->inset->noFontChange() ?
213 bufferfont : text_->getFont(buffer, par, ii->pos);
214 MetricsInfo mi(bv_, font, w);
215 changed |= ii->inset->metrics(mi, dim);
218 // rebreak the paragraph
221 par.setBeginOfBody();
223 // maximum pixel width of a row
224 int width = max_width_ - right_margin; // - leftMargin(buffer, max_width_, pit, row);
227 rowBreakPoint(width, pit, row);
228 setRowWidth(right_margin, pit, row);
229 setHeightOfRow(pit, row);
230 pm.rows().push_back(row);
231 pm.dim().wid = std::max(pm.dim().wid, row.width());
232 pm.dim().des += row.height();
234 } while (z < par.size());
236 // Make sure that if a par ends in newline, there is one more row
238 // FIXME this is a dirty trick. Now the _same_ position in the
239 // paragraph occurs in _two_ different rows, and has two different
240 // display positions, leading to weird behaviour when moving up/down.
241 if (z > 0 && par.isNewline(z - 1)) {
244 setRowWidth(right_margin, pit, row);
245 setHeightOfRow(pit, row);
246 pm.rows().push_back(row);
247 pm.dim().des += row.height();
250 pm.dim().asc += pm.rows()[0].ascent();
251 pm.dim().des -= pm.rows()[0].ascent();
253 // IMPORTANT NOTE: We pass 'false' explicitely in order to not call
254 // redoParagraph() recursively inside parMetrics.
255 Dimension old_dim = parMetrics(pit, false).dim();
257 changed |= old_dim.height() != pm.dim().height();
259 par_metrics_[pit] = pm;
264 RowMetrics TextMetrics::computeRowMetrics(pit_type const pit,
265 Row const & row) const
268 Buffer & buffer = *bv_->buffer();
269 Paragraph const & par = text_->getPar(pit);
271 double w = dim_.wid - row.width();
273 bool const is_rtl = text_->isRTL(buffer, par);
275 result.x = rightMargin(pit);
277 result.x = text_->leftMargin(buffer, max_width_, pit, row.pos());
279 // is there a manual margin with a manual label
280 LyXLayout_ptr const & layout = par.layout();
282 if (layout->margintype == MARGIN_MANUAL
283 && layout->labeltype == LABEL_MANUAL) {
284 /// We might have real hfills in the label part
285 int nlh = numberOfLabelHfills(par, row);
287 // A manual label par (e.g. List) has an auto-hfill
288 // between the label text and the body of the
290 // But we don't want to do this auto hfill if the par
295 if (nlh && !par.getLabelWidthString().empty())
296 result.label_hfill = labelFill(par, row) / double(nlh);
299 // are there any hfills in the row?
300 int const nh = numberOfHfills(par, row);
304 result.hfill = w / nh;
305 // we don't have to look at the alignment if it is ALIGN_LEFT and
306 // if the row is already larger then the permitted width as then
307 // we force the LEFT_ALIGN'edness!
308 } else if (int(row.width()) < max_width_) {
309 // is it block, flushleft or flushright?
310 // set x how you need it
312 if (par.params().align() == LYX_ALIGN_LAYOUT)
313 align = layout->align;
315 align = par.params().align();
317 // Display-style insets should always be on a centred row
318 // The test on par.size() is to catch zero-size pars, which
319 // would trigger the assert in Paragraph::getInset().
