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.
22 #include "bufferparams.h"
23 #include "BufferView.h"
26 #include "funcrequest.h"
30 #include "lyxlength.h"
33 #include "lyxrow_funcs.h"
34 #include "metricsinfo.h"
35 #include "paragraph.h"
36 #include "paragraph_funcs.h"
37 #include "ParagraphParameters.h"
38 #include "rowpainter.h"
39 #include "text_funcs.h"
42 #include "WordLangTuple.h"
44 #include "frontends/font_metrics.h"
45 #include "frontends/LyXView.h"
47 #include "insets/insettext.h"
49 #include "support/lstrings.h"
50 #include "support/textutils.h"
52 using bv_funcs::number;
55 using lyx::word_location;
57 using lyx::support::contains;
58 using lyx::support::lowercase;
59 using lyx::support::uppercase;
66 /// top, right, bottom pixel margin
67 extern int const PAPER_MARGIN = 20;
68 /// margin for changebar
69 extern int const CHANGEBAR_MARGIN = 10;
71 extern int const LEFT_MARGIN = PAPER_MARGIN + CHANGEBAR_MARGIN;
75 int bibitemMaxWidth(BufferView *, LyXFont const &);
78 BufferView * LyXText::bv()
80 BOOST_ASSERT(bv_owner != 0);
85 BufferView * LyXText::bv() const
87 BOOST_ASSERT(bv_owner != 0);
92 void LyXText::updateRowPositions()
94 ParagraphList::iterator pit = ownerParagraphs().begin();
95 ParagraphList::iterator end = ownerParagraphs().end();
96 for (height = 0; pit != end; ++pit) {
98 height += pit->height;
103 int LyXText::workWidth() const
105 return inset_owner ? inset_owner->textWidth() : bv()->workWidth();
109 int LyXText::getRealCursorX() const
112 if (the_locking_inset && the_locking_inset->getLyXText(bv()) != this)
113 x = the_locking_inset->getLyXText(bv())->getRealCursorX();
118 #warning FIXME This function seems to belong outside of LyxText.
119 unsigned char LyXText::transformChar(unsigned char c, Paragraph const & par,
122 if (!Encodings::is_arabic(c))
123 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
124 return c + (0xb0 - '0');
128 unsigned char const prev_char = pos > 0 ? par.getChar(pos - 1) : ' ';
129 unsigned char next_char = ' ';
131 pos_type const par_size = par.size();
133 for (pos_type i = pos + 1; i < par_size; ++i) {
134 unsigned char const par_char = par.getChar(i);
135 if (!Encodings::IsComposeChar_arabic(par_char)) {
136 next_char = par_char;
141 if (Encodings::is_arabic(next_char)) {
142 if (Encodings::is_arabic(prev_char) &&
143 !Encodings::is_arabic_special(prev_char))
144 return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
146 return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
148 if (Encodings::is_arabic(prev_char) &&
149 !Encodings::is_arabic_special(prev_char))
150 return Encodings::TransformChar(c, Encodings::FORM_FINAL);
152 return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
156 // This is the comments that some of the warnings below refers to.
157 // There are some issues in this file and I don't think they are
158 // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that
159 // this is a problem that has been here almost from day one and that a
160 // larger userbase with different access patters triggers the bad
161 // behaviour. (segfaults.) What I think happen is: In several places
162 // we store the paragraph in the current cursor and then moves the
163 // cursor. This movement of the cursor will delete paragraph at the
164 // old position if it is now empty. This will make the temporary
165 // pointer to the old cursor paragraph invalid and dangerous to use.
166 // And is some cases this will trigger a segfault. I have marked some
167 // of the cases where this happens with a warning, but I am sure there
168 // are others in this file and in text2.C. There is also a note in
169 // Delete() that you should read. In Delete I store the paragraph->id
170 // instead of a pointer to the paragraph. I am pretty sure this faulty
171 // use of temporary pointers to paragraphs that might have gotten
172 // invalidated (through a cursor movement) before they are used, are
173 // the cause of the strange crashes we get reported often.
175 // It is very tiresom to change this code, especially when it is as
176 // hard to read as it is. Help to fix all the cases where this is done
177 // would be greately appreciated.
181 int LyXText::singleWidth(ParagraphList::iterator pit, pos_type pos) const
183 if (pos >= pit->size())
186 char const c = pit->getChar(pos);
187 LyXFont const & font = getFont(pit, pos);
188 return singleWidth(pit, pos, c, font);
192 int LyXText::singleWidth(ParagraphList::iterator pit,
193 pos_type pos, char c, LyXFont const & font) const
195 if (pos >= pit->size()) {
196 lyxerr << "in singleWidth(), pos: " << pos << endl;
202 // The most common case is handled first (Asger)
203 if (IsPrintable(c)) {
204 if (font.language()->RightToLeft()) {
205 if ((lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
206 lyxrc.font_norm_type == LyXRC::ISO_10646_1)
207 && font.language()->lang() == "arabic") {
208 if (Encodings::IsComposeChar_arabic(c))
211 c = transformChar(c, *pit, pos);
212 } else if (font.language()->lang() == "hebrew" &&
213 Encodings::IsComposeChar_hebrew(c))
216 return font_metrics::width(c, font);
219 if (c == Paragraph::META_INSET) {
220 InsetOld * tmpinset = pit->getInset(pos);
221 BOOST_ASSERT(tmpinset);
222 if (tmpinset->lyxCode() == InsetOld::HFILL_CODE) {
223 // Because of the representation as vertical lines
226 return tmpinset->width();
229 if (IsSeparatorChar(c))
231 return font_metrics::width(c, font);
235 lyx::pos_type LyXText::log2vis(lyx::pos_type pos) const
237 if (bidi_start == -1)
240 return log2vis_list[pos - bidi_start];
244 lyx::pos_type LyXText::vis2log(lyx::pos_type pos) const
246 if (bidi_start == -1)
249 return vis2log_list[pos - bidi_start];
253 lyx::pos_type LyXText::bidi_level(lyx::pos_type pos) const
255 if (bidi_start == -1)
258 return bidi_levels[pos - bidi_start];
262 bool LyXText::bidi_InRange(lyx::pos_type pos) const
264 return bidi_start == -1 ||
265 (bidi_start <= pos && pos <= bidi_end);
269 void LyXText::computeBidiTables(Paragraph const & par,
270 Buffer const & buf, Row & row) const
272 bidi_same_direction = true;
273 if (!lyxrc.rtl_support) {
278 InsetOld * inset = par.inInset();
279 if (inset && inset->owner() &&
280 inset->owner()->lyxCode() == InsetOld::ERT_CODE) {
285 bidi_start = row.pos();
286 bidi_end = lastPos(par, row);
288 if (bidi_start > bidi_end) {
293 if (bidi_end + 2 - bidi_start >
294 static_cast<pos_type>(log2vis_list.size())) {
296 (bidi_end + 2 - bidi_start < 500) ?
