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 differenct 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)) {
695 char const c = pit->getChar(i);
696 if (i > endPosOfFontSpan) {
697 font = getFont(pit, i);
698 endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
703 // add the auto-hfill from label end to the body
704 if (body_pos && i == body_pos) {
705 thiswidth = font_metrics::width(layout->labelsep, getLabelFont(pit));
706 if (pit->isLineSeparator(i - 1))
707 thiswidth -= singleWidth(pit, i - 1);
708 int left_margin = labelEnd(pit, row);
709 if (thiswidth + x < left_margin)
710 thiswidth = left_margin - x;
711 thiswidth += singleWidth(pit, i, c, font);
713 thiswidth = singleWidth(pit, i, c, font);
717 chunkwidth += thiswidth;
719 InsetOld * in = pit->isInset(i) ? pit->getInset(i) : 0;
721 // break before a character that will fall off
722 // the right of the row
724 // if no break before, break here
725 if (point == last || chunkwidth >= width - left)
726 point = (pos < i) ? i - 1 : i;
730 if (!in || in->isChar()) {
731 // some insets are line separators too
732 if (pit->isLineSeparator(i)) {
739 if (point == last && x >= width) {
740 // didn't find one, break at the point we reached the edge
742 } else if (i == last && x < width) {
743 // found one, but we fell off the end of the par, so prefer
748 // manual labels cannot be broken in LaTeX. But we
749 // want to make our on-screen rendering of footnotes
751 if (body_pos && point < body_pos)
752 point = body_pos - 1;
758 // returns the minimum space a row needs on the screen in pixel
759 int LyXText::fill(ParagraphList::iterator pit, Row & row, int paper_width) const
765 // get the pure distance
766 pos_type const last = lastPos(*pit, row);
768 LyXLayout_ptr const & layout = pit->layout();
770 // special handling of the right address boxes
771 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
772 int const tmpfill = row.fill();
773 row.fill(0); // the minfill in MarginLeft()
774 w = leftMargin(pit, row);
777 w = leftMargin(pit, row);
779 pos_type const body_pos = pit->beginningOfBody();
780 pos_type i = row.pos();
782 if (! pit->empty() && i <= last) {
783 // We re-use the font resolution for the entire span when possible
784 LyXFont font = getFont(pit, i);
785 lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
787 if (body_pos > 0 && i == body_pos) {
788 w += font_metrics::width(layout->labelsep, getLabelFont(pit));
789 if (pit->isLineSeparator(i - 1))
790 w -= singleWidth(pit, i - 1);
791 int left_margin = labelEnd(pit, row);
795 char const c = pit->getChar(i);
796 if (IsPrintable(c) && i > endPosOfFontSpan) {
797 // We need to get the next font
798 font = getFont(pit, i);
799 endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
801 w += singleWidth(pit, i, c, font);
805 if (body_pos > 0 && body_pos > last) {
806 w += font_metrics::width(layout->labelsep, getLabelFont(pit));
807 if (last >= 0 && pit->isLineSeparator(last))
808 w -= singleWidth(pit, last);
809 int const left_margin = labelEnd(pit, row);
814 int const fill = paper_width - w - rightMargin(*pit, *bv()->buffer(), row);
816 // If this case happens, it means that our calculation
817 // of the widths of the chars when we do rowBreakPoint()
818 // went wrong for some reason. Typically in list bodies.
819 // Things just about hobble on anyway, though you'll end
820 // up with a "fill_separator" less than zero, which corresponds
821 // to inter-word spacing being too small. Hopefully this problem
822 // will die when the label hacks die.
823 if (lyxerr.debugging() && fill < 0) {
824 lyxerr[Debug::GUI] << "Eek, fill() was < 0: " << fill
825 << " w " << w << " paper_width " << paper_width
826 << " right margin " << rightMargin(*pit, *bv()->buffer(), row) << endl;
832 // returns the minimum space a manual label needs on the screen in pixel
833 int LyXText::labelFill(ParagraphList::iterator pit, Row const & row) const
835 pos_type last = pit->beginningOfBody();
837 BOOST_ASSERT(last > 0);
839 // -1 because a label ends either with a space that is in the label,
840 // or with the beginning of a footnote that is outside the label.
843 // a separator at this end does not count
844 if (pit->isLineSeparator(last))
848 pos_type i = row.pos();
850 w += singleWidth(pit, i);
855 string const & labwidstr = pit->params().labelWidthString();
856 if (!labwidstr.empty()) {
857 LyXFont const labfont = getLabelFont(pit);
858 int const labwidth = font_metrics::width(labwidstr, labfont);
859 fill = max(labwidth - w, 0);
866 LColor_color LyXText::backgroundColor() const
869 return inset_owner->backgroundColor();
871 return LColor::background;
875 void LyXText::setHeightOfRow(ParagraphList::iterator pit, Row & row)
877 // get the maximum ascent and the maximum descent
878 double layoutasc = 0;
879 double layoutdesc = 0;
882 // ok, let us initialize the maxasc and maxdesc value.
883 // Only the fontsize count. The other properties
884 // are taken from the layoutfont. Nicer on the screen :)
885 LyXLayout_ptr const & layout = pit->layout();
887 // as max get the first character of this row then it can increase but not
888 // decrease the height. Just some point to start with so we don't have to
889 // do the assignment below too often.