320 //inset = par.size() ? par.getInset(row.pos()) : 0;
322 && par.isInset(row.pos())
323 && par.getInset(row.pos())->display())
325 align = LYX_ALIGN_CENTER;
329 case LYX_ALIGN_BLOCK: {
330 int const ns = numberOfSeparators(par, row);
331 bool disp_inset = false;
332 if (row.endpos() < par.size()) {
333 InsetBase const * in = par.getInset(row.endpos());
335 disp_inset = in->display();
337 // If we have separators, this is not the last row of a
338 // par, does not end in newline, and is not row above a
339 // display inset... then stretch it
341 && row.endpos() < par.size()
342 && !par.isNewline(row.endpos() - 1)
345 result.separator = w / ns;
351 case LYX_ALIGN_RIGHT:
354 case LYX_ALIGN_CENTER:
360 text_->bidi.computeTables(par, buffer, row);
362 pos_type body_pos = par.beginOfBody();
363 pos_type end = row.endpos();
366 && (body_pos > end || !par.isLineSeparator(body_pos - 1)))
368 docstring const lsep = from_utf8(layout->labelsep);
369 result.x += theFontMetrics(text_->getLabelFont(buffer, par)).width(lsep);
371 result.x += result.label_hfill;
379 int TextMetrics::labelFill(Paragraph const & par, Row const & row) const
381 Buffer & buffer = *bv_->buffer();
383 pos_type last = par.beginOfBody();
384 BOOST_ASSERT(last > 0);
386 // -1 because a label ends with a space that is in the label
389 // a separator at this end does not count
390 if (par.isLineSeparator(last))
394 for (pos_type i = row.pos(); i <= last; ++i)
395 w += text_->singleWidth(buffer, par, i);
397 docstring const & label = par.params().labelWidthString();
401 FontMetrics const & fm
402 = theFontMetrics(text_->getLabelFont(buffer, par));
404 return max(0, fm.width(label) - w);
410 // this needs special handling - only newlines count as a break point
411 pos_type addressBreakPoint(pos_type i, Paragraph const & par)
413 pos_type const end = par.size();
416 if (par.isNewline(i))
425 int TextMetrics::labelEnd(pit_type const pit) const
427 // labelEnd is only needed if the layout fills a flushleft label.
428 if (text_->getPar(pit).layout()->margintype != MARGIN_MANUAL)
430 // return the beginning of the body
431 return text_->leftMargin(*bv_->buffer(), max_width_, pit);
435 void TextMetrics::rowBreakPoint(int width, pit_type const pit,
438 Buffer & buffer = *bv_->buffer();
439 Paragraph const & par = text_->getPar(pit);
440 pos_type const end = par.size();
441 pos_type const pos = row.pos();
452 LyXLayout_ptr const & layout = par.layout();
454 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
455 row.endpos(addressBreakPoint(pos, par));
459 pos_type const body_pos = par.beginOfBody();
462 // Now we iterate through until we reach the right margin
463 // or the end of the par, then choose the possible break
466 int label_end = labelEnd(pit);
467 int const left = text_->leftMargin(buffer, max_width_, pit, pos);
470 // pixel width since last breakpoint
473 FontIterator fi = FontIterator(buffer, *text_, par, pos);
474 pos_type point = end;
476 FontMetrics const & fm = theFontMetrics(text_->getLabelFont(buffer, par));
477 for ( ; i < end; ++i, ++fi) {
478 char_type const c = par.getChar(i);
479 int thiswidth = text_->singleWidth(par, i, c, *fi);
481 // add the auto-hfill from label end to the body
482 if (body_pos && i == body_pos) {
483 docstring lsep = from_utf8(layout->labelsep);
484 int add = fm.width(lsep);
485 if (par.isLineSeparator(i - 1))
486 add -= text_->singleWidth(buffer, par, i - 1);
488 add = std::max(add, label_end - x);
493 chunkwidth += thiswidth;
495 // break before a character that will fall off
496 // the right of the row
498 // if no break before, break here
499 if (point == end || chunkwidth >= width - left) {
506 // exit on last registered breakpoint:
510 if (par.isNewline(i)) {
516 if (par.isInset(i + 1) && par.getInset(i + 1)->display()) {
521 if (par.isInset(i) && par.getInset(i)->display()) {
527 if (!par.isInset(i) || par.getInset(i)->isChar()) {
528 // some insets are line separators too
529 if (par.isLineSeparator(i)) {
530 // register breakpoint:
537 // maybe found one, but the par is short enough.
