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"
29 #include "lyxlength.h"
32 #include "lyxrow_funcs.h"
33 #include "paragraph_funcs.h"
34 #include "ParagraphParameters.h"
35 #include "rowpainter.h"
36 #include "text_funcs.h"
37 #include "undo_funcs.h"
39 #include "WordLangTuple.h"
41 #include "frontends/font_metrics.h"
42 #include "frontends/LyXView.h"
44 #include "insets/insettext.h"
46 #include "support/lstrings.h"
47 #include "support/textutils.h"
49 using bv_funcs::number;
52 using lyx::word_location;
54 using lyx::support::contains;
55 using lyx::support::lowercase;
56 using lyx::support::uppercase;
62 /// top, right, bottom pixel margin
63 extern int const PAPER_MARGIN = 20;
64 /// margin for changebar
65 extern int const CHANGEBAR_MARGIN = 10;
67 extern int const LEFT_MARGIN = PAPER_MARGIN + CHANGEBAR_MARGIN;
71 int bibitemMaxWidth(BufferView *, LyXFont const &);
74 BufferView * LyXText::bv()
76 BOOST_ASSERT(bv_owner != 0);
81 BufferView * LyXText::bv() const
83 BOOST_ASSERT(bv_owner != 0);
88 void LyXText::updateRowPositions()
90 ParagraphList::iterator pit = ownerParagraphs().begin();
91 ParagraphList::iterator end = ownerParagraphs().end();
92 for (height = 0; pit != end; ++pit) {
93 RowList::iterator rit = pit->rows.begin();
94 RowList::iterator rend = pit->rows.end();
95 for ( ; rit != rend ; ++rit) {
97 height += rit->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(ParagraphList::iterator pit,
270 Buffer const & buf, RowList::iterator row) const
272 bidi_same_direction = true;
273 if (!lyxrc.rtl_support) {
278 InsetOld * inset = pit->inInset();
279 if (inset && inset->owner() &&
280 inset->owner()->lyxCode() == InsetOld::ERT_CODE) {
285 bidi_start = row->pos();
286 bidi_end = lastPos(*pit, 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();
309 pit->isRightToLeftPar(bufparams);
313 pos_type const body_pos = pit->beginningOfBody();
315 for (pos_type lpos = bidi_start; lpos <= bidi_end; ++lpos) {
316 bool is_space = pit->isLineSeparator(lpos);
318 (is_space && lpos + 1 <= bidi_end &&
319 !pit->isLineSeparator(lpos + 1) &&
320 !pit->isNewline(lpos + 1))
322 LyXFont font = pit->getFontSettings(bufparams, pos);
323 if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() &&
324 font.number() == LyXFont::ON &&
325 pit->getFontSettings(bufparams, lpos - 1).number()
327 font = pit->getFontSettings(bufparams, lpos);
332 bool new_rtl = font.isVisibleRightToLeft();
333 bool new_rtl0 = font.isRightToLeft();
336 if (lpos == body_pos - 1
337 && row->pos() < body_pos - 1
339 new_level = (rtl_par) ? 1 : 0;
340 new_rtl = new_rtl0 = rtl_par;
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. Do not care about footnotes, they
547 // are *NOT* allowed in the LaTeX realisation of this layout.
549 // find the first row of this paragraph
550 RowList::iterator rit = pit->rows.begin();
551 RowList::iterator end = pit->rows.end();
552 int minfill = rit->fill();
553 for ( ; rit != end; ++rit)
554 if (rit->fill() < minfill)
555 minfill = rit->fill();
557 x += font_metrics::signedWidth(layout->leftmargin,
558 tclass.defaultfont());
564 if (workWidth() > 0 && !pit->params().leftIndent().zero()) {
565 LyXLength const len = pit->params().leftIndent();
566 int const tw = inset_owner ?
567 inset_owner->latexTextWidth(bv()) : workWidth();
568 x += len.inPixels(tw);
573 if (pit->params().align() == LYX_ALIGN_LAYOUT)
574 align = layout->align;
576 align = pit->params().align();
578 // set the correct parindent
579 if (row.pos() == 0) {
580 if ((layout->labeltype == LABEL_NO_LABEL
581 || layout->labeltype == LABEL_TOP_ENVIRONMENT
582 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
583 || (layout->labeltype == LABEL_STATIC
584 && layout->latextype == LATEX_ENVIRONMENT
585 && !isFirstInSequence(pit, ownerParagraphs())))
586 && align == LYX_ALIGN_BLOCK
587 && !pit->params().noindent()
588 // in tabulars and ert paragraphs are never indented!
589 && (!pit->inInset() || !pit->inInset()->owner() ||
590 (pit->inInset()->owner()->lyxCode() != InsetOld::TABULAR_CODE &&
591 pit->inInset()->owner()->lyxCode() != InsetOld::ERT_CODE))
592 && (pit->layout() != tclass.defaultLayout() ||
593 bv()->buffer()->params().paragraph_separation ==
594 BufferParams::PARSEP_INDENT)) {
595 x += font_metrics::signedWidth(parindent,
596 tclass.defaultfont());
597 } else if (layout->labeltype == LABEL_BIBLIO) {
598 // ale970405 Right width for bibitems
599 x += bibitemMaxWidth(bv(), tclass.defaultfont());
607 int LyXText::rightMargin(ParagraphList::iterator pit,
608 Buffer const & buf, Row const &) const
610 LyXTextClass const & tclass = buf.params().getLyXTextClass();
611 LyXLayout_ptr const & layout = pit->layout();
614 + font_metrics::signedWidth(tclass.rightmargin(),
615 tclass.defaultfont());
616 + font_metrics::signedWidth(layout->rightmargin,
617 tclass.defaultfont())
618 * 4 / (pit->getDepth() + 4);
622 int LyXText::labelEnd(ParagraphList::iterator pit, Row const & row) const
624 if (pit->layout()->margintype == MARGIN_MANUAL) {
626 tmprow.pos(pit->size());
627 // return the beginning of the body
628 return leftMargin(pit, tmprow);
631 // LabelEnd is only needed if the layout
632 // fills a flushleft label.
