1 /* This file is part of
2 * ======================================================
4 * LyX, The Document Processor
6 * Copyright 1995 Matthias Ettrich
7 * Copyright 1995-2001 The LyX Team.
9 * ====================================================== */
15 #include "lyxtextclasslist.h"
16 #include "paragraph.h"
18 #include "bufferparams.h"
23 #include "frontends/LyXView.h"
24 #include "frontends/Painter.h"
25 #include "frontends/font_metrics.h"
26 #include "frontends/screen.h"
27 #include "bufferview_funcs.h"
28 #include "BufferView.h"
30 #include "ParagraphParameters.h"
31 #include "undo_funcs.h"
33 #include "insets/insetbib.h"
34 #include "insets/insettext.h"
36 #include "support/textutils.h"
37 #include "support/LAssert.h"
38 #include "support/lstrings.h"
50 int const LYX_PAPER_MARGIN = 20;
54 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
57 int LyXText::workWidth(BufferView * bview) const
60 return inset_owner->textWidth(bview);
62 return bview->workWidth();
66 int LyXText::workWidth(BufferView * bview, Inset * inset) const
71 par = inset->parOwner();
73 pos = par->getPositionOfInset(inset);
75 if (!par || pos == -1) {
76 lyxerr << "LyXText::workWidth: something is wrong,"
77 " fall back to the brute force method" << endl;
78 Buffer::inset_iterator it = bview->buffer()->inset_iterator_begin();
79 Buffer::inset_iterator end = bview->buffer()->inset_iterator_end();
80 for (; it != end; ++it) {
90 return workWidth(bview);
93 LyXLayout const & layout =
94 textclasslist[bview->buffer()->params.textclass][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))
638 // Draw text and set the new x position
639 p.pain->text(int(p.x), p.yo + p.row->baseline(), str, orig_font);
640 p.x += font_metrics::width(str, orig_font);
644 bool LyXText::draw(DrawRowParams & p, pos_type & vpos)
646 pos_type const pos = vis2log(vpos);
647 Paragraph * par = p.row->par();
649 LyXFont const & orig_font = getFont(p.bv->buffer(), par, pos);
651 float const orig_x = p.x;
653 char const c = par->getChar(pos);
655 if (IsNewlineChar(c)) {
659 } else if (IsInsetChar(c)) {
660 if (!drawInset(p, pos))
663 drawForeignMark(p, orig_x, orig_font);
667 // usual characters, no insets
669 // special case languages
670 bool const hebrew = (orig_font.language()->lang() == "hebrew");
672 orig_font.language()->lang() == "arabic" &&
673 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
674 lyxrc.font_norm_type == LyXRC::ISO_10646_1);
676 // draw as many chars as we can
677 if ((!hebrew && !arabic)
678 || (hebrew && !Encodings::IsComposeChar_hebrew(c))
679 || (arabic && !Encodings::IsComposeChar_arabic(c))) {
680 drawChars(p, vpos, true, false);
682 drawHebrewComposeChar(p, vpos);
684 drawArabicComposeChar(p, vpos);
687 drawForeignMark(p, orig_x, orig_font);
689 #ifdef INHERIT_LANGUAGE
691 if ((font.language() == inherit_language) ||
692 (font.language() == ignore_language))
693 lyxerr << "No this shouldn't happen!\n";
700 // Returns the left beginning of the text.
701 // This information cannot be taken from the layouts-objekt, because in
702 // LaTeX the beginning of the text fits in some cases (for example sections)
703 // exactly the label-width.
704 int LyXText::leftMargin(BufferView * bview, Row const * row) const
707 if ((row->par()->getChar(row->pos()) == Paragraph::META_INSET) &&
708 (ins=row->par()->getInset(row->pos())) &&
709 (ins->needFullRow() || ins->display()))
710 return LYX_PAPER_MARGIN;
712 LyXTextClass const & tclass =
713 textclasslist[bview->buffer()->params.textclass];
714 LyXLayout const & layout = tclass[row->par()->layout()];
716 string parindent = layout.parindent;
718 int x = LYX_PAPER_MARGIN;
720 x += font_metrics::signedWidth(tclass.leftmargin(), tclass.defaultfont());
722 // this is the way, LyX handles the LaTeX-Environments.
723 // I have had this idea very late, so it seems to be a
724 // later added hack and this is true
725 if (!row->par()->getDepth()) {
726 if (row->par()->layout() == tclass.defaultLayoutName()) {
727 // find the previous same level paragraph
728 if (row->par()->previous()) {
729 Paragraph * newpar = row->par()
730 ->depthHook(row->par()->getDepth());
732 tclass[newpar->layout()].nextnoindent)
737 // find the next level paragraph
740 row->par()->outerHook();
742 // make a corresponding row. Needed to call LeftMargin()
744 // check wether it is a sufficent paragraph
745 if (newpar && tclass[newpar->layout()].isEnvironment()) {
747 dummyrow.par(newpar);
748 dummyrow.pos(newpar->size());
749 x = leftMargin(bview, &dummyrow);
751 // this is no longer an error, because this function
752 // is used to clear impossible depths after changing
753 // a layout. Since there is always a redo,
754 // LeftMargin() is always called
755 row->par()->params().depth(0);
758 if (newpar && row->par()->layout() == tclass.defaultLayoutName()) {
759 if (newpar->params().noindent())
762 parindent = tclass[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.defaultLayoutName() ||
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 = textclasslist[buf->params.textclass];
904 LyXLayout const & layout = tclass[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 && tclass[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, tclass.defaultfont())
942 * 4 / (row->par()->getDepth() + 4);
947 int LyXText::labelEnd(BufferView * bview, Row const * row) const
949 if (textclasslist[bview->buffer()->params.textclass][row->par()->layout()].margintype
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 const & layout =
983 textclasslist[bview->buffer()->params.textclass][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 =
1003 // this is the usual handling
1004 int x = leftMargin(bview, row);
1005 bool doitonetime = true;
1006 while (doitonetime || ((x < width) && (i < last))) {
1007 doitonetime = false;
1008 char const c = par->getChar(i);
1010 if (c == Paragraph::META_INSET)
1011 in = par->getInset(i);
1012 if (IsNewlineChar(c)) {
1014 x = width; // this means break
1015 } else if (in && !in->isChar()) {
1016 // check wether a Display() inset is
1017 // valid here. if not, change it to
1019 if (in->display() &&
1020 (layout.isCommand() ||
1021 (layout.labeltype == LABEL_MANUAL
1022 && i < beginningOfMainBody(bview->buffer(), par))))
1024 // display istn't allowd
1026 x += singleWidth(bview, par, i, c);
1027 } else if (in->display() || in->needFullRow()) {
1028 // So break the line here
1032 if (par->isLineSeparator(i+1))
1035 last_separator = last; // to avoid extra rows
1037 last_separator = i - 1;
1038 x = width; // this means break
1040 x += singleWidth(bview, par, i, c);
1041 // we have to check this separately as we could have a
1042 // lineseparator and then the algorithm below would prefer
1043 // that which IS wrong! We should always break on an inset
1044 // if it's too long and not on the last separator.
1045 // Maybe the only exeption is insets used as chars but
1046 // then we would have to have a special function inside
1047 // the inset to tell us this. Till then we leave it as
1048 // it is now. (Jug 20020106)
1049 if (pos < i && x >= width && last_separator >= 0)
1050 last_separator = i - 1;
1053 if (par->isLineSeparator(i))
1055 x += singleWidth(bview, par, i, c);
1058 if (i == main_body) {
1059 x += font_metrics::width(layout.labelsep,
1060 getLabelFont(bview->buffer(), par));
1061 if (par->isLineSeparator(i - 1))
1062 x-= singleWidth(bview, par, i - 1);
1063 int left_margin = labelEnd(bview, row);
1064 if (x < left_margin)
1068 if ((pos+1 < i) && (last_separator < 0) && (x >= width))
1069 last_separator = i - 2;
1070 else if ((pos < i) && (last_separator < 0) && (x >= width))
1071 last_separator = i - 1;
1072 // end of paragraph is always a suitable separator
1073 else if (i == last && x < width)
1077 // well, if last_separator is still 0, the line isn't breakable.
1078 // don't care and cut simply at the end
1079 if (last_separator < 0) {
1083 // manual labels cannot be broken in LaTeX, do not care
1084 if (main_body && last_separator < main_body)
1085 last_separator = main_body - 1;
1087 return last_separator;
1091 // returns the minimum space a row needs on the screen in pixel
1092 int LyXText::fill(BufferView * bview, Row * row, int paper_width) const
1094 if (paper_width < 0)
1098 // get the pure distance
1099 pos_type const last = rowLastPrintable(row);
1101 // special handling of the right address boxes
1102 if (textclasslist[bview->buffer()->params.textclass][row->par()->layout()].margintype
1103 == MARGIN_RIGHT_ADDRESS_BOX)
1105 int const tmpfill = row->fill();
1106 row->fill(0); // the minfill in MarginLeft()
1107 w = leftMargin(bview, row);
1110 w = leftMargin(bview, row);
1112 LyXLayout const & layout = textclasslist[bview->buffer()->params.textclass][row->par()->layout()];
1113 pos_type const main_body =
1114 beginningOfMainBody(bview->buffer(), row->par());
1115 pos_type i = row->pos();
1118 if (main_body > 0 && i == main_body) {
1119 w += font_metrics::width(layout.labelsep, getLabelFont(bview->buffer(), row->par()));
1120 if (row->par()->isLineSeparator(i - 1))
1121 w -= singleWidth(bview, row->par(), i - 1);
1122 int left_margin = labelEnd(bview, row);
1123 if (w < left_margin)
1126 w += singleWidth(bview, row->par(), i);
1129 if (main_body > 0 && main_body > last) {
1130 w += font_metrics::width(layout.labelsep, getLabelFont(bview->buffer(), row->par()));
1131 if (last >= 0 && row->par()->isLineSeparator(last))
1132 w -= singleWidth(bview, row->par(), last);
1133 int const left_margin = labelEnd(bview, row);
1134 if (w < left_margin)
1138 int const fill = paper_width - w - rightMargin(bview->buffer(), row);
1143 // returns the minimum space a manual label needs on the screen in pixel
1144 int LyXText::labelFill(BufferView * bview, Row const * row) const
1146 pos_type last = beginningOfMainBody(bview->buffer(), row->par()) - 1;
1147 // -1 because a label ends either with a space that is in the label,
1148 // or with the beginning of a footnote that is outside the label.