538 if (i == end && x < width)
541 // manual labels cannot be broken in LaTeX. But we
542 // want to make our on-screen rendering of footnotes
544 if (body_pos && point < body_pos)
551 void TextMetrics::setRowWidth(int right_margin,
552 pit_type const pit, Row & row) const
554 Buffer & buffer = *bv_->buffer();
555 // get the pure distance
556 pos_type const end = row.endpos();
558 Paragraph const & par = text_->getPar(pit);
559 docstring const labelsep = from_utf8(par.layout()->labelsep);
560 int w = text_->leftMargin(buffer, max_width_, pit, row.pos());
561 int label_end = labelEnd(pit);
563 pos_type const body_pos = par.beginOfBody();
564 pos_type i = row.pos();
566 FontMetrics const & fm = theFontMetrics(text_->getLabelFont(buffer, par));
569 FontIterator fi = FontIterator(buffer, *text_, par, i);
570 for ( ; i < end; ++i, ++fi) {
571 if (body_pos > 0 && i == body_pos) {
572 w += fm.width(labelsep);
573 if (par.isLineSeparator(i - 1))
574 w -= text_->singleWidth(buffer, par, i - 1);
575 w = max(w, label_end);
577 char_type const c = par.getChar(i);
578 w += text_->singleWidth(par, i, c, *fi);
582 if (body_pos > 0 && body_pos >= end) {
583 w += fm.width(labelsep);
584 if (end > 0 && par.isLineSeparator(end - 1))
585 w -= text_->singleWidth(buffer, par, end - 1);
586 w = max(w, label_end);
589 row.width(w + right_margin);
593 void TextMetrics::setHeightOfRow(pit_type const pit,
596 Paragraph const & par = text_->getPar(pit);
597 // get the maximum ascent and the maximum descent
598 double layoutasc = 0;
599 double layoutdesc = 0;
600 double const dh = defaultRowHeight();
602 // ok, let us initialize the maxasc and maxdesc value.
603 // Only the fontsize count. The other properties
604 // are taken from the layoutfont. Nicer on the screen :)
605 LyXLayout_ptr const & layout = par.layout();
607 // as max get the first character of this row then it can
608 // increase but not decrease the height. Just some point to
609 // start with so we don't have to do the assignment below too
611 Buffer const & buffer = *bv_->buffer();
612 LyXFont font = text_->getFont(buffer, par, row.pos());
613 LyXFont::FONT_SIZE const tmpsize = font.size();
614 font = text_->getLayoutFont(buffer, pit);
615 LyXFont::FONT_SIZE const size = font.size();
616 font.setSize(tmpsize);
618 LyXFont labelfont = text_->getLabelFont(buffer, par);
620 FontMetrics const & labelfont_metrics = theFontMetrics(labelfont);
621 FontMetrics const & fontmetrics = theFontMetrics(font);
623 // these are minimum values
624 double const spacing_val = layout->spacing.getValue()
625 * text_->spacing(buffer, par);
626 //lyxerr << "spacing_val = " << spacing_val << endl;
627 int maxasc = int(fontmetrics.maxAscent() * spacing_val);
628 int maxdesc = int(fontmetrics.maxDescent() * spacing_val);
630 // insets may be taller
631 InsetList::const_iterator ii = par.insetlist.begin();
632 InsetList::const_iterator iend = par.insetlist.end();
633 for ( ; ii != iend; ++ii) {
634 if (ii->pos >= row.pos() && ii->pos < row.endpos()) {
635 maxasc = max(maxasc, ii->inset->ascent());
636 maxdesc = max(maxdesc, ii->inset->descent());
640 // Check if any custom fonts are larger (Asger)
641 // This is not completely correct, but we can live with the small,
642 // cosmetic error for now.
