1 /* This file is part of
2 * ======================================================
4 * LyX, The Document Processor
6 * Copyright 1995 Matthias Ettrich
7 * Copyright 1995-2001 The LyX Team.
9 * ====================================================== */
15 #include "lyxtextclasslist.h"
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 par = inset->parOwner();
76 pos = par->getPositionOfInset(inset);
78 if (!par || pos == -1) {
79 lyxerr << "LyXText::workWidth: something is wrong,"
80 " fall back to the brute force method" << endl;
81 Buffer::inset_iterator it = bview->buffer()->inset_iterator_begin();
82 Buffer::inset_iterator end = bview->buffer()->inset_iterator_end();
83 for ( ; it != end; ++it) {
93 return workWidth(bview);
96 LyXLayout const & layout =
97 textclasslist.Style(bview->buffer()->params.textclass,
100 if (layout.margintype != MARGIN_RIGHT_ADDRESS_BOX) {
101 // Optimization here: in most cases, the real row is
102 // not needed, but only the par/pos values. So we just
103 // construct a dummy row for leftMargin. (JMarc)
107 return workWidth(bview) - leftMargin(bview, &dummyrow);
110 Row * row = getRow(par, pos, dummy_y);
112 while (frow->previous() && frow->par() == frow->previous()->par())
113 frow = frow->previous();
114 unsigned int maxw = 0;
115 while (frow->next() && frow->par() == frow->next()->par()) {
116 if ((frow != row) && (maxw < frow->width()))
117 maxw = frow->width();
123 return workWidth(bview);
127 int LyXText::getRealCursorX(BufferView * bview) const
130 if (the_locking_inset && (the_locking_inset->getLyXText(bview)!=this))
131 x = the_locking_inset->getLyXText(bview)->getRealCursorX(bview);
136 unsigned char LyXText::transformChar(unsigned char c, Paragraph * par,
139 if (!Encodings::is_arabic(c))
140 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
141 return c + (0xb0 - '0');
145 unsigned char const prev_char = pos > 0 ? par->getChar(pos-1) : ' ';
146 unsigned char next_char = ' ';
148 for (pos_type i = pos+1; i < par->size(); ++i)
149 if (!Encodings::IsComposeChar_arabic(par->getChar(i))) {
150 next_char = par->getChar(i);
154 if (Encodings::is_arabic(next_char)) {
155 if (Encodings::is_arabic(prev_char))
156 return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
158 return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
160 if (Encodings::is_arabic(prev_char))
161 return Encodings::TransformChar(c, Encodings::FORM_FINAL);
163 return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
167 // This is the comments that some of the warnings below refers to.
168 // There are some issues in this file and I don't think they are
169 // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that
170 // this is a problem that has been here almost from day one and that a
171 // larger userbase with differenct access patters triggers the bad
172 // behaviour. (segfaults.) What I think happen is: In several places
173 // we store the paragraph in the current cursor and then moves the
174 // cursor. This movement of the cursor will delete paragraph at the
175 // old position if it is now empty. This will make the temporary
176 // pointer to the old cursor paragraph invalid and dangerous to use.
177 // And is some cases this will trigger a segfault. I have marked some
178 // of the cases where this happens with a warning, but I am sure there
179 // are others in this file and in text2.C. There is also a note in
180 // Delete() that you should read. In Delete I store the paragraph->id
181 // instead of a pointer to the paragraph. I am pretty sure this faulty
182 // use of temporary pointers to paragraphs that might have gotten
183 // invalidated (through a cursor movement) before they are used, are
184 // the cause of the strange crashes we get reported often.
186 // It is very tiresom to change this code, especially when it is as
187 // hard to read as it is. Help to fix all the cases where this is done
188 // would be greately appreciated.
192 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
195 char const c = par->getChar(pos);
196 return singleWidth(bview, par, pos, c);
200 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
201 pos_type pos, char c) const
203 LyXFont const font = getFont(bview->buffer(), par, pos);
205 // The most common case is handled first (Asger)
206 if (IsPrintable(c)) {
207 if (font.language()->RightToLeft()) {
208 if (font.language()->lang() == "arabic" &&
209 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
210 lyxrc.font_norm_type == LyXRC::ISO_10646_1))
211 if (Encodings::IsComposeChar_arabic(c))
214 c = transformChar(c, par, pos);
215 else if (font.language()->lang() == "hebrew" &&
216 Encodings::IsComposeChar_hebrew(c))
219 return lyxfont::width(c, font);
221 } else if (IsHfillChar(c)) {
222 return 3; /* Because of the representation
223 * as vertical lines */
224 } else if (c == Paragraph::META_INSET) {
225 Inset * tmpinset = par->getInset(pos);
228 // this IS needed otherwise on initialitation we don't get the fill
229 // of the row right (ONLY on initialization if we read a file!)
230 // should be changed! (Jug 20011204)
231 tmpinset->update(bview, font);
233 return tmpinset->width(bview, font);
237 } else if (IsSeparatorChar(c))
239 else if (IsNewlineChar(c))
241 return lyxfont::width(c, font);
245 // Returns the paragraph position of the last character in the specified row
246 pos_type LyXText::rowLast(Row const * row) const
248 if (!row->next() || row->next()->par() != row->par()) {
249 return row->par()->size() - 1;
251 return row->next()->pos() - 1;
256 pos_type LyXText::rowLastPrintable(Row const * row) const
258 pos_type const last = rowLast(row);
259 if (last >= row->pos()
261 && row->next()->par() == row->par()
262 && row->par()->isSeparator(last))
269 void LyXText::computeBidiTables(Buffer const * buf, Row * row) const
271 bidi_same_direction = true;
272 if (!lyxrc.rtl_support) {
277 bidi_start = row->pos();
278 bidi_end = rowLastPrintable(row);
280 if (bidi_start > bidi_end) {
285 if (bidi_end + 2 - bidi_start >
286 static_cast<pos_type>(log2vis_list.size())) {
288 (bidi_end + 2 - bidi_start < 500) ?
289 500 : 2 * (bidi_end + 2 - bidi_start);
290 log2vis_list.resize(new_size);
291 vis2log_list.resize(new_size);
292 bidi_levels.resize(new_size);
295 vis2log_list[bidi_end + 1 - bidi_start] = -1;
296 log2vis_list[bidi_end + 1 - bidi_start] = -1;
300 row->par()->getParLanguage(buf->params)->RightToLeft();
304 pos_type const main_body = beginningOfMainBody(buf, row->par());
306 for (pos_type lpos = bidi_start;
307 lpos <= bidi_end; ++lpos) {
308 bool is_space = row->par()->isLineSeparator(lpos);
310 (is_space && lpos + 1 <= bidi_end &&
311 !row->par()->isLineSeparator(lpos + 1) &&
312 !row->par()->isNewline(lpos + 1))
314 LyXFont font = row->par()->getFontSettings(buf->params, pos);
315 if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() &&
316 font.number() == LyXFont::ON &&
317 row->par()->getFontSettings(buf->params, lpos - 1).number()
319 font = row->par()->getFontSettings(buf->params, lpos);
324 bool new_rtl = font.isVisibleRightToLeft();
325 bool new_rtl0 = font.isRightToLeft();
328 if (lpos == main_body - 1
329 && row->pos() < main_body - 1
331 new_level = (rtl_par) ? 1 : 0;
332 new_rtl = new_rtl0 = rtl_par;
334 new_level = (new_rtl) ? 1 : 2;
336 new_level = (rtl_par) ? 2 : 0;
338 if (is_space && new_level >= level) {
344 int new_level2 = new_level;
346 if (level == new_level && rtl0 != new_rtl0) {
348 log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1;
349 } else if (level < new_level) {
350 log2vis_list[lpos - bidi_start] = (rtl) ? -1 : 1;
351 if (new_level > rtl_par)
352 bidi_same_direction = false;
354 log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1;
357 bidi_levels[lpos - bidi_start] = new_level;
359 while (level > new_level2) {
360 pos_type old_lpos = stack[--level];
361 int delta = lpos - old_lpos - 1;
364 log2vis_list[lpos - bidi_start] += delta;
365 log2vis_list[old_lpos - bidi_start] += delta;
367 while (level < new_level)
368 stack[level++] = lpos;
372 pos_type const old_lpos = stack[--level];
373 int delta = bidi_end - old_lpos;
376 log2vis_list[old_lpos - bidi_start] += delta;
379 pos_type vpos = bidi_start - 1;
380 for (pos_type lpos = bidi_start;
381 lpos <= bidi_end; ++lpos) {
382 vpos += log2vis_list[lpos - bidi_start];
383 vis2log_list[vpos - bidi_start] = lpos;
384 log2vis_list[lpos - bidi_start] = vpos;
389 // This method requires a previous call to ComputeBidiTables()
390 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
393 if (!lyxrc.rtl_support || pos == 0)
396 if (!bidi_InRange(pos - 1)) {
397 /// This can happen if pos is the first char of a row.
398 /// Returning false in this case is incorrect!
402 bool const rtl = bidi_level(pos - 1) % 2;
403 bool const rtl2 = bidi_InRange(pos)
404 ? bidi_level(pos) % 2
405 : par->isRightToLeftPar(buf->params);
410 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
411 pos_type pos, LyXFont const & font) const
413 if (!lyxrc.rtl_support)
414 return false; // This is just for speedup
416 bool const rtl = font.isVisibleRightToLeft();
417 bool const rtl2 = bidi_InRange(pos)
418 ? bidi_level(pos) % 2
419 : par->isRightToLeftPar(buf->params);
423 void LyXText::drawNewline(DrawRowParams & p, pos_type const pos)
425 // Draw end-of-line marker
426 LyXFont const font = getFont(p.bv->buffer(), p.row->par(), pos);
427 int const wid = lyxfont::width('n', font);
428 int const asc = lyxfont::maxAscent(font);
429 int const y = p.yo + p.row->baseline();
433 yp[0] = int(y - 0.875 * asc * 0.75);
434 yp[1] = int(y - 0.500 * asc * 0.75);
435 yp[2] = int(y - 0.125 * asc * 0.75);
437 if (bidi_level(pos) % 2 == 0) {
438 xp[0] = int(p.x + wid * 0.375);
440 xp[2] = int(p.x + wid * 0.375);
442 xp[0] = int(p.x + wid * 0.625);
443 xp[1] = int(p.x + wid);
444 xp[2] = int(p.x + wid * 0.625);
447 p.pain->lines(xp, yp, 3, LColor::eolmarker);
449 yp[0] = int(y - 0.500 * asc * 0.75);
450 yp[1] = int(y - 0.500 * asc * 0.75);
451 yp[2] = int(y - asc * 0.75);
453 if (bidi_level(pos) % 2 == 0) {
455 xp[1] = int(p.x + wid);
456 xp[2] = int(p.x + wid);
458 xp[0] = int(p.x + wid);
463 p.pain->lines(xp, yp, 3, LColor::eolmarker);
469 void LyXText::drawInset(DrawRowParams & p, pos_type const pos)
471 Inset * inset = p.row->par()->getInset(pos);
473 // FIXME: shouldn't happen
478 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
480 inset->update(p.bv, font, false);
481 inset->draw(p.bv, font, p.yo + p.row->baseline(), p.x, p.cleared);
483 if (!need_break_row && !inset_owner
484 && p.bv->text->status() == CHANGED_IN_DRAW) {
485 Row * prev = p.row->previous();
486 if (prev && prev->par() == p.row->par()) {
487 breakAgainOneRow(p.bv, prev);
489 setCursor(p.bv, cursor.par(), cursor.pos());
490 need_break_row = p.row;
495 void LyXText::drawForeignMark(DrawRowParams & p, float const orig_x, LyXFont const & orig_font)
497 if (!lyxrc.mark_foreign_language)
499 if (orig_font.language() == latex_language)
501 if (orig_font.language() == p.bv->buffer()->params.language)
504 int const y = p.yo + p.row->height() - 1;
505 p.pain->line(int(orig_x), y, int(p.x), y, LColor::language);
509 void LyXText::drawHebrewComposeChar(DrawRowParams & p, pos_type & vpos)
511 pos_type pos = vis2log(vpos);
516 char c = p.row->par()->getChar(pos);
520 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
521 int const width = lyxfont::width(c, font);
524 for (pos_type i = pos-1; i >= 0; --i) {
525 c = p.row->par()->getChar(i);
526 if (!Encodings::IsComposeChar_hebrew(c)) {
527 if (IsPrintableNonspace(c)) {
529 singleWidth(p.bv, p.row->par(), i, c);
531 dx = (c == 'ø' || c == 'ã')
533 : (width2 - width) / 2;
540 p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font);
544 void LyXText::drawArabicComposeChar(DrawRowParams & p, pos_type & vpos)
546 pos_type pos = vis2log(vpos);
550 char c = p.row->par()->getChar(pos);
551 c = transformChar(c, p.row->par(), pos);
555 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
556 int const width = lyxfont::width(c, font);
559 for (pos_type i = pos-1; i >= 0; --i) {
560 c = p.row->par()->getChar(i);
561 if (!Encodings::IsComposeChar_arabic(c)) {
562 if (IsPrintableNonspace(c)) {
564 singleWidth(p.bv, p.row->par(), i, c);
565 dx = (width2 - width) / 2;
571 p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font);
575 void LyXText::drawChars(DrawRowParams & p, pos_type & vpos,
576 bool hebrew, bool arabic)
578 pos_type pos = vis2log(vpos);
579 pos_type const last = rowLastPrintable(p.row);
580 LyXFont const & orig_font = getFont(p.bv->buffer(), p.row->par(), pos);
584 str += p.row->par()->getChar(pos);
586 unsigned char c = str[0];
587 str[0] = transformChar(c, p.row->par(), pos);
591 // collect as much similar chars as we can
592 while (vpos <= last && (pos = vis2log(vpos)) >= 0) {
593 char c = p.row->par()->getChar(pos);
595 if (!IsPrintableNonspace(c))
598 if (arabic && Encodings::IsComposeChar_arabic(c))
600 if (hebrew && Encodings::IsComposeChar_hebrew(c))
603 if (orig_font != getFont(p.bv->buffer(), p.row->par(), pos))
610 // Draw text and set the new x position
611 p.pain->text(int(p.x), p.yo + p.row->baseline(), str, orig_font);
612 p.x += lyxfont::width(str, orig_font);
616 void LyXText::draw(DrawRowParams & p, pos_type & vpos)
618 pos_type const pos = vis2log(vpos);
619 Paragraph * par = p.row->par();
621 LyXFont const & orig_font = getFont(p.bv->buffer(), par, pos);
623 float const orig_x = p.x;
625 char const c = par->getChar(pos);
627 if (IsNewlineChar(c)) {
631 } else if (IsInsetChar(c)) {
634 drawForeignMark(p, orig_x, orig_font);
638 // usual characters, no insets
640 // special case languages
641 bool const hebrew = (orig_font.language()->lang() == "hebrew");
643 orig_font.language()->lang() == "arabic" &&
644 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
645 lyxrc.font_norm_type == LyXRC::ISO_10646_1);
647 // draw as many chars as we can
648 if ((!hebrew && !arabic)
649 || (hebrew && !Encodings::IsComposeChar_hebrew(c))
650 || (arabic && !Encodings::IsComposeChar_arabic(c))) {
651 drawChars(p, vpos, true, false);
653 drawHebrewComposeChar(p, vpos);
655 drawArabicComposeChar(p, vpos);
658 drawForeignMark(p, orig_x, orig_font);
660 #ifdef INHERIT_LANGUAGE
662 if ((font.language() == inherit_language) ||
663 (font.language() == ignore_language))
664 lyxerr << "No this shouldn't happen!\n";
670 // Returns the left beginning of the text.