639 // this needs special handling - only newlines count as a break point
640 pos_type addressBreakPoint(pos_type i, Paragraph const & par)
642 for (; i < par.size(); ++i) {
643 if (par.isNewline(i))
653 pos_type LyXText::rowBreakPoint(ParagraphList::iterator pit,
654 Row const & row) const
656 // maximum pixel width of a row.
657 int width = workWidth()
658 - rightMargin(pit, *bv()->buffer(), row);
660 // inset->textWidth() returns -1 via workWidth(),
665 LyXLayout_ptr const & layout = pit->layout();
667 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX)
668 return addressBreakPoint(row.pos(), *pit);
670 pos_type const pos = row.pos();
671 pos_type const body_pos = pit->beginningOfBody();
672 pos_type const last = pit->size();
673 pos_type point = last;
678 // Now we iterate through until we reach the right margin
679 // or the end of the par, then choose the possible break
682 int const left = leftMargin(pit, row);
685 // pixel width since last breakpoint
690 // We re-use the font resolution for the entire font span when possible
691 LyXFont font = getFont(pit, i);
692 lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
694 for (; i < last; ++i) {
695 if (pit->isNewline(i)) {
700 char const c = pit->getChar(i);
701 if (i > endPosOfFontSpan) {
702 font = getFont(pit, i);
703 endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
708 // add the auto-hfill from label end to the body
709 if (body_pos && i == body_pos) {
710 thiswidth = font_metrics::width(layout->labelsep, getLabelFont(pit));
711 if (pit->isLineSeparator(i - 1))
712 thiswidth -= singleWidth(pit, i - 1);
713 int left_margin = labelEnd(pit, row);
714 if (thiswidth + x < left_margin)
715 thiswidth = left_margin - x;
716 thiswidth += singleWidth(pit, i, c, font);
718 thiswidth = singleWidth(pit, i, c, font);
722 chunkwidth += thiswidth;
724 InsetOld * in = pit->isInset(i) ? pit->getInset(i) : 0;
726 // break before a character that will fall off
727 // the right of the row
729 // if no break before, break here
730 if (point == last || chunkwidth >= (width - left)) {
739 if (!in || in->isChar()) {
740 // some insets are line separators too
741 if (pit->isLineSeparator(i)) {
751 if (point == last && x >= width) {
752 // didn't find one, break at the point we reached the edge
754 } else if (i == last && x < width) {
755 // found one, but we fell off the end of the par, so prefer
760 // manual labels cannot be broken in LaTeX. But we
761 // want to make our on-screen rendering of footnotes
763 if (body_pos && point < body_pos)
764 point = body_pos - 1;
770 // returns the minimum space a row needs on the screen in pixel
771 int LyXText::fill(ParagraphList::iterator pit,
772 RowList::iterator row, int paper_width) const
778 // get the pure distance
779 pos_type const last = lastPos(*pit, row);
781 LyXLayout_ptr const & layout = pit->layout();
783 // special handling of the right address boxes
784 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
785 int const tmpfill = row->fill();
786 row->fill(0); // the minfill in MarginLeft()
787 w = leftMargin(pit, *row);
790 w = leftMargin(pit, *row);
792 pos_type const body_pos = pit->beginningOfBody();
793 pos_type i = row->pos();
795 if (! pit->empty() && i <= last) {
796 // We re-use the font resolution for the entire span when possible
797 LyXFont font = getFont(pit, i);
798 lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
800 if (body_pos > 0 && i == body_pos) {
801 w += font_metrics::width(layout->labelsep, getLabelFont(pit));
802 if (pit->isLineSeparator(i - 1))
803 w -= singleWidth(pit, i - 1);
804 int left_margin = labelEnd(pit, *row);
808 char const c = pit->getChar(i);
809 if (IsPrintable(c) && i > endPosOfFontSpan) {
810 // We need to get the next font
811 font = getFont(pit, i);
812 endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
814 w += singleWidth(pit, i, c, font);
818 if (body_pos > 0 && body_pos > last) {
819 w += font_metrics::width(layout->labelsep, getLabelFont(pit));
820 if (last >= 0 && pit->isLineSeparator(last))
821 w -= singleWidth(pit, last);
822 int const left_margin = labelEnd(pit, *row);
827 int const fill = paper_width - w - rightMargin(pit, *bv()->buffer(), *row);
829 // If this case happens, it means that our calculation
830 // of the widths of the chars when we do rowBreakPoint()
831 // went wrong for some reason. Typically in list bodies.
832 // Things just about hobble on anyway, though you'll end
833 // up with a "fill_separator" less than zero, which corresponds
834 // to inter-word spacing being too small. Hopefully this problem
835 // will die when the label hacks die.
836 if (lyxerr.debugging() && fill < 0) {
837 lyxerr[Debug::GUI] << "Eek, fill() was < 0: " << fill
838 << " w " << w << " paper_width " << paper_width
839 << " right margin " << rightMargin(pit, *bv()->buffer(), *row) << endl;
845 // returns the minimum space a manual label needs on the screen in pixel
846 int LyXText::labelFill(ParagraphList::iterator pit, Row const & row) const
848 pos_type last = pit->beginningOfBody();
850 BOOST_ASSERT(last > 0);
852 // -1 because a label ends either with a space that is in the label,
853 // or with the beginning of a footnote that is outside the label.
856 // a separator at this end does not count
857 if (pit->isLineSeparator(last))
861 pos_type i = row.pos();
863 w += singleWidth(pit, i);
868 string const & labwidstr = pit->params().labelWidthString();
869 if (!labwidstr.empty()) {
870 LyXFont const labfont = getLabelFont(pit);
871 int const labwidth = font_metrics::width(labwidstr, labfont);
872 fill = max(labwidth - w, 0);
879 LColor::color LyXText::backgroundColor() const
882 return inset_owner->backgroundColor();
884 return LColor::background;
888 void LyXText::setHeightOfRow(ParagraphList::iterator pit, RowList::iterator rit)
890 // get the maximum ascent and the maximum descent
891 double layoutasc = 0;
892 double layoutdesc = 0;
895 // ok, let us initialize the maxasc and maxdesc value.