1150 // I don't understand this code in depth, but sometimes "last" is
1151 // less than 0 and this causes a crash. This fix seems to work
1152 // correctly, but I bet the real error is elsewhere. The bug is
1153 // triggered when you have an open footnote in a paragraph
1154 // environment with a manual label. (Asger)
1155 if (last < 0) last = 0;
1157 // a separator at this end does not count
1158 if (row->par()->isLineSeparator(last))
1162 pos_type i = row->pos();
1164 w += singleWidth(bview, row->par(), i);
1169 if (!row->par()->params().labelWidthString().empty()) {
1170 fill = max(font_metrics::width(row->par()->params().labelWidthString(),
1171 getLabelFont(bview->buffer(), row->par())) - w,
1179 // returns the number of separators in the specified row. The separator
1180 // on the very last column doesnt count
1181 int LyXText::numberOfSeparators(Buffer const * buf, Row const * row) const
1183 pos_type last = rowLastPrintable(row);
1184 pos_type p = max(row->pos(), beginningOfMainBody(buf, row->par()));
1187 for (; p <= last; ++p) {
1188 if (row->par()->isSeparator(p)) {
1196 // returns the number of hfills in the specified row. The LyX-Hfill is
1197 // a LaTeX \hfill so that the hfills at the beginning and at the end were
1198 // ignored. This is *MUCH* more usefull than not to ignore!
1199 int LyXText::numberOfHfills(Buffer const * buf, Row const * row) const
1201 pos_type const last = rowLast(row);
1202 pos_type first = row->pos();
1205 // hfill *DO* count at the beginning of paragraphs!
1206 while (first <= last && row->par()->isHfill(first)) {
1211 first = max(first, beginningOfMainBody(buf, row->par()));
1213 for (pos_type p = first; p <= last; ++p) {
1214 // last, because the end is ignored!
1216 if (row->par()->isHfill(p)) {
1224 // like NumberOfHfills, but only those in the manual label!
1225 int LyXText::numberOfLabelHfills(Buffer const * buf, Row const * row) const
1227 pos_type last = rowLast(row);
1228 pos_type first = row->pos();
1230 // hfill *DO* count at the beginning of paragraphs!
1231 while (first < last && row->par()->isHfill(first))
1235 last = min(last, beginningOfMainBody(buf, row->par()));
1237 for (pos_type p = first; p < last; ++p) {
1238 // last, because the end is ignored!
1239 if (row->par()->isHfill(p)) {
1247 // returns true, if a expansion is needed.
1248 // Rules are given by LaTeX
1249 bool LyXText::hfillExpansion(Buffer const * buf, Row const * row_ptr,
1252 // by the way, is it a hfill?
1253 if (!row_ptr->par()->isHfill(pos))
1256 // at the end of a row it does not count
1257 // unless another hfill exists on the line
1258 if (pos >= rowLast(row_ptr)) {
1259 pos_type i = row_ptr->pos();
1260 while (i < pos && !row_ptr->par()->isHfill(i)) {
1268 // at the beginning of a row it does not count, if it is not
1269 // the first row of a paragaph
1270 if (!row_ptr->pos())
1273 // in some labels it does not count
1274 if (textclasslist[buf->params.textclass][row_ptr->par()->layout()].margintype
1276 && pos < beginningOfMainBody(buf, row_ptr->par()))
1279 // if there is anything between the first char of the row and
1280 // the sepcified position that is not a newline and not a hfill,
1281 // the hfill will count, otherwise not
1282 pos_type i = row_ptr->pos();
1283 while (i < pos && (row_ptr->par()->isNewline(i)
1284 || row_ptr->par()->isHfill(i)))
1291 LColor::color LyXText::backgroundColor()
1294 return inset_owner->backgroundColor();
1296 return LColor::background;
1299 void LyXText::setHeightOfRow(BufferView * bview, Row * row_ptr) const
1301 // get the maximum ascent and the maximum descent
1304 float layoutasc = 0;
1305 float layoutdesc = 0;
1308 Inset * tmpinset = 0;
1310 // ok , let us initialize the maxasc and maxdesc value.
1311 // This depends in LaTeX of the font of the last character
1312 // in the paragraph. The hack below is necessary because
1313 // of the possibility of open footnotes
1315 // Correction: only the fontsize count. The other properties
1316 // are taken from the layoutfont. Nicer on the screen :)
1317 Paragraph * par = row_ptr->par();
1318 Paragraph * firstpar = row_ptr->par();
1320 LyXLayout const & layout
1321 = textclasslist[bview->buffer()->params.textclass][firstpar->layout()];
1323 // as max get the first character of this row then it can increes but not
1324 // decrees the height. Just some point to start with so we don't have to
1325 // do the assignment below too often.
1326 LyXFont font = getFont(bview->buffer(), par, row_ptr->pos());
1327 LyXFont::FONT_SIZE const tmpsize = font.size();
1328 font = getLayoutFont(bview->buffer(), par);
1329 LyXFont::FONT_SIZE const size = font.size();
1330 font.setSize(tmpsize);
1332 LyXFont labelfont = getLabelFont(bview->buffer(), par);
1334 float spacing_val = 1.0;
1335 if (!row_ptr->par()->params().spacing().isDefault()) {
1336 spacing_val = row_ptr->par()->params().spacing().getValue();
1338 spacing_val = bview->buffer()->params.spacing.getValue();
1340 //lyxerr << "spacing_val = " << spacing_val << endl;
1342 int maxasc = int(font_metrics::maxAscent(font) *
1343 layout.spacing.getValue() *
1345 int maxdesc = int(font_metrics::maxDescent(font) *
1346 layout.spacing.getValue() *
1349 pos_type const pos_end = rowLast(row_ptr);
1353 // Check if any insets are larger
1354 for (pos_type pos = row_ptr->pos(); pos <= pos_end; ++pos) {
1355 if (row_ptr->par()->isInset(pos)) {
1356 tmpfont = getFont(bview->buffer(), row_ptr->par(), pos);
1357 tmpinset = row_ptr->par()->getInset(pos);
1359 #if 1 // this is needed for deep update on initialitation
1360 tmpinset->update(bview, tmpfont);
1362 asc = tmpinset->ascent(bview, tmpfont);
1363 desc = tmpinset->descent(bview, tmpfont);
1364 maxwidth += tmpinset->width(bview, tmpfont);
1365 maxasc = max(maxasc, asc);
1366 maxdesc = max(maxdesc, desc);
1369 maxwidth += singleWidth(bview, row_ptr->par(), pos);
1373 // Check if any custom fonts are larger (Asger)
1374 // This is not completely correct, but we can live with the small,
1375 // cosmetic error for now.
1376 LyXFont::FONT_SIZE maxsize =
1377 row_ptr->par()->highestFontInRange(row_ptr->pos(), pos_end, size);
1378 if (maxsize > font.size()) {
1379 font.setSize(maxsize);
1381 asc = font_metrics::maxAscent(font);
1382 desc = font_metrics::maxDescent(font);
1389 // This is nicer with box insets:
1393 row_ptr->ascent_of_text(maxasc);
1395 // is it a top line?
1396 if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
1398 // some parksips VERY EASY IMPLEMENTATION
1399 if (bview->buffer()->params.paragraph_separation ==
1400 BufferParams::PARSEP_SKIP)
1402 if (layout.isParagraph()
1403 && firstpar->getDepth() == 0
1404 && firstpar->previous())
1406 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1407 } else if (firstpar->previous() &&
1408 textclasslist[bview->buffer()->params.textclass][firstpar->previous()->layout()].isParagraph() &&
1409 firstpar->previous()->getDepth() == 0)
1411 // is it right to use defskip here too? (AS)
1412 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1416 // the paper margins
1417 if (!row_ptr->par()->previous() && bv_owner)
1418 maxasc += LYX_PAPER_MARGIN;
1420 // add the vertical spaces, that the user added
1421 maxasc += getLengthMarkerHeight(bview, firstpar->params().spaceTop());
1423 // do not forget the DTP-lines!
