1 /* This file is part of
2 * ======================================================
4 * LyX, The Document Processor
6 * Copyright 1995 Matthias Ettrich
7 * Copyright 1995-2001 The LyX Team.
9 * ====================================================== */
15 #include "paragraph.h"
17 #include "bufferparams.h"
23 #include "frontends/LyXView.h"
24 #include "frontends/Painter.h"
25 #include "frontends/font_metrics.h"
26 #include "frontends/screen.h"
27 #include "frontends/WorkArea.h"
28 #include "bufferview_funcs.h"
29 #include "BufferView.h"
31 #include "ParagraphParameters.h"
32 #include "undo_funcs.h"
33 #include "WordLangTuple.h"
35 #include "insets/insetbib.h"
36 #include "insets/insettext.h"
38 #include "support/textutils.h"
39 #include "support/LAssert.h"
40 #include "support/lstrings.h"
52 int const LYX_PAPER_MARGIN = 20;
56 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
59 int LyXText::workWidth(BufferView * bview) const
62 return inset_owner->textWidth(bview);
64 return bview->workWidth();
68 int LyXText::workWidth(BufferView * bview, Inset * inset) const
73 par = inset->parOwner();
75 pos = par->getPositionOfInset(inset);
77 if (!par || pos == -1) {
78 lyxerr << "LyXText::workWidth: something is wrong,"
79 " fall back to the brute force method" << endl;
80 Buffer::inset_iterator it = bview->buffer()->inset_iterator_begin();
81 Buffer::inset_iterator end = bview->buffer()->inset_iterator_end();
82 for (; it != end; ++it) {
92 return workWidth(bview);
95 LyXLayout_ptr const & layout = par->layout();
97 if (layout->margintype != MARGIN_RIGHT_ADDRESS_BOX) {
98 // Optimization here: in most cases, the real row is
99 // not needed, but only the par/pos values. So we just
100 // construct a dummy row for leftMargin. (JMarc)
104 return workWidth(bview) - leftMargin(bview, &dummyrow);
107 Row * row = getRow(par, pos, dummy_y);
109 while (frow->previous() && frow->par() == frow->previous()->par())
110 frow = frow->previous();
111 unsigned int maxw = 0;
112 while (frow->next() && frow->par() == frow->next()->par()) {
113 if ((frow != row) && (maxw < frow->width()))
114 maxw = frow->width();
120 return workWidth(bview);
124 int LyXText::getRealCursorX(BufferView * bview) const
127 if (the_locking_inset && (the_locking_inset->getLyXText(bview)!=this))
128 x = the_locking_inset->getLyXText(bview)->getRealCursorX(bview);
133 unsigned char LyXText::transformChar(unsigned char c, Paragraph * par,
136 if (!Encodings::is_arabic(c))
137 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
138 return c + (0xb0 - '0');
142 unsigned char const prev_char = pos > 0 ? par->getChar(pos-1) : ' ';
143 unsigned char next_char = ' ';
145 for (pos_type i = pos+1; i < par->size(); ++i)
146 if (!Encodings::IsComposeChar_arabic(par->getChar(i))) {
147 next_char = par->getChar(i);
151 if (Encodings::is_arabic(next_char)) {
152 if (Encodings::is_arabic(prev_char))
153 return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
155 return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
157 if (Encodings::is_arabic(prev_char))
158 return Encodings::TransformChar(c, Encodings::FORM_FINAL);
160 return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
164 // This is the comments that some of the warnings below refers to.
165 // There are some issues in this file and I don't think they are
166 // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that
167 // this is a problem that has been here almost from day one and that a
168 // larger userbase with differenct access patters triggers the bad
169 // behaviour. (segfaults.) What I think happen is: In several places
170 // we store the paragraph in the current cursor and then moves the
171 // cursor. This movement of the cursor will delete paragraph at the
172 // old position if it is now empty. This will make the temporary
173 // pointer to the old cursor paragraph invalid and dangerous to use.
174 // And is some cases this will trigger a segfault. I have marked some
175 // of the cases where this happens with a warning, but I am sure there
176 // are others in this file and in text2.C. There is also a note in
177 // Delete() that you should read. In Delete I store the paragraph->id
178 // instead of a pointer to the paragraph. I am pretty sure this faulty
179 // use of temporary pointers to paragraphs that might have gotten
180 // invalidated (through a cursor movement) before they are used, are
181 // the cause of the strange crashes we get reported often.
183 // It is very tiresom to change this code, especially when it is as
184 // hard to read as it is. Help to fix all the cases where this is done
185 // would be greately appreciated.
189 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
192 char const c = par->getChar(pos);
193 return singleWidth(bview, par, pos, c);
197 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
198 pos_type pos, char c) const
200 LyXFont const font = getFont(bview->buffer(), par, pos);
202 // The most common case is handled first (Asger)
203 if (IsPrintable(c)) {
204 if (font.language()->RightToLeft()) {
205 if (font.language()->lang() == "arabic" &&
206 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
207 lyxrc.font_norm_type == LyXRC::ISO_10646_1))
208 if (Encodings::IsComposeChar_arabic(c))
211 c = transformChar(c, par, pos);
212 else if (font.language()->lang() == "hebrew" &&
213 Encodings::IsComposeChar_hebrew(c))
216 return font_metrics::width(c, font);
218 } else if (IsHfillChar(c)) {
219 // Because of the representation as vertical lines
221 } else if (c == Paragraph::META_INSET) {
222 Inset * tmpinset = par->getInset(pos);
225 // this IS needed otherwise on initialitation we don't get the fill
226 // of the row right (ONLY on initialization if we read a file!)
227 // should be changed! (Jug 20011204)
228 tmpinset->update(bview, font);
230 return tmpinset->width(bview, font);
234 } else if (IsSeparatorChar(c))
236 else if (IsNewlineChar(c))
238 return font_metrics::width(c, font);
242 // Returns the paragraph position of the last character in the specified row
243 pos_type LyXText::rowLast(Row const * row) const
245 if (!row->next() || row->next()->par() != row->par()) {
246 return row->par()->size() - 1;
248 return row->next()->pos() - 1;
253 pos_type LyXText::rowLastPrintable(Row const * row) const
255 pos_type const last = rowLast(row);
256 bool ignore_the_space_on_the_last_position = true;
258 // we have to consider a space on the last position in this case!
259 if (row->next() && row->par() == row->next()->par() &&
260 row->next()->par()->getChar(last+1) == Paragraph::META_INSET &&
261 (ins=row->next()->par()->getInset(last+1)) &&
262 (ins->needFullRow() || ins->display()))
264 ignore_the_space_on_the_last_position = false;
266 if (last >= row->pos()
268 && row->next()->par() == row->par()
269 && row->par()->isSeparator(last)
270 && ignore_the_space_on_the_last_position)
277 void LyXText::computeBidiTables(Buffer const * buf, Row * row) const
279 bidi_same_direction = true;
280 if (!lyxrc.rtl_support) {
285 Inset * inset = row->par()->inInset();
286 if (inset && inset->owner() &&
287 inset->owner()->lyxCode() == Inset::ERT_CODE) {
292 bidi_start = row->pos();
293 bidi_end = rowLastPrintable(row);
295 if (bidi_start > bidi_end) {
300 if (bidi_end + 2 - bidi_start >
301 static_cast<pos_type>(log2vis_list.size())) {
303 (bidi_end + 2 - bidi_start < 500) ?
304 500 : 2 * (bidi_end + 2 - bidi_start);
305 log2vis_list.resize(new_size);
306 vis2log_list.resize(new_size);
307 bidi_levels.resize(new_size);
310 vis2log_list[bidi_end + 1 - bidi_start] = -1;
311 log2vis_list[bidi_end + 1 - bidi_start] = -1;
315 row->par()->isRightToLeftPar(buf->params);
319 pos_type const main_body = beginningOfMainBody(buf, row->par());
321 for (pos_type lpos = bidi_start; lpos <= bidi_end; ++lpos) {
322 bool is_space = row->par()->isLineSeparator(lpos);
324 (is_space && lpos + 1 <= bidi_end &&
325 !row->par()->isLineSeparator(lpos + 1) &&
326 !row->par()->isNewline(lpos + 1))
328 LyXFont font = row->par()->getFontSettings(buf->params, pos);
329 if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() &&
330 font.number() == LyXFont::ON &&
331 row->par()->getFontSettings(buf->params, lpos - 1).number()
333 font = row->par()->getFontSettings(buf->params, lpos);
338 bool new_rtl = font.isVisibleRightToLeft();
339 bool new_rtl0 = font.isRightToLeft();
342 if (lpos == main_body - 1
343 && row->pos() < main_body - 1
345 new_level = (rtl_par) ? 1 : 0;
346 new_rtl = new_rtl0 = rtl_par;
348 new_level = (new_rtl) ? 1 : 2;
350 new_level = (rtl_par) ? 2 : 0;
352 if (is_space && new_level >= level) {
358 int new_level2 = new_level;
360 if (level == new_level && rtl0 != new_rtl0) {
362 log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1;
363 } else if (level < new_level) {
364 log2vis_list[lpos - bidi_start] = (rtl) ? -1 : 1;
365 if (new_level > rtl_par)
366 bidi_same_direction = false;
368 log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1;
371 bidi_levels[lpos - bidi_start] = new_level;
373 while (level > new_level2) {
374 pos_type old_lpos = stack[--level];
375 int delta = lpos - old_lpos - 1;
378 log2vis_list[lpos - bidi_start] += delta;
379 log2vis_list[old_lpos - bidi_start] += delta;
381 while (level < new_level)
382 stack[level++] = lpos;
386 pos_type const old_lpos = stack[--level];
387 int delta = bidi_end - old_lpos;
390 log2vis_list[old_lpos - bidi_start] += delta;
393 pos_type vpos = bidi_start - 1;
394 for (pos_type lpos = bidi_start;
395 lpos <= bidi_end; ++lpos) {
396 vpos += log2vis_list[lpos - bidi_start];
397 vis2log_list[vpos - bidi_start] = lpos;
398 log2vis_list[lpos - bidi_start] = vpos;
403 // This method requires a previous call to ComputeBidiTables()
404 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
407 if (!lyxrc.rtl_support || pos == 0)
410 if (!bidi_InRange(pos - 1)) {
411 /// This can happen if pos is the first char of a row.
412 /// Returning false in this case is incorrect!