297 500 : 2 * (bidi_end + 2 - bidi_start);
298 log2vis_list.resize(new_size);
299 vis2log_list.resize(new_size);
300 bidi_levels.resize(new_size);
303 vis2log_list[bidi_end + 1 - bidi_start] = -1;
304 log2vis_list[bidi_end + 1 - bidi_start] = -1;
306 BufferParams const & bufparams = buf.params();
308 bool const rtl_par = par.isRightToLeftPar(bufparams);
312 pos_type const body_pos = par.beginningOfBody();
314 for (pos_type lpos = bidi_start; lpos <= bidi_end; ++lpos) {
315 bool is_space = par.isLineSeparator(lpos);
317 (is_space && lpos + 1 <= bidi_end &&
318 !par.isLineSeparator(lpos + 1) &&
319 !par.isNewline(lpos + 1))
321 LyXFont font = par.getFontSettings(bufparams, pos);
322 if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() &&
323 font.number() == LyXFont::ON &&
324 par.getFontSettings(bufparams, lpos - 1).number()
326 font = par.getFontSettings(bufparams, lpos);
331 bool new_rtl = font.isVisibleRightToLeft();
332 bool new_rtl0 = font.isRightToLeft();
335 if (lpos == body_pos - 1
336 && row.pos() < body_pos - 1
338 new_level = rtl_par ? 1 : 0;
342 new_level = new_rtl ? 1 : 2;
344 new_level = rtl_par ? 2 : 0;
346 if (is_space && new_level >= level) {
352 int new_level2 = new_level;
354 if (level == new_level && rtl0 != new_rtl0) {
356 log2vis_list[lpos - bidi_start] = rtl ? 1 : -1;
357 } else if (level < new_level) {
358 log2vis_list[lpos - bidi_start] = rtl ? -1 : 1;
359 if (new_level > rtl_par)
360 bidi_same_direction = false;
362 log2vis_list[lpos - bidi_start] = new_rtl ? -1 : 1;
365 bidi_levels[lpos - bidi_start] = new_level;
367 while (level > new_level2) {
368 pos_type old_lpos = stack[--level];
369 int delta = lpos - old_lpos - 1;
372 log2vis_list[lpos - bidi_start] += delta;
373 log2vis_list[old_lpos - bidi_start] += delta;
375 while (level < new_level)
376 stack[level++] = lpos;
380 pos_type const old_lpos = stack[--level];
381 int delta = bidi_end - old_lpos;
384 log2vis_list[old_lpos - bidi_start] += delta;
387 pos_type vpos = bidi_start - 1;
388 for (pos_type lpos = bidi_start;
389 lpos <= bidi_end; ++lpos) {
390 vpos += log2vis_list[lpos - bidi_start];
391 vis2log_list[vpos - bidi_start] = lpos;
392 log2vis_list[lpos - bidi_start] = vpos;
397 // This method requires a previous call to ComputeBidiTables()
398 bool LyXText::isBoundary(Buffer const & buf, Paragraph const & par,
401 if (!lyxrc.rtl_support || pos == 0)
404 if (!bidi_InRange(pos - 1)) {
405 /// This can happen if pos is the first char of a row.
406 /// Returning false in this case is incorrect!
410 bool const rtl = bidi_level(pos - 1) % 2;
411 bool const rtl2 = bidi_InRange(pos)
412 ? bidi_level(pos) % 2
413 : par.isRightToLeftPar(buf.params());
418 bool LyXText::isBoundary(Buffer const & buf, Paragraph const & par,
419 pos_type pos, LyXFont const & font) const
421 if (!lyxrc.rtl_support)
422 return false; // This is just for speedup
424 bool const rtl = font.isVisibleRightToLeft();
425 bool const rtl2 = bidi_InRange(pos)
426 ? bidi_level(pos) % 2
427 : par.isRightToLeftPar(buf.params());
432 int LyXText::leftMargin(ParagraphList::iterator pit, Row const & row) const
434 LyXTextClass const & tclass =
435 bv()->buffer()->params().getLyXTextClass();
436 LyXLayout_ptr const & layout = pit->layout();
438 string parindent = layout->parindent;
442 x += font_metrics::signedWidth(tclass.leftmargin(), tclass.defaultfont());
444 // this is the way, LyX handles the LaTeX-Environments.
445 // I have had this idea very late, so it seems to be a
446 // later added hack and this is true
447 if (!pit->getDepth()) {
448 if (pit->layout() == tclass.defaultLayout()) {
449 // find the previous same level paragraph
450 if (pit != ownerParagraphs().begin()) {
451 ParagraphList::iterator newpit =
452 depthHook(pit, ownerParagraphs(),
455 newpit->layout()->nextnoindent)
460 // find the next level paragraph
462 ParagraphList::iterator newpar = outerHook(pit,
465 // make a corresponding row. Needed to call leftMargin()
467 // check wether it is a sufficent paragraph
468 if (newpar != ownerParagraphs().end() &&
469 newpar->layout()->isEnvironment()) {
470 x = leftMargin(newpar, Row(newpar->size()));
473 if (newpar != ownerParagraphs().end() &&
474 pit->layout() == tclass.defaultLayout()) {
475 if (newpar->params().noindent())
478 parindent = newpar->layout()->parindent;
484 LyXFont const labelfont = getLabelFont(pit);
485 switch (layout->margintype) {
487 if (!layout->leftmargin.empty()) {
488 x += font_metrics::signedWidth(layout->leftmargin,
489 tclass.defaultfont());
491 if (!pit->getLabelstring().empty()) {
492 x += font_metrics::signedWidth(layout->labelindent,
494 x += font_metrics::width(pit->getLabelstring(),
496 x += font_metrics::width(layout->labelsep, labelfont);
500 x += font_metrics::signedWidth(layout->labelindent, labelfont);
501 // The width of an empty par, even with manual label, should be 0
502 if (!pit->empty() && row.pos() >= pit->beginningOfBody()) {
503 if (!pit->getLabelWidthString().empty()) {
504 x += font_metrics::width(pit->getLabelWidthString(),
506 x += font_metrics::width(layout->labelsep, labelfont);
511 x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()) * 4
512 / (pit->getDepth() + 4);
514 case MARGIN_FIRST_DYNAMIC:
515 if (layout->labeltype == LABEL_MANUAL) {
516 if (row.pos() >= pit->beginningOfBody()) {
517 x += font_metrics::signedWidth(layout->leftmargin,
520 x += font_metrics::signedWidth(layout->labelindent,
524 // Special case to fix problems with
526 || (layout->labeltype == LABEL_STATIC
527 && layout->latextype == LATEX_ENVIRONMENT
528 && !isFirstInSequence(pit, ownerParagraphs()))) {
529 x += font_metrics::signedWidth(layout->leftmargin,
531 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
532 && layout->labeltype != LABEL_BIBLIO
533 && layout->labeltype !=
534 LABEL_CENTERED_TOP_ENVIRONMENT) {
535 x += font_metrics::signedWidth(layout->labelindent,
537 x += font_metrics::width(layout->labelsep, labelfont);
538 x += font_metrics::width(pit->getLabelstring(),
543 case MARGIN_RIGHT_ADDRESS_BOX:
545 // ok, a terrible hack. The left margin depends on the widest
546 // row in this paragraph.
547 RowList::iterator rit = pit->rows.begin();
548 RowList::iterator end = pit->rows.end();
549 int minfill = rit->fill();
550 for ( ; rit != end; ++rit)
551 if (rit->fill() < minfill)
552 minfill = rit->fill();
554 x += font_metrics::signedWidth(layout->leftmargin,
555 tclass.defaultfont());
561 if (workWidth() > 0 && !pit->params().leftIndent().zero()) {
562 LyXLength const len = pit->params().leftIndent();
563 int const tw = inset_owner ?
564 inset_owner->latexTextWidth(bv()) : workWidth();
565 x += len.inPixels(tw);
570 if (pit->params().align() == LYX_ALIGN_LAYOUT)
571 align = layout->align;
573 align = pit->params().align();
575 // set the correct parindent
576 if (row.pos() == 0) {
577 if ((layout->labeltype == LABEL_NO_LABEL
578 || layout->labeltype == LABEL_TOP_ENVIRONMENT
579 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
580 || (layout->labeltype == LABEL_STATIC
581 && layout->latextype == LATEX_ENVIRONMENT
582 && !isFirstInSequence(pit, ownerParagraphs())))
583 && align == LYX_ALIGN_BLOCK
584 && !pit->params().noindent()
585 // in tabulars and ert paragraphs are never indented!