671 // This information cannot be taken from the layouts-objekt, because in
672 // LaTeX the beginning of the text fits in some cases (for example sections)
673 // exactly the label-width.
674 int LyXText::leftMargin(BufferView * bview, Row const * row) const
676 LyXTextClass const & tclass =
677 textclasslist.TextClass(bview->buffer()->params.textclass);
678 LyXLayout const & layout = tclass[row->par()->getLayout()];
680 string parindent = layout.parindent;
682 int x = LYX_PAPER_MARGIN;
684 x += lyxfont::signedWidth(tclass.leftmargin(), tclass.defaultfont());
686 // this is the way, LyX handles the LaTeX-Environments.
687 // I have had this idea very late, so it seems to be a
688 // later added hack and this is true
689 if (!row->par()->getDepth()) {
690 if (!row->par()->getLayout()) {
691 // find the previous same level paragraph
692 if (row->par()->previous()) {
693 Paragraph * newpar = row->par()
694 ->depthHook(row->par()->getDepth());
696 tclass[newpar->getLayout()].nextnoindent)
701 // find the next level paragraph
704 row->par()->outerHook();
706 // make a corresponding row. Needed to call LeftMargin()
708 // check wether it is a sufficent paragraph
709 if (newpar && tclass[newpar->getLayout()].isEnvironment())
712 dummyrow.par(newpar);
713 dummyrow.pos(newpar->size());
714 x = leftMargin(bview, &dummyrow);
716 // this is no longer an error, because this function
717 // is used to clear impossible depths after changing
718 // a layout. Since there is always a redo,
719 // LeftMargin() is always called
720 row->par()->params().depth(0);
723 if (newpar && !row->par()->getLayout()) {
724 if (newpar->params().noindent())
727 parindent = tclass[newpar->getLayout()].parindent;
732 LyXFont const labelfont = getLabelFont(bview->buffer(), row->par());
733 switch (layout.margintype) {
735 if (!layout.leftmargin.empty()) {
736 x += lyxfont::signedWidth(layout.leftmargin,
737 tclass.defaultfont());
739 if (!row->par()->getLabelstring().empty()) {
740 x += lyxfont::signedWidth(layout.labelindent,
742 x += lyxfont::width(row->par()->getLabelstring(),
744 x += lyxfont::width(layout.labelsep, labelfont);
748 x += lyxfont::signedWidth(layout.labelindent, labelfont);
749 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
750 if (!row->par()->getLabelWidthString().empty()) {
751 x += lyxfont::width(row->par()->getLabelWidthString(),
753 x += lyxfont::width(layout.labelsep, labelfont);
758 x += lyxfont::signedWidth(layout.leftmargin, tclass.defaultfont()) * 4
759 / (row->par()->getDepth() + 4);
761 case MARGIN_FIRST_DYNAMIC:
762 if (layout.labeltype == LABEL_MANUAL) {
763 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
764 x += lyxfont::signedWidth(layout.leftmargin,
767 x += lyxfont::signedWidth(layout.labelindent,
770 } else if (row->pos()
771 // Special case to fix problems with
773 || (layout.labeltype == LABEL_STATIC
774 && layout.latextype == LATEX_ENVIRONMENT
775 && ! row->par()->isFirstInSequence())) {
776 x += lyxfont::signedWidth(layout.leftmargin,
778 } else if (layout.labeltype != LABEL_TOP_ENVIRONMENT
779 && layout.labeltype != LABEL_BIBLIO
780 && layout.labeltype !=
781 LABEL_CENTERED_TOP_ENVIRONMENT) {
782 x += lyxfont::signedWidth(layout.labelindent,
784 x += lyxfont::width(layout.labelsep, labelfont);
785 x += lyxfont::width(row->par()->getLabelstring(),
790 case MARGIN_RIGHT_ADDRESS_BOX:
792 // ok, a terrible hack. The left margin depends on the widest
793 // row in this paragraph. Do not care about footnotes, they
794 // are *NOT* allowed in the LaTeX realisation of this layout.
796 // find the first row of this paragraph
797 Row const * tmprow = row;
798 while (tmprow->previous()
799 && tmprow->previous()->par() == row->par())
800 tmprow = tmprow->previous();
802 int minfill = tmprow->fill();
803 while (tmprow->next() && tmprow->next()->par() == row->par()) {
804 tmprow = tmprow->next();
805 if (tmprow->fill() < minfill)
806 minfill = tmprow->fill();
809 x += lyxfont::signedWidth(layout.leftmargin,
810 tclass.defaultfont());
816 LyXAlignment align; // wrong type
818 if (row->par()->params().align() == LYX_ALIGN_LAYOUT)
819 align = layout.align;
821 align = row->par()->params().align();
823 // set the correct parindent
824 if (row->pos() == 0) {
825 if ((layout.labeltype == LABEL_NO_LABEL
826 || layout.labeltype == LABEL_TOP_ENVIRONMENT
827 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
828 || (layout.labeltype == LABEL_STATIC
829 && layout.latextype == LATEX_ENVIRONMENT
830 && ! row->par()->isFirstInSequence()))
831 && align == LYX_ALIGN_BLOCK
832 && !row->par()->params().noindent()
833 && (row->par()->layout ||
834 bview->buffer()->params.paragraph_separation ==
835 BufferParams::PARSEP_INDENT))
836 x += lyxfont::signedWidth(parindent,
837 tclass.defaultfont());
838 else if (layout.labeltype == LABEL_BIBLIO) {
839 // ale970405 Right width for bibitems
840 x += bibitemMaxWidth(bview, tclass.defaultfont());
847 int LyXText::rightMargin(Buffer const * buf, Row const * row) const
849 LyXTextClass const & tclass =
850 textclasslist.TextClass(buf->params.textclass);
851 LyXLayout const & layout = tclass[row->par()->getLayout()];
853 int x = LYX_PAPER_MARGIN
854 + lyxfont::signedWidth(tclass.rightmargin(),
855 tclass.defaultfont());
857 // this is the way, LyX handles the LaTeX-Environments.
858 // I have had this idea very late, so it seems to be a
859 // later added hack and this is true
860 if (row->par()->getDepth()) {
861 // find the next level paragraph
863 Paragraph * newpar = row->par();
866 newpar = newpar->previous();
868 && newpar->getDepth() >= row->par()->getDepth());
870 // make a corresponding row. Needed to call LeftMargin()
872 // check wether it is a sufficent paragraph
874 && tclass[newpar->getLayout()].isEnvironment()) {
876 dummyrow.par(newpar);
878 x = rightMargin(buf, &dummyrow);
880 // this is no longer an error, because this function
881 // is used to clear impossible depths after changing
882 // a layout. Since there is always a redo,
883 // LeftMargin() is always called
884 row->par()->params().depth(0);
888 //lyxerr << "rightmargin: " << layout->rightmargin << endl;
889 x += lyxfont::signedWidth(layout.rightmargin, tclass.defaultfont())
890 * 4 / (row->par()->getDepth() + 4);
895 int LyXText::labelEnd(BufferView * bview, Row const * row) const
897 if (textclasslist.Style(bview->buffer()->params.textclass,
898 row->par()->getLayout()).margintype
902 tmprow.pos(row->par()->size());
903 return leftMargin(bview, &tmprow); /* just the beginning
906 return 0; /* LabelEnd is only needed, if the
907 layout fills a flushleft
912 // get the next breakpoint in a given paragraph
914 LyXText::nextBreakPoint(BufferView * bview, Row const * row, int width) const
916 Paragraph * par = row->par();
921 pos_type const pos = row->pos();
923 // position of the last possible breakpoint
924 // -1 isn't a suitable value, but a flag
925 pos_type last_separator = -1;
926 width -= rightMargin(bview->buffer(), row);
928 pos_type const main_body =
929 beginningOfMainBody(bview->buffer(), par);
930 LyXLayout const & layout =
931 textclasslist.Style(bview->buffer()->params.textclass,
935 if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
936 /* special code for right address boxes, only newlines count */
937 while (i < par->size()) {
938 if (par->isNewline(i)) {
940 i = par->size() - 1; // this means break
942 } else if (par->isInset(i) && par->getInset(i)
943 && par->getInset(i)->display()) {
944 par->getInset(i)->display(false);
949 // Last position is an invariant
950 pos_type const last =
952 // this is the usual handling
953 int x = leftMargin(bview, row);
954 bool doitonetime = true;
955 while (doitonetime || ((x < width) && (i < last))) {
957 char const c = par->getChar(i);
958 if (IsNewlineChar(c)) {
960 x = width; // this means break
961 } else if (c == Paragraph::META_INSET &&
964 // check wether a Display() inset is
965 // valid here. if not, change it to
967 if (par->getInset(i)->display() &&
968 (layout.isCommand() ||
969 (layout.labeltype == LABEL_MANUAL
970 && i < beginningOfMainBody(bview->buffer(), par))))
972 // display istn't allowd
973 par->getInset(i)->display(false);
974 x += singleWidth(bview, par, i, c);
975 } else if (par->getInset(i)->display() ||
976 par->getInset(i)->needFullRow())
978 // So break the line here
982 if (IsLineSeparatorChar(par->getChar(i+1)))
985 last_separator = last; // to avoid extra rows
987 last_separator = i - 1;
988 x = width; // this means break
990 x += singleWidth(bview, par, i, c);
991 // we have to check this separately as we could have a
992 // lineseparator and then the algorithm below would prefer
993 // that which IS wrong! We should always break on an inset
994 // if it's too long and not on the last separator.
995 // Maybe the only exeption is insets used as chars but
996 // then we would have to have a special function inside
997 // the inset to tell us this. Till then we leave it as
998 // it is now. (Jug 20020106)
999 if (pos < i && x >= width && last_separator >= 0)
1000 last_separator = i - 1;
1003 if (IsLineSeparatorChar(c))
1005 x += singleWidth(bview, par, i, c);
1008 if (i == main_body) {
1009 x += lyxfont::width(layout.labelsep,
1010 getLabelFont(bview->buffer(), par));
1011 if (par->isLineSeparator(i - 1))
1012 x-= singleWidth(bview, par, i - 1);
1013 int left_margin = labelEnd(bview, row);
1014 if (x < left_margin)
1018 if ((pos+1 < i) && (last_separator < 0) && (x >= width))
1019 last_separator = i - 2;
1020 else if ((pos < i) && (last_separator < 0) && (x >= width))
1021 last_separator = i - 1;
1022 // end of paragraph is always a suitable separator
1023 else if (i == last && x < width)
1027 // well, if last_separator is still 0, the line isn't breakable.
1028 // don't care and cut simply at the end
1029 if (last_separator < 0) {
1033 // manual labels cannot be broken in LaTeX, do not care
1034 if (main_body && last_separator < main_body)
1035 last_separator = main_body - 1;
1037 return last_separator;
1041 // returns the minimum space a row needs on the screen in pixel
1042 int LyXText::fill(BufferView * bview, Row * row, int paper_width) const
1044 if (paper_width < 0)
1048 // get the pure distance
1049 pos_type const last = rowLastPrintable(row);
1051 // special handling of the right address boxes
1052 if (textclasslist.Style(bview->buffer()->params.textclass,
1053 row->par()->getLayout()).margintype
1054 == MARGIN_RIGHT_ADDRESS_BOX)
1056 int const tmpfill = row->fill();
1057 row->fill(0); // the minfill in MarginLeft()
1058 w = leftMargin(bview, row);
1061 w = leftMargin(bview, row);
1063 LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
1064 row->par()->getLayout());
1065 pos_type const main_body =
1066 beginningOfMainBody(bview->buffer(), row->par());
1067 pos_type i = row->pos();
1070 if (main_body > 0 && i == main_body) {
1071 w += lyxfont::width(layout.labelsep, getLabelFont(bview->buffer(), row->par()));
1072 if (row->par()->isLineSeparator(i - 1))
1073 w -= singleWidth(bview, row->par(), i - 1);
1074 int left_margin = labelEnd(bview, row);
1075 if (w < left_margin)
1078 w += singleWidth(bview, row->par(), i);
1081 if (main_body > 0 && main_body > last) {
1082 w += lyxfont::width(layout.labelsep, getLabelFont(bview->buffer(), row->par()));
1083 if (last >= 0 && row->par()->isLineSeparator(last))
1084 w -= singleWidth(bview, row->par(), last);
1085 int const left_margin = labelEnd(bview, row);
1086 if (w < left_margin)
1090 int const fill = paper_width - w - rightMargin(bview->buffer(), row);
1095 // returns the minimum space a manual label needs on the screen in pixel
1096 int LyXText::labelFill(BufferView * bview, Row const * row) const
1098 pos_type last = beginningOfMainBody(bview->buffer(), row->par()) - 1;
1099 // -1 because a label ends either with a space that is in the label,
1100 // or with the beginning of a footnote that is outside the label.