416 bool const rtl = bidi_level(pos - 1) % 2;
417 bool const rtl2 = bidi_InRange(pos)
418 ? bidi_level(pos) % 2
419 : par->isRightToLeftPar(buf->params);
424 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
425 pos_type pos, LyXFont const & font) const
427 if (!lyxrc.rtl_support)
428 return false; // This is just for speedup
430 bool const rtl = font.isVisibleRightToLeft();
431 bool const rtl2 = bidi_InRange(pos)
432 ? bidi_level(pos) % 2
433 : par->isRightToLeftPar(buf->params);
438 void LyXText::drawNewline(DrawRowParams & p, pos_type const pos)
440 // Draw end-of-line marker
441 LyXFont const font = getFont(p.bv->buffer(), p.row->par(), pos);
442 int const wid = font_metrics::width('n', font);
443 int const asc = font_metrics::maxAscent(font);
444 int const y = p.yo + p.row->baseline();
448 yp[0] = int(y - 0.875 * asc * 0.75);
449 yp[1] = int(y - 0.500 * asc * 0.75);
450 yp[2] = int(y - 0.125 * asc * 0.75);
452 if (bidi_level(pos) % 2 == 0) {
453 xp[0] = int(p.x + wid * 0.375);
455 xp[2] = int(p.x + wid * 0.375);
457 xp[0] = int(p.x + wid * 0.625);
458 xp[1] = int(p.x + wid);
459 xp[2] = int(p.x + wid * 0.625);
462 p.pain->lines(xp, yp, 3, LColor::eolmarker);
464 yp[0] = int(y - 0.500 * asc * 0.75);
465 yp[1] = int(y - 0.500 * asc * 0.75);
466 yp[2] = int(y - asc * 0.75);
468 if (bidi_level(pos) % 2 == 0) {
470 xp[1] = int(p.x + wid);
471 xp[2] = int(p.x + wid);
473 xp[0] = int(p.x + wid);
478 p.pain->lines(xp, yp, 3, LColor::eolmarker);
484 bool LyXText::drawInset(DrawRowParams & p, pos_type const pos)
486 Inset * inset = p.row->par()->getInset(pos);
488 // FIXME: shouldn't happen
493 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
494 // we need this here as the row pointer may be illegal
495 // at a later time (Jug20020502)
496 Row * prev = p.row->previous();
498 inset->update(p.bv, font, false);
499 inset->draw(p.bv, font, p.yo + p.row->baseline(), p.x, p.cleared);
501 if (!need_break_row && !inset_owner
502 && p.bv->text->status() == CHANGED_IN_DRAW) {
503 if (prev && prev->par() == p.row->par()) {
504 breakAgainOneRow(p.bv, prev);
505 if (prev->next() != p.row) {
506 // breakAgainOneRow() has removed p.row
507 p.row = 0; // see what this breaks
508 need_break_row = prev;
510 need_break_row = p.row;
513 need_break_row = firstrow;
515 need_break_row = prev->next();
517 setCursor(p.bv, cursor.par(), cursor.pos());
524 void LyXText::drawForeignMark(DrawRowParams & p, float const orig_x, LyXFont const & orig_font)
526 if (!lyxrc.mark_foreign_language)
528 if (orig_font.language() == latex_language)
530 if (orig_font.language() == p.bv->buffer()->params.language)
533 int const y = p.yo + p.row->height() - 1;
534 p.pain->line(int(orig_x), y, int(p.x), y, LColor::language);
538 void LyXText::drawHebrewComposeChar(DrawRowParams & p, pos_type & vpos)
540 pos_type pos = vis2log(vpos);
545 char c = p.row->par()->getChar(pos);
549 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
550 int const width = font_metrics::width(c, font);
553 for (pos_type i = pos-1; i >= 0; --i) {
554 c = p.row->par()->getChar(i);
555 if (!Encodings::IsComposeChar_hebrew(c)) {
556 if (IsPrintableNonspace(c)) {
558 singleWidth(p.bv, p.row->par(), i, c);
560 dx = (c == 'ø' || c == 'ã')
562 : (width2 - width) / 2;
569 p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font);
573 void LyXText::drawArabicComposeChar(DrawRowParams & p, pos_type & vpos)
575 pos_type pos = vis2log(vpos);
579 char c = p.row->par()->getChar(pos);
580 c = transformChar(c, p.row->par(), pos);
584 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
585 int const width = font_metrics::width(c, font);
588 for (pos_type i = pos-1; i >= 0; --i) {
589 c = p.row->par()->getChar(i);
590 if (!Encodings::IsComposeChar_arabic(c)) {
591 if (IsPrintableNonspace(c)) {
593 singleWidth(p.bv, p.row->par(), i, c);
594 dx = (width2 - width) / 2;
600 p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font);
604 void LyXText::drawChars(DrawRowParams & p, pos_type & vpos,
605 bool hebrew, bool arabic)
607 pos_type pos = vis2log(vpos);
608 pos_type const last = rowLastPrintable(p.row);
609 LyXFont const & orig_font = getFont(p.bv->buffer(), p.row->par(), pos);
613 str += p.row->par()->getChar(pos);
615 unsigned char c = str[0];
616 str[0] = transformChar(c, p.row->par(), pos);
620 // collect as much similar chars as we can
621 while (vpos <= last && (pos = vis2log(vpos)) >= 0) {
622 char c = p.row->par()->getChar(pos);
624 if (!IsPrintableNonspace(c))
627 if (arabic && Encodings::IsComposeChar_arabic(c))
629 if (hebrew && Encodings::IsComposeChar_hebrew(c))
632 if (orig_font != getFont(p.bv->buffer(), p.row->par(), pos))
636 c = transformChar(c, p.row->par(), pos);
641 // Draw text and set the new x position
642 p.pain->text(int(p.x), p.yo + p.row->baseline(), str, orig_font);
643 p.x += font_metrics::width(str, orig_font);
647 bool LyXText::draw(DrawRowParams & p, pos_type & vpos)
649 pos_type const pos = vis2log(vpos);
650 Paragraph * par = p.row->par();
652 LyXFont const & orig_font = getFont(p.bv->buffer(), par, pos);
654 float const orig_x = p.x;
656 char const c = par->getChar(pos);
658 if (IsNewlineChar(c)) {
662 } else if (IsInsetChar(c)) {
663 if (!drawInset(p, pos))
666 drawForeignMark(p, orig_x, orig_font);
670 // usual characters, no insets
672 // special case languages
673 bool const hebrew = (orig_font.language()->lang() == "hebrew");
675 orig_font.language()->lang() == "arabic" &&
676 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
677 lyxrc.font_norm_type == LyXRC::ISO_10646_1);
679 // draw as many chars as we can
680 if ((!hebrew && !arabic)
681 || (hebrew && !Encodings::IsComposeChar_hebrew(c))
682 || (arabic && !Encodings::IsComposeChar_arabic(c))) {
683 drawChars(p, vpos, hebrew, arabic);
685 drawHebrewComposeChar(p, vpos);
687 drawArabicComposeChar(p, vpos);
690 drawForeignMark(p, orig_x, orig_font);
692 #ifdef INHERIT_LANGUAGE
694 if ((font.language() == inherit_language) ||
695 (font.language() == ignore_language))
696 lyxerr << "No this shouldn't happen!\n";
703 int LyXText::leftMargin(BufferView * bview, Row const * row) const
706 if ((row->par()->getChar(row->pos()) == Paragraph::META_INSET) &&
707 (ins=row->par()->getInset(row->pos())) &&
708 (ins->needFullRow() || ins->display()))
709 return LYX_PAPER_MARGIN;
711 LyXTextClass const & tclass =
712 bview->buffer()->params.getLyXTextClass();
713 LyXLayout_ptr const & layout = row->par()->layout();
715 string parindent = layout->parindent;
717 int x = LYX_PAPER_MARGIN;
719 x += font_metrics::signedWidth(tclass.leftmargin(), tclass.defaultfont());
721 // this is the way, LyX handles the LaTeX-Environments.
722 // I have had this idea very late, so it seems to be a
723 // later added hack and this is true
724 if (!row->par()->getDepth()) {
725 if (row->par()->layout() == tclass.defaultLayout()) {
726 // find the previous same level paragraph
727 if (row->par()->previous()) {
728 Paragraph * newpar = row->par()
729 ->depthHook(row->par()->getDepth());
731 newpar->layout()->nextnoindent)
736 // find the next level paragraph
739 row->par()->outerHook();
741 // make a corresponding row. Needed to call LeftMargin()
743 // check wether it is a sufficent paragraph
744 if (newpar && newpar->layout()->isEnvironment()) {
746 dummyrow.par(newpar);
747 dummyrow.pos(newpar->size());
748 x = leftMargin(bview, &dummyrow);
750 // this is no longer an error, because this function
751 // is used to clear impossible depths after changing
752 // a layout. Since there is always a redo,
753 // LeftMargin() is always called
754 row->par()->params().depth(0);
757 if (newpar && row->par()->layout() == tclass.defaultLayout()) {
758 if (newpar->params().noindent())
761 parindent = newpar->layout()->parindent;
767 LyXFont const labelfont = getLabelFont(bview->buffer(), row->par());
768 switch (layout->margintype) {
770 if (!layout->leftmargin.empty()) {
771 x += font_metrics::signedWidth(layout->leftmargin,
772 tclass.defaultfont());
774 if (!row->par()->getLabelstring().empty()) {
775 x += font_metrics::signedWidth(layout->labelindent,
777 x += font_metrics::width(row->par()->getLabelstring(),
779 x += font_metrics::width(layout->labelsep, labelfont);
783 x += font_metrics::signedWidth(layout->labelindent, labelfont);
784 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
785 if (!row->par()->getLabelWidthString().empty()) {
786 x += font_metrics::width(row->par()->getLabelWidthString(),
788 x += font_metrics::width(layout->labelsep, labelfont);
793 x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()) * 4
794 / (row->par()->getDepth() + 4);
796 case MARGIN_FIRST_DYNAMIC:
797 if (layout->labeltype == LABEL_MANUAL) {
798 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
799 x += font_metrics::signedWidth(layout->leftmargin,
802 x += font_metrics::signedWidth(layout->labelindent,
805 } else if (row->pos()
806 // Special case to fix problems with
808 || (layout->labeltype == LABEL_STATIC
809 && layout->latextype == LATEX_ENVIRONMENT
810 && ! row->par()->isFirstInSequence())) {
811 x += font_metrics::signedWidth(layout->leftmargin,
813 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
814 && layout->labeltype != LABEL_BIBLIO
815 && layout->labeltype !=
816 LABEL_CENTERED_TOP_ENVIRONMENT) {
817 x += font_metrics::signedWidth(layout->labelindent,
819 x += font_metrics::width(layout->labelsep, labelfont);
820 x += font_metrics::width(row->par()->getLabelstring(),
825 case MARGIN_RIGHT_ADDRESS_BOX:
827 // ok, a terrible hack. The left margin depends on the widest
828 // row in this paragraph. Do not care about footnotes, they
829 // are *NOT* allowed in the LaTeX realisation of this layout.
831 // find the first row of this paragraph
832 Row const * tmprow = row;
833 while (tmprow->previous()
834 && tmprow->previous()->par() == row->par())
835 tmprow = tmprow->previous();
837 int minfill = tmprow->fill();
838 while (tmprow->next() && tmprow->next()->par() == row->par()) {
839 tmprow = tmprow->next();
840 if (tmprow->fill() < minfill)
841 minfill = tmprow->fill();
844 x += font_metrics::signedWidth(layout->leftmargin,
845 tclass.defaultfont());
851 if ((workWidth(bview) > 0) &&
852 !row->par()->params().leftIndent().zero())
854 LyXLength const len = row->par()->params().leftIndent();
855 int const tw = inset_owner ?
856 inset_owner->latexTextWidth(bview) : workWidth(bview);
857 x += len.inPixels(tw, bview->text->defaultHeight());
860 LyXAlignment align; // wrong type
862 if (row->par()->params().align() == LYX_ALIGN_LAYOUT)
863 align = layout->align;
865 align = row->par()->params().align();
867 // set the correct parindent
868 if (row->pos() == 0) {
869 if ((layout->labeltype == LABEL_NO_LABEL
870 || layout->labeltype == LABEL_TOP_ENVIRONMENT
871 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
872 || (layout->labeltype == LABEL_STATIC
873 && layout->latextype == LATEX_ENVIRONMENT
874 && ! row->par()->isFirstInSequence()))
875 && align == LYX_ALIGN_BLOCK
876 && !row->par()->params().noindent()
877 // in tabulars and ert paragraphs are never indented!
878 && (!row->par()->inInset() || !row->par()->inInset()->owner() ||
879 (row->par()->inInset()->owner()->lyxCode() != Inset::TABULAR_CODE &&
880 row->par()->inInset()->owner()->lyxCode() != Inset::ERT_CODE))
881 && (row->par()->layout() != tclass.defaultLayout() ||
882 bview->buffer()->params.paragraph_separation ==
883 BufferParams::PARSEP_INDENT)) {
884 x += font_metrics::signedWidth(parindent,
885 tclass.defaultfont());
886 } else if (layout->labeltype == LABEL_BIBLIO) {
887 // ale970405 Right width for bibitems
888 x += bibitemMaxWidth(bview, tclass.defaultfont());
896 int LyXText::rightMargin(Buffer const * buf, Row const * row) const
899 if ((row->par()->getChar(row->pos()) == Paragraph::META_INSET) &&
900 (ins=row->par()->getInset(row->pos())) &&
901 (ins->needFullRow() || ins->display()))
902 return LYX_PAPER_MARGIN;
904 LyXTextClass const & tclass = buf->params.getLyXTextClass();
905 LyXLayout_ptr const & layout = row->par()->layout();
907 int x = LYX_PAPER_MARGIN
908 + font_metrics::signedWidth(tclass.rightmargin(),
909 tclass.defaultfont());
911 // this is the way, LyX handles the LaTeX-Environments.
912 // I have had this idea very late, so it seems to be a
913 // later added hack and this is true
914 if (row->par()->getDepth()) {
915 // find the next level paragraph
917 Paragraph * newpar = row->par();
920 newpar = newpar->previous();
922 && newpar->getDepth() >= row->par()->getDepth());
924 // make a corresponding row. Needed to call LeftMargin()
926 // check wether it is a sufficent paragraph
927 if (newpar && newpar->layout()->isEnvironment()) {
929 dummyrow.par(newpar);
931 x = rightMargin(buf, &dummyrow);
933 // this is no longer an error, because this function
934 // is used to clear impossible depths after changing
935 // a layout. Since there is always a redo,
936 // LeftMargin() is always called
937 row->par()->params().depth(0);
941 //lyxerr << "rightmargin: " << layout->rightmargin << endl;
942 x += font_metrics::signedWidth(layout->rightmargin,
943 tclass.defaultfont())
944 * 4 / (row->par()->getDepth() + 4);
949 int LyXText::labelEnd(BufferView * bview, Row const * row) const
951 if (row->par()->layout()->margintype == MARGIN_MANUAL) {
954 tmprow.pos(row->par()->size());
955 // just the beginning of the main body
956 return leftMargin(bview, &tmprow);
958 // LabelEnd is only needed,
959 // if the layout fills a flushleft label.
965 // get the next breakpoint in a given paragraph
967 LyXText::nextBreakPoint(BufferView * bview, Row const * row, int width) const
969 Paragraph * par = row->par();
974 pos_type const pos = row->pos();
976 // position of the last possible breakpoint
977 // -1 isn't a suitable value, but a flag
978 pos_type last_separator = -1;
979 width -= rightMargin(bview->buffer(), row);
981 pos_type const main_body =
982 beginningOfMainBody(bview->buffer(), par);
983 LyXLayout_ptr const & layout = par->layout();
987 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
988 // special code for right address boxes, only newlines count
989 while (i < par->size()) {
990 if (par->isNewline(i)) {
992 i = par->size() - 1; // this means break
994 } else if (par->isInset(i) && par->getInset(i)
995 && par->getInset(i)->display()) {
996 par->getInset(i)->display(false);
1001 // Last position is an invariant
1002 pos_type const last = par->size();
1003 // this is the usual handling
1004 int x = leftMargin(bview, row);
1005 bool doitonetime = true;
1006 while (doitonetime || ((x < width) && (i < last))) {
1007 doitonetime = false;
1008 char const c = par->getChar(i);
1010 if (c == Paragraph::META_INSET)
1011 in = par->getInset(i);
1012 if (IsNewlineChar(c)) {
1014 x = width; // this means break
1015 } else if (in && !in->isChar()) {
1016 // check wether a Display() inset is
1017 // valid here. if not, change it to
1019 if (in->display() &&
1020 (layout->isCommand() ||
1021 (layout->labeltype == LABEL_MANUAL
1022 && i < beginningOfMainBody(bview->buffer(), par))))
1024 // display istn't allowd
1026 x += singleWidth(bview, par, i, c);
1027 } else if (in->display() || in->needFullRow()) {
1028 // So break the line here
1032 if (par->isLineSeparator(i+1))
1035 last_separator = last; // to avoid extra rows
1037 last_separator = i - 1;
1038 x = width; // this means break
1040 x += singleWidth(bview, par, i, c);
1041 // we have to check this separately as we could have a
1042 // lineseparator and then the algorithm below would prefer
1043 // that which IS wrong! We should always break on an inset
1044 // if it's too long and not on the last separator.
