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 * ====================================================== */
16 #include "paragraph.h"
17 #include "lyx_gui_misc.h"
19 #include "bufferparams.h"
28 #include "lyxscreen.h"
29 #include "bufferview_funcs.h"
30 #include "BufferView.h"
32 #include "ParagraphParameters.h"
33 #include "undo_funcs.h"
36 #include "insets/insetbib.h"
37 #include "insets/insettext.h"
39 #include "support/textutils.h"
40 #include "support/LAssert.h"
41 #include "support/lstrings.h"
53 int const LYX_PAPER_MARGIN = 20;
57 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
60 int LyXText::workWidth(BufferView * bview) const
63 return inset_owner->textWidth(bview);
65 return bview->workWidth();
69 int LyXText::workWidth(BufferView * bview, Inset * inset) const
74 Buffer::inset_iterator it = bview->buffer()->inset_iterator_begin();
75 Buffer::inset_iterator end = bview->buffer()->inset_iterator_end();
76 for ( ; it != end; ++it) {
84 return workWidth(bview);
87 LyXLayout const & layout =
88 textclasslist.Style(bview->buffer()->params.textclass,
91 if (layout.margintype != MARGIN_RIGHT_ADDRESS_BOX) {
92 // Optimization here: in most cases, the real row is
93 // not needed, but only the par/pos values. So we just
94 // construct a dummy row for leftMargin. (JMarc)
98 return workWidth(bview) - leftMargin(bview, &dummyrow);
101 Row * row = getRow(par, pos, dummy_y);
103 while (frow->previous() && frow->par() == frow->previous()->par())
104 frow = frow->previous();
105 unsigned int maxw = 0;
106 while (frow->next() && frow->par() == frow->next()->par()) {
107 if ((frow != row) && (maxw < frow->width()))
108 maxw = frow->width();
114 return workWidth(bview);
118 int LyXText::getRealCursorX(BufferView * bview) const
121 if (the_locking_inset && (the_locking_inset->getLyXText(bview)!=this))
122 x = the_locking_inset->getLyXText(bview)->getRealCursorX(bview);
127 unsigned char LyXText::transformChar(unsigned char c, Paragraph * par,
130 if (!Encodings::is_arabic(c))
131 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && isdigit(c))
132 return c + (0xb0 - '0');
136 unsigned char const prev_char = pos > 0 ? par->getChar(pos-1) : ' ';
137 unsigned char next_char = ' ';
139 for (pos_type i = pos+1; i < par->size(); ++i)
140 if (!Encodings::IsComposeChar_arabic(par->getChar(i))) {
141 next_char = par->getChar(i);
145 if (Encodings::is_arabic(next_char)) {
146 if (Encodings::is_arabic(prev_char))
147 return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
149 return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
151 if (Encodings::is_arabic(prev_char))
152 return Encodings::TransformChar(c, Encodings::FORM_FINAL);
154 return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
158 // This is the comments that some of the warnings below refers to.
159 // There are some issues in this file and I don't think they are
160 // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that
161 // this is a problem that has been here almost from day one and that a
162 // larger userbase with differenct access patters triggers the bad
163 // behaviour. (segfaults.) What I think happen is: In several places
164 // we store the paragraph in the current cursor and then moves the
165 // cursor. This movement of the cursor will delete paragraph at the
166 // old position if it is now empty. This will make the temporary
167 // pointer to the old cursor paragraph invalid and dangerous to use.
168 // And is some cases this will trigger a segfault. I have marked some
169 // of the cases where this happens with a warning, but I am sure there
170 // are others in this file and in text2.C. There is also a note in
171 // Delete() that you should read. In Delete I store the paragraph->id
172 // instead of a pointer to the paragraph. I am pretty sure this faulty
173 // use of temporary pointers to paragraphs that might have gotten
174 // invalidated (through a cursor movement) before they are used, are
175 // the cause of the strange crashes we get reported often.
177 // It is very tiresom to change this code, especially when it is as
178 // hard to read as it is. Help to fix all the cases where this is done
179 // would be greately appreciated.
183 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
186 char const c = par->getChar(pos);
187 return singleWidth(bview, par, pos, c);
191 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
192 pos_type pos, char c) const
194 LyXFont const font = getFont(bview->buffer(), par, pos);
196 // The most common case is handled first (Asger)
197 if (IsPrintable(c)) {
198 if (font.language()->RightToLeft()) {
199 if (font.language()->lang() == "arabic" &&
200 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
201 lyxrc.font_norm_type == LyXRC::ISO_10646_1))
202 if (Encodings::IsComposeChar_arabic(c))
205 c = transformChar(c, par, pos);
206 else if (font.language()->lang() == "hebrew" &&
207 Encodings::IsComposeChar_hebrew(c))
210 return lyxfont::width(c, font);
212 } else if (IsHfillChar(c)) {
213 return 3; /* Because of the representation
214 * as vertical lines */
215 } else if (c == Paragraph::META_INSET) {
216 Inset * tmpinset = par->getInset(pos);
219 // this IS needed otherwise on initialitation we don't get the fill
220 // of the row right (ONLY on initialization if we read a file!)
221 // should be changed! (Jug 20011204)
222 tmpinset->update(bview, font);
224 return tmpinset->width(bview, font);
228 } else if (IsSeparatorChar(c))
230 else if (IsNewlineChar(c))
232 return lyxfont::width(c, font);
236 // Returns the paragraph position of the last character in the specified row
237 pos_type LyXText::rowLast(Row const * row) const
239 if (!row->next() || row->next()->par() != row->par())
240 return row->par()->size() - 1;
242 return row->next()->pos() - 1;
246 pos_type LyXText::rowLastPrintable(Row const * row) const
248 pos_type const last = rowLast(row);
249 if (last >= row->pos()
251 && row->next()->par() == row->par()
252 && row->par()->isSeparator(last))
259 void LyXText::computeBidiTables(Buffer const * buf, Row * row) const
261 bidi_same_direction = true;
262 if (!lyxrc.rtl_support) {
267 bidi_start = row->pos();
268 bidi_end = rowLastPrintable(row);
270 if (bidi_start > bidi_end) {
275 if (bidi_end + 2 - bidi_start >
276 static_cast<pos_type>(log2vis_list.size())) {
278 (bidi_end + 2 - bidi_start < 500) ?
279 500 : 2 * (bidi_end + 2 - bidi_start);
280 log2vis_list.resize(new_size);
281 vis2log_list.resize(new_size);
282 bidi_levels.resize(new_size);
285 vis2log_list[bidi_end + 1 - bidi_start] = -1;
286 log2vis_list[bidi_end + 1 - bidi_start] = -1;
290 row->par()->getParLanguage(buf->params)->RightToLeft();
294 pos_type const main_body = beginningOfMainBody(buf, row->par());
296 for (pos_type lpos = bidi_start;
297 lpos <= bidi_end; ++lpos) {
298 bool is_space = row->par()->isLineSeparator(lpos);
300 (is_space && lpos + 1 <= bidi_end &&
301 !row->par()->isLineSeparator(lpos + 1) &&
302 !row->par()->isNewline(lpos + 1))
304 LyXFont font = row->par()->getFontSettings(buf->params, pos);
305 if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() &&
306 font.number() == LyXFont::ON &&
307 row->par()->getFontSettings(buf->params, lpos - 1).number()
309 font = row->par()->getFontSettings(buf->params, lpos);
314 bool new_rtl = font.isVisibleRightToLeft();
315 bool new_rtl0 = font.isRightToLeft();
318 if (lpos == main_body - 1
319 && row->pos() < main_body - 1
321 new_level = (rtl_par) ? 1 : 0;
322 new_rtl = new_rtl0 = rtl_par;
324 new_level = (new_rtl) ? 1 : 2;
326 new_level = (rtl_par) ? 2 : 0;
328 if (is_space && new_level >= level) {
334 int new_level2 = new_level;
336 if (level == new_level && rtl0 != new_rtl0) {
338 log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1;
339 } else if (level < new_level) {
340 log2vis_list[lpos - bidi_start] = (rtl) ? -1 : 1;
341 if (new_level > rtl_par)
342 bidi_same_direction = false;
344 log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1;
347 bidi_levels[lpos - bidi_start] = new_level;
349 while (level > new_level2) {
350 pos_type old_lpos = stack[--level];
351 int delta = lpos - old_lpos - 1;
354 log2vis_list[lpos - bidi_start] += delta;
355 log2vis_list[old_lpos - bidi_start] += delta;
357 while (level < new_level)
358 stack[level++] = lpos;
362 pos_type const old_lpos = stack[--level];
363 int delta = bidi_end - old_lpos;
366 log2vis_list[old_lpos - bidi_start] += delta;
369 pos_type vpos = bidi_start - 1;
370 for (pos_type lpos = bidi_start;
371 lpos <= bidi_end; ++lpos) {
372 vpos += log2vis_list[lpos - bidi_start];
373 vis2log_list[vpos - bidi_start] = lpos;
374 log2vis_list[lpos - bidi_start] = vpos;
379 // This method requires a previous call to ComputeBidiTables()
380 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
383 if (!lyxrc.rtl_support || pos == 0)
386 if (!bidi_InRange(pos - 1)) {
387 /// This can happen if pos is the first char of a row.
388 /// Returning false in this case is incorrect!
392 bool const rtl = bidi_level(pos - 1) % 2;
393 bool const rtl2 = bidi_InRange(pos)
394 ? bidi_level(pos) % 2
395 : par->isRightToLeftPar(buf->params);
400 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
401 pos_type pos, LyXFont const & font) const
403 if (!lyxrc.rtl_support)
404 return false; // This is just for speedup
406 bool const rtl = font.isVisibleRightToLeft();
407 bool const rtl2 = bidi_InRange(pos)
408 ? bidi_level(pos) % 2
409 : par->isRightToLeftPar(buf->params);
413 void LyXText::drawNewline(DrawRowParams & p, pos_type const pos)
415 // Draw end-of-line marker
416 LyXFont const font = getFont(p.bv->buffer(), p.row->par(), pos);
417 int const wid = lyxfont::width('n', font);
418 int const asc = lyxfont::maxAscent(font);
419 int const y = p.yo + p.row->baseline();
423 yp[0] = int(y - 0.875 * asc * 0.75);
424 yp[1] = int(y - 0.500 * asc * 0.75);
425 yp[2] = int(y - 0.125 * asc * 0.75);
427 if (bidi_level(pos) % 2 == 0) {
428 xp[0] = int(p.x + wid * 0.375);
430 xp[2] = int(p.x + wid * 0.375);
432 xp[0] = int(p.x + wid * 0.625);
433 xp[1] = int(p.x + wid);
434 xp[2] = int(p.x + wid * 0.625);
437 p.pain->lines(xp, yp, 3, LColor::eolmarker);
439 yp[0] = int(y - 0.500 * asc * 0.75);
440 yp[1] = int(y - 0.500 * asc * 0.75);
441 yp[2] = int(y - asc * 0.75);
443 if (bidi_level(pos) % 2 == 0) {
445 xp[1] = int(p.x + wid);
446 xp[2] = int(p.x + wid);
448 xp[0] = int(p.x + wid);
453 p.pain->lines(xp, yp, 3, LColor::eolmarker);
459 void LyXText::drawInset(DrawRowParams & p, pos_type const pos)
461 Inset * inset = p.row->par()->getInset(pos);
463 // FIXME: shouldn't happen
468 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
470 inset->update(p.bv, font, false);
471 inset->draw(p.bv, font, p.yo + p.row->baseline(), p.x, p.cleared);
473 if (!need_break_row && !inset_owner
474 && p.bv->text->status() == CHANGED_IN_DRAW) {
475 Row * prev = p.row->previous();
476 if (prev && prev->par() == p.row->par()) {
477 breakAgainOneRow(p.bv, prev);
479 setCursor(p.bv, cursor.par(), cursor.pos());
480 need_break_row = p.row;
485 void LyXText::drawForeignMark(DrawRowParams & p, float const orig_x, LyXFont const & orig_font)
487 if (!lyxrc.mark_foreign_language)
489 if (orig_font.language() == latex_language)
491 if (orig_font.language() == p.bv->buffer()->params.language)
494 int const y = p.yo + p.row->height() - 1;
495 p.pain->line(int(orig_x), y, int(p.x), y, LColor::language);
499 void LyXText::drawHebrewComposeChar(DrawRowParams & p, pos_type & vpos)
501 pos_type pos = vis2log(vpos);
506 char c = p.row->par()->getChar(pos);
510 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
511 int const width = lyxfont::width(c, font);
514 for (pos_type i = pos-1; i >= 0; --i) {
515 c = p.row->par()->getChar(i);
516 if (!Encodings::IsComposeChar_hebrew(c)) {
517 if (IsPrintableNonspace(c)) {
519 singleWidth(p.bv, p.row->par(), i, c);
521 dx = (c == 'ø' || c == 'ã')
523 : (width2 - width) / 2;
530 p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font);
534 void LyXText::drawArabicComposeChar(DrawRowParams & p, pos_type & vpos)
536 pos_type pos = vis2log(vpos);
540 char c = p.row->par()->getChar(pos);
541 c = transformChar(c, p.row->par(), pos);
545 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
546 int const width = lyxfont::width(c, font);
549 for (pos_type i = pos-1; i >= 0; --i) {
550 c = p.row->par()->getChar(i);
551 if (!Encodings::IsComposeChar_arabic(c)) {
552 if (IsPrintableNonspace(c)) {
554 singleWidth(p.bv, p.row->par(), i, c);
555 dx = (width2 - width) / 2;
561 p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font);
565 void LyXText::drawChars(DrawRowParams & p, pos_type & vpos,
566 bool hebrew, bool arabic)
568 pos_type pos = vis2log(vpos);
569 pos_type const last = rowLastPrintable(p.row);
570 LyXFont const & orig_font = getFont(p.bv->buffer(), p.row->par(), pos);
574 str += p.row->par()->getChar(pos);
576 unsigned char c = str[0];
577 str[0] = transformChar(c, p.row->par(), pos);
581 // collect as much similar chars as we can
582 while (vpos <= last && (pos = vis2log(vpos)) >= 0) {
583 char c = p.row->par()->getChar(pos);
585 if (!IsPrintableNonspace(c))
588 if (arabic && Encodings::IsComposeChar_arabic(c))
590 if (hebrew && Encodings::IsComposeChar_hebrew(c))
593 if (orig_font != getFont(p.bv->buffer(), p.row->par(), pos))
600 // Draw text and set the new x position
601 p.pain->text(int(p.x), p.yo + p.row->baseline(), str, orig_font);
602 p.x += lyxfont::width(str, orig_font);
606 void LyXText::draw(DrawRowParams & p, pos_type & vpos)
608 pos_type const pos = vis2log(vpos);
609 Paragraph * par = p.row->par();
611 LyXFont const & orig_font = getFont(p.bv->buffer(), par, pos);
613 float const orig_x = p.x;
615 char const c = par->getChar(pos);
617 if (IsNewlineChar(c)) {
621 } else if (IsInsetChar(c)) {
624 drawForeignMark(p, orig_x, orig_font);
628 // usual characters, no insets
630 // special case languages
631 bool const hebrew = (orig_font.language()->lang() == "hebrew");
633 orig_font.language()->lang() == "arabic" &&
634 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
635 lyxrc.font_norm_type == LyXRC::ISO_10646_1);
637 // draw as many chars as we can
638 if ((!hebrew && !arabic)
639 || (hebrew && !Encodings::IsComposeChar_hebrew(c))
640 || (arabic && !Encodings::IsComposeChar_arabic(c))) {
641 drawChars(p, vpos, true, false);
643 drawHebrewComposeChar(p, vpos);
645 drawArabicComposeChar(p, vpos);
648 drawForeignMark(p, orig_x, orig_font);
650 #ifdef INHERIT_LANGUAGE
652 if ((font.language() == inherit_language) ||
653 (font.language() == ignore_language))
654 lyxerr << "No this shouldn't happen!\n";
660 // Returns the left beginning of the text.