586 && (!pit->inInset() || !pit->inInset()->owner() ||
587 (pit->inInset()->owner()->lyxCode() != InsetOld::TABULAR_CODE &&
588 pit->inInset()->owner()->lyxCode() != InsetOld::ERT_CODE))
589 && (pit->layout() != tclass.defaultLayout() ||
590 bv()->buffer()->params().paragraph_separation ==
591 BufferParams::PARSEP_INDENT)) {
592 x += font_metrics::signedWidth(parindent,
593 tclass.defaultfont());
594 } else if (layout->labeltype == LABEL_BIBLIO) {
595 // ale970405 Right width for bibitems
596 x += bibitemMaxWidth(bv(), tclass.defaultfont());
604 int LyXText::rightMargin(Paragraph const & par,
605 Buffer const & buf, Row const &) const
607 LyXTextClass const & tclass = buf.params().getLyXTextClass();
608 LyXLayout_ptr const & layout = par.layout();
611 + font_metrics::signedWidth(tclass.rightmargin(),
612 tclass.defaultfont())
613 + font_metrics::signedWidth(layout->rightmargin,
614 tclass.defaultfont())
615 * 4 / (par.getDepth() + 4);
619 int LyXText::labelEnd(ParagraphList::iterator pit, Row const & row) const
621 if (pit->layout()->margintype == MARGIN_MANUAL) {
623 tmprow.pos(pit->size());
624 // return the beginning of the body
625 return leftMargin(pit, tmprow);
628 // LabelEnd is only needed if the layout
629 // fills a flushleft label.
636 // this needs special handling - only newlines count as a break point
637 pos_type addressBreakPoint(pos_type i, Paragraph const & par)
639 for (; i < par.size(); ++i)
640 if (par.isNewline(i))
649 pos_type LyXText::rowBreakPoint(ParagraphList::iterator pit,
650 Row const & row) const
652 // maximum pixel width of a row.
653 int width = workWidth() - rightMargin(*pit, *bv()->buffer(), row);
655 // inset->textWidth() returns -1 via workWidth(),
660 LyXLayout_ptr const & layout = pit->layout();
662 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX)
663 return addressBreakPoint(row.pos(), *pit);
665 pos_type const pos = row.pos();
666 pos_type const body_pos = pit->beginningOfBody();
667 pos_type const last = pit->size();
668 pos_type point = last;
673 // Now we iterate through until we reach the right margin
674 // or the end of the par, then choose the possible break
677 int const left = leftMargin(pit, row);
680 // pixel width since last breakpoint
685 // We re-use the font resolution for the entire font span when possible
686 LyXFont font = getFont(pit, i);
687 lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
689 for (; i < last; ++i) {
690 if (pit->isNewline(i)) {
696 InsetOld * in = pit->getInset(i + 1);
697 if (in && in->display()) {
702 in = pit->getInset(i);
703 if (in && in->display()) {
709 char const c = pit->getChar(i);
710 if (i > endPosOfFontSpan) {
711 font = getFont(pit, i);
712 endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
717 // add the auto-hfill from label end to the body
718 if (body_pos && i == body_pos) {
719 thiswidth = font_metrics::width(layout->labelsep, getLabelFont(pit));
720 if (pit->isLineSeparator(i - 1))
721 thiswidth -= singleWidth(pit, i - 1);
722 int left_margin = labelEnd(pit, row);
723 if (thiswidth + x < left_margin)
724 thiswidth = left_margin - x;
725 thiswidth += singleWidth(pit, i, c, font);
727 thiswidth = singleWidth(pit, i, c, font);
731 chunkwidth += thiswidth;
733 InsetOld * in = pit->getInset(i);
735 // break before a character that will fall off
736 // the right of the row
738 // if no break before, break here
739 if (point == last || chunkwidth >= width - left) {
747 if (!in || in->isChar()) {
748 // some insets are line separators too
749 if (pit->isLineSeparator(i)) {
756 if (point == last && x >= width) {
757 // didn't find one, break at the point we reached the edge
759 } else if (i == last && x < width) {
760 // found one, but we fell off the end of the par, so prefer
765 // manual labels cannot be broken in LaTeX. But we
766 // want to make our on-screen rendering of footnotes
768 if (body_pos && point < body_pos)
769 point = body_pos - 1;
775 // returns the minimum space a row needs on the screen in pixel
776 int LyXText::fill(ParagraphList::iterator pit, Row & row, int paper_width) const
782 // get the pure distance
783 pos_type const last = lastPos(*pit, row);
785 LyXLayout_ptr const & layout = pit->layout();
787 // special handling of the right address boxes
788 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
789 int const tmpfill = row.fill();
790 row.fill(0); // the minfill in MarginLeft()
791 w = leftMargin(pit, row);
794 w = leftMargin(pit, row);
796 pos_type const body_pos = pit->beginningOfBody();
797 pos_type i = row.pos();
799 if (! pit->empty() && i <= last) {
800 // We re-use the font resolution for the entire span when possible
801 LyXFont font = getFont(pit, i);
802 lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
804 if (body_pos > 0 && i == body_pos) {
805 w += font_metrics::width(layout->labelsep, getLabelFont(pit));
806 if (pit->isLineSeparator(i - 1))
807 w -= singleWidth(pit, i - 1);
808 int left_margin = labelEnd(pit, row);
812 char const c = pit->getChar(i);
813 if (IsPrintable(c) && i > endPosOfFontSpan) {
814 // We need to get the next font
815 font = getFont(pit, i);
816 endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
818 w += singleWidth(pit, i, c, font);
822 if (body_pos > 0 && body_pos > last) {
823 w += font_metrics::width(layout->labelsep, getLabelFont(pit));
824 if (last >= 0 && pit->isLineSeparator(last))
825 w -= singleWidth(pit, last);
826 int const left_margin = labelEnd(pit, row);
831 int const fill = paper_width - w - rightMargin(*pit, *bv()->buffer(), row);
833 // If this case happens, it means that our calculation
834 // of the widths of the chars when we do rowBreakPoint()
835 // went wrong for some reason. Typically in list bodies.
836 // Things just about hobble on anyway, though you'll end
837 // up with a "fill_separator" less than zero, which corresponds
838 // to inter-word spacing being too small. Hopefully this problem
839 // will die when the label hacks die.
840 if (lyxerr.debugging() && fill < 0) {
841 lyxerr[Debug::GUI] << "Eek, fill() was < 0: " << fill
842 << " w " << w << " paper_width " << paper_width
843 << " right margin " << rightMargin(*pit, *bv()->buffer(), row) << endl;
849 // returns the minimum space a manual label needs on the screen in pixel
850 int LyXText::labelFill(ParagraphList::iterator pit, Row const & row) const
852 pos_type last = pit->beginningOfBody();
854 BOOST_ASSERT(last > 0);
856 // -1 because a label ends either with a space that is in the label,
857 // or with the beginning of a footnote that is outside the label.
860 // a separator at this end does not count
861 if (pit->isLineSeparator(last))
865 pos_type i = row.pos();
867 w += singleWidth(pit, i);
872 string const & labwidstr = pit->params().labelWidthString();
873 if (!labwidstr.empty()) {
874 LyXFont const labfont = getLabelFont(pit);
875 int const labwidth = font_metrics::width(labwidstr, labfont);
876 fill = max(labwidth - w, 0);
883 LColor_color LyXText::backgroundColor() const
886 return inset_owner->backgroundColor();
888 return LColor::background;
892 void LyXText::setHeightOfRow(ParagraphList::iterator pit, Row & row)
894 // get the maximum ascent and the maximum descent
895 double layoutasc = 0;
896 double layoutdesc = 0;
899 // ok, let us initialize the maxasc and maxdesc value.
900 // Only the fontsize count. The other properties
901 // are taken from the layoutfont. Nicer on the screen :)
902 LyXLayout_ptr const & layout = pit->layout();
904 // as max get the first character of this row then it can increase but not
905 // decrease the height. Just some point to start with so we don't have to
906 // do the assignment below too often.