644 pos_type const pos_end = row.endpos();
646 LyXFont::FONT_SIZE maxsize =
647 par.highestFontInRange(row.pos(), pos_end, size);
648 if (maxsize > font.size()) {
649 font.setSize(maxsize);
650 maxasc = max(maxasc, fontmetrics.maxAscent());
651 maxdesc = max(maxdesc, fontmetrics.maxDescent());
654 // This is nicer with box insets:
659 ParagraphList const & pars = text_->paragraphs();
662 if (row.pos() == 0) {
663 BufferParams const & bufparams = buffer.params();
664 // some parksips VERY EASY IMPLEMENTATION
665 if (bufparams.paragraph_separation
666 == BufferParams::PARSEP_SKIP
668 && ((layout->isParagraph() && par.getDepth() == 0)
669 || (pars[pit - 1].layout()->isParagraph()
670 && pars[pit - 1].getDepth() == 0)))
672 maxasc += bufparams.getDefSkip().inPixels(*bv_);
675 if (par.params().startOfAppendix())
676 maxasc += int(3 * dh);
678 // This is special code for the chapter, since the label of this
679 // layout is printed in an extra row
680 if (layout->counter == "chapter"
681 && !par.params().labelString().empty()) {
682 labeladdon = int(labelfont_metrics.maxHeight()
683 * layout->spacing.getValue()
684 * text_->spacing(buffer, par));
687 // special code for the top label
688 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
689 || layout->labeltype == LABEL_BIBLIO
690 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
691 && isFirstInSequence(pit, pars)
692 && !par.getLabelstring().empty())
695 labelfont_metrics.maxHeight()
696 * layout->spacing.getValue()
697 * text_->spacing(buffer, par)
698 + (layout->topsep + layout->labelbottomsep) * dh);
701 // Add the layout spaces, for example before and after
702 // a section, or between the items of a itemize or enumerate
705 pit_type prev = depthHook(pit, pars, par.getDepth());
707 && pars[prev].layout() == layout
708 && pars[prev].getDepth() == par.getDepth()
709 && pars[prev].getLabelWidthString() == par.getLabelWidthString())
711 layoutasc = layout->itemsep * dh;
712 } else if (pit != 0 || row.pos() != 0) {
713 if (layout->topsep > 0)
714 layoutasc = layout->topsep * dh;
717 prev = outerHook(pit, pars);
718 if (prev != pit_type(pars.size())) {
719 maxasc += int(pars[prev].layout()->parsep * dh);
720 } else if (pit != 0) {
721 if (pars[pit - 1].getDepth() != 0 ||
722 pars[pit - 1].layout() == layout) {
723 maxasc += int(layout->parsep * dh);
728 // is it a bottom line?
729 if (row.endpos() >= par.size()) {
730 // add the layout spaces, for example before and after
731 // a section, or between the items of a itemize or enumerate
733 pit_type nextpit = pit + 1;
734 if (nextpit != pit_type(pars.size())) {
739 if (pars[cpit].getDepth() > pars[nextpit].getDepth()) {
740 usual = pars[cpit].layout()->bottomsep * dh;
741 cpit = depthHook(cpit, pars, pars[nextpit].getDepth());
742 if (pars[cpit].layout() != pars[nextpit].layout()
743 || pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
745 unusual = pars[cpit].layout()->bottomsep * dh;
747 layoutdesc = max(unusual, usual);
748 } else if (pars[cpit].getDepth() == pars[nextpit].getDepth()) {
749 if (pars[cpit].layout() != pars[nextpit].layout()
750 || pars[nextpit].getLabelWidthString() != pars[cpit].getLabelWidthString())
751 layoutdesc = int(pars[cpit].layout()->bottomsep * dh);
756 // incalculate the layout spaces
757 maxasc += int(layoutasc * 2 / (2 + pars[pit].getDepth()));
758 maxdesc += int(layoutdesc * 2 / (2 + pars[pit].getDepth()));
760 // FIXME: the correct way is to do the following is to move the
761 // following code in another method specially tailored for the
762 // main LyXText. The following test is thus bogus.
763 // Top and bottom margin of the document (only at top-level)
765 if (pit == 0 && row.pos() == 0)
767 if (pit + 1 == pit_type(pars.size()) &&
768 row.endpos() == par.size())
772 row.ascent(maxasc + labeladdon);
773 row.descent(maxdesc);
777 // x is an absolute screen coord
778 // returns the column near the specified x-coordinate of the row
779 // x is set to the real beginning of this column
780 pos_type TextMetrics::getColumnNearX(pit_type const pit,
781 Row const & row, int & x, bool & boundary) const
783 Buffer const & buffer = *bv_->buffer();
785 /// For the main LyXText, it is possible that this pit is not
786 /// yet in the CoordCache when moving cursor up.
787 /// x Paragraph coordinate is always 0 for main text anyway.
