1 /* This file is part of
2 * ======================================================
4 * LyX, The Document Processor
6 * Copyright 1995 Matthias Ettrich
7 * Copyright 1995-2001 The LyX Team.
9 * ====================================================== */
15 #include "paragraph.h"
17 #include "bufferparams.h"
22 #include "frontends/LyXView.h"
23 #include "frontends/Painter.h"
24 #include "frontends/font_metrics.h"
25 #include "frontends/screen.h"
26 #include "bufferview_funcs.h"
27 #include "BufferView.h"
29 #include "ParagraphParameters.h"
30 #include "undo_funcs.h"
31 #include "WordLangTuple.h"
32 #include "funcrequest.h"
34 #include "insets/insetbib.h"
35 #include "insets/insettext.h"
37 #include "support/textutils.h"
38 #include "support/LAssert.h"
39 #include "support/lstrings.h"
51 int const LYX_PAPER_MARGIN = 20;
55 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
58 int LyXText::workWidth(BufferView * bview) const
61 return inset_owner->textWidth(bview);
63 return bview->workWidth();
67 int LyXText::workWidth(BufferView * bview, Inset * inset) const
72 par = inset->parOwner();
74 pos = par->getPositionOfInset(inset);
76 if (!par || pos == -1) {
77 lyxerr << "LyXText::workWidth: something is wrong,"
78 " fall back to the brute force method" << endl;
79 Buffer::inset_iterator it = bview->buffer()->inset_iterator_begin();
80 Buffer::inset_iterator end = bview->buffer()->inset_iterator_end();
81 for (; it != end; ++it) {
91 return workWidth(bview);
94 LyXLayout_ptr const & layout = par->layout();
96 if (layout->margintype != MARGIN_RIGHT_ADDRESS_BOX) {
97 // Optimization here: in most cases, the real row is
98 // not needed, but only the par/pos values. So we just
99 // construct a dummy row for leftMargin. (JMarc)
103 return workWidth(bview) - leftMargin(bview, &dummyrow);
106 Row * row = getRow(par, pos, dummy_y);
108 while (frow->previous() && frow->par() == frow->previous()->par())
109 frow = frow->previous();
110 unsigned int maxw = 0;
111 while (frow->next() && frow->par() == frow->next()->par()) {
112 if ((frow != row) && (maxw < frow->width()))
113 maxw = frow->width();
119 return workWidth(bview);
123 int LyXText::getRealCursorX(BufferView * bview) const
126 if (the_locking_inset && (the_locking_inset->getLyXText(bview)!=this))
127 x = the_locking_inset->getLyXText(bview)->getRealCursorX(bview);
132 unsigned char LyXText::transformChar(unsigned char c, Paragraph * par,
135 if (!Encodings::is_arabic(c))
136 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
137 return c + (0xb0 - '0');
141 unsigned char const prev_char = pos > 0 ? par->getChar(pos-1) : ' ';
142 unsigned char next_char = ' ';
144 for (pos_type i = pos+1; i < par->size(); ++i)
145 if (!Encodings::IsComposeChar_arabic(par->getChar(i))) {
146 next_char = par->getChar(i);
150 if (Encodings::is_arabic(next_char)) {
151 if (Encodings::is_arabic(prev_char))
152 return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
154 return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
156 if (Encodings::is_arabic(prev_char))
157 return Encodings::TransformChar(c, Encodings::FORM_FINAL);
159 return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
163 // This is the comments that some of the warnings below refers to.
164 // There are some issues in this file and I don't think they are
165 // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that
166 // this is a problem that has been here almost from day one and that a
167 // larger userbase with differenct access patters triggers the bad
168 // behaviour. (segfaults.) What I think happen is: In several places
169 // we store the paragraph in the current cursor and then moves the
170 // cursor. This movement of the cursor will delete paragraph at the
171 // old position if it is now empty. This will make the temporary
172 // pointer to the old cursor paragraph invalid and dangerous to use.
173 // And is some cases this will trigger a segfault. I have marked some
174 // of the cases where this happens with a warning, but I am sure there
175 // are others in this file and in text2.C. There is also a note in
176 // Delete() that you should read. In Delete I store the paragraph->id
177 // instead of a pointer to the paragraph. I am pretty sure this faulty
178 // use of temporary pointers to paragraphs that might have gotten
179 // invalidated (through a cursor movement) before they are used, are
180 // the cause of the strange crashes we get reported often.
182 // It is very tiresom to change this code, especially when it is as
183 // hard to read as it is. Help to fix all the cases where this is done
184 // would be greately appreciated.
188 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
191 char const c = par->getChar(pos);
192 return singleWidth(bview, par, pos, c);
196 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
197 pos_type pos, char c) const
199 LyXFont const font = getFont(bview->buffer(), par, pos);
201 // The most common case is handled first (Asger)
202 if (IsPrintable(c)) {
203 if (font.language()->RightToLeft()) {
204 if (font.language()->lang() == "arabic" &&
205 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
206 lyxrc.font_norm_type == LyXRC::ISO_10646_1))
207 if (Encodings::IsComposeChar_arabic(c))
210 c = transformChar(c, par, pos);
211 else if (font.language()->lang() == "hebrew" &&
212 Encodings::IsComposeChar_hebrew(c))
215 return font_metrics::width(c, font);
217 } else if (IsHfillChar(c)) {
218 // Because of the representation as vertical lines
220 } else if (c == Paragraph::META_INSET) {
221 Inset * tmpinset = par->getInset(pos);
224 // this IS needed otherwise on initialitation we don't get the fill
225 // of the row right (ONLY on initialization if we read a file!)
226 // should be changed! (Jug 20011204)
227 tmpinset->update(bview, font);
229 return tmpinset->width(bview, font);
233 } else if (IsSeparatorChar(c))
235 else if (IsNewlineChar(c))
237 return font_metrics::width(c, font);
241 // Returns the paragraph position of the last character in the specified row
242 pos_type LyXText::rowLast(Row const * row) const
244 if (!row->next() || row->next()->par() != row->par()) {
245 return row->par()->size() - 1;
247 return row->next()->pos() - 1;
252 pos_type LyXText::rowLastPrintable(Row const * row) const
254 pos_type const last = rowLast(row);
255 bool ignore_the_space_on_the_last_position = true;
257 // we have to consider a space on the last position in this case!
258 if (row->next() && row->par() == row->next()->par() &&
259 row->next()->par()->getChar(last+1) == Paragraph::META_INSET &&
260 (ins=row->next()->par()->getInset(last+1)) &&
261 (ins->needFullRow() || ins->display()))
263 ignore_the_space_on_the_last_position = false;
265 if (last >= row->pos()
267 && row->next()->par() == row->par()
268 && row->par()->isSeparator(last)
269 && ignore_the_space_on_the_last_position)
276 void LyXText::computeBidiTables(Buffer const * buf, Row * row) const
278 bidi_same_direction = true;
279 if (!lyxrc.rtl_support) {
284 Inset * inset = row->par()->inInset();
285 if (inset && inset->owner() &&
286 inset->owner()->lyxCode() == Inset::ERT_CODE) {
291 bidi_start = row->pos();
292 bidi_end = rowLastPrintable(row);
294 if (bidi_start > bidi_end) {
299 if (bidi_end + 2 - bidi_start >
300 static_cast<pos_type>(log2vis_list.size())) {
302 (bidi_end + 2 - bidi_start < 500) ?
303 500 : 2 * (bidi_end + 2 - bidi_start);
304 log2vis_list.resize(new_size);
305 vis2log_list.resize(new_size);
306 bidi_levels.resize(new_size);
309 vis2log_list[bidi_end + 1 - bidi_start] = -1;
310 log2vis_list[bidi_end + 1 - bidi_start] = -1;
314 row->par()->isRightToLeftPar(buf->params);
318 pos_type const main_body = beginningOfMainBody(buf, row->par());
320 for (pos_type lpos = bidi_start; lpos <= bidi_end; ++lpos) {
321 bool is_space = row->par()->isLineSeparator(lpos);
323 (is_space && lpos + 1 <= bidi_end &&
324 !row->par()->isLineSeparator(lpos + 1) &&
325 !row->par()->isNewline(lpos + 1))
327 LyXFont font = row->par()->getFontSettings(buf->params, pos);
328 if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() &&
329 font.number() == LyXFont::ON &&
330 row->par()->getFontSettings(buf->params, lpos - 1).number()
332 font = row->par()->getFontSettings(buf->params, lpos);
337 bool new_rtl = font.isVisibleRightToLeft();
338 bool new_rtl0 = font.isRightToLeft();
341 if (lpos == main_body - 1
342 && row->pos() < main_body - 1
344 new_level = (rtl_par) ? 1 : 0;
345 new_rtl = new_rtl0 = rtl_par;
347 new_level = (new_rtl) ? 1 : 2;
349 new_level = (rtl_par) ? 2 : 0;
351 if (is_space && new_level >= level) {
357 int new_level2 = new_level;
359 if (level == new_level && rtl0 != new_rtl0) {
361 log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1;
362 } else if (level < new_level) {
363 log2vis_list[lpos - bidi_start] = (rtl) ? -1 : 1;
364 if (new_level > rtl_par)
365 bidi_same_direction = false;
367 log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1;
370 bidi_levels[lpos - bidi_start] = new_level;
372 while (level > new_level2) {
373 pos_type old_lpos = stack[--level];
374 int delta = lpos - old_lpos - 1;
377 log2vis_list[lpos - bidi_start] += delta;
378 log2vis_list[old_lpos - bidi_start] += delta;
380 while (level < new_level)
381 stack[level++] = lpos;
385 pos_type const old_lpos = stack[--level];
386 int delta = bidi_end - old_lpos;
389 log2vis_list[old_lpos - bidi_start] += delta;
392 pos_type vpos = bidi_start - 1;
393 for (pos_type lpos = bidi_start;
394 lpos <= bidi_end; ++lpos) {
395 vpos += log2vis_list[lpos - bidi_start];
396 vis2log_list[vpos - bidi_start] = lpos;
397 log2vis_list[lpos - bidi_start] = vpos;
402 // This method requires a previous call to ComputeBidiTables()
403 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
406 if (!lyxrc.rtl_support || pos == 0)
409 if (!bidi_InRange(pos - 1)) {
410 /// This can happen if pos is the first char of a row.
411 /// Returning false in this case is incorrect!
415 bool const rtl = bidi_level(pos - 1) % 2;
416 bool const rtl2 = bidi_InRange(pos)
417 ? bidi_level(pos) % 2
418 : par->isRightToLeftPar(buf->params);
423 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
424 pos_type pos, LyXFont const & font) const
426 if (!lyxrc.rtl_support)
427 return false; // This is just for speedup
429 bool const rtl = font.isVisibleRightToLeft();
430 bool const rtl2 = bidi_InRange(pos)
431 ? bidi_level(pos) % 2
432 : par->isRightToLeftPar(buf->params);
437 void LyXText::drawNewline(DrawRowParams & p, pos_type const pos)
439 // Draw end-of-line marker
440 LyXFont const font = getFont(p.bv->buffer(), p.row->par(), pos);
441 int const wid = font_metrics::width('n', font);
442 int const asc = font_metrics::maxAscent(font);
443 int const y = p.yo + p.row->baseline();
447 yp[0] = int(y - 0.875 * asc * 0.75);
448 yp[1] = int(y - 0.500 * asc * 0.75);
449 yp[2] = int(y - 0.125 * asc * 0.75);
451 if (bidi_level(pos) % 2 == 0) {
452 xp[0] = int(p.x + wid * 0.375);
454 xp[2] = int(p.x + wid * 0.375);
456 xp[0] = int(p.x + wid * 0.625);
457 xp[1] = int(p.x + wid);
458 xp[2] = int(p.x + wid * 0.625);
461 p.pain->lines(xp, yp, 3, LColor::eolmarker);
463 yp[0] = int(y - 0.500 * asc * 0.75);
464 yp[1] = int(y - 0.500 * asc * 0.75);
465 yp[2] = int(y - asc * 0.75);
467 if (bidi_level(pos) % 2 == 0) {
469 xp[1] = int(p.x + wid);
470 xp[2] = int(p.x + wid);
472 xp[0] = int(p.x + wid);
477 p.pain->lines(xp, yp, 3, LColor::eolmarker);
483 bool LyXText::drawInset(DrawRowParams & p, pos_type const pos)
485 Inset * inset = p.row->par()->getInset(pos);
487 // FIXME: shouldn't happen
492 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
493 // we need this here as the row pointer may be illegal
494 // at a later time (Jug20020502)
495 Row * prev = p.row->previous();
497 inset->update(p.bv, font, false);
498 inset->draw(p.bv, font, p.yo + p.row->baseline(), p.x, p.cleared);
500 if (!need_break_row && !inset_owner
501 && p.bv->text->status() == CHANGED_IN_DRAW) {
502 if (prev && prev->par() == p.row->par()) {
503 breakAgainOneRow(p.bv, prev);
504 if (prev->next() != p.row) {
505 // breakAgainOneRow() has removed p.row
506 p.row = 0; // see what this breaks
507 need_break_row = prev;
509 need_break_row = p.row;
512 need_break_row = firstrow;
514 need_break_row = prev->next();
516 setCursor(p.bv, cursor.par(), cursor.pos());
523 void LyXText::drawForeignMark(DrawRowParams & p, float const orig_x, LyXFont const & orig_font)
525 if (!lyxrc.mark_foreign_language)
527 if (orig_font.language() == latex_language)
529 if (orig_font.language() == p.bv->buffer()->params.language)
532 int const y = p.yo + p.row->height() - 1;
533 p.pain->line(int(orig_x), y, int(p.x), y, LColor::language);
537 void LyXText::drawHebrewComposeChar(DrawRowParams & p, pos_type & vpos)
539 pos_type pos = vis2log(vpos);
544 char c = p.row->par()->getChar(pos);
548 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
549 int const width = font_metrics::width(c, font);
552 for (pos_type i = pos-1; i >= 0; --i) {
553 c = p.row->par()->getChar(i);
554 if (!Encodings::IsComposeChar_hebrew(c)) {
555 if (IsPrintableNonspace(c)) {
557 singleWidth(p.bv, p.row->par(), i, c);
559 dx = (c == 'ø' || c == 'ã')
561 : (width2 - width) / 2;
568 p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font);
572 void LyXText::drawArabicComposeChar(DrawRowParams & p, pos_type & vpos)
574 pos_type pos = vis2log(vpos);
578 char c = p.row->par()->getChar(pos);
579 c = transformChar(c, p.row->par(), pos);
583 LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos);
584 int const width = font_metrics::width(c, font);
587 for (pos_type i = pos-1; i >= 0; --i) {
588 c = p.row->par()->getChar(i);
589 if (!Encodings::IsComposeChar_arabic(c)) {
590 if (IsPrintableNonspace(c)) {
592 singleWidth(p.bv, p.row->par(), i, c);
593 dx = (width2 - width) / 2;
599 p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font);
603 void LyXText::drawChars(DrawRowParams & p, pos_type & vpos,
604 bool hebrew, bool arabic)
606 pos_type pos = vis2log(vpos);
607 pos_type const last = rowLastPrintable(p.row);
608 LyXFont const & orig_font = getFont(p.bv->buffer(), p.row->par(), pos);
612 str += p.row->par()->getChar(pos);
614 unsigned char c = str[0];
615 str[0] = transformChar(c, p.row->par(), pos);
619 // collect as much similar chars as we can
620 while (vpos <= last && (pos = vis2log(vpos)) >= 0) {
621 char c = p.row->par()->getChar(pos);
623 if (!IsPrintableNonspace(c))
626 if (arabic && Encodings::IsComposeChar_arabic(c))
628 if (hebrew && Encodings::IsComposeChar_hebrew(c))
631 if (orig_font != getFont(p.bv->buffer(), p.row->par(), pos))
635 c = transformChar(c, p.row->par(), pos);
640 // Draw text and set the new x position
641 p.pain->text(int(p.x), p.yo + p.row->baseline(), str, orig_font);
642 p.x += font_metrics::width(str, orig_font);
646 bool LyXText::draw(DrawRowParams & p, pos_type & vpos)
648 pos_type const pos = vis2log(vpos);
649 Paragraph * par = p.row->par();
651 LyXFont const & orig_font = getFont(p.bv->buffer(), par, pos);
653 float const orig_x = p.x;
655 char const c = par->getChar(pos);
657 if (IsNewlineChar(c)) {
661 } else if (IsInsetChar(c)) {
662 if (!drawInset(p, pos))
665 drawForeignMark(p, orig_x, orig_font);
669 // usual characters, no insets
671 // special case languages
672 bool const hebrew = (orig_font.language()->lang() == "hebrew");
674 orig_font.language()->lang() == "arabic" &&
675 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
676 lyxrc.font_norm_type == LyXRC::ISO_10646_1);
678 // draw as many chars as we can
679 if ((!hebrew && !arabic)
680 || (hebrew && !Encodings::IsComposeChar_hebrew(c))
681 || (arabic && !Encodings::IsComposeChar_arabic(c))) {
682 drawChars(p, vpos, hebrew, arabic);
684 drawHebrewComposeChar(p, vpos);
686 drawArabicComposeChar(p, vpos);
689 drawForeignMark(p, orig_x, orig_font);
691 #ifdef INHERIT_LANGUAGE
693 if ((font.language() == inherit_language) ||
694 (font.language() == ignore_language))
695 lyxerr << "No this shouldn't happen!\n";
702 int LyXText::leftMargin(BufferView * bview, Row const * row) const
705 if ((row->par()->getChar(row->pos()) == Paragraph::META_INSET) &&
706 (ins=row->par()->getInset(row->pos())) &&
707 (ins->needFullRow() || ins->display()))
708 return LYX_PAPER_MARGIN;
710 LyXTextClass const & tclass =
711 bview->buffer()->params.getLyXTextClass();
712 LyXLayout_ptr const & layout = row->par()->layout();
714 string parindent = layout->parindent;
716 int x = LYX_PAPER_MARGIN;
718 x += font_metrics::signedWidth(tclass.leftmargin(), tclass.defaultfont());
720 // this is the way, LyX handles the LaTeX-Environments.