907 LyXFont font = getFont(pit, row.pos());
908 LyXFont::FONT_SIZE const tmpsize = font.size();
909 font = getLayoutFont(pit);
910 LyXFont::FONT_SIZE const size = font.size();
911 font.setSize(tmpsize);
913 LyXFont labelfont = getLabelFont(pit);
915 double spacing_val = 1.0;
916 if (!pit->params().spacing().isDefault())
917 spacing_val = pit->params().spacing().getValue();
919 spacing_val = bv()->buffer()->params().spacing().getValue();
920 //lyxerr << "spacing_val = " << spacing_val << endl;
922 int maxasc = int(font_metrics::maxAscent(font) *
923 layout->spacing.getValue() * spacing_val);
924 int maxdesc = int(font_metrics::maxDescent(font) *
925 layout->spacing.getValue() * spacing_val);
927 pos_type const pos_end = lastPos(*pit, row);
932 // We re-use the font resolution for the entire font span when possible
933 LyXFont font = getFont(pit, row.pos());
934 lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(row.pos());
937 Paragraph const & par = *pit;
939 // Check if any insets are larger
940 for (pos_type pos = row.pos(); pos <= pos_end; ++pos) {
941 // Manual inlined optimised version of common case of
942 // "maxwidth += singleWidth(pit, pos);"
943 char const c = par.getChar(pos);
945 if (IsPrintable(c)) {
946 if (pos > endPosOfFontSpan) {
947 // We need to get the next font
948 font = getFont(pit, pos);
949 endPosOfFontSpan = par.getEndPosOfFontSpan(pos);
951 if (! font.language()->RightToLeft()) {
952 maxwidth += font_metrics::width(c, font);
954 // Fall-back to normal case
955 maxwidth += singleWidth(pit, pos, c, font);
956 // And flush font cache
957 endPosOfFontSpan = 0;
960 // Special handling of insets - are any larger?
961 if (par.isInset(pos)) {
962 InsetOld const * tmpinset = par.getInset(pos);
964 maxwidth += tmpinset->width();
965 maxasc = max(maxasc, tmpinset->ascent());
966 maxdesc = max(maxdesc, tmpinset->descent());
969 // Fall-back to normal case
970 maxwidth += singleWidth(pit, pos, c, font);
971 // And flush font cache
972 endPosOfFontSpan = 0;
978 // Check if any custom fonts are larger (Asger)
979 // This is not completely correct, but we can live with the small,
980 // cosmetic error for now.
981 LyXFont::FONT_SIZE maxsize =
982 pit->highestFontInRange(row.pos(), pos_end, size);
983 if (maxsize > font.size()) {
984 font.setSize(maxsize);
985 maxasc = max(maxasc, font_metrics::maxAscent(font));
986 maxdesc = max(maxdesc, font_metrics::maxDescent(font));
989 // This is nicer with box insets:
993 row.ascent_of_text(maxasc);
997 BufferParams const & bufparams = bv()->buffer()->params();
998 // some parksips VERY EASY IMPLEMENTATION
999 if (bv()->buffer()->params().paragraph_separation ==
1000 BufferParams::PARSEP_SKIP)
1002 if (layout->isParagraph()
1003 && pit->getDepth() == 0
1004 && pit != ownerParagraphs().begin())
1006 maxasc += bufparams.getDefSkip().inPixels(*bv());
1007 } else if (pit != ownerParagraphs().begin() &&
1008 boost::prior(pit)->layout()->isParagraph() &&
1009 boost::prior(pit)->getDepth() == 0)
1011 // is it right to use defskip here too? (AS)
1012 maxasc += bufparams.getDefSkip().inPixels(*bv());
1017 if (pit == ownerParagraphs().begin() && !isInInset())
1018 maxasc += PAPER_MARGIN;
1020 // add the vertical spaces, that the user added
1021 maxasc += getLengthMarkerHeight(*bv(), pit->params().spaceTop());
1023 // do not forget the DTP-lines!
1024 // there height depends on the font of the nearest character
1025 if (pit->params().lineTop())
1027 maxasc += 2 * font_metrics::ascent('x', getFont(pit, 0));
1028 // and now the pagebreaks
1029 if (pit->params().pagebreakTop())
1030 maxasc += 3 * defaultRowHeight();
1032 if (pit->params().startOfAppendix())
1033 maxasc += 3 * defaultRowHeight();
1035 // This is special code for the chapter, since the label of this
1036 // layout is printed in an extra row
1037 if (layout->counter == "chapter" && bufparams.secnumdepth >= 0) {
1038 float spacing_val = 1.0;
1039 if (!pit->params().spacing().isDefault()) {
1040 spacing_val = pit->params().spacing().getValue();
1042 spacing_val = bufparams.spacing().getValue();
1045 labeladdon = int(font_metrics::maxDescent(labelfont) *
1046 layout->spacing.getValue() *
1048 + int(font_metrics::maxAscent(labelfont) *
1049 layout->spacing.getValue() *
1053 // special code for the top label
1054 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
1055 || layout->labeltype == LABEL_BIBLIO
1056 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1057 && isFirstInSequence(pit, ownerParagraphs())
1058 && !pit->getLabelstring().empty())
1060 float spacing_val = 1.0;
1061 if (!pit->params().spacing().isDefault()) {
1062 spacing_val = pit->params().spacing().getValue();
1064 spacing_val = bufparams.spacing().getValue();
1068 (font_metrics::maxAscent(labelfont) +
1069 font_metrics::maxDescent(labelfont)) *
1070 layout->spacing.getValue() *
1072 + layout->topsep * defaultRowHeight()
1073 + layout->labelbottomsep * defaultRowHeight());
1076 // And now the layout spaces, for example before and after
1077 // a section, or between the items of a itemize or enumerate
1080 if (!pit->params().pagebreakTop()) {
1081 ParagraphList::iterator prev =
1082 depthHook(pit, ownerParagraphs(),
1084 if (prev != pit && prev->layout() == layout &&
1085 prev->getDepth() == pit->getDepth() &&
1086 prev->getLabelWidthString() == pit->getLabelWidthString())
1088 layoutasc = (layout->itemsep * defaultRowHeight());
1089 // } else if (rit != firstRow()) {
1090 } else if (pit != ownerParagraphs().begin() || row.pos() != 0) {
1091 tmptop = layout->topsep;
1094 layoutasc = (tmptop * defaultRowHeight());
1095 } else if (pit->params().lineTop()) {
1096 tmptop = layout->topsep;
1099 layoutasc = (tmptop * defaultRowHeight());
1102 prev = outerHook(pit, ownerParagraphs());
1103 if (prev != ownerParagraphs().end()) {
1104 maxasc += int(prev->layout()->parsep * defaultRowHeight());
1105 } else if (pit != ownerParagraphs().begin()) {
1106 ParagraphList::iterator prior_pit = boost::prior(pit);
1107 if (prior_pit->getDepth() != 0 ||
1108 prior_pit->layout() == layout) {
1109 maxasc += int(layout->parsep * defaultRowHeight());
1115 // is it a bottom line?
1116 if (row.end() == pit->size()) {
1117 // the bottom margin
1118 ParagraphList::iterator nextpit = boost::next(pit);
1119 if (nextpit == ownerParagraphs().end() && !isInInset())
1120 maxdesc += PAPER_MARGIN;
1122 // add the vertical spaces, that the user added
1123 maxdesc += getLengthMarkerHeight(*bv(), pit->params().spaceBottom());
1125 // do not forget the DTP-lines!