1045 // Maybe the only exeption is insets used as chars but
1046 // then we would have to have a special function inside
1047 // the inset to tell us this. Till then we leave it as
1048 // it is now. (Jug 20020106)
1049 if (pos < i && x >= width && last_separator >= 0)
1050 last_separator = i - 1;
1053 if (par->isLineSeparator(i))
1055 x += singleWidth(bview, par, i, c);
1058 if (i == main_body) {
1059 x += font_metrics::width(layout->labelsep,
1060 getLabelFont(bview->buffer(), par));
1061 if (par->isLineSeparator(i - 1))
1062 x-= singleWidth(bview, par, i - 1);
1063 int left_margin = labelEnd(bview, row);
1064 if (x < left_margin)
1068 if ((pos+1 < i) && (last_separator < 0) && (x >= width))
1069 last_separator = i - 2;
1070 else if ((pos < i) && (last_separator < 0) && (x >= width))
1071 last_separator = i - 1;
1072 // end of paragraph is always a suitable separator
1073 else if (i == last && x < width)
1077 // well, if last_separator is still 0, the line isn't breakable.
1078 // don't care and cut simply at the end
1079 if (last_separator < 0) {
1083 // manual labels cannot be broken in LaTeX, do not care
1084 if (main_body && last_separator < main_body)
1085 last_separator = main_body - 1;
1087 return last_separator;
1091 // returns the minimum space a row needs on the screen in pixel
1092 int LyXText::fill(BufferView * bview, Row * row, int paper_width) const
1094 if (paper_width < 0)
1098 // get the pure distance
1099 pos_type const last = rowLastPrintable(row);
1101 // special handling of the right address boxes
1102 if (row->par()->layout()->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1103 int const tmpfill = row->fill();
1104 row->fill(0); // the minfill in MarginLeft()
1105 w = leftMargin(bview, row);
1108 w = leftMargin(bview, row);
1110 LyXLayout_ptr const & layout = row->par()->layout();
1112 pos_type const main_body =
1113 beginningOfMainBody(bview->buffer(), row->par());
1114 pos_type i = row->pos();
1117 if (main_body > 0 && i == main_body) {
1118 w += font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), row->par()));
1119 if (row->par()->isLineSeparator(i - 1))
1120 w -= singleWidth(bview, row->par(), i - 1);
1121 int left_margin = labelEnd(bview, row);
1122 if (w < left_margin)
1125 w += singleWidth(bview, row->par(), i);
1128 if (main_body > 0 && main_body > last) {
1129 w += font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), row->par()));
1130 if (last >= 0 && row->par()->isLineSeparator(last))
1131 w -= singleWidth(bview, row->par(), last);
1132 int const left_margin = labelEnd(bview, row);
1133 if (w < left_margin)
1137 int const fill = paper_width - w - rightMargin(bview->buffer(), row);
1142 // returns the minimum space a manual label needs on the screen in pixel
1143 int LyXText::labelFill(BufferView * bview, Row const * row) const
1145 pos_type last = beginningOfMainBody(bview->buffer(), row->par()) - 1;
1146 // -1 because a label ends either with a space that is in the label,
1147 // or with the beginning of a footnote that is outside the label.
1149 // I don't understand this code in depth, but sometimes "last" is
1150 // less than 0 and this causes a crash. This fix seems to work
1151 // correctly, but I bet the real error is elsewhere. The bug is
1152 // triggered when you have an open footnote in a paragraph
1153 // environment with a manual label. (Asger)
1154 if (last < 0) last = 0;
1156 // a separator at this end does not count
1157 if (row->par()->isLineSeparator(last))
1161 pos_type i = row->pos();
1163 w += singleWidth(bview, row->par(), i);
1168 if (!row->par()->params().labelWidthString().empty()) {
1169 fill = max(font_metrics::width(row->par()->params().labelWidthString(),
1170 getLabelFont(bview->buffer(), row->par())) - w,
1178 // returns the number of separators in the specified row. The separator
1179 // on the very last column doesnt count
1180 int LyXText::numberOfSeparators(Buffer const * buf, Row const * row) const
1182 pos_type last = rowLastPrintable(row);
1183 pos_type p = max(row->pos(), beginningOfMainBody(buf, row->par()));
1186 for (; p <= last; ++p) {
1187 if (row->par()->isSeparator(p)) {
1195 // returns the number of hfills in the specified row. The LyX-Hfill is
1196 // a LaTeX \hfill so that the hfills at the beginning and at the end were
1197 // ignored. This is *MUCH* more usefull than not to ignore!
1198 int LyXText::numberOfHfills(Buffer const * buf, Row const * row) const
1200 pos_type const last = rowLast(row);
1201 pos_type first = row->pos();
1204 // hfill *DO* count at the beginning of paragraphs!
1205 while (first <= last && row->par()->isHfill(first)) {
1210 first = max(first, beginningOfMainBody(buf, row->par()));
1212 for (pos_type p = first; p <= last; ++p) {
1213 // last, because the end is ignored!
1215 if (row->par()->isHfill(p)) {
1223 // like NumberOfHfills, but only those in the manual label!
1224 int LyXText::numberOfLabelHfills(Buffer const * buf, Row const * row) const
1226 pos_type last = rowLast(row);
1227 pos_type first = row->pos();
1229 // hfill *DO* count at the beginning of paragraphs!
1230 while (first < last && row->par()->isHfill(first))
1234 last = min(last, beginningOfMainBody(buf, row->par()));
1236 for (pos_type p = first; p < last; ++p) {
1237 // last, because the end is ignored!
1238 if (row->par()->isHfill(p)) {
1246 // returns true, if a expansion is needed.
1247 // Rules are given by LaTeX
1248 bool LyXText::hfillExpansion(Buffer const * buf, Row const * row_ptr,
1251 // by the way, is it a hfill?
1252 if (!row_ptr->par()->isHfill(pos))
1255 // at the end of a row it does not count
1256 // unless another hfill exists on the line
1257 if (pos >= rowLast(row_ptr)) {
1258 pos_type i = row_ptr->pos();
1259 while (i < pos && !row_ptr->par()->isHfill(i)) {
1267 // at the beginning of a row it does not count, if it is not
1268 // the first row of a paragaph
1269 if (!row_ptr->pos())
1272 // in some labels it does not count
1273 if (row_ptr->par()->layout()->margintype != MARGIN_MANUAL
1274 && pos < beginningOfMainBody(buf, row_ptr->par()))
1277 // if there is anything between the first char of the row and
1278 // the sepcified position that is not a newline and not a hfill,
1279 // the hfill will count, otherwise not
1280 pos_type i = row_ptr->pos();
1281 while (i < pos && (row_ptr->par()->isNewline(i)
1282 || row_ptr->par()->isHfill(i)))
1289 LColor::color LyXText::backgroundColor()
1292 return inset_owner->backgroundColor();
1294 return LColor::background;
1297 void LyXText::setHeightOfRow(BufferView * bview, Row * row_ptr) const
1299 // get the maximum ascent and the maximum descent
1302 float layoutasc = 0;
1303 float layoutdesc = 0;
1306 Inset * tmpinset = 0;
1308 // ok , let us initialize the maxasc and maxdesc value.
1309 // This depends in LaTeX of the font of the last character
1310 // in the paragraph. The hack below is necessary because
1311 // of the possibility of open footnotes
1313 // Correction: only the fontsize count. The other properties
1314 // are taken from the layoutfont. Nicer on the screen :)
1315 Paragraph * par = row_ptr->par();
1316 Paragraph * firstpar = row_ptr->par();
1318 LyXLayout_ptr const & layout = firstpar->layout();
1320 // as max get the first character of this row then it can increes but not
1321 // decrees the height. Just some point to start with so we don't have to
1322 // do the assignment below too often.
1323 LyXFont font = getFont(bview->buffer(), par, row_ptr->pos());
1324 LyXFont::FONT_SIZE const tmpsize = font.size();
1325 font = getLayoutFont(bview->buffer(), par);
1326 LyXFont::FONT_SIZE const size = font.size();
1327 font.setSize(tmpsize);
1329 LyXFont labelfont = getLabelFont(bview->buffer(), par);
1331 float spacing_val = 1.0;
1332 if (!row_ptr->par()->params().spacing().isDefault()) {
1333 spacing_val = row_ptr->par()->params().spacing().getValue();
1335 spacing_val = bview->buffer()->params.spacing.getValue();
1337 //lyxerr << "spacing_val = " << spacing_val << endl;
1339 int maxasc = int(font_metrics::maxAscent(font) *
1340 layout->spacing.getValue() *
1342 int maxdesc = int(font_metrics::maxDescent(font) *
1343 layout->spacing.getValue() *
1346 pos_type const pos_end = rowLast(row_ptr);
1350 // Check if any insets are larger
1351 for (pos_type pos = row_ptr->pos(); pos <= pos_end; ++pos) {
1352 if (row_ptr->par()->isInset(pos)) {
1353 tmpfont = getFont(bview->buffer(), row_ptr->par(), pos);
1354 tmpinset = row_ptr->par()->getInset(pos);
1356 #if 1 // this is needed for deep update on initialitation
1357 tmpinset->update(bview, tmpfont);
1359 asc = tmpinset->ascent(bview, tmpfont);
1360 desc = tmpinset->descent(bview, tmpfont);
1361 maxwidth += tmpinset->width(bview, tmpfont);
1362 maxasc = max(maxasc, asc);
1363 maxdesc = max(maxdesc, desc);
1366 maxwidth += singleWidth(bview, row_ptr->par(), pos);
1370 // Check if any custom fonts are larger (Asger)
1371 // This is not completely correct, but we can live with the small,
1372 // cosmetic error for now.
1373 LyXFont::FONT_SIZE maxsize =
1374 row_ptr->par()->highestFontInRange(row_ptr->pos(), pos_end, size);
1375 if (maxsize > font.size()) {
1376 font.setSize(maxsize);
1378 asc = font_metrics::maxAscent(font);
1379 desc = font_metrics::maxDescent(font);
1386 // This is nicer with box insets:
1390 row_ptr->ascent_of_text(maxasc);
1392 // is it a top line?
1393 if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
1395 // some parksips VERY EASY IMPLEMENTATION
1396 if (bview->buffer()->params.paragraph_separation ==
1397 BufferParams::PARSEP_SKIP)
1399 if (layout->isParagraph()
1400 && firstpar->getDepth() == 0
1401 && firstpar->previous())
1403 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1404 } else if (firstpar->previous() &&
1405 firstpar->previous()->layout()->isParagraph() &&
1406 firstpar->previous()->getDepth() == 0)
1408 // is it right to use defskip here too? (AS)
1409 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1413 // the paper margins
1414 if (!row_ptr->par()->previous() && bv_owner)
1415 maxasc += LYX_PAPER_MARGIN;
1417 // add the vertical spaces, that the user added
1418 maxasc += getLengthMarkerHeight(bview, firstpar->params().spaceTop());
1420 // do not forget the DTP-lines!
1421 // there height depends on the font of the nearest character
1422 if (firstpar->params().lineTop())
1424 maxasc += 2 * font_metrics::ascent('x', getFont(bview->buffer(),
1426 // and now the pagebreaks
1427 if (firstpar->params().pagebreakTop())
1428 maxasc += 3 * defaultHeight();
1430 // This is special code for the chapter, since the label of this
1431 // layout is printed in an extra row
1432 if (layout->labeltype == LABEL_COUNTER_CHAPTER
1433 && bview->buffer()->params.secnumdepth >= 0)
1435 float spacing_val = 1.0;
1436 if (!row_ptr->par()->params().spacing().isDefault()) {
1437 spacing_val = row_ptr->par()->params().spacing().getValue();
1439 spacing_val = bview->buffer()->params.spacing.getValue();
1442 labeladdon = int(font_metrics::maxDescent(labelfont) *
1443 layout->spacing.getValue() *
1445 + int(font_metrics::maxAscent(labelfont) *
1446 layout->spacing.getValue() *
1450 // special code for the top label
1451 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
1452 || layout->labeltype == LABEL_BIBLIO
1453 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1454 && row_ptr->par()->isFirstInSequence()
1455 && !row_ptr->par()->getLabelstring().empty())
1457 float spacing_val = 1.0;
1458 if (!row_ptr->par()->params().spacing().isDefault()) {
1459 spacing_val = row_ptr->par()->params().spacing().getValue();
1461 spacing_val = bview->buffer()->params.spacing.getValue();
1465 (font_metrics::maxAscent(labelfont) *
1466 layout->spacing.getValue() *
1468 +(font_metrics::maxDescent(labelfont) *
1469 layout->spacing.getValue() *
1471 + layout->topsep * defaultHeight()
1472 + layout->labelbottomsep * defaultHeight());
1475 // and now the layout spaces, for example before and after a section,
1476 // or between the items of a itemize or enumerate environment
1478 if (!firstpar->params().pagebreakTop()) {
1479 Paragraph * prev = row_ptr->par()->previous();
1481 prev = row_ptr->par()->depthHook(row_ptr->par()->getDepth());
1482 if (prev && prev->layout() == firstpar->layout() &&
1483 prev->getDepth() == firstpar->getDepth() &&
1484 prev->getLabelWidthString() == firstpar->getLabelWidthString())
1486 layoutasc = (layout->itemsep * defaultHeight());
1487 } else if (row_ptr->previous()) {
1488 tmptop = layout->topsep;
1490 if (row_ptr->previous()->par()->getDepth() >= row_ptr->par()->getDepth())
1491 tmptop -= row_ptr->previous()->par()->layout()->bottomsep;
1494 layoutasc = (tmptop * defaultHeight());
1495 } else if (row_ptr->par()->params().lineTop()) {
1496 tmptop = layout->topsep;
1499 layoutasc = (tmptop * defaultHeight());
1502 prev = row_ptr->par()->outerHook();
1504 maxasc += int(prev->layout()->parsep * defaultHeight());
1506 if (firstpar->previous() &&
1507 firstpar->previous()->getDepth() == 0 &&
1508 firstpar->previous()->layout() !=
1512 } else if (firstpar->previous()) {
1513 maxasc += int(layout->parsep * defaultHeight());
1519 // is it a bottom line?
1520 if (row_ptr->par() == par
1521 && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par()))
1523 // the paper margins
1524 if (!par->next() && bv_owner)
1525 maxdesc += LYX_PAPER_MARGIN;
1527 // add the vertical spaces, that the user added
1528 maxdesc += getLengthMarkerHeight(bview, firstpar->params().spaceBottom());
1530 // do not forget the DTP-lines!