890 LyXFont font = getFont(pit, row.pos());
891 LyXFont::FONT_SIZE const tmpsize = font.size();
892 font = getLayoutFont(pit);
893 LyXFont::FONT_SIZE const size = font.size();
894 font.setSize(tmpsize);
896 LyXFont labelfont = getLabelFont(pit);
898 double spacing_val = 1.0;
899 if (!pit->params().spacing().isDefault())
900 spacing_val = pit->params().spacing().getValue();
902 spacing_val = bv()->buffer()->params().spacing().getValue();
903 //lyxerr << "spacing_val = " << spacing_val << endl;
905 int maxasc = int(font_metrics::maxAscent(font) *
906 layout->spacing.getValue() * spacing_val);
907 int maxdesc = int(font_metrics::maxDescent(font) *
908 layout->spacing.getValue() * spacing_val);
910 pos_type const pos_end = lastPos(*pit, row);
915 // We re-use the font resolution for the entire font span when possible
916 LyXFont font = getFont(pit, row.pos());
917 lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(row.pos());
920 Paragraph const & par = *pit;
922 // Check if any insets are larger
923 for (pos_type pos = row.pos(); pos <= pos_end; ++pos) {
924 // Manual inlined optimised version of common case of
925 // "maxwidth += singleWidth(pit, pos);"
926 char const c = par.getChar(pos);
928 if (IsPrintable(c)) {
929 if (pos > endPosOfFontSpan) {
930 // We need to get the next font
931 font = getFont(pit, pos);
932 endPosOfFontSpan = par.getEndPosOfFontSpan(pos);
934 if (! font.language()->RightToLeft()) {
935 maxwidth += font_metrics::width(c, font);
937 // Fall-back to normal case
938 maxwidth += singleWidth(pit, pos, c, font);
939 // And flush font cache
940 endPosOfFontSpan = 0;
943 // Special handling of insets - are any larger?
944 if (par.isInset(pos)) {
945 InsetOld const * tmpinset = par.getInset(pos);
947 maxwidth += tmpinset->width();
948 maxasc = max(maxasc, tmpinset->ascent());
949 maxdesc = max(maxdesc, tmpinset->descent());
952 // Fall-back to normal case
953 maxwidth += singleWidth(pit, pos, c, font);
954 // And flush font cache
955 endPosOfFontSpan = 0;
961 // Check if any custom fonts are larger (Asger)
962 // This is not completely correct, but we can live with the small,
963 // cosmetic error for now.
964 LyXFont::FONT_SIZE maxsize =
965 pit->highestFontInRange(row.pos(), pos_end, size);
966 if (maxsize > font.size()) {
967 font.setSize(maxsize);
968 maxasc = max(maxasc, font_metrics::maxAscent(font));
969 maxdesc = max(maxdesc, font_metrics::maxDescent(font));
972 // This is nicer with box insets:
976 row.ascent_of_text(maxasc);
980 BufferParams const & bufparams = bv()->buffer()->params();
981 // some parksips VERY EASY IMPLEMENTATION
982 if (bv()->buffer()->params().paragraph_separation ==
983 BufferParams::PARSEP_SKIP)
985 if (layout->isParagraph()
986 && pit->getDepth() == 0
987 && pit != ownerParagraphs().begin())
989 maxasc += bufparams.getDefSkip().inPixels(*bv());
990 } else if (pit != ownerParagraphs().begin() &&
991 boost::prior(pit)->layout()->isParagraph() &&
992 boost::prior(pit)->getDepth() == 0)
994 // is it right to use defskip here too? (AS)
995 maxasc += bufparams.getDefSkip().inPixels(*bv());
1000 if (pit == ownerParagraphs().begin() && !isInInset())
1001 maxasc += PAPER_MARGIN;
1003 // add the vertical spaces, that the user added
1004 maxasc += getLengthMarkerHeight(*bv(), pit->params().spaceTop());
1006 // do not forget the DTP-lines!
1007 // there height depends on the font of the nearest character
1008 if (pit->params().lineTop())
1010 maxasc += 2 * font_metrics::ascent('x', getFont(pit, 0));
1011 // and now the pagebreaks
1012 if (pit->params().pagebreakTop())
1013 maxasc += 3 * defaultRowHeight();
1015 if (pit->params().startOfAppendix())
1016 maxasc += 3 * defaultRowHeight();
1018 // This is special code for the chapter, since the label of this
1019 // layout is printed in an extra row
1020 if (layout->counter == "chapter" && bufparams.secnumdepth >= 0) {
1021 float spacing_val = 1.0;
1022 if (!pit->params().spacing().isDefault()) {
1023 spacing_val = pit->params().spacing().getValue();
1025 spacing_val = bufparams.spacing().getValue();
1028 labeladdon = int(font_metrics::maxDescent(labelfont) *
1029 layout->spacing.getValue() *
1031 + int(font_metrics::maxAscent(labelfont) *
1032 layout->spacing.getValue() *
1036 // special code for the top label
1037 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
1038 || layout->labeltype == LABEL_BIBLIO
1039 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1040 && isFirstInSequence(pit, ownerParagraphs())
1041 && !pit->getLabelstring().empty())
1043 float spacing_val = 1.0;
1044 if (!pit->params().spacing().isDefault()) {
1045 spacing_val = pit->params().spacing().getValue();
1047 spacing_val = bufparams.spacing().getValue();
1051 (font_metrics::maxAscent(labelfont) +
1052 font_metrics::maxDescent(labelfont)) *
1053 layout->spacing.getValue() *
1055 + layout->topsep * defaultRowHeight()
1056 + layout->labelbottomsep * defaultRowHeight());
1059 // And now the layout spaces, for example before and after
1060 // a section, or between the items of a itemize or enumerate
1063 if (!pit->params().pagebreakTop()) {
1064 ParagraphList::iterator prev =
1065 depthHook(pit, ownerParagraphs(),
1067 if (prev != pit && prev->layout() == layout &&
1068 prev->getDepth() == pit->getDepth() &&
1069 prev->getLabelWidthString() == pit->getLabelWidthString())
1071 layoutasc = (layout->itemsep * defaultRowHeight());
1072 // } else if (rit != firstRow()) {
1073 } else if (pit != ownerParagraphs().begin() || row.pos() != 0) {
1074 tmptop = layout->topsep;
1077 layoutasc = (tmptop * defaultRowHeight());
1078 } else if (pit->params().lineTop()) {
1079 tmptop = layout->topsep;
1082 layoutasc = (tmptop * defaultRowHeight());
1085 prev = outerHook(pit, ownerParagraphs());
1086 if (prev != ownerParagraphs().end()) {
1087 maxasc += int(prev->layout()->parsep * defaultRowHeight());
1088 } else if (pit != ownerParagraphs().begin()) {
1089 ParagraphList::iterator prior_pit = boost::prior(pit);
1090 if (prior_pit->getDepth() != 0 ||
1091 prior_pit->layout() == layout) {
1092 maxasc += int(layout->parsep * defaultRowHeight());
1098 // is it a bottom line?