721 // I have had this idea very late, so it seems to be a
722 // later added hack and this is true
723 if (!row->par()->getDepth()) {
724 if (row->par()->layout() == tclass.defaultLayout()) {
725 // find the previous same level paragraph
726 if (row->par()->previous()) {
727 Paragraph * newpar = row->par()
728 ->depthHook(row->par()->getDepth());
730 newpar->layout()->nextnoindent)
735 // find the next level paragraph
738 row->par()->outerHook();
740 // make a corresponding row. Needed to call LeftMargin()
742 // check wether it is a sufficent paragraph
743 if (newpar && newpar->layout()->isEnvironment()) {
745 dummyrow.par(newpar);
746 dummyrow.pos(newpar->size());
747 x = leftMargin(bview, &dummyrow);
749 // this is no longer an error, because this function
750 // is used to clear impossible depths after changing
751 // a layout. Since there is always a redo,
752 // LeftMargin() is always called
753 row->par()->params().depth(0);
756 if (newpar && row->par()->layout() == tclass.defaultLayout()) {
757 if (newpar->params().noindent())
760 parindent = newpar->layout()->parindent;
766 LyXFont const labelfont = getLabelFont(bview->buffer(), row->par());
767 switch (layout->margintype) {
769 if (!layout->leftmargin.empty()) {
770 x += font_metrics::signedWidth(layout->leftmargin,
771 tclass.defaultfont());
773 if (!row->par()->getLabelstring().empty()) {
774 x += font_metrics::signedWidth(layout->labelindent,
776 x += font_metrics::width(row->par()->getLabelstring(),
778 x += font_metrics::width(layout->labelsep, labelfont);
782 x += font_metrics::signedWidth(layout->labelindent, labelfont);
783 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
784 if (!row->par()->getLabelWidthString().empty()) {
785 x += font_metrics::width(row->par()->getLabelWidthString(),
787 x += font_metrics::width(layout->labelsep, labelfont);
792 x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()) * 4
793 / (row->par()->getDepth() + 4);
795 case MARGIN_FIRST_DYNAMIC:
796 if (layout->labeltype == LABEL_MANUAL) {
797 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
798 x += font_metrics::signedWidth(layout->leftmargin,
801 x += font_metrics::signedWidth(layout->labelindent,
804 } else if (row->pos()
805 // Special case to fix problems with
807 || (layout->labeltype == LABEL_STATIC
808 && layout->latextype == LATEX_ENVIRONMENT
809 && ! row->par()->isFirstInSequence())) {
810 x += font_metrics::signedWidth(layout->leftmargin,
812 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
813 && layout->labeltype != LABEL_BIBLIO
814 && layout->labeltype !=
815 LABEL_CENTERED_TOP_ENVIRONMENT) {
816 x += font_metrics::signedWidth(layout->labelindent,
818 x += font_metrics::width(layout->labelsep, labelfont);
819 x += font_metrics::width(row->par()->getLabelstring(),
824 case MARGIN_RIGHT_ADDRESS_BOX:
826 // ok, a terrible hack. The left margin depends on the widest
827 // row in this paragraph. Do not care about footnotes, they
828 // are *NOT* allowed in the LaTeX realisation of this layout.
830 // find the first row of this paragraph
831 Row const * tmprow = row;
832 while (tmprow->previous()
833 && tmprow->previous()->par() == row->par())
834 tmprow = tmprow->previous();
836 int minfill = tmprow->fill();
837 while (tmprow->next() && tmprow->next()->par() == row->par()) {
838 tmprow = tmprow->next();
839 if (tmprow->fill() < minfill)
840 minfill = tmprow->fill();
843 x += font_metrics::signedWidth(layout->leftmargin,
844 tclass.defaultfont());
850 if ((workWidth(bview) > 0) &&
851 !row->par()->params().leftIndent().zero())
853 LyXLength const len = row->par()->params().leftIndent();
854 int const tw = inset_owner ?
855 inset_owner->latexTextWidth(bview) : workWidth(bview);
856 x += len.inPixels(tw, bview->text->defaultHeight());
859 LyXAlignment align; // wrong type
861 if (row->par()->params().align() == LYX_ALIGN_LAYOUT)
862 align = layout->align;
864 align = row->par()->params().align();
866 // set the correct parindent
867 if (row->pos() == 0) {
868 if ((layout->labeltype == LABEL_NO_LABEL
869 || layout->labeltype == LABEL_TOP_ENVIRONMENT
870 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
871 || (layout->labeltype == LABEL_STATIC
872 && layout->latextype == LATEX_ENVIRONMENT
873 && ! row->par()->isFirstInSequence()))
874 && align == LYX_ALIGN_BLOCK
875 && !row->par()->params().noindent()
876 // in tabulars and ert paragraphs are never indented!
877 && (!row->par()->inInset() || !row->par()->inInset()->owner() ||
878 (row->par()->inInset()->owner()->lyxCode() != Inset::TABULAR_CODE &&
879 row->par()->inInset()->owner()->lyxCode() != Inset::ERT_CODE))
880 && (row->par()->layout() != tclass.defaultLayout() ||
881 bview->buffer()->params.paragraph_separation ==
882 BufferParams::PARSEP_INDENT)) {
883 x += font_metrics::signedWidth(parindent,
884 tclass.defaultfont());
885 } else if (layout->labeltype == LABEL_BIBLIO) {
886 // ale970405 Right width for bibitems
887 x += bibitemMaxWidth(bview, tclass.defaultfont());
895 int LyXText::rightMargin(Buffer const * buf, Row const * row) const
898 if ((row->par()->getChar(row->pos()) == Paragraph::META_INSET) &&
899 (ins=row->par()->getInset(row->pos())) &&
900 (ins->needFullRow() || ins->display()))
901 return LYX_PAPER_MARGIN;
903 LyXTextClass const & tclass = buf->params.getLyXTextClass();
904 LyXLayout_ptr const & layout = row->par()->layout();
906 int x = LYX_PAPER_MARGIN
907 + font_metrics::signedWidth(tclass.rightmargin(),
908 tclass.defaultfont());
910 // this is the way, LyX handles the LaTeX-Environments.
911 // I have had this idea very late, so it seems to be a
912 // later added hack and this is true
913 if (row->par()->getDepth()) {
914 // find the next level paragraph
916 Paragraph * newpar = row->par();
919 newpar = newpar->previous();
921 && newpar->getDepth() >= row->par()->getDepth());
923 // make a corresponding row. Needed to call LeftMargin()
925 // check wether it is a sufficent paragraph
926 if (newpar && newpar->layout()->isEnvironment()) {
928 dummyrow.par(newpar);
930 x = rightMargin(buf, &dummyrow);
932 // this is no longer an error, because this function
933 // is used to clear impossible depths after changing
934 // a layout. Since there is always a redo,
935 // LeftMargin() is always called
936 row->par()->params().depth(0);
940 //lyxerr << "rightmargin: " << layout->rightmargin << endl;
941 x += font_metrics::signedWidth(layout->rightmargin,
942 tclass.defaultfont())
943 * 4 / (row->par()->getDepth() + 4);
948 int LyXText::labelEnd(BufferView * bview, Row const * row) const
950 if (row->par()->layout()->margintype == MARGIN_MANUAL) {
953 tmprow.pos(row->par()->size());
954 // just the beginning of the main body
955 return leftMargin(bview, &tmprow);
957 // LabelEnd is only needed,
958 // if the layout fills a flushleft label.
964 // get the next breakpoint in a given paragraph
966 LyXText::nextBreakPoint(BufferView * bview, Row const * row, int width) const
968 Paragraph * par = row->par();
973 pos_type const pos = row->pos();
975 // position of the last possible breakpoint
976 // -1 isn't a suitable value, but a flag
977 pos_type last_separator = -1;
978 width -= rightMargin(bview->buffer(), row);
980 pos_type const main_body =
981 beginningOfMainBody(bview->buffer(), par);
982 LyXLayout_ptr const & layout = par->layout();
986 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
987 // special code for right address boxes, only newlines count
988 while (i < par->size()) {
989 if (par->isNewline(i)) {
991 i = par->size() - 1; // this means break
993 } else if (par->isInset(i) && par->getInset(i)
994 && par->getInset(i)->display()) {
995 par->getInset(i)->display(false);
1000 // Last position is an invariant
1001 pos_type const last = par->size();
1002 // this is the usual handling
1003 int x = leftMargin(bview, row);
1004 bool doitonetime = true;
1005 while (doitonetime || ((x < width) && (i < last))) {
1006 doitonetime = false;
1007 char const c = par->getChar(i);
1009 if (c == Paragraph::META_INSET)
1010 in = par->getInset(i);
1011 if (IsNewlineChar(c)) {
1013 x = width; // this means break
1014 } else if (in && !in->isChar()) {
1015 // check wether a Display() inset is
1016 // valid here. if not, change it to
1018 if (in->display() &&
1019 (layout->isCommand() ||
1020 (layout->labeltype == LABEL_MANUAL
1021 && i < beginningOfMainBody(bview->buffer(), par))))
1023 // display istn't allowd
1025 x += singleWidth(bview, par, i, c);
1026 } else if (in->display() || in->needFullRow()) {
1027 // So break the line here
1031 if (par->isLineSeparator(i+1))
1034 last_separator = last; // to avoid extra rows
1036 last_separator = i - 1;
1037 x = width; // this means break
1039 x += singleWidth(bview, par, i, c);
1040 // we have to check this separately as we could have a
1041 // lineseparator and then the algorithm below would prefer
1042 // that which IS wrong! We should always break on an inset
1043 // if it's too long and not on the last separator.
1044 // Maybe the only exeption is insets used as chars but
1045 // then we would have to have a special function inside
1046 // the inset to tell us this. Till then we leave it as
1047 // it is now. (Jug 20020106)
1048 if (pos < i && x >= width && last_separator >= 0)
1049 last_separator = i - 1;
1052 if (par->isLineSeparator(i))
1054 x += singleWidth(bview, par, i, c);
1057 if (i == main_body) {
1058 x += font_metrics::width(layout->labelsep,
1059 getLabelFont(bview->buffer(), par));
1060 if (par->isLineSeparator(i - 1))
1061 x-= singleWidth(bview, par, i - 1);
1062 int left_margin = labelEnd(bview, row);
1063 if (x < left_margin)
1067 if ((pos+1 < i) && (last_separator < 0) && (x >= width))
1068 last_separator = i - 2;
1069 else if ((pos < i) && (last_separator < 0) && (x >= width))
1070 last_separator = i - 1;
1071 // end of paragraph is always a suitable separator
1072 else if (i == last && x < width)
1076 // well, if last_separator is still 0, the line isn't breakable.