1531 // there height depends on the font of the nearest character
1532 if (firstpar->params().lineBottom())
1533 maxdesc += 2 * font_metrics::ascent('x',
1534 getFont(bview->buffer(),
1536 max(pos_type(0), par->size() - 1)));
1538 // and now the pagebreaks
1539 if (firstpar->params().pagebreakBottom())
1540 maxdesc += 3 * defaultHeight();
1542 // and now the layout spaces, for example before and after
1543 // a section, or between the items of a itemize or enumerate
1545 if (!firstpar->params().pagebreakBottom()
1546 && row_ptr->par()->next()) {
1547 Paragraph * nextpar = row_ptr->par()->next();
1548 Paragraph * comparepar = row_ptr->par();
1552 if (comparepar->getDepth() > nextpar->getDepth()) {
1553 usual = (comparepar->layout()->bottomsep * defaultHeight());
1554 comparepar = comparepar->depthHook(nextpar->getDepth());
1555 if (comparepar->layout()!= nextpar->layout()
1556 || nextpar->getLabelWidthString() !=
1557 comparepar->getLabelWidthString())
1559 unusual = (comparepar->layout()->bottomsep * defaultHeight());
1561 if (unusual > usual)
1562 layoutdesc = unusual;
1565 } else if (comparepar->getDepth() == nextpar->getDepth()) {
1567 if (comparepar->layout() != nextpar->layout()
1568 || nextpar->getLabelWidthString() !=
1569 comparepar->getLabelWidthString())
1570 layoutdesc = int(comparepar->layout()->bottomsep * defaultHeight());
1575 // incalculate the layout spaces
1576 maxasc += int(layoutasc * 2 / (2 + firstpar->getDepth()));
1577 maxdesc += int(layoutdesc * 2 / (2 + firstpar->getDepth()));
1579 // calculate the new height of the text
1580 height -= row_ptr->height();
1582 row_ptr->height(maxasc + maxdesc + labeladdon);
1583 row_ptr->baseline(maxasc + labeladdon);
1585 height += row_ptr->height();
1587 if (layout->margintype != MARGIN_RIGHT_ADDRESS_BOX) {
1590 row_ptr->width(maxwidth);
1591 prepareToPrint(bview, row_ptr, x, dummy, dummy, dummy, false);
1593 row_ptr->width(int(maxwidth + x));
1596 width = max(0,workWidth(bview));
1598 if (r->width() > width)
1606 // Appends the implicit specified paragraph behind the specified row,
1607 // start at the implicit given position
1608 void LyXText::appendParagraph(BufferView * bview, Row * row) const
1610 bool not_ready = true;
1612 // The last character position of a paragraph is an invariant so we can
1613 // safely get it here. (Asger)
1614 pos_type const lastposition = row->par()->size();
1616 // Get the next breakpoint
1617 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1621 // Insert the new row
1622 if (z < lastposition) {
1624 insertRow(row, row->par(), z);
1631 // Set the dimensions of the row
1632 // fixed fill setting now by calling inset->update() in
1633 // SingleWidth when needed!
1634 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1635 setHeightOfRow(bview, tmprow);
1637 } while (not_ready);
1641 void LyXText::breakAgain(BufferView * bview, Row * row) const
1643 bool not_ready = true;
1646 // get the next breakpoint
1647 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1650 if (z < row->par()->size()) {
1651 if (!row->next() || (row->next() && row->next()->par() != row->par())) {
1654 insertRow(row, row->par(), z);
1660 if (row->pos() == z)
1661 not_ready = false; // the rest will not change
1667 // if there are some rows too much, delete them
1668 // only if you broke the whole paragraph!
1669 Row * tmprow2 = row;
1670 while (tmprow2->next() && tmprow2->next()->par() == row->par()) {
1671 tmprow2 = tmprow2->next();
1673 while (tmprow2 != row) {
1674 tmprow2 = tmprow2->previous();
1675 removeRow(tmprow2->next());
1680 // set the dimensions of the row
1681 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1682 setHeightOfRow(bview, tmprow);
1683 } while (not_ready);
1687 // this is just a little changed version of break again
1688 void LyXText::breakAgainOneRow(BufferView * bview, Row * row)
1690 // get the next breakpoint
1691 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1694 if (z < row->par()->size()) {
1696 || (row->next() && row->next()->par() != row->par())) {
1699 insertRow(row, row->par(), z);
1705 if (row->pos() != z)
1709 // if there are some rows too much, delete them
1710 // only if you broke the whole paragraph!
1711 Row * tmprow2 = row;
1712 while (tmprow2->next()
1713 && tmprow2->next()->par() == row->par()) {
1714 tmprow2 = tmprow2->next();
1716 while (tmprow2 != row) {
1717 tmprow2 = tmprow2->previous();
1718 removeRow(tmprow2->next());
1722 // set the dimensions of the row
1723 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1724 setHeightOfRow(bview, tmprow);
1728 void LyXText::breakParagraph(BufferView * bview, char keep_layout)
1730 LyXTextClass const & tclass =
1731 bview->buffer()->params.getLyXTextClass();
1732 LyXLayout_ptr const & layout = cursor.par()->layout();
1734 // this is only allowed, if the current paragraph is not empty or caption
1735 // and if it has not the keepempty flag aktive
1736 if (cursor.par()->empty()
1737 && layout->labeltype != LABEL_SENSITIVE
1738 && !layout->keepempty)
1741 setUndo(bview, Undo::FINISH, cursor.par(), cursor.par()->next());
1743 // Always break behind a space
1745 // It is better to erase the space (Dekel)
1746 if (cursor.pos() < cursor.par()->size()
1747 && cursor.par()->isLineSeparator(cursor.pos()))
1748 cursor.par()->erase(cursor.pos());
1749 // cursor.pos(cursor.pos() + 1);
1751 // break the paragraph
1755 keep_layout = layout->isEnvironment();
1757 // we need to set this before we insert the paragraph. IMO the
1758 // breakParagraph call should return a bool if it inserts the
1759 // paragraph before or behind and we should react on that one
1760 // but we can fix this in 1.3.0 (Jug 20020509)
1761 bool const isempty = (layout->keepempty && cursor.par()->empty());
1762 cursor.par()->breakParagraph(bview->buffer()->params, cursor.pos(),
1765 // well this is the caption hack since one caption is really enough
1766 if (layout->labeltype == LABEL_SENSITIVE) {
1768 // set to standard-layout
1769 cursor.par()->applyLayout(tclass.defaultLayout());
1771 // set to standard-layout
1772 cursor.par()->next()->applyLayout(tclass.defaultLayout());
1775 // if the cursor is at the beginning of a row without prior newline,
1777 // This touches only the screen-update. Otherwise we would may have
1778 // an empty row on the screen
1779 if (cursor.pos() && !cursor.row()->par()->isNewline(cursor.row()->pos() - 1)
1780 && cursor.row()->pos() == cursor.pos())
1785 status(bview, LyXText::NEED_MORE_REFRESH);
1786 refresh_row = cursor.row();
1787 refresh_y = cursor.y() - cursor.row()->baseline();
1789 // Do not forget the special right address boxes
1790 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1791 while (refresh_row->previous() &&
1792 refresh_row->previous()->par() == refresh_row->par())
1794 refresh_row = refresh_row->previous();
1795 refresh_y -= refresh_row->height();
1798 removeParagraph(cursor.row());
1800 // set the dimensions of the cursor row
1801 cursor.row()->fill(fill(bview, cursor.row(), workWidth(bview)));
1803 setHeightOfRow(bview, cursor.row());
1805 while (!cursor.par()->next()->empty()
1806 && cursor.par()->next()->isNewline(0))
1807 cursor.par()->next()->erase(0);
1809 insertParagraph(bview, cursor.par()->next(), cursor.row());
1811 updateCounters(bview);
1813 // This check is necessary. Otherwise the new empty paragraph will
1814 // be deleted automatically. And it is more friendly for the user!
1815 if (cursor.pos() || isempty)
1816 setCursor(bview, cursor.par()->next(), 0);
1818 setCursor(bview, cursor.par(), 0);
1820 if (cursor.row()->next())
1821 breakAgain(bview, cursor.row()->next());
1827 // Just a macro to make some thing easier.
1828 void LyXText::redoParagraph(BufferView * bview) const
1831 redoParagraphs(bview, cursor, cursor.par()->next());
1832 setCursorIntern(bview, cursor.par(), cursor.pos());
1836 // insert a character, moves all the following breaks in the
1837 // same Paragraph one to the right and make a rebreak
1838 void LyXText::insertChar(BufferView * bview, char c)
1840 setUndo(bview, Undo::INSERT, cursor.par(), cursor.par()->next());
1842 // When the free-spacing option is set for the current layout,
1843 // disable the double-space checking
1845 bool const freeSpacing = cursor.row()->par()->layout()->free_spacing ||
1846 cursor.row()->par()->isFreeSpacing();
1848 if (lyxrc.auto_number) {
1849 static string const number_operators = "+-/*";
1850 static string const number_unary_operators = "+-";
1851 static string const number_seperators = ".,:";
1853 if (current_font.number() == LyXFont::ON) {
1854 if (!IsDigit(c) && !contains(number_operators, c) &&
1855 !(contains(number_seperators, c) &&
1856 cursor.pos() >= 1 &&
1857 cursor.pos() < cursor.par()->size() &&
1858 getFont(bview->buffer(),
1860 cursor.pos()).number() == LyXFont::ON &&
1861 getFont(bview->buffer(),
1863 cursor.pos() - 1).number() == LyXFont::ON)
1865 number(bview); // Set current_font.number to OFF
1866 } else if (IsDigit(c) &&
1867 real_current_font.isVisibleRightToLeft()) {
1868 number(bview); // Set current_font.number to ON
1870 if (cursor.pos() > 0) {
1871 char const c = cursor.par()->getChar(cursor.pos() - 1);
1872 if (contains(number_unary_operators, c) &&
1873 (cursor.pos() == 1 ||
1874 cursor.par()->isSeparator(cursor.pos() - 2) ||
1875 cursor.par()->isNewline(cursor.pos() - 2))
1877 setCharFont(bview->buffer(),
1881 } else if (contains(number_seperators, c) &&
1882 cursor.pos() >= 2 &&
1883 getFont(bview->buffer(),
1885 cursor.pos() - 2).number() == LyXFont::ON) {
1886 setCharFont(bview->buffer(),
1896 // First check, if there will be two blanks together or a blank at
1897 // the beginning of a paragraph.
1898 // I decided to handle blanks like normal characters, the main
1899 // difference are the special checks when calculating the row.fill
1900 // (blank does not count at the end of a row) and the check here
1902 // The bug is triggered when we type in a description environment:
1903 // The current_font is not changed when we go from label to main text
1904 // and it should (along with realtmpfont) when we type the space.
1905 // CHECK There is a bug here! (Asger)
1907 LyXFont realtmpfont = real_current_font;
1908 LyXFont rawtmpfont = current_font;
1909 // store the current font. This is because of the use of cursor
1910 // movements. The moving cursor would refresh the current font
1912 // Get the font that is used to calculate the baselineskip
1913 pos_type const lastpos = cursor.par()->size();
1914 LyXFont rawparfont =
1915 cursor.par()->getFontSettings(bview->buffer()->params,
1918 bool jumped_over_space = false;
1920 if (!freeSpacing && IsLineSeparatorChar(c)) {
1921 if ((cursor.pos() > 0
1922 && cursor.par()->isLineSeparator(cursor.pos() - 1))
1923 || (cursor.pos() > 0
1924 && cursor.par()->isNewline(cursor.pos() - 1))
1925 || (cursor.pos() == 0)) {
1926 static bool sent_space_message = false;
1927 if (!sent_space_message) {
1928 if (cursor.pos() == 0)
1929 bview->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1931 bview->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1932 sent_space_message = true;
1937 } else if (IsNewlineChar(c)) {
1938 if (cursor.pos() <= beginningOfMainBody(bview->buffer(),
1944 // No newline at first position of a paragraph or behind labels.
1945 // TeX does not allow that
1947 if (cursor.pos() < cursor.par()->size() &&
1948 cursor.par()->isLineSeparator(cursor.pos()))
1949 // newline always after a blank!
1951 cursor.row()->fill(-1); // to force a new break
1954 // the display inset stuff
1955 if (cursor.row()->par()->isInset(cursor.row()->pos())) {
1956 Inset * inset = cursor.row()->par()->getInset(cursor.row()->pos());
1957 if (inset && (inset->display() || inset->needFullRow())) {
1958 // force a new break
1959 cursor.row()->fill(-1); // to force a new break
1963 // get the cursor row fist
1964 Row * row = cursor.row();
1965 int y = cursor.y() - row->baseline();
1966 if (c != Paragraph::META_INSET) {
1967 // Here case LyXText::InsertInset already insertet the character
1968 cursor.par()->insertChar(cursor.pos(), c);
1970 setCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont);
1972 if (!jumped_over_space) {
1973 // refresh the positions
1975 while (tmprow->next() && tmprow->next()->par() == row->par()) {
1976 tmprow = tmprow->next();
1977 tmprow->pos(tmprow->pos() + 1);
1981 // Is there a break one row above
1982 if (row->previous() && row->previous()->par() == row->par()
1983 && (cursor.par()->isLineSeparator(cursor.pos())
1984 || cursor.par()->isNewline(cursor.pos())
1985 || ((cursor.pos() < cursor.par()->size()) &&
1986 cursor.par()->isInset(cursor.pos()+1))
1987 || cursor.row()->fill() == -1))
1989 pos_type z = nextBreakPoint(bview,
1992 if (z >= row->pos()) {
1995 // set the dimensions of the row above
1996 row->previous()->fill(fill(bview,
2000 setHeightOfRow(bview, row->previous());
2002 y -= row->previous()->height();
2004 refresh_row = row->previous();
2005 status(bview, LyXText::NEED_MORE_REFRESH);
2007 breakAgainOneRow(bview, row);
2009 current_font = rawtmpfont;
2010 real_current_font = realtmpfont;
2011 setCursor(bview, cursor.par(), cursor.pos() + 1,
2012 false, cursor.boundary());
2013 // cursor MUST be in row now.