1099 if (row.end() == pit->size()) {
1100 // the bottom margin
1101 ParagraphList::iterator nextpit = boost::next(pit);
1102 if (nextpit == ownerParagraphs().end() && !isInInset())
1103 maxdesc += PAPER_MARGIN;
1105 // add the vertical spaces, that the user added
1106 maxdesc += getLengthMarkerHeight(*bv(), pit->params().spaceBottom());
1108 // do not forget the DTP-lines!
1109 // there height depends on the font of the nearest character
1110 if (pit->params().lineBottom())
1111 maxdesc += 2 * font_metrics::ascent('x',
1112 getFont(pit, max(pos_type(0), pit->size() - 1)));
1114 // and now the pagebreaks
1115 if (pit->params().pagebreakBottom())
1116 maxdesc += 3 * defaultRowHeight();
1118 // and now the layout spaces, for example before and after
1119 // a section, or between the items of a itemize or enumerate
1121 if (!pit->params().pagebreakBottom()
1122 && nextpit != ownerParagraphs().end()) {
1123 ParagraphList::iterator comparepit = pit;
1127 if (comparepit->getDepth() > nextpit->getDepth()) {
1128 usual = (comparepit->layout()->bottomsep * defaultRowHeight());
1129 comparepit = depthHook(comparepit, ownerParagraphs(), nextpit->getDepth());
1130 if (comparepit->layout()!= nextpit->layout()
1131 || nextpit->getLabelWidthString() !=
1132 comparepit->getLabelWidthString())
1134 unusual = (comparepit->layout()->bottomsep * defaultRowHeight());
1136 if (unusual > usual)
1137 layoutdesc = unusual;
1140 } else if (comparepit->getDepth() == nextpit->getDepth()) {
1142 if (comparepit->layout() != nextpit->layout()
1143 || nextpit->getLabelWidthString() !=
1144 comparepit->getLabelWidthString())
1145 layoutdesc = int(comparepit->layout()->bottomsep * defaultRowHeight());
1150 // incalculate the layout spaces
1151 maxasc += int(layoutasc * 2 / (2 + pit->getDepth()));
1152 maxdesc += int(layoutdesc * 2 / (2 + pit->getDepth()));
1154 row.height(maxasc + maxdesc + labeladdon);
1155 row.baseline(maxasc + labeladdon);
1156 row.top_of_text(row.baseline() - font_metrics::maxAscent(font));
1158 row.width(maxwidth);
1160 width = max(0, workWidth());
1161 RowList::iterator rit = firstRow();
1162 RowList::iterator end = endRow();
1163 ParagraphList::iterator it = ownerParagraphs().begin();
1164 while (rit != end) {
1165 if (rit->width() > width)
1166 width = rit->width();
1173 void LyXText::breakParagraph(ParagraphList & paragraphs, char keep_layout)
1175 // allow only if at start or end, or all previous is new text
1176 if (cursor.pos() && cursor.pos() != cursorPar()->size()
1177 && cursorPar()->isChangeEdited(0, cursor.pos()))
1180 LyXTextClass const & tclass =
1181 bv()->buffer()->params().getLyXTextClass();
1182 LyXLayout_ptr const & layout = cursorPar()->layout();
1184 // this is only allowed, if the current paragraph is not empty or caption
1185 // and if it has not the keepempty flag active
1186 if (cursorPar()->empty() && !cursorPar()->allowEmpty()
1187 && layout->labeltype != LABEL_SENSITIVE)
1190 recUndo(cursor.par());
1192 // Always break behind a space
1194 // It is better to erase the space (Dekel)
1195 if (cursor.pos() < cursorPar()->size()
1196 && cursorPar()->isLineSeparator(cursor.pos()))
1197 cursorPar()->erase(cursor.pos());
1199 // break the paragraph
1203 keep_layout = layout->isEnvironment();
1205 // we need to set this before we insert the paragraph. IMO the
1206 // breakParagraph call should return a bool if it inserts the
1207 // paragraph before or behind and we should react on that one
1208 // but we can fix this in 1.3.0 (Jug 20020509)
1209 bool const isempty = (cursorPar()->allowEmpty() && cursorPar()->empty());
1210 ::breakParagraph(bv()->buffer()->params(), paragraphs, cursorPar(),
1211 cursor.pos(), keep_layout);
1213 #warning Trouble Point! (Lgb)
1214 // When ::breakParagraph is called from within an inset we must
1215 // ensure that the correct ParagraphList is used. Today that is not
1216 // the case and the Buffer::paragraphs is used. Not good. (Lgb)
1217 ParagraphList::iterator next_par = boost::next(cursorPar());
1219 // well this is the caption hack since one caption is really enough
1220 if (layout->labeltype == LABEL_SENSITIVE) {
1222 // set to standard-layout
1223 cursorPar()->applyLayout(tclass.defaultLayout());
1225 // set to standard-layout
1226 next_par->applyLayout(tclass.defaultLayout());
1229 // if the cursor is at the beginning of a row without prior newline,
1231 // This touches only the screen-update. Otherwise we would may have
1232 // an empty row on the screen
1233 if (cursor.pos() && cursorRow()->pos() == cursor.pos()
1234 && !cursorPar()->isNewline(cursor.pos() - 1))
1239 while (!next_par->empty() && next_par->isNewline(0))
1243 redoParagraph(cursorPar());
1244 redoParagraph(next_par);
1246 // This check is necessary. Otherwise the new empty paragraph will
1247 // be deleted automatically. And it is more friendly for the user!