1102 // I don't understand this code in depth, but sometimes "last" is
1103 // less than 0 and this causes a crash. This fix seems to work
1104 // correctly, but I bet the real error is elsewhere. The bug is
1105 // triggered when you have an open footnote in a paragraph
1106 // environment with a manual label. (Asger)
1107 if (last < 0) last = 0;
1109 if (row->par()->isLineSeparator(last)) /* a sepearator at this end
1114 pos_type i = row->pos();
1116 w += singleWidth(bview, row->par(), i);
1121 if (!row->par()->params().labelWidthString().empty()) {
1122 fill = max(lyxfont::width(row->par()->params().labelWidthString(),
1123 getLabelFont(bview->buffer(), row->par())) - w,
1131 // returns the number of separators in the specified row. The separator
1132 // on the very last column doesnt count
1133 int LyXText::numberOfSeparators(Buffer const * buf, Row const * row) const
1135 pos_type const last = rowLast(row);
1136 pos_type p = max(row->pos(), beginningOfMainBody(buf, row->par()));
1138 for (; p < last; ++p) {
1139 if (row->par()->isSeparator(p)) {
1147 // returns the number of hfills in the specified row. The LyX-Hfill is
1148 // a LaTeX \hfill so that the hfills at the beginning and at the end were
1149 // ignored. This is *MUCH* more usefull than not to ignore!
1150 int LyXText::numberOfHfills(Buffer const * buf, Row const * row) const
1152 pos_type const last = rowLast(row);
1153 pos_type first = row->pos();
1155 if (first) { /* hfill *DO* count at the beginning
1157 while (first <= last && row->par()->isHfill(first)) {
1162 first = max(first, beginningOfMainBody(buf, row->par()));
1164 for (pos_type p = first; p <= last; ++p) {
1165 // last, because the end is ignored!
1167 if (row->par()->isHfill(p)) {
1175 // like NumberOfHfills, but only those in the manual label!
1176 int LyXText::numberOfLabelHfills(Buffer const * buf, Row const * row) const
1178 pos_type last = rowLast(row);
1179 pos_type first = row->pos();
1180 if (first) { /* hfill *DO* count at the beginning
1182 while (first < last && row->par()->isHfill(first))
1186 last = min(last, beginningOfMainBody(buf, row->par()));
1188 for (pos_type p = first; p < last; ++p) {
1189 // last, because the end is ignored!
1190 if (row->par()->isHfill(p)) {
1198 // returns true, if a expansion is needed.
1199 // Rules are given by LaTeX
1200 bool LyXText::hfillExpansion(Buffer const * buf, Row const * row_ptr,
1203 // by the way, is it a hfill?
1204 if (!row_ptr->par()->isHfill(pos))
1207 // at the end of a row it does not count
1208 // unless another hfill exists on the line
1209 if (pos >= rowLast(row_ptr)) {
1210 pos_type i = row_ptr->pos();
1211 while (i < pos && !row_ptr->par()->isHfill(i)) {
1219 // at the beginning of a row it does not count, if it is not
1220 // the first row of a paragaph
1221 if (!row_ptr->pos())
1224 // in some labels it does not count
1225 if (textclasslist.Style(buf->params.textclass,
1226 row_ptr->par()->getLayout()).margintype
1228 && pos < beginningOfMainBody(buf, row_ptr->par()))
1231 // if there is anything between the first char of the row and
1232 // the sepcified position that is not a newline and not a hfill,
1233 // the hfill will count, otherwise not
1234 pos_type i = row_ptr->pos();
1235 while (i < pos && (row_ptr->par()->isNewline(i)
1236 || row_ptr->par()->isHfill(i)))
1243 LColor::color LyXText::backgroundColor()
1246 return inset_owner->backgroundColor();
1248 return LColor::background;
1251 void LyXText::setHeightOfRow(BufferView * bview, Row * row_ptr) const
1253 /* get the maximum ascent and the maximum descent */
1256 float layoutasc = 0;
1257 float layoutdesc = 0;
1260 Inset * tmpinset = 0;
1262 /* ok , let us initialize the maxasc and maxdesc value.
1263 * This depends in LaTeX of the font of the last character
1264 * in the paragraph. The hack below is necessary because
1265 * of the possibility of open footnotes */
1267 /* Correction: only the fontsize count. The other properties
1268 are taken from the layoutfont. Nicer on the screen :) */
1269 Paragraph * par = row_ptr->par();
1270 Paragraph * firstpar = row_ptr->par();
1272 LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
1273 firstpar->getLayout());
1275 // as max get the first character of this row then it can increes but not
1276 // decrees the height. Just some point to start with so we don't have to
1277 // do the assignment below too often.
1278 LyXFont font = getFont(bview->buffer(), par, row_ptr->pos());
1279 LyXFont::FONT_SIZE const tmpsize = font.size();
1280 font = getLayoutFont(bview->buffer(), par);
1281 LyXFont::FONT_SIZE const size = font.size();
1282 font.setSize(tmpsize);
1284 LyXFont labelfont = getLabelFont(bview->buffer(), par);
1286 float spacing_val = 1.0;
1287 if (!row_ptr->par()->params().spacing().isDefault()) {
1288 spacing_val = row_ptr->par()->params().spacing().getValue();
1290 spacing_val = bview->buffer()->params.spacing.getValue();
1292 //lyxerr << "spacing_val = " << spacing_val << endl;
1294 int maxasc = int(lyxfont::maxAscent(font) *
1295 layout.spacing.getValue() *
1297 int maxdesc = int(lyxfont::maxDescent(font) *
1298 layout.spacing.getValue() *
1300 pos_type const pos_end = rowLast(row_ptr);
1304 // Check if any insets are larger
1305 for (pos_type pos = row_ptr->pos(); pos <= pos_end; ++pos) {
1306 if (row_ptr->par()->isInset(pos)) {
1307 tmpfont = getFont(bview->buffer(), row_ptr->par(), pos);
1308 tmpinset = row_ptr->par()->getInset(pos);
1310 #if 1 // this is needed for deep update on initialitation
1311 tmpinset->update(bview, tmpfont);
1313 asc = tmpinset->ascent(bview, tmpfont);
1314 desc = tmpinset->descent(bview, tmpfont);
1315 maxwidth += tmpinset->width(bview, tmpfont);
1316 maxasc = max(maxasc, asc);
1317 maxdesc = max(maxdesc, desc);
1320 maxwidth += singleWidth(bview, row_ptr->par(), pos);
1324 // Check if any custom fonts are larger (Asger)
1325 // This is not completely correct, but we can live with the small,
1326 // cosmetic error for now.
1327 LyXFont::FONT_SIZE maxsize =
1328 row_ptr->par()->highestFontInRange(row_ptr->pos(), pos_end, size);
1329 if (maxsize > font.size()) {
1330 font.setSize(maxsize);
1332 asc = lyxfont::maxAscent(font);
1333 desc = lyxfont::maxDescent(font);
1340 // This is nicer with box insets:
1344 row_ptr->ascent_of_text(maxasc);
1346 // is it a top line?
1347 if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
1349 // some parksips VERY EASY IMPLEMENTATION
1350 if (bview->buffer()->params.paragraph_separation ==
1351 BufferParams::PARSEP_SKIP)
1353 if (layout.isParagraph()
1354 && firstpar->getDepth() == 0
1355 && firstpar->previous())
1357 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1358 } else if (firstpar->previous() &&
1359 textclasslist.Style(bview->buffer()->params.textclass,
1360 firstpar->previous()->
1361 getLayout()).isParagraph() &&
1362 firstpar->previous()->getDepth() == 0)
1364 // is it right to use defskip here too? (AS)
1365 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1369 // the paper margins
1370 if (!row_ptr->par()->previous() && bv_owner)
1371 maxasc += LYX_PAPER_MARGIN;
1373 // add the vertical spaces, that the user added
1374 maxasc += getLengthMarkerHeight(bview, firstpar->params().spaceTop());
1376 // do not forget the DTP-lines!
1377 // there height depends on the font of the nearest character
1378 if (firstpar->params().lineTop())
1379 maxasc += 2 * lyxfont::ascent('x', getFont(bview->buffer(),
1382 // and now the pagebreaks
1383 if (firstpar->params().pagebreakTop())
1384 maxasc += 3 * defaultHeight();
1386 // This is special code for the chapter, since the label of this
1387 // layout is printed in an extra row
1388 if (layout.labeltype == LABEL_COUNTER_CHAPTER
1389 && bview->buffer()->params.secnumdepth >= 0)
1391 float spacing_val = 1.0;
1392 if (!row_ptr->par()->params().spacing().isDefault()) {
1393 spacing_val = row_ptr->par()->params().spacing().getValue();
1395 spacing_val = bview->buffer()->params.spacing.getValue();
1398 labeladdon = int(lyxfont::maxDescent(labelfont) *
1399 layout.spacing.getValue() *
1401 + int(lyxfont::maxAscent(labelfont) *
1402 layout.spacing.getValue() *
1406 // special code for the top label
1407 if ((layout.labeltype == LABEL_TOP_ENVIRONMENT
1408 || layout.labeltype == LABEL_BIBLIO
1409 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1410 && row_ptr->par()->isFirstInSequence()
1411 && !row_ptr->par()->getLabelstring().empty())
1413 float spacing_val = 1.0;
1414 if (!row_ptr->par()->params().spacing().isDefault()) {
1415 spacing_val = row_ptr->par()->params().spacing().getValue();
1417 spacing_val = bview->buffer()->params.spacing.getValue();
1421 (lyxfont::maxAscent(labelfont) *
1422 layout.spacing.getValue() *
1424 +(lyxfont::maxDescent(labelfont) *
1425 layout.spacing.getValue() *
1427 + layout.topsep * defaultHeight()
1428 + layout.labelbottomsep * defaultHeight());
1431 // and now the layout spaces, for example before and after a section,
1432 // or between the items of a itemize or enumerate environment
1434 if (!firstpar->params().pagebreakTop()) {
1435 Paragraph * prev = row_ptr->par()->previous();
1437 prev = row_ptr->par()->depthHook(row_ptr->par()->getDepth());
1438 if (prev && prev->getLayout() == firstpar->getLayout() &&
1439 prev->getDepth() == firstpar->getDepth() &&
1440 prev->getLabelWidthString() == firstpar->getLabelWidthString())
1442 layoutasc = (layout.itemsep * defaultHeight());
1443 } else if (row_ptr->previous()) {
1444 tmptop = layout.topsep;
1446 if (row_ptr->previous()->par()->getDepth() >= row_ptr->par()->getDepth())
1447 tmptop -= textclasslist.Style(bview->buffer()->params.textclass,
1448 row_ptr->previous()->par()->
1449 getLayout()).bottomsep;
1452 layoutasc = (tmptop * defaultHeight());
1453 } else if (row_ptr->par()->params().lineTop()) {
1454 tmptop = layout.topsep;
1457 layoutasc = (tmptop * defaultHeight());
1460 prev = row_ptr->par()->outerHook();
1462 maxasc += int(textclasslist.Style(bview->buffer()->params.textclass,
1463 prev->getLayout()).parsep * defaultHeight());
1465 if (firstpar->previous() &&
1466 firstpar->previous()->getDepth() == 0 &&
1467 firstpar->previous()->getLayout() !=
1468 firstpar->getLayout())
1471 } else if (firstpar->previous()) {
1472 maxasc += int(layout.parsep * defaultHeight());
1478 // is it a bottom line?
1479 if (row_ptr->par() == par
1480 && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par()))
1482 // the paper margins
1483 if (!par->next() && bv_owner)
1484 maxdesc += LYX_PAPER_MARGIN;
1486 // add the vertical spaces, that the user added
1487 maxdesc += getLengthMarkerHeight(bview, firstpar->params().spaceBottom());
1489 // do not forget the DTP-lines!