1424 // there height depends on the font of the nearest character
1425 if (firstpar->params().lineTop())
1427 maxasc += 2 * font_metrics::ascent('x', getFont(bview->buffer(),
1429 // and now the pagebreaks
1430 if (firstpar->params().pagebreakTop())
1431 maxasc += 3 * defaultHeight();
1433 // This is special code for the chapter, since the label of this
1434 // layout is printed in an extra row
1435 if (layout.labeltype == LABEL_COUNTER_CHAPTER
1436 && bview->buffer()->params.secnumdepth >= 0)
1438 float spacing_val = 1.0;
1439 if (!row_ptr->par()->params().spacing().isDefault()) {
1440 spacing_val = row_ptr->par()->params().spacing().getValue();
1442 spacing_val = bview->buffer()->params.spacing.getValue();
1445 labeladdon = int(font_metrics::maxDescent(labelfont) *
1446 layout.spacing.getValue() *
1448 + int(font_metrics::maxAscent(labelfont) *
1449 layout.spacing.getValue() *
1453 // special code for the top label
1454 if ((layout.labeltype == LABEL_TOP_ENVIRONMENT
1455 || layout.labeltype == LABEL_BIBLIO
1456 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1457 && row_ptr->par()->isFirstInSequence()
1458 && !row_ptr->par()->getLabelstring().empty())
1460 float spacing_val = 1.0;
1461 if (!row_ptr->par()->params().spacing().isDefault()) {
1462 spacing_val = row_ptr->par()->params().spacing().getValue();
1464 spacing_val = bview->buffer()->params.spacing.getValue();
1468 (font_metrics::maxAscent(labelfont) *
1469 layout.spacing.getValue() *
1471 +(font_metrics::maxDescent(labelfont) *
1472 layout.spacing.getValue() *
1474 + layout.topsep * defaultHeight()
1475 + layout.labelbottomsep * defaultHeight());
1478 // and now the layout spaces, for example before and after a section,
1479 // or between the items of a itemize or enumerate environment
1481 if (!firstpar->params().pagebreakTop()) {
1482 Paragraph * prev = row_ptr->par()->previous();
1484 prev = row_ptr->par()->depthHook(row_ptr->par()->getDepth());
1485 if (prev && prev->layout() == firstpar->layout() &&
1486 prev->getDepth() == firstpar->getDepth() &&
1487 prev->getLabelWidthString() == firstpar->getLabelWidthString())
1489 layoutasc = (layout.itemsep * defaultHeight());
1490 } else if (row_ptr->previous()) {
1491 tmptop = layout.topsep;
1493 if (row_ptr->previous()->par()->getDepth() >= row_ptr->par()->getDepth())
1494 tmptop -= textclasslist[bview->buffer()->params.textclass][row_ptr->previous()->par()->layout()].bottomsep;
1497 layoutasc = (tmptop * defaultHeight());
1498 } else if (row_ptr->par()->params().lineTop()) {
1499 tmptop = layout.topsep;
1502 layoutasc = (tmptop * defaultHeight());
1505 prev = row_ptr->par()->outerHook();
1507 maxasc += int(textclasslist[bview->buffer()->params.textclass][prev->layout()].parsep * defaultHeight());
1509 if (firstpar->previous() &&
1510 firstpar->previous()->getDepth() == 0 &&
1511 firstpar->previous()->layout() !=
1515 } else if (firstpar->previous()) {
1516 maxasc += int(layout.parsep * defaultHeight());
1522 // is it a bottom line?
1523 if (row_ptr->par() == par
1524 && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par()))
1526 // the paper margins
1527 if (!par->next() && bv_owner)
1528 maxdesc += LYX_PAPER_MARGIN;
1530 // add the vertical spaces, that the user added
1531 maxdesc += getLengthMarkerHeight(bview, firstpar->params().spaceBottom());
1533 // do not forget the DTP-lines!
1534 // there height depends on the font of the nearest character
1535 if (firstpar->params().lineBottom())
1536 maxdesc += 2 * font_metrics::ascent('x',
1537 getFont(bview->buffer(),
1539 max(pos_type(0), par->size() - 1)));
1541 // and now the pagebreaks
1542 if (firstpar->params().pagebreakBottom())
1543 maxdesc += 3 * defaultHeight();
1545 // and now the layout spaces, for example before and after
1546 // a section, or between the items of a itemize or enumerate
1548 if (!firstpar->params().pagebreakBottom()
1549 && row_ptr->par()->next()) {
1550 Paragraph * nextpar = row_ptr->par()->next();
1551 Paragraph * comparepar = row_ptr->par();
1555 if (comparepar->getDepth() > nextpar->getDepth()) {
1556 usual = (textclasslist[bview->buffer()->params.textclass][comparepar->layout()].bottomsep * defaultHeight());
1557 comparepar = comparepar->depthHook(nextpar->getDepth());
1558 if (comparepar->layout()!= nextpar->layout()
1559 || nextpar->getLabelWidthString() !=
1560 comparepar->getLabelWidthString())
1562 unusual = (textclasslist[bview->buffer()->params.textclass][comparepar->layout()].bottomsep * defaultHeight());
1564 if (unusual > usual)
1565 layoutdesc = unusual;
1568 } else if (comparepar->getDepth() == nextpar->getDepth()) {
1570 if (comparepar->layout() != nextpar->layout()
1571 || nextpar->getLabelWidthString() !=
1572 comparepar->getLabelWidthString())
1573 layoutdesc = int(textclasslist[bview->buffer()->params.textclass][comparepar->layout()].bottomsep * defaultHeight());
1578 // incalculate the layout spaces
1579 maxasc += int(layoutasc * 2 / (2 + firstpar->getDepth()));
1580 maxdesc += int(layoutdesc * 2 / (2 + firstpar->getDepth()));
1582 // calculate the new height of the text
1583 height -= row_ptr->height();
1585 row_ptr->height(maxasc + maxdesc + labeladdon);
1586 row_ptr->baseline(maxasc + labeladdon);
1588 height += row_ptr->height();
1590 if (layout.margintype != MARGIN_RIGHT_ADDRESS_BOX) {
1593 row_ptr->width(maxwidth);
1594 prepareToPrint(bview, row_ptr, x, dummy, dummy, dummy, false);
1596 row_ptr->width(int(maxwidth + x));
1599 width = max(0,workWidth(bview));
1601 if (r->width() > width)
1609 // Appends the implicit specified paragraph behind the specified row,
1610 // start at the implicit given position
1611 void LyXText::appendParagraph(BufferView * bview, Row * row) const
1613 bool not_ready = true;
1615 // The last character position of a paragraph is an invariant so we can
1616 // safely get it here. (Asger)
1617 pos_type const lastposition = row->par()->size();
1619 // Get the next breakpoint
1620 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1624 // Insert the new row
1625 if (z < lastposition) {
1627 insertRow(row, row->par(), z);
1634 // Set the dimensions of the row
1635 // fixed fill setting now by calling inset->update() in
1636 // SingleWidth when needed!
1637 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1638 setHeightOfRow(bview, tmprow);
1640 } while (not_ready);
1644 void LyXText::breakAgain(BufferView * bview, Row * row) const
1646 bool not_ready = true;
1649 // get the next breakpoint
1650 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1653 if (z < row->par()->size()) {
1654 if (!row->next() || (row->next() && row->next()->par() != row->par())) {
1657 insertRow(row, row->par(), z);
1663 if (row->pos() == z)
1664 not_ready = false; // the rest will not change
1670 // if there are some rows too much, delete them
1671 // only if you broke the whole paragraph!
1672 Row * tmprow2 = row;
1673 while (tmprow2->next() && tmprow2->next()->par() == row->par()) {
1674 tmprow2 = tmprow2->next();
1676 while (tmprow2 != row) {
1677 tmprow2 = tmprow2->previous();
1678 removeRow(tmprow2->next());
1683 // set the dimensions of the row
1684 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1685 setHeightOfRow(bview, tmprow);
1686 } while (not_ready);
1690 // this is just a little changed version of break again
1691 void LyXText::breakAgainOneRow(BufferView * bview, Row * row)
1693 // get the next breakpoint
1694 pos_type z = nextBreakPoint(bview, row, workWidth(bview));
1697 if (z < row->par()->size()) {
1699 || (row->next() && row->next()->par() != row->par())) {
1702 insertRow(row, row->par(), z);
1708 if (row->pos() != z)
1712 // if there are some rows too much, delete them
1713 // only if you broke the whole paragraph!
1714 Row * tmprow2 = row;
1715 while (tmprow2->next()
1716 && tmprow2->next()->par() == row->par()) {
1717 tmprow2 = tmprow2->next();
1719 while (tmprow2 != row) {
1720 tmprow2 = tmprow2->previous();
1721 removeRow(tmprow2->next());
1725 // set the dimensions of the row
1726 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1727 setHeightOfRow(bview, tmprow);
1731 void LyXText::breakParagraph(BufferView * bview, char keep_layout)
1733 LyXTextClass const & tclass =
1734 textclasslist[bview->buffer()->params.textclass];
1735 LyXLayout const & layout = tclass[cursor.par()->layout()];
1737 // this is only allowed, if the current paragraph is not empty or caption
1738 // and if it has not the keepempty flag aktive
1739 if ((cursor.par()->size() <= 0)
1740 && layout.labeltype != LABEL_SENSITIVE
1741 && !layout.keepempty)
1744 setUndo(bview, Undo::FINISH, cursor.par(), cursor.par()->next());
1746 // Always break behind a space
1748 // It is better to erase the space (Dekel)
1749 if (cursor.pos() < cursor.par()->size()
1750 && cursor.par()->isLineSeparator(cursor.pos()))
1751 cursor.par()->erase(cursor.pos());
1752 // cursor.pos(cursor.pos() + 1);
1754 // break the paragraph
1758 keep_layout = layout.isEnvironment();
1760 // we need to set this before we insert the paragraph. IMO the
1761 // breakParagraph call should return a bool if it inserts the
1762 // paragraph before or behind and we should react on that one
1763 // but we can fix this in 1.3.0 (Jug 20020509)
1764 bool const isempty = (layout.keepempty && !cursor.par()->size());
1765 cursor.par()->breakParagraph(bview->buffer()->params, cursor.pos(),
1768 // well this is the caption hack since one caption is really enough
1769 if (layout.labeltype == LABEL_SENSITIVE) {
1771 // set to standard-layout
1772 cursor.par()->applyLayout(tclass.defaultLayoutName());
1774 // set to standard-layout
1775 cursor.par()->next()->applyLayout(tclass.defaultLayoutName());
1778 // if the cursor is at the beginning of a row without prior newline,
1780 // This touches only the screen-update. Otherwise we would may have
1781 // an empty row on the screen
1782 if (cursor.pos() && !cursor.row()->par()->isNewline(cursor.row()->pos() - 1)
1783 && cursor.row()->pos() == cursor.pos())
1788 status(bview, LyXText::NEED_MORE_REFRESH);
1789 refresh_row = cursor.row();
1790 refresh_y = cursor.y() - cursor.row()->baseline();
1792 // Do not forget the special right address boxes
1793 if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1794 while (refresh_row->previous() &&
1795 refresh_row->previous()->par() == refresh_row->par())
1797 refresh_row = refresh_row->previous();
1798 refresh_y -= refresh_row->height();
1801 removeParagraph(cursor.row());
1803 // set the dimensions of the cursor row
1804 cursor.row()->fill(fill(bview, cursor.row(), workWidth(bview)));
1806 setHeightOfRow(bview, cursor.row());
1808 while (cursor.par()->next()->size()
1809 && cursor.par()->next()->isNewline(0))
1810 cursor.par()->next()->erase(0);
1812 insertParagraph(bview, cursor.par()->next(), cursor.row());
1814 updateCounters(bview, cursor.row()->previous());
1816 // This check is necessary. Otherwise the new empty paragraph will
1817 // be deleted automatically. And it is more friendly for the user!