896 // Only the fontsize count. The other properties
897 // are taken from the layoutfont. Nicer on the screen :)
898 LyXLayout_ptr const & layout = pit->layout();
900 // as max get the first character of this row then it can increase but not
901 // decrease the height. Just some point to start with so we don't have to
902 // do the assignment below too often.
903 LyXFont font = getFont(pit, rit->pos());
904 LyXFont::FONT_SIZE const tmpsize = font.size();
905 font = getLayoutFont(pit);
906 LyXFont::FONT_SIZE const size = font.size();
907 font.setSize(tmpsize);
909 LyXFont labelfont = getLabelFont(pit);
911 double spacing_val = 1.0;
912 if (!pit->params().spacing().isDefault())
913 spacing_val = pit->params().spacing().getValue();
915 spacing_val = bv()->buffer()->params().spacing().getValue();
916 //lyxerr << "spacing_val = " << spacing_val << endl;
918 int maxasc = int(font_metrics::maxAscent(font) *
919 layout->spacing.getValue() * spacing_val);
920 int maxdesc = int(font_metrics::maxDescent(font) *
921 layout->spacing.getValue() * spacing_val);
923 pos_type const pos_end = lastPos(*pit, rit);
928 // We re-use the font resolution for the entire font span when possible
929 LyXFont font = getFont(pit, rit->pos());
930 lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(rit->pos());
933 Paragraph const & par = *pit;
935 // Check if any insets are larger
936 for (pos_type pos = rit->pos(); pos <= pos_end; ++pos) {
937 // Manual inlined optimised version of common case of
938 // "maxwidth += singleWidth(pit, pos);"
939 char const c = par.getChar(pos);
941 if (IsPrintable(c)) {
942 if (pos > endPosOfFontSpan) {
943 // We need to get the next font
944 font = getFont(pit, pos);
945 endPosOfFontSpan = par.getEndPosOfFontSpan(pos);
947 if (! font.language()->RightToLeft()) {
948 maxwidth += font_metrics::width(c, font);
950 // Fall-back to normal case
951 maxwidth += singleWidth(pit, pos, c, font);
952 // And flush font cache
953 endPosOfFontSpan = 0;
956 // Special handling of insets - are any larger?
957 if (par.isInset(pos)) {
958 InsetOld const * tmpinset = par.getInset(pos);
960 maxwidth += tmpinset->width();
961 maxasc = max(maxasc, tmpinset->ascent());
962 maxdesc = max(maxdesc, tmpinset->descent());
965 // Fall-back to normal case
966 maxwidth += singleWidth(pit, pos, c, font);
967 // And flush font cache
968 endPosOfFontSpan = 0;
974 // Check if any custom fonts are larger (Asger)
975 // This is not completely correct, but we can live with the small,
976 // cosmetic error for now.
977 LyXFont::FONT_SIZE maxsize =
978 pit->highestFontInRange(rit->pos(), pos_end, size);
979 if (maxsize > font.size()) {
980 font.setSize(maxsize);
981 maxasc = max(maxasc, font_metrics::maxAscent(font));
982 maxdesc = max(maxdesc, font_metrics::maxDescent(font));
985 // This is nicer with box insets:
989 rit->ascent_of_text(maxasc);
993 BufferParams const & bufparams = bv()->buffer()->params();
994 // some parksips VERY EASY IMPLEMENTATION
995 if (bv()->buffer()->params().paragraph_separation ==
996 BufferParams::PARSEP_SKIP)
998 if (layout->isParagraph()
999 && pit->getDepth() == 0
1000 && pit != ownerParagraphs().begin())
1002 maxasc += bufparams.getDefSkip().inPixels(*bv());
1003 } else if (pit != ownerParagraphs().begin() &&
1004 boost::prior(pit)->layout()->isParagraph() &&
1005 boost::prior(pit)->getDepth() == 0)
1007 // is it right to use defskip here too? (AS)
1008 maxasc += bufparams.getDefSkip().inPixels(*bv());
1013 if (pit == ownerParagraphs().begin() && !isInInset())
1014 maxasc += PAPER_MARGIN;
1016 // add the vertical spaces, that the user added
1017 maxasc += getLengthMarkerHeight(*bv(), pit->params().spaceTop());
1019 // do not forget the DTP-lines!