1126 // there height depends on the font of the nearest character
1127 if (pit->params().lineBottom())
1128 maxdesc += 2 * font_metrics::ascent('x',
1129 getFont(pit, max(pos_type(0), pit->size() - 1)));
1131 // and now the pagebreaks
1132 if (pit->params().pagebreakBottom())
1133 maxdesc += 3 * defaultRowHeight();
1135 // and now the layout spaces, for example before and after
1136 // a section, or between the items of a itemize or enumerate
1138 if (!pit->params().pagebreakBottom()
1139 && nextpit != ownerParagraphs().end()) {
1140 ParagraphList::iterator comparepit = pit;
1144 if (comparepit->getDepth() > nextpit->getDepth()) {
1145 usual = (comparepit->layout()->bottomsep * defaultRowHeight());
1146 comparepit = depthHook(comparepit, ownerParagraphs(), nextpit->getDepth());
1147 if (comparepit->layout()!= nextpit->layout()
1148 || nextpit->getLabelWidthString() !=
1149 comparepit->getLabelWidthString())
1151 unusual = (comparepit->layout()->bottomsep * defaultRowHeight());
1153 if (unusual > usual)
1154 layoutdesc = unusual;
1157 } else if (comparepit->getDepth() == nextpit->getDepth()) {
1159 if (comparepit->layout() != nextpit->layout()
1160 || nextpit->getLabelWidthString() !=
1161 comparepit->getLabelWidthString())
1162 layoutdesc = int(comparepit->layout()->bottomsep * defaultRowHeight());
1167 // incalculate the layout spaces
1168 maxasc += int(layoutasc * 2 / (2 + pit->getDepth()));
1169 maxdesc += int(layoutdesc * 2 / (2 + pit->getDepth()));
1171 row.height(maxasc + maxdesc + labeladdon);
1172 row.baseline(maxasc + labeladdon);
1173 row.top_of_text(row.baseline() - font_metrics::maxAscent(font));
1175 row.width(maxwidth);
1177 width = max(0, workWidth());
1178 RowList::iterator rit = firstRow();
1179 RowList::iterator end = endRow();
1180 ParagraphList::iterator it = ownerParagraphs().begin();
1181 while (rit != end) {
1182 if (rit->width() > width)
1183 width = rit->width();
1190 void LyXText::breakParagraph(ParagraphList & paragraphs, char keep_layout)
1192 // allow only if at start or end, or all previous is new text
1193 if (cursor.pos() && cursor.pos() != cursorPar()->size()
1194 && cursorPar()->isChangeEdited(0, cursor.pos()))
1197 LyXTextClass const & tclass =
1198 bv()->buffer()->params().getLyXTextClass();
1199 LyXLayout_ptr const & layout = cursorPar()->layout();
1201 // this is only allowed, if the current paragraph is not empty or caption
1202 // and if it has not the keepempty flag active
1203 if (cursorPar()->empty() && !cursorPar()->allowEmpty()
1204 && layout->labeltype != LABEL_SENSITIVE)
1207 recUndo(cursor.par());
1209 // Always break behind a space
1211 // It is better to erase the space (Dekel)
1212 if (cursor.pos() < cursorPar()->size()
1213 && cursorPar()->isLineSeparator(cursor.pos()))
1214 cursorPar()->erase(cursor.pos());
1216 // break the paragraph
1220 keep_layout = layout->isEnvironment();
1222 // we need to set this before we insert the paragraph. IMO the
1223 // breakParagraph call should return a bool if it inserts the
1224 // paragraph before or behind and we should react on that one
1225 // but we can fix this in 1.3.0 (Jug 20020509)
1226 bool const isempty = (cursorPar()->allowEmpty() && cursorPar()->empty());
1227 ::breakParagraph(bv()->buffer()->params(), paragraphs, cursorPar(),
1228 cursor.pos(), keep_layout);
1230 #warning Trouble Point! (Lgb)
1231 // When ::breakParagraph is called from within an inset we must
1232 // ensure that the correct ParagraphList is used. Today that is not
1233 // the case and the Buffer::paragraphs is used. Not good. (Lgb)
1234 ParagraphList::iterator next_par = boost::next(cursorPar());
1236 // well this is the caption hack since one caption is really enough
1237 if (layout->labeltype == LABEL_SENSITIVE) {
1239 // set to standard-layout
1240 cursorPar()->applyLayout(tclass.defaultLayout());
1242 // set to standard-layout
1243 next_par->applyLayout(tclass.defaultLayout());
1246 // if the cursor is at the beginning of a row without prior newline,
1248 // This touches only the screen-update. Otherwise we would may have
1249 // an empty row on the screen
1250 if (cursor.pos() && cursorRow()->pos() == cursor.pos()
1251 && !cursorPar()->isNewline(cursor.pos() - 1))
1256 while (!next_par->empty() && next_par->isNewline(0))
1260 redoParagraph(cursorPar());
1261 redoParagraph(next_par);
1263 // This check is necessary. Otherwise the new empty paragraph will
1264 // be deleted automatically. And it is more friendly for the user!
1265 if (cursor.pos() || isempty)
1266 setCursor(next_par, 0);
1268 setCursor(cursorPar(), 0);
1272 // convenience function
1273 void LyXText::redoParagraph()
1276 redoParagraph(cursorPar());
1277 setCursorIntern(cursor.par(), cursor.pos());
1281 // insert a character, moves all the following breaks in the
1282 // same Paragraph one to the right and make a rebreak
1283 void LyXText::insertChar(char c)
1285 recordUndo(Undo::INSERT, this, cursor.par(), cursor.par());
1287 // When the free-spacing option is set for the current layout,
1288 // disable the double-space checking
1290 bool const freeSpacing = cursorPar()->layout()->free_spacing ||
1291 cursorPar()->isFreeSpacing();
1293 if (lyxrc.auto_number) {
1294 static string const number_operators = "+-/*";
1295 static string const number_unary_operators = "+-";
1296 static string const number_seperators = ".,:";
1298 if (current_font.number() == LyXFont::ON) {
1299 if (!IsDigit(c) && !contains(number_operators, c) &&
1300 !(contains(number_seperators, c) &&
1301 cursor.pos() >= 1 &&
1302 cursor.pos() < cursorPar()->size() &&
1303 getFont(cursorPar(), cursor.pos()).number() == LyXFont::ON &&
1304 getFont(cursorPar(), cursor.pos() - 1).number() == LyXFont::ON)
1306 number(bv()); // Set current_font.number to OFF
1307 } else if (IsDigit(c) &&
1308 real_current_font.isVisibleRightToLeft()) {
1309 number(bv()); // Set current_font.number to ON
1311 if (cursor.pos() > 0) {
1312 char const c = cursorPar()->getChar(cursor.pos() - 1);
1313 if (contains(number_unary_operators, c) &&
1314 (cursor.pos() == 1 ||
1315 cursorPar()->isSeparator(cursor.pos() - 2) ||
1316 cursorPar()->isNewline(cursor.pos() - 2))
1322 } else if (contains(number_seperators, c) &&
1323 cursor.pos() >= 2 &&
1326 cursor.pos() - 2).number() == LyXFont::ON) {
1337 // First check, if there will be two blanks together or a blank at
1338 // the beginning of a paragraph.
1339 // I decided to handle blanks like normal characters, the main
1340 // difference are the special checks when calculating the row.fill
1341 // (blank does not count at the end of a row) and the check here
1343 // The bug is triggered when we type in a description environment:
1344 // The current_font is not changed when we go from label to main text
1345 // and it should (along with realtmpfont) when we type the space.
1346 // CHECK There is a bug here! (Asger)
1348 // store the current font. This is because of the use of cursor
1349 // movements. The moving cursor would refresh the current font
1350 LyXFont realtmpfont = real_current_font;
1351 LyXFont rawtmpfont = current_font;
1353 if (!freeSpacing && IsLineSeparatorChar(c)) {
1354 if ((cursor.pos() > 0
1355 && cursorPar()->isLineSeparator(cursor.pos() - 1))
1356 || (cursor.pos() > 0
1357 && cursorPar()->isNewline(cursor.pos() - 1))
1358 || (cursor.pos() == 0)) {
1359 static bool sent_space_message = false;
1360 if (!sent_space_message) {
1361 if (cursor.pos() == 0)
1362 bv()->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1364 bv()->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1365 sent_space_message = true;
1372 // Here case LyXText::InsertInset already inserted the character
1373 if (c != Paragraph::META_INSET)
1374 cursorPar()->insertChar(cursor.pos(), c);
1376 setCharFont(cursorPar(), cursor.pos(), rawtmpfont);
1378 current_font = rawtmpfont;
1379 real_current_font = realtmpfont;
1380 redoParagraph(cursorPar());
1381 setCursor(cursor.par(), cursor.pos() + 1, false, cursor.boundary());
1387 void LyXText::charInserted()
1389 // Here we could call finishUndo for every 20 characters inserted.