1818 if (cursor.pos() || isempty)
1819 setCursor(bview, cursor.par()->next(), 0);
1821 setCursor(bview, cursor.par(), 0);
1823 if (cursor.row()->next())
1824 breakAgain(bview, cursor.row()->next());
1830 // Just a macro to make some thing easier.
1831 void LyXText::redoParagraph(BufferView * bview) const
1834 redoParagraphs(bview, cursor, cursor.par()->next());
1835 setCursorIntern(bview, cursor.par(), cursor.pos());
1839 // insert a character, moves all the following breaks in the
1840 // same Paragraph one to the right and make a rebreak
1841 void LyXText::insertChar(BufferView * bview, char c)
1843 setUndo(bview, Undo::INSERT, cursor.par(), cursor.par()->next());
1845 // When the free-spacing option is set for the current layout,
1846 // disable the double-space checking
1848 bool const freeSpacing =
1849 textclasslist[bview->buffer()->params.textclass][cursor.row()->par()->layout()].free_spacing ||
1850 cursor.row()->par()->isFreeSpacing();
1852 if (lyxrc.auto_number) {
1853 static string const number_operators = "+-/*";
1854 static string const number_unary_operators = "+-";
1855 static string const number_seperators = ".,:";
1857 if (current_font.number() == LyXFont::ON) {
1858 if (!IsDigit(c) && !contains(number_operators, c) &&
1859 !(contains(number_seperators, c) &&
1860 cursor.pos() >= 1 &&
1861 cursor.pos() < cursor.par()->size() &&
1862 getFont(bview->buffer(),
1864 cursor.pos()).number() == LyXFont::ON &&
1865 getFont(bview->buffer(),
1867 cursor.pos() - 1).number() == LyXFont::ON)
1869 number(bview); // Set current_font.number to OFF
1870 } else if (IsDigit(c) &&
1871 real_current_font.isVisibleRightToLeft()) {
1872 number(bview); // Set current_font.number to ON
1874 if (cursor.pos() > 0) {
1875 char const c = cursor.par()->getChar(cursor.pos() - 1);
1876 if (contains(number_unary_operators, c) &&
1877 (cursor.pos() == 1 ||
1878 cursor.par()->isSeparator(cursor.pos() - 2) ||
1879 cursor.par()->isNewline(cursor.pos() - 2))
1881 setCharFont(bview->buffer(),
1885 } else if (contains(number_seperators, c) &&
1886 cursor.pos() >= 2 &&
1887 getFont(bview->buffer(),
1889 cursor.pos() - 2).number() == LyXFont::ON) {
1890 setCharFont(bview->buffer(),
1900 // First check, if there will be two blanks together or a blank at
1901 // the beginning of a paragraph.
1902 // I decided to handle blanks like normal characters, the main
1903 // difference are the special checks when calculating the row.fill
1904 // (blank does not count at the end of a row) and the check here
1906 // The bug is triggered when we type in a description environment:
1907 // The current_font is not changed when we go from label to main text
1908 // and it should (along with realtmpfont) when we type the space.
1909 // CHECK There is a bug here! (Asger)
1911 LyXFont realtmpfont = real_current_font;
1912 LyXFont rawtmpfont = current_font;
1913 // store the current font. This is because of the use of cursor
1914 // movements. The moving cursor would refresh the current font
1916 // Get the font that is used to calculate the baselineskip
1917 pos_type const lastpos = cursor.par()->size();
1918 LyXFont rawparfont =
1919 cursor.par()->getFontSettings(bview->buffer()->params,
1922 bool jumped_over_space = false;
1924 if (!freeSpacing && IsLineSeparatorChar(c)) {
1925 if ((cursor.pos() > 0
1926 && cursor.par()->isLineSeparator(cursor.pos() - 1))
1927 || (cursor.pos() > 0
1928 && cursor.par()->isNewline(cursor.pos() - 1))
1929 || (cursor.pos() == 0)) {
1930 static bool sent_space_message = false;
1931 if (!sent_space_message) {
1932 if (cursor.pos() == 0)
1933 bview->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1935 bview->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1936 sent_space_message = true;
1941 } else if (IsNewlineChar(c)) {
1942 if (cursor.pos() <= beginningOfMainBody(bview->buffer(),
1948 // No newline at first position of a paragraph or behind labels.
1949 // TeX does not allow that
1951 if (cursor.pos() < cursor.par()->size() &&
1952 cursor.par()->isLineSeparator(cursor.pos()))
1953 // newline always after a blank!
1955 cursor.row()->fill(-1); // to force a new break
1958 // the display inset stuff
1959 if (cursor.row()->par()->isInset(cursor.row()->pos())) {
1960 Inset * inset = cursor.row()->par()->getInset(cursor.row()->pos());
1961 if (inset && (inset->display() || inset->needFullRow())) {
1962 // force a new break
1963 cursor.row()->fill(-1); // to force a new break
1967 // get the cursor row fist
1968 Row * row = cursor.row();
1969 int y = cursor.y() - row->baseline();
1970 if (c != Paragraph::META_INSET) {
1971 // Here case LyXText::InsertInset already insertet the character
1972 cursor.par()->insertChar(cursor.pos(), c);
1974 setCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont);
1976 if (!jumped_over_space) {
1977 // refresh the positions
1979 while (tmprow->next() && tmprow->next()->par() == row->par()) {
1980 tmprow = tmprow->next();
1981 tmprow->pos(tmprow->pos() + 1);
1985 // Is there a break one row above
1986 if (row->previous() && row->previous()->par() == row->par()
1987 && (cursor.par()->isLineSeparator(cursor.pos())
1988 || cursor.par()->isNewline(cursor.pos())
1989 || ((cursor.pos() < cursor.par()->size()) &&
1990 cursor.par()->isInset(cursor.pos()+1))
1991 || cursor.row()->fill() == -1))
1993 pos_type z = nextBreakPoint(bview,
1996 if (z >= row->pos()) {
1999 // set the dimensions of the row above
2000 row->previous()->fill(fill(bview,
2004 setHeightOfRow(bview, row->previous());
2006 y -= row->previous()->height();
2008 refresh_row = row->previous();
2009 status(bview, LyXText::NEED_MORE_REFRESH);
2011 breakAgainOneRow(bview, row);
2013 current_font = rawtmpfont;
2014 real_current_font = realtmpfont;
2015 setCursor(bview, cursor.par(), cursor.pos() + 1,
2016 false, cursor.boundary());
2017 // cursor MUST be in row now.
2019 if (row->next() && row->next()->par() == row->par())
2020 need_break_row = row->next();
2024 // check, wether the last characters font has changed.
2025 if (cursor.pos() && cursor.pos() == cursor.par()->size()
2026 && rawparfont != rawtmpfont)
2027 redoHeightOfParagraph(bview, cursor);
2034 // recalculate the fill of the row
2035 if (row->fill() >= 0) {
2036 // needed because a newline will set fill to -1. Otherwise
2037 // we would not get a rebreak!
2038 row->fill(fill(bview, row, workWidth(bview)));
2040 if (c == Paragraph::META_INSET || row->fill() < 0) {
2043 refresh_x = cursor.x();
2044 refresh_pos = cursor.pos();
2045 status(bview, LyXText::NEED_MORE_REFRESH);
2046 breakAgainOneRow(bview, row);
2047 // will the cursor be in another row now?
2048 if (rowLast(row) <= cursor.pos() + 1 && row->next()) {
2049 if (row->next() && row->next()->par() == row->par())
2050 // this should always be true
2052 breakAgainOneRow(bview, row);
2054 current_font = rawtmpfont;
2055 real_current_font = realtmpfont;
2057 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2059 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
2060 != cursor.boundary())
2061 setCursor(bview, cursor.par(), cursor.pos(), false,
2062 !cursor.boundary());
2063 if (row->next() && row->next()->par() == row->par())
2064 need_break_row = row->next();
2069 refresh_x = cursor.x();
2071 refresh_pos = cursor.pos();
2073 int const tmpheight = row->height();
2074 setHeightOfRow(bview, row);
2075 if (tmpheight == row->height())
2076 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
2078 status(bview, LyXText::NEED_MORE_REFRESH);
2080 current_font = rawtmpfont;
2081 real_current_font = realtmpfont;
2082 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
2086 // check, wether the last characters font has changed.
2087 if (cursor.pos() && cursor.pos() == cursor.par()->size()
2088 && rawparfont != rawtmpfont) {
2089 redoHeightOfParagraph(bview, cursor);
2091 // now the special right address boxes
2092 if (textclasslist[bview->buffer()->params.textclass][cursor.par()->layout()].margintype
2093 == MARGIN_RIGHT_ADDRESS_BOX) {
2094 redoDrawingOfParagraph(bview, cursor);
2102 void LyXText::charInserted()
2104 // Here we could call FinishUndo for every 20 characters inserted.
2105 // This is from my experience how emacs does it.