1248 if (cursor.pos() || isempty)
1249 setCursor(next_par, 0);
1251 setCursor(cursorPar(), 0);
1255 // convenience function
1256 void LyXText::redoParagraph()
1259 redoParagraph(cursorPar());
1260 setCursorIntern(cursor.par(), cursor.pos());
1264 // insert a character, moves all the following breaks in the
1265 // same Paragraph one to the right and make a rebreak
1266 void LyXText::insertChar(char c)
1268 recordUndo(Undo::INSERT, this, cursor.par(), cursor.par());
1270 // When the free-spacing option is set for the current layout,
1271 // disable the double-space checking
1273 bool const freeSpacing = cursorPar()->layout()->free_spacing ||
1274 cursorPar()->isFreeSpacing();
1276 if (lyxrc.auto_number) {
1277 static string const number_operators = "+-/*";
1278 static string const number_unary_operators = "+-";
1279 static string const number_seperators = ".,:";
1281 if (current_font.number() == LyXFont::ON) {
1282 if (!IsDigit(c) && !contains(number_operators, c) &&
1283 !(contains(number_seperators, c) &&
1284 cursor.pos() >= 1 &&
1285 cursor.pos() < cursorPar()->size() &&
1286 getFont(cursorPar(), cursor.pos()).number() == LyXFont::ON &&
1287 getFont(cursorPar(), cursor.pos() - 1).number() == LyXFont::ON)
1289 number(bv()); // Set current_font.number to OFF
1290 } else if (IsDigit(c) &&
1291 real_current_font.isVisibleRightToLeft()) {
1292 number(bv()); // Set current_font.number to ON
1294 if (cursor.pos() > 0) {
1295 char const c = cursorPar()->getChar(cursor.pos() - 1);
1296 if (contains(number_unary_operators, c) &&
1297 (cursor.pos() == 1 ||
1298 cursorPar()->isSeparator(cursor.pos() - 2) ||
1299 cursorPar()->isNewline(cursor.pos() - 2))
1305 } else if (contains(number_seperators, c) &&
1306 cursor.pos() >= 2 &&
1309 cursor.pos() - 2).number() == LyXFont::ON) {
1320 // First check, if there will be two blanks together or a blank at
1321 // the beginning of a paragraph.
1322 // I decided to handle blanks like normal characters, the main
1323 // difference are the special checks when calculating the row.fill
1324 // (blank does not count at the end of a row) and the check here
1326 // The bug is triggered when we type in a description environment:
1327 // The current_font is not changed when we go from label to main text
1328 // and it should (along with realtmpfont) when we type the space.
1329 // CHECK There is a bug here! (Asger)
1331 // store the current font. This is because of the use of cursor
1332 // movements. The moving cursor would refresh the current font
1333 LyXFont realtmpfont = real_current_font;
1334 LyXFont rawtmpfont = current_font;
1336 if (!freeSpacing && IsLineSeparatorChar(c)) {
1337 if ((cursor.pos() > 0
1338 && cursorPar()->isLineSeparator(cursor.pos() - 1))
1339 || (cursor.pos() > 0
1340 && cursorPar()->isNewline(cursor.pos() - 1))
1341 || (cursor.pos() == 0)) {
1342 static bool sent_space_message = false;
1343 if (!sent_space_message) {
1344 if (cursor.pos() == 0)
1345 bv()->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1347 bv()->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1348 sent_space_message = true;
1355 // Here case LyXText::InsertInset already inserted the character
1356 if (c != Paragraph::META_INSET)
1357 cursorPar()->insertChar(cursor.pos(), c);
1359 setCharFont(cursorPar(), cursor.pos(), rawtmpfont);
1361 current_font = rawtmpfont;
1362 real_current_font = realtmpfont;
1363 redoParagraph(cursorPar());
1364 setCursor(cursor.par(), cursor.pos() + 1, false, cursor.boundary());
1370 void LyXText::charInserted()
1372 // Here we could call finishUndo for every 20 characters inserted.