661 // This information cannot be taken from the layouts-objekt, because in
662 // LaTeX the beginning of the text fits in some cases (for example sections)
663 // exactly the label-width.
664 int LyXText::leftMargin(BufferView * bview, Row const * row) const
666 LyXTextClass const & tclass =
667 textclasslist.TextClass(bview->buffer()->params.textclass);
668 LyXLayout const & layout = tclass[row->par()->getLayout()];
670 string parindent = layout.parindent;
672 int x = LYX_PAPER_MARGIN;
674 x += lyxfont::signedWidth(tclass.leftmargin(), tclass.defaultfont());
676 // this is the way, LyX handles the LaTeX-Environments.
677 // I have had this idea very late, so it seems to be a
678 // later added hack and this is true
679 if (!row->par()->getDepth()) {
680 if (!row->par()->getLayout()) {
681 // find the previous same level paragraph
682 if (row->par()->previous()) {
683 Paragraph * newpar = row->par()
684 ->depthHook(row->par()->getDepth());
686 tclass[newpar->getLayout()].nextnoindent)
691 // find the next level paragraph
694 row->par()->outerHook();
696 // make a corresponding row. Needed to call LeftMargin()
698 // check wether it is a sufficent paragraph
699 if (newpar && tclass[newpar->getLayout()].isEnvironment())
702 dummyrow.par(newpar);
703 dummyrow.pos(newpar->size());
704 x = leftMargin(bview, &dummyrow);
706 // this is no longer an error, because this function
707 // is used to clear impossible depths after changing
708 // a layout. Since there is always a redo,
709 // LeftMargin() is always called
710 row->par()->params().depth(0);
713 if (newpar && !row->par()->getLayout()) {
714 if (newpar->params().noindent())
717 parindent = tclass[newpar->getLayout()].parindent;
722 LyXFont const labelfont = getLabelFont(bview->buffer(), row->par());
723 switch (layout.margintype) {
725 if (!layout.leftmargin.empty()) {
726 x += lyxfont::signedWidth(layout.leftmargin,
727 tclass.defaultfont());
729 if (!row->par()->getLabelstring().empty()) {
730 x += lyxfont::signedWidth(layout.labelindent,
732 x += lyxfont::width(row->par()->getLabelstring(),
734 x += lyxfont::width(layout.labelsep, labelfont);
738 x += lyxfont::signedWidth(layout.labelindent, labelfont);
739 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
740 if (!row->par()->getLabelWidthString().empty()) {
741 x += lyxfont::width(row->par()->getLabelWidthString(),
743 x += lyxfont::width(layout.labelsep, labelfont);
748 x += lyxfont::signedWidth(layout.leftmargin, tclass.defaultfont()) * 4
749 / (row->par()->getDepth() + 4);
751 case MARGIN_FIRST_DYNAMIC:
752 if (layout.labeltype == LABEL_MANUAL) {
753 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
754 x += lyxfont::signedWidth(layout.leftmargin,
757 x += lyxfont::signedWidth(layout.labelindent,
760 } else if (row->pos()
761 // Special case to fix problems with
763 || (layout.labeltype == LABEL_STATIC
764 && layout.latextype == LATEX_ENVIRONMENT
765 && ! row->par()->isFirstInSequence())) {
766 x += lyxfont::signedWidth(layout.leftmargin,
768 } else if (layout.labeltype != LABEL_TOP_ENVIRONMENT
769 && layout.labeltype != LABEL_BIBLIO
770 && layout.labeltype !=
771 LABEL_CENTERED_TOP_ENVIRONMENT) {
772 x += lyxfont::signedWidth(layout.labelindent,
774 x += lyxfont::width(layout.labelsep, labelfont);
775 x += lyxfont::width(row->par()->getLabelstring(),
780 case MARGIN_RIGHT_ADDRESS_BOX:
782 // ok, a terrible hack. The left margin depends on the widest
783 // row in this paragraph. Do not care about footnotes, they
784 // are *NOT* allowed in the LaTeX realisation of this layout.
786 // find the first row of this paragraph
787 Row const * tmprow = row;
788 while (tmprow->previous()
789 && tmprow->previous()->par() == row->par())
790 tmprow = tmprow->previous();
792 int minfill = tmprow->fill();
793 while (tmprow->next() && tmprow->next()->par() == row->par()) {
794 tmprow = tmprow->next();
795 if (tmprow->fill() < minfill)
796 minfill = tmprow->fill();
799 x += lyxfont::signedWidth(layout.leftmargin,
800 tclass.defaultfont());
806 LyXAlignment align; // wrong type
808 if (row->par()->params().align() == LYX_ALIGN_LAYOUT)
809 align = layout.align;
811 align = row->par()->params().align();
813 // set the correct parindent
814 if (row->pos() == 0) {
815 if ((layout.labeltype == LABEL_NO_LABEL
816 || layout.labeltype == LABEL_TOP_ENVIRONMENT
817 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
818 || (layout.labeltype == LABEL_STATIC
819 && layout.latextype == LATEX_ENVIRONMENT
820 && ! row->par()->isFirstInSequence()))
821 && align == LYX_ALIGN_BLOCK
822 && !row->par()->params().noindent()
823 && (row->par()->layout ||
824 bview->buffer()->params.paragraph_separation ==
825 BufferParams::PARSEP_INDENT))
826 x += lyxfont::signedWidth(parindent,
827 tclass.defaultfont());
828 else if (layout.labeltype == LABEL_BIBLIO) {
829 // ale970405 Right width for bibitems
830 x += bibitemMaxWidth(bview, tclass.defaultfont());
837 int LyXText::rightMargin(Buffer const * buf, Row const * row) const
839 LyXTextClass const & tclass =
840 textclasslist.TextClass(buf->params.textclass);
841 LyXLayout const & layout = tclass[row->par()->getLayout()];
843 int x = LYX_PAPER_MARGIN
844 + lyxfont::signedWidth(tclass.rightmargin(),
845 tclass.defaultfont());
847 // this is the way, LyX handles the LaTeX-Environments.
848 // I have had this idea very late, so it seems to be a
849 // later added hack and this is true
850 if (row->par()->getDepth()) {
851 // find the next level paragraph
853 Paragraph * newpar = row->par();
856 newpar = newpar->previous();
858 && newpar->getDepth() >= row->par()->getDepth());
860 // make a corresponding row. Needed to call LeftMargin()
862 // check wether it is a sufficent paragraph
864 && tclass[newpar->getLayout()].isEnvironment()) {
866 dummyrow.par(newpar);
868 x = rightMargin(buf, &dummyrow);
870 // this is no longer an error, because this function
871 // is used to clear impossible depths after changing
872 // a layout. Since there is always a redo,
873 // LeftMargin() is always called
874 row->par()->params().depth(0);
878 //lyxerr << "rightmargin: " << layout->rightmargin << endl;
879 x += lyxfont::signedWidth(layout.rightmargin, tclass.defaultfont())
880 * 4 / (row->par()->getDepth() + 4);
885 int LyXText::labelEnd(BufferView * bview, Row const * row) const
887 if (textclasslist.Style(bview->buffer()->params.textclass,
888 row->par()->getLayout()).margintype
892 tmprow.pos(row->par()->size());
893 return leftMargin(bview, &tmprow); /* just the beginning
896 return 0; /* LabelEnd is only needed, if the
897 layout fills a flushleft
902 // get the next breakpoint in a given paragraph
904 LyXText::nextBreakPoint(BufferView * bview, Row const * row, int width) const
906 Paragraph * par = row->par();
911 pos_type const pos = row->pos();
913 // position of the last possible breakpoint
914 // -1 isn't a suitable value, but a flag
915 pos_type last_separator = -1;
916 width -= rightMargin(bview->buffer(), row);
918 pos_type const main_body =
919 beginningOfMainBody(bview->buffer(), par);
920 LyXLayout const & layout =
921 textclasslist.Style(bview->buffer()->params.textclass,
925 if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
926 /* special code for right address boxes, only newlines count */
927 while (i < par->size()) {
928 if (par->isNewline(i)) {
930 i = par->size() - 1; // this means break
932 } else if (par->isInset(i) && par->getInset(i)
933 && par->getInset(i)->display()) {
934 par->getInset(i)->display(false);
939 // Last position is an invariant
940 pos_type const last =
942 // this is the usual handling
943 int x = leftMargin(bview, row);
944 bool doitonetime = true;
945 while (doitonetime || ((x < width) && (i < last))) {
947 char const c = par->getChar(i);
948 if (IsNewlineChar(c)) {
950 x = width; // this means break
951 } else if (c == Paragraph::META_INSET &&
954 // check wether a Display() inset is
955 // valid here. if not, change it to
957 if (par->getInset(i)->display() &&
958 (layout.isCommand() ||
959 (layout.labeltype == LABEL_MANUAL
960 && i < beginningOfMainBody(bview->buffer(), par)))) {
961 // display istn't allowd
962 par->getInset(i)->display(false);
963 x += singleWidth(bview, par, i, c);
964 } else if (par->getInset(i)->display() ||
965 par->getInset(i)->needFullRow()) {
966 // So break the line here
970 if (IsLineSeparatorChar(par->getChar(i+1)))
973 last_separator = last; // to avoid extra rows
975 last_separator = i - 1;
976 x = width; // this means break
978 x += singleWidth(bview, par, i, c);
981 if (IsLineSeparatorChar(c))
983 x += singleWidth(bview, par, i, c);
986 if (i == main_body) {
987 x += lyxfont::width(layout.labelsep,
988 getLabelFont(bview->buffer(), par));
989 if (par->isLineSeparator(i - 1))
990 x-= singleWidth(bview, par, i - 1);
991 int left_margin = labelEnd(bview, row);
996 // end of paragraph is always a suitable separator
997 if (i == last && x < width)
1001 // well, if last_separator is still 0, the line isn't breakable.
1002 // don't care and cut simply at the end
1003 if (last_separator < 0) {
1007 // manual labels cannot be broken in LaTeX, do not care
1008 if (main_body && last_separator < main_body)
1009 last_separator = main_body - 1;
1011 return last_separator;
1015 // returns the minimum space a row needs on the screen in pixel
1016 int LyXText::fill(BufferView * bview, Row * row, int paper_width) const
1018 if (paper_width < 0)
1022 // get the pure distance
1023 pos_type const last = rowLastPrintable(row);
1025 // special handling of the right address boxes
1026 if (textclasslist.Style(bview->buffer()->params.textclass,
1027 row->par()->getLayout()).margintype
1028 == MARGIN_RIGHT_ADDRESS_BOX)
1030 int const tmpfill = row->fill();
1031 row->fill(0); // the minfill in MarginLeft()
1032 w = leftMargin(bview, row);
1035 w = leftMargin(bview, row);
1037 LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
1038 row->par()->getLayout());
1039 pos_type const main_body =
1040 beginningOfMainBody(bview->buffer(), row->par());
1041 pos_type i = row->pos();
1044 if (main_body > 0 && i == main_body) {
1045 w += lyxfont::width(layout.labelsep, getLabelFont(bview->buffer(), row->par()));
1046 if (row->par()->isLineSeparator(i - 1))
1047 w -= singleWidth(bview, row->par(), i - 1);
1048 int left_margin = labelEnd(bview, row);
1049 if (w < left_margin)
1052 w += singleWidth(bview, row->par(), i);
1055 if (main_body > 0 && main_body > last) {
1056 w += lyxfont::width(layout.labelsep, getLabelFont(bview->buffer(), row->par()));
1057 if (last >= 0 && row->par()->isLineSeparator(last))
1058 w -= singleWidth(bview, row->par(), last);
1059 int const left_margin = labelEnd(bview, row);
1060 if (w < left_margin)
1064 int const fill = paper_width - w - rightMargin(bview->buffer(), row);
1069 // returns the minimum space a manual label needs on the screen in pixel
1070 int LyXText::labelFill(BufferView * bview, Row const * row) const
1072 pos_type last = beginningOfMainBody(bview->buffer(), row->par()) - 1;
1073 // -1 because a label ends either with a space that is in the label,
1074 // or with the beginning of a footnote that is outside the label.