2106 static unsigned int counter;
2116 void LyXText::prepareToPrint(BufferView * bview,
2117 Row * row, float & x,
2118 float & fill_separator,
2120 float & fill_label_hfill,
2126 float w = row->fill();
2128 fill_label_hfill = 0;
2130 fill_label_hfill = 0;
2133 row->par()->isRightToLeftPar(bview->buffer()->params);
2135 x = (workWidth(bview) > 0)
2136 ? rightMargin(bview->buffer(), row) : 0;
2138 x = (workWidth(bview) > 0)
2139 ? leftMargin(bview, row) : 0;
2141 // is there a manual margin with a manual label
2142 LyXTextClass const & tclass = textclasslist[bview->buffer()->params.textclass];
2143 LyXLayout const & layout = tclass[row->par()->layout()];
2145 if (layout.margintype == MARGIN_MANUAL
2146 && layout.labeltype == LABEL_MANUAL) {
2147 // one more since labels are left aligned
2148 nlh = numberOfLabelHfills(bview->buffer(), row) + 1;
2149 if (nlh && !row->par()->getLabelWidthString().empty()) {
2150 fill_label_hfill = labelFill(bview, row) / nlh;
2154 // are there any hfills in the row?
2155 float const nh = numberOfHfills(bview->buffer(), row);
2159 fill_hfill = w / nh;
2160 // we don't have to look at the alignment if it is ALIGN_LEFT and
2161 // if the row is already larger then the permitted width as then
2162 // we force the LEFT_ALIGN'edness!
2163 } else if (static_cast<int>(row->width()) < workWidth(bview)) {
2164 // is it block, flushleft or flushright?
2165 // set x how you need it
2167 if (row->par()->params().align() == LYX_ALIGN_LAYOUT) {
2168 align = layout.align;
2170 align = row->par()->params().align();
2173 // center displayed insets
2175 if (row->par()->isInset(row->pos())
2176 && (inset=row->par()->getInset(row->pos()))
2177 && (inset->display())) // || (inset->scroll() < 0)))
2178 align = (inset->lyxCode() == Inset::MATHMACRO_CODE)
2179 ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER;
2180 // ERT insets should always be LEFT ALIGNED on screen
2181 inset = row->par()->inInset();
2182 if (inset && inset->owner() &&
2183 inset->owner()->lyxCode() == Inset::ERT_CODE)
2185 align = LYX_ALIGN_LEFT;
2189 case LYX_ALIGN_BLOCK:
2190 ns = numberOfSeparators(bview->buffer(), row);
2191 if (ns && row->next() && row->next()->par() == row->par() &&
2192 !(row->next()->par()->isNewline(row->next()->pos() - 1))
2193 && !(row->next()->par()->isInset(row->next()->pos())
2194 && row->next()->par()->getInset(row->next()->pos())
2195 && row->next()->par()->getInset(row->next()->pos())->display())
2198 fill_separator = w / ns;
2199 } else if (is_rtl) {
2203 case LYX_ALIGN_RIGHT:
2206 case LYX_ALIGN_CENTER:
2214 computeBidiTables(bview->buffer(), row);
2216 pos_type main_body =
2217 beginningOfMainBody(bview->buffer(), row->par());
2218 pos_type last = rowLast(row);
2220 if (main_body > 0 &&
2221 (main_body - 1 > last ||
2222 !row->par()->isLineSeparator(main_body - 1))) {
2223 x += font_metrics::width(layout.labelsep,
2224 getLabelFont(bview->buffer(), row->par()));
2225 if (main_body - 1 <= last)
2226 x += fill_label_hfill;
2232 // important for the screen
2235 // the cursor set functions have a special mechanism. When they
2236 // realize, that you left an empty paragraph, they will delete it.
2237 // They also delete the corresponding row
2239 void LyXText::cursorRightOneWord(BufferView * bview) const
2241 // treat floats, HFills and Insets as words
2242 LyXCursor tmpcursor = cursor;
2243 // CHECK See comment on top of text.C
2245 if (tmpcursor.pos() == tmpcursor.par()->size()
2246 && tmpcursor.par()->next()) {
2247 tmpcursor.par(tmpcursor.par()->next());
2252 // Skip through initial nonword stuff.
2253 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2254 ! tmpcursor.par()->isWord(tmpcursor.pos())) {
2255 // printf("Current pos1 %d", tmpcursor.pos()) ;
2256 tmpcursor.pos(tmpcursor.pos() + 1);
2259 // Advance through word.
2260 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2261 tmpcursor.par()->isWord(tmpcursor.pos())) {
2262 // printf("Current pos2 %d", tmpcursor.pos()) ;
2263 tmpcursor.pos(tmpcursor.pos() + 1);
2267 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2271 void LyXText::cursorTab(BufferView * bview) const
2273 LyXCursor tmpcursor = cursor;
2274 while (tmpcursor.pos() < tmpcursor.par()->size()
2275 && !tmpcursor.par()->isNewline(tmpcursor.pos()))
2276 tmpcursor.pos(tmpcursor.pos() + 1);
2278 if (tmpcursor.pos() == tmpcursor.par()->size()) {
2279 if (tmpcursor.par()->next()) {
2280 tmpcursor.par(tmpcursor.par()->next());
2284 tmpcursor.pos(tmpcursor.pos() + 1);
2285 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2289 // Skip initial whitespace at end of word and move cursor to *start*
2290 // of prior word, not to end of next prior word.
2291 void LyXText::cursorLeftOneWord(BufferView * bview) const
2293 LyXCursor tmpcursor = cursor;
2294 cursorLeftOneWord(tmpcursor);
2295 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2299 void LyXText::cursorLeftOneWord(LyXCursor & cur) const
2301 // treat HFills, floats and Insets as words
2304 && (cur.par()->isSeparator(cur.pos() - 1)
2305 || cur.par()->isKomma(cur.pos() - 1))
2306 && !(cur.par()->isHfill(cur.pos() - 1)
2307 || cur.par()->isInset(cur.pos() - 1)))
2308 cur.pos(cur.pos() - 1);
2311 && (cur.par()->isInset(cur.pos() - 1)
2312 || cur.par()->isHfill(cur.pos() - 1))) {
2313 cur.pos(cur.pos() - 1);
2314 } else if (!cur.pos()) {
2315 if (cur.par()->previous()) {
2316 cur.par(cur.par()->previous());
2317 cur.pos(cur.par()->size());
2319 } else { // Here, cur != 0
2320 while (cur.pos() > 0 &&
2321 cur.par()->isWord(cur.pos()-1))
2322 cur.pos(cur.pos() - 1);
2327 // Select current word. This depends on behaviour of
2328 // CursorLeftOneWord(), so it is patched as well.
2329 void LyXText::getWord(LyXCursor & from, LyXCursor & to,
2330 word_location const loc) const
2332 // first put the cursor where we wana start to select the word
2335 case WHOLE_WORD_STRICT:
2336 if (cursor.pos() == 0 || cursor.pos() == cursor.par()->size()
2337 || cursor.par()->isSeparator(cursor.pos())
2338 || cursor.par()->isKomma(cursor.pos())
2339 || cursor.par()->isSeparator(cursor.pos() -1)
2340 || cursor.par()->isKomma(cursor.pos() -1)) {
2344 // no break here, we go to the next
2347 // Move cursor to the beginning, when not already there.
2348 if (from.pos() && !from.par()->isSeparator(from.pos() - 1)
2349 && !from.par()->isKomma(from.pos() - 1))
2350 cursorLeftOneWord(from);
2353 // always move the cursor to the beginning of previous word
2354 cursorLeftOneWord(from);
2357 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet\n";
2363 while (to.pos() < to.par()->size()
2364 && !to.par()->isSeparator(to.pos())
2365 && !to.par()->isKomma(to.pos())
2366 && !to.par()->isHfill(to.pos()))
2368 to.pos(to.pos() + 1);
2373 void LyXText::selectWord(BufferView * bview, word_location const loc)
2377 getWord(from, to, loc);
2379 setCursor(bview, from.par(), from.pos());
2382 selection.cursor = cursor;
2383 setCursor(bview, to.par(), to.pos());
2384 setSelection(bview);
2388 // Select the word currently under the cursor when no
2389 // selection is currently set
2390 bool LyXText::selectWordWhenUnderCursor(BufferView * bview,
2391 word_location const loc)
2393 if (!selection.set()) {
2394 selectWord(bview, loc);
2395 return selection.set();
2401 // This function is only used by the spellchecker for NextWord().
2402 // It doesn't handle LYX_ACCENTs and probably never will.
2403 string const LyXText::selectNextWordToSpellcheck(BufferView * bview,
2404 float & value) const
2406 if (the_locking_inset) {
2407 string str = the_locking_inset->selectNextWordToSpellcheck(bview, value);
2409 value += float(cursor.y())/float(height);
2412 // we have to go on checking so move cusor to the next char
2413 if (cursor.pos() == cursor.par()->size()) {
2414 if (!cursor.par()->next())
2416 cursor.par(cursor.par()->next());
2419 cursor.pos(cursor.pos() + 1);
2421 Paragraph * tmppar = cursor.par();
2423 // If this is not the very first word, skip rest of
2424 // current word because we are probably in the middle
2425 // of a word if there is text here.
2426 if (cursor.pos() || cursor.par()->previous()) {
2427 while (cursor.pos() < cursor.par()->size()
2428 && cursor.par()->isLetter(cursor.pos()))
2429 cursor.pos(cursor.pos() + 1);
2432 // Now, skip until we have real text (will jump paragraphs)
2433 while ((cursor.par()->size() > cursor.pos()
2434 && (!cursor.par()->isLetter(cursor.pos()))
2435 && (!cursor.par()->isInset(cursor.pos()) ||
2436 !cursor.par()->getInset(cursor.pos())->allowSpellcheck()))
2437 || (cursor.par()->size() == cursor.pos()
2438 && cursor.par()->next()))
2440 if (cursor.pos() == cursor.par()->size()) {
2441 cursor.par(cursor.par()->next());
2444 cursor.pos(cursor.pos() + 1);
2447 // now check if we hit an inset so it has to be a inset containing text!