1077 // don't care and cut simply at the end
1078 if (last_separator < 0) {
1082 // manual labels cannot be broken in LaTeX, do not care
1083 if (main_body && last_separator < main_body)
1084 last_separator = main_body - 1;
1086 return last_separator;
1090 // returns the minimum space a row needs on the screen in pixel
1091 int LyXText::fill(BufferView * bview, Row * row, int paper_width) const
1093 if (paper_width < 0)
1097 // get the pure distance
1098 pos_type const last = rowLastPrintable(row);
1100 // special handling of the right address boxes
1101 if (row->par()->layout()->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1102 int const tmpfill = row->fill();
1103 row->fill(0); // the minfill in MarginLeft()
1104 w = leftMargin(bview, row);
1107 w = leftMargin(bview, row);
1109 LyXLayout_ptr const & layout = row->par()->layout();
1111 pos_type const main_body =
1112 beginningOfMainBody(bview->buffer(), row->par());
1113 pos_type i = row->pos();
1116 if (main_body > 0 && i == main_body) {
1117 w += font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), row->par()));
1118 if (row->par()->isLineSeparator(i - 1))
1119 w -= singleWidth(bview, row->par(), i - 1);
1120 int left_margin = labelEnd(bview, row);
1121 if (w < left_margin)
1124 w += singleWidth(bview, row->par(), i);
1127 if (main_body > 0 && main_body > last) {
1128 w += font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), row->par()));
1129 if (last >= 0 && row->par()->isLineSeparator(last))
1130 w -= singleWidth(bview, row->par(), last);
1131 int const left_margin = labelEnd(bview, row);
1132 if (w < left_margin)
1136 int const fill = paper_width - w - rightMargin(bview->buffer(), row);
1141 // returns the minimum space a manual label needs on the screen in pixel
1142 int LyXText::labelFill(BufferView * bview, Row const * row) const
1144 pos_type last = beginningOfMainBody(bview->buffer(), row->par()) - 1;
1145 // -1 because a label ends either with a space that is in the label,
1146 // or with the beginning of a footnote that is outside the label.
1148 // I don't understand this code in depth, but sometimes "last" is
1149 // less than 0 and this causes a crash. This fix seems to work
1150 // correctly, but I bet the real error is elsewhere. The bug is
1151 // triggered when you have an open footnote in a paragraph
1152 // environment with a manual label. (Asger)
1153 if (last < 0) last = 0;
1155 // a separator at this end does not count
1156 if (row->par()->isLineSeparator(last))
1160 pos_type i = row->pos();
1162 w += singleWidth(bview, row->par(), i);
1167 if (!row->par()->params().labelWidthString().empty()) {
1168 fill = max(font_metrics::width(row->par()->params().labelWidthString(),
1169 getLabelFont(bview->buffer(), row->par())) - w,
1177 // returns the number of separators in the specified row. The separator
1178 // on the very last column doesnt count
1179 int LyXText::numberOfSeparators(Buffer const * buf, Row const * row) const
1181 pos_type last = rowLastPrintable(row);
1182 pos_type p = max(row->pos(), beginningOfMainBody(buf, row->par()));
1185 for (; p <= last; ++p) {
1186 if (row->par()->isSeparator(p)) {
1194 // returns the number of hfills in the specified row. The LyX-Hfill is
1195 // a LaTeX \hfill so that the hfills at the beginning and at the end were
1196 // ignored. This is *MUCH* more usefull than not to ignore!
1197 int LyXText::numberOfHfills(Buffer const * buf, Row const * row) const
1199 pos_type const last = rowLast(row);
1200 pos_type first = row->pos();
1203 // hfill *DO* count at the beginning of paragraphs!
1204 while (first <= last && row->par()->isHfill(first)) {
1209 first = max(first, beginningOfMainBody(buf, row->par()));
1211 for (pos_type p = first; p <= last; ++p) {
1212 // last, because the end is ignored!
1214 if (row->par()->isHfill(p)) {
1222 // like NumberOfHfills, but only those in the manual label!
1223 int LyXText::numberOfLabelHfills(Buffer const * buf, Row const * row) const
1225 pos_type last = rowLast(row);
1226 pos_type first = row->pos();
1228 // hfill *DO* count at the beginning of paragraphs!
1229 while (first < last && row->par()->isHfill(first))
1233 last = min(last, beginningOfMainBody(buf, row->par()));
1235 for (pos_type p = first; p < last; ++p) {
1236 // last, because the end is ignored!
1237 if (row->par()->isHfill(p)) {
1245 // returns true, if a expansion is needed.
1246 // Rules are given by LaTeX
1247 bool LyXText::hfillExpansion(Buffer const * buf, Row const * row_ptr,
1250 // by the way, is it a hfill?
1251 if (!row_ptr->par()->isHfill(pos))
1254 // at the end of a row it does not count
1255 // unless another hfill exists on the line
1256 if (pos >= rowLast(row_ptr)) {
1257 pos_type i = row_ptr->pos();
1258 while (i < pos && !row_ptr->par()->isHfill(i)) {
1266 // at the beginning of a row it does not count, if it is not
1267 // the first row of a paragaph
1268 if (!row_ptr->pos())
1271 // in some labels it does not count
1272 if (row_ptr->par()->layout()->margintype != MARGIN_MANUAL
1273 && pos < beginningOfMainBody(buf, row_ptr->par()))
1276 // if there is anything between the first char of the row and
1277 // the sepcified position that is not a newline and not a hfill,
1278 // the hfill will count, otherwise not
1279 pos_type i = row_ptr->pos();
1280 while (i < pos && (row_ptr->par()->isNewline(i)
1281 || row_ptr->par()->isHfill(i)))
1288 LColor::color LyXText::backgroundColor()
1291 return inset_owner->backgroundColor();
1293 return LColor::background;
1296 void LyXText::setHeightOfRow(BufferView * bview, Row * row_ptr) const
1298 // get the maximum ascent and the maximum descent
1301 float layoutasc = 0;
1302 float layoutdesc = 0;
1305 Inset * tmpinset = 0;
1307 // ok , let us initialize the maxasc and maxdesc value.
1308 // This depends in LaTeX of the font of the last character
1309 // in the paragraph. The hack below is necessary because
1310 // of the possibility of open footnotes
1312 // Correction: only the fontsize count. The other properties
1313 // are taken from the layoutfont. Nicer on the screen :)
1314 Paragraph * par = row_ptr->par();
1315 Paragraph * firstpar = row_ptr->par();
1317 LyXLayout_ptr const & layout = firstpar->layout();
1319 // as max get the first character of this row then it can increes but not
1320 // decrees the height. Just some point to start with so we don't have to
1321 // do the assignment below too often.
1322 LyXFont font = getFont(bview->buffer(), par, row_ptr->pos());
1323 LyXFont::FONT_SIZE const tmpsize = font.size();
1324 font = getLayoutFont(bview->buffer(), par);
1325 LyXFont::FONT_SIZE const size = font.size();
1326 font.setSize(tmpsize);
1328 LyXFont labelfont = getLabelFont(bview->buffer(), par);
1330 float spacing_val = 1.0;
1331 if (!row_ptr->par()->params().spacing().isDefault()) {
1332 spacing_val = row_ptr->par()->params().spacing().getValue();
1334 spacing_val = bview->buffer()->params.spacing.getValue();
1336 //lyxerr << "spacing_val = " << spacing_val << endl;
1338 int maxasc = int(font_metrics::maxAscent(font) *
1339 layout->spacing.getValue() *
1341 int maxdesc = int(font_metrics::maxDescent(font) *
1342 layout->spacing.getValue() *
1345 pos_type const pos_end = rowLast(row_ptr);
1349 // Check if any insets are larger
1350 for (pos_type pos = row_ptr->pos(); pos <= pos_end; ++pos) {
1351 if (row_ptr->par()->isInset(pos)) {
1352 tmpfont = getFont(bview->buffer(), row_ptr->par(), pos);
1353 tmpinset = row_ptr->par()->getInset(pos);
1355 #if 1 // this is needed for deep update on initialitation
1356 tmpinset->update(bview, tmpfont);
1358 asc = tmpinset->ascent(bview, tmpfont);
1359 desc = tmpinset->descent(bview, tmpfont);
1360 maxwidth += tmpinset->width(bview, tmpfont);
1361 maxasc = max(maxasc, asc);
1362 maxdesc = max(maxdesc, desc);
1365 maxwidth += singleWidth(bview, row_ptr->par(), pos);
1369 // Check if any custom fonts are larger (Asger)
1370 // This is not completely correct, but we can live with the small,
1371 // cosmetic error for now.
1372 LyXFont::FONT_SIZE maxsize =
1373 row_ptr->par()->highestFontInRange(row_ptr->pos(), pos_end, size);
1374 if (maxsize > font.size()) {
1375 font.setSize(maxsize);
1377 asc = font_metrics::maxAscent(font);
1378 desc = font_metrics::maxDescent(font);
1385 // This is nicer with box insets:
1389 row_ptr->ascent_of_text(maxasc);
1391 // is it a top line?
1392 if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
1394 // some parksips VERY EASY IMPLEMENTATION
1395 if (bview->buffer()->params.paragraph_separation ==
1396 BufferParams::PARSEP_SKIP)
1398 if (layout->isParagraph()
1399 && firstpar->getDepth() == 0
1400 && firstpar->previous())
1402 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1403 } else if (firstpar->previous() &&
1404 firstpar->previous()->layout()->isParagraph() &&
1405 firstpar->previous()->getDepth() == 0)
1407 // is it right to use defskip here too? (AS)
1408 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1412 // the paper margins
1413 if (!row_ptr->par()->previous() && bv_owner)
1414 maxasc += LYX_PAPER_MARGIN;
1416 // add the vertical spaces, that the user added
1417 maxasc += getLengthMarkerHeight(bview, firstpar->params().spaceTop());
1419 // do not forget the DTP-lines!
1420 // there height depends on the font of the nearest character
1421 if (firstpar->params().lineTop())
1423 maxasc += 2 * font_metrics::ascent('x', getFont(bview->buffer(),
1425 // and now the pagebreaks
1426 if (firstpar->params().pagebreakTop())
1427 maxasc += 3 * defaultHeight();
1429 // This is special code for the chapter, since the label of this
1430 // layout is printed in an extra row
1431 if (layout->labeltype == LABEL_COUNTER_CHAPTER
1432 && bview->buffer()->params.secnumdepth >= 0)
1434 float spacing_val = 1.0;
1435 if (!row_ptr->par()->params().spacing().isDefault()) {
1436 spacing_val = row_ptr->par()->params().spacing().getValue();
1438 spacing_val = bview->buffer()->params.spacing.getValue();
1441 labeladdon = int(font_metrics::maxDescent(labelfont) *
1442 layout->spacing.getValue() *
1444 + int(font_metrics::maxAscent(labelfont) *
1445 layout->spacing.getValue() *
1449 // special code for the top label
1450 if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
1451 || layout->labeltype == LABEL_BIBLIO
1452 || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1453 && row_ptr->par()->isFirstInSequence()
1454 && !row_ptr->par()->getLabelstring().empty())
1456 float spacing_val = 1.0;
1457 if (!row_ptr->par()->params().spacing().isDefault()) {
1458 spacing_val = row_ptr->par()->params().spacing().getValue();
1460 spacing_val = bview->buffer()->params.spacing.getValue();
1464 (font_metrics::maxAscent(labelfont) *
1465 layout->spacing.getValue() *
1467 +(font_metrics::maxDescent(labelfont) *
1468 layout->spacing.getValue() *
1470 + layout->topsep * defaultHeight()
1471 + layout->labelbottomsep * defaultHeight());
1474 // and now the layout spaces, for example before and after a section,
1475 // or between the items of a itemize or enumerate environment
1477 if (!firstpar->params().pagebreakTop()) {
1478 Paragraph * prev = row_ptr->par()->previous();
1480 prev = row_ptr->par()->depthHook(row_ptr->par()->getDepth());
1481 if (prev && prev->layout() == firstpar->layout() &&
1482 prev->getDepth() == firstpar->getDepth() &&
1483 prev->getLabelWidthString() == firstpar->getLabelWidthString())
1485 layoutasc = (layout->itemsep * defaultHeight());
1486 } else if (row_ptr->previous()) {
1487 tmptop = layout->topsep;
1489 if (row_ptr->previous()->par()->getDepth() >= row_ptr->par()->getDepth())
1490 tmptop -= row_ptr->previous()->par()->layout()->bottomsep;
1493 layoutasc = (tmptop * defaultHeight());
1494 } else if (row_ptr->par()->params().lineTop()) {
1495 tmptop = layout->topsep;
1498 layoutasc = (tmptop * defaultHeight());
1501 prev = row_ptr->par()->outerHook();
1503 maxasc += int(prev->layout()->parsep * defaultHeight());
1505 if (firstpar->previous() &&
1506 firstpar->previous()->getDepth() == 0 &&
1507 firstpar->previous()->layout() !=
1511 } else if (firstpar->previous()) {
1512 maxasc += int(layout->parsep * defaultHeight());
1518 // is it a bottom line?
1519 if (row_ptr->par() == par
1520 && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par()))
1522 // the paper margins
1523 if (!par->next() && bv_owner)
1524 maxdesc += LYX_PAPER_MARGIN;
1526 // add the vertical spaces, that the user added
1527 maxdesc += getLengthMarkerHeight(bview, firstpar->params().spaceBottom());
1529 // do not forget the DTP-lines!