1076 // I don't understand this code in depth, but sometimes "last" is
1077 // less than 0 and this causes a crash. This fix seems to work
1078 // correctly, but I bet the real error is elsewhere. The bug is
1079 // triggered when you have an open footnote in a paragraph
1080 // environment with a manual label. (Asger)
1081 if (last < 0) last = 0;
1083 if (row->par()->isLineSeparator(last)) /* a sepearator at this end
1088 pos_type i = row->pos();
1090 w += singleWidth(bview, row->par(), i);
1095 if (!row->par()->params().labelWidthString().empty()) {
1096 fill = max(lyxfont::width(row->par()->params().labelWidthString(),
1097 getLabelFont(bview->buffer(), row->par())) - w,
1105 // returns the number of separators in the specified row. The separator
1106 // on the very last column doesnt count
1107 int LyXText::numberOfSeparators(Buffer const * buf, Row const * row) const
1109 pos_type const last = rowLast(row);
1110 pos_type p = max(row->pos(), beginningOfMainBody(buf, row->par()));
1112 for (; p < last; ++p) {
1113 if (row->par()->isSeparator(p)) {
1121 // returns the number of hfills in the specified row. The LyX-Hfill is
1122 // a LaTeX \hfill so that the hfills at the beginning and at the end were
1123 // ignored. This is *MUCH* more usefull than not to ignore!
1124 int LyXText::numberOfHfills(Buffer const * buf, Row const * row) const
1126 pos_type const last = rowLast(row);
1127 pos_type first = row->pos();
1128 if (first) { /* hfill *DO* count at the beginning
1130 while (first <= last && row->par()->isHfill(first))
1134 first = max(first, beginningOfMainBody(buf, row->par()));
1136 for (pos_type p = first; p <= last; ++p) {
1137 // last, because the end is ignored!
1138 if (row->par()->isHfill(p)) {
1146 // like NumberOfHfills, but only those in the manual label!
1147 int LyXText::numberOfLabelHfills(Buffer const * buf, Row const * row) const
1149 pos_type last = rowLast(row);
1150 pos_type first = row->pos();
1151 if (first) { /* hfill *DO* count at the beginning
1153 while (first < last && row->par()->isHfill(first))
1157 last = min(last, beginningOfMainBody(buf, row->par()));
1159 for (pos_type p = first; p < last; ++p) {
1160 // last, because the end is ignored!
1161 if (row->par()->isHfill(p)) {
1169 // returns true, if a expansion is needed.
1170 // Rules are given by LaTeX
1171 bool LyXText::hfillExpansion(Buffer const * buf, Row const * row_ptr,
1174 // by the way, is it a hfill?
1175 if (!row_ptr->par()->isHfill(pos))
1178 // at the end of a row it does not count
1179 // unless another hfill exists on the line
1180 if (pos >= rowLast(row_ptr)) {
1181 pos_type i = row_ptr->pos();
1182 while (i < pos && !row_ptr->par()->isHfill(i)) {
1190 // at the beginning of a row it does not count, if it is not
1191 // the first row of a paragaph
1192 if (!row_ptr->pos())
1195 // in some labels it does not count
1196 if (textclasslist.Style(buf->params.textclass,
1197 row_ptr->par()->getLayout()).margintype
1199 && pos < beginningOfMainBody(buf, row_ptr->par()))
1202 // if there is anything between the first char of the row and
1203 // the sepcified position that is not a newline and not a hfill,
1204 // the hfill will count, otherwise not
1205 pos_type i = row_ptr->pos();
1206 while (i < pos && (row_ptr->par()->isNewline(i)
1207 || row_ptr->par()->isHfill(i)))
1214 LColor::color LyXText::backgroundColor()
1217 return inset_owner->backgroundColor();
1219 return LColor::background;
1222 void LyXText::setHeightOfRow(BufferView * bview, Row * row_ptr) const
1224 /* get the maximum ascent and the maximum descent */
1227 float layoutasc = 0;
1228 float layoutdesc = 0;
1231 Inset * tmpinset = 0;
1233 /* ok , let us initialize the maxasc and maxdesc value.
1234 * This depends in LaTeX of the font of the last character
1235 * in the paragraph. The hack below is necessary because
1236 * of the possibility of open footnotes */
1238 /* Correction: only the fontsize count. The other properties
1239 are taken from the layoutfont. Nicer on the screen :) */
1240 Paragraph * par = row_ptr->par();
1241 Paragraph * firstpar = row_ptr->par();
1243 LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
1244 firstpar->getLayout());
1246 // as max get the first character of this row then it can increes but not
1247 // decrees the height. Just some point to start with so we don't have to
1248 // do the assignment below too often.
1249 LyXFont font = getFont(bview->buffer(), par, row_ptr->pos());
1250 LyXFont::FONT_SIZE const tmpsize = font.size();
1251 font = getLayoutFont(bview->buffer(), par);
1252 LyXFont::FONT_SIZE const size = font.size();
1253 font.setSize(tmpsize);
1255 LyXFont labelfont = getLabelFont(bview->buffer(), par);
1257 float spacing_val = 1.0;
1258 if (!row_ptr->par()->params().spacing().isDefault()) {
1259 spacing_val = row_ptr->par()->params().spacing().getValue();
1261 spacing_val = bview->buffer()->params.spacing.getValue();
1263 //lyxerr << "spacing_val = " << spacing_val << endl;
1265 int maxasc = int(lyxfont::maxAscent(font) *
1266 layout.spacing.getValue() *
1268 int maxdesc = int(lyxfont::maxDescent(font) *
1269 layout.spacing.getValue() *
1271 pos_type const pos_end = rowLast(row_ptr);
1275 // Check if any insets are larger
1276 for (pos_type pos = row_ptr->pos(); pos <= pos_end; ++pos) {
1277 if (row_ptr->par()->isInset(pos)) {
1278 tmpfont = getFont(bview->buffer(), row_ptr->par(), pos);
1279 tmpinset = row_ptr->par()->getInset(pos);
1281 #if 1 // this is needed for deep update on initialitation
1282 tmpinset->update(bview, tmpfont);
1284 asc = tmpinset->ascent(bview, tmpfont);
1285 desc = tmpinset->descent(bview, tmpfont);
1286 maxwidth += tmpinset->width(bview, tmpfont);
1287 maxasc = max(maxasc, asc);
1288 maxdesc = max(maxdesc, desc);
1291 maxwidth += singleWidth(bview, row_ptr->par(), pos);
1295 // Check if any custom fonts are larger (Asger)
1296 // This is not completely correct, but we can live with the small,
1297 // cosmetic error for now.
1298 LyXFont::FONT_SIZE maxsize =
1299 row_ptr->par()->highestFontInRange(row_ptr->pos(), pos_end, size);
1300 if (maxsize > font.size()) {
1301 font.setSize(maxsize);
1303 asc = lyxfont::maxAscent(font);
1304 desc = lyxfont::maxDescent(font);
1311 // This is nicer with box insets:
1315 row_ptr->ascent_of_text(maxasc);
1317 // is it a top line?
1318 if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
1320 // some parksips VERY EASY IMPLEMENTATION
1321 if (bview->buffer()->params.paragraph_separation ==
1322 BufferParams::PARSEP_SKIP)
1324 if (layout.isParagraph()
1325 && firstpar->getDepth() == 0
1326 && firstpar->previous())
1328 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1329 } else if (firstpar->previous() &&
1330 textclasslist.Style(bview->buffer()->params.textclass,
1331 firstpar->previous()->
1332 getLayout()).isParagraph() &&
1333 firstpar->previous()->getDepth() == 0)
1335 // is it right to use defskip here too? (AS)
1336 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1340 // the paper margins
1341 if (!row_ptr->par()->previous() && bv_owner)
1342 maxasc += LYX_PAPER_MARGIN;
1344 // add the vertical spaces, that the user added
1345 maxasc += getLengthMarkerHeight(bview, firstpar->params().spaceTop());
1347 // do not forget the DTP-lines!
1348 // there height depends on the font of the nearest character
1349 if (firstpar->params().lineTop())
1350 maxasc += 2 * lyxfont::ascent('x', getFont(bview->buffer(),
1353 // and now the pagebreaks
1354 if (firstpar->params().pagebreakTop())
1355 maxasc += 3 * defaultHeight();
1357 // This is special code for the chapter, since the label of this
1358 // layout is printed in an extra row
1359 if (layout.labeltype == LABEL_COUNTER_CHAPTER
1360 && bview->buffer()->params.secnumdepth >= 0)
1362 float spacing_val = 1.0;
1363 if (!row_ptr->par()->params().spacing().isDefault()) {
1364 spacing_val = row_ptr->par()->params().spacing().getValue();
1366 spacing_val = bview->buffer()->params.spacing.getValue();
1369 labeladdon = int(lyxfont::maxDescent(labelfont) *
1370 layout.spacing.getValue() *
1372 + int(lyxfont::maxAscent(labelfont) *
1373 layout.spacing.getValue() *
1377 // special code for the top label
1378 if ((layout.labeltype == LABEL_TOP_ENVIRONMENT
1379 || layout.labeltype == LABEL_BIBLIO
1380 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1381 && row_ptr->par()->isFirstInSequence()
1382 && !row_ptr->par()->getLabelstring().empty())
1384 float spacing_val = 1.0;
1385 if (!row_ptr->par()->params().spacing().isDefault()) {
1386 spacing_val = row_ptr->par()->params().spacing().getValue();
1388 spacing_val = bview->buffer()->params.spacing.getValue();
1392 (lyxfont::maxAscent(labelfont) *
1393 layout.spacing.getValue() *
1395 +(lyxfont::maxDescent(labelfont) *
1396 layout.spacing.getValue() *
1398 + layout.topsep * defaultHeight()
1399 + layout.labelbottomsep * defaultHeight());
1402 // and now the layout spaces, for example before and after a section,
1403 // or between the items of a itemize or enumerate environment
1405 if (!firstpar->params().pagebreakTop()) {
1406 Paragraph * prev = row_ptr->par()->previous();
1408 prev = row_ptr->par()->depthHook(row_ptr->par()->getDepth());
1409 if (prev && prev->getLayout() == firstpar->getLayout() &&
1410 prev->getDepth() == firstpar->getDepth() &&
1411 prev->getLabelWidthString() == firstpar->getLabelWidthString())
1413 layoutasc = (layout.itemsep * defaultHeight());
1414 } else if (row_ptr->previous()) {
1415 tmptop = layout.topsep;
1417 if (row_ptr->previous()->par()->getDepth() >= row_ptr->par()->getDepth())
1418 tmptop -= textclasslist.Style(bview->buffer()->params.textclass,
1419 row_ptr->previous()->par()->
1420 getLayout()).bottomsep;
1423 layoutasc = (tmptop * defaultHeight());
1424 } else if (row_ptr->par()->params().lineTop()) {
1425 tmptop = layout.topsep;
1428 layoutasc = (tmptop * defaultHeight());
1431 prev = row_ptr->par()->outerHook();
1433 maxasc += int(textclasslist.Style(bview->buffer()->params.textclass,
1434 prev->getLayout()).parsep * defaultHeight());
1436 if (firstpar->previous() &&
1437 firstpar->previous()->getDepth() == 0 &&
1438 firstpar->previous()->getLayout() !=
1439 firstpar->getLayout())
1442 } else if (firstpar->previous()) {
1443 maxasc += int(layout.parsep * defaultHeight());
1449 // is it a bottom line?
1450 if (row_ptr->par() == par
1451 && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par()))
1453 // the paper margins
1454 if (!par->next() && bv_owner)
1455 maxdesc += LYX_PAPER_MARGIN;
1457 // add the vertical spaces, that the user added
1458 maxdesc += getLengthMarkerHeight(bview, firstpar->params().spaceBottom());
1460 // do not forget the DTP-lines!