2448 if (cursor.pos() < cursor.par()->size() &&
2449 cursor.par()->isInset(cursor.pos()))
2452 cursor.par()->getInset(cursor.pos())->edit(bview);
2453 // now call us again to do the above trick
2454 // but obviously we have to start from down below ;)
2455 return bview->text->selectNextWordToSpellcheck(bview, value);
2458 // Update the value if we changed paragraphs
2459 if (cursor.par() != tmppar) {
2460 setCursor(bview, cursor.par(), cursor.pos());
2461 value = float(cursor.y())/float(height);
2464 // Start the selection from here
2465 selection.cursor = cursor;
2467 // and find the end of the word (insets like optional hyphens
2468 // and ligature break are part of a word)
2469 while (cursor.pos() < cursor.par()->size()
2470 && (cursor.par()->isLetter(cursor.pos())))
2471 cursor.pos(cursor.pos() + 1);
2473 // Finally, we copy the word to a string and return it
2475 if (selection.cursor.pos() < cursor.pos()) {
2477 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
2478 if (!cursor.par()->isInset(i))
2479 str += cursor.par()->getChar(i);
2486 // This one is also only for the spellchecker
2487 void LyXText::selectSelectedWord(BufferView * bview)
2489 if (the_locking_inset) {
2490 the_locking_inset->selectSelectedWord(bview);
2493 // move cursor to the beginning
2494 setCursor(bview, selection.cursor.par(), selection.cursor.pos());
2496 // set the sel cursor
2497 selection.cursor = cursor;
2499 // now find the end of the word
2500 while (cursor.pos() < cursor.par()->size()
2501 && (cursor.par()->isLetter(cursor.pos())))
2502 cursor.pos(cursor.pos() + 1);
2504 setCursor(bview, cursor.par(), cursor.pos());
2506 // finally set the selection
2507 setSelection(bview);
2511 // Delete from cursor up to the end of the current or next word.
2512 void LyXText::deleteWordForward(BufferView * bview)
2514 if (!cursor.par()->size())
2517 LyXCursor tmpcursor = cursor;
2518 tmpcursor.row(0); //Â ??
2519 selection.set(true); // to avoid deletion
2520 cursorRightOneWord(bview);
2521 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2522 selection.cursor = cursor;
2524 setSelection(bview);
2526 // Great, CutSelection() gets rid of multiple spaces.
2527 cutSelection(bview, true, false);
2532 // Delete from cursor to start of current or prior word.
2533 void LyXText::deleteWordBackward(BufferView * bview)
2535 if (!cursor.par()->size())
2538 LyXCursor tmpcursor = cursor;
2539 tmpcursor.row(0); // ??
2540 selection.set(true); // to avoid deletion
2541 cursorLeftOneWord(bview);
2542 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2543 selection.cursor = cursor;
2545 setSelection(bview);
2546 cutSelection(bview, true, false);
2551 // Kill to end of line.
2552 void LyXText::deleteLineForward(BufferView * bview)
2554 if (!cursor.par()->size())
2555 // Paragraph is empty, so we just go to the right
2558 LyXCursor tmpcursor = cursor;
2559 // We can't store the row over a regular setCursor
2560 // so we set it to 0 and reset it afterwards.
2561 tmpcursor.row(0); //Â ??
2562 selection.set(true); // to avoid deletion
2564 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2565 selection.cursor = cursor;
2567 setSelection(bview);
2568 // What is this test for ??? (JMarc)
2569 if (!selection.set()) {
2570 deleteWordForward(bview);
2572 cutSelection(bview, true, false);
2578 // Change the case of a word at cursor position.
2579 // This function directly manipulates Paragraph::text because there
2580 // is no Paragraph::SetChar currently. I did what I could to ensure
2581 // that it is correct. I guess part of it should be moved to
2582 // Paragraph, but it will have to change for 1.1 anyway. At least
2583 // it does not access outside of the allocated array as the older
2584 // version did. (JMarc)
2585 void LyXText::changeCase(BufferView * bview, LyXText::TextCase action)
2590 if (selection.set()) {
2591 from = selection.start;
2594 getWord(from, to, PARTIAL_WORD);
2595 setCursor(bview, to.par(), to.pos() + 1);
2598 changeRegionCase(bview, from, to, action);
2602 void LyXText::changeRegionCase(BufferView * bview,
2603 LyXCursor const & from,
2604 LyXCursor const & to,
2605 LyXText::TextCase action)
2607 lyx::Assert(from <= to);
2609 setUndo(bview, Undo::FINISH, from.par(), to.par()->next());
2611 pos_type pos = from.pos();
2612 Paragraph * par = from.par();
2614 while (par && (pos != to.pos() || par != to.par())) {
2615 unsigned char c = par->getChar(pos);
2616 if (!IsInsetChar(c) && !IsHfillChar(c)) {
2618 case text_lowercase:
2621 case text_capitalization:
2623 action = text_lowercase;
2625 case text_uppercase:
2630 par->setChar(pos, c);
2631 checkParagraph(bview, par, pos);
2634 if (pos == par->size()) {
2639 if (to.row() != from.row()) {
2640 refresh_y = from.y() - from.row()->baseline();
2641 refresh_row = from.row();
2642 status(bview, LyXText::NEED_MORE_REFRESH);
2647 void LyXText::transposeChars(BufferView & bview)
2649 Paragraph * tmppar = cursor.par();
2651 setUndo(&bview, Undo::FINISH, tmppar, tmppar->next());
2653 pos_type tmppos = cursor.pos();
2655 // First decide if it is possible to transpose at all
2657 // We are at the beginning of a paragraph.
2658 if (tmppos == 0) return;
2660 // We are at the end of a paragraph.
2661 if (tmppos == tmppar->size() - 1) return;
2663 unsigned char c1 = tmppar->getChar(tmppos);
2664 unsigned char c2 = tmppar->getChar(tmppos - 1);
2666 if (c1 != Paragraph::META_INSET
2667 && c2 != Paragraph::META_INSET) {
2668 tmppar->setChar(tmppos, c2);
2669 tmppar->setChar(tmppos - 1, c1);
2671 // We should have an implementation that handles insets
2672 // as well, but that will have to come later. (Lgb)
2673 checkParagraph(const_cast<BufferView*>(&bview), tmppar, tmppos);
2677 void LyXText::Delete(BufferView * bview)
2679 // this is a very easy implementation
2681 LyXCursor old_cursor = cursor;
2682 int const old_cur_par_id = old_cursor.par()->id();
2683 int const old_cur_par_prev_id = old_cursor.par()->previous() ?
2684 old_cursor.par()->previous()->id() : 0;
2686 // just move to the right
2689 // CHECK Look at the comment here.
2690 // This check is not very good...
2691 // The cursorRightIntern calls DeleteEmptyParagrapgMechanism
2692 // and that can very well delete the par or par->previous in
2693 // old_cursor. Will a solution where we compare paragraph id's
2695 if ((cursor.par()->previous() ? cursor.par()->previous()->id() : 0)
2696 == old_cur_par_prev_id
2697 && cursor.par()->id() != old_cur_par_id) {
2698 // delete-empty-paragraph-mechanism has done it
2702 // if you had success make a backspace
2703 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
2704 LyXCursor tmpcursor = cursor;
2705 // to make sure undo gets the right cursor position
2706 cursor = old_cursor;
2707 setUndo(bview, Undo::DELETE,
2708 cursor.par(), cursor.par()->next());
2715 void LyXText::backspace(BufferView * bview)
2717 // Get the font that is used to calculate the baselineskip
2718 pos_type lastpos = cursor.par()->size();
2719 LyXFont rawparfont =
2720 cursor.par()->getFontSettings(bview->buffer()->params,
2723 if (cursor.pos() == 0) {
2724 // The cursor is at the beginning of a paragraph,
2725 // so the the backspace will collapse two paragraphs into one.
2727 // we may paste some paragraphs
2729 // is it an empty paragraph?
2732 || (lastpos == 1 && cursor.par()->isSeparator(0)))) {
2733 // This is an empty paragraph and we delete it just by moving the cursor one step
2734 // left and let the DeleteEmptyParagraphMechanism handle the actual deletion
2735 // of the paragraph.
2737 if (cursor.par()->previous()) {
2738 Paragraph * tmppar = cursor.par()->previous();
2739 if (cursor.par()->layout() == tmppar->layout()
2740 && cursor.par()->getAlign() == tmppar->getAlign()) {
2741 // Inherit bottom DTD from the paragraph below.
2742 // (the one we are deleting)
2743 tmppar->params().lineBottom(cursor.par()->params().lineBottom());
2744 tmppar->params().spaceBottom(cursor.par()->params().spaceBottom());
2745 tmppar->params().pagebreakBottom(cursor.par()->params().pagebreakBottom());
2750 // the layout things can change the height of a row !
2751 int const tmpheight = cursor.row()->height();
2752 setHeightOfRow(bview, cursor.row());
2753 if (cursor.row()->height() != tmpheight) {
2754 refresh_y = cursor.y() - cursor.row()->baseline();
2755 refresh_row = cursor.row();
2756 status(bview, LyXText::NEED_MORE_REFRESH);
2762 if (cursor.par()->previous()) {
2763 setUndo(bview, Undo::DELETE,
2764 cursor.par()->previous(), cursor.par()->next());
2767 Paragraph * tmppar = cursor.par();
2768 Row * tmprow = cursor.row();
2770 // We used to do cursorLeftIntern() here, but it is
2771 // not a good idea since it triggers the auto-delete
2772 // mechanism. So we do a cursorLeftIntern()-lite,
2773 // without the dreaded mechanism. (JMarc)
2774 if (cursor.par()->previous()) {
2775 // steps into the above paragraph.