2015 if (row->next() && row->next()->par() == row->par())
2016 need_break_row = row->next();
2020 // check, wether the last characters font has changed.
2021 if (cursor.pos() && cursor.pos() == cursor.par()->size()
2022 && rawparfont != rawtmpfont)
2023 redoHeightOfParagraph(bview, cursor);
2030 // recalculate the fill of the row
2031 if (row->fill() >= 0) {
2032 // needed because a newline will set fill to -1. Otherwise
2033 // we would not get a rebreak!
2034 row->fill(fill(bview, row, workWidth(bview)));
2036 if (c == Paragraph::META_INSET || row->fill() < 0) {
2039 refresh_x = cursor.x();
2040 refresh_pos = cursor.pos();
2041 status(bview, LyXText::NEED_MORE_REFRESH);
2042 breakAgainOneRow(bview, row);
2043 // will the cursor be in another row now?
2044 if (rowLast(row) <= cursor.pos() + 1 && row->next()) {
2045 if (row->next() && row->next()->par() == row->par())
2046 // this should always be true
2048 breakAgainOneRow(bview, row);
2050 current_font = rawtmpfont;
2051 real_current_font = realtmpfont;
2053 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2055 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
2056 != cursor.boundary())
2057 setCursor(bview, cursor.par(), cursor.pos(), false,
2058 !cursor.boundary());
2059 if (row->next() && row->next()->par() == row->par())
2060 need_break_row = row->next();
2065 refresh_x = cursor.x();
2067 refresh_pos = cursor.pos();
2069 int const tmpheight = row->height();
2070 setHeightOfRow(bview, row);
2071 if (tmpheight == row->height())
2072 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
2074 status(bview, LyXText::NEED_MORE_REFRESH);
2076 current_font = rawtmpfont;
2077 real_current_font = realtmpfont;
2078 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2082 // check, wether the last characters font has changed.
2083 if (cursor.pos() && cursor.pos() == cursor.par()->size()
2084 && rawparfont != rawtmpfont) {
2085 redoHeightOfParagraph(bview, cursor);
2087 // now the special right address boxes
2088 if (cursor.par()->layout()->margintype
2089 == MARGIN_RIGHT_ADDRESS_BOX) {
2090 redoDrawingOfParagraph(bview, cursor);
2098 void LyXText::charInserted()
2100 // Here we could call FinishUndo for every 20 characters inserted.
2101 // This is from my experience how emacs does it.
2102 static unsigned int counter;
2112 void LyXText::prepareToPrint(BufferView * bview,
2113 Row * row, float & x,
2114 float & fill_separator,
2116 float & fill_label_hfill,
2122 float w = row->fill();
2124 fill_label_hfill = 0;
2126 fill_label_hfill = 0;
2129 row->par()->isRightToLeftPar(bview->buffer()->params);
2131 x = (workWidth(bview) > 0)
2132 ? rightMargin(bview->buffer(), row) : 0;
2134 x = (workWidth(bview) > 0)
2135 ? leftMargin(bview, row) : 0;
2137 // is there a manual margin with a manual label
2138 LyXLayout_ptr const & layout = row->par()->layout();
2140 if (layout->margintype == MARGIN_MANUAL
2141 && layout->labeltype == LABEL_MANUAL) {
2142 // one more since labels are left aligned
2143 nlh = numberOfLabelHfills(bview->buffer(), row) + 1;
2144 if (nlh && !row->par()->getLabelWidthString().empty()) {
2145 fill_label_hfill = labelFill(bview, row) / nlh;
2149 // are there any hfills in the row?
2150 float const nh = numberOfHfills(bview->buffer(), row);
2154 fill_hfill = w / nh;
2155 // we don't have to look at the alignment if it is ALIGN_LEFT and
2156 // if the row is already larger then the permitted width as then
2157 // we force the LEFT_ALIGN'edness!
2158 } else if (static_cast<int>(row->width()) < workWidth(bview)) {
2159 // is it block, flushleft or flushright?
2160 // set x how you need it
2162 if (row->par()->params().align() == LYX_ALIGN_LAYOUT) {
2163 align = layout->align;
2165 align = row->par()->params().align();
2168 // center displayed insets
2170 if (row->par()->isInset(row->pos())
2171 && (inset=row->par()->getInset(row->pos()))
2172 && (inset->display())) // || (inset->scroll() < 0)))
2173 align = (inset->lyxCode() == Inset::MATHMACRO_CODE)
2174 ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER;
2175 // ERT insets should always be LEFT ALIGNED on screen
2176 inset = row->par()->inInset();
2177 if (inset && inset->owner() &&
2178 inset->owner()->lyxCode() == Inset::ERT_CODE)
2180 align = LYX_ALIGN_LEFT;
2184 case LYX_ALIGN_BLOCK:
2185 ns = numberOfSeparators(bview->buffer(), row);
2186 if (ns && row->next() && row->next()->par() == row->par() &&
2187 !(row->next()->par()->isNewline(row->next()->pos() - 1))
2188 && !(row->next()->par()->isInset(row->next()->pos())
2189 && row->next()->par()->getInset(row->next()->pos())
2190 && row->next()->par()->getInset(row->next()->pos())->display())
2193 fill_separator = w / ns;
2194 } else if (is_rtl) {
2198 case LYX_ALIGN_RIGHT:
2201 case LYX_ALIGN_CENTER:
2209 computeBidiTables(bview->buffer(), row);
2211 pos_type main_body =
2212 beginningOfMainBody(bview->buffer(), row->par());
2213 pos_type last = rowLast(row);
2215 if (main_body > 0 &&
2216 (main_body - 1 > last ||
2217 !row->par()->isLineSeparator(main_body - 1))) {
2218 x += font_metrics::width(layout->labelsep,
2219 getLabelFont(bview->buffer(), row->par()));
2220 if (main_body - 1 <= last)
2221 x += fill_label_hfill;
2227 // important for the screen
2230 // the cursor set functions have a special mechanism. When they
2231 // realize, that you left an empty paragraph, they will delete it.
2232 // They also delete the corresponding row
2234 void LyXText::cursorRightOneWord(BufferView * bview) const
2236 // treat floats, HFills and Insets as words
2237 LyXCursor tmpcursor = cursor;
2238 // CHECK See comment on top of text.C
2240 if (tmpcursor.pos() == tmpcursor.par()->size()
2241 && tmpcursor.par()->next()) {
2242 tmpcursor.par(tmpcursor.par()->next());
2247 // Skip through initial nonword stuff.
2248 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2249 ! tmpcursor.par()->isWord(tmpcursor.pos())) {
2250 // printf("Current pos1 %d", tmpcursor.pos()) ;
2251 tmpcursor.pos(tmpcursor.pos() + 1);
2254 // Advance through word.
2255 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2256 tmpcursor.par()->isWord(tmpcursor.pos())) {
2257 // printf("Current pos2 %d", tmpcursor.pos()) ;
2258 tmpcursor.pos(tmpcursor.pos() + 1);
2262 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2266 void LyXText::cursorTab(BufferView * bview) const
2268 LyXCursor tmpcursor = cursor;
2269 while (tmpcursor.pos() < tmpcursor.par()->size()
2270 && !tmpcursor.par()->isNewline(tmpcursor.pos()))
2271 tmpcursor.pos(tmpcursor.pos() + 1);
2273 if (tmpcursor.pos() == tmpcursor.par()->size()) {
2274 if (tmpcursor.par()->next()) {
2275 tmpcursor.par(tmpcursor.par()->next());
2279 tmpcursor.pos(tmpcursor.pos() + 1);
2280 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2284 // Skip initial whitespace at end of word and move cursor to *start*
2285 // of prior word, not to end of next prior word.
2286 void LyXText::cursorLeftOneWord(BufferView * bview) const
2288 LyXCursor tmpcursor = cursor;
2289 cursorLeftOneWord(tmpcursor);
2290 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2294 void LyXText::cursorLeftOneWord(LyXCursor & cur) const
2296 // treat HFills, floats and Insets as words
2299 && (cur.par()->isSeparator(cur.pos() - 1)
2300 || cur.par()->isKomma(cur.pos() - 1))
2301 && !(cur.par()->isHfill(cur.pos() - 1)
2302 || cur.par()->isInset(cur.pos() - 1)))
2303 cur.pos(cur.pos() - 1);
2306 && (cur.par()->isInset(cur.pos() - 1)
2307 || cur.par()->isHfill(cur.pos() - 1))) {
2308 cur.pos(cur.pos() - 1);
2309 } else if (!cur.pos()) {
2310 if (cur.par()->previous()) {
2311 cur.par(cur.par()->previous());
2312 cur.pos(cur.par()->size());
2314 } else { // Here, cur != 0
2315 while (cur.pos() > 0 &&
2316 cur.par()->isWord(cur.pos()-1))
2317 cur.pos(cur.pos() - 1);
2322 // Select current word. This depends on behaviour of
2323 // CursorLeftOneWord(), so it is patched as well.
2324 void LyXText::getWord(LyXCursor & from, LyXCursor & to,
2325 word_location const loc) const
2327 // first put the cursor where we wana start to select the word
2330 case WHOLE_WORD_STRICT:
2331 if (cursor.pos() == 0 || cursor.pos() == cursor.par()->size()
2332 || cursor.par()->isSeparator(cursor.pos())
2333 || cursor.par()->isKomma(cursor.pos())
2334 || cursor.par()->isSeparator(cursor.pos() -1)
2335 || cursor.par()->isKomma(cursor.pos() -1)) {
2339 // no break here, we go to the next
2342 // Move cursor to the beginning, when not already there.
2343 if (from.pos() && !from.par()->isSeparator(from.pos() - 1)
2344 && !from.par()->isKomma(from.pos() - 1))
2345 cursorLeftOneWord(from);
2348 // always move the cursor to the beginning of previous word
2349 cursorLeftOneWord(from);
2352 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet\n";
2358 while (to.pos() < to.par()->size()
2359 && !to.par()->isSeparator(to.pos())
2360 && !to.par()->isKomma(to.pos())
2361 && !to.par()->isHfill(to.pos())
2362 && !to.par()->isInset(to.pos()))
2364 to.pos(to.pos() + 1);
2369 void LyXText::selectWord(BufferView * bview, word_location const loc)
2373 getWord(from, to, loc);
2375 setCursor(bview, from.par(), from.pos());
2378 selection.cursor = cursor;
2379 setCursor(bview, to.par(), to.pos());
2380 setSelection(bview);
2384 // Select the word currently under the cursor when no
2385 // selection is currently set
2386 bool LyXText::selectWordWhenUnderCursor(BufferView * bview,
2387 word_location const loc)
2389 if (!selection.set()) {
2390 selectWord(bview, loc);
2391 return selection.set();
2397 // This function is only used by the spellchecker for NextWord().
2398 // It doesn't handle LYX_ACCENTs and probably never will.
2400 LyXText::selectNextWordToSpellcheck(BufferView * bview, float & value) const
2402 if (the_locking_inset) {
2403 WordLangTuple word = the_locking_inset->selectNextWordToSpellcheck(bview, value);
2404 if (!word.word().empty()) {
2405 value += float(cursor.y())/float(height);
2408 // we have to go on checking so move cursor to the next char
2409 if (cursor.pos() == cursor.par()->size()) {
2410 if (!cursor.par()->next())
2412 cursor.par(cursor.par()->next());
2415 cursor.pos(cursor.pos() + 1);
2417 Paragraph * tmppar = cursor.par();
2419 // If this is not the very first word, skip rest of
2420 // current word because we are probably in the middle
2421 // of a word if there is text here.
2422 if (cursor.pos() || cursor.par()->previous()) {
2423 while (cursor.pos() < cursor.par()->size()
2424 && cursor.par()->isLetter(cursor.pos()))
2425 cursor.pos(cursor.pos() + 1);
2428 // Now, skip until we have real text (will jump paragraphs)
2429 while ((cursor.par()->size() > cursor.pos()
2430 && (!cursor.par()->isLetter(cursor.pos()))
2431 && (!cursor.par()->isInset(cursor.pos()) ||
2432 !cursor.par()->getInset(cursor.pos())->allowSpellcheck()))
2433 || (cursor.par()->size() == cursor.pos()
2434 && cursor.par()->next()))
2436 if (cursor.pos() == cursor.par()->size()) {
2437 cursor.par(cursor.par()->next());
2440 cursor.pos(cursor.pos() + 1);
2443 // now check if we hit an inset so it has to be a inset containing text!
2444 if (cursor.pos() < cursor.par()->size() &&
2445 cursor.par()->isInset(cursor.pos()))
2448 cursor.par()->getInset(cursor.pos())->edit(bview);
2449 // now call us again to do the above trick
2450 // but obviously we have to start from down below ;)
2451 return bview->text->selectNextWordToSpellcheck(bview, value);
2454 // Update the value if we changed paragraphs
2455 if (cursor.par() != tmppar) {
2456 setCursor(bview, cursor.par(), cursor.pos());
2457 value = float(cursor.y())/float(height);
2460 // Start the selection from here
2461 selection.cursor = cursor;
2464 getFont(bview->buffer(), cursor.par(), cursor.pos())
2465 .language()->code());
2466 // and find the end of the word (insets like optional hyphens
2467 // and ligature break are part of a word)
2468 while (cursor.pos() < cursor.par()->size()
2469 && (cursor.par()->isLetter(cursor.pos())))
2470 cursor.pos(cursor.pos() + 1);
2472 // Finally, we copy the word to a string and return it
2474 if (selection.cursor.pos() < cursor.pos()) {
2476 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
2477 if (!cursor.par()->isInset(i))
2478 str += cursor.par()->getChar(i);
2481 return WordLangTuple(str, lang_code);
2485 // This one is also only for the spellchecker
2486 void LyXText::selectSelectedWord(BufferView * bview)
2488 if (the_locking_inset) {
2489 the_locking_inset->selectSelectedWord(bview);
2492 // move cursor to the beginning
2493 setCursor(bview, selection.cursor.par(), selection.cursor.pos());
2495 // set the sel cursor
2496 selection.cursor = cursor;
2498 // now find the end of the word
2499 while (cursor.pos() < cursor.par()->size()
2500 && (cursor.par()->isLetter(cursor.pos())))
2501 cursor.pos(cursor.pos() + 1);
2503 setCursor(bview, cursor.par(), cursor.pos());
2505 // finally set the selection
2506 setSelection(bview);
2510 // Delete from cursor up to the end of the current or next word.