1461 // there height depends on the font of the nearest character
1462 if (firstpar->params().lineBottom())
1463 maxdesc += 2 * lyxfont::ascent('x',
1464 getFont(bview->buffer(),
1466 max(pos_type(0), par->size() - 1)));
1468 // and now the pagebreaks
1469 if (firstpar->params().pagebreakBottom())
1470 maxdesc += 3 * defaultHeight();
1472 // and now the layout spaces, for example before and after
1473 // a section, or between the items of a itemize or enumerate
1475 if (!firstpar->params().pagebreakBottom()
1476 && row_ptr->par()->next()) {
1477 Paragraph * nextpar = row_ptr->par()->next();
1478 Paragraph * comparepar = row_ptr->par();
1482 if (comparepar->getDepth() > nextpar->getDepth()) {
1483 usual = (textclasslist.Style(bview->buffer()->params.textclass,
1484 comparepar->getLayout()).bottomsep * defaultHeight());
1485 comparepar = comparepar->depthHook(nextpar->getDepth());
1486 if (comparepar->getLayout()!= nextpar->getLayout()
1487 || nextpar->getLabelWidthString() !=
1488 comparepar->getLabelWidthString())
1490 unusual = (textclasslist.Style(bview->buffer()->params.textclass,
1491 comparepar->getLayout()).bottomsep * defaultHeight());
1493 if (unusual > usual)
1494 layoutdesc = unusual;
1497 } else if (comparepar->getDepth() == nextpar->getDepth()) {
1499 if (comparepar->getLayout()!= nextpar->getLayout()
1500 || nextpar->getLabelWidthString() !=
1501 comparepar->getLabelWidthString())
1502 layoutdesc = int(textclasslist.Style(bview->buffer()->params.textclass,
1503 comparepar->getLayout()).bottomsep * defaultHeight());
1508 // incalculate the layout spaces
1509 maxasc += int(layoutasc * 2 / (2 + firstpar->getDepth()));
1510 maxdesc += int(layoutdesc * 2 / (2 + firstpar->getDepth()));
1512 // calculate the new height of the text
1513 height -= row_ptr->height();
1515 row_ptr->height(maxasc + maxdesc + labeladdon);
1516 row_ptr->baseline(maxasc + labeladdon);
1518 height += row_ptr->height();
1520 if (layout.margintype != MARGIN_RIGHT_ADDRESS_BOX) {
1522 prepareToPrint(bview, row_ptr, x, dummy, dummy, dummy, false);
1524 row_ptr->width(int(maxwidth + x));
1527 width = max(0,workWidth(bview));
1529 if (r->width() > width)
1537 /* Appends the implicit specified paragraph behind the specified row,
1538 * start at the implicit given position */
1539 void LyXText::appendParagraph(BufferView * bview, Row * row) const
1541 bool not_ready = true;
1543 // The last character position of a paragraph is an invariant so we can
1544 // safely get it here. (Asger)
1545 pos_type const lastposition = row->par()->size();
1547 // Get the next breakpoint
1548 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1552 // Insert the new row
1553 if (z < lastposition) {
1555 insertRow(row, row->par(), z);
1562 // Set the dimensions of the row
1563 // fixed fill setting now by calling inset->update() in
1564 // SingleWidth when needed!
1565 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1566 setHeightOfRow(bview, tmprow);
1568 } while (not_ready);
1572 void LyXText::breakAgain(BufferView * bview, Row * row) const
1574 bool not_ready = true;
1577 // get the next breakpoint
1578 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1581 if (z < row->par()->size()) {
1582 if (!row->next() || (row->next() && row->next()->par() != row->par())) {
1585 insertRow(row, row->par(), z);
1591 if (row->pos() == z)
1592 not_ready = false; // the rest will not change
1598 /* if there are some rows too much, delete them */
1599 /* only if you broke the whole paragraph! */
1600 Row * tmprow2 = row;
1601 while (tmprow2->next() && tmprow2->next()->par() == row->par()) {
1602 tmprow2 = tmprow2->next();
1604 while (tmprow2 != row) {
1605 tmprow2 = tmprow2->previous();
1606 removeRow(tmprow2->next());
1611 /* set the dimensions of the row */
1612 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1613 setHeightOfRow(bview, tmprow);
1614 } while (not_ready);
1618 // this is just a little changed version of break again
1619 void LyXText::breakAgainOneRow(BufferView * bview, Row * row)
1621 // get the next breakpoint
1622 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1625 if (z < row->par()->size()) {
1627 || (row->next() && row->next()->par() != row->par())) {
1628 /* insert a new row */
1630 insertRow(row, row->par(), z);
1636 if (row->pos() != z)
1640 // if there are some rows too much, delete them
1641 // only if you broke the whole paragraph!
1642 Row * tmprow2 = row;
1643 while (tmprow2->next()
1644 && tmprow2->next()->par() == row->par()) {
1645 tmprow2 = tmprow2->next();
1647 while (tmprow2 != row) {
1648 tmprow2 = tmprow2->previous();
1649 removeRow(tmprow2->next());
1653 // set the dimensions of the row
1654 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1655 setHeightOfRow(bview, tmprow);
1659 void LyXText::breakParagraph(BufferView * bview, char keep_layout)
1661 LyXLayout const & layout =
1662 textclasslist.Style(bview->buffer()->params.textclass,
1663 cursor.par()->getLayout());
1665 // this is only allowed, if the current paragraph is not empty or caption
1666 if ((cursor.par()->size() <= 0)
1667 && layout.labeltype!= LABEL_SENSITIVE)
1670 setUndo(bview, Undo::INSERT,cursor.par(),cursor.par()->next());
1672 // Always break behind a space
1674 // It is better to erase the space (Dekel)
1675 if (cursor.pos() < cursor.par()->size()
1676 && cursor.par()->isLineSeparator(cursor.pos()))
1677 cursor.par()->erase(cursor.pos());
1678 // cursor.pos(cursor.pos() + 1);
1680 // break the paragraph
1684 keep_layout = layout.isEnvironment();
1685 cursor.par()->breakParagraph(bview->buffer()->params, cursor.pos(),
1688 // well this is the caption hack since one caption is really enough
1689 if (layout.labeltype == LABEL_SENSITIVE) {
1691 // set to standard-layout
1692 cursor.par()->setLayout(0);
1694 // set to standard-layout
1695 cursor.par()->next()->setLayout(0);
1698 /* if the cursor is at the beginning of a row without prior newline,
1700 * This touches only the screen-update. Otherwise we would may have
1701 * an empty row on the screen */
1702 if (cursor.pos() && !cursor.row()->par()->isNewline(cursor.row()->pos() - 1)
1703 && cursor.row()->pos() == cursor.pos()) {
1707 status(bview, LyXText::NEED_MORE_REFRESH);
1708 refresh_row = cursor.row();
1709 refresh_y = cursor.y() - cursor.row()->baseline();
1711 // Do not forget the special right address boxes
1712 if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1713 while (refresh_row->previous() &&
1714 refresh_row->previous()->par() == refresh_row->par()) {
1715 refresh_row = refresh_row->previous();
1716 refresh_y -= refresh_row->height();
1719 removeParagraph(cursor.row());
1721 // set the dimensions of the cursor row
1722 cursor.row()->fill(fill(bview, cursor.row(), workWidth(bview)));
1724 setHeightOfRow(bview, cursor.row());
1726 while (cursor.par()->next()->size()
1727 && cursor.par()->next()->isNewline(0))
1728 cursor.par()->next()->erase(0);
1730 insertParagraph(bview, cursor.par()->next(), cursor.row());
1732 updateCounters(bview, cursor.row()->previous());
1734 /* This check is necessary. Otherwise the new empty paragraph will
1735 * be deleted automatically. And it is more friendly for the user! */
1737 setCursor(bview, cursor.par()->next(), 0);
1739 setCursor(bview, cursor.par(), 0);
1741 if (cursor.row()->next())
1742 breakAgain(bview, cursor.row()->next());
1748 // Just a macro to make some thing easier.
1749 void LyXText::redoParagraph(BufferView * bview) const
1752 redoParagraphs(bview, cursor, cursor.par()->next());
1753 setCursorIntern(bview, cursor.par(), cursor.pos());
1757 /* insert a character, moves all the following breaks in the
1758 * same Paragraph one to the right and make a rebreak */
1759 void LyXText::insertChar(BufferView * bview, char c)
1761 setUndo(bview, Undo::INSERT,
1762 cursor.par(), cursor.par()->next());
1764 // When the free-spacing option is set for the current layout,
1765 // disable the double-space checking
1767 bool const freeSpacing =
1768 textclasslist.Style(bview->buffer()->params.textclass,
1769 cursor.row()->par()->getLayout()).free_spacing ||
1770 cursor.row()->par()->isFreeSpacing();
1773 if (lyxrc.auto_number) {
1774 static string const number_operators = "+-/*";
1775 static string const number_unary_operators = "+-";
1776 static string const number_seperators = ".,:";
1778 if (current_font.number() == LyXFont::ON) {
1779 if (!isdigit(c) && !contains(number_operators, c) &&
1780 !(contains(number_seperators, c) &&
1781 cursor.pos() >= 1 &&
1782 cursor.pos() < cursor.par()->size() &&
1783 getFont(bview->buffer(),
1785 cursor.pos()).number() == LyXFont::ON &&
1786 getFont(bview->buffer(),
1788 cursor.pos() - 1).number() == LyXFont::ON)
1790 number(bview); // Set current_font.number to OFF
1791 } else if (isdigit(c) &&
1792 real_current_font.isVisibleRightToLeft()) {
1793 number(bview); // Set current_font.number to ON
1795 if (cursor.pos() > 0) {
1796 char const c = cursor.par()->getChar(cursor.pos() - 1);
1797 if (contains(number_unary_operators, c) &&
1798 (cursor.pos() == 1 ||
1799 cursor.par()->isSeparator(cursor.pos() - 2) ||
1800 cursor.par()->isNewline(cursor.pos() - 2) )
1802 setCharFont(bview->buffer(),
1806 } else if (contains(number_seperators, c) &&
1807 cursor.pos() >= 2 &&
1808 getFont(bview->buffer(),
1810 cursor.pos() - 2).number() == LyXFont::ON) {
1811 setCharFont(bview->buffer(),
1821 /* First check, if there will be two blanks together or a blank at
1822 the beginning of a paragraph.
1823 I decided to handle blanks like normal characters, the main
1824 difference are the special checks when calculating the row.fill
1825 (blank does not count at the end of a row) and the check here */
1827 // The bug is triggered when we type in a description environment:
1828 // The current_font is not changed when we go from label to main text
1829 // and it should (along with realtmpfont) when we type the space.
1830 // CHECK There is a bug here! (Asger)
1832 LyXFont realtmpfont = real_current_font;
1833 LyXFont rawtmpfont = current_font; /* store the current font.
1834 * This is because of the use
1835 * of cursor movements. The moving
1836 * cursor would refresh the
1839 // Get the font that is used to calculate the baselineskip
1840 pos_type const lastpos = cursor.par()->size();
1841 LyXFont rawparfont =
1842 cursor.par()->getFontSettings(bview->buffer()->params,
1845 bool jumped_over_space = false;
1847 if (!freeSpacing && IsLineSeparatorChar(c)) {
1848 if ((cursor.pos() > 0
1849 && cursor.par()->isLineSeparator(cursor.pos() - 1))
1850 || (cursor.pos() > 0
1851 && cursor.par()->isNewline(cursor.pos() - 1))
1852 || (cursor.pos() == 0)) {
1853 static bool sent_space_message = false;
1854 if (!sent_space_message) {
1855 if (cursor.pos() == 0)
1856 bview->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1858 bview->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1859 sent_space_message = true;
1864 } else if (IsNewlineChar(c)) {
1865 if (cursor.par() == cursor.par()
1866 && cursor.pos() <= beginningOfMainBody(bview->buffer(), cursor.par())) {
1870 /* No newline at first position
1871 * of a paragraph or behind labels.
1872 * TeX does not allow that. */
1874 if (cursor.pos() < cursor.par()->size() &&
1875 cursor.par()->isLineSeparator(cursor.pos()))
1876 // newline always after a blank!
1878 cursor.row()->fill(-1); // to force a new break
1881 // the display inset stuff
1882 if (cursor.row()->par()->isInset(cursor.row()->pos())) {
1883 Inset * inset = cursor.row()->par()->getInset(cursor.row()->pos());
1884 if (inset && (inset->display() || inset->needFullRow())) {
1885 // force a new break
1886 cursor.row()->fill(-1); // to force a new break
1890 // get the cursor row fist
1891 Row * row = cursor.row();
1892 int y = cursor.y() - row->baseline();
1893 if (c != Paragraph::META_INSET) /* Here case LyXText::InsertInset
1894 * already insertet the character */
1895 cursor.par()->insertChar(cursor.pos(), c);
1896 setCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont);
1898 if (!jumped_over_space) {
1899 // refresh the positions
1901 while (tmprow->next() && tmprow->next()->par() == row->par()) {
1902 tmprow = tmprow->next();
1903 tmprow->pos(tmprow->pos() + 1);
1907 // Is there a break one row above
1908 if ((cursor.par()->isLineSeparator(cursor.pos())
1909 || cursor.par()->isNewline(cursor.pos())
1910 || cursor.row()->fill() == -1)
1911 && row->previous() && row->previous()->par() == row->par()) {
1912 pos_type z = nextBreakPoint(bview,
1915 if (z >= row->pos()) {
1918 // set the dimensions of the row above
1919 row->previous()->fill(fill(bview,
1923 setHeightOfRow(bview, row->previous());
1925 y -= row->previous()->height();
1927 refresh_row = row->previous();
1928 status(bview, LyXText::NEED_MORE_REFRESH);
1930 breakAgainOneRow(bview, row);
1932 current_font = rawtmpfont;
1933 real_current_font = realtmpfont;
1934 setCursor(bview, cursor.par(), cursor.pos() + 1,
1935 false, cursor.boundary());
1936 // cursor MUST be in row now.
1938 if (row->next() && row->next()->par() == row->par())
1939 need_break_row = row->next();
1943 // check, wether the last characters font has changed.
1944 if (cursor.pos() && cursor.pos() == cursor.par()->size()
1945 && rawparfont != rawtmpfont)
1946 redoHeightOfParagraph(bview, cursor);
1953 // recalculate the fill of the row
1954 if (row->fill() >= 0) /* needed because a newline
1955 * will set fill to -1. Otherwise
1956 * we would not get a rebreak! */
1957 row->fill(fill(bview, row, workWidth(bview)));
1958 if (row->fill() < 0) {
1961 refresh_x = cursor.x();
1962 refresh_pos = cursor.pos();
1963 status(bview, LyXText::NEED_MORE_REFRESH);
1964 breakAgainOneRow(bview, row);
1965 // will the cursor be in another row now?