1530 // there height depends on the font of the nearest character
1531 if (firstpar->params().lineBottom())
1532 maxdesc += 2 * font_metrics::ascent('x',
1533 getFont(bview->buffer(),
1535 max(pos_type(0), par->size() - 1)));
1537 // and now the pagebreaks
1538 if (firstpar->params().pagebreakBottom())
1539 maxdesc += 3 * defaultHeight();
1541 // and now the layout spaces, for example before and after
1542 // a section, or between the items of a itemize or enumerate
1544 if (!firstpar->params().pagebreakBottom()
1545 && row_ptr->par()->next()) {
1546 Paragraph * nextpar = row_ptr->par()->next();
1547 Paragraph * comparepar = row_ptr->par();
1551 if (comparepar->getDepth() > nextpar->getDepth()) {
1552 usual = (comparepar->layout()->bottomsep * defaultHeight());
1553 comparepar = comparepar->depthHook(nextpar->getDepth());
1554 if (comparepar->layout()!= nextpar->layout()
1555 || nextpar->getLabelWidthString() !=
1556 comparepar->getLabelWidthString())
1558 unusual = (comparepar->layout()->bottomsep * defaultHeight());
1560 if (unusual > usual)
1561 layoutdesc = unusual;
1564 } else if (comparepar->getDepth() == nextpar->getDepth()) {
1566 if (comparepar->layout() != nextpar->layout()
1567 || nextpar->getLabelWidthString() !=
1568 comparepar->getLabelWidthString())
1569 layoutdesc = int(comparepar->layout()->bottomsep * defaultHeight());
1574 // incalculate the layout spaces
1575 maxasc += int(layoutasc * 2 / (2 + firstpar->getDepth()));
1576 maxdesc += int(layoutdesc * 2 / (2 + firstpar->getDepth()));
1578 // calculate the new height of the text
1579 height -= row_ptr->height();
1581 row_ptr->height(maxasc + maxdesc + labeladdon);
1582 row_ptr->baseline(maxasc + labeladdon);
1584 height += row_ptr->height();
1586 if (layout->margintype != MARGIN_RIGHT_ADDRESS_BOX) {
1589 row_ptr->width(maxwidth);
1590 prepareToPrint(bview, row_ptr, x, dummy, dummy, dummy, false);
1592 row_ptr->width(int(maxwidth + x));
1595 width = max(0,workWidth(bview));
1597 if (r->width() > width)
1605 // Appends the implicit specified paragraph behind the specified row,
1606 // start at the implicit given position
1607 void LyXText::appendParagraph(BufferView * bview, Row * row) const
1609 bool not_ready = true;
1611 // The last character position of a paragraph is an invariant so we can
1612 // safely get it here. (Asger)
1613 pos_type const lastposition = row->par()->size();
1615 // Get the next breakpoint
1616 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1620 // Insert the new row
1621 if (z < lastposition) {
1623 insertRow(row, row->par(), z);
1630 // Set the dimensions of the row
1631 // fixed fill setting now by calling inset->update() in
1632 // SingleWidth when needed!
1633 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1634 setHeightOfRow(bview, tmprow);
1636 } while (not_ready);
1640 void LyXText::breakAgain(BufferView * bview, Row * row) const
1642 bool not_ready = true;
1645 // get the next breakpoint
1646 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1649 if (z < row->par()->size()) {
1650 if (!row->next() || (row->next() && row->next()->par() != row->par())) {
1653 insertRow(row, row->par(), z);
1659 if (row->pos() == z)
1660 not_ready = false; // the rest will not change
1666 // if there are some rows too much, delete them
1667 // only if you broke the whole paragraph!
1668 Row * tmprow2 = row;
1669 while (tmprow2->next() && tmprow2->next()->par() == row->par()) {
1670 tmprow2 = tmprow2->next();
1672 while (tmprow2 != row) {
1673 tmprow2 = tmprow2->previous();
1674 removeRow(tmprow2->next());
1679 // set the dimensions of the row
1680 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1681 setHeightOfRow(bview, tmprow);
1682 } while (not_ready);
1686 // this is just a little changed version of break again
1687 void LyXText::breakAgainOneRow(BufferView * bview, Row * row)
1689 // get the next breakpoint
1690 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1693 if (z < row->par()->size()) {
1695 || (row->next() && row->next()->par() != row->par())) {
1698 insertRow(row, row->par(), z);
1704 if (row->pos() != z)
1708 // if there are some rows too much, delete them
1709 // only if you broke the whole paragraph!
1710 Row * tmprow2 = row;
1711 while (tmprow2->next()
1712 && tmprow2->next()->par() == row->par()) {
1713 tmprow2 = tmprow2->next();
1715 while (tmprow2 != row) {
1716 tmprow2 = tmprow2->previous();
1717 removeRow(tmprow2->next());
1721 // set the dimensions of the row
1722 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1723 setHeightOfRow(bview, tmprow);
1727 void LyXText::breakParagraph(BufferView * bview, char keep_layout)
1729 LyXTextClass const & tclass =
1730 bview->buffer()->params.getLyXTextClass();
1731 LyXLayout_ptr const & layout = cursor.par()->layout();
1733 // this is only allowed, if the current paragraph is not empty or caption
1734 // and if it has not the keepempty flag aktive
1735 if (cursor.par()->empty()
1736 && layout->labeltype != LABEL_SENSITIVE
1737 && !layout->keepempty)
1740 setUndo(bview, Undo::FINISH, cursor.par(), cursor.par()->next());
1742 // Always break behind a space
1744 // It is better to erase the space (Dekel)
1745 if (cursor.pos() < cursor.par()->size()
1746 && cursor.par()->isLineSeparator(cursor.pos()))
1747 cursor.par()->erase(cursor.pos());
1748 // cursor.pos(cursor.pos() + 1);
1750 // break the paragraph
1754 keep_layout = layout->isEnvironment();
1756 // we need to set this before we insert the paragraph. IMO the
1757 // breakParagraph call should return a bool if it inserts the
1758 // paragraph before or behind and we should react on that one
1759 // but we can fix this in 1.3.0 (Jug 20020509)
1760 bool const isempty = (layout->keepempty && cursor.par()->empty());
1761 cursor.par()->breakParagraph(bview->buffer()->params, cursor.pos(),
1764 // well this is the caption hack since one caption is really enough
1765 if (layout->labeltype == LABEL_SENSITIVE) {
1767 // set to standard-layout
1768 cursor.par()->applyLayout(tclass.defaultLayout());
1770 // set to standard-layout
1771 cursor.par()->next()->applyLayout(tclass.defaultLayout());
1774 // if the cursor is at the beginning of a row without prior newline,
1776 // This touches only the screen-update. Otherwise we would may have
1777 // an empty row on the screen
1778 if (cursor.pos() && !cursor.row()->par()->isNewline(cursor.row()->pos() - 1)
1779 && cursor.row()->pos() == cursor.pos())
1784 status(bview, LyXText::NEED_MORE_REFRESH);
1785 refresh_row = cursor.row();
1786 refresh_y = cursor.y() - cursor.row()->baseline();
1788 // Do not forget the special right address boxes
1789 if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1790 while (refresh_row->previous() &&
1791 refresh_row->previous()->par() == refresh_row->par())
1793 refresh_row = refresh_row->previous();
1794 refresh_y -= refresh_row->height();
1797 removeParagraph(cursor.row());
1799 // set the dimensions of the cursor row
1800 cursor.row()->fill(fill(bview, cursor.row(), workWidth(bview)));
1802 setHeightOfRow(bview, cursor.row());
1804 while (!cursor.par()->next()->empty()
1805 && cursor.par()->next()->isNewline(0))
1806 cursor.par()->next()->erase(0);
1808 insertParagraph(bview, cursor.par()->next(), cursor.row());
1810 updateCounters(bview);
1812 // This check is necessary. Otherwise the new empty paragraph will
1813 // be deleted automatically. And it is more friendly for the user!
1814 if (cursor.pos() || isempty)
1815 setCursor(bview, cursor.par()->next(), 0);
1817 setCursor(bview, cursor.par(), 0);
1819 if (cursor.row()->next())
1820 breakAgain(bview, cursor.row()->next());
1826 // Just a macro to make some thing easier.
1827 void LyXText::redoParagraph(BufferView * bview) const
1830 redoParagraphs(bview, cursor, cursor.par()->next());
1831 setCursorIntern(bview, cursor.par(), cursor.pos());
1835 // insert a character, moves all the following breaks in the
1836 // same Paragraph one to the right and make a rebreak
1837 void LyXText::insertChar(BufferView * bview, char c)
1839 setUndo(bview, Undo::INSERT, cursor.par(), cursor.par()->next());
1841 // When the free-spacing option is set for the current layout,
1842 // disable the double-space checking
1844 bool const freeSpacing = cursor.row()->par()->layout()->free_spacing ||
1845 cursor.row()->par()->isFreeSpacing();
1847 if (lyxrc.auto_number) {
1848 static string const number_operators = "+-/*";
1849 static string const number_unary_operators = "+-";
1850 static string const number_seperators = ".,:";
1852 if (current_font.number() == LyXFont::ON) {
1853 if (!IsDigit(c) && !contains(number_operators, c) &&
1854 !(contains(number_seperators, c) &&
1855 cursor.pos() >= 1 &&
1856 cursor.pos() < cursor.par()->size() &&
1857 getFont(bview->buffer(),
1859 cursor.pos()).number() == LyXFont::ON &&
1860 getFont(bview->buffer(),
1862 cursor.pos() - 1).number() == LyXFont::ON)
1864 number(bview); // Set current_font.number to OFF
1865 } else if (IsDigit(c) &&
1866 real_current_font.isVisibleRightToLeft()) {
1867 number(bview); // Set current_font.number to ON
1869 if (cursor.pos() > 0) {
1870 char const c = cursor.par()->getChar(cursor.pos() - 1);
1871 if (contains(number_unary_operators, c) &&
1872 (cursor.pos() == 1 ||
1873 cursor.par()->isSeparator(cursor.pos() - 2) ||
1874 cursor.par()->isNewline(cursor.pos() - 2))
1876 setCharFont(bview->buffer(),
1880 } else if (contains(number_seperators, c) &&
1881 cursor.pos() >= 2 &&
1882 getFont(bview->buffer(),
1884 cursor.pos() - 2).number() == LyXFont::ON) {
1885 setCharFont(bview->buffer(),
1895 // First check, if there will be two blanks together or a blank at
1896 // the beginning of a paragraph.
1897 // I decided to handle blanks like normal characters, the main
1898 // difference are the special checks when calculating the row.fill
1899 // (blank does not count at the end of a row) and the check here
1901 // The bug is triggered when we type in a description environment:
1902 // The current_font is not changed when we go from label to main text
1903 // and it should (along with realtmpfont) when we type the space.
1904 // CHECK There is a bug here! (Asger)
1906 LyXFont realtmpfont = real_current_font;
1907 LyXFont rawtmpfont = current_font;
1908 // store the current font. This is because of the use of cursor
1909 // movements. The moving cursor would refresh the current font
1911 // Get the font that is used to calculate the baselineskip
1912 pos_type const lastpos = cursor.par()->size();
1913 LyXFont rawparfont =
1914 cursor.par()->getFontSettings(bview->buffer()->params,
1917 bool jumped_over_space = false;
1919 if (!freeSpacing && IsLineSeparatorChar(c)) {
1920 if ((cursor.pos() > 0
1921 && cursor.par()->isLineSeparator(cursor.pos() - 1))
1922 || (cursor.pos() > 0
1923 && cursor.par()->isNewline(cursor.pos() - 1))
1924 || (cursor.pos() == 0)) {
1925 static bool sent_space_message = false;
1926 if (!sent_space_message) {
1927 if (cursor.pos() == 0)
1928 bview->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1930 bview->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1931 sent_space_message = true;
1936 } else if (IsNewlineChar(c)) {
1937 if (cursor.pos() <= beginningOfMainBody(bview->buffer(),
1943 // No newline at first position of a paragraph or behind labels.
1944 // TeX does not allow that
1946 if (cursor.pos() < cursor.par()->size() &&
1947 cursor.par()->isLineSeparator(cursor.pos()))
1948 // newline always after a blank!
1950 cursor.row()->fill(-1); // to force a new break
1953 // the display inset stuff
1954 if (cursor.row()->par()->isInset(cursor.row()->pos())) {
1955 Inset * inset = cursor.row()->par()->getInset(cursor.row()->pos());
1956 if (inset && (inset->display() || inset->needFullRow())) {
1957 // force a new break
1958 cursor.row()->fill(-1); // to force a new break
1962 // get the cursor row fist
1963 Row * row = cursor.row();
1964 int y = cursor.y() - row->baseline();
1965 if (c != Paragraph::META_INSET) {
1966 // Here case LyXText::InsertInset already insertet the character
1967 cursor.par()->insertChar(cursor.pos(), c);
1969 setCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont);
1971 if (!jumped_over_space) {
1972 // refresh the positions
1974 while (tmprow->next() && tmprow->next()->par() == row->par()) {
1975 tmprow = tmprow->next();
1976 tmprow->pos(tmprow->pos() + 1);
1980 // Is there a break one row above
1981 if (row->previous() && row->previous()->par() == row->par()
1982 && (cursor.par()->isLineSeparator(cursor.pos())
1983 || cursor.par()->isNewline(cursor.pos())
1984 || ((cursor.pos() < cursor.par()->size()) &&
1985 cursor.par()->isInset(cursor.pos()+1))
1986 || cursor.row()->fill() == -1))
1988 pos_type z = nextBreakPoint(bview,
1991 if (z >= row->pos()) {
1994 // set the dimensions of the row above
1995 row->previous()->fill(fill(bview,
1999 setHeightOfRow(bview, row->previous());
2001 y -= row->previous()->height();
2003 refresh_row = row->previous();
2004 status(bview, LyXText::NEED_MORE_REFRESH);
2006 breakAgainOneRow(bview, row);
2008 current_font = rawtmpfont;
2009 real_current_font = realtmpfont;
2010 setCursor(bview, cursor.par(), cursor.pos() + 1,
2011 false, cursor.boundary());
2012 // cursor MUST be in row now.
2014 if (row->next() && row->next()->par() == row->par())
2015 need_break_row = row->next();
2019 // check, wether the last characters font has changed.
2020 if (cursor.pos() && cursor.pos() == cursor.par()->size()
2021 && rawparfont != rawtmpfont)
2022 redoHeightOfParagraph(bview, cursor);
2029 // recalculate the fill of the row
2030 if (row->fill() >= 0) {
2031 // needed because a newline will set fill to -1. Otherwise
2032 // we would not get a rebreak!