788 int const xo = main_text_? 0 : bv_->coordCache().get(text_, pit).x_;
790 RowMetrics const r = computeRowMetrics(pit, row);
791 Paragraph const & par = text_->getPar(pit);
793 pos_type vc = row.pos();
794 pos_type end = row.endpos();
796 LyXLayout_ptr const & layout = par.layout();
798 bool left_side = false;
800 pos_type body_pos = par.beginOfBody();
803 double last_tmpx = tmpx;
806 (body_pos > end || !par.isLineSeparator(body_pos - 1)))
809 // check for empty row
815 frontend::FontMetrics const & fm
816 = theFontMetrics(text_->getLabelFont(buffer, par));
818 while (vc < end && tmpx <= x) {
819 c = text_->bidi.vis2log(vc);
821 if (body_pos > 0 && c == body_pos - 1) {
823 docstring const lsep = from_utf8(layout->labelsep);
824 tmpx += r.label_hfill + fm.width(lsep);
825 if (par.isLineSeparator(body_pos - 1))
826 tmpx -= text_->singleWidth(buffer, par, body_pos - 1);
829 if (par.hfillExpansion(row, c)) {
830 tmpx += text_->singleWidth(buffer, par, c);
834 tmpx += r.label_hfill;
835 } else if (par.isSeparator(c)) {
836 tmpx += text_->singleWidth(buffer, par, c);
840 tmpx += text_->singleWidth(buffer, par, c);
845 if ((tmpx + last_tmpx) / 2 > x) {
850 BOOST_ASSERT(vc <= end); // This shouldn't happen.
853 // This (rtl_support test) is not needed, but gives
854 // some speedup if rtl_support == false
855 bool const lastrow = lyxrc.rtl_support && row.endpos() == par.size();
857 // If lastrow is false, we don't need to compute
859 bool const rtl = lastrow ? text_->isRTL(buffer, par) : false;
861 ((rtl && left_side && vc == row.pos() && x < tmpx - 5) ||
862 (!rtl && !left_side && vc == end && x > tmpx + 5)))
864 else if (vc == row.pos()) {
865 c = text_->bidi.vis2log(vc);
866 if (text_->bidi.level(c) % 2 == 1)
869 c = text_->bidi.vis2log(vc - 1);
870 bool const rtl = (text_->bidi.level(c) % 2 == 1);
871 if (left_side == rtl) {
873 boundary = text_->bidi.isBoundary(buffer, par, c);
877 // I believe this code is not needed anymore (Jug 20050717)
879 // The following code is necessary because the cursor position past
880 // the last char in a row is logically equivalent to that before
881 // the first char in the next row. That's why insets causing row
882 // divisions -- Newline and display-style insets -- must be treated
883 // specially, so cursor up/down doesn't get stuck in an air gap -- MV
884 // Newline inset, air gap below:
885 if (row.pos() < end && c >= end && par.isNewline(end - 1)) {
886 if (text_->bidi.level(end -1) % 2 == 0)
887 tmpx -= text_->singleWidth(buffer, par, end - 1);
889 tmpx += text_->singleWidth(buffer, par, end - 1);
893 // Air gap above display inset:
894 if (row.pos() < end && c >= end && end < par.size()
895 && par.isInset(end) && par.getInset(end)->display()) {
898 // Air gap below display inset:
899 if (row.pos() < end && c >= end && par.isInset(end - 1)
900 && par.getInset(end - 1)->display()) {
906 pos_type const col = c - row.pos();
908 if (!c || end == par.size())
911 if (c==end && !par.isLineSeparator(c-1) && !par.isNewline(c-1)) {
916 return min(col, end - 1 - row.pos());
920 pos_type TextMetrics::x2pos(pit_type pit, int row, int x) const
922 ParagraphMetrics const & pm = parMetrics(pit);
923 BOOST_ASSERT(!pm.rows().empty());
924 BOOST_ASSERT(row < int(pm.rows().size()));
926 Row const & r = pm.rows()[row];
927 return r.pos() + getColumnNearX(pit, r, x, bound);
931 //int LyXText::pos2x(pit_type pit, pos_type pos) const
933 // ParagraphMetrics const & pm = parMetrics(pit);
934 // Row const & r = pm.rows()[row];
940 int defaultRowHeight()
942 return int(theFontMetrics(LyXFont(LyXFont::ALL_SANE)).maxHeight() * 1.2);