1966 if (rowLast(row) <= cursor.pos() + 1 && row->next()) {
1967 if (row->next() && row->next()->par() == row->par())
1968 // this should always be true
1970 breakAgainOneRow(bview, row);
1972 current_font = rawtmpfont;
1973 real_current_font = realtmpfont;
1975 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
1977 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
1978 != cursor.boundary())
1979 setCursor(bview, cursor.par(), cursor.pos(), false,
1980 !cursor.boundary());
1981 if (row->next() && row->next()->par() == row->par())
1982 need_break_row = row->next();
1987 refresh_x = cursor.x();
1989 refresh_pos = cursor.pos();
1991 int const tmpheight = row->height();
1992 setHeightOfRow(bview, row);
1993 if (tmpheight == row->height())
1994 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
1996 status(bview, LyXText::NEED_MORE_REFRESH);
1998 current_font = rawtmpfont;
1999 real_current_font = realtmpfont;
2000 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2004 // check, wether the last characters font has changed.
2005 if (cursor.pos() && cursor.pos() == cursor.par()->size()
2006 && rawparfont != rawtmpfont) {
2007 redoHeightOfParagraph(bview, cursor);
2009 // now the special right address boxes
2010 if (textclasslist.Style(bview->buffer()->params.textclass,
2011 cursor.par()->getLayout()).margintype
2012 == MARGIN_RIGHT_ADDRESS_BOX) {
2013 redoDrawingOfParagraph(bview, cursor);
2021 void LyXText::charInserted()
2023 // Here we could call FinishUndo for every 20 characters inserted.
2024 // This is from my experience how emacs does it.
2025 static unsigned int counter;
2035 void LyXText::prepareToPrint(BufferView * bview,
2036 Row * row, float & x,
2037 float & fill_separator,
2039 float & fill_label_hfill,
2045 float w = row->fill();
2047 fill_label_hfill = 0;
2049 fill_label_hfill = 0;
2052 row->par()->isRightToLeftPar(bview->buffer()->params);
2054 x = (workWidth(bview) > 0)
2055 ? rightMargin(bview->buffer(), row) : 0;
2057 x = (workWidth(bview) > 0) ? leftMargin(bview, row) : 0;
2059 // is there a manual margin with a manual label
2060 if (textclasslist.Style(bview->buffer()->params.textclass,
2061 row->par()->getLayout()).margintype == MARGIN_MANUAL
2062 && textclasslist.Style(bview->buffer()->params.textclass,
2063 row->par()->getLayout()).labeltype == LABEL_MANUAL) {
2065 /* one more since labels are left aligned */
2066 nlh = numberOfLabelHfills(bview->buffer(), row) + 1;
2067 if (nlh && !row->par()->getLabelWidthString().empty()) {
2068 fill_label_hfill = labelFill(bview, row) / nlh;
2072 // are there any hfills in the row?
2073 float const nh = numberOfHfills(bview->buffer(), row);
2077 fill_hfill = w / nh;
2079 // is it block, flushleft or flushright?
2080 // set x how you need it
2082 if (row->par()->params().align() == LYX_ALIGN_LAYOUT) {
2083 align = textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()).align;
2085 align = row->par()->params().align();
2088 // center displayed insets
2090 if (row->par()->isInset(row->pos())
2091 && (inset=row->par()->getInset(row->pos()))
2092 && (inset->display())) // || (inset->scroll() < 0)))
2093 align = (inset->lyxCode() == Inset::MATHMACRO_CODE)
2094 ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER;
2097 case LYX_ALIGN_BLOCK:
2098 ns = numberOfSeparators(bview->buffer(), row);
2099 if (ns && row->next() && row->next()->par() == row->par() &&
2100 !(row->next()->par()->isNewline(row->next()->pos() - 1))
2101 && !(row->next()->par()->isInset(row->next()->pos())
2102 && row->next()->par()->getInset(row->next()->pos())
2103 && row->next()->par()->getInset(row->next()->pos())->display())
2106 fill_separator = w / ns;
2107 } else if (is_rtl) {
2111 case LYX_ALIGN_RIGHT:
2114 case LYX_ALIGN_CENTER:
2122 computeBidiTables(bview->buffer(), row);
2124 pos_type main_body =
2125 beginningOfMainBody(bview->buffer(), row->par());
2126 pos_type last = rowLast(row);
2128 if (main_body > 0 &&
2129 (main_body-1 > last ||
2130 !row->par()->isLineSeparator(main_body-1))) {
2131 LyXLayout const & layout =
2132 textclasslist.Style(bview->buffer()->params.textclass,
2133 row->par()->getLayout());
2134 x += lyxfont::width(layout.labelsep,
2135 getLabelFont(bview->buffer(), row->par()));
2136 if (main_body-1 <= last)
2137 x += fill_label_hfill;
2142 /* important for the screen */
2145 /* the cursor set functions have a special mechanism. When they
2146 * realize, that you left an empty paragraph, they will delete it.
2147 * They also delete the corresponding row */
2149 void LyXText::cursorRightOneWord(BufferView * bview) const
2151 // treat floats, HFills and Insets as words
2152 LyXCursor tmpcursor = cursor;
2153 // CHECK See comment on top of text.C
2155 if (tmpcursor.pos() == tmpcursor.par()->size()
2156 && tmpcursor.par()->next()) {
2157 tmpcursor.par(tmpcursor.par()->next());
2162 // Skip through initial nonword stuff.
2163 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2164 ! tmpcursor.par()->isWord(tmpcursor.pos())) {
2165 // printf("Current pos1 %d", tmpcursor.pos()) ;
2166 tmpcursor.pos(tmpcursor.pos() + 1);
2169 // Advance through word.
2170 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2171 tmpcursor.par()->isWord( tmpcursor.pos())) {
2172 // printf("Current pos2 %d", tmpcursor.pos()) ;
2173 tmpcursor.pos(tmpcursor.pos() + 1);
2177 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2181 void LyXText::cursorTab(BufferView * bview) const
2183 LyXCursor tmpcursor = cursor;
2184 while (tmpcursor.pos() < tmpcursor.par()->size()
2185 && !tmpcursor.par()->isNewline(tmpcursor.pos()))
2186 tmpcursor.pos(tmpcursor.pos() + 1);
2188 if (tmpcursor.pos() == tmpcursor.par()->size()){
2189 if (tmpcursor.par()->next()) {
2190 tmpcursor.par(tmpcursor.par()->next());
2194 tmpcursor.pos(tmpcursor.pos() + 1);
2195 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2199 /* -------> Skip initial whitespace at end of word and move cursor to *start*
2200 of prior word, not to end of next prior word. */
2202 void LyXText::cursorLeftOneWord(BufferView * bview) const
2204 LyXCursor tmpcursor = cursor;
2205 cursorLeftOneWord(tmpcursor);
2206 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2209 void LyXText::cursorLeftOneWord(LyXCursor & cur) const
2211 // treat HFills, floats and Insets as words
2214 && (cur.par()->isSeparator(cur.pos() - 1)
2215 || cur.par()->isKomma(cur.pos() - 1))
2216 && !(cur.par()->isHfill(cur.pos() - 1)
2217 || cur.par()->isInset(cur.pos() - 1)))
2218 cur.pos(cur.pos() - 1);
2221 && (cur.par()->isInset(cur.pos() - 1)
2222 || cur.par()->isHfill(cur.pos() - 1))) {
2223 cur.pos(cur.pos() - 1);
2224 } else if (!cur.pos()) {
2225 if (cur.par()->previous()){
2226 cur.par(cur.par()->previous());
2227 cur.pos(cur.par()->size());
2229 } else { // Here, cur != 0
2230 while (cur.pos() > 0 &&
2231 cur.par()->isWord(cur.pos()-1) )
2232 cur.pos(cur.pos() - 1);
2236 /* -------> Select current word. This depends on behaviour of
2237 CursorLeftOneWord(), so it is patched as well. */
2238 void LyXText::getWord(LyXCursor & from, LyXCursor & to,
2239 word_location const loc) const
2241 // first put the cursor where we wana start to select the word
2244 case WHOLE_WORD_STRICT:
2245 if (cursor.pos() == 0 || cursor.pos() == cursor.par()->size()
2246 || cursor.par()->isSeparator(cursor.pos())
2247 || cursor.par()->isKomma(cursor.pos())
2248 || cursor.par()->isSeparator(cursor.pos() -1)
2249 || cursor.par()->isKomma(cursor.pos() -1)) {
2253 // no break here, we go to the next
2256 // Move cursor to the beginning, when not already there.
2257 if (from.pos() && !from.par()->isSeparator(from.pos() - 1)
2258 && !from.par()->isKomma(from.pos() - 1))
2259 cursorLeftOneWord(from);
2262 // always move the cursor to the beginning of previous word
2263 cursorLeftOneWord(from);
2266 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet\n";
2272 while (to.pos() < to.par()->size()
2273 && !to.par()->isSeparator(to.pos())
2274 && !to.par()->isKomma(to.pos())
2275 && !to.par()->isHfill(to.pos()) )
2277 to.pos(to.pos() + 1);
2282 void LyXText::selectWord(BufferView * bview, word_location const loc)
2286 getWord(from, to, loc);
2288 setCursor(bview, from.par(), from.pos());
2291 selection.cursor = cursor;
2292 setCursor(bview, to.par(), to.pos() );
2293 setSelection(bview);
2297 /* -------> Select the word currently under the cursor when no
2298 selection is currently set */
2299 bool LyXText::selectWordWhenUnderCursor(BufferView * bview,
2300 word_location const loc)
2302 if (!selection.set()) {
2303 selectWord(bview, loc);
2304 return selection.set();
2310 // This function is only used by the spellchecker for NextWord().
2311 // It doesn't handle LYX_ACCENTs and probably never will.
2312 string const LyXText::selectNextWordToSpellcheck(BufferView * bview,
2313 float & value) const
2315 if (the_locking_inset) {
2316 string str = the_locking_inset->selectNextWordToSpellcheck(bview, value);
2318 value += float(cursor.y())/float(height);
2321 #warning Dekel please have a look on this one RTL? (Jug)
2323 // we have to go on checking so move cusor to the right
2324 if (cursor.pos() == cursor.par()->size()) {
2325 if (!cursor.par()->next())
2327 cursor.par(cursor.par()->next());
2330 cursor.pos(cursor.pos() + 1);
2332 Paragraph * tmppar = cursor.par();
2334 // If this is not the very first word, skip rest of
2335 // current word because we are probably in the middle
2336 // of a word if there is text here.
2337 if (cursor.pos() || cursor.par()->previous()) {
2338 while (cursor.pos() < cursor.par()->size()
2339 && cursor.par()->isLetter(cursor.pos()))
2340 cursor.pos(cursor.pos() + 1);
2343 // Now, skip until we have real text (will jump paragraphs)
2344 while ((cursor.par()->size() > cursor.pos()
2345 && (!cursor.par()->isLetter(cursor.pos()))
2346 && (!cursor.par()->isInset(cursor.pos()) ||
2347 !cursor.par()->getInset(cursor.pos())->allowSpellcheck()))
2348 || (cursor.par()->size() == cursor.pos()
2349 && cursor.par()->next()))
2351 if (cursor.pos() == cursor.par()->size()) {
2352 cursor.par(cursor.par()->next());
2355 cursor.pos(cursor.pos() + 1);
2358 // now check if we hit an inset so it has to be a inset containing text!
2359 if (cursor.pos() < cursor.par()->size() &&
2360 cursor.par()->isInset(cursor.pos()))
2363 cursor.par()->getInset(cursor.pos())->edit(bview);
2364 // now call us again to do the above trick
2365 // but obviously we have to start from down below ;)
2366 return bview->text->selectNextWordToSpellcheck(bview, value);
2369 // Update the value if we changed paragraphs
2370 if (cursor.par() != tmppar){
2371 setCursor(bview, cursor.par(), cursor.pos());
2372 value = float(cursor.y())/float(height);
2375 // Start the selection from here
2376 selection.cursor = cursor;
2378 // and find the end of the word (insets like optional hyphens
2379 // and ligature break are part of a word)
2380 while (cursor.pos() < cursor.par()->size()
2381 && (cursor.par()->isLetter(cursor.pos())))
2382 cursor.pos(cursor.pos() + 1);
2384 // Finally, we copy the word to a string and return it
2386 if (selection.cursor.pos() < cursor.pos()) {
2388 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
2389 if (!cursor.par()->isInset(i))
2390 str += cursor.par()->getChar(i);
2397 // This one is also only for the spellchecker
2398 void LyXText::selectSelectedWord(BufferView * bview)
2400 if (the_locking_inset) {
2401 the_locking_inset->selectSelectedWord(bview);
2404 // move cursor to the beginning
2405 setCursor(bview, selection.cursor.par(), selection.cursor.pos());
2407 // set the sel cursor
2408 selection.cursor = cursor;
2410 // now find the end of the word
2411 while (cursor.pos() < cursor.par()->size()
2412 && (cursor.par()->isLetter(cursor.pos())))
2413 cursor.pos(cursor.pos() + 1);
2415 setCursor(bview, cursor.par(), cursor.pos());
2417 // finally set the selection
2418 setSelection(bview);
2422 /* -------> Delete from cursor up to the end of the current or next word. */
2423 void LyXText::deleteWordForward(BufferView * bview)
2425 if (!cursor.par()->size())
2428 LyXCursor tmpcursor = cursor;
2429 tmpcursor.row(0); //Â ??