1490 // there height depends on the font of the nearest character
1491 if (firstpar->params().lineBottom())
1492 maxdesc += 2 * lyxfont::ascent('x',
1493 getFont(bview->buffer(),
1495 max(pos_type(0), par->size() - 1)));
1497 // and now the pagebreaks
1498 if (firstpar->params().pagebreakBottom())
1499 maxdesc += 3 * defaultHeight();
1501 // and now the layout spaces, for example before and after
1502 // a section, or between the items of a itemize or enumerate
1504 if (!firstpar->params().pagebreakBottom()
1505 && row_ptr->par()->next()) {
1506 Paragraph * nextpar = row_ptr->par()->next();
1507 Paragraph * comparepar = row_ptr->par();
1511 if (comparepar->getDepth() > nextpar->getDepth()) {
1512 usual = (textclasslist.Style(bview->buffer()->params.textclass,
1513 comparepar->getLayout()).bottomsep * defaultHeight());
1514 comparepar = comparepar->depthHook(nextpar->getDepth());
1515 if (comparepar->getLayout()!= nextpar->getLayout()
1516 || nextpar->getLabelWidthString() !=
1517 comparepar->getLabelWidthString())
1519 unusual = (textclasslist.Style(bview->buffer()->params.textclass,
1520 comparepar->getLayout()).bottomsep * defaultHeight());
1522 if (unusual > usual)
1523 layoutdesc = unusual;
1526 } else if (comparepar->getDepth() == nextpar->getDepth()) {
1528 if (comparepar->getLayout()!= nextpar->getLayout()
1529 || nextpar->getLabelWidthString() !=
1530 comparepar->getLabelWidthString())
1531 layoutdesc = int(textclasslist.Style(bview->buffer()->params.textclass,
1532 comparepar->getLayout()).bottomsep * defaultHeight());
1537 // incalculate the layout spaces
1538 maxasc += int(layoutasc * 2 / (2 + firstpar->getDepth()));
1539 maxdesc += int(layoutdesc * 2 / (2 + firstpar->getDepth()));
1541 // calculate the new height of the text
1542 height -= row_ptr->height();
1544 row_ptr->height(maxasc + maxdesc + labeladdon);
1545 row_ptr->baseline(maxasc + labeladdon);
1547 height += row_ptr->height();
1549 if (layout.margintype != MARGIN_RIGHT_ADDRESS_BOX) {
1552 row_ptr->width(maxwidth);
1553 prepareToPrint(bview, row_ptr, x, dummy, dummy, dummy, false);
1555 row_ptr->width(int(maxwidth + x));
1558 width = max(0,workWidth(bview));
1560 if (r->width() > width)
1568 /* Appends the implicit specified paragraph behind the specified row,
1569 * start at the implicit given position */
1570 void LyXText::appendParagraph(BufferView * bview, Row * row) const
1572 bool not_ready = true;
1574 // The last character position of a paragraph is an invariant so we can
1575 // safely get it here. (Asger)
1576 pos_type const lastposition = row->par()->size();
1578 // Get the next breakpoint
1579 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1583 // Insert the new row
1584 if (z < lastposition) {
1586 insertRow(row, row->par(), z);
1593 // Set the dimensions of the row
1594 // fixed fill setting now by calling inset->update() in
1595 // SingleWidth when needed!
1596 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1597 setHeightOfRow(bview, tmprow);
1599 } while (not_ready);
1603 void LyXText::breakAgain(BufferView * bview, Row * row) const
1605 bool not_ready = true;
1608 // get the next breakpoint
1609 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1612 if (z < row->par()->size()) {
1613 if (!row->next() || (row->next() && row->next()->par() != row->par())) {
1616 insertRow(row, row->par(), z);
1622 if (row->pos() == z)
1623 not_ready = false; // the rest will not change
1629 /* if there are some rows too much, delete them */
1630 /* only if you broke the whole paragraph! */
1631 Row * tmprow2 = row;
1632 while (tmprow2->next() && tmprow2->next()->par() == row->par()) {
1633 tmprow2 = tmprow2->next();
1635 while (tmprow2 != row) {
1636 tmprow2 = tmprow2->previous();
1637 removeRow(tmprow2->next());
1642 /* set the dimensions of the row */
1643 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1644 setHeightOfRow(bview, tmprow);
1645 } while (not_ready);
1649 // this is just a little changed version of break again
1650 void LyXText::breakAgainOneRow(BufferView * bview, Row * row)
1652 // get the next breakpoint
1653 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1656 if (z < row->par()->size()) {
1658 || (row->next() && row->next()->par() != row->par())) {
1659 /* insert a new row */
1661 insertRow(row, row->par(), z);
1667 if (row->pos() != z)
1671 // if there are some rows too much, delete them
1672 // only if you broke the whole paragraph!
1673 Row * tmprow2 = row;
1674 while (tmprow2->next()
1675 && tmprow2->next()->par() == row->par()) {
1676 tmprow2 = tmprow2->next();
1678 while (tmprow2 != row) {
1679 tmprow2 = tmprow2->previous();
1680 removeRow(tmprow2->next());
1684 // set the dimensions of the row
1685 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1686 setHeightOfRow(bview, tmprow);
1690 void LyXText::breakParagraph(BufferView * bview, char keep_layout)
1692 LyXLayout const & layout =
1693 textclasslist.Style(bview->buffer()->params.textclass,
1694 cursor.par()->getLayout());
1696 // this is only allowed, if the current paragraph is not empty or caption
1697 if ((cursor.par()->size() <= 0)
1698 && layout.labeltype!= LABEL_SENSITIVE)
1701 setUndo(bview, Undo::INSERT,cursor.par(),cursor.par()->next());
1703 // Always break behind a space
1705 // It is better to erase the space (Dekel)
1706 if (cursor.pos() < cursor.par()->size()
1707 && cursor.par()->isLineSeparator(cursor.pos()))
1708 cursor.par()->erase(cursor.pos());
1709 // cursor.pos(cursor.pos() + 1);
1711 // break the paragraph
1715 keep_layout = layout.isEnvironment();
1716 cursor.par()->breakParagraph(bview->buffer()->params, cursor.pos(),
1719 // well this is the caption hack since one caption is really enough
1720 if (layout.labeltype == LABEL_SENSITIVE) {
1722 // set to standard-layout
1723 cursor.par()->setLayout(0);
1725 // set to standard-layout
1726 cursor.par()->next()->setLayout(0);
1729 /* if the cursor is at the beginning of a row without prior newline,
1731 * This touches only the screen-update. Otherwise we would may have
1732 * an empty row on the screen */
1733 if (cursor.pos() && !cursor.row()->par()->isNewline(cursor.row()->pos() - 1)
1734 && cursor.row()->pos() == cursor.pos()) {
1738 status(bview, LyXText::NEED_MORE_REFRESH);
1739 refresh_row = cursor.row();
1740 refresh_y = cursor.y() - cursor.row()->baseline();
1742 // Do not forget the special right address boxes
1743 if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1744 while (refresh_row->previous() &&
1745 refresh_row->previous()->par() == refresh_row->par()) {
1746 refresh_row = refresh_row->previous();
1747 refresh_y -= refresh_row->height();
1750 removeParagraph(cursor.row());
1752 // set the dimensions of the cursor row
1753 cursor.row()->fill(fill(bview, cursor.row(), workWidth(bview)));
1755 setHeightOfRow(bview, cursor.row());
1757 while (cursor.par()->next()->size()
1758 && cursor.par()->next()->isNewline(0))
1759 cursor.par()->next()->erase(0);
1761 insertParagraph(bview, cursor.par()->next(), cursor.row());
1763 updateCounters(bview, cursor.row()->previous());
1765 /* This check is necessary. Otherwise the new empty paragraph will
1766 * be deleted automatically. And it is more friendly for the user! */
1768 setCursor(bview, cursor.par()->next(), 0);
1770 setCursor(bview, cursor.par(), 0);
1772 if (cursor.row()->next())
1773 breakAgain(bview, cursor.row()->next());
1779 // Just a macro to make some thing easier.
1780 void LyXText::redoParagraph(BufferView * bview) const
1783 redoParagraphs(bview, cursor, cursor.par()->next());
1784 setCursorIntern(bview, cursor.par(), cursor.pos());
1788 /* insert a character, moves all the following breaks in the
1789 * same Paragraph one to the right and make a rebreak */
1790 void LyXText::insertChar(BufferView * bview, char c)
1792 setUndo(bview, Undo::INSERT,
1793 cursor.par(), cursor.par()->next());
1795 // When the free-spacing option is set for the current layout,
1796 // disable the double-space checking
1798 bool const freeSpacing =
1799 textclasslist.Style(bview->buffer()->params.textclass,
1800 cursor.row()->par()->getLayout()).free_spacing ||
1801 cursor.row()->par()->isFreeSpacing();
1804 if (lyxrc.auto_number) {
1805 static string const number_operators = "+-/*";
1806 static string const number_unary_operators = "+-";
1807 static string const number_seperators = ".,:";
1809 if (current_font.number() == LyXFont::ON) {
1810 if (!IsDigit(c) && !contains(number_operators, c) &&
1811 !(contains(number_seperators, c) &&
1812 cursor.pos() >= 1 &&
1813 cursor.pos() < cursor.par()->size() &&
1814 getFont(bview->buffer(),
1816 cursor.pos()).number() == LyXFont::ON &&
1817 getFont(bview->buffer(),
1819 cursor.pos() - 1).number() == LyXFont::ON)
1821 number(bview); // Set current_font.number to OFF
1822 } else if (IsDigit(c) &&
1823 real_current_font.isVisibleRightToLeft()) {
1824 number(bview); // Set current_font.number to ON
1826 if (cursor.pos() > 0) {
1827 char const c = cursor.par()->getChar(cursor.pos() - 1);
1828 if (contains(number_unary_operators, c) &&
1829 (cursor.pos() == 1 ||
1830 cursor.par()->isSeparator(cursor.pos() - 2) ||
1831 cursor.par()->isNewline(cursor.pos() - 2) )
1833 setCharFont(bview->buffer(),
1837 } else if (contains(number_seperators, c) &&
1838 cursor.pos() >= 2 &&
1839 getFont(bview->buffer(),
1841 cursor.pos() - 2).number() == LyXFont::ON) {
1842 setCharFont(bview->buffer(),
1852 /* First check, if there will be two blanks together or a blank at
1853 the beginning of a paragraph.
1854 I decided to handle blanks like normal characters, the main
1855 difference are the special checks when calculating the row.fill
1856 (blank does not count at the end of a row) and the check here */
1858 // The bug is triggered when we type in a description environment:
1859 // The current_font is not changed when we go from label to main text
1860 // and it should (along with realtmpfont) when we type the space.
1861 // CHECK There is a bug here! (Asger)
1863 LyXFont realtmpfont = real_current_font;
1864 LyXFont rawtmpfont = current_font; /* store the current font.
1865 * This is because of the use
1866 * of cursor movements. The moving
1867 * cursor would refresh the
1870 // Get the font that is used to calculate the baselineskip
1871 pos_type const lastpos = cursor.par()->size();
1872 LyXFont rawparfont =
1873 cursor.par()->getFontSettings(bview->buffer()->params,
1876 bool jumped_over_space = false;
1878 if (!freeSpacing && IsLineSeparatorChar(c)) {
1879 if ((cursor.pos() > 0
1880 && cursor.par()->isLineSeparator(cursor.pos() - 1))
1881 || (cursor.pos() > 0
1882 && cursor.par()->isNewline(cursor.pos() - 1))
1883 || (cursor.pos() == 0)) {
1884 static bool sent_space_message = false;
1885 if (!sent_space_message) {
1886 if (cursor.pos() == 0)
1887 bview->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1889 bview->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1890 sent_space_message = true;
1895 } else if (IsNewlineChar(c)) {
1896 if (cursor.par() == cursor.par()
1897 && cursor.pos() <= beginningOfMainBody(bview->buffer(), cursor.par())) {
1901 /* No newline at first position
1902 * of a paragraph or behind labels.
1903 * TeX does not allow that. */
1905 if (cursor.pos() < cursor.par()->size() &&
1906 cursor.par()->isLineSeparator(cursor.pos()))
1907 // newline always after a blank!
1909 cursor.row()->fill(-1); // to force a new break
1912 // the display inset stuff
1913 if (cursor.row()->par()->isInset(cursor.row()->pos())) {
1914 Inset * inset = cursor.row()->par()->getInset(cursor.row()->pos());
1915 if (inset && (inset->display() || inset->needFullRow())) {
1916 // force a new break
1917 cursor.row()->fill(-1); // to force a new break
1921 // get the cursor row fist
1922 Row * row = cursor.row();
1923 int y = cursor.y() - row->baseline();
1924 if (c != Paragraph::META_INSET) /* Here case LyXText::InsertInset
1925 * already insertet the character */
1926 cursor.par()->insertChar(cursor.pos(), c);
1927 setCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont);
1929 if (!jumped_over_space) {
1930 // refresh the positions
1932 while (tmprow->next() && tmprow->next()->par() == row->par()) {
1933 tmprow = tmprow->next();
1934 tmprow->pos(tmprow->pos() + 1);
1938 // Is there a break one row above
1939 if ((cursor.par()->isLineSeparator(cursor.pos())
1940 || cursor.par()->isNewline(cursor.pos())
1941 || ((cursor.pos() < cursor.par()->size()) &&
1942 cursor.par()->isInset(cursor.pos()+1))
1943 || cursor.row()->fill() == -1)
1944 && row->previous() && row->previous()->par() == row->par()) {
1945 pos_type z = nextBreakPoint(bview,
1948 if (z >= row->pos()) {
1951 // set the dimensions of the row above
1952 row->previous()->fill(fill(bview,
1956 setHeightOfRow(bview, row->previous());
1958 y -= row->previous()->height();
1960 refresh_row = row->previous();
1961 status(bview, LyXText::NEED_MORE_REFRESH);
1963 breakAgainOneRow(bview, row);
1965 current_font = rawtmpfont;
1966 real_current_font = realtmpfont;
1967 setCursor(bview, cursor.par(), cursor.pos() + 1,
1968 false, cursor.boundary());
1969 // cursor MUST be in row now.
1971 if (row->next() && row->next()->par() == row->par())
1972 need_break_row = row->next();
1976 // check, wether the last characters font has changed.
1977 if (cursor.pos() && cursor.pos() == cursor.par()->size()
1978 && rawparfont != rawtmpfont)
1979 redoHeightOfParagraph(bview, cursor);
1986 // recalculate the fill of the row
1987 if (row->fill() >= 0) /* needed because a newline
1988 * will set fill to -1. Otherwise
1989 * we would not get a rebreak! */
1990 row->fill(fill(bview, row, workWidth(bview)));
1991 if (row->fill() < 0) {
1994 refresh_x = cursor.x();
1995 refresh_pos = cursor.pos();
1996 status(bview, LyXText::NEED_MORE_REFRESH);
1997 breakAgainOneRow(bview, row);
1998 // will the cursor be in another row now?