1020 // there height depends on the font of the nearest character
1021 if (pit->params().lineTop())
1023 maxasc += 2 * font_metrics::ascent('x', getFont(pit, 0));
1024 // and now the pagebreaks
1025 if (pit->params().pagebreakTop())
1026 maxasc += 3 * defaultRowHeight();
1028 if (pit->params().startOfAppendix())
1029 maxasc += 3 * defaultRowHeight();
1031 // This is special code for the chapter, since the label of this
1032 // layout is printed in an extra row
1033 if (layout->counter == "chapter" && bufparams.secnumdepth >= 0) {
1034 float spacing_val = 1.0;
1035 if (!pit->params().spacing().isDefault()) {
1036 spacing_val = pit->params().spacing().getValue();
1038 spacing_val = bufparams.spacing().getValue();
1041 labeladdon = int(font_metrics::maxDescent(labelfont) *
1042 layout->spacing.getValue() *
1044 + int(font_metrics::maxAscent(labelfont) *
1045 layout->spacing.getValue() *
1049 // special code for the top label
1050 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
1051 || layout->labeltype == LABEL_BIBLIO
1052 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1053 && isFirstInSequence(pit, ownerParagraphs())
1054 && !pit->getLabelstring().empty())
1056 float spacing_val = 1.0;
1057 if (!pit->params().spacing().isDefault()) {
1058 spacing_val = pit->params().spacing().getValue();
1060 spacing_val = bufparams.spacing().getValue();
1064 (font_metrics::maxAscent(labelfont) +
1065 font_metrics::maxDescent(labelfont)) *
1066 layout->spacing.getValue() *
1068 + layout->topsep * defaultRowHeight()
1069 + layout->labelbottomsep * defaultRowHeight());
1072 // And now the layout spaces, for example before and after
1073 // a section, or between the items of a itemize or enumerate
1076 if (!pit->params().pagebreakTop()) {
1077 ParagraphList::iterator prev =
1078 depthHook(pit, ownerParagraphs(),
1080 if (prev != pit && prev->layout() == layout &&
1081 prev->getDepth() == pit->getDepth() &&
1082 prev->getLabelWidthString() == pit->getLabelWidthString())
1084 layoutasc = (layout->itemsep * defaultRowHeight());
1085 } else if (rit != firstRow()) {
1086 tmptop = layout->topsep;
1088 //if (boost::prior(pit)->getDepth() >= pit->getDepth())
1089 // tmptop -= getPar(previousRow(rit))->layout()->bottomsep;
1092 layoutasc = (tmptop * defaultRowHeight());
1093 } else if (pit->params().lineTop()) {
1094 tmptop = layout->topsep;
1097 layoutasc = (tmptop * defaultRowHeight());
1100 prev = outerHook(pit, ownerParagraphs());
1101 if (prev != ownerParagraphs().end()) {
1102 maxasc += int(prev->layout()->parsep * defaultRowHeight());
1103 } else if (pit != ownerParagraphs().begin()) {
1104 ParagraphList::iterator prior_pit = boost::prior(pit);
1105 if (prior_pit->getDepth() != 0 ||
1106 prior_pit->layout() == layout) {
1107 maxasc += int(layout->parsep * defaultRowHeight());
1113 // is it a bottom line?
1114 if (boost::next(rit) == pit->rows.end()) {
1115 // the bottom margin
1116 ParagraphList::iterator nextpit = boost::next(pit);
1117 if (nextpit == ownerParagraphs().end() && !isInInset())
1118 maxdesc += PAPER_MARGIN;
1120 // add the vertical spaces, that the user added
1121 maxdesc += getLengthMarkerHeight(*bv(), pit->params().spaceBottom());
1123 // do not forget the DTP-lines!
1124 // there height depends on the font of the nearest character
1125 if (pit->params().lineBottom())
1126 maxdesc += 2 * font_metrics::ascent('x',
1127 getFont(pit, max(pos_type(0), pit->size() - 1)));
1129 // and now the pagebreaks
1130 if (pit->params().pagebreakBottom())
1131 maxdesc += 3 * defaultRowHeight();
1133 // and now the layout spaces, for example before and after
1134 // a section, or between the items of a itemize or enumerate
1136 if (!pit->params().pagebreakBottom()
1137 && nextpit != ownerParagraphs().end()) {
1138 ParagraphList::iterator comparepit = pit;
1142 if (comparepit->getDepth() > nextpit->getDepth()) {
1143 usual = (comparepit->layout()->bottomsep * defaultRowHeight());
1144 comparepit = depthHook(comparepit, ownerParagraphs(), nextpit->getDepth());
1145 if (comparepit->layout()!= nextpit->layout()
1146 || nextpit->getLabelWidthString() !=
1147 comparepit->getLabelWidthString())
1149 unusual = (comparepit->layout()->bottomsep * defaultRowHeight());
1151 if (unusual > usual)
1152 layoutdesc = unusual;
1155 } else if (comparepit->getDepth() == nextpit->getDepth()) {
1157 if (comparepit->layout() != nextpit->layout()
1158 || nextpit->getLabelWidthString() !=
1159 comparepit->getLabelWidthString())
1160 layoutdesc = int(comparepit->layout()->bottomsep * defaultRowHeight());
1165 // incalculate the layout spaces
1166 maxasc += int(layoutasc * 2 / (2 + pit->getDepth()));
1167 maxdesc += int(layoutdesc * 2 / (2 + pit->getDepth()));
1169 rit->height(maxasc + maxdesc + labeladdon);
1170 rit->baseline(maxasc + labeladdon);
1171 rit->top_of_text(rit->baseline() - font_metrics::maxAscent(font));
1174 rit->width(int(maxwidth + x));
1176 width = max(0, workWidth());
1177 RowList::iterator rit = firstRow();
1178 RowList::iterator end = endRow();
1179 ParagraphList::iterator it = ownerParagraphs().begin();
1180 while (rit != end) {
1181 if (rit->width() > width)
1182 width = rit->width();
1189 void LyXText::breakParagraph(ParagraphList & paragraphs, char keep_layout)
1191 // allow only if at start or end, or all previous is new text
1192 if (cursor.pos() && cursor.pos() != cursor.par()->size()
1193 && cursor.par()->isChangeEdited(0, cursor.pos()))
1196 LyXTextClass const & tclass =
1197 bv()->buffer()->params().getLyXTextClass();
1198 LyXLayout_ptr const & layout = cursor.par()->layout();
1200 // this is only allowed, if the current paragraph is not empty or caption
1201 // and if it has not the keepempty flag active
1202 if (cursor.par()->empty() && !cursor.par()->allowEmpty()
1203 && layout->labeltype != LABEL_SENSITIVE)
1206 recordUndo(bv(), Undo::ATOMIC, cursor.par());
1208 // Always break behind a space
1210 // It is better to erase the space (Dekel)
1211 if (cursor.pos() < cursor.par()->size()
1212 && cursor.par()->isLineSeparator(cursor.pos()))
1213 cursor.par()->erase(cursor.pos());
1215 // break the paragraph
1219 keep_layout = layout->isEnvironment();
1221 // we need to set this before we insert the paragraph. IMO the
1222 // breakParagraph call should return a bool if it inserts the
1223 // paragraph before or behind and we should react on that one
1224 // but we can fix this in 1.3.0 (Jug 20020509)
1225 bool const isempty = (cursor.par()->allowEmpty() && cursor.par()->empty());
1226 ::breakParagraph(bv()->buffer()->params(), paragraphs, cursor.par(),
1227 cursor.pos(), keep_layout);
1229 #warning Trouble Point! (Lgb)
1230 // When ::breakParagraph is called from within an inset we must
1231 // ensure that the correct ParagraphList is used. Today that is not
1232 // the case and the Buffer::paragraphs is used. Not good. (Lgb)
1233 ParagraphList::iterator next_par = boost::next(cursor.par());
1235 // well this is the caption hack since one caption is really enough
1236 if (layout->labeltype == LABEL_SENSITIVE) {
1238 // set to standard-layout
1239 cursor.par()->applyLayout(tclass.defaultLayout());
1241 // set to standard-layout
1242 next_par->applyLayout(tclass.defaultLayout());
1245 // if the cursor is at the beginning of a row without prior newline,
1247 // This touches only the screen-update. Otherwise we would may have
1248 // an empty row on the screen
1249 if (cursor.pos() && cursorRow()->pos() == cursor.pos()
1250 && !cursor.par()->isNewline(cursor.pos() - 1))
1255 while (!next_par->empty() && next_par->isNewline(0))
1259 redoParagraph(cursor.par());
1260 redoParagraph(next_par);
1262 // This check is necessary. Otherwise the new empty paragraph will
1263 // be deleted automatically. And it is more friendly for the user!