2511 void LyXText::deleteWordForward(BufferView * bview)
2513 if (cursor.par()->empty())
2516 LyXCursor tmpcursor = cursor;
2517 tmpcursor.row(0); //Â ??
2518 selection.set(true); // to avoid deletion
2519 cursorRightOneWord(bview);
2520 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2521 selection.cursor = cursor;
2523 setSelection(bview);
2525 // Great, CutSelection() gets rid of multiple spaces.
2526 cutSelection(bview, true, false);
2531 // Delete from cursor to start of current or prior word.
2532 void LyXText::deleteWordBackward(BufferView * bview)
2534 if (cursor.par()->empty())
2537 LyXCursor tmpcursor = cursor;
2538 tmpcursor.row(0); // ??
2539 selection.set(true); // to avoid deletion
2540 cursorLeftOneWord(bview);
2541 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2542 selection.cursor = cursor;
2544 setSelection(bview);
2545 cutSelection(bview, true, false);
2550 // Kill to end of line.
2551 void LyXText::deleteLineForward(BufferView * bview)
2553 if (cursor.par()->empty())
2554 // Paragraph is empty, so we just go to the right
2557 LyXCursor tmpcursor = cursor;
2558 // We can't store the row over a regular setCursor
2559 // so we set it to 0 and reset it afterwards.
2560 tmpcursor.row(0); //Â ??
2561 selection.set(true); // to avoid deletion
2563 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2564 selection.cursor = cursor;
2566 setSelection(bview);
2567 // What is this test for ??? (JMarc)
2568 if (!selection.set()) {
2569 deleteWordForward(bview);
2571 cutSelection(bview, true, false);
2577 // Change the case of a word at cursor position.
2578 // This function directly manipulates Paragraph::text because there
2579 // is no Paragraph::SetChar currently. I did what I could to ensure
2580 // that it is correct. I guess part of it should be moved to
2581 // Paragraph, but it will have to change for 1.1 anyway. At least
2582 // it does not access outside of the allocated array as the older
2583 // version did. (JMarc)
2584 void LyXText::changeCase(BufferView * bview, LyXText::TextCase action)
2589 if (selection.set()) {
2590 from = selection.start;
2593 getWord(from, to, PARTIAL_WORD);
2594 setCursor(bview, to.par(), to.pos() + 1);
2597 changeRegionCase(bview, from, to, action);
2601 void LyXText::changeRegionCase(BufferView * bview,
2602 LyXCursor const & from,
2603 LyXCursor const & to,
2604 LyXText::TextCase action)
2606 lyx::Assert(from <= to);
2608 setUndo(bview, Undo::FINISH, from.par(), to.par()->next());
2610 pos_type pos = from.pos();
2611 Paragraph * par = from.par();
2613 while (par && (pos != to.pos() || par != to.par())) {
2614 if (pos == par->size()) {
2619 unsigned char c = par->getChar(pos);
2620 if (!IsInsetChar(c) && !IsHfillChar(c)) {
2622 case text_lowercase:
2625 case text_capitalization:
2627 action = text_lowercase;
2629 case text_uppercase:
2634 par->setChar(pos, c);
2635 checkParagraph(bview, par, pos);
2639 if (to.row() != from.row()) {
2640 refresh_y = from.y() - from.row()->baseline();
2641 refresh_row = from.row();
2642 status(bview, LyXText::NEED_MORE_REFRESH);
2647 void LyXText::transposeChars(BufferView & bview)
2649 Paragraph * tmppar = cursor.par();
2651 setUndo(&bview, Undo::FINISH, tmppar, tmppar->next());
2653 pos_type tmppos = cursor.pos();
2655 // First decide if it is possible to transpose at all
2657 // We are at the beginning of a paragraph.
2658 if (tmppos == 0) return;
2660 // We are at the end of a paragraph.
2661 if (tmppos == tmppar->size() - 1) return;
2663 unsigned char c1 = tmppar->getChar(tmppos);
2664 unsigned char c2 = tmppar->getChar(tmppos - 1);
2666 if (c1 != Paragraph::META_INSET
2667 && c2 != Paragraph::META_INSET) {
2668 tmppar->setChar(tmppos, c2);
2669 tmppar->setChar(tmppos - 1, c1);
2671 // We should have an implementation that handles insets
2672 // as well, but that will have to come later. (Lgb)
2673 checkParagraph(const_cast<BufferView*>(&bview), tmppar, tmppos);
2677 void LyXText::Delete(BufferView * bview)
2679 // this is a very easy implementation
2681 LyXCursor old_cursor = cursor;
2682 int const old_cur_par_id = old_cursor.par()->id();
2683 int const old_cur_par_prev_id = old_cursor.par()->previous() ?
2684 old_cursor.par()->previous()->id() : 0;
2686 // just move to the right
2689 // CHECK Look at the comment here.
2690 // This check is not very good...
2691 // The cursorRightIntern calls DeleteEmptyParagrapgMechanism
2692 // and that can very well delete the par or par->previous in
2693 // old_cursor. Will a solution where we compare paragraph id's
2695 if ((cursor.par()->previous() ? cursor.par()->previous()->id() : 0)
2696 == old_cur_par_prev_id
2697 && cursor.par()->id() != old_cur_par_id) {
2698 // delete-empty-paragraph-mechanism has done it
2702 // if you had success make a backspace
2703 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
2704 LyXCursor tmpcursor = cursor;
2705 // to make sure undo gets the right cursor position
2706 cursor = old_cursor;
2707 setUndo(bview, Undo::DELETE,
2708 cursor.par(), cursor.par()->next());
2715 void LyXText::backspace(BufferView * bview)
2717 // Get the font that is used to calculate the baselineskip
2718 pos_type lastpos = cursor.par()->size();
2719 LyXFont rawparfont =
2720 cursor.par()->getFontSettings(bview->buffer()->params,
2723 if (cursor.pos() == 0) {
2724 // The cursor is at the beginning of a paragraph,
2725 // so the the backspace will collapse two paragraphs into one.
2727 // we may paste some paragraphs
2729 // is it an empty paragraph?
2732 || (lastpos == 1 && cursor.par()->isSeparator(0)))) {
2733 // This is an empty paragraph and we delete it just by moving the cursor one step
2734 // left and let the DeleteEmptyParagraphMechanism handle the actual deletion
2735 // of the paragraph.
2737 if (cursor.par()->previous()) {
2738 Paragraph * tmppar = cursor.par()->previous();
2739 if (cursor.par()->layout() == tmppar->layout()
2740 && cursor.par()->getAlign() == tmppar->getAlign()) {
2741 // Inherit bottom DTD from the paragraph below.
2742 // (the one we are deleting)
2743 tmppar->params().lineBottom(cursor.par()->params().lineBottom());
2744 tmppar->params().spaceBottom(cursor.par()->params().spaceBottom());
2745 tmppar->params().pagebreakBottom(cursor.par()->params().pagebreakBottom());
2750 // the layout things can change the height of a row !
2751 int const tmpheight = cursor.row()->height();
2752 setHeightOfRow(bview, cursor.row());
2753 if (cursor.row()->height() != tmpheight) {
2754 refresh_y = cursor.y() - cursor.row()->baseline();
2755 refresh_row = cursor.row();
2756 status(bview, LyXText::NEED_MORE_REFRESH);
2762 if (cursor.par()->previous()) {
2763 setUndo(bview, Undo::DELETE,
2764 cursor.par()->previous(), cursor.par()->next());
2767 Paragraph * tmppar = cursor.par();
2768 Row * tmprow = cursor.row();
2770 // We used to do cursorLeftIntern() here, but it is
2771 // not a good idea since it triggers the auto-delete
2772 // mechanism. So we do a cursorLeftIntern()-lite,
2773 // without the dreaded mechanism. (JMarc)
2774 if (cursor.par()->previous()) {
2775 // steps into the above paragraph.
2776 setCursorIntern(bview, cursor.par()->previous(),
2777 cursor.par()->previous()->size(),
2781 // Pasting is not allowed, if the paragraphs have different
2782 // layout. I think it is a real bug of all other
2783 // word processors to allow it. It confuses the user.
2784 // Even so with a footnote paragraph and a non-footnote
2785 // paragraph. I will not allow pasting in this case,
2786 // because the user would be confused if the footnote behaves
2787 // different wether it is open or closed.
2789 // Correction: Pasting is always allowed with standard-layout
2790 LyXTextClass const & tclass =
2791 bview->buffer()->params.getLyXTextClass();
2793 if (cursor.par() != tmppar
2794 && (cursor.par()->layout() == tmppar->layout()
2795 || tmppar->layout() == tclass.defaultLayout())
2796 && cursor.par()->getAlign() == tmppar->getAlign()) {
2797 removeParagraph(tmprow);
2799 cursor.par()->pasteParagraph(bview->buffer()->params);
2801 if (!cursor.pos() || !cursor.par()->isSeparator(cursor.pos() - 1))
2802 ; //cursor.par()->insertChar(cursor.pos(), ' ');
2803 // strangely enough it seems that commenting out the line above removes
2804 // most or all of the segfaults. I will however also try to move the
2805 // two Remove... lines in front of the PasteParagraph too.
2808 cursor.pos(cursor.pos() - 1);
2810 status(bview, LyXText::NEED_MORE_REFRESH);
2811 refresh_row = cursor.row();
2812 refresh_y = cursor.y() - cursor.row()->baseline();
2814 // remove the lost paragraph
2815 // This one is not safe, since the paragraph that the tmprow and the
2816 // following rows belong to has been deleted by the PasteParagraph
2817 // above. The question is... could this be moved in front of the
2819 //RemoveParagraph(tmprow);
2820 //RemoveRow(tmprow);
2822 // This rebuilds the rows.
2823 appendParagraph(bview, cursor.row());
2824 updateCounters(bview);
2826 // the row may have changed, block, hfills etc.
2827 setCursor(bview, cursor.par(), cursor.pos(), false);
2830 // this is the code for a normal backspace, not pasting
2832 setUndo(bview, Undo::DELETE,
2833 cursor.par(), cursor.par()->next());
2834 // We used to do cursorLeftIntern() here, but it is
2835 // not a good idea since it triggers the auto-delete
2836 // mechanism. So we do a cursorLeftIntern()-lite,
2837 // without the dreaded mechanism. (JMarc)
2838 setCursorIntern(bview, cursor.par(), cursor.pos()- 1,
2839 false, cursor.boundary());
2841 // some insets are undeletable here
2842 if (cursor.par()->isInset(cursor.pos())) {
2843 if (!cursor.par()->getInset(cursor.pos())->deletable())
2845 // force complete redo when erasing display insets
2846 // this is a cruel method but safe..... Matthias
2847 if (cursor.par()->getInset(cursor.pos())->display() ||
2848 cursor.par()->getInset(cursor.pos())->needFullRow()) {
2849 cursor.par()->erase(cursor.pos());
2850 redoParagraph(bview);
2855 Row * row = cursor.row();
2856 int y = cursor.y() - row->baseline();
2858 // remember that a space at the end of a row doesnt count
2859 // when calculating the fill
2860 if (cursor.pos() < rowLast(row) ||
2861 !cursor.par()->isLineSeparator(cursor.pos())) {
2862 row->fill(row->fill() + singleWidth(bview,
2867 // some special code when deleting a newline. This is similar
2868 // to the behavior when pasting paragraphs
2869 if (cursor.pos() && cursor.par()->isNewline(cursor.pos())) {
2870 cursor.par()->erase(cursor.pos());
2871 // refresh the positions
2873 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2874 tmprow = tmprow->next();
2875 tmprow->pos(tmprow->pos() - 1);
2877 if (cursor.par()->isLineSeparator(cursor.pos() - 1))
2878 cursor.pos(cursor.pos() - 1);
2880 if (cursor.pos() < cursor.par()->size()
2881 && !cursor.par()->isSeparator(cursor.pos())) {
2882 cursor.par()->insertChar(cursor.pos(), ' ');
2883 setCharFont(bview->buffer(), cursor.par(),
2884 cursor.pos(), current_font);
2885 // refresh the positions
2887 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2888 tmprow = tmprow->next();
2889 tmprow->pos(tmprow->pos() + 1);
2893 cursor.par()->erase(cursor.pos());
2895 // refresh the positions
2897 while (tmprow->next()
2898 && tmprow->next()->par() == row->par()) {
2899 tmprow = tmprow->next();
2900 tmprow->pos(tmprow->pos() - 1);
2903 // delete newlines at the beginning of paragraphs
2904 while (!cursor.par()->empty() &&
2905 cursor.par()->isNewline(cursor.pos()) &&
2906 cursor.pos() == beginningOfMainBody(bview->buffer(),
2908 cursor.par()->erase(cursor.pos());
2909 // refresh the positions
2911 while (tmprow->next() &&
2912 tmprow->next()->par() == row->par()) {
2913 tmprow = tmprow->next();
2914 tmprow->pos(tmprow->pos() - 1);
2919 // is there a break one row above
2920 if (row->previous() && row->previous()->par() == row->par()) {
2921 z = nextBreakPoint(bview, row->previous(),
2923 if (z >= row->pos()) {
2926 Row * tmprow = row->previous();
2928 // maybe the current row is now empty
2929 if (row->pos() >= row->par()->size()) {
2934 breakAgainOneRow(bview, row);
2935 if (row->next() && row->next()->par() == row->par())
2936 need_break_row = row->next();
2941 // set the dimensions of the row above
2942 y -= tmprow->height();
2943 tmprow->fill(fill(bview, tmprow,
2945 setHeightOfRow(bview, tmprow);
2948 refresh_row = tmprow;
2949 status(bview, LyXText::NEED_MORE_REFRESH);
2950 setCursor(bview, cursor.par(), cursor.pos(),
2951 false, cursor.boundary());
2952 //current_font = rawtmpfont;
2953 //real_current_font = realtmpfont;
2954 // check, whether the last character's font has changed.