1373 // This is from my experience how emacs does it. (Lgb)
1374 static unsigned int counter;
1384 void LyXText::prepareToPrint(ParagraphList::iterator pit,
1385 RowList::iterator const rit) const
1387 double w = rit->fill();
1388 double fill_hfill = 0;
1389 double fill_label_hfill = 0;
1390 double fill_separator = 0;
1394 pit->isRightToLeftPar(bv()->buffer()->params());
1396 x = workWidth() > 0 ? rightMargin(*pit, *bv()->buffer(), *rit) : 0;
1398 x = workWidth() > 0 ? leftMargin(pit, *rit) : 0;
1400 // is there a manual margin with a manual label
1401 LyXLayout_ptr const & layout = pit->layout();
1403 if (layout->margintype == MARGIN_MANUAL
1404 && layout->labeltype == LABEL_MANUAL) {
1405 /// We might have real hfills in the label part
1406 int nlh = numberOfLabelHfills(*pit, *rit);
1408 // A manual label par (e.g. List) has an auto-hfill
1409 // between the label text and the body of the
1411 // But we don't want to do this auto hfill if the par
1416 if (nlh && !pit->getLabelWidthString().empty()) {
1417 fill_label_hfill = labelFill(pit, *rit) / double(nlh);
1421 // are there any hfills in the row?
1422 int const nh = numberOfHfills(*pit, *rit);
1426 fill_hfill = w / nh;
1427 // we don't have to look at the alignment if it is ALIGN_LEFT and
1428 // if the row is already larger then the permitted width as then
1429 // we force the LEFT_ALIGN'edness!
1430 } else if (int(rit->width()) < workWidth()) {
1431 // is it block, flushleft or flushright?
1432 // set x how you need it
1434 if (pit->params().align() == LYX_ALIGN_LAYOUT) {
1435 align = layout->align;
1437 align = pit->params().align();
1439 InsetOld * inset = 0;
1440 // ERT insets should always be LEFT ALIGNED on screen
1441 inset = pit->inInset();
1442 if (inset && inset->owner() &&
1443 inset->owner()->lyxCode() == InsetOld::ERT_CODE)
1445 align = LYX_ALIGN_LEFT;
1449 case LYX_ALIGN_BLOCK:
1451 int const ns = numberOfSeparators(*pit, *rit);
1452 RowList::iterator next_row = boost::next(rit);
1454 && next_row != pit->rows.end()
1455 && !pit->isNewline(next_row->pos() - 1)
1457 fill_separator = w / ns;
1458 } else if (is_rtl) {
1463 case LYX_ALIGN_RIGHT:
1466 case LYX_ALIGN_CENTER:
1472 computeBidiTables(*pit, *bv()->buffer(), *rit);
1474 pos_type body_pos = pit->beginningOfBody();
1475 pos_type last = lastPos(*pit, *rit);
1478 (body_pos - 1 > last ||
1479 !pit->isLineSeparator(body_pos - 1))) {
1480 x += font_metrics::width(layout->labelsep, getLabelFont(pit));
1481 if (body_pos - 1 <= last)
1482 x += fill_label_hfill;
1486 rit->fill_hfill(fill_hfill);
1487 rit->fill_label_hfill(fill_label_hfill);
1488 rit->fill_separator(fill_separator);
1493 // important for the screen
1496 // the cursor set functions have a special mechanism. When they
1497 // realize, that you left an empty paragraph, they will delete it.
1498 // They also delete the corresponding row
1500 void LyXText::cursorRightOneWord()
1502 ::cursorRightOneWord(*this, cursor, ownerParagraphs());
1503 setCursor(cursorPar(), cursor.pos());
1507 // Skip initial whitespace at end of word and move cursor to *start*
1508 // of prior word, not to end of next prior word.
1509 void LyXText::cursorLeftOneWord()
1511 LyXCursor tmpcursor = cursor;
1512 ::cursorLeftOneWord(*this, tmpcursor, ownerParagraphs());
1513 setCursor(getPar(tmpcursor), tmpcursor.pos());
1517 void LyXText::selectWord(word_location loc)
1519 LyXCursor from = cursor;
1520 LyXCursor to = cursor;
1521 ::getWord(*this, from, to, loc, ownerParagraphs());
1523 setCursor(from.par(), from.pos());
1526 selection.cursor = cursor;
1527 setCursor(to.par(), to.pos());
1532 // Select the word currently under the cursor when no
1533 // selection is currently set
1534 bool LyXText::selectWordWhenUnderCursor(word_location loc)
1536 if (!selection.set()) {
1538 return selection.set();
1544 void LyXText::acceptChange()
1546 if (!selection.set() && cursorPar()->size())
1549 if (selection.start.par() == selection.end.par()) {
1550 LyXCursor & startc = selection.start;
1551 LyXCursor & endc = selection.end;
1552 recordUndo(Undo::INSERT, this, startc.par());
1553 getPar(startc)->acceptChange(startc.pos(), endc.pos());
1556 redoParagraph(getPar(startc));
1557 setCursorIntern(startc.par(), 0);
1559 #warning handle multi par selection
1563 void LyXText::rejectChange()
1565 if (!selection.set() && cursorPar()->size())
1568 if (selection.start.par() == selection.end.par()) {
1569 LyXCursor & startc = selection.start;
1570 LyXCursor & endc = selection.end;
1571 recordUndo(Undo::INSERT, this, startc.par());
1572 getPar(startc)->rejectChange(startc.pos(), endc.pos());
1575 redoParagraph(getPar(startc));
1576 setCursorIntern(startc.par(), 0);
1578 #warning handle multi par selection
1582 // This function is only used by the spellchecker for NextWord().
1583 // It doesn't handle LYX_ACCENTs and probably never will.