1264 if (cursor.pos() || isempty)
1265 setCursor(next_par, 0);
1267 setCursor(cursor.par(), 0);
1271 // convenience function
1272 void LyXText::redoParagraph()
1275 redoParagraph(cursor.par());
1276 setCursorIntern(cursor.par(), cursor.pos());
1280 // insert a character, moves all the following breaks in the
1281 // same Paragraph one to the right and make a rebreak
1282 void LyXText::insertChar(char c)
1284 recordUndo(bv(), Undo::INSERT, cursor.par());
1286 // When the free-spacing option is set for the current layout,
1287 // disable the double-space checking
1289 bool const freeSpacing = cursor.par()->layout()->free_spacing ||
1290 cursor.par()->isFreeSpacing();
1292 if (lyxrc.auto_number) {
1293 static string const number_operators = "+-/*";
1294 static string const number_unary_operators = "+-";
1295 static string const number_seperators = ".,:";
1297 if (current_font.number() == LyXFont::ON) {
1298 if (!IsDigit(c) && !contains(number_operators, c) &&
1299 !(contains(number_seperators, c) &&
1300 cursor.pos() >= 1 &&
1301 cursor.pos() < cursor.par()->size() &&
1302 getFont(cursor.par(), cursor.pos()).number() == LyXFont::ON &&
1303 getFont(cursor.par(), cursor.pos() - 1).number() == LyXFont::ON)
1305 number(bv()); // Set current_font.number to OFF
1306 } else if (IsDigit(c) &&
1307 real_current_font.isVisibleRightToLeft()) {
1308 number(bv()); // Set current_font.number to ON
1310 if (cursor.pos() > 0) {
1311 char const c = cursor.par()->getChar(cursor.pos() - 1);
1312 if (contains(number_unary_operators, c) &&
1313 (cursor.pos() == 1 ||
1314 cursor.par()->isSeparator(cursor.pos() - 2) ||
1315 cursor.par()->isNewline(cursor.pos() - 2))
1321 } else if (contains(number_seperators, c) &&
1322 cursor.pos() >= 2 &&
1325 cursor.pos() - 2).number() == LyXFont::ON) {
1336 // First check, if there will be two blanks together or a blank at
1337 // the beginning of a paragraph.
1338 // I decided to handle blanks like normal characters, the main
1339 // difference are the special checks when calculating the row.fill
1340 // (blank does not count at the end of a row) and the check here
1342 // The bug is triggered when we type in a description environment:
1343 // The current_font is not changed when we go from label to main text
1344 // and it should (along with realtmpfont) when we type the space.
1345 // CHECK There is a bug here! (Asger)
1347 // store the current font. This is because of the use of cursor
1348 // movements. The moving cursor would refresh the current font
1349 LyXFont realtmpfont = real_current_font;
1350 LyXFont rawtmpfont = current_font;
1352 if (!freeSpacing && IsLineSeparatorChar(c)) {
1353 if ((cursor.pos() > 0
1354 && cursor.par()->isLineSeparator(cursor.pos() - 1))
1355 || (cursor.pos() > 0
1356 && cursor.par()->isNewline(cursor.pos() - 1))
1357 || (cursor.pos() == 0)) {
1358 static bool sent_space_message = false;
1359 if (!sent_space_message) {
1360 if (cursor.pos() == 0)
1361 bv()->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1363 bv()->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1364 sent_space_message = true;
1371 // Here case LyXText::InsertInset already inserted the character
1372 if (c != Paragraph::META_INSET)
1373 cursor.par()->insertChar(cursor.pos(), c);
1375 setCharFont(cursor.par(), cursor.pos(), rawtmpfont);
1377 current_font = rawtmpfont;
1378 real_current_font = realtmpfont;
1379 redoParagraph(cursor.par());
1380 setCursor(cursor.par(), cursor.pos() + 1, false, cursor.boundary());
1386 void LyXText::charInserted()
1388 // Here we could call finishUndo for every 20 characters inserted.
1389 // This is from my experience how emacs does it. (Lgb)
1390 static unsigned int counter;
1400 void LyXText::prepareToPrint(ParagraphList::iterator pit,
1401 RowList::iterator const rit) const
1403 double w = rit->fill();
1404 double fill_hfill = 0;
1405 double fill_label_hfill = 0;
1406 double fill_separator = 0;
1410 pit->isRightToLeftPar(bv()->buffer()->params());
1412 x = workWidth() > 0 ? rightMargin(pit, *bv()->buffer(), *rit) : 0;
1414 x = workWidth() > 0 ? leftMargin(pit, *rit) : 0;
1416 // is there a manual margin with a manual label
1417 LyXLayout_ptr const & layout = pit->layout();
1419 if (layout->margintype == MARGIN_MANUAL
1420 && layout->labeltype == LABEL_MANUAL) {
1421 /// We might have real hfills in the label part
1422 int nlh = numberOfLabelHfills(*pit, rit);
1424 // A manual label par (e.g. List) has an auto-hfill
1425 // between the label text and the body of the
1427 // But we don't want to do this auto hfill if the par
1432 if (nlh && !pit->getLabelWidthString().empty()) {
1433 fill_label_hfill = labelFill(pit, *rit) / double(nlh);
1437 // are there any hfills in the row?