1390 // This is from my experience how emacs does it. (Lgb)
1391 static unsigned int counter;
1401 void LyXText::prepareToPrint(ParagraphList::iterator pit,
1402 RowList::iterator const rit) const
1404 double w = rit->fill();
1405 double fill_hfill = 0;
1406 double fill_label_hfill = 0;
1407 double fill_separator = 0;
1411 pit->isRightToLeftPar(bv()->buffer()->params());
1413 x = workWidth() > 0 ? rightMargin(*pit, *bv()->buffer(), *rit) : 0;
1415 x = workWidth() > 0 ? leftMargin(pit, *rit) : 0;
1417 // is there a manual margin with a manual label
1418 LyXLayout_ptr const & layout = pit->layout();
1420 if (layout->margintype == MARGIN_MANUAL
1421 && layout->labeltype == LABEL_MANUAL) {
1422 /// We might have real hfills in the label part
1423 int nlh = numberOfLabelHfills(*pit, *rit);
1425 // A manual label par (e.g. List) has an auto-hfill
1426 // between the label text and the body of the
1428 // But we don't want to do this auto hfill if the par
1433 if (nlh && !pit->getLabelWidthString().empty()) {
1434 fill_label_hfill = labelFill(pit, *rit) / double(nlh);
1438 // are there any hfills in the row?
1439 int const nh = numberOfHfills(*pit, *rit);
1443 fill_hfill = w / nh;
1444 // we don't have to look at the alignment if it is ALIGN_LEFT and
1445 // if the row is already larger then the permitted width as then
1446 // we force the LEFT_ALIGN'edness!
1447 } else if (int(rit->width()) < workWidth()) {
1448 // is it block, flushleft or flushright?
1449 // set x how you need it
1451 if (pit->params().align() == LYX_ALIGN_LAYOUT) {
1452 align = layout->align;
1454 align = pit->params().align();
1456 InsetOld * inset = 0;
1457 // ERT insets should always be LEFT ALIGNED on screen
1458 inset = pit->inInset();
1459 if (inset && inset->owner() &&
1460 inset->owner()->lyxCode() == InsetOld::ERT_CODE)
1462 align = LYX_ALIGN_LEFT;
1465 // Display-style insets should always be on a centred row
1466 // The test on pit->size() is to catch zero-size pars, which
1467 // would trigger the assert in Paragraph::getInset().
1468 inset = pit->size() ? pit->getInset(rit->pos()) : 0;
1469 if (inset && inset->display()) {
1470 align = LYX_ALIGN_CENTER;
1474 case LYX_ALIGN_BLOCK:
1476 int const ns = numberOfSeparators(*pit, *rit);
1477 RowList::iterator next_row = boost::next(rit);
1478 bool disp_inset = false;
1479 if (next_row != pit->rows.end()) {
1480 InsetOld * in = pit->getInset(next_row->pos());
1482 disp_inset = in->display();
1484 // If we have separators, this is not the last row of a
1485 // par, does not end in newline, and is not row above a
1486 // display inset... then stretch it
1488 && next_row != pit->rows.end()
1489 && !pit->isNewline(next_row->pos() - 1)
1492 fill_separator = w / ns;
1493 } else if (is_rtl) {
1498 case LYX_ALIGN_RIGHT:
1501 case LYX_ALIGN_CENTER:
1507 computeBidiTables(*pit, *bv()->buffer(), *rit);
1509 pos_type body_pos = pit->beginningOfBody();
1510 pos_type last = lastPos(*pit, *rit);
1513 (body_pos - 1 > last ||
1514 !pit->isLineSeparator(body_pos - 1))) {
1515 x += font_metrics::width(layout->labelsep, getLabelFont(pit));
1516 if (body_pos - 1 <= last)
1517 x += fill_label_hfill;
1521 rit->fill_hfill(fill_hfill);
1522 rit->fill_label_hfill(fill_label_hfill);
1523 rit->fill_separator(fill_separator);
1528 // important for the screen
1531 // the cursor set functions have a special mechanism. When they
1532 // realize, that you left an empty paragraph, they will delete it.
1533 // They also delete the corresponding row
1535 void LyXText::cursorRightOneWord()
1537 ::cursorRightOneWord(*this, cursor, ownerParagraphs());
1538 setCursor(cursorPar(), cursor.pos());
1542 // Skip initial whitespace at end of word and move cursor to *start*
1543 // of prior word, not to end of next prior word.
1544 void LyXText::cursorLeftOneWord()
1546 LyXCursor tmpcursor = cursor;
1547 ::cursorLeftOneWord(*this, tmpcursor, ownerParagraphs());
1548 setCursor(getPar(tmpcursor), tmpcursor.pos());
1552 void LyXText::selectWord(word_location loc)
1554 LyXCursor from = cursor;
1555 LyXCursor to = cursor;
1556 ::getWord(*this, from, to, loc, ownerParagraphs());
1558 setCursor(from.par(), from.pos());
1561 selection.cursor = cursor;
1562 setCursor(to.par(), to.pos());
1567 // Select the word currently under the cursor when no
1568 // selection is currently set
1569 bool LyXText::selectWordWhenUnderCursor(word_location loc)
1571 if (!selection.set()) {
1573 return selection.set();
1579 void LyXText::acceptChange()
1581 if (!selection.set() && cursorPar()->size())
1584 if (selection.start.par() == selection.end.par()) {
1585 LyXCursor & startc = selection.start;
1586 LyXCursor & endc = selection.end;
1587 recordUndo(Undo::INSERT, this, startc.par());
1588 getPar(startc)->acceptChange(startc.pos(), endc.pos());
1591 redoParagraph(getPar(startc));
1592 setCursorIntern(startc.par(), 0);
1594 #warning handle multi par selection
1598 void LyXText::rejectChange()
1600 if (!selection.set() && cursorPar()->size())
1603 if (selection.start.par() == selection.end.par()) {
1604 LyXCursor & startc = selection.start;
1605 LyXCursor & endc = selection.end;
1606 recordUndo(Undo::INSERT, this, startc.par());
1607 getPar(startc)->rejectChange(startc.pos(), endc.pos());
1610 redoParagraph(getPar(startc));
1611 setCursorIntern(startc.par(), 0);
1613 #warning handle multi par selection
1617 // This function is only used by the spellchecker for NextWord().
1618 // It doesn't handle LYX_ACCENTs and probably never will.
1619 WordLangTuple const LyXText::selectNextWordToSpellcheck(float & value)
1621 if (the_locking_inset) {
1622 WordLangTuple word = the_locking_inset->selectNextWordToSpellcheck(bv(), value);
1623 if (!word.word().empty()) {
1624 value += float(cursor.y());
1625 value /= float(height);
1628 // we have to go on checking so move cursor to the next char
1629 if (cursor.pos() == cursorPar()->size()) {
1630 if (cursor.par() + 1 == int(ownerParagraphs().size()))
1632 cursor.par(cursor.par() + 1);
1635 cursor.pos(cursor.pos() + 1);
1637 int const tmppar = cursor.par();
1639 // If this is not the very first word, skip rest of
1640 // current word because we are probably in the middle
1641 // of a word if there is text here.