2430 selection.set(true); // to avoid deletion
2431 cursorRightOneWord(bview);
2432 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2433 selection.cursor = cursor;
2435 setSelection(bview);
2437 /* -----> Great, CutSelection() gets rid of multiple spaces. */
2438 cutSelection(bview, true, false);
2443 /* -------> Delete from cursor to start of current or prior word. */
2444 void LyXText::deleteWordBackward(BufferView * bview)
2446 if (!cursor.par()->size())
2449 LyXCursor tmpcursor = cursor;
2450 tmpcursor.row(0); // ??
2451 selection.set(true); // to avoid deletion
2452 cursorLeftOneWord(bview);
2453 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2454 selection.cursor = cursor;
2456 setSelection(bview);
2457 cutSelection(bview, true, false);
2462 /* -------> Kill to end of line. */
2463 void LyXText::deleteLineForward(BufferView * bview)
2465 if (!cursor.par()->size())
2466 // Paragraph is empty, so we just go to the right
2469 LyXCursor tmpcursor = cursor;
2470 // We can't store the row over a regular setCursor
2471 // so we set it to 0 and reset it afterwards.
2472 tmpcursor.row(0); //Â ??
2473 selection.set(true); // to avoid deletion
2475 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2476 selection.cursor = cursor;
2478 setSelection(bview);
2479 // What is this test for ??? (JMarc)
2480 if (!selection.set()) {
2481 deleteWordForward(bview);
2483 cutSelection(bview, true, false);
2489 // Change the case of a word at cursor position.
2490 // This function directly manipulates Paragraph::text because there
2491 // is no Paragraph::SetChar currently. I did what I could to ensure
2492 // that it is correct. I guess part of it should be moved to
2493 // Paragraph, but it will have to change for 1.1 anyway. At least
2494 // it does not access outside of the allocated array as the older
2495 // version did. (JMarc)
2496 void LyXText::changeCase(BufferView * bview, LyXText::TextCase action)
2501 if (selection.set()) {
2502 from = selection.start;
2505 getWord(from, to, PARTIAL_WORD);
2506 setCursor(bview, to.par(), to.pos() + 1);
2509 changeRegionCase(bview, from, to, action);
2513 void LyXText::changeRegionCase(BufferView * bview,
2514 LyXCursor const & from,
2515 LyXCursor const & to,
2516 LyXText::TextCase action)
2518 lyx::Assert(from <= to);
2520 setUndo(bview, Undo::FINISH,
2521 from.par(), to.par()->next());
2523 pos_type pos = from.pos();
2524 Paragraph * par = from.par();
2526 while (par && (pos != to.pos() || par != to.par())) {
2527 unsigned char c = par->getChar(pos);
2528 if (!IsInsetChar(c) && !IsHfillChar(c)) {
2530 case text_lowercase:
2533 case text_capitalization:
2535 action = text_lowercase;
2537 case text_uppercase:
2542 par->setChar(pos, c);
2543 checkParagraph(bview, par, pos);
2546 if (pos == par->size()) {
2551 if (to.row() != from.row()) {
2552 refresh_y = from.y() - from.row()->baseline();
2553 refresh_row = from.row();
2554 status(bview, LyXText::NEED_MORE_REFRESH);
2559 void LyXText::transposeChars(BufferView & bview)
2561 Paragraph * tmppar = cursor.par();
2563 setUndo(&bview, Undo::FINISH,
2564 tmppar, tmppar->next());
2566 pos_type tmppos = cursor.pos();
2568 // First decide if it is possible to transpose at all
2570 // We are at the beginning of a paragraph.
2571 if (tmppos == 0) return;
2573 // We are at the end of a paragraph.
2574 if (tmppos == tmppar->size() - 1) return;
2576 unsigned char c1 = tmppar->getChar(tmppos);
2577 unsigned char c2 = tmppar->getChar(tmppos - 1);
2579 if (c1 != Paragraph::META_INSET
2580 && c2 != Paragraph::META_INSET) {
2581 tmppar->setChar(tmppos, c2);
2582 tmppar->setChar(tmppos - 1, c1);
2584 // We should have an implementation that handles insets
2585 // as well, but that will have to come later. (Lgb)
2586 checkParagraph(const_cast<BufferView*>(&bview), tmppar, tmppos);
2590 void LyXText::Delete(BufferView * bview)
2592 // this is a very easy implementation
2594 LyXCursor old_cursor = cursor;
2595 int const old_cur_par_id = old_cursor.par()->id();
2596 int const old_cur_par_prev_id = old_cursor.par()->previous() ?
2597 old_cursor.par()->previous()->id() : 0;
2599 // just move to the right
2602 // CHECK Look at the comment here.
2603 // This check is not very good...
2604 // The cursorRightIntern calls DeleteEmptyParagrapgMechanism
2605 // and that can very well delete the par or par->previous in
2606 // old_cursor. Will a solution where we compare paragraph id's
2608 if ((cursor.par()->previous() ? cursor.par()->previous()->id() : 0)
2609 == old_cur_par_prev_id
2610 && cursor.par()->id() != old_cur_par_id) {
2611 // delete-empty-paragraph-mechanism has done it
2615 // if you had success make a backspace
2616 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
2617 LyXCursor tmpcursor = cursor;
2618 // to make sure undo gets the right cursor position
2619 cursor = old_cursor;
2620 setUndo(bview, Undo::DELETE,
2621 cursor.par(), cursor.par()->next());
2628 void LyXText::backspace(BufferView * bview)
2630 // Get the font that is used to calculate the baselineskip
2631 pos_type lastpos = cursor.par()->size();
2632 LyXFont rawparfont =
2633 cursor.par()->getFontSettings(bview->buffer()->params,
2636 if (cursor.pos() == 0) {
2637 // The cursor is at the beginning of a paragraph,
2638 // so the the backspace will collapse two paragraphs into one.
2640 // we may paste some paragraphs
2642 // is it an empty paragraph?
2645 || (lastpos == 1 && cursor.par()->isSeparator(0)))) {
2646 // This is an empty paragraph and we delete it just by moving the cursor one step
2647 // left and let the DeleteEmptyParagraphMechanism handle the actual deletion
2648 // of the paragraph.
2650 if (cursor.par()->previous()) {
2651 Paragraph * tmppar = cursor.par()->previous();
2652 if (cursor.par()->getLayout() == tmppar->getLayout()
2653 && cursor.par()->getAlign() == tmppar->getAlign()) {
2654 // Inherit bottom DTD from the paragraph below.
2655 // (the one we are deleting)
2656 tmppar->params().lineBottom(cursor.par()->params().lineBottom());
2657 tmppar->params().spaceBottom(cursor.par()->params().spaceBottom());
2658 tmppar->params().pagebreakBottom(cursor.par()->params().pagebreakBottom());
2663 // the layout things can change the height of a row !
2664 int const tmpheight = cursor.row()->height();
2665 setHeightOfRow(bview, cursor.row());
2666 if (cursor.row()->height() != tmpheight) {
2667 refresh_y = cursor.y() - cursor.row()->baseline();
2668 refresh_row = cursor.row();
2669 status(bview, LyXText::NEED_MORE_REFRESH);
2675 if (cursor.par()->previous()) {
2676 setUndo(bview, Undo::DELETE,
2677 cursor.par()->previous(), cursor.par()->next());
2680 Paragraph * tmppar = cursor.par();
2681 Row * tmprow = cursor.row();
2683 // We used to do cursorLeftIntern() here, but it is
2684 // not a good idea since it triggers the auto-delete
2685 // mechanism. So we do a cursorLeftIntern()-lite,
2686 // without the dreaded mechanism. (JMarc)
2687 if (cursor.par()->previous()) {
2688 // steps into the above paragraph.
2689 setCursorIntern(bview, cursor.par()->previous(),
2690 cursor.par()->previous()->size(),
2694 /* Pasting is not allowed, if the paragraphs have different
2695 layout. I think it is a real bug of all other
2696 word processors to allow it. It confuses the user.
2697 Even so with a footnote paragraph and a non-footnote
2698 paragraph. I will not allow pasting in this case,
2699 because the user would be confused if the footnote behaves
2700 different wether it is open or closed.
2702 Correction: Pasting is always allowed with standard-layout
2704 if (cursor.par() != tmppar
2705 && (cursor.par()->getLayout() == tmppar->getLayout()
2706 || tmppar->getLayout() == 0 /*standard*/)
2707 && cursor.par()->getAlign() == tmppar->getAlign())
2709 removeParagraph(tmprow);
2711 cursor.par()->pasteParagraph(bview->buffer()->params);
2713 if (!cursor.pos() || !cursor.par()->isSeparator(cursor.pos() - 1))
2714 ; //cursor.par()->insertChar(cursor.pos(), ' ');
2715 // strangely enough it seems that commenting out the line above removes
2716 // most or all of the segfaults. I will however also try to move the
2717 // two Remove... lines in front of the PasteParagraph too.
2720 cursor.pos(cursor.pos() - 1);
2722 status(bview, LyXText::NEED_MORE_REFRESH);
2723 refresh_row = cursor.row();
2724 refresh_y = cursor.y() - cursor.row()->baseline();
2726 // remove the lost paragraph
2727 // This one is not safe, since the paragraph that the tmprow and the
2728 // following rows belong to has been deleted by the PasteParagraph
2729 // above. The question is... could this be moved in front of the
2731 //RemoveParagraph(tmprow);
2732 //RemoveRow(tmprow);
2734 // This rebuilds the rows.
2735 appendParagraph(bview, cursor.row());
2736 updateCounters(bview, cursor.row());
2738 // the row may have changed, block, hfills etc.
2739 setCursor(bview, cursor.par(), cursor.pos(), false);
2742 /* this is the code for a normal backspace, not pasting
2744 setUndo(bview, Undo::DELETE,
2745 cursor.par(), cursor.par()->next());
2746 // We used to do cursorLeftIntern() here, but it is
2747 // not a good idea since it triggers the auto-delete
2748 // mechanism. So we do a cursorLeftIntern()-lite,
2749 // without the dreaded mechanism. (JMarc)
2750 setCursorIntern(bview, cursor.par(), cursor.pos()- 1,
2751 false, cursor.boundary());
2753 // some insets are undeletable here
2754 if (cursor.par()->isInset(cursor.pos())) {
2755 if (!cursor.par()->getInset(cursor.pos())->deletable())
2757 // force complete redo when erasing display insets
2758 // this is a cruel method but safe..... Matthias
2759 if (cursor.par()->getInset(cursor.pos())->display() ||
2760 cursor.par()->getInset(cursor.pos())->needFullRow()) {
2761 cursor.par()->erase(cursor.pos());
2762 redoParagraph(bview);
2767 Row * row = cursor.row();
2768 int y = cursor.y() - row->baseline();
2770 /* remember that a space at the end of a row doesnt count
2771 * when calculating the fill */
2772 if (cursor.pos() < rowLast(row) ||
2773 !cursor.par()->isLineSeparator(cursor.pos())) {
2774 row->fill(row->fill() + singleWidth(bview,
2779 /* some special code when deleting a newline. This is similar
2780 * to the behavior when pasting paragraphs */
2781 if (cursor.pos() && cursor.par()->isNewline(cursor.pos())) {
2782 cursor.par()->erase(cursor.pos());
2783 // refresh the positions
2785 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2786 tmprow = tmprow->next();
2787 tmprow->pos(tmprow->pos() - 1);
2789 if (cursor.par()->isLineSeparator(cursor.pos() - 1))
2790 cursor.pos(cursor.pos() - 1);
2792 if (cursor.pos() < cursor.par()->size()
2793 && !cursor.par()->isSeparator(cursor.pos())) {
2794 cursor.par()->insertChar(cursor.pos(), ' ');
2795 setCharFont(bview->buffer(), cursor.par(),
2796 cursor.pos(), current_font);
2797 // refresh the positions
2799 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2800 tmprow = tmprow->next();
2801 tmprow->pos(tmprow->pos() + 1);
2805 cursor.par()->erase(cursor.pos());
2807 // refresh the positions
2809 while (tmprow->next()
2810 && tmprow->next()->par() == row->par()) {
2811 tmprow = tmprow->next();
2812 tmprow->pos(tmprow->pos() - 1);
2815 // delete newlines at the beginning of paragraphs
2816 while (cursor.par()->size() &&
2817 cursor.par()->isNewline(cursor.pos()) &&
2818 cursor.pos() == beginningOfMainBody(bview->buffer(),
2820 cursor.par()->erase(cursor.pos());
2821 // refresh the positions
2823 while (tmprow->next() &&
2824 tmprow->next()->par() == row->par()) {
2825 tmprow = tmprow->next();
2826 tmprow->pos(tmprow->pos() - 1);
2831 // is there a break one row above
2832 if (row->previous() && row->previous()->par() == row->par()) {
2833 z = nextBreakPoint(bview, row->previous(),
2835 if (z >= row->pos()) {
2838 Row * tmprow = row->previous();
2840 // maybe the current row is now empty
2841 if (row->pos() >= row->par()->size()) {
2846 breakAgainOneRow(bview, row);
2847 if (row->next() && row->next()->par() == row->par())
2848 need_break_row = row->next();
2853 // set the dimensions of the row above
2854 y -= tmprow->height();
2855 tmprow->fill(fill(bview, tmprow,
2857 setHeightOfRow(bview, tmprow);
2860 refresh_row = tmprow;
2861 status(bview, LyXText::NEED_MORE_REFRESH);
2862 setCursor(bview, cursor.par(), cursor.pos(),
2863 false, cursor.boundary());
2864 //current_font = rawtmpfont;
2865 //real_current_font = realtmpfont;
2866 // check, whether the last character's font has changed.