2776 setCursorIntern(bview, cursor.par()->previous(),
2777 cursor.par()->previous()->size(),
2781 // Pasting is not allowed, if the paragraphs have different
2782 // layout. I think it is a real bug of all other
2783 // word processors to allow it. It confuses the user.
2784 // Even so with a footnote paragraph and a non-footnote
2785 // paragraph. I will not allow pasting in this case,
2786 // because the user would be confused if the footnote behaves
2787 // different wether it is open or closed.
2789 // Correction: Pasting is always allowed with standard-layout
2790 LyXTextClass const & tclass = textclasslist[bview->buffer()->params.textclass];
2792 if (cursor.par() != tmppar
2793 && (cursor.par()->layout() == tmppar->layout()
2794 || tmppar->layout() == tclass.defaultLayoutName())
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, cursor.row());
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()->size() &&
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
3026 [bview->buffer()->params.textclass]
3027 [cursor.par()->layout()].margintype == MARGIN_RIGHT_ADDRESS_BOX) {
3028 redoDrawingOfParagraph(bview, cursor);
3034 bool LyXText::paintRowBackground(DrawRowParams & p)
3036 bool clear_area = true;
3038 LyXFont font(LyXFont::ALL_SANE);
3040 pos_type const last = rowLastPrintable(p.row);
3042 if (!p.bv->screen()->forceClear() && last == p.row->pos()
3043 && p.row->par()->isInset(p.row->pos())) {
3044 inset = p.row->par()->getInset(p.row->pos());
3046 clear_area = inset->doClearArea();
3056 int const y = p.yo < 0 ? 0 : p.yo;
3057 int const h = p.yo < 0 ? p.row->height() + p.yo : p.row->height();
3058 p.pain->fillRectangle(x, y, p.width, h, backgroundColor());
3065 int h = p.row->baseline() - inset->ascent(p.bv, font);
3067 // first clear the whole row above the inset!
3069 p.pain->fillRectangle(p.xo, p.yo, p.width, h, backgroundColor());
3072 // clear the space below the inset!
3073 h += inset->ascent(p.bv, font) + inset->descent(p.bv, font);
3074 if ((p.row->height() - h) > 0) {
3075 p.pain->fillRectangle(p.xo, p.yo + h,
3076 p.width, p.row->height() - h, backgroundColor());
3079 // clear the space behind the inset, if needed
3080 if (!inset->display() && !inset->needFullRow()) {
3081 int const xp = int(p.x) + inset->width(p.bv, font);
3082 if (p.width - xp > 0) {
3083 p.pain->fillRectangle(xp, p.yo, p.width - xp,
3084 p.row->height(), backgroundColor());
3092 void LyXText::paintRowSelection(DrawRowParams & p)
3094 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3096 // the current selection
3097 int const startx = selection.start.x();
3098 int const endx = selection.end.x();
3099 int const starty = selection.start.y();
3100 int const endy = selection.end.y();
3101 Row const * startrow = selection.start.row();
3102 Row const * endrow = selection.end.row();
3106 if (bidi_same_direction) {
3110 int h = row->height();
3112 if (startrow == row && endrow == row) {
3113 if (startx < endx) {
3116 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3120 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3122 } else if (startrow == row) {
3123 int const x = (is_rtl) ? p.xo : (p.xo + startx);
3124 int const w = (is_rtl) ? startx : (p.width - startx);
3125 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3126 } else if (endrow == row) {
3127 int const x = (is_rtl) ? (p.xo + endx) : p.xo;
3128 int const w = (is_rtl) ? (p.width - endx) : endx;
3129 p.pain->fillRectangle(x, y, w, h, LColor::selection);
3130 } else if (p.y > starty && p.y < endy) {
3131 p.pain->fillRectangle(p.xo, y, p.width, h, LColor::selection);
3134 } else if (startrow != row && endrow != row) {
3136 int h = row->height();
3137 if (p.y > starty && p.y < endy) {
3138 p.pain->fillRectangle(p.xo, p.yo, w, h, LColor::selection);
3143 if (!((startrow != row && !is_rtl) || (endrow != row && is_rtl))) {
3149 p.pain->fillRectangle(p.xo, p.yo, int(p.x), row->height(), LColor::selection);
3151 Buffer const * buffer = p.bv->buffer();
3152 Paragraph * par = row->par();
3153 pos_type main_body = beginningOfMainBody(buffer, par);
3154 pos_type const last = rowLastPrintable(row);
3156 for (pos_type vpos = row->pos(); vpos <= last; ++vpos) {
3157 pos_type pos = vis2log(vpos);
3158 float const old_tmpx = tmpx;
3159 if (main_body > 0 && pos == main_body - 1) {
3160 LyXLayout const & layout =
3162 [buffer->params.textclass]
3164 LyXFont const lfont = getLabelFont(buffer, par);
3166 tmpx += p.label_hfill + font_metrics::width(layout.labelsep, lfont);
3168 if (par->isLineSeparator(main_body - 1))
3169 tmpx -= singleWidth(p.bv, par, main_body - 1);
3172 if (hfillExpansion(buffer, row, pos)) {
3173 tmpx += singleWidth(p.bv, par, pos);
3174 if (pos >= main_body)
3177 tmpx += p.label_hfill;
3180 else if (par->isSeparator(pos)) {
3181 tmpx += singleWidth(p.bv, par, pos);
3182 if (pos >= main_body)
3183 tmpx += p.separator;
3185 tmpx += singleWidth(p.bv, par, pos);
3188 if ((startrow != row || selection.start.pos() <= pos) &&
3189 (endrow != row || pos < selection.end.pos())) {
3190 // Here we do not use p.x as p.xo was added to p.x.
3191 p.pain->fillRectangle(int(old_tmpx), p.yo,
3192 int(tmpx - old_tmpx + 1),
3193 row->height(), LColor::selection);
3196 if ((startrow != row && is_rtl) || (endrow != row && !is_rtl)) {
3197 p.pain->fillRectangle(p.xo + int(tmpx),
3198 p.yo, int(p.bv->workWidth() - tmpx),
3199 row->height(), LColor::selection);
3205 void LyXText::paintRowAppendix(DrawRowParams & p)
3207 // FIXME: can be just p.width ?
3208 int const ww = p.bv->workWidth();
3209 Paragraph * firstpar = p.row->par();
3211 if (firstpar->params().appendix()) {
3212 p.pain->line(1, p.yo, 1, p.yo + p.row->height(), LColor::appendixline);
3213 p.pain->line(ww - 2, p.yo, ww - 2, p.yo + p.row->height(), LColor::appendixline);
3218 void LyXText::paintRowDepthBar(DrawRowParams & p)
3220 Paragraph::depth_type const depth = p.row->par()->getDepth();
3225 Paragraph::depth_type prev_depth = 0;
3226 if (p.row->previous())
3227 prev_depth = p.row->previous()->par()->getDepth();
3228 Paragraph::depth_type next_depth = 0;
3230 next_depth = p.row->next()->par()->getDepth();
3232 for (Paragraph::depth_type i = 1; i <= depth; ++i) {
3233 int const x = (LYX_PAPER_MARGIN / 5) * i + p.xo;
3234 int const h = p.yo + p.row->height() - 1 - (i - next_depth - 1) * 3;
3236 p.pain->line(x, p.yo, x, h, LColor::depthbar);
3238 int const w = LYX_PAPER_MARGIN / 5;
3240 if (i > prev_depth) {
3241 p.pain->fillRectangle(x, p.yo, w, 2, LColor::depthbar);
3243 if (i > next_depth) {
3244 p.pain->fillRectangle(x, h, w, 2, LColor::depthbar);
3250 int LyXText::getLengthMarkerHeight(BufferView * bv, VSpace const & vsp) const
3252 int const arrow_size = 4;
3253 int const space_size = int(vsp.inPixels(bv));
3255 if (vsp.kind() != VSpace::LENGTH) {
3261 int const min_size = max(3 * arrow_size,
3262 font_metrics::maxAscent(font)
3263 + font_metrics::maxDescent(font));
3265 if (vsp.length().len().value() < 0.0)
3268 return max(min_size, space_size);
3272 int LyXText::drawLengthMarker(DrawRowParams & p, string const & prefix,
3273 VSpace const & vsp, int start)
3275 int const arrow_size = 4;
3276 int const size = getLengthMarkerHeight(p.bv, vsp);
3277 int const end = start + size;
3279 // the label to display (if any)
3281 // y-values for top arrow
3283 // y-values for bottom arrow
3285 switch (vsp.kind()) {
3286 case VSpace::LENGTH:
3288 str = prefix + " (" + vsp.asLyXCommand() + ")";
3289 // adding or removing space
3290 bool const added = !(vsp.length().len().value() < 0.0);
3291 ty1 = added ? (start + arrow_size) : start;
3292 ty2 = added ? start : (start + arrow_size);
3293 by1 = added ? (end - arrow_size) : end;
3294 by2 = added ? end : (end - arrow_size);
3297 case VSpace:: VFILL:
3298 str = prefix + " (vertical fill)";
3303 // nothing to draw here
3307 int const leftx = p.xo + leftMargin(p.bv, p.row);
3308 int const midx = leftx + arrow_size;
3309 int const rightx = midx + arrow_size;
3317 font.setColor(LColor::added_space).decSize();
3318 font_metrics::rectText(str, font, w, a, d);
3320 p.pain->rectText(leftx + 2 * arrow_size + 5,
3321 start + ((end - start) / 2) + d,
3327 p.pain->line(leftx, ty1, midx, ty2, LColor::added_space);
3328 p.pain->line(midx, ty2, rightx, ty1, LColor::added_space);
3331 p.pain->line(leftx, by1, midx, by2, LColor::added_space);
3332 p.pain->line(midx, by2, rightx, by1, LColor::added_space);
3335 p.pain->line(midx, ty2, midx, by2, LColor::added_space);
3341 void LyXText::paintFirstRow(DrawRowParams & p)
3343 Paragraph * par = p.row->par();
3344 ParagraphParameters const & parparams = par->params();
3346 // start of appendix?