1999 if (rowLast(row) <= cursor.pos() + 1 && row->next()) {
2000 if (row->next() && row->next()->par() == row->par())
2001 // this should always be true
2003 breakAgainOneRow(bview, row);
2005 current_font = rawtmpfont;
2006 real_current_font = realtmpfont;
2008 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2010 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
2011 != cursor.boundary())
2012 setCursor(bview, cursor.par(), cursor.pos(), false,
2013 !cursor.boundary());
2014 if (row->next() && row->next()->par() == row->par())
2015 need_break_row = row->next();
2020 refresh_x = cursor.x();
2022 refresh_pos = cursor.pos();
2024 int const tmpheight = row->height();
2025 setHeightOfRow(bview, row);
2026 if (tmpheight == row->height())
2027 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
2029 status(bview, LyXText::NEED_MORE_REFRESH);
2031 current_font = rawtmpfont;
2032 real_current_font = realtmpfont;
2033 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2037 // check, wether the last characters font has changed.
2038 if (cursor.pos() && cursor.pos() == cursor.par()->size()
2039 && rawparfont != rawtmpfont) {
2040 redoHeightOfParagraph(bview, cursor);
2042 // now the special right address boxes
2043 if (textclasslist.Style(bview->buffer()->params.textclass,
2044 cursor.par()->getLayout()).margintype
2045 == MARGIN_RIGHT_ADDRESS_BOX) {
2046 redoDrawingOfParagraph(bview, cursor);
2054 void LyXText::charInserted()
2056 // Here we could call FinishUndo for every 20 characters inserted.
2057 // This is from my experience how emacs does it.
2058 static unsigned int counter;
2068 void LyXText::prepareToPrint(BufferView * bview,
2069 Row * row, float & x,
2070 float & fill_separator,
2072 float & fill_label_hfill,
2078 float w = row->fill();
2080 fill_label_hfill = 0;
2082 fill_label_hfill = 0;
2085 row->par()->isRightToLeftPar(bview->buffer()->params);
2087 x = (workWidth(bview) > 0)
2088 ? rightMargin(bview->buffer(), row) : 0;
2090 x = (workWidth(bview) > 0) ? leftMargin(bview, row) : 0;
2092 // is there a manual margin with a manual label
2093 if (textclasslist.Style(bview->buffer()->params.textclass,
2094 row->par()->getLayout()).margintype == MARGIN_MANUAL
2095 && textclasslist.Style(bview->buffer()->params.textclass,
2096 row->par()->getLayout()).labeltype == LABEL_MANUAL) {
2098 /* one more since labels are left aligned */
2099 nlh = numberOfLabelHfills(bview->buffer(), row) + 1;
2100 if (nlh && !row->par()->getLabelWidthString().empty()) {
2101 fill_label_hfill = labelFill(bview, row) / nlh;
2105 // are there any hfills in the row?
2106 float const nh = numberOfHfills(bview->buffer(), row);
2110 fill_hfill = w / nh;
2111 // we don't have to look at the alignment if it is ALIGN_LEFT and
2112 // if the row is already larger then the permitted width as then
2113 // we force the LEFT_ALIGN'edness!
2114 } else if (static_cast<int>(row->width()) < workWidth(bview)) {
2115 // is it block, flushleft or flushright?
2116 // set x how you need it
2118 if (row->par()->params().align() == LYX_ALIGN_LAYOUT) {
2119 align = textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()).align;
2121 align = row->par()->params().align();
2124 // center displayed insets
2126 if (row->par()->isInset(row->pos())
2127 && (inset=row->par()->getInset(row->pos()))
2128 && (inset->display())) // || (inset->scroll() < 0)))
2129 align = (inset->lyxCode() == Inset::MATHMACRO_CODE)
2130 ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER;
2133 case LYX_ALIGN_BLOCK:
2134 ns = numberOfSeparators(bview->buffer(), row);
2135 if (ns && row->next() && row->next()->par() == row->par() &&
2136 !(row->next()->par()->isNewline(row->next()->pos() - 1))
2137 && !(row->next()->par()->isInset(row->next()->pos())
2138 && row->next()->par()->getInset(row->next()->pos())
2139 && row->next()->par()->getInset(row->next()->pos())->display())
2142 fill_separator = w / ns;
2143 } else if (is_rtl) {
2147 case LYX_ALIGN_RIGHT:
2150 case LYX_ALIGN_CENTER:
2158 computeBidiTables(bview->buffer(), row);
2160 pos_type main_body =
2161 beginningOfMainBody(bview->buffer(), row->par());
2162 pos_type last = rowLast(row);
2164 if (main_body > 0 &&
2165 (main_body-1 > last ||
2166 !row->par()->isLineSeparator(main_body-1))) {
2167 LyXLayout const & layout =
2168 textclasslist.Style(bview->buffer()->params.textclass,
2169 row->par()->getLayout());
2170 x += lyxfont::width(layout.labelsep,
2171 getLabelFont(bview->buffer(), row->par()));
2172 if (main_body-1 <= last)
2173 x += fill_label_hfill;
2178 /* important for the screen */
2181 /* the cursor set functions have a special mechanism. When they
2182 * realize, that you left an empty paragraph, they will delete it.
2183 * They also delete the corresponding row */
2185 void LyXText::cursorRightOneWord(BufferView * bview) const
2187 // treat floats, HFills and Insets as words
2188 LyXCursor tmpcursor = cursor;
2189 // CHECK See comment on top of text.C
2191 if (tmpcursor.pos() == tmpcursor.par()->size()
2192 && tmpcursor.par()->next()) {
2193 tmpcursor.par(tmpcursor.par()->next());
2198 // Skip through initial nonword stuff.
2199 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2200 ! tmpcursor.par()->isWord(tmpcursor.pos())) {
2201 // printf("Current pos1 %d", tmpcursor.pos()) ;
2202 tmpcursor.pos(tmpcursor.pos() + 1);
2205 // Advance through word.
2206 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2207 tmpcursor.par()->isWord( tmpcursor.pos())) {
2208 // printf("Current pos2 %d", tmpcursor.pos()) ;
2209 tmpcursor.pos(tmpcursor.pos() + 1);
2213 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2217 void LyXText::cursorTab(BufferView * bview) const
2219 LyXCursor tmpcursor = cursor;
2220 while (tmpcursor.pos() < tmpcursor.par()->size()
2221 && !tmpcursor.par()->isNewline(tmpcursor.pos()))
2222 tmpcursor.pos(tmpcursor.pos() + 1);
2224 if (tmpcursor.pos() == tmpcursor.par()->size()){
2225 if (tmpcursor.par()->next()) {
2226 tmpcursor.par(tmpcursor.par()->next());
2230 tmpcursor.pos(tmpcursor.pos() + 1);
2231 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2235 /* -------> Skip initial whitespace at end of word and move cursor to *start*
2236 of prior word, not to end of next prior word. */
2238 void LyXText::cursorLeftOneWord(BufferView * bview) const
2240 LyXCursor tmpcursor = cursor;
2241 cursorLeftOneWord(tmpcursor);
2242 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2245 void LyXText::cursorLeftOneWord(LyXCursor & cur) const
2247 // treat HFills, floats and Insets as words
2250 && (cur.par()->isSeparator(cur.pos() - 1)
2251 || cur.par()->isKomma(cur.pos() - 1))
2252 && !(cur.par()->isHfill(cur.pos() - 1)
2253 || cur.par()->isInset(cur.pos() - 1)))
2254 cur.pos(cur.pos() - 1);
2257 && (cur.par()->isInset(cur.pos() - 1)
2258 || cur.par()->isHfill(cur.pos() - 1))) {
2259 cur.pos(cur.pos() - 1);
2260 } else if (!cur.pos()) {
2261 if (cur.par()->previous()){
2262 cur.par(cur.par()->previous());
2263 cur.pos(cur.par()->size());
2265 } else { // Here, cur != 0
2266 while (cur.pos() > 0 &&
2267 cur.par()->isWord(cur.pos()-1) )
2268 cur.pos(cur.pos() - 1);
2272 /* -------> Select current word. This depends on behaviour of
2273 CursorLeftOneWord(), so it is patched as well. */
2274 void LyXText::getWord(LyXCursor & from, LyXCursor & to,
2275 word_location const loc) const
2277 // first put the cursor where we wana start to select the word
2280 case WHOLE_WORD_STRICT:
2281 if (cursor.pos() == 0 || cursor.pos() == cursor.par()->size()
2282 || cursor.par()->isSeparator(cursor.pos())
2283 || cursor.par()->isKomma(cursor.pos())
2284 || cursor.par()->isSeparator(cursor.pos() -1)
2285 || cursor.par()->isKomma(cursor.pos() -1)) {
2289 // no break here, we go to the next
2292 // Move cursor to the beginning, when not already there.
2293 if (from.pos() && !from.par()->isSeparator(from.pos() - 1)
2294 && !from.par()->isKomma(from.pos() - 1))
2295 cursorLeftOneWord(from);
2298 // always move the cursor to the beginning of previous word
2299 cursorLeftOneWord(from);
2302 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet\n";
2308 while (to.pos() < to.par()->size()
2309 && !to.par()->isSeparator(to.pos())
2310 && !to.par()->isKomma(to.pos())
2311 && !to.par()->isHfill(to.pos()) )
2313 to.pos(to.pos() + 1);
2318 void LyXText::selectWord(BufferView * bview, word_location const loc)
2322 getWord(from, to, loc);
2324 setCursor(bview, from.par(), from.pos());
2327 selection.cursor = cursor;
2328 setCursor(bview, to.par(), to.pos() );
2329 setSelection(bview);
2333 /* -------> Select the word currently under the cursor when no
2334 selection is currently set */
2335 bool LyXText::selectWordWhenUnderCursor(BufferView * bview,
2336 word_location const loc)
2338 if (!selection.set()) {
2339 selectWord(bview, loc);
2340 return selection.set();
2346 // This function is only used by the spellchecker for NextWord().
2347 // It doesn't handle LYX_ACCENTs and probably never will.
2348 string const LyXText::selectNextWordToSpellcheck(BufferView * bview,
2349 float & value) const
2351 if (the_locking_inset) {
2352 string str = the_locking_inset->selectNextWordToSpellcheck(bview, value);
2354 value += float(cursor.y())/float(height);
2357 #warning Dekel please have a look on this one RTL? (Jug)
2359 // we have to go on checking so move cusor to the right
2360 if (cursor.pos() == cursor.par()->size()) {
2361 if (!cursor.par()->next())
2363 cursor.par(cursor.par()->next());
2366 cursor.pos(cursor.pos() + 1);
2368 Paragraph * tmppar = cursor.par();
2370 // If this is not the very first word, skip rest of
2371 // current word because we are probably in the middle
2372 // of a word if there is text here.
2373 if (cursor.pos() || cursor.par()->previous()) {
2374 while (cursor.pos() < cursor.par()->size()
2375 && cursor.par()->isLetter(cursor.pos()))
2376 cursor.pos(cursor.pos() + 1);
2379 // Now, skip until we have real text (will jump paragraphs)
2380 while ((cursor.par()->size() > cursor.pos()
2381 && (!cursor.par()->isLetter(cursor.pos()))
2382 && (!cursor.par()->isInset(cursor.pos()) ||
2383 !cursor.par()->getInset(cursor.pos())->allowSpellcheck()))
2384 || (cursor.par()->size() == cursor.pos()
2385 && cursor.par()->next()))
2387 if (cursor.pos() == cursor.par()->size()) {
2388 cursor.par(cursor.par()->next());
2391 cursor.pos(cursor.pos() + 1);
2394 // now check if we hit an inset so it has to be a inset containing text!
2395 if (cursor.pos() < cursor.par()->size() &&
2396 cursor.par()->isInset(cursor.pos()))
2399 cursor.par()->getInset(cursor.pos())->edit(bview);
2400 // now call us again to do the above trick
2401 // but obviously we have to start from down below ;)
2402 return bview->text->selectNextWordToSpellcheck(bview, value);
2405 // Update the value if we changed paragraphs
2406 if (cursor.par() != tmppar){
2407 setCursor(bview, cursor.par(), cursor.pos());
2408 value = float(cursor.y())/float(height);
2411 // Start the selection from here
2412 selection.cursor = cursor;
2414 // and find the end of the word (insets like optional hyphens
2415 // and ligature break are part of a word)
2416 while (cursor.pos() < cursor.par()->size()
2417 && (cursor.par()->isLetter(cursor.pos())))
2418 cursor.pos(cursor.pos() + 1);
2420 // Finally, we copy the word to a string and return it
2422 if (selection.cursor.pos() < cursor.pos()) {
2424 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
2425 if (!cursor.par()->isInset(i))
2426 str += cursor.par()->getChar(i);
2433 // This one is also only for the spellchecker
2434 void LyXText::selectSelectedWord(BufferView * bview)
2436 if (the_locking_inset) {
2437 the_locking_inset->selectSelectedWord(bview);
2440 // move cursor to the beginning
2441 setCursor(bview, selection.cursor.par(), selection.cursor.pos());
2443 // set the sel cursor
2444 selection.cursor = cursor;
2446 // now find the end of the word
2447 while (cursor.pos() < cursor.par()->size()
2448 && (cursor.par()->isLetter(cursor.pos())))
2449 cursor.pos(cursor.pos() + 1);
2451 setCursor(bview, cursor.par(), cursor.pos());
2453 // finally set the selection
2454 setSelection(bview);
2458 /* -------> Delete from cursor up to the end of the current or next word. */
2459 void LyXText::deleteWordForward(BufferView * bview)
2461 if (!cursor.par()->size())
2464 LyXCursor tmpcursor = cursor;
2465 tmpcursor.row(0); //Â ??