1584 WordLangTuple const LyXText::selectNextWordToSpellcheck(float & value)
1586 if (the_locking_inset) {
1587 WordLangTuple word = the_locking_inset->selectNextWordToSpellcheck(bv(), value);
1588 if (!word.word().empty()) {
1589 value += float(cursor.y());
1590 value /= float(height);
1593 // we have to go on checking so move cursor to the next char
1594 if (cursor.pos() == cursorPar()->size()) {
1595 if (cursor.par() + 1 == int(ownerParagraphs().size()))
1597 cursor.par(cursor.par() + 1);
1600 cursor.pos(cursor.pos() + 1);
1602 int const tmppar = cursor.par();
1604 // If this is not the very first word, skip rest of
1605 // current word because we are probably in the middle
1606 // of a word if there is text here.
1607 if (cursor.pos() || cursor.par() != 0) {
1608 while (cursor.pos() < cursorPar()->size()
1609 && cursorPar()->isLetter(cursor.pos()))
1610 cursor.pos(cursor.pos() + 1);
1613 // Now, skip until we have real text (will jump paragraphs)
1615 ParagraphList::iterator cpit = cursorPar();
1616 pos_type const cpos = cursor.pos();
1618 if (cpos == cpit->size()) {
1619 if (cursor.par() + 1 != int(ownerParagraphs().size())) {
1620 cursor.par(cursor.par() + 1);
1627 bool const is_good_inset = cpit->isInset(cpos)
1628 && cpit->getInset(cpos)->allowSpellcheck();
1630 if (!isDeletedText(*cpit, cpos)
1631 && (is_good_inset || cpit->isLetter(cpos)))
1634 cursor.pos(cpos + 1);
1637 // now check if we hit an inset so it has to be a inset containing text!
1638 if (cursor.pos() < cursorPar()->size() &&
1639 cursorPar()->isInset(cursor.pos())) {
1641 FuncRequest cmd(bv(), LFUN_INSET_EDIT, "left");
1642 cursorPar()->getInset(cursor.pos())->localDispatch(cmd);
1643 // now call us again to do the above trick
1644 // but obviously we have to start from down below ;)
1645 return bv()->text->selectNextWordToSpellcheck(value);
1648 // Update the value if we changed paragraphs
1649 if (cursor.par() != tmppar) {
1650 setCursor(cursor.par(), cursor.pos());
1651 value = float(cursor.y())/float(height);
1654 // Start the selection from here
1655 selection.cursor = cursor;
1657 string lang_code = getFont(cursorPar(), cursor.pos()).language()->code();
1658 // and find the end of the word (insets like optional hyphens
1659 // and ligature break are part of a word)
1660 while (cursor.pos() < cursorPar()->size()
1661 && cursorPar()->isLetter(cursor.pos())
1662 && !isDeletedText(*cursorPar(), cursor.pos()))
1663 cursor.pos(cursor.pos() + 1);
1665 // Finally, we copy the word to a string and return it
1667 if (selection.cursor.pos() < cursor.pos()) {
1669 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
1670 if (!cursorPar()->isInset(i))
1671 str += cursorPar()->getChar(i);
1674 return WordLangTuple(str, lang_code);
1678 // This one is also only for the spellchecker
1679 void LyXText::selectSelectedWord()
1681 if (the_locking_inset) {
1682 the_locking_inset->selectSelectedWord(bv());
1685 // move cursor to the beginning
1686 setCursor(selection.cursor.par(), selection.cursor.pos());
1688 // set the sel cursor
1689 selection.cursor = cursor;
1691 // now find the end of the word
1692 while (cursor.pos() < cursorPar()->size()
1693 && cursorPar()->isLetter(cursor.pos()))
1694 cursor.pos(cursor.pos() + 1);
1696 setCursor(cursorPar(), cursor.pos());
1698 // finally set the selection
1703 // Delete from cursor up to the end of the current or next word.
1704 void LyXText::deleteWordForward()
1706 if (cursorPar()->empty())
1709 LyXCursor tmpcursor = cursor;
1710 selection.set(true); // to avoid deletion
1711 cursorRightOneWord();
1712 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1713 selection.cursor = cursor;
1717 // Great, CutSelection() gets rid of multiple spaces.
1718 cutSelection(true, false);
1723 // Delete from cursor to start of current or prior word.
1724 void LyXText::deleteWordBackward()
1726 if (cursorPar()->empty())
1729 LyXCursor tmpcursor = cursor;
1730 selection.set(true); // to avoid deletion
1731 cursorLeftOneWord();
1732 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1733 selection.cursor = cursor;
1736 cutSelection(true, false);
1741 // Kill to end of line.
1742 void LyXText::deleteLineForward()
1744 if (cursorPar()->empty())
1745 // Paragraph is empty, so we just go to the right
1748 LyXCursor tmpcursor = cursor;
1749 // We can't store the row over a regular setCursor
1750 // so we set it to 0 and reset it afterwards.
1751 selection.set(true); // to avoid deletion
1753 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1754 selection.cursor = cursor;
1757 // What is this test for ??? (JMarc)
1758 if (!selection.set()) {
1759 deleteWordForward();
1761 cutSelection(true, false);
1767 void LyXText::changeCase(LyXText::TextCase action)
1772 if (selection.set()) {
1773 from = selection.start;
1777 ::getWord(*this, from, to, lyx::PARTIAL_WORD, ownerParagraphs());
1778 setCursor(to.par(), to.pos() + 1);
1781 recordUndo(Undo::ATOMIC, this, from.par(), to.par());
1783 pos_type pos = from.pos();
1784 int par = from.par();
1786 while (par != int(ownerParagraphs().size()) &&
1787 (pos != to.pos() || par != to.par())) {
1788 ParagraphList::iterator pit = getPar(par);
1789 if (pos == pit->size()) {
1794 unsigned char c = pit->getChar(pos);
1795 if (c != Paragraph::META_INSET) {
1797 case text_lowercase:
1800 case text_capitalization:
1802 action = text_lowercase;
1804 case text_uppercase:
1810 pit->setChar(pos, c);
1816 void LyXText::Delete()
1818 // this is a very easy implementation
1820 LyXCursor old_cursor = cursor;
1821 int const old_cur_par_id = cursorPar()->id();
1822 int const old_cur_par_prev_id =
1823 old_cursor.par() ? getPar(old_cursor.par() - 1)->id() : -1;
1825 // just move to the right
1828 // CHECK Look at the comment here.