2033 row->fill(fill(bview, row, workWidth(bview)));
2035 if (c == Paragraph::META_INSET || row->fill() < 0) {
2038 refresh_x = cursor.x();
2039 refresh_pos = cursor.pos();
2040 status(bview, LyXText::NEED_MORE_REFRESH);
2041 breakAgainOneRow(bview, row);
2042 // will the cursor be in another row now?
2043 if (rowLast(row) <= cursor.pos() + 1 && row->next()) {
2044 if (row->next() && row->next()->par() == row->par())
2045 // this should always be true
2047 breakAgainOneRow(bview, row);
2049 current_font = rawtmpfont;
2050 real_current_font = realtmpfont;
2052 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2054 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
2055 != cursor.boundary())
2056 setCursor(bview, cursor.par(), cursor.pos(), false,
2057 !cursor.boundary());
2058 if (row->next() && row->next()->par() == row->par())
2059 need_break_row = row->next();
2064 refresh_x = cursor.x();
2066 refresh_pos = cursor.pos();
2068 int const tmpheight = row->height();
2069 setHeightOfRow(bview, row);
2070 if (tmpheight == row->height())
2071 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
2073 status(bview, LyXText::NEED_MORE_REFRESH);
2075 current_font = rawtmpfont;
2076 real_current_font = realtmpfont;
2077 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2081 // check, wether the last characters font has changed.
2082 if (cursor.pos() && cursor.pos() == cursor.par()->size()
2083 && rawparfont != rawtmpfont) {
2084 redoHeightOfParagraph(bview, cursor);
2086 // now the special right address boxes
2087 if (cursor.par()->layout()->margintype
2088 == MARGIN_RIGHT_ADDRESS_BOX) {
2089 redoDrawingOfParagraph(bview, cursor);
2097 void LyXText::charInserted()
2099 // Here we could call FinishUndo for every 20 characters inserted.
2100 // This is from my experience how emacs does it.
2101 static unsigned int counter;
2111 void LyXText::prepareToPrint(BufferView * bview,
2112 Row * row, float & x,
2113 float & fill_separator,
2115 float & fill_label_hfill,
2121 float w = row->fill();
2123 fill_label_hfill = 0;
2125 fill_label_hfill = 0;
2128 row->par()->isRightToLeftPar(bview->buffer()->params);
2130 x = (workWidth(bview) > 0)
2131 ? rightMargin(bview->buffer(), row) : 0;
2133 x = (workWidth(bview) > 0)
2134 ? leftMargin(bview, row) : 0;
2136 // is there a manual margin with a manual label
2137 LyXLayout_ptr const & layout = row->par()->layout();
2139 if (layout->margintype == MARGIN_MANUAL
2140 && layout->labeltype == LABEL_MANUAL) {
2141 // one more since labels are left aligned
2142 nlh = numberOfLabelHfills(bview->buffer(), row) + 1;
2143 if (nlh && !row->par()->getLabelWidthString().empty()) {
2144 fill_label_hfill = labelFill(bview, row) / nlh;
2148 // are there any hfills in the row?
2149 float const nh = numberOfHfills(bview->buffer(), row);
2153 fill_hfill = w / nh;
2154 // we don't have to look at the alignment if it is ALIGN_LEFT and
2155 // if the row is already larger then the permitted width as then
2156 // we force the LEFT_ALIGN'edness!
2157 } else if (static_cast<int>(row->width()) < workWidth(bview)) {
2158 // is it block, flushleft or flushright?
2159 // set x how you need it
2161 if (row->par()->params().align() == LYX_ALIGN_LAYOUT) {
2162 align = layout->align;
2164 align = row->par()->params().align();
2167 // center displayed insets
2169 if (row->par()->isInset(row->pos())
2170 && (inset=row->par()->getInset(row->pos()))
2171 && (inset->display())) // || (inset->scroll() < 0)))
2172 align = (inset->lyxCode() == Inset::MATHMACRO_CODE)
2173 ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER;
2174 // ERT insets should always be LEFT ALIGNED on screen
2175 inset = row->par()->inInset();
2176 if (inset && inset->owner() &&
2177 inset->owner()->lyxCode() == Inset::ERT_CODE)
2179 align = LYX_ALIGN_LEFT;
2183 case LYX_ALIGN_BLOCK:
2184 ns = numberOfSeparators(bview->buffer(), row);
2185 if (ns && row->next() && row->next()->par() == row->par() &&
2186 !(row->next()->par()->isNewline(row->next()->pos() - 1))
2187 && !(row->next()->par()->isInset(row->next()->pos())
2188 && row->next()->par()->getInset(row->next()->pos())
2189 && row->next()->par()->getInset(row->next()->pos())->display())
2192 fill_separator = w / ns;
2193 } else if (is_rtl) {
2197 case LYX_ALIGN_RIGHT:
2200 case LYX_ALIGN_CENTER:
2208 computeBidiTables(bview->buffer(), row);
2210 pos_type main_body =
2211 beginningOfMainBody(bview->buffer(), row->par());
2212 pos_type last = rowLast(row);
2214 if (main_body > 0 &&
2215 (main_body - 1 > last ||
2216 !row->par()->isLineSeparator(main_body - 1))) {
2217 x += font_metrics::width(layout->labelsep,
2218 getLabelFont(bview->buffer(), row->par()));
2219 if (main_body - 1 <= last)
2220 x += fill_label_hfill;
2226 // important for the screen
2229 // the cursor set functions have a special mechanism. When they
2230 // realize, that you left an empty paragraph, they will delete it.
2231 // They also delete the corresponding row
2233 void LyXText::cursorRightOneWord(BufferView * bview) const
2235 // treat floats, HFills and Insets as words
2236 LyXCursor tmpcursor = cursor;
2237 // CHECK See comment on top of text.C
2239 if (tmpcursor.pos() == tmpcursor.par()->size()
2240 && tmpcursor.par()->next()) {
2241 tmpcursor.par(tmpcursor.par()->next());
2246 // Skip through initial nonword stuff.
2247 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2248 ! tmpcursor.par()->isWord(tmpcursor.pos())) {
2249 // printf("Current pos1 %d", tmpcursor.pos()) ;
2250 tmpcursor.pos(tmpcursor.pos() + 1);
2253 // Advance through word.
2254 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2255 tmpcursor.par()->isWord(tmpcursor.pos())) {
2256 // printf("Current pos2 %d", tmpcursor.pos()) ;
2257 tmpcursor.pos(tmpcursor.pos() + 1);
2261 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2265 void LyXText::cursorTab(BufferView * bview) const
2267 LyXCursor tmpcursor = cursor;
2268 while (tmpcursor.pos() < tmpcursor.par()->size()
2269 && !tmpcursor.par()->isNewline(tmpcursor.pos()))
2270 tmpcursor.pos(tmpcursor.pos() + 1);
2272 if (tmpcursor.pos() == tmpcursor.par()->size()) {
2273 if (tmpcursor.par()->next()) {
2274 tmpcursor.par(tmpcursor.par()->next());
2278 tmpcursor.pos(tmpcursor.pos() + 1);
2279 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2283 // Skip initial whitespace at end of word and move cursor to *start*
2284 // of prior word, not to end of next prior word.
2285 void LyXText::cursorLeftOneWord(BufferView * bview) const
2287 LyXCursor tmpcursor = cursor;
2288 cursorLeftOneWord(tmpcursor);
2289 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2293 void LyXText::cursorLeftOneWord(LyXCursor & cur) const
2295 // treat HFills, floats and Insets as words
2298 && (cur.par()->isSeparator(cur.pos() - 1)
2299 || cur.par()->isKomma(cur.pos() - 1))
2300 && !(cur.par()->isHfill(cur.pos() - 1)
2301 || cur.par()->isInset(cur.pos() - 1)))
2302 cur.pos(cur.pos() - 1);
2305 && (cur.par()->isInset(cur.pos() - 1)
2306 || cur.par()->isHfill(cur.pos() - 1))) {
2307 cur.pos(cur.pos() - 1);
2308 } else if (!cur.pos()) {
2309 if (cur.par()->previous()) {
2310 cur.par(cur.par()->previous());
2311 cur.pos(cur.par()->size());
2313 } else { // Here, cur != 0
2314 while (cur.pos() > 0 &&
2315 cur.par()->isWord(cur.pos()-1))
2316 cur.pos(cur.pos() - 1);
2321 // Select current word. This depends on behaviour of
2322 // CursorLeftOneWord(), so it is patched as well.
2323 void LyXText::getWord(LyXCursor & from, LyXCursor & to,
2324 word_location const loc) const
2326 // first put the cursor where we wana start to select the word
2329 case WHOLE_WORD_STRICT:
2330 if (cursor.pos() == 0 || cursor.pos() == cursor.par()->size()
2331 || cursor.par()->isSeparator(cursor.pos())
2332 || cursor.par()->isKomma(cursor.pos())
2333 || cursor.par()->isSeparator(cursor.pos() -1)
2334 || cursor.par()->isKomma(cursor.pos() -1)) {
2338 // no break here, we go to the next
2341 // Move cursor to the beginning, when not already there.
2342 if (from.pos() && !from.par()->isSeparator(from.pos() - 1)
2343 && !from.par()->isKomma(from.pos() - 1))
2344 cursorLeftOneWord(from);
2347 // always move the cursor to the beginning of previous word
2348 cursorLeftOneWord(from);
2351 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet\n";
2357 while (to.pos() < to.par()->size()
2358 && !to.par()->isSeparator(to.pos())
2359 && !to.par()->isKomma(to.pos())
2360 && !to.par()->isHfill(to.pos())
2361 && !to.par()->isInset(to.pos()))
2363 to.pos(to.pos() + 1);
2368 void LyXText::selectWord(BufferView * bview, word_location const loc)
2372 getWord(from, to, loc);
2374 setCursor(bview, from.par(), from.pos());
2377 selection.cursor = cursor;
2378 setCursor(bview, to.par(), to.pos());
2379 setSelection(bview);
2383 // Select the word currently under the cursor when no
2384 // selection is currently set
2385 bool LyXText::selectWordWhenUnderCursor(BufferView * bview,
2386 word_location const loc)
2388 if (!selection.set()) {
2389 selectWord(bview, loc);
2390 return selection.set();
2396 // This function is only used by the spellchecker for NextWord().
2397 // It doesn't handle LYX_ACCENTs and probably never will.
2399 LyXText::selectNextWordToSpellcheck(BufferView * bview, float & value) const
2401 if (the_locking_inset) {
2402 WordLangTuple word = the_locking_inset->selectNextWordToSpellcheck(bview, value);
2403 if (!word.word().empty()) {
2404 value += float(cursor.y())/float(height);
2407 // we have to go on checking so move cursor to the next char
2408 if (cursor.pos() == cursor.par()->size()) {
2409 if (!cursor.par()->next())
2411 cursor.par(cursor.par()->next());
2414 cursor.pos(cursor.pos() + 1);
2416 Paragraph * tmppar = cursor.par();
2418 // If this is not the very first word, skip rest of
2419 // current word because we are probably in the middle
2420 // of a word if there is text here.
2421 if (cursor.pos() || cursor.par()->previous()) {
2422 while (cursor.pos() < cursor.par()->size()
2423 && cursor.par()->isLetter(cursor.pos()))
2424 cursor.pos(cursor.pos() + 1);
2427 // Now, skip until we have real text (will jump paragraphs)
2428 while ((cursor.par()->size() > cursor.pos()
2429 && (!cursor.par()->isLetter(cursor.pos()))
2430 && (!cursor.par()->isInset(cursor.pos()) ||
2431 !cursor.par()->getInset(cursor.pos())->allowSpellcheck()))
2432 || (cursor.par()->size() == cursor.pos()
2433 && cursor.par()->next()))
2435 if (cursor.pos() == cursor.par()->size()) {
2436 cursor.par(cursor.par()->next());
2439 cursor.pos(cursor.pos() + 1);
2442 // now check if we hit an inset so it has to be a inset containing text!
2443 if (cursor.pos() < cursor.par()->size() &&
2444 cursor.par()->isInset(cursor.pos()))
2447 cursor.par()->getInset(cursor.pos())->edit(bview);
2448 // now call us again to do the above trick
2449 // but obviously we have to start from down below ;)
2450 return bview->text->selectNextWordToSpellcheck(bview, value);
2453 // Update the value if we changed paragraphs
2454 if (cursor.par() != tmppar) {
2455 setCursor(bview, cursor.par(), cursor.pos());
2456 value = float(cursor.y())/float(height);
2459 // Start the selection from here
2460 selection.cursor = cursor;
2463 getFont(bview->buffer(), cursor.par(), cursor.pos())
2464 .language()->code());
2465 // and find the end of the word (insets like optional hyphens
2466 // and ligature break are part of a word)
2467 while (cursor.pos() < cursor.par()->size()
2468 && (cursor.par()->isLetter(cursor.pos())))
2469 cursor.pos(cursor.pos() + 1);
2471 // Finally, we copy the word to a string and return it
2473 if (selection.cursor.pos() < cursor.pos()) {
2475 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
2476 if (!cursor.par()->isInset(i))
2477 str += cursor.par()->getChar(i);
2480 return WordLangTuple(str, lang_code);
2484 // This one is also only for the spellchecker
2485 void LyXText::selectSelectedWord(BufferView * bview)
2487 if (the_locking_inset) {
2488 the_locking_inset->selectSelectedWord(bview);
2491 // move cursor to the beginning
2492 setCursor(bview, selection.cursor.par(), selection.cursor.pos());
2494 // set the sel cursor
2495 selection.cursor = cursor;
2497 // now find the end of the word
2498 while (cursor.pos() < cursor.par()->size()
2499 && (cursor.par()->isLetter(cursor.pos())))
2500 cursor.pos(cursor.pos() + 1);
2502 setCursor(bview, cursor.par(), cursor.pos());
2504 // finally set the selection
2505 setSelection(bview);
2509 // Delete from cursor up to the end of the current or next word.
2510 void LyXText::deleteWordForward(BufferView * bview)
2512 if (cursor.par()->empty())
2515 LyXCursor tmpcursor = cursor;
2516 tmpcursor.row(0); //Â ??
2517 selection.set(true); // to avoid deletion
2518 cursorRightOneWord(bview);
2519 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2520 selection.cursor = cursor;
2522 setSelection(bview);
2524 // Great, CutSelection() gets rid of multiple spaces.