2466 selection.set(true); // to avoid deletion
2467 cursorRightOneWord(bview);
2468 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2469 selection.cursor = cursor;
2471 setSelection(bview);
2473 /* -----> Great, CutSelection() gets rid of multiple spaces. */
2474 cutSelection(bview, true, false);
2479 /* -------> Delete from cursor to start of current or prior word. */
2480 void LyXText::deleteWordBackward(BufferView * bview)
2482 if (!cursor.par()->size())
2485 LyXCursor tmpcursor = cursor;
2486 tmpcursor.row(0); // ??
2487 selection.set(true); // to avoid deletion
2488 cursorLeftOneWord(bview);
2489 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2490 selection.cursor = cursor;
2492 setSelection(bview);
2493 cutSelection(bview, true, false);
2498 /* -------> Kill to end of line. */
2499 void LyXText::deleteLineForward(BufferView * bview)
2501 if (!cursor.par()->size())
2502 // Paragraph is empty, so we just go to the right
2505 LyXCursor tmpcursor = cursor;
2506 // We can't store the row over a regular setCursor
2507 // so we set it to 0 and reset it afterwards.
2508 tmpcursor.row(0); //Â ??
2509 selection.set(true); // to avoid deletion
2511 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2512 selection.cursor = cursor;
2514 setSelection(bview);
2515 // What is this test for ??? (JMarc)
2516 if (!selection.set()) {
2517 deleteWordForward(bview);
2519 cutSelection(bview, true, false);
2525 // Change the case of a word at cursor position.
2526 // This function directly manipulates Paragraph::text because there
2527 // is no Paragraph::SetChar currently. I did what I could to ensure
2528 // that it is correct. I guess part of it should be moved to
2529 // Paragraph, but it will have to change for 1.1 anyway. At least
2530 // it does not access outside of the allocated array as the older
2531 // version did. (JMarc)
2532 void LyXText::changeCase(BufferView * bview, LyXText::TextCase action)
2537 if (selection.set()) {
2538 from = selection.start;
2541 getWord(from, to, PARTIAL_WORD);
2542 setCursor(bview, to.par(), to.pos() + 1);
2545 changeRegionCase(bview, from, to, action);
2549 void LyXText::changeRegionCase(BufferView * bview,
2550 LyXCursor const & from,
2551 LyXCursor const & to,
2552 LyXText::TextCase action)
2554 lyx::Assert(from <= to);
2556 setUndo(bview, Undo::FINISH,
2557 from.par(), to.par()->next());
2559 pos_type pos = from.pos();
2560 Paragraph * par = from.par();
2562 while (par && (pos != to.pos() || par != to.par())) {
2563 unsigned char c = par->getChar(pos);
2564 if (!IsInsetChar(c) && !IsHfillChar(c)) {
2566 case text_lowercase:
2569 case text_capitalization:
2571 action = text_lowercase;
2573 case text_uppercase:
2578 par->setChar(pos, c);
2579 checkParagraph(bview, par, pos);
2582 if (pos == par->size()) {
2587 if (to.row() != from.row()) {
2588 refresh_y = from.y() - from.row()->baseline();
2589 refresh_row = from.row();
2590 status(bview, LyXText::NEED_MORE_REFRESH);
2595 void LyXText::transposeChars(BufferView & bview)
2597 Paragraph * tmppar = cursor.par();
2599 setUndo(&bview, Undo::FINISH,
2600 tmppar, tmppar->next());
2602 pos_type tmppos = cursor.pos();
2604 // First decide if it is possible to transpose at all
2606 // We are at the beginning of a paragraph.
2607 if (tmppos == 0) return;
2609 // We are at the end of a paragraph.
2610 if (tmppos == tmppar->size() - 1) return;
2612 unsigned char c1 = tmppar->getChar(tmppos);
2613 unsigned char c2 = tmppar->getChar(tmppos - 1);
2615 if (c1 != Paragraph::META_INSET
2616 && c2 != Paragraph::META_INSET) {
2617 tmppar->setChar(tmppos, c2);
2618 tmppar->setChar(tmppos - 1, c1);
2620 // We should have an implementation that handles insets
2621 // as well, but that will have to come later. (Lgb)
2622 checkParagraph(const_cast<BufferView*>(&bview), tmppar, tmppos);
2626 void LyXText::Delete(BufferView * bview)
2628 // this is a very easy implementation
2630 LyXCursor old_cursor = cursor;
2631 int const old_cur_par_id = old_cursor.par()->id();
2632 int const old_cur_par_prev_id = old_cursor.par()->previous() ?
2633 old_cursor.par()->previous()->id() : 0;
2635 // just move to the right
2638 // CHECK Look at the comment here.
2639 // This check is not very good...
2640 // The cursorRightIntern calls DeleteEmptyParagrapgMechanism
2641 // and that can very well delete the par or par->previous in
2642 // old_cursor. Will a solution where we compare paragraph id's
2644 if ((cursor.par()->previous() ? cursor.par()->previous()->id() : 0)
2645 == old_cur_par_prev_id
2646 && cursor.par()->id() != old_cur_par_id) {
2647 // delete-empty-paragraph-mechanism has done it
2651 // if you had success make a backspace
2652 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
2653 LyXCursor tmpcursor = cursor;
2654 // to make sure undo gets the right cursor position
2655 cursor = old_cursor;
2656 setUndo(bview, Undo::DELETE,
2657 cursor.par(), cursor.par()->next());
2664 void LyXText::backspace(BufferView * bview)
2666 // Get the font that is used to calculate the baselineskip
2667 pos_type lastpos = cursor.par()->size();
2668 LyXFont rawparfont =
2669 cursor.par()->getFontSettings(bview->buffer()->params,
2672 if (cursor.pos() == 0) {
2673 // The cursor is at the beginning of a paragraph,
2674 // so the the backspace will collapse two paragraphs into one.
2676 // we may paste some paragraphs
2678 // is it an empty paragraph?
2681 || (lastpos == 1 && cursor.par()->isSeparator(0)))) {
2682 // This is an empty paragraph and we delete it just by moving the cursor one step
2683 // left and let the DeleteEmptyParagraphMechanism handle the actual deletion
2684 // of the paragraph.
2686 if (cursor.par()->previous()) {
2687 Paragraph * tmppar = cursor.par()->previous();
2688 if (cursor.par()->getLayout() == tmppar->getLayout()
2689 && cursor.par()->getAlign() == tmppar->getAlign()) {
2690 // Inherit bottom DTD from the paragraph below.
2691 // (the one we are deleting)
2692 tmppar->params().lineBottom(cursor.par()->params().lineBottom());
2693 tmppar->params().spaceBottom(cursor.par()->params().spaceBottom());
2694 tmppar->params().pagebreakBottom(cursor.par()->params().pagebreakBottom());
2699 // the layout things can change the height of a row !
2700 int const tmpheight = cursor.row()->height();
2701 setHeightOfRow(bview, cursor.row());
2702 if (cursor.row()->height() != tmpheight) {
2703 refresh_y = cursor.y() - cursor.row()->baseline();
2704 refresh_row = cursor.row();
2705 status(bview, LyXText::NEED_MORE_REFRESH);
2711 if (cursor.par()->previous()) {
2712 setUndo(bview, Undo::DELETE,
2713 cursor.par()->previous(), cursor.par()->next());
2716 Paragraph * tmppar = cursor.par();
2717 Row * tmprow = cursor.row();
2719 // We used to do cursorLeftIntern() here, but it is
2720 // not a good idea since it triggers the auto-delete
2721 // mechanism. So we do a cursorLeftIntern()-lite,
2722 // without the dreaded mechanism. (JMarc)
2723 if (cursor.par()->previous()) {
2724 // steps into the above paragraph.
2725 setCursorIntern(bview, cursor.par()->previous(),
2726 cursor.par()->previous()->size(),
2730 /* Pasting is not allowed, if the paragraphs have different
2731 layout. I think it is a real bug of all other
2732 word processors to allow it. It confuses the user.
2733 Even so with a footnote paragraph and a non-footnote
2734 paragraph. I will not allow pasting in this case,
2735 because the user would be confused if the footnote behaves
2736 different wether it is open or closed.
2738 Correction: Pasting is always allowed with standard-layout
2740 if (cursor.par() != tmppar
2741 && (cursor.par()->getLayout() == tmppar->getLayout()
2742 || tmppar->getLayout() == 0 /*standard*/)
2743 && cursor.par()->getAlign() == tmppar->getAlign())
2745 removeParagraph(tmprow);
2747 cursor.par()->pasteParagraph(bview->buffer()->params);
2749 if (!cursor.pos() || !cursor.par()->isSeparator(cursor.pos() - 1))
2750 ; //cursor.par()->insertChar(cursor.pos(), ' ');
2751 // strangely enough it seems that commenting out the line above removes
2752 // most or all of the segfaults. I will however also try to move the
2753 // two Remove... lines in front of the PasteParagraph too.
2756 cursor.pos(cursor.pos() - 1);
2758 status(bview, LyXText::NEED_MORE_REFRESH);
2759 refresh_row = cursor.row();
2760 refresh_y = cursor.y() - cursor.row()->baseline();
2762 // remove the lost paragraph
2763 // This one is not safe, since the paragraph that the tmprow and the
2764 // following rows belong to has been deleted by the PasteParagraph
2765 // above. The question is... could this be moved in front of the
2767 //RemoveParagraph(tmprow);
2768 //RemoveRow(tmprow);
2770 // This rebuilds the rows.
2771 appendParagraph(bview, cursor.row());
2772 updateCounters(bview, cursor.row());
2774 // the row may have changed, block, hfills etc.
2775 setCursor(bview, cursor.par(), cursor.pos(), false);
2778 /* this is the code for a normal backspace, not pasting
2780 setUndo(bview, Undo::DELETE,
2781 cursor.par(), cursor.par()->next());
2782 // We used to do cursorLeftIntern() here, but it is
2783 // not a good idea since it triggers the auto-delete
2784 // mechanism. So we do a cursorLeftIntern()-lite,
2785 // without the dreaded mechanism. (JMarc)
2786 setCursorIntern(bview, cursor.par(), cursor.pos()- 1,
2787 false, cursor.boundary());
2789 // some insets are undeletable here
2790 if (cursor.par()->isInset(cursor.pos())) {
2791 if (!cursor.par()->getInset(cursor.pos())->deletable())
2793 // force complete redo when erasing display insets
2794 // this is a cruel method but safe..... Matthias
2795 if (cursor.par()->getInset(cursor.pos())->display() ||
2796 cursor.par()->getInset(cursor.pos())->needFullRow()) {
2797 cursor.par()->erase(cursor.pos());
2798 redoParagraph(bview);
2803 Row * row = cursor.row();
2804 int y = cursor.y() - row->baseline();
2806 /* remember that a space at the end of a row doesnt count
2807 * when calculating the fill */
2808 if (cursor.pos() < rowLast(row) ||
2809 !cursor.par()->isLineSeparator(cursor.pos())) {
2810 row->fill(row->fill() + singleWidth(bview,
2815 /* some special code when deleting a newline. This is similar
2816 * to the behavior when pasting paragraphs */
2817 if (cursor.pos() && cursor.par()->isNewline(cursor.pos())) {
2818 cursor.par()->erase(cursor.pos());
2819 // refresh the positions
2821 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2822 tmprow = tmprow->next();
2823 tmprow->pos(tmprow->pos() - 1);
2825 if (cursor.par()->isLineSeparator(cursor.pos() - 1))
2826 cursor.pos(cursor.pos() - 1);
2828 if (cursor.pos() < cursor.par()->size()
2829 && !cursor.par()->isSeparator(cursor.pos())) {
2830 cursor.par()->insertChar(cursor.pos(), ' ');
2831 setCharFont(bview->buffer(), cursor.par(),
2832 cursor.pos(), current_font);
2833 // refresh the positions
2835 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2836 tmprow = tmprow->next();
2837 tmprow->pos(tmprow->pos() + 1);
2841 cursor.par()->erase(cursor.pos());
2843 // refresh the positions
2845 while (tmprow->next()
2846 && tmprow->next()->par() == row->par()) {
2847 tmprow = tmprow->next();
2848 tmprow->pos(tmprow->pos() - 1);
2851 // delete newlines at the beginning of paragraphs
2852 while (cursor.par()->size() &&
2853 cursor.par()->isNewline(cursor.pos()) &&
2854 cursor.pos() == beginningOfMainBody(bview->buffer(),
2856 cursor.par()->erase(cursor.pos());
2857 // refresh the positions
2859 while (tmprow->next() &&
2860 tmprow->next()->par() == row->par()) {
2861 tmprow = tmprow->next();
2862 tmprow->pos(tmprow->pos() - 1);
2867 // is there a break one row above
2868 if (row->previous() && row->previous()->par() == row->par()) {
2869 z = nextBreakPoint(bview, row->previous(),
2871 if (z >= row->pos()) {
2874 Row * tmprow = row->previous();
2876 // maybe the current row is now empty
2877 if (row->pos() >= row->par()->size()) {
2882 breakAgainOneRow(bview, row);
2883 if (row->next() && row->next()->par() == row->par())
2884 need_break_row = row->next();
2889 // set the dimensions of the row above
2890 y -= tmprow->height();
2891 tmprow->fill(fill(bview, tmprow,
2893 setHeightOfRow(bview, tmprow);
2896 refresh_row = tmprow;
2897 status(bview, LyXText::NEED_MORE_REFRESH);
2898 setCursor(bview, cursor.par(), cursor.pos(),
2899 false, cursor.boundary());
2900 //current_font = rawtmpfont;
2901 //real_current_font = realtmpfont;
2902 // check, whether the last character's font has changed.