1438 int const nh = numberOfHfills(*pit, rit);
1442 fill_hfill = w / nh;
1443 // we don't have to look at the alignment if it is ALIGN_LEFT and
1444 // if the row is already larger then the permitted width as then
1445 // we force the LEFT_ALIGN'edness!
1446 } else if (int(rit->width()) < workWidth()) {
1447 // is it block, flushleft or flushright?
1448 // set x how you need it
1450 if (pit->params().align() == LYX_ALIGN_LAYOUT) {
1451 align = layout->align;
1453 align = pit->params().align();
1455 InsetOld * inset = 0;
1456 // ERT insets should always be LEFT ALIGNED on screen
1457 inset = pit->inInset();
1458 if (inset && inset->owner() &&
1459 inset->owner()->lyxCode() == InsetOld::ERT_CODE)
1461 align = LYX_ALIGN_LEFT;
1465 case LYX_ALIGN_BLOCK:
1467 int const ns = numberOfSeparators(*pit, rit);
1468 RowList::iterator next_row = boost::next(rit);
1470 && next_row != pit->rows.end()
1471 && !pit->isNewline(next_row->pos() - 1)
1473 fill_separator = w / ns;
1474 } else if (is_rtl) {
1479 case LYX_ALIGN_RIGHT:
1482 case LYX_ALIGN_CENTER:
1488 computeBidiTables(pit, *bv()->buffer(), rit);
1490 pos_type body_pos = pit->beginningOfBody();
1491 pos_type last = lastPos(*pit, rit);
1494 (body_pos - 1 > last ||
1495 !pit->isLineSeparator(body_pos - 1))) {
1496 x += font_metrics::width(layout->labelsep, getLabelFont(pit));
1497 if (body_pos - 1 <= last)
1498 x += fill_label_hfill;
1502 rit->fill_hfill(fill_hfill);
1503 rit->fill_label_hfill(fill_label_hfill);
1504 rit->fill_separator(fill_separator);
1509 // important for the screen
1512 // the cursor set functions have a special mechanism. When they
1513 // realize, that you left an empty paragraph, they will delete it.
1514 // They also delete the corresponding row
1516 void LyXText::cursorRightOneWord()
1518 ::cursorRightOneWord(cursor, ownerParagraphs());
1519 setCursor(cursor.par(), cursor.pos());
1523 // Skip initial whitespace at end of word and move cursor to *start*
1524 // of prior word, not to end of next prior word.
1525 void LyXText::cursorLeftOneWord()
1527 LyXCursor tmpcursor = cursor;
1528 ::cursorLeftOneWord(tmpcursor, ownerParagraphs());
1529 setCursor(tmpcursor.par(), tmpcursor.pos());
1533 void LyXText::selectWord(word_location loc)
1535 LyXCursor from = cursor;
1537 ::getWord(from, to, loc, ownerParagraphs());
1539 setCursor(from.par(), from.pos());
1542 selection.cursor = cursor;
1543 setCursor(to.par(), to.pos());
1548 // Select the word currently under the cursor when no
1549 // selection is currently set
1550 bool LyXText::selectWordWhenUnderCursor(word_location loc)
1552 if (!selection.set()) {
1554 return selection.set();
1560 void LyXText::acceptChange()
1562 if (!selection.set() && cursor.par()->size())
1565 if (selection.start.par() == selection.end.par()) {
1566 LyXCursor & startc = selection.start;
1567 LyXCursor & endc = selection.end;
1568 recordUndo(bv(), Undo::INSERT, startc.par());
1569 startc.par()->acceptChange(startc.pos(), endc.pos());
1572 redoParagraph(startc.par());
1573 setCursorIntern(startc.par(), 0);
1575 #warning handle multi par selection
1579 void LyXText::rejectChange()
1581 if (!selection.set() && cursor.par()->size())
1584 if (selection.start.par() == selection.end.par()) {
1585 LyXCursor & startc = selection.start;
1586 LyXCursor & endc = selection.end;
1587 recordUndo(bv(), Undo::INSERT, startc.par());
1588 startc.par()->rejectChange(startc.pos(), endc.pos());
1591 redoParagraph(startc.par());
1592 setCursorIntern(startc.par(), 0);
1594 #warning handle multi par selection
1598 // This function is only used by the spellchecker for NextWord().
1599 // It doesn't handle LYX_ACCENTs and probably never will.
1601 LyXText::selectNextWordToSpellcheck(float & value)
1603 if (the_locking_inset) {
1604 WordLangTuple word = the_locking_inset->selectNextWordToSpellcheck(bv(), value);
1605 if (!word.word().empty()) {
1606 value += float(cursor.y());
1607 value /= float(height);
1610 // we have to go on checking so move cursor to the next char
1611 if (cursor.pos() == cursor.par()->size()) {
1612 if (boost::next(cursor.par()) == ownerParagraphs().end())
1614 cursor.par(boost::next(cursor.par()));
1617 cursor.pos(cursor.pos() + 1);
1619 ParagraphList::iterator tmppit = cursor.par();
1621 // If this is not the very first word, skip rest of
1622 // current word because we are probably in the middle
1623 // of a word if there is text here.