2525 cutSelection(bview, true, false);
2530 // Delete from cursor to start of current or prior word.
2531 void LyXText::deleteWordBackward(BufferView * bview)
2533 if (cursor.par()->empty())
2536 LyXCursor tmpcursor = cursor;
2537 tmpcursor.row(0); // ??
2538 selection.set(true); // to avoid deletion
2539 cursorLeftOneWord(bview);
2540 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2541 selection.cursor = cursor;
2543 setSelection(bview);
2544 cutSelection(bview, true, false);
2549 // Kill to end of line.
2550 void LyXText::deleteLineForward(BufferView * bview)
2552 if (cursor.par()->empty())
2553 // Paragraph is empty, so we just go to the right
2556 LyXCursor tmpcursor = cursor;
2557 // We can't store the row over a regular setCursor
2558 // so we set it to 0 and reset it afterwards.
2559 tmpcursor.row(0); //Â ??
2560 selection.set(true); // to avoid deletion
2562 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2563 selection.cursor = cursor;
2565 setSelection(bview);
2566 // What is this test for ??? (JMarc)
2567 if (!selection.set()) {
2568 deleteWordForward(bview);
2570 cutSelection(bview, true, false);
2576 // Change the case of a word at cursor position.
2577 // This function directly manipulates Paragraph::text because there
2578 // is no Paragraph::SetChar currently. I did what I could to ensure
2579 // that it is correct. I guess part of it should be moved to
2580 // Paragraph, but it will have to change for 1.1 anyway. At least
2581 // it does not access outside of the allocated array as the older
2582 // version did. (JMarc)
2583 void LyXText::changeCase(BufferView * bview, LyXText::TextCase action)
2588 if (selection.set()) {
2589 from = selection.start;
2592 getWord(from, to, PARTIAL_WORD);
2593 setCursor(bview, to.par(), to.pos() + 1);
2596 changeRegionCase(bview, from, to, action);
2600 void LyXText::changeRegionCase(BufferView * bview,
2601 LyXCursor const & from,
2602 LyXCursor const & to,
2603 LyXText::TextCase action)
2605 lyx::Assert(from <= to);
2607 setUndo(bview, Undo::FINISH, from.par(), to.par()->next());
2609 pos_type pos = from.pos();
2610 Paragraph * par = from.par();
2612 while (par && (pos != to.pos() || par != to.par())) {
2613 if (pos == par->size()) {
2618 unsigned char c = par->getChar(pos);
2619 if (!IsInsetChar(c) && !IsHfillChar(c)) {
2621 case text_lowercase:
2624 case text_capitalization:
2626 action = text_lowercase;
2628 case text_uppercase:
2633 par->setChar(pos, c);
2634 checkParagraph(bview, par, pos);
2638 if (to.row() != from.row()) {
2639 refresh_y = from.y() - from.row()->baseline();
2640 refresh_row = from.row();
2641 status(bview, LyXText::NEED_MORE_REFRESH);
2646 void LyXText::transposeChars(BufferView & bview)
2648 Paragraph * tmppar = cursor.par();
2650 setUndo(&bview, Undo::FINISH, tmppar, tmppar->next());
2652 pos_type tmppos = cursor.pos();
2654 // First decide if it is possible to transpose at all
2656 // We are at the beginning of a paragraph.
2657 if (tmppos == 0) return;
2659 // We are at the end of a paragraph.
2660 if (tmppos == tmppar->size() - 1) return;
2662 unsigned char c1 = tmppar->getChar(tmppos);
2663 unsigned char c2 = tmppar->getChar(tmppos - 1);
2665 if (c1 != Paragraph::META_INSET
2666 && c2 != Paragraph::META_INSET) {
2667 tmppar->setChar(tmppos, c2);
2668 tmppar->setChar(tmppos - 1, c1);
2670 // We should have an implementation that handles insets
2671 // as well, but that will have to come later. (Lgb)
2672 checkParagraph(const_cast<BufferView*>(&bview), tmppar, tmppos);
2676 void LyXText::Delete(BufferView * bview)
2678 // this is a very easy implementation
2680 LyXCursor old_cursor = cursor;
2681 int const old_cur_par_id = old_cursor.par()->id();
2682 int const old_cur_par_prev_id = old_cursor.par()->previous() ?
2683 old_cursor.par()->previous()->id() : 0;
2685 // just move to the right
2688 // CHECK Look at the comment here.
2689 // This check is not very good...
2690 // The cursorRightIntern calls DeleteEmptyParagrapgMechanism
2691 // and that can very well delete the par or par->previous in
2692 // old_cursor. Will a solution where we compare paragraph id's
2694 if ((cursor.par()->previous() ? cursor.par()->previous()->id() : 0)
2695 == old_cur_par_prev_id
2696 && cursor.par()->id() != old_cur_par_id) {
2697 // delete-empty-paragraph-mechanism has done it
2701 // if you had success make a backspace
2702 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
2703 LyXCursor tmpcursor = cursor;
2704 // to make sure undo gets the right cursor position
2705 cursor = old_cursor;
2706 setUndo(bview, Undo::DELETE,
2707 cursor.par(), cursor.par()->next());
2714 void LyXText::backspace(BufferView * bview)
2716 // Get the font that is used to calculate the baselineskip
2717 pos_type lastpos = cursor.par()->size();
2718 LyXFont rawparfont =
2719 cursor.par()->getFontSettings(bview->buffer()->params,
2722 if (cursor.pos() == 0) {
2723 // The cursor is at the beginning of a paragraph,
2724 // so the the backspace will collapse two paragraphs into one.
2726 // we may paste some paragraphs
2728 // is it an empty paragraph?
2731 || (lastpos == 1 && cursor.par()->isSeparator(0)))) {
2732 // This is an empty paragraph and we delete it just by moving the cursor one step
2733 // left and let the DeleteEmptyParagraphMechanism handle the actual deletion
2734 // of the paragraph.
2736 if (cursor.par()->previous()) {
2737 Paragraph * tmppar = cursor.par()->previous();
2738 if (cursor.par()->layout() == tmppar->layout()
2739 && cursor.par()->getAlign() == tmppar->getAlign()) {
2740 // Inherit bottom DTD from the paragraph below.
2741 // (the one we are deleting)
2742 tmppar->params().lineBottom(cursor.par()->params().lineBottom());
2743 tmppar->params().spaceBottom(cursor.par()->params().spaceBottom());
2744 tmppar->params().pagebreakBottom(cursor.par()->params().pagebreakBottom());
2749 // the layout things can change the height of a row !
2750 int const tmpheight = cursor.row()->height();
2751 setHeightOfRow(bview, cursor.row());
2752 if (cursor.row()->height() != tmpheight) {
2753 refresh_y = cursor.y() - cursor.row()->baseline();
2754 refresh_row = cursor.row();
2755 status(bview, LyXText::NEED_MORE_REFRESH);
2761 if (cursor.par()->previous()) {
2762 setUndo(bview, Undo::DELETE,
2763 cursor.par()->previous(), cursor.par()->next());
2766 Paragraph * tmppar = cursor.par();
2767 Row * tmprow = cursor.row();
2769 // We used to do cursorLeftIntern() here, but it is
2770 // not a good idea since it triggers the auto-delete
2771 // mechanism. So we do a cursorLeftIntern()-lite,
2772 // without the dreaded mechanism. (JMarc)
2773 if (cursor.par()->previous()) {
2774 // steps into the above paragraph.
2775 setCursorIntern(bview, cursor.par()->previous(),
2776 cursor.par()->previous()->size(),
2780 // Pasting is not allowed, if the paragraphs have different
2781 // layout. I think it is a real bug of all other
2782 // word processors to allow it. It confuses the user.
2783 // Even so with a footnote paragraph and a non-footnote
2784 // paragraph. I will not allow pasting in this case,
2785 // because the user would be confused if the footnote behaves
2786 // different wether it is open or closed.
2788 // Correction: Pasting is always allowed with standard-layout
2789 LyXTextClass const & tclass =
2790 bview->buffer()->params.getLyXTextClass();
2792 if (cursor.par() != tmppar
2793 && (cursor.par()->layout() == tmppar->layout()
2794 || tmppar->layout() == tclass.defaultLayout())
2795 && cursor.par()->getAlign() == tmppar->getAlign()) {
2796 removeParagraph(tmprow);
2798 cursor.par()->pasteParagraph(bview->buffer()->params);
2800 if (!cursor.pos() || !cursor.par()->isSeparator(cursor.pos() - 1))
2801 ; //cursor.par()->insertChar(cursor.pos(), ' ');
2802 // strangely enough it seems that commenting out the line above removes
2803 // most or all of the segfaults. I will however also try to move the
2804 // two Remove... lines in front of the PasteParagraph too.
2807 cursor.pos(cursor.pos() - 1);
2809 status(bview, LyXText::NEED_MORE_REFRESH);
2810 refresh_row = cursor.row();
2811 refresh_y = cursor.y() - cursor.row()->baseline();
2813 // remove the lost paragraph
2814 // This one is not safe, since the paragraph that the tmprow and the
2815 // following rows belong to has been deleted by the PasteParagraph
2816 // above. The question is... could this be moved in front of the
2818 //RemoveParagraph(tmprow);
2819 //RemoveRow(tmprow);
2821 // This rebuilds the rows.
2822 appendParagraph(bview, cursor.row());
2823 updateCounters(bview);
2825 // the row may have changed, block, hfills etc.
2826 setCursor(bview, cursor.par(), cursor.pos(), false);
2829 // this is the code for a normal backspace, not pasting
2831 setUndo(bview, Undo::DELETE,
2832 cursor.par(), cursor.par()->next());
2833 // We used to do cursorLeftIntern() here, but it is
2834 // not a good idea since it triggers the auto-delete
2835 // mechanism. So we do a cursorLeftIntern()-lite,
2836 // without the dreaded mechanism. (JMarc)
2837 setCursorIntern(bview, cursor.par(), cursor.pos()- 1,
2838 false, cursor.boundary());
2840 // some insets are undeletable here
2841 if (cursor.par()->isInset(cursor.pos())) {
2842 if (!cursor.par()->getInset(cursor.pos())->deletable())
2844 // force complete redo when erasing display insets
2845 // this is a cruel method but safe..... Matthias
2846 if (cursor.par()->getInset(cursor.pos())->display() ||
2847 cursor.par()->getInset(cursor.pos())->needFullRow()) {
2848 cursor.par()->erase(cursor.pos());
2849 redoParagraph(bview);
2854 Row * row = cursor.row();
2855 int y = cursor.y() - row->baseline();
2857 // remember that a space at the end of a row doesnt count
2858 // when calculating the fill
2859 if (cursor.pos() < rowLast(row) ||
2860 !cursor.par()->isLineSeparator(cursor.pos())) {
2861 row->fill(row->fill() + singleWidth(bview,
2866 // some special code when deleting a newline. This is similar
2867 // to the behavior when pasting paragraphs
2868 if (cursor.pos() && cursor.par()->isNewline(cursor.pos())) {
2869 cursor.par()->erase(cursor.pos());
2870 // refresh the positions
2872 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2873 tmprow = tmprow->next();
2874 tmprow->pos(tmprow->pos() - 1);
2876 if (cursor.par()->isLineSeparator(cursor.pos() - 1))
2877 cursor.pos(cursor.pos() - 1);
2879 if (cursor.pos() < cursor.par()->size()
2880 && !cursor.par()->isSeparator(cursor.pos())) {
2881 cursor.par()->insertChar(cursor.pos(), ' ');
2882 setCharFont(bview->buffer(), cursor.par(),
2883 cursor.pos(), current_font);
2884 // refresh the positions
2886 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2887 tmprow = tmprow->next();
2888 tmprow->pos(tmprow->pos() + 1);
2892 cursor.par()->erase(cursor.pos());
2894 // refresh the positions
2896 while (tmprow->next()
2897 && tmprow->next()->par() == row->par()) {
2898 tmprow = tmprow->next();
2899 tmprow->pos(tmprow->pos() - 1);
2902 // delete newlines at the beginning of paragraphs
2903 while (!cursor.par()->empty() &&
2904 cursor.par()->isNewline(cursor.pos()) &&
2905 cursor.pos() == beginningOfMainBody(bview->buffer(),
2907 cursor.par()->erase(cursor.pos());
2908 // refresh the positions
2910 while (tmprow->next() &&
2911 tmprow->next()->par() == row->par()) {
2912 tmprow = tmprow->next();
2913 tmprow->pos(tmprow->pos() - 1);
2918 // is there a break one row above
2919 if (row->previous() && row->previous()->par() == row->par()) {
2920 z = nextBreakPoint(bview, row->previous(),
2922 if (z >= row->pos()) {
2925 Row * tmprow = row->previous();
2927 // maybe the current row is now empty
2928 if (row->pos() >= row->par()->size()) {
2933 breakAgainOneRow(bview, row);
2934 if (row->next() && row->next()->par() == row->par())
2935 need_break_row = row->next();
2940 // set the dimensions of the row above
2941 y -= tmprow->height();
2942 tmprow->fill(fill(bview, tmprow,
2944 setHeightOfRow(bview, tmprow);
2947 refresh_row = tmprow;
2948 status(bview, LyXText::NEED_MORE_REFRESH);
2949 setCursor(bview, cursor.par(), cursor.pos(),
2950 false, cursor.boundary());
2951 //current_font = rawtmpfont;
2952 //real_current_font = realtmpfont;
2953 // check, whether the last character's font has changed.
2955 cursor.par()->getFontSettings(bview->buffer()->params,
2956 cursor.par()->size() - 1))
2957 redoHeightOfParagraph(bview, cursor);
2962 // break the cursor row again
2963 if (row->next() && row->next()->par() == row->par() &&
2964 (rowLast(row) == row->par()->size() - 1 ||
2965 nextBreakPoint(bview, row, workWidth(bview)) != rowLast(row))) {
2967 // it can happen that a paragraph loses one row
2968 // without a real breakup. This is when a word
2969 // is to long to be broken. Well, I don t care this
2971 if (rowLast(row) == row->par()->size() - 1)
2972 removeRow(row->next());
2976 status(bview, LyXText::NEED_MORE_REFRESH);
2978 breakAgainOneRow(bview, row);
2979 // will the cursor be in another row now?