2904 cursor.par()->getFontSettings(bview->buffer()->params,
2905 cursor.par()->size() - 1))
2906 redoHeightOfParagraph(bview, cursor);
2911 // break the cursor row again
2912 if (row->next() && row->next()->par() == row->par() &&
2913 (rowLast(row) == row->par()->size() - 1 ||
2914 nextBreakPoint(bview, row, workWidth(bview)) != rowLast(row))) {
2916 /* it can happen that a paragraph loses one row
2917 * without a real breakup. This is when a word
2918 * is to long to be broken. Well, I don t care this
2920 if (rowLast(row) == row->par()->size() - 1)
2921 removeRow(row->next());
2925 status(bview, LyXText::NEED_MORE_REFRESH);
2927 breakAgainOneRow(bview, row);
2928 // will the cursor be in another row now?
2929 if (row->next() && row->next()->par() == row->par() &&
2930 rowLast(row) <= cursor.pos()) {
2932 breakAgainOneRow(bview, row);
2935 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
2937 if (row->next() && row->next()->par() == row->par())
2938 need_break_row = row->next();
2942 // set the dimensions of the row
2943 row->fill(fill(bview, row, workWidth(bview)));
2944 int const tmpheight = row->height();
2945 setHeightOfRow(bview, row);
2946 if (tmpheight == row->height())
2947 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
2949 status(bview, LyXText::NEED_MORE_REFRESH);
2952 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
2956 // current_font = rawtmpfont;
2957 // real_current_font = realtmpfont;
2959 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
2960 != cursor.boundary())
2961 setCursor(bview, cursor.par(), cursor.pos(), false,
2962 !cursor.boundary());
2964 lastpos = cursor.par()->size();
2965 if (cursor.pos() == lastpos)
2966 setCurrentFont(bview);
2968 // check, whether the last characters font has changed.
2970 cursor.par()->getFontSettings(bview->buffer()->params, lastpos - 1)) {
2971 redoHeightOfParagraph(bview, cursor);
2973 // now the special right address boxes
2974 if (textclasslist.Style(bview->buffer()->params.textclass,
2975 cursor.par()->getLayout()).margintype == MARGIN_RIGHT_ADDRESS_BOX) {
2976 redoDrawingOfParagraph(bview, cursor);
2982 bool LyXText::paintRowBackground(DrawRowParams & p)
2984 bool clear_area = true;
2986 LyXFont font(LyXFont::ALL_SANE);
2988 pos_type const last = rowLastPrintable(p.row);
2990 if (!p.bv->screen()->forceClear() && last == p.row->pos()
2991 && p.row->par()->isInset(p.row->pos())) {
2992 inset = p.row->par()->getInset(p.row->pos());
2994 clear_area = inset->doClearArea();
3004 int const y = p.yo < 0 ? 0 : p.yo;
3005 int const h = p.yo < 0 ? p.row->height() + p.yo : p.row->height();
3006 p.pain->fillRectangle(x, y, p.width, h, backgroundColor());
3013 int h = p.row->baseline() - inset->ascent(p.bv, font);
3015 // first clear the whole row above the inset!
3017 p.pain->fillRectangle(p.xo, p.yo, p.width, h, backgroundColor());
3020 // clear the space below the inset!
3021 h += inset->ascent(p.bv, font) + inset->descent(p.bv, font);
3022 if ((p.row->height() - h) > 0) {
3023 p.pain->fillRectangle(p.xo, p.yo + h,
3024 p.width, p.row->height() - h, backgroundColor());
3027 // clear the space behind the inset, if needed
3028 if (!inset->display() && !inset->needFullRow()) {
3029 int const xp = int(p.x) + inset->width(p.bv, font);
3030 if (p.width - xp > 0) {
3031 p.pain->fillRectangle(xp, p.yo, p.width - xp,
3032 p.row->height(), backgroundColor());
3040 void LyXText::paintRowSelection(DrawRowParams & p)
3042 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3044 // the current selection
3045 int const startx = selection.start.x();
3046 int const endx = selection.end.x();
3047 int const starty = selection.start.y();
3048 int const endy = selection.end.y();
3049 Row const * startrow = selection.start.row();
3050 Row const * endrow = selection.end.row();
3054 if (bidi_same_direction) {
3058 int h = row->height();
3060 if (startrow == row && endrow == row) {
3061 if (startx < endx) {
3064 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3068 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3070 } else if (startrow == row) {
3071 int const x = (is_rtl) ? p.xo : (p.xo + startx);
3072 int const w = (is_rtl) ? startx : (p.width - startx);
3073 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3074 } else if (endrow == row) {
3075 int const x = (is_rtl) ? (p.xo + endx) : p.xo;
3076 int const w = (is_rtl) ? (p.width - endx) : endx;
3077 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3078 } else if (p.y > starty && p.y < endy) {
3079 p.pain->fillRectangle(p.xo, y, p.width, h, LColor::selection);
3082 } else if (startrow != row && endrow != row) {
3084 int h = row->height();
3085 if (p.y > starty && p.y < endy) {
3086 p.pain->fillRectangle(p.xo, p.yo, w, h, LColor::selection);
3091 if (!((startrow != row && !is_rtl) || (endrow != row && is_rtl))) {
3097 p.pain->fillRectangle(p.xo, p.yo, int(p.x), row->height(), LColor::selection);
3099 Buffer const * buffer = p.bv->buffer();
3100 Paragraph * par = row->par();
3101 pos_type main_body = beginningOfMainBody(buffer, par);
3102 pos_type const last = rowLastPrintable(row);
3104 for (pos_type vpos = row->pos(); vpos <= last; ++vpos) {
3105 pos_type pos = vis2log(vpos);
3106 float const old_tmpx = tmpx;
3107 if (main_body > 0 && pos == main_body - 1) {
3108 LyXLayout const & layout = textclasslist.Style(buffer->params.textclass,
3110 LyXFont const lfont = getLabelFont(buffer, par);
3113 tmpx += p.label_hfill + lyxfont::width(layout.labelsep, lfont);
3115 if (par->isLineSeparator(main_body - 1))
3116 tmpx -= singleWidth(p.bv, par, main_body - 1);
3119 if (hfillExpansion(buffer, row, pos)) {
3120 tmpx += singleWidth(p.bv, par, pos);
3121 if (pos >= main_body)
3124 tmpx += p.label_hfill;
3127 else if (par->isSeparator(pos)) {
3128 tmpx += singleWidth(p.bv, par, pos);
3129 if (pos >= main_body)
3130 tmpx += p.separator;
3132 tmpx += singleWidth(p.bv, par, pos);
3135 if ((startrow != row || selection.start.pos() <= pos) &&
3136 (endrow != row || pos < selection.end.pos())) {
3137 // Here we do not use p.x as p.xo was added to p.x.
3138 p.pain->fillRectangle(int(old_tmpx), p.yo,
3139 int(tmpx - old_tmpx + 1),
3140 row->height(), LColor::selection);
3143 if ((startrow != row && is_rtl) || (endrow != row && !is_rtl)) {
3144 p.pain->fillRectangle(p.xo + int(tmpx),
3145 p.yo, int(p.bv->workWidth() - tmpx),
3146 row->height(), LColor::selection);
3152 void LyXText::paintRowAppendix(DrawRowParams & p)
3154 // FIXME: can be just p.width ?
3155 int const ww = p.bv->workWidth();
3156 Paragraph * firstpar = p.row->par();
3158 if (firstpar->params().appendix()) {
3159 p.pain->line(1, p.yo, 1, p.yo + p.row->height(), LColor::appendixline);
3160 p.pain->line(ww - 2, p.yo, ww - 2, p.yo + p.row->height(), LColor::appendixline);
3165 void LyXText::paintRowDepthBar(DrawRowParams & p)
3167 Paragraph::depth_type const depth = p.row->par()->getDepth();
3172 Paragraph::depth_type prev_depth = 0;
3173 if (p.row->previous())
3174 prev_depth = p.row->previous()->par()->getDepth();
3175 Paragraph::depth_type next_depth = 0;
3177 next_depth = p.row->next()->par()->getDepth();
3179 for (Paragraph::depth_type i = 1; i <= depth; ++i) {
3180 int const x = (LYX_PAPER_MARGIN / 5) * i + p.xo;
3181 int const h = p.yo + p.row->height() - 1 - (i - next_depth - 1) * 3;
3183 p.pain->line(x, p.yo, x, h, LColor::depthbar);
3185 int const w = LYX_PAPER_MARGIN / 5;
3187 if (i > prev_depth) {
3188 p.pain->fillRectangle(x, p.yo, w, 2, LColor::depthbar);
3190 if (i > next_depth) {
3191 p.pain->fillRectangle(x, h, w, 2, LColor::depthbar);
3197 int LyXText::getLengthMarkerHeight(BufferView * bv, VSpace const & vsp) const
3199 int const arrow_size = 4;
3200 int const space_size = int(vsp.inPixels(bv));
3202 if (vsp.kind() != VSpace::LENGTH) {
3208 int const min_size = std::max(3 * arrow_size,
3209 lyxfont::maxAscent(font)
3210 + lyxfont::maxDescent(font));
3212 if (vsp.length().len().value() < 0.0)
3215 return std::max(min_size, space_size);
3219 int LyXText::drawLengthMarker(DrawRowParams & p, string const & prefix,
3220 VSpace const & vsp, int start)
3222 int const arrow_size = 4;
3223 int const size = getLengthMarkerHeight(p.bv, vsp);
3224 int const end = start + size;
3226 // the label to display (if any)
3228 // y-values for top arrow
3230 // y-values for bottom arrow
3232 switch (vsp.kind()) {
3233 case VSpace::LENGTH:
3235 str = prefix + " (" + vsp.asLyXCommand() + ")";
3236 // adding or removing space
3237 bool const added = !(vsp.length().len().value() < 0.0);
3238 ty1 = added ? (start + arrow_size) : start;
3239 ty2 = added ? start : (start + arrow_size);
3240 by1 = added ? (end - arrow_size) : end;
3241 by2 = added ? end : (end - arrow_size);
3244 case VSpace:: VFILL:
3245 str = prefix + " (vertical fill)";
3250 // nothing to draw here
3254 int const leftx = p.xo + leftMargin(p.bv, p.row);
3255 int const midx = leftx + arrow_size;
3256 int const rightx = midx + arrow_size;
3264 font.setColor(LColor::added_space).decSize();
3265 lyxfont::rectText(str, font, w, a, d);
3267 p.pain->rectText(leftx + 2 * arrow_size + 5,
3268 start + ((end - start) / 2) + d,
3274 p.pain->line(leftx, ty1, midx, ty2, LColor::added_space);
3275 p.pain->line(midx, ty2, rightx, ty1, LColor::added_space);
3278 p.pain->line(leftx, by1, midx, by2, LColor::added_space);
3279 p.pain->line(midx, by2, rightx, by1, LColor::added_space);
3282 p.pain->line(midx, ty2, midx, by2, LColor::added_space);
3288 void LyXText::paintFirstRow(DrawRowParams & p)
3290 Paragraph * par = p.row->par();
3291 ParagraphParameters const & parparams = par->params();
3293 // start of appendix?
3294 if (parparams.startOfAppendix()) {
3295 p.pain->line(1, p.yo, p.width - 2, p.yo, LColor::appendixline);
3300 // think about the margins
3301 if (!p.row->previous() && bv_owner)
3302 y_top += LYX_PAPER_MARGIN;
3304 // draw a top pagebreak
3305 if (parparams.pagebreakTop()) {
3306 int const y = p.yo + y_top + 2*defaultHeight();
3307 p.pain->line(p.xo, y, p.xo + p.width, y,
3308 LColor::pagebreak, Painter::line_onoffdash);
3315 pb_font.setColor(LColor::pagebreak).decSize();
3316 lyxfont::rectText(_("Page Break (top)"), pb_font, w, a, d);
3317 p.pain->rectText((p.width - w)/2, y + d,
3318 _("Page Break (top)"), pb_font,
3321 y_top += 3 * defaultHeight();
3324 // draw the additional space if needed:
3325 y_top += drawLengthMarker(p, _("Space above"),
3326 parparams.spaceTop(), p.yo + y_top);
3328 Buffer const * buffer = p.bv->buffer();
3330 LyXLayout const & layout =
3331 textclasslist.Style(buffer->params.textclass, par->getLayout());
3333 // think about the parskip
3334 // some parskips VERY EASY IMPLEMENTATION
3335 if (buffer->params.paragraph_separation == BufferParams::PARSEP_SKIP) {
3336 if (par->previous()) {
3337 if (layout.latextype == LATEX_PARAGRAPH
3338 && !par->getDepth()) {
3339 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3341 LyXLayout const & playout =
3342 textclasslist.Style(buffer->params.textclass,
3343 par->previous()->getLayout());
3344 if (playout.latextype == LATEX_PARAGRAPH
3345 && !par->previous()->getDepth()) {
3346 // is it right to use defskip here, too? (AS)
3347 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3353 int const ww = p.bv->workWidth();
3356 if (parparams.lineTop()) {
3357 LyXFont font(LyXFont::ALL_SANE);
3358 int const asc = lyxfont::ascent('x', getFont(buffer, par, 0));
3362 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3363 int const xp = static_cast<int>(inset_owner ? p.xo : 0);
3364 p.pain->line(xp, p.yo + y_top, xp + w, p.yo + y_top,
3365 LColor::topline, Painter::line_solid,
3366 Painter::line_thick);
3371 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3373 // should we print a label?