1642 if (cursor.pos() || cursor.par() != 0) {
1643 while (cursor.pos() < cursorPar()->size()
1644 && cursorPar()->isLetter(cursor.pos()))
1645 cursor.pos(cursor.pos() + 1);
1648 // Now, skip until we have real text (will jump paragraphs)
1650 ParagraphList::iterator cpit = cursorPar();
1651 pos_type const cpos = cursor.pos();
1653 if (cpos == cpit->size()) {
1654 if (cursor.par() + 1 != int(ownerParagraphs().size())) {
1655 cursor.par(cursor.par() + 1);
1662 bool const is_good_inset = cpit->isInset(cpos)
1663 && cpit->getInset(cpos)->allowSpellcheck();
1665 if (!isDeletedText(*cpit, cpos)
1666 && (is_good_inset || cpit->isLetter(cpos)))
1669 cursor.pos(cpos + 1);
1672 // now check if we hit an inset so it has to be a inset containing text!
1673 if (cursor.pos() < cursorPar()->size() &&
1674 cursorPar()->isInset(cursor.pos())) {
1676 FuncRequest cmd(bv(), LFUN_INSET_EDIT, "left");
1677 cursorPar()->getInset(cursor.pos())->dispatch(cmd);
1678 // now call us again to do the above trick
1679 // but obviously we have to start from down below ;)
1680 return bv()->text->selectNextWordToSpellcheck(value);
1683 // Update the value if we changed paragraphs
1684 if (cursor.par() != tmppar) {
1685 setCursor(cursor.par(), cursor.pos());
1686 value = float(cursor.y())/float(height);
1689 // Start the selection from here
1690 selection.cursor = cursor;
1692 string lang_code = getFont(cursorPar(), cursor.pos()).language()->code();
1693 // and find the end of the word (insets like optional hyphens
1694 // and ligature break are part of a word)
1695 while (cursor.pos() < cursorPar()->size()
1696 && cursorPar()->isLetter(cursor.pos())
1697 && !isDeletedText(*cursorPar(), cursor.pos()))
1698 cursor.pos(cursor.pos() + 1);
1700 // Finally, we copy the word to a string and return it
1702 if (selection.cursor.pos() < cursor.pos()) {
1704 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
1705 if (!cursorPar()->isInset(i))
1706 str += cursorPar()->getChar(i);
1709 return WordLangTuple(str, lang_code);
1713 // This one is also only for the spellchecker
1714 void LyXText::selectSelectedWord()
1716 if (the_locking_inset) {
1717 the_locking_inset->selectSelectedWord(bv());
1720 // move cursor to the beginning
1721 setCursor(selection.cursor.par(), selection.cursor.pos());
1723 // set the sel cursor
1724 selection.cursor = cursor;
1726 // now find the end of the word
1727 while (cursor.pos() < cursorPar()->size()
1728 && cursorPar()->isLetter(cursor.pos()))
1729 cursor.pos(cursor.pos() + 1);
1731 setCursor(cursorPar(), cursor.pos());
1733 // finally set the selection
1738 // Delete from cursor up to the end of the current or next word.
1739 void LyXText::deleteWordForward()
1741 if (cursorPar()->empty())
1744 LyXCursor tmpcursor = cursor;
1745 selection.set(true); // to avoid deletion
1746 cursorRightOneWord();
1747 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1748 selection.cursor = cursor;
1752 // Great, CutSelection() gets rid of multiple spaces.
1753 cutSelection(true, false);
1758 // Delete from cursor to start of current or prior word.
1759 void LyXText::deleteWordBackward()
1761 if (cursorPar()->empty())
1764 LyXCursor tmpcursor = cursor;
1765 selection.set(true); // to avoid deletion
1766 cursorLeftOneWord();
1767 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1768 selection.cursor = cursor;
1771 cutSelection(true, false);
1776 // Kill to end of line.
1777 void LyXText::deleteLineForward()
1779 if (cursorPar()->empty())
1780 // Paragraph is empty, so we just go to the right
1783 LyXCursor tmpcursor = cursor;
1784 // We can't store the row over a regular setCursor
1785 // so we set it to 0 and reset it afterwards.
1786 selection.set(true); // to avoid deletion
1788 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1789 selection.cursor = cursor;
1792 // What is this test for ??? (JMarc)
1793 if (!selection.set()) {
1794 deleteWordForward();
1796 cutSelection(true, false);
1802 void LyXText::changeCase(LyXText::TextCase action)
1807 if (selection.set()) {
1808 from = selection.start;
1812 ::getWord(*this, from, to, lyx::PARTIAL_WORD, ownerParagraphs());
1813 setCursor(to.par(), to.pos() + 1);
1816 recordUndo(Undo::ATOMIC, this, from.par(), to.par());
1818 pos_type pos = from.pos();
1819 int par = from.par();
1821 while (par != int(ownerParagraphs().size()) &&
1822 (pos != to.pos() || par != to.par())) {
1823 ParagraphList::iterator pit = getPar(par);
1824 if (pos == pit->size()) {
1829 unsigned char c = pit->getChar(pos);
1830 if (c != Paragraph::META_INSET) {
1832 case text_lowercase:
1835 case text_capitalization:
1837 action = text_lowercase;
1839 case text_uppercase:
1845 pit->setChar(pos, c);
1851 void LyXText::Delete()
1853 // this is a very easy implementation
1855 LyXCursor old_cursor = cursor;
1856 int const old_cur_par_id = cursorPar()->id();
1857 int const old_cur_par_prev_id =
1858 old_cursor.par() ? getPar(old_cursor.par() - 1)->id() : -1;
1860 // just move to the right
1863 // CHECK Look at the comment here.
1864 // This check is not very good...
1865 // The cursorRightIntern calls DeleteEmptyParagraphMechanism
1866 // and that can very well delete the par or par->previous in
1867 // old_cursor. Will a solution where we compare paragraph id's
1869 int iid = cursor.par() ? getPar(cursor.par() - 1)->id() : -1;
1870 if (iid == old_cur_par_prev_id && cursorPar()->id() != old_cur_par_id) {
1871 // delete-empty-paragraph-mechanism has done it
1875 // if you had success make a backspace
1876 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
1877 recordUndo(Undo::DELETE, this, old_cursor.par());
1883 void LyXText::backspace()
1885 // Get the font that is used to calculate the baselineskip
1886 ParagraphList::iterator pit = cursorPar();
1887 pos_type lastpos = pit->size();
1889 if (cursor.pos() == 0) {
1890 // The cursor is at the beginning of a paragraph,
1891 // so the the backspace will collapse two paragraphs into one.
1893 // but it's not allowed unless it's new
1894 if (pit->isChangeEdited(0, pit->size()))
1897 // we may paste some paragraphs
1899 // is it an empty paragraph?
1901 if (lastpos == 0 || (lastpos == 1 && pit->isSeparator(0))) {
1902 // This is an empty paragraph and we delete it just
1903 // by moving the cursor one step
1904 // left and let the DeleteEmptyParagraphMechanism
1905 // handle the actual deletion of the paragraph.
1908 ParagraphList::iterator tmppit = getPar(cursor.par() - 1);
1909 if (cursorPar()->layout() == tmppit->layout()
1910 && cursorPar()->getAlign() == tmppit->getAlign()) {
1911 // Inherit bottom DTD from the paragraph below.
1912 // (the one we are deleting)
1913 tmppit->params().lineBottom(cursorPar()->params().lineBottom());
1914 tmppit->params().spaceBottom(cursorPar()->params().spaceBottom());
1915 tmppit->params().pagebreakBottom(cursorPar()->params().pagebreakBottom());
1920 // the layout things can change the height of a row !
1926 if (cursor.par() != 0)
1927 recordUndo(Undo::DELETE, this, cursor.par() - 1, cursor.par());
1929 ParagraphList::iterator tmppit = cursorPar();
1930 // We used to do cursorLeftIntern() here, but it is
1931 // not a good idea since it triggers the auto-delete
1932 // mechanism. So we do a cursorLeftIntern()-lite,
1933 // without the dreaded mechanism. (JMarc)
1934 if (cursor.par() != 0) {
1935 // steps into the above paragraph.