2868 cursor.par()->getFontSettings(bview->buffer()->params,
2869 cursor.par()->size() - 1))
2870 redoHeightOfParagraph(bview, cursor);
2875 // break the cursor row again
2876 if (row->next() && row->next()->par() == row->par() &&
2877 (rowLast(row) == row->par()->size() - 1 ||
2878 nextBreakPoint(bview, row, workWidth(bview)) != rowLast(row))) {
2880 /* it can happen that a paragraph loses one row
2881 * without a real breakup. This is when a word
2882 * is to long to be broken. Well, I don t care this
2884 if (rowLast(row) == row->par()->size() - 1)
2885 removeRow(row->next());
2889 status(bview, LyXText::NEED_MORE_REFRESH);
2891 breakAgainOneRow(bview, row);
2892 // will the cursor be in another row now?
2893 if (row->next() && row->next()->par() == row->par() &&
2894 rowLast(row) <= cursor.pos()) {
2896 breakAgainOneRow(bview, row);
2899 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
2901 if (row->next() && row->next()->par() == row->par())
2902 need_break_row = row->next();
2906 // set the dimensions of the row
2907 row->fill(fill(bview, row, workWidth(bview)));
2908 int const tmpheight = row->height();
2909 setHeightOfRow(bview, row);
2910 if (tmpheight == row->height())
2911 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
2913 status(bview, LyXText::NEED_MORE_REFRESH);
2916 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
2920 // current_font = rawtmpfont;
2921 // real_current_font = realtmpfont;
2923 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
2924 != cursor.boundary())
2925 setCursor(bview, cursor.par(), cursor.pos(), false,
2926 !cursor.boundary());
2928 lastpos = cursor.par()->size();
2929 if (cursor.pos() == lastpos)
2930 setCurrentFont(bview);
2932 // check, whether the last characters font has changed.
2934 cursor.par()->getFontSettings(bview->buffer()->params, lastpos - 1)) {
2935 redoHeightOfParagraph(bview, cursor);
2937 // now the special right address boxes
2938 if (textclasslist.Style(bview->buffer()->params.textclass,
2939 cursor.par()->getLayout()).margintype == MARGIN_RIGHT_ADDRESS_BOX) {
2940 redoDrawingOfParagraph(bview, cursor);
2946 bool LyXText::paintRowBackground(DrawRowParams & p)
2948 bool clear_area = true;
2950 LyXFont font(LyXFont::ALL_SANE);
2952 pos_type const last = rowLastPrintable(p.row);
2954 if (!p.bv->screen()->forceClear() && last == p.row->pos()
2955 && p.row->par()->isInset(p.row->pos())) {
2956 inset = p.row->par()->getInset(p.row->pos());
2958 clear_area = inset->doClearArea();
2968 int const y = p.yo < 0 ? 0 : p.yo;
2969 int const h = p.yo < 0 ? p.row->height() + p.yo : p.row->height();
2970 p.pain->fillRectangle(x, y, p.width, h, backgroundColor());
2977 int h = p.row->baseline() - inset->ascent(p.bv, font);
2979 // first clear the whole row above the inset!
2981 p.pain->fillRectangle(p.xo, p.yo, p.width, h, backgroundColor());
2984 // clear the space below the inset!
2985 h += inset->ascent(p.bv, font) + inset->descent(p.bv, font);
2986 if ((p.row->height() - h) > 0) {
2987 p.pain->fillRectangle(p.xo, p.yo + h,
2988 p.width, p.row->height() - h, backgroundColor());
2991 // clear the space behind the inset, if needed
2992 if (!inset->display() && !inset->needFullRow()) {
2993 int const xp = int(p.x) + inset->width(p.bv, font);
2994 if (p.width - xp > 0) {
2995 p.pain->fillRectangle(xp, p.yo, p.width - xp,
2996 p.row->height(), backgroundColor());
3004 void LyXText::paintRowSelection(DrawRowParams & p)
3006 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3008 // the current selection
3009 int const startx = selection.start.x();
3010 int const endx = selection.end.x();
3011 int const starty = selection.start.y();
3012 int const endy = selection.end.y();
3013 Row const * startrow = selection.start.row();
3014 Row const * endrow = selection.end.row();
3018 if (bidi_same_direction) {
3022 int h = row->height();
3024 if (startrow == row && endrow == row) {
3025 if (startx < endx) {
3028 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3032 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3034 } else if (startrow == row) {
3035 int const x = (is_rtl) ? p.xo : (p.xo + startx);
3036 int const w = (is_rtl) ? startx : (p.width - startx);
3037 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3038 } else if (endrow == row) {
3039 int const x = (is_rtl) ? (p.xo + endx) : p.xo;
3040 int const w = (is_rtl) ? (p.width - endx) : endx;
3041 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3042 } else if (p.y > starty && p.y < endy) {
3043 p.pain->fillRectangle(p.xo, y, p.width, h, LColor::selection);
3046 } else if (startrow != row && endrow != row) {
3048 int h = row->height();
3049 if (p.y > starty && p.y < endy) {
3050 p.pain->fillRectangle(p.xo, p.yo, w, h, LColor::selection);
3055 if (!((startrow != row && !is_rtl) || (endrow != row && is_rtl))) {
3061 p.pain->fillRectangle(p.xo, p.yo, int(p.x), row->height(), LColor::selection);
3063 Buffer const * buffer = p.bv->buffer();
3064 Paragraph * par = row->par();
3065 pos_type main_body = beginningOfMainBody(buffer, par);
3066 pos_type const last = rowLastPrintable(row);
3068 for (pos_type vpos = row->pos(); vpos <= last; ++vpos) {
3069 pos_type pos = vis2log(vpos);
3070 float const old_tmpx = tmpx;
3071 if (main_body > 0 && pos == main_body - 1) {
3072 LyXLayout const & layout = textclasslist.Style(buffer->params.textclass,
3074 LyXFont const lfont = getLabelFont(buffer, par);
3077 tmpx += p.label_hfill + lyxfont::width(layout.labelsep, lfont);
3079 if (par->isLineSeparator(main_body - 1))
3080 tmpx -= singleWidth(p.bv, par, main_body - 1);
3083 if (hfillExpansion(buffer, row, pos)) {
3084 tmpx += singleWidth(p.bv, par, pos);
3085 if (pos >= main_body)
3088 tmpx += p.label_hfill;
3091 else if (par->isSeparator(pos)) {
3092 tmpx += singleWidth(p.bv, par, pos);
3093 if (pos >= main_body)
3094 tmpx += p.separator;
3096 tmpx += singleWidth(p.bv, par, pos);
3099 if ((startrow != row || selection.start.pos() <= pos) &&
3100 (endrow != row || pos < selection.end.pos())) {
3101 // Here we do not use p.x as p.xo was added to p.x.
3102 p.pain->fillRectangle(int(old_tmpx), p.yo,
3103 int(tmpx - old_tmpx + 1),
3104 row->height(), LColor::selection);
3107 if ((startrow != row && is_rtl) || (endrow != row && !is_rtl)) {
3108 p.pain->fillRectangle(p.xo + int(tmpx),
3109 p.yo, int(p.bv->workWidth() - tmpx),
3110 row->height(), LColor::selection);
3116 void LyXText::paintRowAppendix(DrawRowParams & p)
3118 // FIXME: can be just p.width ?
3119 int const ww = p.bv->workWidth();
3120 Paragraph * firstpar = p.row->par();
3122 if (firstpar->params().appendix()) {
3123 p.pain->line(1, p.yo, 1, p.yo + p.row->height(), LColor::appendixline);
3124 p.pain->line(ww - 2, p.yo, ww - 2, p.yo + p.row->height(), LColor::appendixline);
3129 void LyXText::paintRowDepthBar(DrawRowParams & p)
3131 Paragraph::depth_type const depth = p.row->par()->getDepth();
3136 Paragraph::depth_type prev_depth = 0;
3137 if (p.row->previous())
3138 prev_depth = p.row->previous()->par()->getDepth();
3139 Paragraph::depth_type next_depth = 0;
3141 next_depth = p.row->next()->par()->getDepth();
3143 for (Paragraph::depth_type i = 1; i <= depth; ++i) {
3144 int const x = (LYX_PAPER_MARGIN / 5) * i + p.xo;
3145 int const h = p.yo + p.row->height() - 1 - (i - next_depth - 1) * 3;
3147 p.pain->line(x, p.yo, x, h, LColor::depthbar);
3149 int const w = LYX_PAPER_MARGIN / 5;
3151 if (i > prev_depth) {
3152 p.pain->fillRectangle(x, p.yo, w, 2, LColor::depthbar);
3154 if (i > next_depth) {
3155 p.pain->fillRectangle(x, h, w, 2, LColor::depthbar);
3161 int LyXText::getLengthMarkerHeight(BufferView * bv, VSpace const & vsp) const
3163 int const arrow_size = 4;
3164 int const space_size = int(vsp.inPixels(bv));
3166 if (vsp.kind() != VSpace::LENGTH) {
3172 int const min_size = std::max(3 * arrow_size,
3173 lyxfont::maxAscent(font)
3174 + lyxfont::maxDescent(font));
3176 if (vsp.length().len().value() < 0.0)
3179 return std::max(min_size, space_size);
3183 int LyXText::drawLengthMarker(DrawRowParams & p, string const & prefix,
3184 VSpace const & vsp, int start)
3186 int const arrow_size = 4;
3187 int const size = getLengthMarkerHeight(p.bv, vsp);
3188 int const end = start + size;
3190 // the label to display (if any)
3192 // y-values for top arrow
3194 // y-values for bottom arrow
3196 switch (vsp.kind()) {
3197 case VSpace::LENGTH:
3199 str = prefix + " (" + vsp.asLyXCommand() + ")";
3200 // adding or removing space
3201 bool const added = !(vsp.length().len().value() < 0.0);
3202 ty1 = added ? (start + arrow_size) : start;
3203 ty2 = added ? start : (start + arrow_size);
3204 by1 = added ? (end - arrow_size) : end;
3205 by2 = added ? end : (end - arrow_size);
3208 case VSpace:: VFILL:
3209 str = prefix + " (vertical fill)";
3214 // nothing to draw here
3218 int const leftx = p.xo + leftMargin(p.bv, p.row);
3219 int const midx = leftx + arrow_size;
3220 int const rightx = midx + arrow_size;
3228 font.setColor(LColor::added_space).decSize();
3229 lyxfont::rectText(str, font, w, a, d);
3231 p.pain->rectText(leftx + 2 * arrow_size + 5,
3232 start + ((end - start) / 2) + d,
3238 p.pain->line(leftx, ty1, midx, ty2, LColor::added_space);
3239 p.pain->line(midx, ty2, rightx, ty1, LColor::added_space);
3242 p.pain->line(leftx, by1, midx, by2, LColor::added_space);
3243 p.pain->line(midx, by2, rightx, by1, LColor::added_space);
3246 p.pain->line(midx, ty2, midx, by2, LColor::added_space);
3252 void LyXText::paintFirstRow(DrawRowParams & p)
3254 Paragraph * par = p.row->par();
3255 ParagraphParameters const & parparams = par->params();
3257 // start of appendix?
3258 if (parparams.startOfAppendix()) {
3259 p.pain->line(1, p.yo, p.width - 2, p.yo, LColor::appendixline);
3264 // think about the margins
3265 if (!p.row->previous() && bv_owner)
3266 y_top += LYX_PAPER_MARGIN;
3268 // draw a top pagebreak
3269 if (parparams.pagebreakTop()) {
3270 int const y = p.yo + y_top + 2*defaultHeight();
3271 p.pain->line(p.xo, y, p.xo + p.width, y,
3272 LColor::pagebreak, Painter::line_onoffdash);
3279 pb_font.setColor(LColor::pagebreak).decSize();
3280 lyxfont::rectText(_("Page Break (top)"), pb_font, w, a, d);
3281 p.pain->rectText((p.width - w)/2, y + d,
3282 _("Page Break (top)"), pb_font,
3285 y_top += 3 * defaultHeight();
3288 // draw the additional space if needed:
3289 y_top += drawLengthMarker(p, _("Space above"),
3290 parparams.spaceTop(), p.yo + y_top);
3292 Buffer const * buffer = p.bv->buffer();
3294 LyXLayout const & layout =
3295 textclasslist.Style(buffer->params.textclass, par->getLayout());
3297 // think about the parskip
3298 // some parskips VERY EASY IMPLEMENTATION
3299 if (buffer->params.paragraph_separation == BufferParams::PARSEP_SKIP) {
3300 if (par->previous()) {
3301 if (layout.latextype == LATEX_PARAGRAPH
3302 && !par->getDepth()) {
3303 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3305 LyXLayout const & playout =
3306 textclasslist.Style(buffer->params.textclass,
3307 par->previous()->getLayout());
3308 if (playout.latextype == LATEX_PARAGRAPH
3309 && !par->previous()->getDepth()) {
3310 // is it right to use defskip here, too? (AS)
3311 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3317 int const ww = p.bv->workWidth();
3320 if (parparams.lineTop()) {
3321 LyXFont font(LyXFont::ALL_SANE);
3322 int const asc = lyxfont::ascent('x', getFont(buffer, par, 0));
3326 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3327 int const xp = static_cast<int>(inset_owner ? p.x : 0);
3328 p.pain->line(xp, p.yo + y_top, w, p.yo + y_top,
3329 LColor::topline, Painter::line_solid,
3330 Painter::line_thick);
3335 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3337 // should we print a label?