2956 cursor.par()->getFontSettings(bview->buffer()->params,
2957 cursor.par()->size() - 1))
2958 redoHeightOfParagraph(bview, cursor);
2963 // break the cursor row again
2964 if (row->next() && row->next()->par() == row->par() &&
2965 (rowLast(row) == row->par()->size() - 1 ||
2966 nextBreakPoint(bview, row, workWidth(bview)) != rowLast(row))) {
2968 // it can happen that a paragraph loses one row
2969 // without a real breakup. This is when a word
2970 // is to long to be broken. Well, I don t care this
2972 if (rowLast(row) == row->par()->size() - 1)
2973 removeRow(row->next());
2977 status(bview, LyXText::NEED_MORE_REFRESH);
2979 breakAgainOneRow(bview, row);
2980 // will the cursor be in another row now?
2981 if (row->next() && row->next()->par() == row->par() &&
2982 rowLast(row) <= cursor.pos()) {
2984 breakAgainOneRow(bview, row);
2987 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
2989 if (row->next() && row->next()->par() == row->par())
2990 need_break_row = row->next();
2994 // set the dimensions of the row
2995 row->fill(fill(bview, row, workWidth(bview)));
2996 int const tmpheight = row->height();
2997 setHeightOfRow(bview, row);
2998 if (tmpheight == row->height())
2999 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
3001 status(bview, LyXText::NEED_MORE_REFRESH);
3004 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
3008 // current_font = rawtmpfont;
3009 // real_current_font = realtmpfont;
3011 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
3012 != cursor.boundary())
3013 setCursor(bview, cursor.par(), cursor.pos(), false,
3014 !cursor.boundary());
3016 lastpos = cursor.par()->size();
3017 if (cursor.pos() == lastpos)
3018 setCurrentFont(bview);
3020 // check, whether the last characters font has changed.
3022 cursor.par()->getFontSettings(bview->buffer()->params, lastpos - 1)) {
3023 redoHeightOfParagraph(bview, cursor);
3025 // now the special right address boxes
3026 if (cursor.par()->layout()->margintype
3027 == MARGIN_RIGHT_ADDRESS_BOX) {
3028 redoDrawingOfParagraph(bview, cursor);
3034 bool LyXText::paintRowBackground(DrawRowParams & p)
3036 bool clear_area = true;
3038 LyXFont font(LyXFont::ALL_SANE);
3040 pos_type const last = rowLastPrintable(p.row);
3042 if (!p.bv->screen().forceClear() && last == p.row->pos()
3043 && p.row->par()->isInset(p.row->pos())) {
3044 inset = p.row->par()->getInset(p.row->pos());
3046 clear_area = inset->doClearArea();
3056 int const y = p.yo < 0 ? 0 : p.yo;
3057 int const h = p.yo < 0 ? p.row->height() + p.yo : p.row->height();
3058 p.pain->fillRectangle(x, y, p.width, h, backgroundColor());
3065 int h = p.row->baseline() - inset->ascent(p.bv, font);
3067 // first clear the whole row above the inset!
3069 p.pain->fillRectangle(p.xo, p.yo, p.width, h, backgroundColor());
3072 // clear the space below the inset!
3073 h += inset->ascent(p.bv, font) + inset->descent(p.bv, font);
3074 if ((p.row->height() - h) > 0) {
3075 p.pain->fillRectangle(p.xo, p.yo + h,
3076 p.width, p.row->height() - h, backgroundColor());
3079 // clear the space behind the inset, if needed
3080 if (!inset->display() && !inset->needFullRow()) {
3081 int const xp = int(p.x) + inset->width(p.bv, font);
3082 if (p.width - xp > 0) {
3083 p.pain->fillRectangle(xp, p.yo, p.width - xp,
3084 p.row->height(), backgroundColor());
3092 void LyXText::paintRowSelection(DrawRowParams & p)
3094 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3096 // the current selection
3097 int const startx = selection.start.x();
3098 int const endx = selection.end.x();
3099 int const starty = selection.start.y();
3100 int const endy = selection.end.y();
3101 Row const * startrow = selection.start.row();
3102 Row const * endrow = selection.end.row();
3106 if (bidi_same_direction) {
3110 int h = row->height();
3112 if (startrow == row && endrow == row) {
3113 if (startx < endx) {
3116 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3120 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3122 } else if (startrow == row) {
3123 int const x = (is_rtl) ? p.xo : (p.xo + startx);
3124 int const w = (is_rtl) ? startx : (p.width - startx);
3125 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3126 } else if (endrow == row) {
3127 int const x = (is_rtl) ? (p.xo + endx) : p.xo;
3128 int const w = (is_rtl) ? (p.width - endx) : endx;
3129 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3130 } else if (p.y > starty && p.y < endy) {
3131 p.pain->fillRectangle(p.xo, y, p.width, h, LColor::selection);
3134 } else if (startrow != row && endrow != row) {
3135 if (p.y > starty && p.y < endy) {
3137 int h = row->height();
3138 p.pain->fillRectangle(p.xo, p.yo, w, h, LColor::selection);
3143 if ((startrow != row && !is_rtl) || (endrow != row && is_rtl))
3144 p.pain->fillRectangle(p.xo, p.yo, int(p.x), row->height(), LColor::selection);
3146 Buffer const * buffer = p.bv->buffer();
3147 Paragraph * par = row->par();
3148 pos_type main_body = beginningOfMainBody(buffer, par);
3149 pos_type const last = rowLastPrintable(row);
3152 for (pos_type vpos = row->pos(); vpos <= last; ++vpos) {
3153 pos_type pos = vis2log(vpos);
3154 float const old_tmpx = tmpx;
3155 if (main_body > 0 && pos == main_body - 1) {
3156 LyXLayout_ptr const & layout = par->layout();
3157 LyXFont const lfont = getLabelFont(buffer, par);
3159 tmpx += p.label_hfill + font_metrics::width(layout->labelsep, lfont);
3161 if (par->isLineSeparator(main_body - 1))
3162 tmpx -= singleWidth(p.bv, par, main_body - 1);
3165 if (hfillExpansion(buffer, row, pos)) {
3166 tmpx += singleWidth(p.bv, par, pos);
3167 if (pos >= main_body)
3170 tmpx += p.label_hfill;
3173 else if (par->isSeparator(pos)) {
3174 tmpx += singleWidth(p.bv, par, pos);
3175 if (pos >= main_body)
3176 tmpx += p.separator;
3178 tmpx += singleWidth(p.bv, par, pos);
3181 if ((startrow != row || selection.start.pos() <= pos) &&
3182 (endrow != row || pos < selection.end.pos())) {
3183 // Here we do not use p.x as p.xo was added to p.x.
3184 p.pain->fillRectangle(int(old_tmpx), p.yo,
3185 int(tmpx - old_tmpx + 1),
3186 row->height(), LColor::selection);
3190 if ((startrow != row && is_rtl) || (endrow != row && !is_rtl)) {
3191 p.pain->fillRectangle(p.xo + int(tmpx),
3192 p.yo, int(p.bv->workWidth() - tmpx),
3193 row->height(), LColor::selection);
3198 void LyXText::paintRowAppendix(DrawRowParams & p)
3200 // FIXME: can be just p.width ?
3201 int const ww = p.bv->workWidth();
3202 Paragraph * firstpar = p.row->par();
3204 if (firstpar->params().appendix()) {
3205 p.pain->line(1, p.yo, 1, p.yo + p.row->height(), LColor::appendixline);
3206 p.pain->line(ww - 2, p.yo, ww - 2, p.yo + p.row->height(), LColor::appendixline);
3211 void LyXText::paintRowDepthBar(DrawRowParams & p)
3213 Paragraph::depth_type const depth = p.row->par()->getDepth();
3218 Paragraph::depth_type prev_depth = 0;
3219 if (p.row->previous())
3220 prev_depth = p.row->previous()->par()->getDepth();
3221 Paragraph::depth_type next_depth = 0;
3223 next_depth = p.row->next()->par()->getDepth();
3225 for (Paragraph::depth_type i = 1; i <= depth; ++i) {
3226 int const x = (LYX_PAPER_MARGIN / 5) * i + p.xo;
3227 int const h = p.yo + p.row->height() - 1 - (i - next_depth - 1) * 3;
3229 p.pain->line(x, p.yo, x, h, LColor::depthbar);
3231 int const w = LYX_PAPER_MARGIN / 5;
3233 if (i > prev_depth) {
3234 p.pain->fillRectangle(x, p.yo, w, 2, LColor::depthbar);
3236 if (i > next_depth) {
3237 p.pain->fillRectangle(x, h, w, 2, LColor::depthbar);
3243 int LyXText::getLengthMarkerHeight(BufferView * bv, VSpace const & vsp) const
3245 int const arrow_size = 4;
3246 int const space_size = int(vsp.inPixels(bv));
3248 if (vsp.kind() != VSpace::LENGTH) {
3254 int const min_size = max(3 * arrow_size,
3255 font_metrics::maxAscent(font)
3256 + font_metrics::maxDescent(font));
3258 if (vsp.length().len().value() < 0.0)
3261 return max(min_size, space_size);
3265 int LyXText::drawLengthMarker(DrawRowParams & p, string const & prefix,
3266 VSpace const & vsp, int start)
3268 int const arrow_size = 4;
3269 int const size = getLengthMarkerHeight(p.bv, vsp);
3270 int const end = start + size;
3272 // the label to display (if any)
3274 // y-values for top arrow
3276 // y-values for bottom arrow
3278 switch (vsp.kind()) {
3279 case VSpace::LENGTH:
3281 str = prefix + " (" + vsp.asLyXCommand() + ")";
3282 // adding or removing space
3283 bool const added = !(vsp.length().len().value() < 0.0);
3284 ty1 = added ? (start + arrow_size) : start;
3285 ty2 = added ? start : (start + arrow_size);
3286 by1 = added ? (end - arrow_size) : end;
3287 by2 = added ? end : (end - arrow_size);
3290 case VSpace:: VFILL:
3291 str = prefix + " (vertical fill)";
3296 // nothing to draw here
3300 int const leftx = p.xo + leftMargin(p.bv, p.row);
3301 int const midx = leftx + arrow_size;
3302 int const rightx = midx + arrow_size;
3310 font.setColor(LColor::added_space).decSize();
3311 font_metrics::rectText(str, font, w, a, d);
3313 p.pain->rectText(leftx + 2 * arrow_size + 5,
3314 start + ((end - start) / 2) + d,
3318 p.pain->line(leftx, ty1, midx, ty2, LColor::added_space);
3319 p.pain->line(midx, ty2, rightx, ty1, LColor::added_space);
3322 p.pain->line(leftx, by1, midx, by2, LColor::added_space);
3323 p.pain->line(midx, by2, rightx, by1, LColor::added_space);
3326 p.pain->line(midx, ty2, midx, by2, LColor::added_space);
3332 int LyXText::paintPageBreak(string const & label, int y, DrawRowParams & p)
3335 pb_font.setColor(LColor::pagebreak).decSize();
3340 font_metrics::rectText(label, pb_font, w, a, d);
3342 int const text_start = p.xo + ((p.width - w) / 2);
3343 int const text_end = text_start + w;
3345 p.pain->rectText(text_start, y + d, label, pb_font);
3347 p.pain->line(p.xo, y, text_start, y,
3348 LColor::pagebreak, Painter::line_onoffdash);
3349 p.pain->line(text_end, y, p.xo + p.width, y,
3350 LColor::pagebreak, Painter::line_onoffdash);
3352 return 3 * defaultHeight();
3356 void LyXText::paintFirstRow(DrawRowParams & p)
3358 Paragraph * par = p.row->par();
3359 ParagraphParameters const & parparams = par->params();
3361 // start of appendix?
3362 if (parparams.startOfAppendix()) {
3363 p.pain->line(1, p.yo, p.width - 2, p.yo, LColor::appendixline);
3368 // think about the margins
3369 if (!p.row->previous() && bv_owner)
3370 y_top += LYX_PAPER_MARGIN;
3372 // draw a top pagebreak
3373 if (parparams.pagebreakTop()) {
3374 y_top += paintPageBreak(_("Page Break (top)"),
3375 p.yo + y_top + 2 * defaultHeight(), p);
3378 // draw the additional space if needed:
3379 y_top += drawLengthMarker(p, _("Space above"),
3380 parparams.spaceTop(), p.yo + y_top);
3382 Buffer const * buffer = p.bv->buffer();
3384 LyXLayout_ptr const & layout = par->layout();
3386 // think about the parskip
3387 // some parskips VERY EASY IMPLEMENTATION
3388 if (buffer->params.paragraph_separation == BufferParams::PARSEP_SKIP) {
3389 if (par->previous()) {
3390 if (layout->latextype == LATEX_PARAGRAPH
3391 && !par->getDepth()) {
3392 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3394 LyXLayout_ptr const & playout =
3395 par->previous()->layout();
3396 if (playout->latextype == LATEX_PARAGRAPH
3397 && !par->previous()->getDepth()) {
3398 // is it right to use defskip here, too? (AS)
3399 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3405 int const ww = p.bv->workWidth();
3408 if (parparams.lineTop()) {
3409 LyXFont font(LyXFont::ALL_SANE);
3410 int const asc = font_metrics::ascent('x', getFont(buffer, par, 0));
3414 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3415 int const xp = static_cast<int>(inset_owner ? p.xo : 0);
3416 p.pain->line(xp, p.yo + y_top, xp + w, p.yo + y_top,
3417 LColor::topline, Painter::line_solid,
3418 Painter::line_thick);
3423 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3425 // should we print a label?