3374 if (layout.labeltype >= LABEL_STATIC
3375 && (layout.labeltype != LABEL_STATIC
3376 || layout.latextype != LATEX_ENVIRONMENT
3377 || par->isFirstInSequence())) {
3379 LyXFont font = getLabelFont(buffer, par);
3380 if (!par->getLabelstring().empty()) {
3382 string const str = par->getLabelstring();
3384 // this is special code for the chapter layout. This is
3385 // printed in an extra row and has a pagebreak at
3387 if (layout.labeltype == LABEL_COUNTER_CHAPTER) {
3388 if (buffer->params.secnumdepth >= 0) {
3389 float spacing_val = 1.0;
3390 if (!parparams.spacing().isDefault()) {
3391 spacing_val = parparams.spacing().getValue();
3393 spacing_val = buffer->params.spacing.getValue();
3397 int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val)
3398 + int(layout.parsep) * defaultHeight();
3401 x = ww - leftMargin(p.bv, p.row) -
3402 lyxfont::width(str, font);
3405 p.pain->text(int(x),
3406 p.yo + p.row->baseline() -
3407 p.row->ascent_of_text() - maxdesc,
3412 x = ww - leftMargin(p.bv, p.row)
3413 + lyxfont::width(layout.labelsep, font);
3415 x = p.x - lyxfont::width(layout.labelsep, font)
3416 - lyxfont::width(str, font);
3419 p.pain->text(int(x), p.yo + p.row->baseline(), str, font);
3422 // the labels at the top of an environment.
3423 // More or less for bibliography
3424 } else if (par->isFirstInSequence() &&
3425 (layout.labeltype == LABEL_TOP_ENVIRONMENT ||
3426 layout.labeltype == LABEL_BIBLIO ||
3427 layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
3428 LyXFont font = getLabelFont(buffer, par);
3429 if (!par->getLabelstring().empty()) {
3430 string const str = par->getLabelstring();
3431 float spacing_val = 1.0;
3432 if (!parparams.spacing().isDefault()) {
3433 spacing_val = parparams.spacing().getValue();
3435 spacing_val = buffer->params.spacing.getValue();
3439 int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val
3440 + (layout.labelbottomsep * defaultHeight()));
3443 if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
3444 x = ((is_rtl ? leftMargin(p.bv, p.row) : p.x)
3445 + ww - rightMargin(buffer, p.row) ) / 2;
3446 x -= lyxfont::width(str, font) / 2;
3447 } else if (is_rtl) {
3448 x = ww - leftMargin(p.bv, p.row) -
3449 lyxfont::width(str, font);
3451 p.pain->text(int(x), p.yo + p.row->baseline()
3452 - p.row->ascent_of_text() - maxdesc,
3457 if (layout.labeltype == LABEL_BIBLIO && par->bibkey) {
3458 LyXFont font = getLayoutFont(buffer, par);
3461 x = ww - leftMargin(p.bv, p.row)
3462 + lyxfont::width(layout.labelsep, font);
3464 x = p.x - lyxfont::width(layout.labelsep, font)
3465 - par->bibkey->width(p.bv, font);
3467 par->bibkey->draw(p.bv, font, p.yo + p.row->baseline(), x, p.cleared);
3472 void LyXText::paintLastRow(DrawRowParams & p)
3474 Paragraph * par = p.row->par();
3475 ParagraphParameters const & parparams = par->params();
3476 int y_bottom = p.row->height() - 1;
3478 // think about the margins
3479 if (!p.row->next() && bv_owner)
3480 y_bottom -= LYX_PAPER_MARGIN;
3482 int const ww = p.bv->workWidth();
3484 // draw a bottom pagebreak
3485 if (parparams.pagebreakBottom()) {
3487 pb_font.setColor(LColor::pagebreak).decSize();
3488 int const y = p.yo + y_bottom - 2 * defaultHeight();
3490 p.pain->line(p.xo, y, p.xo + p.width, y, LColor::pagebreak,
3491 Painter::line_onoffdash);
3496 lyxfont::rectText(_("Page Break (bottom)"), pb_font, w, a, d);
3497 p.pain->rectText((ww - w) / 2, y + d,
3498 _("Page Break (bottom)"),
3499 pb_font, backgroundColor(), backgroundColor());
3501 y_bottom -= 3 * defaultHeight();
3504 // draw the additional space if needed:
3505 int const height = getLengthMarkerHeight(p.bv,
3506 parparams.spaceBottom());
3507 y_bottom -= drawLengthMarker(p, _("Space below"),
3508 parparams.spaceBottom(),
3509 p.yo + y_bottom - height);
3511 Buffer const * buffer = p.bv->buffer();
3513 // draw a bottom line
3514 if (parparams.lineBottom()) {
3515 LyXFont font(LyXFont::ALL_SANE);
3516 int const asc = lyxfont::ascent('x',
3517 getFont(buffer, par,
3518 max(pos_type(0), par->size() - 1)));
3522 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3523 int const xp = static_cast<int>(inset_owner ? p.xo : 0);
3524 int const y = p.yo + y_bottom;
3525 p.pain->line(xp, y, xp + w, y, LColor::topline, Painter::line_solid,
3526 Painter::line_thick);
3531 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3532 int const endlabel = par->getEndLabel(buffer->params);
3537 case END_LABEL_FILLED_BOX:
3539 LyXFont const font = getLabelFont(buffer, par);
3540 int const size = int(0.75 * lyxfont::maxAscent(font));
3541 int const y = (p.yo + p.row->baseline()) - size;
3542 int x = is_rtl ? LYX_PAPER_MARGIN : ww - LYX_PAPER_MARGIN - size;
3544 if (p.row->fill() <= size)
3545 x += (size - p.row->fill() + 1) * (is_rtl ? -1 : 1);
3547 if (endlabel == END_LABEL_BOX) {
3548 p.pain->rectangle(x, y, size, size, LColor::eolmarker);
3550 p.pain->fillRectangle(x, y, size, size,
3555 case END_LABEL_STATIC:
3557 LyXFont font(LyXFont::ALL_SANE);
3558 LyXTextClass::LayoutList::size_type layout = par->getLayout();
3559 string const str = textclasslist.
3560 Style(buffer->params.textclass, layout).endlabelstring();
3561 font = getLabelFont(buffer, par);
3562 int const x = is_rtl ?
3563 int(p.x) - lyxfont::width(str, font)
3564 : ww - rightMargin(buffer, p.row) - p.row->fill();
3565 p.pain->text(x, p.yo + p.row->baseline(), str, font);
3568 case END_LABEL_NO_LABEL:
3573 void LyXText::paintRowText(DrawRowParams & p)
3575 Paragraph * par = p.row->par();
3576 Buffer const * buffer = p.bv->buffer();
3578 pos_type const last = rowLastPrintable(p.row);
3579 pos_type main_body =
3580 beginningOfMainBody(buffer, par);
3581 if (main_body > 0 &&
3582 (main_body - 1 > last ||
3583 !par->isLineSeparator(main_body - 1))) {
3587 LyXLayout const & layout =
3588 textclasslist.Style(buffer->params.textclass, par->getLayout());
3590 pos_type vpos = p.row->pos();
3591 while (vpos <= last) {
3592 pos_type pos = vis2log(vpos);
3593 if (main_body > 0 && pos == main_body - 1) {
3594 int const lwidth = lyxfont::width(layout.labelsep,
3595 getLabelFont(buffer, par));
3597 p.x += p.label_hfill + lwidth
3598 - singleWidth(p.bv, par, main_body - 1);
3601 if (par->isHfill(pos)) {
3604 int const y0 = p.yo + p.row->baseline();
3605 int const y1 = y0 - defaultHeight() / 2;
3607 p.pain->line(int(p.x), y1, int(p.x), y0,
3608 LColor::added_space);
3610 if (hfillExpansion(buffer, p.row, pos)) {
3611 int const y2 = (y0 + y1) / 2;
3613 if (pos >= main_body) {
3614 p.pain->line(int(p.x), y2,
3615 int(p.x + p.hfill), y2,
3616 LColor::added_space,
3617 Painter::line_onoffdash);
3620 p.pain->line(int(p.x), y2,
3621 int(p.x + p.label_hfill), y2,
3622 LColor::added_space,
3623 Painter::line_onoffdash);
3624 p.x += p.label_hfill;
3626 p.pain->line(int(p.x), y1,
3628 LColor::added_space);
3632 } else if (par->isSeparator(pos)) {
3633 p.x += singleWidth(p.bv, par, pos);
3634 if (pos >= main_body)
3644 void LyXText::getVisibleRow(BufferView * bv, int y_offset, int x_offset,
3645 Row * row, int y, bool cleared)
3647 if (row->height() <= 0) {
3648 lyxerr << "LYX_ERROR: row.height: "
3649 << row->height() << endl;
3655 // set up drawing parameters
3657 p.pain = &bv->painter();
3661 prepareToPrint(bv, row, p.x, p.separator, p.hfill, p.label_hfill);
3662 if (inset_owner && (p.x < 0))
3666 p.width = inset_owner ? inset_owner->textWidth(bv, true) : bv->workWidth();
3667 p.cleared = cleared;
3671 // clear to background if necessary
3672 p.cleared = paintRowBackground(p);
3674 // paint the selection background
3675 if (selection.set()) {
3676 paintRowSelection(p);
3679 // vertical lines for appendix
3680 paintRowAppendix(p);
3682 // environment depth brackets
3683 paintRowDepthBar(p);
3685 // draw any stuff wanted for a first row of a paragraph
3690 // draw any stuff wanted for the last row of a paragraph
3691 if (!row->next() || (row->next()->par() != row->par())) {
3700 int LyXText::defaultHeight() const
3702 LyXFont font(LyXFont::ALL_SANE);
3703 return int(lyxfont::maxAscent(font) + lyxfont::maxDescent(font) * 1.5);
3707 /* returns the column near the specified x-coordinate of the row
3708 * x is set to the real beginning of this column */
3710 LyXText::getColumnNearX(BufferView * bview, Row * row, int & x,
3711 bool & boundary) const
3714 float fill_separator;
3716 float fill_label_hfill;
3718 prepareToPrint(bview, row, tmpx, fill_separator,
3719 fill_hfill, fill_label_hfill);
3721 pos_type vc = row->pos();
3722 pos_type last = rowLastPrintable(row);
3724 LyXLayout const & layout =
3725 textclasslist.Style(bview->buffer()->params.textclass,
3726 row->par()->getLayout());
3727 bool left_side = false;
3729 pos_type main_body = beginningOfMainBody(bview->buffer(), row->par());
3730 float last_tmpx = tmpx;
3732 if (main_body > 0 &&
3733 (main_body - 1 > last ||
3734 !row->par()->isLineSeparator(main_body - 1)))
3737 while (vc <= last && tmpx <= x) {
3740 if (main_body > 0 && c == main_body-1) {
3741 tmpx += fill_label_hfill +
3742 lyxfont::width(layout.labelsep,
3743 getLabelFont(bview->buffer(), row->par()));
3744 if (row->par()->isLineSeparator(main_body - 1))
3745 tmpx -= singleWidth(bview, row->par(), main_body-1);
3748 if (hfillExpansion(bview->buffer(), row, c)) {
3749 x += singleWidth(bview, row->par(), c);
3753 tmpx += fill_label_hfill;
3755 else if (row->par()->isSeparator(c)) {
3756 tmpx += singleWidth(bview, row->par(), c);
3758 tmpx+= fill_separator;
3760 tmpx += singleWidth(bview, row->par(), c);
3764 if ((tmpx + last_tmpx) / 2 > x) {
3769 if (vc > last + 1) // This shouldn't happen.
3773 bool const lastrow = lyxrc.rtl_support // This is not needed, but gives
3774 // some speedup if rtl_support=false
3775 && (!row->next() || row->next()->par() != row->par());
3776 bool const rtl = (lastrow)
3777 ? row->par()->isRightToLeftPar(bview->buffer()->params)
3778 : false; // If lastrow is false, we don't need to compute
3779 // the value of rtl.
3781 if (row->pos() > last) // Row is empty?
3784 ( ( rtl && left_side && vc == row->pos() && x < tmpx - 5) ||
3785 (!rtl && !left_side && vc == last + 1 && x > tmpx + 5) ))
3787 else if (vc == row->pos()) {
3789 if (bidi_level(c) % 2 == 1)
3792 c = vis2log(vc - 1);
3793 bool const rtl = (bidi_level(c) % 2 == 1);
3794 if (left_side == rtl) {
3796 boundary = isBoundary(bview->buffer(), row->par(), c);
3800 if (row->pos() <= last && c > last
3801 && row->par()->isNewline(last)) {
3802 if (bidi_level(last) % 2 == 0)
3803 tmpx -= singleWidth(bview, row->par(), last);
3805 tmpx += singleWidth(bview, row->par(), last);
3815 // returns pointer to a specified row
3816 Row * LyXText::getRow(Paragraph * par, pos_type pos, int & y) const
3821 Row * tmprow = firstrow;
3824 // find the first row of the specified paragraph
3825 while (tmprow->next() && tmprow->par() != par) {
3826 y += tmprow->height();
3827 tmprow = tmprow->next();
3830 // now find the wanted row
3831 while (tmprow->pos() < pos
3833 && tmprow->next()->par() == par
3834 && tmprow->next()->pos() <= pos) {
3835 y += tmprow->height();
3836 tmprow = tmprow->next();
3843 Row * LyXText::getRowNearY(int & y) const
3845 // If possible we should optimize this method. (Lgb)
3846 Row * tmprow = firstrow;
3849 while (tmprow->next() && tmpy + tmprow->height() <= y) {
3850 tmpy += tmprow->height();
3851 tmprow = tmprow->next();
3854 y = tmpy; // return the real y
3859 int LyXText::getDepth() const
3861 return cursor.par()->getDepth();