1624 if (cursor.pos() || cursor.par() != ownerParagraphs().begin()) {
1625 while (cursor.pos() < cursor.par()->size()
1626 && cursor.par()->isLetter(cursor.pos()))
1627 cursor.pos(cursor.pos() + 1);
1630 // Now, skip until we have real text (will jump paragraphs)
1632 ParagraphList::iterator cpit = cursor.par();
1633 pos_type const cpos(cursor.pos());
1635 if (cpos == cpit->size()) {
1636 if (boost::next(cpit) != ownerParagraphs().end()) {
1637 cursor.par(boost::next(cpit));
1644 bool const is_good_inset = cpit->isInset(cpos)
1645 && cpit->getInset(cpos)->allowSpellcheck();
1647 if (!isDeletedText(*cpit, cpos)
1648 && (is_good_inset || cpit->isLetter(cpos)))
1651 cursor.pos(cpos + 1);
1654 // now check if we hit an inset so it has to be a inset containing text!
1655 if (cursor.pos() < cursor.par()->size() &&
1656 cursor.par()->isInset(cursor.pos())) {
1658 FuncRequest cmd(bv(), LFUN_INSET_EDIT, "left");
1659 cursor.par()->getInset(cursor.pos())->localDispatch(cmd);
1660 // now call us again to do the above trick
1661 // but obviously we have to start from down below ;)
1662 return bv()->text->selectNextWordToSpellcheck(value);
1665 // Update the value if we changed paragraphs
1666 if (cursor.par() != tmppit) {
1667 setCursor(cursor.par(), cursor.pos());
1668 value = float(cursor.y())/float(height);
1671 // Start the selection from here
1672 selection.cursor = cursor;
1674 string lang_code = getFont(cursor.par(), cursor.pos()).language()->code();
1675 // and find the end of the word (insets like optional hyphens
1676 // and ligature break are part of a word)
1677 while (cursor.pos() < cursor.par()->size()
1678 && cursor.par()->isLetter(cursor.pos())
1679 && !isDeletedText(*cursor.par(), cursor.pos()))
1680 cursor.pos(cursor.pos() + 1);
1682 // Finally, we copy the word to a string and return it
1684 if (selection.cursor.pos() < cursor.pos()) {
1686 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
1687 if (!cursor.par()->isInset(i))
1688 str += cursor.par()->getChar(i);
1691 return WordLangTuple(str, lang_code);
1695 // This one is also only for the spellchecker
1696 void LyXText::selectSelectedWord()
1698 if (the_locking_inset) {
1699 the_locking_inset->selectSelectedWord(bv());
1702 // move cursor to the beginning
1703 setCursor(selection.cursor.par(), selection.cursor.pos());
1705 // set the sel cursor
1706 selection.cursor = cursor;
1708 // now find the end of the word
1709 while (cursor.pos() < cursor.par()->size()
1710 && cursor.par()->isLetter(cursor.pos()))
1711 cursor.pos(cursor.pos() + 1);
1713 setCursor(cursor.par(), cursor.pos());
1715 // finally set the selection
1720 // Delete from cursor up to the end of the current or next word.
1721 void LyXText::deleteWordForward()
1723 if (cursor.par()->empty())
1726 LyXCursor tmpcursor = cursor;
1727 selection.set(true); // to avoid deletion
1728 cursorRightOneWord();
1729 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1730 selection.cursor = cursor;
1734 // Great, CutSelection() gets rid of multiple spaces.
1735 cutSelection(true, false);
1740 // Delete from cursor to start of current or prior word.
1741 void LyXText::deleteWordBackward()
1743 if (cursor.par()->empty())
1746 LyXCursor tmpcursor = cursor;
1747 selection.set(true); // to avoid deletion
1748 cursorLeftOneWord();
1749 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1750 selection.cursor = cursor;
1753 cutSelection(true, false);
1758 // Kill to end of line.
1759 void LyXText::deleteLineForward()
1761 if (cursor.par()->empty())
1762 // Paragraph is empty, so we just go to the right
1765 LyXCursor tmpcursor = cursor;
1766 // We can't store the row over a regular setCursor
1767 // so we set it to 0 and reset it afterwards.
1768 selection.set(true); // to avoid deletion
1770 setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
1771 selection.cursor = cursor;
1774 // What is this test for ??? (JMarc)
1775 if (!selection.set()) {
1776 deleteWordForward();
1778 cutSelection(true, false);
1784 void LyXText::changeCase(LyXText::TextCase action)
1789 if (selection.set()) {
1790 from = selection.start;
1794 ::getWord(from, to, lyx::PARTIAL_WORD, ownerParagraphs());
1795 setCursor(to.par(), to.pos() + 1);
1798 recordUndo(bv(), Undo::ATOMIC, from.par(), to.par());
1800 pos_type pos = from.pos();
1801 ParagraphList::iterator pit = from.par();
1803 while (pit != ownerParagraphs().end() &&
1804 (pos != to.pos() || pit != to.par())) {
1805 if (pos == pit->size()) {
1810 unsigned char c = pit->getChar(pos);
1811 if (!IsInsetChar(c)) {
1813 case text_lowercase:
1816 case text_capitalization:
1818 action = text_lowercase;
1820 case text_uppercase:
1826 pit->setChar(pos, c);
1832 void LyXText::Delete()
1834 // this is a very easy implementation
1836 LyXCursor old_cursor = cursor;
1837 int const old_cur_par_id = old_cursor.par()->id();
1838 int const old_cur_par_prev_id =
1839 (old_cursor.par() != ownerParagraphs().begin() ?
1840 boost::prior(old_cursor.par())->id() : -1);
1842 // just move to the right
1845 // CHECK Look at the comment here.
1846 // This check is not very good...
1847 // The cursorRightIntern calls DeleteEmptyParagrapgMechanism
1848 // and that can very well delete the par or par->previous in
1849 // old_cursor. Will a solution where we compare paragraph id's
1851 if ((cursor.par() != ownerParagraphs().begin() ? boost::prior(cursor.par())->id() : -1)
1852 == old_cur_par_prev_id
1853 && cursor.par()->id() != old_cur_par_id) {
1854 // delete-empty-paragraph-mechanism has done it
1858 // if you had success make a backspace
1859 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
1860 LyXCursor tmpcursor = cursor;
1861 // to make sure undo gets the right cursor position
1862 cursor = old_cursor;
1863 recordUndo(bv(), Undo::DELETE, cursor.par());
1870 void LyXText::backspace()
1872 // Get the font that is used to calculate the baselineskip
1873 pos_type lastpos = cursor.par()->size();
1875 if (cursor.pos() == 0) {
1876 // The cursor is at the beginning of a paragraph,
1877 // so the the backspace will collapse two paragraphs into one.