1936 setCursorIntern(cursor.par() - 1,
1937 getPar(cursor.par() - 1)->size(),
1941 // Pasting is not allowed, if the paragraphs have different
1942 // layout. I think it is a real bug of all other
1943 // word processors to allow it. It confuses the user.
1944 // Correction: Pasting is always allowed with standard-layout
1945 Buffer & buf = *bv()->buffer();
1946 BufferParams const & bufparams = buf.params();
1947 LyXTextClass const & tclass = bufparams.getLyXTextClass();
1949 if (cursorPar() != tmppit
1950 && (cursorPar()->layout() == tmppit->layout()
1951 || tmppit->layout() == tclass.defaultLayout())
1952 && cursorPar()->getAlign() == tmppit->getAlign()) {
1953 mergeParagraph(bufparams,
1954 buf.paragraphs(), cursorPar());
1956 if (cursor.pos() && cursorPar()->isSeparator(cursor.pos() - 1))
1957 cursor.pos(cursor.pos() - 1);
1959 // the row may have changed, block, hfills etc.
1961 setCursor(cursor.par(), cursor.pos(), false);
1964 // this is the code for a normal backspace, not pasting
1966 recordUndo(Undo::DELETE, this, cursor.par());
1967 // We used to do cursorLeftIntern() here, but it is
1968 // not a good idea since it triggers the auto-delete
1969 // mechanism. So we do a cursorLeftIntern()-lite,
1970 // without the dreaded mechanism. (JMarc)
1971 setCursorIntern(cursor.par(), cursor.pos() - 1,
1972 false, cursor.boundary());
1973 cursorPar()->erase(cursor.pos());
1976 lastpos = cursorPar()->size();
1977 if (cursor.pos() == lastpos)
1981 setCursor(cursor.par(), cursor.pos(), false, !cursor.boundary());
1985 ParagraphList::iterator LyXText::cursorPar() const
1987 return getPar(cursor.par());
1991 ParagraphList::iterator LyXText::getPar(LyXCursor const & cur) const
1993 return getPar(cur.par());
1997 ParagraphList::iterator LyXText::getPar(int par) const
1999 BOOST_ASSERT(par >= 0);
2000 BOOST_ASSERT(par < int(ownerParagraphs().size()));
2001 ParagraphList::iterator pit = ownerParagraphs().begin();
2002 std::advance(pit, par);
2008 RowList::iterator LyXText::cursorRow() const
2010 return getRow(*cursorPar(), cursor.pos());
2014 RowList::iterator LyXText::getRow(LyXCursor const & cur) const
2016 return getRow(*getPar(cur), cur.pos());
2020 RowList::iterator LyXText::getRow(Paragraph & par, pos_type pos) const
2022 RowList::iterator rit = boost::prior(par.rows.end());
2023 RowList::iterator const begin = par.rows.begin();
2025 while (rit != begin && rit->pos() > pos)
2033 LyXText::getRowNearY(int y, ParagraphList::iterator & pit) const
2035 //lyxerr << "getRowNearY: y " << y << endl;
2037 pit = boost::prior(ownerParagraphs().end());
2039 RowList::iterator rit = lastRow();
2040 RowList::iterator rbegin = firstRow();
2042 while (rit != rbegin && int(pit->y + rit->y_offset()) > y)
2043 previousRow(pit, rit);
2049 int LyXText::getDepth() const
2051 return cursorPar()->getDepth();
2055 RowList::iterator LyXText::firstRow() const
2057 return ownerParagraphs().front().rows.begin();
2061 RowList::iterator LyXText::lastRow() const
2063 return boost::prior(endRow());
2067 RowList::iterator LyXText::endRow() const
2069 return ownerParagraphs().back().rows.end();
2073 void LyXText::nextRow(ParagraphList::iterator & pit,
2074 RowList::iterator & rit) const
2077 if (rit == pit->rows.end()) {
2079 if (pit == ownerParagraphs().end())
2082 rit = pit->rows.begin();
2087 void LyXText::previousRow(ParagraphList::iterator & pit,
2088 RowList::iterator & rit) const
2090 if (rit != pit->rows.begin())
2093 BOOST_ASSERT(pit != ownerParagraphs().begin());
2095 rit = boost::prior(pit->rows.end());
2100 string LyXText::selectionAsString(Buffer const & buffer, bool label) const
2102 if (!selection.set())
2105 // should be const ...
2106 ParagraphList::iterator startpit = getPar(selection.start);
2107 ParagraphList::iterator endpit = getPar(selection.end);
2108 size_t const startpos = selection.start.pos();
2109 size_t const endpos = selection.end.pos();
2111 if (startpit == endpit)
2112 return startpit->asString(buffer, startpos, endpos, label);
2114 // First paragraph in selection
2116 startpit->asString(buffer, startpos, startpit->size(), label) + "\n\n";
2118 // The paragraphs in between (if any)
2119 ParagraphList::iterator pit = startpit;
2120 for (++pit; pit != endpit; ++pit)
2121 result += pit->asString(buffer, 0, pit->size(), label) + "\n\n";
2123 // Last paragraph in selection
2124 result += endpit->asString(buffer, 0, endpos, label);
2130 int LyXText::parOffset(ParagraphList::iterator pit) const
2132 return std::distance(ownerParagraphs().begin(), pit);
2136 int LyXText::redoParagraphInternal(ParagraphList::iterator pit)
2138 // remove rows of paragraph, keep track of height changes
2139 height -= pit->height;
2143 InsetList::iterator ii = pit->insetlist.begin();
2144 InsetList::iterator iend = pit->insetlist.end();
2145 for (; ii != iend; ++ii) {
2147 MetricsInfo mi(bv(), getFont(pit, ii->pos), workWidth());
2148 ii->inset->metrics(mi, dim);
2151 // rebreak the paragraph
2153 int const ww = workWidth();
2156 for (pos_type z = 0; z < pit->size() + 1; ) {
2158 z = rowBreakPoint(pit, row) + 1;
2160 pit->rows.push_back(row);
2163 RowList::iterator rit = pit->rows.begin();
2164 RowList::iterator end = pit->rows.end();
2165 for (rit = pit->rows.begin(); rit != end; ++rit) {
2166 int const f = fill(pit, *rit, ww);
2167 int const w = ww - f;
2168 par_width = std::max(par_width, w);
2171 prepareToPrint(pit, rit);
2172 setHeightOfRow(pit, *rit);
2173 rit->y_offset(pit->height);
2174 pit->height += rit->height();
2176 height += pit->height;
2178 //lyxerr << "redoParagraph: " << pit->rows.size() << " rows\n";
2183 int LyXText::redoParagraphs(ParagraphList::iterator start,
2184 ParagraphList::iterator end)
2187 for ( ; start != end; ++start) {
2188 int par_width = redoParagraphInternal(start);
2189 pars_width = std::max(par_width, pars_width);
2191 updateRowPositions();
2196 void LyXText::redoParagraph(ParagraphList::iterator pit)
2198 redoParagraphInternal(pit);
2199 updateRowPositions();
2203 void LyXText::fullRebreak()
2205 redoParagraphs(ownerParagraphs().begin(), ownerParagraphs().end());
2207 selection.cursor = cursor;
2211 void LyXText::metrics(MetricsInfo & mi, Dimension & dim)
2213 //lyxerr << "LyXText::metrics: width: " << mi.base.textwidth
2214 // << " workWidth: " << workWidth() << endl;
2215 //BOOST_ASSERT(mi.base.textwidth);
2217 // rebuild row cache
2222 width = redoParagraphs(ownerParagraphs().begin(), ownerParagraphs().end());
2225 dim.asc = firstRow()->ascent_of_text();
2226 dim.des = height - dim.asc;
2227 dim.wid = std::max(mi.base.textwidth, int(width));