3426 if (layout->labeltype >= LABEL_STATIC
3427 && (layout->labeltype != LABEL_STATIC
3428 || layout->latextype != LATEX_ENVIRONMENT
3429 || par->isFirstInSequence())) {
3431 LyXFont font = getLabelFont(buffer, par);
3432 if (!par->getLabelstring().empty()) {
3434 string const str = par->getLabelstring();
3436 // this is special code for the chapter layout. This is
3437 // printed in an extra row and has a pagebreak at
3439 if (layout->labeltype == LABEL_COUNTER_CHAPTER) {
3440 if (buffer->params.secnumdepth >= 0) {
3441 float spacing_val = 1.0;
3442 if (!parparams.spacing().isDefault()) {
3443 spacing_val = parparams.spacing().getValue();
3445 spacing_val = buffer->params.spacing.getValue();
3449 int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val)
3450 + int(layout->parsep) * defaultHeight();
3453 x = ww - leftMargin(p.bv, p.row) -
3454 font_metrics::width(str, font);
3457 p.pain->text(int(x),
3458 p.yo + p.row->baseline() -
3459 p.row->ascent_of_text() - maxdesc,
3464 x = ww - leftMargin(p.bv, p.row)
3465 + font_metrics::width(layout->labelsep, font);
3467 x = p.x - font_metrics::width(layout->labelsep, font)
3468 - font_metrics::width(str, font);
3471 p.pain->text(int(x), p.yo + p.row->baseline(), str, font);
3474 // the labels at the top of an environment.
3475 // More or less for bibliography
3476 } else if (par->isFirstInSequence() &&
3477 (layout->labeltype == LABEL_TOP_ENVIRONMENT ||
3478 layout->labeltype == LABEL_BIBLIO ||
3479 layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
3480 LyXFont font = getLabelFont(buffer, par);
3481 if (!par->getLabelstring().empty()) {
3482 string const str = par->getLabelstring();
3483 float spacing_val = 1.0;
3484 if (!parparams.spacing().isDefault()) {
3485 spacing_val = parparams.spacing().getValue();
3487 spacing_val = buffer->params.spacing.getValue();
3491 int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val
3492 + (layout->labelbottomsep * defaultHeight()));
3495 if (layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
3496 x = ((is_rtl ? leftMargin(p.bv, p.row) : p.x)
3497 + ww - rightMargin(buffer, p.row)) / 2;
3498 x -= font_metrics::width(str, font) / 2;
3499 } else if (is_rtl) {
3500 x = ww - leftMargin(p.bv, p.row) -
3501 font_metrics::width(str, font);
3503 p.pain->text(int(x), p.yo + p.row->baseline()
3504 - p.row->ascent_of_text() - maxdesc,
3509 if (layout->labeltype == LABEL_BIBLIO && par->bibkey) {
3510 LyXFont font = getLayoutFont(buffer, par);
3513 x = ww - leftMargin(p.bv, p.row)
3514 + font_metrics::width(layout->labelsep, font);
3516 x = p.x - font_metrics::width(layout->labelsep, font)
3517 - par->bibkey->width(p.bv, font);
3519 par->bibkey->draw(p.bv, font, p.yo + p.row->baseline(), x, p.cleared);
3524 void LyXText::paintLastRow(DrawRowParams & p)
3526 Paragraph * par = p.row->par();
3527 ParagraphParameters const & parparams = par->params();
3528 int y_bottom = p.row->height() - 1;
3530 // think about the margins
3531 if (!p.row->next() && bv_owner)
3532 y_bottom -= LYX_PAPER_MARGIN;
3534 int const ww = p.bv->workWidth();
3536 // draw a bottom pagebreak
3537 if (parparams.pagebreakBottom()) {
3538 y_bottom -= paintPageBreak(_("Page Break (bottom)"),
3539 p.yo + y_bottom - 2 * defaultHeight(), p);
3542 // draw the additional space if needed:
3543 int const height = getLengthMarkerHeight(p.bv,
3544 parparams.spaceBottom());
3545 y_bottom -= drawLengthMarker(p, _("Space below"),
3546 parparams.spaceBottom(),
3547 p.yo + y_bottom - height);
3549 Buffer const * buffer = p.bv->buffer();
3551 // draw a bottom line
3552 if (parparams.lineBottom()) {
3553 LyXFont font(LyXFont::ALL_SANE);
3554 int const asc = font_metrics::ascent('x',
3555 getFont(buffer, par,
3556 max(pos_type(0), par->size() - 1)));
3560 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3561 int const xp = static_cast<int>(inset_owner ? p.xo : 0);
3562 int const y = p.yo + y_bottom;
3563 p.pain->line(xp, y, xp + w, y, LColor::topline, Painter::line_solid,
3564 Painter::line_thick);
3569 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3570 int const endlabel = par->getEndLabel();
3575 case END_LABEL_FILLED_BOX:
3577 LyXFont const font = getLabelFont(buffer, par);
3578 int const size = int(0.75 * font_metrics::maxAscent(font));
3579 int const y = (p.yo + p.row->baseline()) - size;
3580 int x = is_rtl ? LYX_PAPER_MARGIN : ww - LYX_PAPER_MARGIN - size;
3582 if (p.row->fill() <= size)
3583 x += (size - p.row->fill() + 1) * (is_rtl ? -1 : 1);
3585 if (endlabel == END_LABEL_BOX) {
3586 p.pain->rectangle(x, y, size, size, LColor::eolmarker);
3588 p.pain->fillRectangle(x, y, size, size,
3593 case END_LABEL_STATIC:
3596 LyXFont font(LyXFont::ALL_SANE);
3597 font = getLabelFont(buffer, par);
3599 LyXFont font = getLabelFont(buffer, par);
3601 string const & str = par->layout()->endlabelstring();
3602 int const x = is_rtl ?
3603 int(p.x) - font_metrics::width(str, font)
3604 : ww - rightMargin(buffer, p.row) - p.row->fill();
3605 p.pain->text(x, p.yo + p.row->baseline(), str, font);
3608 case END_LABEL_NO_LABEL:
3614 void LyXText::paintRowText(DrawRowParams & p)
3616 Paragraph * par = p.row->par();
3617 Buffer const * buffer = p.bv->buffer();
3619 pos_type const last = rowLastPrintable(p.row);
3620 pos_type main_body =
3621 beginningOfMainBody(buffer, par);
3622 if (main_body > 0 &&
3623 (main_body - 1 > last ||
3624 !par->isLineSeparator(main_body - 1))) {
3628 LyXLayout_ptr const & layout = par->layout();
3630 pos_type vpos = p.row->pos();
3631 while (vpos <= last) {
3632 if (p.x > p.bv->workWidth())
3634 pos_type pos = vis2log(vpos);
3635 if (p.x + singleWidth(p.bv, par, pos) < 0) {
3636 p.x += singleWidth(p.bv, par, pos);
3640 if (main_body > 0 && pos == main_body - 1) {
3641 int const lwidth = font_metrics::width(layout->labelsep,
3642 getLabelFont(buffer, par));
3644 p.x += p.label_hfill + lwidth
3645 - singleWidth(p.bv, par, main_body - 1);
3648 if (par->isHfill(pos)) {
3651 int const y0 = p.yo + p.row->baseline();
3652 int const y1 = y0 - defaultHeight() / 2;
3654 p.pain->line(int(p.x), y1, int(p.x), y0,
3655 LColor::added_space);
3657 if (hfillExpansion(buffer, p.row, pos)) {
3658 int const y2 = (y0 + y1) / 2;
3660 if (pos >= main_body) {
3661 p.pain->line(int(p.x), y2,
3662 int(p.x + p.hfill), y2,
3663 LColor::added_space,
3664 Painter::line_onoffdash);
3667 p.pain->line(int(p.x), y2,
3668 int(p.x + p.label_hfill), y2,
3669 LColor::added_space,
3670 Painter::line_onoffdash);
3671 p.x += p.label_hfill;
3673 p.pain->line(int(p.x), y1,
3675 LColor::added_space);
3679 } else if (par->isSeparator(pos)) {
3680 p.x += singleWidth(p.bv, par, pos);
3681 if (pos >= main_body)
3692 void LyXText::getVisibleRow(BufferView * bv, int y_offset, int x_offset,
3693 Row * row, int y, bool cleared)
3695 if (row->height() <= 0) {
3696 lyxerr << "LYX_ERROR: row.height: "
3697 << row->height() << endl;
3703 // set up drawing parameters
3705 p.pain = &bv->painter();
3709 prepareToPrint(bv, row, p.x, p.separator, p.hfill, p.label_hfill);
3710 if (inset_owner && (p.x < 0))
3714 p.width = inset_owner ? inset_owner->textWidth(bv, true) : bv->workWidth();
3715 p.cleared = cleared;
3719 // clear to background if necessary
3720 p.cleared = paintRowBackground(p);
3722 // paint the selection background
3723 if (selection.set()) {
3724 paintRowSelection(p);
3727 // vertical lines for appendix
3728 paintRowAppendix(p);
3730 // environment depth brackets
3731 paintRowDepthBar(p);
3733 // draw any stuff wanted for a first row of a paragraph
3738 // draw any stuff wanted for the last row of a paragraph
3739 if (!row->next() || (row->next()->par() != row->par())) {
3748 int LyXText::defaultHeight() const
3750 LyXFont font(LyXFont::ALL_SANE);
3751 return int(font_metrics::maxAscent(font)
3752 + font_metrics::maxDescent(font) * 1.5);
3756 // returns the column near the specified x-coordinate of the row
3757 // x is set to the real beginning of this column
3759 LyXText::getColumnNearX(BufferView * bview, Row * row, int & x,
3760 bool & boundary) const
3763 float fill_separator;
3765 float fill_label_hfill;
3767 prepareToPrint(bview, row, tmpx, fill_separator,
3768 fill_hfill, fill_label_hfill);
3770 pos_type vc = row->pos();
3771 pos_type last = rowLastPrintable(row);
3774 LyXLayout_ptr const & layout = row->par()->layout();
3776 bool left_side = false;
3778 pos_type main_body = beginningOfMainBody(bview->buffer(), row->par());
3779 float last_tmpx = tmpx;
3781 if (main_body > 0 &&
3782 (main_body - 1 > last ||
3783 !row->par()->isLineSeparator(main_body - 1)))
3786 while (vc <= last && tmpx <= x) {
3789 if (main_body > 0 && c == main_body-1) {
3790 tmpx += fill_label_hfill +
3791 font_metrics::width(layout->labelsep,
3792 getLabelFont(bview->buffer(), row->par()));
3793 if (row->par()->isLineSeparator(main_body - 1))
3794 tmpx -= singleWidth(bview, row->par(), main_body-1);
3797 if (hfillExpansion(bview->buffer(), row, c)) {
3798 x += singleWidth(bview, row->par(), c);
3802 tmpx += fill_label_hfill;
3804 else if (row->par()->isSeparator(c)) {
3805 tmpx += singleWidth(bview, row->par(), c);
3807 tmpx+= fill_separator;
3809 tmpx += singleWidth(bview, row->par(), c);
3813 if ((tmpx + last_tmpx) / 2 > x) {
3818 if (vc > last + 1) // This shouldn't happen.
3822 bool const lastrow = lyxrc.rtl_support // This is not needed, but gives
3823 // some speedup if rtl_support=false
3824 && (!row->next() || row->next()->par() != row->par());
3825 bool const rtl = (lastrow)
3826 ? row->par()->isRightToLeftPar(bview->buffer()->params)
3827 : false; // If lastrow is false, we don't need to compute
3828 // the value of rtl.
3830 if (row->pos() > last) // Row is empty?
3833 ((rtl && left_side && vc == row->pos() && x < tmpx - 5) ||
3834 (!rtl && !left_side && vc == last + 1 && x > tmpx + 5)))
3836 else if (vc == row->pos()) {
3838 if (bidi_level(c) % 2 == 1)
3841 c = vis2log(vc - 1);
3842 bool const rtl = (bidi_level(c) % 2 == 1);
3843 if (left_side == rtl) {
3845 boundary = isBoundary(bview->buffer(), row->par(), c);
3849 if (row->pos() <= last && c > last
3850 && row->par()->isNewline(last)) {
3851 if (bidi_level(last) % 2 == 0)
3852 tmpx -= singleWidth(bview, row->par(), last);
3854 tmpx += singleWidth(bview, row->par(), last);
3864 // returns pointer to a specified row
3865 Row * LyXText::getRow(Paragraph * par, pos_type pos, int & y) const
3870 Row * tmprow = firstrow;
3873 // find the first row of the specified paragraph
3874 while (tmprow->next() && tmprow->par() != par) {
3875 y += tmprow->height();
3876 tmprow = tmprow->next();
3879 // now find the wanted row
3880 while (tmprow->pos() < pos
3882 && tmprow->next()->par() == par
3883 && tmprow->next()->pos() <= pos) {
3884 y += tmprow->height();
3885 tmprow = tmprow->next();
3892 Row * LyXText::getRowNearY(int & y) const
3895 // If possible we should optimize this method. (Lgb)
3896 Row * tmprow = firstrow;
3899 while (tmprow->next() && tmpy + tmprow->height() <= y) {
3900 tmpy += tmprow->height();
3901 tmprow = tmprow->next();
3904 y = tmpy; // return the real y
3906 //lyxerr << "returned y = " << y << endl;
3910 // Search from the current cursor position.
3912 Row * tmprow = cursor.row();
3913 int tmpy = cursor.y() - tmprow->baseline();
3915 lyxerr << "cursor.y() = " << tmpy << endl;
3916 lyxerr << "tmprow->height() = " << tmprow->height() << endl;
3917 lyxerr << "tmprow->baseline() = " << tmprow->baseline() << endl;
3918 lyxerr << "first = " << first << endl;
3919 lyxerr << "y = " << y << endl;
3922 lyxerr << "up" << endl;
3924 tmpy -= tmprow->height();
3925 tmprow = tmprow->previous();
3926 } while (tmprow && tmpy - tmprow->height() >= y);
3927 } else if (y > tmpy) {
3928 lyxerr << "down" << endl;
3930 while (tmprow->next() && tmpy + tmprow->height() <= y) {
3931 tmpy += tmprow->height();
3932 tmprow = tmprow->next();
3935 lyxerr << "equal" << endl;
3938 y = tmpy; // return the real y
3940 lyxerr << "returned y = " << y << endl;
3948 int LyXText::getDepth() const
3950 return cursor.par()->getDepth();