1829 // This check is not very good...
1830 // The cursorRightIntern calls DeleteEmptyParagraphMechanism
1831 // and that can very well delete the par or par->previous in
1832 // old_cursor. Will a solution where we compare paragraph id's
1834 int iid = cursor.par() ? getPar(cursor.par() - 1)->id() : -1;
1835 if (iid == old_cur_par_prev_id && cursorPar()->id() != old_cur_par_id) {
1836 // delete-empty-paragraph-mechanism has done it
1840 // if you had success make a backspace
1841 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
1842 recordUndo(Undo::DELETE, this, old_cursor.par());
1848 void LyXText::backspace()
1850 // Get the font that is used to calculate the baselineskip
1851 ParagraphList::iterator pit = cursorPar();
1852 pos_type lastpos = pit->size();
1854 if (cursor.pos() == 0) {
1855 // The cursor is at the beginning of a paragraph,
1856 // so the the backspace will collapse two paragraphs into one.
1858 // but it's not allowed unless it's new
1859 if (pit->isChangeEdited(0, pit->size()))
1862 // we may paste some paragraphs
1864 // is it an empty paragraph?
1866 if (lastpos == 0 || (lastpos == 1 && pit->isSeparator(0))) {
1867 // This is an empty paragraph and we delete it just
1868 // by moving the cursor one step
1869 // left and let the DeleteEmptyParagraphMechanism
1870 // handle the actual deletion of the paragraph.
1873 ParagraphList::iterator tmppit = getPar(cursor.par() - 1);
1874 if (cursorPar()->layout() == tmppit->layout()
1875 && cursorPar()->getAlign() == tmppit->getAlign()) {
1876 // Inherit bottom DTD from the paragraph below.
1877 // (the one we are deleting)
1878 tmppit->params().lineBottom(cursorPar()->params().lineBottom());
1879 tmppit->params().spaceBottom(cursorPar()->params().spaceBottom());
1880 tmppit->params().pagebreakBottom(cursorPar()->params().pagebreakBottom());
1885 // the layout things can change the height of a row !
1891 if (cursor.par() != 0)
1892 recordUndo(Undo::DELETE, this, cursor.par() - 1, cursor.par());
1894 ParagraphList::iterator tmppit = cursorPar();
1895 // We used to do cursorLeftIntern() here, but it is
1896 // not a good idea since it triggers the auto-delete
1897 // mechanism. So we do a cursorLeftIntern()-lite,
1898 // without the dreaded mechanism. (JMarc)
1899 if (cursor.par() != 0) {
1900 // steps into the above paragraph.
1901 setCursorIntern(cursor.par() - 1,
1902 getPar(cursor.par() - 1)->size(),
1906 // Pasting is not allowed, if the paragraphs have different
1907 // layout. I think it is a real bug of all other
1908 // word processors to allow it. It confuses the user.
1909 // Correction: Pasting is always allowed with standard-layout
1910 Buffer & buf = *bv()->buffer();
1911 BufferParams const & bufparams = buf.params();
1912 LyXTextClass const & tclass = bufparams.getLyXTextClass();
1914 if (cursorPar() != tmppit
1915 && (cursorPar()->layout() == tmppit->layout()
1916 || tmppit->layout() == tclass.defaultLayout())
1917 && cursorPar()->getAlign() == tmppit->getAlign()) {
1918 mergeParagraph(bufparams,
1919 buf.paragraphs(), cursorPar());
1921 if (cursor.pos() && cursorPar()->isSeparator(cursor.pos() - 1))
1922 cursor.pos(cursor.pos() - 1);
1924 // the row may have changed, block, hfills etc.