2980 if (row->next() && row->next()->par() == row->par() &&
2981 rowLast(row) <= cursor.pos()) {
2983 breakAgainOneRow(bview, row);
2986 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
2988 if (row->next() && row->next()->par() == row->par())
2989 need_break_row = row->next();
2993 // set the dimensions of the row
2994 row->fill(fill(bview, row, workWidth(bview)));
2995 int const tmpheight = row->height();
2996 setHeightOfRow(bview, row);
2997 if (tmpheight == row->height())
2998 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
3000 status(bview, LyXText::NEED_MORE_REFRESH);
3003 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
3007 // current_font = rawtmpfont;
3008 // real_current_font = realtmpfont;
3010 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
3011 != cursor.boundary())
3012 setCursor(bview, cursor.par(), cursor.pos(), false,
3013 !cursor.boundary());
3015 lastpos = cursor.par()->size();
3016 if (cursor.pos() == lastpos)
3017 setCurrentFont(bview);
3019 // check, whether the last characters font has changed.
3021 cursor.par()->getFontSettings(bview->buffer()->params, lastpos - 1)) {
3022 redoHeightOfParagraph(bview, cursor);
3024 // now the special right address boxes
3025 if (cursor.par()->layout()->margintype
3026 == MARGIN_RIGHT_ADDRESS_BOX) {
3027 redoDrawingOfParagraph(bview, cursor);
3033 bool LyXText::paintRowBackground(DrawRowParams & p)
3035 bool clear_area = true;
3037 LyXFont font(LyXFont::ALL_SANE);
3039 pos_type const last = rowLastPrintable(p.row);
3041 if (!p.bv->screen().forceClear() && last == p.row->pos()
3042 && p.row->par()->isInset(p.row->pos())) {
3043 inset = p.row->par()->getInset(p.row->pos());
3045 clear_area = inset->doClearArea();
3055 int const y = p.yo < 0 ? 0 : p.yo;
3056 int const h = p.yo < 0 ? p.row->height() + p.yo : p.row->height();
3057 p.pain->fillRectangle(x, y, p.width, h, backgroundColor());
3064 int h = p.row->baseline() - inset->ascent(p.bv, font);
3066 // first clear the whole row above the inset!
3068 p.pain->fillRectangle(p.xo, p.yo, p.width, h, backgroundColor());
3071 // clear the space below the inset!
3072 h += inset->ascent(p.bv, font) + inset->descent(p.bv, font);
3073 if ((p.row->height() - h) > 0) {
3074 p.pain->fillRectangle(p.xo, p.yo + h,
3075 p.width, p.row->height() - h, backgroundColor());
3078 // clear the space behind the inset, if needed
3079 if (!inset->display() && !inset->needFullRow()) {
3080 int const xp = int(p.x) + inset->width(p.bv, font);
3081 if (p.width - xp > 0) {
3082 p.pain->fillRectangle(xp, p.yo, p.width - xp,
3083 p.row->height(), backgroundColor());
3091 void LyXText::paintRowSelection(DrawRowParams & p)
3093 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3095 // the current selection
3096 int const startx = selection.start.x();
3097 int const endx = selection.end.x();
3098 int const starty = selection.start.y();
3099 int const endy = selection.end.y();
3100 Row const * startrow = selection.start.row();
3101 Row const * endrow = selection.end.row();
3105 if (bidi_same_direction) {
3109 int h = row->height();
3111 if (startrow == row && endrow == row) {
3112 if (startx < endx) {
3115 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3119 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3121 } else if (startrow == row) {
3122 int const x = (is_rtl) ? p.xo : (p.xo + startx);
3123 int const w = (is_rtl) ? startx : (p.width - startx);
3124 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3125 } else if (endrow == row) {
3126 int const x = (is_rtl) ? (p.xo + endx) : p.xo;
3127 int const w = (is_rtl) ? (p.width - endx) : endx;
3128 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3129 } else if (p.y > starty && p.y < endy) {
3130 p.pain->fillRectangle(p.xo, y, p.width, h, LColor::selection);
3133 } else if (startrow != row && endrow != row) {
3134 if (p.y > starty && p.y < endy) {
3136 int h = row->height();
3137 p.pain->fillRectangle(p.xo, p.yo, w, h, LColor::selection);
3142 if ((startrow != row && !is_rtl) || (endrow != row && is_rtl))
3143 p.pain->fillRectangle(p.xo, p.yo, int(p.x), row->height(), LColor::selection);
3145 Buffer const * buffer = p.bv->buffer();
3146 Paragraph * par = row->par();
3147 pos_type main_body = beginningOfMainBody(buffer, par);
3148 pos_type const last = rowLastPrintable(row);
3151 for (pos_type vpos = row->pos(); vpos <= last; ++vpos) {
3152 pos_type pos = vis2log(vpos);
3153 float const old_tmpx = tmpx;
3154 if (main_body > 0 && pos == main_body - 1) {
3155 LyXLayout_ptr const & layout = par->layout();
3156 LyXFont const lfont = getLabelFont(buffer, par);
3158 tmpx += p.label_hfill + font_metrics::width(layout->labelsep, lfont);
3160 if (par->isLineSeparator(main_body - 1))
3161 tmpx -= singleWidth(p.bv, par, main_body - 1);
3164 if (hfillExpansion(buffer, row, pos)) {
3165 tmpx += singleWidth(p.bv, par, pos);
3166 if (pos >= main_body)
3169 tmpx += p.label_hfill;
3172 else if (par->isSeparator(pos)) {
3173 tmpx += singleWidth(p.bv, par, pos);
3174 if (pos >= main_body)
3175 tmpx += p.separator;
3177 tmpx += singleWidth(p.bv, par, pos);
3180 if ((startrow != row || selection.start.pos() <= pos) &&
3181 (endrow != row || pos < selection.end.pos())) {
3182 // Here we do not use p.x as p.xo was added to p.x.
3183 p.pain->fillRectangle(int(old_tmpx), p.yo,
3184 int(tmpx - old_tmpx + 1),
3185 row->height(), LColor::selection);
3189 if ((startrow != row && is_rtl) || (endrow != row && !is_rtl)) {
3190 p.pain->fillRectangle(p.xo + int(tmpx),
3191 p.yo, int(p.bv->workWidth() - tmpx),
3192 row->height(), LColor::selection);
3197 void LyXText::paintRowAppendix(DrawRowParams & p)
3199 // FIXME: can be just p.width ?
3200 int const ww = p.bv->workWidth();
3201 Paragraph * firstpar = p.row->par();
3203 if (firstpar->params().appendix()) {
3204 p.pain->line(1, p.yo, 1, p.yo + p.row->height(), LColor::appendixline);
3205 p.pain->line(ww - 2, p.yo, ww - 2, p.yo + p.row->height(), LColor::appendixline);
3210 void LyXText::paintRowDepthBar(DrawRowParams & p)
3212 Paragraph::depth_type const depth = p.row->par()->getDepth();
3217 Paragraph::depth_type prev_depth = 0;
3218 if (p.row->previous())
3219 prev_depth = p.row->previous()->par()->getDepth();
3220 Paragraph::depth_type next_depth = 0;
3222 next_depth = p.row->next()->par()->getDepth();
3224 for (Paragraph::depth_type i = 1; i <= depth; ++i) {
3225 int const x = (LYX_PAPER_MARGIN / 5) * i + p.xo;
3226 int const h = p.yo + p.row->height() - 1 - (i - next_depth - 1) * 3;
3228 p.pain->line(x, p.yo, x, h, LColor::depthbar);
3230 int const w = LYX_PAPER_MARGIN / 5;
3232 if (i > prev_depth) {
3233 p.pain->fillRectangle(x, p.yo, w, 2, LColor::depthbar);
3235 if (i > next_depth) {
3236 p.pain->fillRectangle(x, h, w, 2, LColor::depthbar);
3242 int LyXText::getLengthMarkerHeight(BufferView * bv, VSpace const & vsp) const
3244 int const arrow_size = 4;
3245 int const space_size = int(vsp.inPixels(bv));
3247 if (vsp.kind() != VSpace::LENGTH) {
3253 int const min_size = max(3 * arrow_size,
3254 font_metrics::maxAscent(font)
3255 + font_metrics::maxDescent(font));
3257 if (vsp.length().len().value() < 0.0)
3260 return max(min_size, space_size);
3264 int LyXText::drawLengthMarker(DrawRowParams & p, string const & prefix,
3265 VSpace const & vsp, int start)
3267 int const arrow_size = 4;
3268 int const size = getLengthMarkerHeight(p.bv, vsp);
3269 int const end = start + size;
3271 // the label to display (if any)
3273 // y-values for top arrow
3275 // y-values for bottom arrow
3277 switch (vsp.kind()) {
3278 case VSpace::LENGTH:
3280 str = prefix + " (" + vsp.asLyXCommand() + ")";
3281 // adding or removing space
3282 bool const added = !(vsp.length().len().value() < 0.0);
3283 ty1 = added ? (start + arrow_size) : start;
3284 ty2 = added ? start : (start + arrow_size);
3285 by1 = added ? (end - arrow_size) : end;
3286 by2 = added ? end : (end - arrow_size);
3289 case VSpace:: VFILL:
3290 str = prefix + " (vertical fill)";
3295 // nothing to draw here
3299 int const leftx = p.xo + leftMargin(p.bv, p.row);
3300 int const midx = leftx + arrow_size;
3301 int const rightx = midx + arrow_size;
3309 font.setColor(LColor::added_space).decSize();
3310 font_metrics::rectText(str, font, w, a, d);
3312 p.pain->rectText(leftx + 2 * arrow_size + 5,
3313 start + ((end - start) / 2) + d,
3317 p.pain->line(leftx, ty1, midx, ty2, LColor::added_space);
3318 p.pain->line(midx, ty2, rightx, ty1, LColor::added_space);
3321 p.pain->line(leftx, by1, midx, by2, LColor::added_space);
3322 p.pain->line(midx, by2, rightx, by1, LColor::added_space);
3325 p.pain->line(midx, ty2, midx, by2, LColor::added_space);
3331 int LyXText::paintPageBreak(string const & label, int y, DrawRowParams & p)
3334 pb_font.setColor(LColor::pagebreak).decSize();
3339 font_metrics::rectText(label, pb_font, w, a, d);
3341 int const text_start = p.xo + ((p.width - w) / 2);
3342 int const text_end = text_start + w;
3344 p.pain->rectText(text_start, y + d, label, pb_font);
3346 p.pain->line(p.xo, y, text_start, y,
3347 LColor::pagebreak, Painter::line_onoffdash);
3348 p.pain->line(text_end, y, p.xo + p.width, y,
3349 LColor::pagebreak, Painter::line_onoffdash);
3351 return 3 * defaultHeight();
3355 void LyXText::paintFirstRow(DrawRowParams & p)
3357 Paragraph * par = p.row->par();
3358 ParagraphParameters const & parparams = par->params();
3360 // start of appendix?
3361 if (parparams.startOfAppendix()) {
3362 p.pain->line(1, p.yo, p.width - 2, p.yo, LColor::appendixline);
3367 // think about the margins
3368 if (!p.row->previous() && bv_owner)
3369 y_top += LYX_PAPER_MARGIN;
3371 // draw a top pagebreak
3372 if (parparams.pagebreakTop()) {
3373 y_top += paintPageBreak(_("Page Break (top)"),
3374 p.yo + y_top + 2 * defaultHeight(), p);
3377 // draw the additional space if needed:
3378 y_top += drawLengthMarker(p, _("Space above"),
3379 parparams.spaceTop(), p.yo + y_top);
3381 Buffer const * buffer = p.bv->buffer();
3383 LyXLayout_ptr const & layout = par->layout();
3385 // think about the parskip
3386 // some parskips VERY EASY IMPLEMENTATION
3387 if (buffer->params.paragraph_separation == BufferParams::PARSEP_SKIP) {
3388 if (par->previous()) {
3389 if (layout->latextype == LATEX_PARAGRAPH
3390 && !par->getDepth()) {
3391 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3393 LyXLayout_ptr const & playout =
3394 par->previous()->layout();
3395 if (playout->latextype == LATEX_PARAGRAPH
3396 && !par->previous()->getDepth()) {
3397 // is it right to use defskip here, too? (AS)
3398 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3404 int const ww = p.bv->workWidth();
3407 if (parparams.lineTop()) {
3408 LyXFont font(LyXFont::ALL_SANE);
3409 int const asc = font_metrics::ascent('x', getFont(buffer, par, 0));
3413 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3414 int const xp = static_cast<int>(inset_owner ? p.xo : 0);
3415 p.pain->line(xp, p.yo + y_top, xp + w, p.yo + y_top,
3416 LColor::topline, Painter::line_solid,
3417 Painter::line_thick);
3422 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3424 // should we print a label?
3425 if (layout->labeltype >= LABEL_STATIC
3426 && (layout->labeltype != LABEL_STATIC
3427 || layout->latextype != LATEX_ENVIRONMENT
3428 || par->isFirstInSequence())) {
3430 LyXFont font = getLabelFont(buffer, par);
3431 if (!par->getLabelstring().empty()) {
3433 string const str = par->getLabelstring();
3435 // this is special code for the chapter layout. This is
3436 // printed in an extra row and has a pagebreak at
3438 if (layout->labeltype == LABEL_COUNTER_CHAPTER) {
3439 if (buffer->params.secnumdepth >= 0) {
3440 float spacing_val = 1.0;
3441 if (!parparams.spacing().isDefault()) {
3442 spacing_val = parparams.spacing().getValue();
3444 spacing_val = buffer->params.spacing.getValue();
3448 int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val)
3449 + int(layout->parsep) * defaultHeight();
3452 x = ww - leftMargin(p.bv, p.row) -
3453 font_metrics::width(str, font);
3456 p.pain->text(int(x),
3457 p.yo + p.row->baseline() -
3458 p.row->ascent_of_text() - maxdesc,
3463 x = ww - leftMargin(p.bv, p.row)
3464 + font_metrics::width(layout->labelsep, font);
3466 x = p.x - font_metrics::width(layout->labelsep, font)
3467 - font_metrics::width(str, font);
3470 p.pain->text(int(x), p.yo + p.row->baseline(), str, font);
3473 // the labels at the top of an environment.