1879 // but it's not allowed unless it's new
1880 if (cursor.par()->isChangeEdited(0, cursor.par()->size()))
1883 // we may paste some paragraphs
1885 // is it an empty paragraph?
1888 || (lastpos == 1 && cursor.par()->isSeparator(0))) {
1889 // This is an empty paragraph and we delete it just
1890 // by moving the cursor one step
1891 // left and let the DeleteEmptyParagraphMechanism
1892 // handle the actual deletion of the paragraph.
1894 if (cursor.par() != ownerParagraphs().begin()) {
1895 ParagraphList::iterator tmppit = boost::prior(cursor.par());
1896 if (cursor.par()->layout() == tmppit->layout()
1897 && cursor.par()->getAlign() == tmppit->getAlign()) {
1898 // Inherit bottom DTD from the paragraph below.
1899 // (the one we are deleting)
1900 tmppit->params().lineBottom(cursor.par()->params().lineBottom());
1901 tmppit->params().spaceBottom(cursor.par()->params().spaceBottom());
1902 tmppit->params().pagebreakBottom(cursor.par()->params().pagebreakBottom());
1907 // the layout things can change the height of a row !
1913 if (cursor.par() != ownerParagraphs().begin()) {
1914 recordUndo(bv(), Undo::DELETE,
1915 boost::prior(cursor.par()),
1919 ParagraphList::iterator tmppit = cursor.par();
1920 // We used to do cursorLeftIntern() here, but it is
1921 // not a good idea since it triggers the auto-delete
1922 // mechanism. So we do a cursorLeftIntern()-lite,
1923 // without the dreaded mechanism. (JMarc)
1924 if (cursor.par() != ownerParagraphs().begin()) {
1925 // steps into the above paragraph.
1926 setCursorIntern(boost::prior(cursor.par()),
1927 boost::prior(cursor.par())->size(),
1931 // Pasting is not allowed, if the paragraphs have different
1932 // layout. I think it is a real bug of all other
1933 // word processors to allow it. It confuses the user.
1934 // Correction: Pasting is always allowed with standard-layout
1935 Buffer & buf = *bv()->buffer();
1936 BufferParams const & bufparams = buf.params();
1937 LyXTextClass const & tclass = bufparams.getLyXTextClass();
1939 if (cursor.par() != tmppit
1940 && (cursor.par()->layout() == tmppit->layout()
1941 || tmppit->layout() == tclass.defaultLayout())
1942 && cursor.par()->getAlign() == tmppit->getAlign()) {
1943 mergeParagraph(bufparams,
1944 buf.paragraphs(), cursor.par());
1946 if (cursor.pos() && cursor.par()->isSeparator(cursor.pos() - 1))
1947 cursor.pos(cursor.pos() - 1);
1949 // the row may have changed, block, hfills etc.
1951 setCursor(cursor.par(), cursor.pos(), false);
1954 // this is the code for a normal backspace, not pasting
1956 recordUndo(bv(), Undo::DELETE, cursor.par());
1957 // We used to do cursorLeftIntern() here, but it is
1958 // not a good idea since it triggers the auto-delete
1959 // mechanism. So we do a cursorLeftIntern()-lite,
1960 // without the dreaded mechanism. (JMarc)
1961 setCursorIntern(cursor.par(), cursor.pos() - 1,
1962 false, cursor.boundary());
1963 cursor.par()->erase(cursor.pos());
1966 lastpos = cursor.par()->size();
1967 if (cursor.pos() == lastpos)
1971 setCursor(cursor.par(), cursor.pos(), false, !cursor.boundary());
1975 RowList::iterator LyXText::cursorRow() const
1977 return getRow(cursor.par(), cursor.pos());
1981 RowList::iterator LyXText::getRow(LyXCursor const & cur) const
1983 return getRow(cur.par(), cur.pos());
1988 LyXText::getRow(ParagraphList::iterator pit, pos_type pos) const
1990 RowList::iterator rit = boost::prior(pit->rows.end());
1991 RowList::iterator const begin = pit->rows.begin();
1993 while (rit != begin && rit->pos() > pos)
2000 // returns pointer to some fancy row 'below' specified row
2001 RowList::iterator LyXText::cursorIRow() const
2003 return getRow(cursor.par(), cursor.pos());
2007 RowList::iterator LyXText::getRowNearY(int y,
2008 ParagraphList::iterator & pit) const
2010 //lyxerr << "getRowNearY: y " << y << endl;
2012 pit = boost::prior(ownerParagraphs().end());
2014 RowList::iterator rit = lastRow();
2015 RowList::iterator rbegin = firstRow();
2017 while (rit != rbegin && static_cast<int>(rit->y()) > y)
2018 previousRow(pit, rit);
2024 int LyXText::getDepth() const
2026 return cursor.par()->getDepth();
2030 RowList::iterator LyXText::firstRow() const
2032 return ownerParagraphs().front().rows.begin();
2036 RowList::iterator LyXText::lastRow() const
2038 return boost::prior(endRow());
2042 RowList::iterator LyXText::endRow() const
2044 return ownerParagraphs().back().rows.end();
2048 void LyXText::nextRow(ParagraphList::iterator & pit,
2049 RowList::iterator & rit) const
2052 if (rit == pit->rows.end()) {
2054 if (pit == ownerParagraphs().end())
2057 rit = pit->rows.begin();
2062 void LyXText::previousRow(ParagraphList::iterator & pit,
2063 RowList::iterator & rit) const
2065 if (rit != pit->rows.begin())
2068 BOOST_ASSERT(pit != ownerParagraphs().begin());
2070 rit = boost::prior(pit->rows.end());
2075 bool LyXText::noRows() const
2077 return ownerParagraphs().begin()->rows.empty();