1926 setCursor(cursor.par(), cursor.pos(), false);
1929 // this is the code for a normal backspace, not pasting
1931 recordUndo(Undo::DELETE, this, cursor.par());
1932 // We used to do cursorLeftIntern() here, but it is
1933 // not a good idea since it triggers the auto-delete
1934 // mechanism. So we do a cursorLeftIntern()-lite,
1935 // without the dreaded mechanism. (JMarc)
1936 setCursorIntern(cursor.par(), cursor.pos() - 1,
1937 false, cursor.boundary());
1938 cursorPar()->erase(cursor.pos());
1941 lastpos = cursorPar()->size();
1942 if (cursor.pos() == lastpos)
1946 setCursor(cursor.par(), cursor.pos(), false, !cursor.boundary());
1950 ParagraphList::iterator LyXText::cursorPar() const
1952 return getPar(cursor.par());
1956 ParagraphList::iterator LyXText::getPar(LyXCursor const & cur) const
1958 return getPar(cur.par());
1962 ParagraphList::iterator LyXText::getPar(int par) const
1964 BOOST_ASSERT(par >= 0);
1965 BOOST_ASSERT(par < int(ownerParagraphs().size()));
1966 ParagraphList::iterator pit = ownerParagraphs().begin();
1967 std::advance(pit, par);
1973 RowList::iterator LyXText::cursorRow() const
1975 return getRow(*cursorPar(), cursor.pos());
1979 RowList::iterator LyXText::getRow(LyXCursor const & cur) const
1981 return getRow(*getPar(cur), cur.pos());
1985 RowList::iterator LyXText::getRow(Paragraph & par, pos_type pos) const
1987 RowList::iterator rit = boost::prior(par.rows.end());
1988 RowList::iterator const begin = par.rows.begin();
1990 while (rit != begin && rit->pos() > pos)
1998 LyXText::getRowNearY(int y, ParagraphList::iterator & pit) const
2000 //lyxerr << "getRowNearY: y " << y << endl;
2002 pit = boost::prior(ownerParagraphs().end());
2004 RowList::iterator rit = lastRow();
2005 RowList::iterator rbegin = firstRow();
2007 while (rit != rbegin && int(pit->y + rit->y_offset()) > y)
2008 previousRow(pit, rit);
2014 int LyXText::getDepth() const
2016 return cursorPar()->getDepth();
2020 RowList::iterator LyXText::firstRow() const
2022 return ownerParagraphs().front().rows.begin();
2026 RowList::iterator LyXText::lastRow() const
2028 return boost::prior(endRow());
2032 RowList::iterator LyXText::endRow() const
2034 return ownerParagraphs().back().rows.end();
2038 void LyXText::nextRow(ParagraphList::iterator & pit,
2039 RowList::iterator & rit) const
2042 if (rit == pit->rows.end()) {
2044 if (pit == ownerParagraphs().end())
2047 rit = pit->rows.begin();
2052 void LyXText::previousRow(ParagraphList::iterator & pit,
2053 RowList::iterator & rit) const
2055 if (rit != pit->rows.begin())
2058 BOOST_ASSERT(pit != ownerParagraphs().begin());
2060 rit = boost::prior(pit->rows.end());
2065 string LyXText::selectionAsString(Buffer const & buffer, bool label) const
2067 if (!selection.set())
2070 // should be const ...
2071 ParagraphList::iterator startpit = getPar(selection.start);
2072 ParagraphList::iterator endpit = getPar(selection.end);
2073 size_t const startpos = selection.start.pos();
2074 size_t const endpos = selection.end.pos();
2076 if (startpit == endpit)
2077 return startpit->asString(buffer, startpos, endpos, label);
2079 // First paragraph in selection
2081 startpit->asString(buffer, startpos, startpit->size(), label) + "\n\n";
2083 // The paragraphs in between (if any)
2084 ParagraphList::iterator pit = startpit;
2085 for (++pit; pit != endpit; ++pit)
2086 result += pit->asString(buffer, 0, pit->size(), label) + "\n\n";
2088 // Last paragraph in selection
2089 result += endpit->asString(buffer, 0, endpos, label);
2095 int LyXText::parOffset(ParagraphList::iterator pit) const
2097 return std::distance(ownerParagraphs().begin(), pit);
2101 int LyXText::redoParagraphInternal(ParagraphList::iterator pit)
2103 // remove rows of paragraph, keep track of height changes
2104 height -= pit->height;
2108 InsetList::iterator ii = pit->insetlist.begin();
2109 InsetList::iterator iend = pit->insetlist.end();
2110 for (; ii != iend; ++ii) {
2112 MetricsInfo mi(bv(), getFont(pit, ii->pos), workWidth());
2113 ii->inset->metrics(mi, dim);
2116 // rebreak the paragraph
2118 int const ww = workWidth();
2121 for (pos_type z = 0; z < pit->size() + 1; ) {
2123 z = rowBreakPoint(pit, row) + 1;
2125 pit->rows.push_back(row);
2128 RowList::iterator rit = pit->rows.begin();
2129 RowList::iterator end = pit->rows.end();
2130 for (rit = pit->rows.begin(); rit != end; ++rit) {
2131 int const f = fill(pit, *rit, ww);
2132 int const w = ww - f;
2133 par_width = std::max(par_width, w);
2136 prepareToPrint(pit, rit);
2137 setHeightOfRow(pit, *rit);
2138 rit->y_offset(pit->height);
2139 pit->height += rit->height();
2141 height += pit->height;
2143 //lyxerr << "redoParagraph: " << pit->rows.size() << " rows\n";
2148 int LyXText::redoParagraphs(ParagraphList::iterator start,
2149 ParagraphList::iterator end)
2152 for ( ; start != end; ++start) {
2153 int par_width = redoParagraphInternal(start);
2154 pars_width = std::max(par_width, pars_width);
2156 updateRowPositions();
2161 void LyXText::redoParagraph(ParagraphList::iterator pit)
2163 redoParagraphInternal(pit);
2164 updateRowPositions();
2168 void LyXText::fullRebreak()
2170 redoParagraphs(ownerParagraphs().begin(), ownerParagraphs().end());
2172 selection.cursor = cursor;
2176 void LyXText::metrics(MetricsInfo & mi, Dimension & dim)
2178 //lyxerr << "LyXText::metrics: width: " << mi.base.textwidth
2179 // << " workWidth: " << workWidth() << endl;
2180 //BOOST_ASSERT(mi.base.textwidth);
2182 // rebuild row cache
2187 width = redoParagraphs(ownerParagraphs().begin(), ownerParagraphs().end());
2190 dim.asc = firstRow()->ascent_of_text();
2191 dim.des = height - dim.asc;
2192 dim.wid = std::max(mi.base.textwidth, int(width));