3474 // More or less for bibliography
3475 } else if (par->isFirstInSequence() &&
3476 (layout->labeltype == LABEL_TOP_ENVIRONMENT ||
3477 layout->labeltype == LABEL_BIBLIO ||
3478 layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
3479 LyXFont font = getLabelFont(buffer, par);
3480 if (!par->getLabelstring().empty()) {
3481 string const str = par->getLabelstring();
3482 float spacing_val = 1.0;
3483 if (!parparams.spacing().isDefault()) {
3484 spacing_val = parparams.spacing().getValue();
3486 spacing_val = buffer->params.spacing.getValue();
3490 int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val
3491 + (layout->labelbottomsep * defaultHeight()));
3494 if (layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
3495 x = ((is_rtl ? leftMargin(p.bv, p.row) : p.x)
3496 + ww - rightMargin(buffer, p.row)) / 2;
3497 x -= font_metrics::width(str, font) / 2;
3498 } else if (is_rtl) {
3499 x = ww - leftMargin(p.bv, p.row) -
3500 font_metrics::width(str, font);
3502 p.pain->text(int(x), p.yo + p.row->baseline()
3503 - p.row->ascent_of_text() - maxdesc,
3508 if (layout->labeltype == LABEL_BIBLIO && par->bibkey) {
3509 LyXFont font = getLayoutFont(buffer, par);
3512 x = ww - leftMargin(p.bv, p.row)
3513 + font_metrics::width(layout->labelsep, font);
3515 x = p.x - font_metrics::width(layout->labelsep, font)
3516 - par->bibkey->width(p.bv, font);
3518 par->bibkey->draw(p.bv, font, p.yo + p.row->baseline(), x, p.cleared);
3523 void LyXText::paintLastRow(DrawRowParams & p)
3525 Paragraph * par = p.row->par();
3526 ParagraphParameters const & parparams = par->params();
3527 int y_bottom = p.row->height() - 1;
3529 // think about the margins
3530 if (!p.row->next() && bv_owner)
3531 y_bottom -= LYX_PAPER_MARGIN;
3533 int const ww = p.bv->workWidth();
3535 // draw a bottom pagebreak
3536 if (parparams.pagebreakBottom()) {
3537 y_bottom -= paintPageBreak(_("Page Break (bottom)"),
3538 p.yo + y_bottom - 2 * defaultHeight(), p);
3541 // draw the additional space if needed:
3542 int const height = getLengthMarkerHeight(p.bv,
3543 parparams.spaceBottom());
3544 y_bottom -= drawLengthMarker(p, _("Space below"),
3545 parparams.spaceBottom(),
3546 p.yo + y_bottom - height);
3548 Buffer const * buffer = p.bv->buffer();
3550 // draw a bottom line
3551 if (parparams.lineBottom()) {
3552 LyXFont font(LyXFont::ALL_SANE);
3553 int const asc = font_metrics::ascent('x',
3554 getFont(buffer, par,
3555 max(pos_type(0), par->size() - 1)));
3559 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3560 int const xp = static_cast<int>(inset_owner ? p.xo : 0);
3561 int const y = p.yo + y_bottom;
3562 p.pain->line(xp, y, xp + w, y, LColor::topline, Painter::line_solid,
3563 Painter::line_thick);
3568 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3569 int const endlabel = par->getEndLabel();
3574 case END_LABEL_FILLED_BOX:
3576 LyXFont const font = getLabelFont(buffer, par);
3577 int const size = int(0.75 * font_metrics::maxAscent(font));
3578 int const y = (p.yo + p.row->baseline()) - size;
3579 int x = is_rtl ? LYX_PAPER_MARGIN : ww - LYX_PAPER_MARGIN - size;
3581 if (p.row->fill() <= size)
3582 x += (size - p.row->fill() + 1) * (is_rtl ? -1 : 1);
3584 if (endlabel == END_LABEL_BOX) {
3585 p.pain->rectangle(x, y, size, size, LColor::eolmarker);
3587 p.pain->fillRectangle(x, y, size, size,
3592 case END_LABEL_STATIC:
3595 LyXFont font(LyXFont::ALL_SANE);
3596 font = getLabelFont(buffer, par);
3598 LyXFont font = getLabelFont(buffer, par);
3600 string const & str = par->layout()->endlabelstring();
3601 int const x = is_rtl ?
3602 int(p.x) - font_metrics::width(str, font)
3603 : ww - rightMargin(buffer, p.row) - p.row->fill();
3604 p.pain->text(x, p.yo + p.row->baseline(), str, font);
3607 case END_LABEL_NO_LABEL:
3613 void LyXText::paintRowText(DrawRowParams & p)
3615 Paragraph * par = p.row->par();
3616 Buffer const * buffer = p.bv->buffer();
3618 pos_type const last = rowLastPrintable(p.row);
3619 pos_type main_body =
3620 beginningOfMainBody(buffer, par);
3621 if (main_body > 0 &&
3622 (main_body - 1 > last ||
3623 !par->isLineSeparator(main_body - 1))) {
3627 LyXLayout_ptr const & layout = par->layout();
3629 pos_type vpos = p.row->pos();
3630 while (vpos <= last) {
3631 if (p.x > p.bv->workWidth())
3633 pos_type pos = vis2log(vpos);
3634 if (p.x + singleWidth(p.bv, par, pos) < 0) {
3635 p.x += singleWidth(p.bv, par, pos);
3639 if (main_body > 0 && pos == main_body - 1) {
3640 int const lwidth = font_metrics::width(layout->labelsep,
3641 getLabelFont(buffer, par));
3643 p.x += p.label_hfill + lwidth
3644 - singleWidth(p.bv, par, main_body - 1);
3647 if (par->isHfill(pos)) {
3650 int const y0 = p.yo + p.row->baseline();
3651 int const y1 = y0 - defaultHeight() / 2;
3653 p.pain->line(int(p.x), y1, int(p.x), y0,
3654 LColor::added_space);
3656 if (hfillExpansion(buffer, p.row, pos)) {
3657 int const y2 = (y0 + y1) / 2;
3659 if (pos >= main_body) {
3660 p.pain->line(int(p.x), y2,
3661 int(p.x + p.hfill), y2,
3662 LColor::added_space,
3663 Painter::line_onoffdash);
3666 p.pain->line(int(p.x), y2,
3667 int(p.x + p.label_hfill), y2,
3668 LColor::added_space,
3669 Painter::line_onoffdash);
3670 p.x += p.label_hfill;
3672 p.pain->line(int(p.x), y1,
3674 LColor::added_space);
3678 } else if (par->isSeparator(pos)) {
3679 p.x += singleWidth(p.bv, par, pos);
3680 if (pos >= main_body)
3691 void LyXText::getVisibleRow(BufferView * bv, int y_offset, int x_offset,
3692 Row * row, int y, bool cleared)
3694 if (row->height() <= 0) {
3695 lyxerr << "LYX_ERROR: row.height: "
3696 << row->height() << endl;
3702 // set up drawing parameters
3704 p.pain = &bv->painter();
3708 prepareToPrint(bv, row, p.x, p.separator, p.hfill, p.label_hfill);
3709 if (inset_owner && (p.x < 0))
3713 p.width = inset_owner ? inset_owner->textWidth(bv, true) : bv->workWidth();
3714 p.cleared = cleared;
3718 // clear to background if necessary
3719 p.cleared = paintRowBackground(p);
3721 // paint the selection background
3722 if (selection.set()) {
3723 paintRowSelection(p);
3726 // vertical lines for appendix
3727 paintRowAppendix(p);
3729 // environment depth brackets
3730 paintRowDepthBar(p);
3732 // draw any stuff wanted for a first row of a paragraph
3737 // draw any stuff wanted for the last row of a paragraph
3738 if (!row->next() || (row->next()->par() != row->par())) {
3747 int LyXText::defaultHeight() const
3749 LyXFont font(LyXFont::ALL_SANE);
3750 return int(font_metrics::maxAscent(font)
3751 + font_metrics::maxDescent(font) * 1.5);
3755 // returns the column near the specified x-coordinate of the row
3756 // x is set to the real beginning of this column
3758 LyXText::getColumnNearX(BufferView * bview, Row * row, int & x,
3759 bool & boundary) const
3762 float fill_separator;
3764 float fill_label_hfill;
3766 prepareToPrint(bview, row, tmpx, fill_separator,
3767 fill_hfill, fill_label_hfill);
3769 pos_type vc = row->pos();
3770 pos_type last = rowLastPrintable(row);
3773 LyXLayout_ptr const & layout = row->par()->layout();
3775 bool left_side = false;
3777 pos_type main_body = beginningOfMainBody(bview->buffer(), row->par());
3778 float last_tmpx = tmpx;
3780 if (main_body > 0 &&
3781 (main_body - 1 > last ||
3782 !row->par()->isLineSeparator(main_body - 1)))
3785 while (vc <= last && tmpx <= x) {
3788 if (main_body > 0 && c == main_body-1) {
3789 tmpx += fill_label_hfill +
3790 font_metrics::width(layout->labelsep,
3791 getLabelFont(bview->buffer(), row->par()));
3792 if (row->par()->isLineSeparator(main_body - 1))
3793 tmpx -= singleWidth(bview, row->par(), main_body-1);
3796 if (hfillExpansion(bview->buffer(), row, c)) {
3797 x += singleWidth(bview, row->par(), c);
3801 tmpx += fill_label_hfill;
3803 else if (row->par()->isSeparator(c)) {
3804 tmpx += singleWidth(bview, row->par(), c);
3806 tmpx+= fill_separator;
3808 tmpx += singleWidth(bview, row->par(), c);
3812 if ((tmpx + last_tmpx) / 2 > x) {
3817 if (vc > last + 1) // This shouldn't happen.
3821 bool const lastrow = lyxrc.rtl_support // This is not needed, but gives
3822 // some speedup if rtl_support=false
3823 && (!row->next() || row->next()->par() != row->par());
3824 bool const rtl = (lastrow)
3825 ? row->par()->isRightToLeftPar(bview->buffer()->params)
3826 : false; // If lastrow is false, we don't need to compute
3827 // the value of rtl.
3829 if (row->pos() > last) // Row is empty?
3832 ((rtl && left_side && vc == row->pos() && x < tmpx - 5) ||
3833 (!rtl && !left_side && vc == last + 1 && x > tmpx + 5)))
3835 else if (vc == row->pos()) {
3837 if (bidi_level(c) % 2 == 1)
3840 c = vis2log(vc - 1);
3841 bool const rtl = (bidi_level(c) % 2 == 1);
3842 if (left_side == rtl) {
3844 boundary = isBoundary(bview->buffer(), row->par(), c);
3848 if (row->pos() <= last && c > last
3849 && row->par()->isNewline(last)) {
3850 if (bidi_level(last) % 2 == 0)
3851 tmpx -= singleWidth(bview, row->par(), last);
3853 tmpx += singleWidth(bview, row->par(), last);
3863 // returns pointer to a specified row
3864 Row * LyXText::getRow(Paragraph * par, pos_type pos, int & y) const
3869 Row * tmprow = firstrow;
3872 // find the first row of the specified paragraph
3873 while (tmprow->next() && tmprow->par() != par) {
3874 y += tmprow->height();
3875 tmprow = tmprow->next();
3878 // now find the wanted row
3879 while (tmprow->pos() < pos
3881 && tmprow->next()->par() == par
3882 && tmprow->next()->pos() <= pos) {
3883 y += tmprow->height();
3884 tmprow = tmprow->next();
3891 Row * LyXText::getRowNearY(int & y) const
3894 // If possible we should optimize this method. (Lgb)
3895 Row * tmprow = firstrow;
3898 while (tmprow->next() && tmpy + tmprow->height() <= y) {
3899 tmpy += tmprow->height();
3900 tmprow = tmprow->next();
3903 y = tmpy; // return the real y
3905 //lyxerr << "returned y = " << y << endl;
3909 // Search from the current cursor position.
3911 Row * tmprow = cursor.row();
3912 int tmpy = cursor.y() - tmprow->baseline();
3914 lyxerr << "cursor.y() = " << tmpy << endl;
3915 lyxerr << "tmprow->height() = " << tmprow->height() << endl;
3916 lyxerr << "tmprow->baseline() = " << tmprow->baseline() << endl;
3917 lyxerr << "first = " << first << endl;
3918 lyxerr << "y = " << y << endl;
3921 lyxerr << "up" << endl;
3923 tmpy -= tmprow->height();
3924 tmprow = tmprow->previous();
3925 } while (tmprow && tmpy - tmprow->height() >= y);
3926 } else if (y > tmpy) {
3927 lyxerr << "down" << endl;
3929 while (tmprow->next() && tmpy + tmprow->height() <= y) {
3930 tmpy += tmprow->height();
3931 tmprow = tmprow->next();
3934 lyxerr << "equal" << endl;
3937 y = tmpy; // return the real y
3939 lyxerr << "returned y = " << y << endl;
3947 int LyXText::getDepth() const
3949 return cursor.par()->getDepth();
3953 Inset::RESULT LyXText::lfunAppendix(FuncRequest const & cmd)
3955 BufferView * bv = cmd.view();
3956 // what is this good for?
3957 if (!bv->available())
3958 return Inset::UNDISPATCHED;
3960 Paragraph * par = cursor.par();
3961 bool start = !par->params().startOfAppendix();
3963 // ensure that we have only one start_of_appendix in this document
3964 Paragraph * tmp = ownerParagraph();
3965 for (; tmp; tmp = tmp->next()) {
3966 tmp->params().startOfAppendix(false);
3969 par->params().startOfAppendix(start);
3971 // we can set the refreshing parameters now
3972 status(cmd.view(), LyXText::NEED_MORE_REFRESH);
3974 refresh_row = 0; // not needed for full update
3975 updateCounters(cmd.view());
3976 setCursor(cmd.view(), cursor.par(), cursor.pos());
3979 | BufferView::FITCUR
3980 | BufferView::CHANGE);
3981 return Inset::DISPATCHED;
3985 Inset::RESULT LyXText::dispatch(FuncRequest const & cmd)
3987 switch (cmd.action) {
3989 return lfunAppendix(cmd);
3992 return Inset::UNDISPATCHED;
3995 return Inset::UNDISPATCHED;