3338 if (layout.labeltype >= LABEL_STATIC
3339 && (layout.labeltype != LABEL_STATIC
3340 || layout.latextype != LATEX_ENVIRONMENT
3341 || par->isFirstInSequence())) {
3343 LyXFont font = getLabelFont(buffer, par);
3344 if (!par->getLabelstring().empty()) {
3346 string const str = par->getLabelstring();
3348 // this is special code for the chapter layout. This is
3349 // printed in an extra row and has a pagebreak at
3351 if (layout.labeltype == LABEL_COUNTER_CHAPTER) {
3352 if (buffer->params.secnumdepth >= 0) {
3353 float spacing_val = 1.0;
3354 if (!parparams.spacing().isDefault()) {
3355 spacing_val = parparams.spacing().getValue();
3357 spacing_val = buffer->params.spacing.getValue();
3361 int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val)
3362 + int(layout.parsep) * defaultHeight();
3365 x = ww - leftMargin(p.bv, p.row) -
3366 lyxfont::width(str, font);
3369 p.pain->text(int(x),
3370 p.yo + p.row->baseline() -
3371 p.row->ascent_of_text() - maxdesc,
3376 x = ww - leftMargin(p.bv, p.row)
3377 + lyxfont::width(layout.labelsep, font);
3379 x = p.x - lyxfont::width(layout.labelsep, font)
3380 - lyxfont::width(str, font);
3383 p.pain->text(int(x), p.yo + p.row->baseline(), str, font);
3386 // the labels at the top of an environment.
3387 // More or less for bibliography
3388 } else if (par->isFirstInSequence() &&
3389 (layout.labeltype == LABEL_TOP_ENVIRONMENT ||
3390 layout.labeltype == LABEL_BIBLIO ||
3391 layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
3392 LyXFont font = getLabelFont(buffer, par);
3393 if (!par->getLabelstring().empty()) {
3394 string const str = par->getLabelstring();
3395 float spacing_val = 1.0;
3396 if (!parparams.spacing().isDefault()) {
3397 spacing_val = parparams.spacing().getValue();
3399 spacing_val = buffer->params.spacing.getValue();
3403 int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val
3404 + (layout.labelbottomsep * defaultHeight()));
3407 if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
3408 x = ((is_rtl ? leftMargin(p.bv, p.row) : p.x)
3409 + ww - rightMargin(buffer, p.row) ) / 2;
3410 x -= lyxfont::width(str, font) / 2;
3411 } else if (is_rtl) {
3412 x = ww - leftMargin(p.bv, p.row) -
3413 lyxfont::width(str, font);
3415 p.pain->text(int(x), p.yo + p.row->baseline()
3416 - p.row->ascent_of_text() - maxdesc,
3421 if (layout.labeltype == LABEL_BIBLIO && par->bibkey) {
3422 LyXFont font = getLayoutFont(buffer, par);
3425 x = ww - leftMargin(p.bv, p.row)
3426 + lyxfont::width(layout.labelsep, font);
3428 x = p.x - lyxfont::width(layout.labelsep, font)
3429 - par->bibkey->width(p.bv, font);
3431 par->bibkey->draw(p.bv, font, p.yo + p.row->baseline(), x, p.cleared);
3436 void LyXText::paintLastRow(DrawRowParams & p)
3438 Paragraph * par = p.row->par();
3439 ParagraphParameters const & parparams = par->params();
3440 int y_bottom = p.row->height() - 1;
3442 // think about the margins
3443 if (!p.row->next() && bv_owner)
3444 y_bottom -= LYX_PAPER_MARGIN;
3446 int const ww = p.bv->workWidth();
3448 // draw a bottom pagebreak
3449 if (parparams.pagebreakBottom()) {
3451 pb_font.setColor(LColor::pagebreak).decSize();
3452 int const y = p.yo + y_bottom - 2 * defaultHeight();
3454 p.pain->line(p.xo, y, p.xo + p.width, y, LColor::pagebreak,
3455 Painter::line_onoffdash);
3460 lyxfont::rectText(_("Page Break (bottom)"), pb_font, w, a, d);
3461 p.pain->rectText((ww - w) / 2, y + d,
3462 _("Page Break (bottom)"),
3463 pb_font, backgroundColor(), backgroundColor());
3465 y_bottom -= 3 * defaultHeight();
3468 // draw the additional space if needed:
3469 int const height = getLengthMarkerHeight(p.bv,
3470 parparams.spaceBottom());
3471 y_bottom -= drawLengthMarker(p, _("Space below"),
3472 parparams.spaceBottom(),
3473 p.yo + y_bottom - height);
3475 Buffer const * buffer = p.bv->buffer();
3477 // draw a bottom line
3478 if (parparams.lineBottom()) {
3479 LyXFont font(LyXFont::ALL_SANE);
3480 int const asc = lyxfont::ascent('x',
3481 getFont(buffer, par,
3482 max(pos_type(0), par->size() - 1)));
3486 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3487 int const xp = static_cast<int>(inset_owner ? p.x : 0);
3488 int const y = p.yo + y_bottom;
3489 p.pain->line(xp, y, w, y, LColor::topline, Painter::line_solid,
3490 Painter::line_thick);
3495 pos_type const last = rowLastPrintable(p.row);
3496 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3497 int const endlabel = par->getEndLabel(buffer->params);
3502 case END_LABEL_FILLED_BOX:
3504 LyXFont const font = getFont(buffer, par, last);
3505 int const size = int(0.75 * lyxfont::maxAscent(font));
3506 int const y = (p.yo + p.row->baseline()) - size;
3507 int x = is_rtl ? LYX_PAPER_MARGIN : ww - LYX_PAPER_MARGIN - size;
3509 if (p.row->fill() <= size)
3510 x += (size - p.row->fill() + 1) * (is_rtl ? -1 : 1);
3512 if (endlabel == END_LABEL_BOX) {
3513 p.pain->line(x, y, x, y + size, LColor::eolmarker);
3514 p.pain->line(x + size, y, x + size , y + size, LColor::eolmarker);
3515 p.pain->line(x, y, x + size, y, LColor::eolmarker);
3516 p.pain->line(x, y + size, x + size, y + size, LColor::eolmarker);
3518 p.pain->fillRectangle(x, y, size, size, LColor::eolmarker);
3522 case END_LABEL_STATIC:
3524 LyXFont font(LyXFont::ALL_SANE);
3525 LyXTextClass::LayoutList::size_type layout = par->getLayout();
3526 string const str = textclasslist.
3527 Style(buffer->params.textclass, layout).endlabelstring();
3528 font = getLabelFont(buffer, par);
3529 int const x = is_rtl ?
3530 int(p.x) - lyxfont::width(str, font)
3531 : ww - rightMargin(buffer, p.row) - p.row->fill();
3532 p.pain->text(x, p.yo + p.row->baseline(), str, font);
3535 case END_LABEL_NO_LABEL:
3540 void LyXText::paintRowText(DrawRowParams & p)
3542 Paragraph * par = p.row->par();
3543 Buffer const * buffer = p.bv->buffer();
3545 pos_type const last = rowLastPrintable(p.row);
3546 pos_type main_body =
3547 beginningOfMainBody(buffer, par);
3548 if (main_body > 0 &&
3549 (main_body - 1 > last ||
3550 !par->isLineSeparator(main_body - 1))) {
3554 LyXLayout const & layout =
3555 textclasslist.Style(buffer->params.textclass, par->getLayout());
3557 pos_type vpos = p.row->pos();
3558 while (vpos <= last) {
3559 pos_type pos = vis2log(vpos);
3560 if (main_body > 0 && pos == main_body - 1) {
3561 int const lwidth = lyxfont::width(layout.labelsep,
3562 getLabelFont(buffer, par));
3564 p.x += p.label_hfill + lwidth
3565 - singleWidth(p.bv, par, main_body - 1);
3568 if (par->isHfill(pos)) {
3571 int const y0 = p.yo + p.row->baseline();
3572 int const y1 = y0 - defaultHeight() / 2;
3574 p.pain->line(int(p.x), y1, int(p.x), y0,
3575 LColor::added_space);
3577 if (hfillExpansion(buffer, p.row, pos)) {
3578 int const y2 = (y0 + y1) / 2;
3580 if (pos >= main_body) {
3581 p.pain->line(int(p.x), y2,
3582 int(p.x + p.hfill), y2,
3583 LColor::added_space,
3584 Painter::line_onoffdash);
3587 p.pain->line(int(p.x), y2,
3588 int(p.x + p.label_hfill), y2,
3589 LColor::added_space,
3590 Painter::line_onoffdash);
3591 p.x += p.label_hfill;
3593 p.pain->line(int(p.x), y1,
3595 LColor::added_space);
3599 } else if (par->isSeparator(pos)) {
3600 p.x += singleWidth(p.bv, par, pos);
3601 if (pos >= main_body)
3611 void LyXText::getVisibleRow(BufferView * bv, int y_offset, int x_offset,
3612 Row * row, int y, bool cleared)
3614 if (row->height() <= 0) {
3615 lyxerr << "LYX_ERROR: row.height: "
3616 << row->height() << endl;
3622 // set up drawing parameters
3624 p.pain = &bv->painter();
3628 prepareToPrint(bv, row, p.x, p.separator, p.hfill, p.label_hfill);
3629 if (inset_owner && (p.x < 0))
3633 p.width = inset_owner ? inset_owner->textWidth(bv, true) : bv->workWidth();
3634 p.cleared = cleared;
3638 // clear to background if necessary
3639 p.cleared = paintRowBackground(p);
3641 // paint the selection background
3642 if (selection.set()) {
3643 paintRowSelection(p);
3646 // vertical lines for appendix
3647 paintRowAppendix(p);
3649 // environment depth brackets
3650 paintRowDepthBar(p);
3652 // draw any stuff wanted for a first row of a paragraph
3657 // draw any stuff wanted for the last row of a paragraph
3658 if (!row->next() || (row->next()->par() != row->par())) {
3667 int LyXText::defaultHeight() const
3669 LyXFont font(LyXFont::ALL_SANE);
3670 return int(lyxfont::maxAscent(font) + lyxfont::maxDescent(font) * 1.5);
3674 /* returns the column near the specified x-coordinate of the row
3675 * x is set to the real beginning of this column */
3677 LyXText::getColumnNearX(BufferView * bview, Row * row, int & x,
3678 bool & boundary) const
3681 float fill_separator;
3683 float fill_label_hfill;
3685 prepareToPrint(bview, row, tmpx, fill_separator,
3686 fill_hfill, fill_label_hfill);
3688 pos_type vc = row->pos();
3689 pos_type last = rowLastPrintable(row);
3691 LyXLayout const & layout =
3692 textclasslist.Style(bview->buffer()->params.textclass,
3693 row->par()->getLayout());
3694 bool left_side = false;
3696 pos_type main_body = beginningOfMainBody(bview->buffer(), row->par());
3697 float last_tmpx = tmpx;
3699 if (main_body > 0 &&
3700 (main_body - 1 > last ||
3701 !row->par()->isLineSeparator(main_body - 1)))
3704 while (vc <= last && tmpx <= x) {
3707 if (main_body > 0 && c == main_body-1) {
3708 tmpx += fill_label_hfill +
3709 lyxfont::width(layout.labelsep,
3710 getLabelFont(bview->buffer(), row->par()));
3711 if (row->par()->isLineSeparator(main_body - 1))
3712 tmpx -= singleWidth(bview, row->par(), main_body-1);
3715 if (hfillExpansion(bview->buffer(), row, c)) {
3716 x += singleWidth(bview, row->par(), c);
3720 tmpx += fill_label_hfill;
3722 else if (row->par()->isSeparator(c)) {
3723 tmpx += singleWidth(bview, row->par(), c);
3725 tmpx+= fill_separator;
3727 tmpx += singleWidth(bview, row->par(), c);
3731 if ((tmpx + last_tmpx) / 2 > x) {
3736 if (vc > last + 1) // This shouldn't happen.
3740 bool const lastrow = lyxrc.rtl_support // This is not needed, but gives
3741 // some speedup if rtl_support=false
3742 && (!row->next() || row->next()->par() != row->par());
3743 bool const rtl = (lastrow)
3744 ? row->par()->isRightToLeftPar(bview->buffer()->params)
3745 : false; // If lastrow is false, we don't need to compute
3746 // the value of rtl.
3748 if (row->pos() > last) // Row is empty?
3751 ( ( rtl && left_side && vc == row->pos() && x < tmpx - 5) ||
3752 (!rtl && !left_side && vc == last + 1 && x > tmpx + 5) ))
3754 else if (vc == row->pos()) {
3756 if (bidi_level(c) % 2 == 1)
3759 c = vis2log(vc - 1);
3760 bool const rtl = (bidi_level(c) % 2 == 1);
3761 if (left_side == rtl) {
3763 boundary = isBoundary(bview->buffer(), row->par(), c);
3767 if (row->pos() <= last && c > last
3768 && row->par()->isNewline(last)) {
3769 if (bidi_level(last) % 2 == 0)
3770 tmpx -= singleWidth(bview, row->par(), last);
3772 tmpx += singleWidth(bview, row->par(), last);
3782 // returns pointer to a specified row
3783 Row * LyXText::getRow(Paragraph * par, pos_type pos, int & y) const
3788 Row * tmprow = firstrow;
3791 // find the first row of the specified paragraph
3792 while (tmprow->next() && tmprow->par() != par) {
3793 y += tmprow->height();
3794 tmprow = tmprow->next();
3797 // now find the wanted row
3798 while (tmprow->pos() < pos
3800 && tmprow->next()->par() == par
3801 && tmprow->next()->pos() <= pos) {
3802 y += tmprow->height();
3803 tmprow = tmprow->next();
3810 Row * LyXText::getRowNearY(int & y) const
3812 // If possible we should optimize this method. (Lgb)
3813 Row * tmprow = firstrow;
3816 while (tmprow->next() && tmpy + tmprow->height() <= y) {
3817 tmpy += tmprow->height();
3818 tmprow = tmprow->next();
3821 y = tmpy; // return the real y
3826 int LyXText::getDepth() const
3828 return cursor.par()->getDepth();