3347 if (parparams.startOfAppendix()) {
3348 p.pain->line(1, p.yo, p.width - 2, p.yo, LColor::appendixline);
3353 // think about the margins
3354 if (!p.row->previous() && bv_owner)
3355 y_top += LYX_PAPER_MARGIN;
3357 // draw a top pagebreak
3358 if (parparams.pagebreakTop()) {
3359 int const y = p.yo + y_top + 2*defaultHeight();
3360 p.pain->line(p.xo, y, p.xo + p.width, y,
3361 LColor::pagebreak, Painter::line_onoffdash);
3368 pb_font.setColor(LColor::pagebreak).decSize();
3369 font_metrics::rectText(_("Page Break (top)"), pb_font, w, a, d);
3370 p.pain->rectText((p.width - w)/2, y + d,
3371 _("Page Break (top)"), pb_font,
3374 y_top += 3 * defaultHeight();
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 LyXTextClass const & tclass = textclasslist[buffer->params.textclass];
3384 LyXLayout const & layout = tclass[par->layout()];
3386 // think about the parskip
3387 // some parskips VERY EASY IMPLEMENTATION
3388 if (buffer->params.paragraph_separation == BufferParams::PARSEP_SKIP) {
3389 if (par->previous()) {
3390 if (layout.latextype == LATEX_PARAGRAPH
3391 && !par->getDepth()) {
3392 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3394 LyXLayout const & playout =
3395 tclass[par->previous()->layout()];
3396 if (playout.latextype == LATEX_PARAGRAPH
3397 && !par->previous()->getDepth()) {
3398 // is it right to use defskip here, too? (AS)
3399 y_top += buffer->params.getDefSkip().inPixels(p.bv);
3405 int const ww = p.bv->workWidth();
3408 if (parparams.lineTop()) {
3409 LyXFont font(LyXFont::ALL_SANE);
3410 int const asc = font_metrics::ascent('x', getFont(buffer, par, 0));
3414 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3415 int const xp = static_cast<int>(inset_owner ? p.xo : 0);
3416 p.pain->line(xp, p.yo + y_top, xp + w, p.yo + y_top,
3417 LColor::topline, Painter::line_solid,
3418 Painter::line_thick);
3423 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3425 // should we print a label?
3426 if (layout.labeltype >= LABEL_STATIC
3427 && (layout.labeltype != LABEL_STATIC
3428 || layout.latextype != LATEX_ENVIRONMENT
3429 || par->isFirstInSequence())) {
3431 LyXFont font = getLabelFont(buffer, par);
3432 if (!par->getLabelstring().empty()) {
3434 string const str = par->getLabelstring();
3436 // this is special code for the chapter layout. This is
3437 // printed in an extra row and has a pagebreak at
3439 if (layout.labeltype == LABEL_COUNTER_CHAPTER) {
3440 if (buffer->params.secnumdepth >= 0) {
3441 float spacing_val = 1.0;
3442 if (!parparams.spacing().isDefault()) {
3443 spacing_val = parparams.spacing().getValue();
3445 spacing_val = buffer->params.spacing.getValue();
3449 int(font_metrics::maxDescent(font) * layout.spacing.getValue() * spacing_val)
3450 + int(layout.parsep) * defaultHeight();
3453 x = ww - leftMargin(p.bv, p.row) -
3454 font_metrics::width(str, font);
3457 p.pain->text(int(x),
3458 p.yo + p.row->baseline() -
3459 p.row->ascent_of_text() - maxdesc,
3464 x = ww - leftMargin(p.bv, p.row)
3465 + font_metrics::width(layout.labelsep, font);
3467 x = p.x - font_metrics::width(layout.labelsep, font)
3468 - font_metrics::width(str, font);
3471 p.pain->text(int(x), p.yo + p.row->baseline(), str, font);
3474 // the labels at the top of an environment.
3475 // More or less for bibliography
3476 } else if (par->isFirstInSequence() &&
3477 (layout.labeltype == LABEL_TOP_ENVIRONMENT ||
3478 layout.labeltype == LABEL_BIBLIO ||
3479 layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) {
3480 LyXFont font = getLabelFont(buffer, par);
3481 if (!par->getLabelstring().empty()) {
3482 string const str = par->getLabelstring();
3483 float spacing_val = 1.0;
3484 if (!parparams.spacing().isDefault()) {
3485 spacing_val = parparams.spacing().getValue();
3487 spacing_val = buffer->params.spacing.getValue();
3491 int(font_metrics::maxDescent(font) * layout.spacing.getValue() * spacing_val
3492 + (layout.labelbottomsep * defaultHeight()));
3495 if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
3496 x = ((is_rtl ? leftMargin(p.bv, p.row) : p.x)
3497 + ww - rightMargin(buffer, p.row)) / 2;
3498 x -= font_metrics::width(str, font) / 2;
3499 } else if (is_rtl) {
3500 x = ww - leftMargin(p.bv, p.row) -
3501 font_metrics::width(str, font);
3503 p.pain->text(int(x), p.yo + p.row->baseline()
3504 - p.row->ascent_of_text() - maxdesc,
3509 if (layout.labeltype == LABEL_BIBLIO && par->bibkey) {
3510 LyXFont font = getLayoutFont(buffer, par);
3513 x = ww - leftMargin(p.bv, p.row)
3514 + font_metrics::width(layout.labelsep, font);
3516 x = p.x - font_metrics::width(layout.labelsep, font)
3517 - par->bibkey->width(p.bv, font);
3519 par->bibkey->draw(p.bv, font, p.yo + p.row->baseline(), x, p.cleared);
3524 void LyXText::paintLastRow(DrawRowParams & p)
3526 Paragraph * par = p.row->par();
3527 ParagraphParameters const & parparams = par->params();
3528 int y_bottom = p.row->height() - 1;
3530 // think about the margins
3531 if (!p.row->next() && bv_owner)
3532 y_bottom -= LYX_PAPER_MARGIN;
3534 int const ww = p.bv->workWidth();
3536 // draw a bottom pagebreak
3537 if (parparams.pagebreakBottom()) {
3539 pb_font.setColor(LColor::pagebreak).decSize();
3540 int const y = p.yo + y_bottom - 2 * defaultHeight();
3542 p.pain->line(p.xo, y, p.xo + p.width, y, LColor::pagebreak,
3543 Painter::line_onoffdash);
3548 font_metrics::rectText(_("Page Break (bottom)"), pb_font, w, a, d);
3549 p.pain->rectText((ww - w) / 2, y + d,
3550 _("Page Break (bottom)"),
3551 pb_font, backgroundColor(), backgroundColor());
3553 y_bottom -= 3 * defaultHeight();
3556 // draw the additional space if needed:
3557 int const height = getLengthMarkerHeight(p.bv,
3558 parparams.spaceBottom());
3559 y_bottom -= drawLengthMarker(p, _("Space below"),
3560 parparams.spaceBottom(),
3561 p.yo + y_bottom - height);
3563 Buffer const * buffer = p.bv->buffer();
3565 // draw a bottom line
3566 if (parparams.lineBottom()) {
3567 LyXFont font(LyXFont::ALL_SANE);
3568 int const asc = font_metrics::ascent('x',
3569 getFont(buffer, par,
3570 max(pos_type(0), par->size() - 1)));
3574 int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww);
3575 int const xp = static_cast<int>(inset_owner ? p.xo : 0);
3576 int const y = p.yo + y_bottom;
3577 p.pain->line(xp, y, xp + w, y, LColor::topline, Painter::line_solid,
3578 Painter::line_thick);
3583 bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params);
3584 int const endlabel = par->getEndLabel(buffer->params);
3589 case END_LABEL_FILLED_BOX:
3591 LyXFont const font = getLabelFont(buffer, par);
3592 int const size = int(0.75 * font_metrics::maxAscent(font));
3593 int const y = (p.yo + p.row->baseline()) - size;
3594 int x = is_rtl ? LYX_PAPER_MARGIN : ww - LYX_PAPER_MARGIN - size;
3596 if (p.row->fill() <= size)
3597 x += (size - p.row->fill() + 1) * (is_rtl ? -1 : 1);
3599 if (endlabel == END_LABEL_BOX) {
3600 p.pain->rectangle(x, y, size, size, LColor::eolmarker);
3602 p.pain->fillRectangle(x, y, size, size,
3607 case END_LABEL_STATIC:
3609 LyXFont font(LyXFont::ALL_SANE);
3610 string const & layout = par->layout();
3611 string const str = textclasslist[buffer->params.textclass][layout].endlabelstring();
3612 font = getLabelFont(buffer, par);
3613 int const x = is_rtl ?
3614 int(p.x) - font_metrics::width(str, font)
3615 : ww - rightMargin(buffer, p.row) - p.row->fill();
3616 p.pain->text(x, p.yo + p.row->baseline(), str, font);
3619 case END_LABEL_NO_LABEL:
3624 void LyXText::paintRowText(DrawRowParams & p)
3626 Paragraph * par = p.row->par();
3627 Buffer const * buffer = p.bv->buffer();
3629 pos_type const last = rowLastPrintable(p.row);
3630 pos_type main_body =
3631 beginningOfMainBody(buffer, par);
3632 if (main_body > 0 &&
3633 (main_body - 1 > last ||
3634 !par->isLineSeparator(main_body - 1))) {
3638 LyXLayout const & layout =
3639 textclasslist[buffer->params.textclass][par->layout()];
3641 pos_type vpos = p.row->pos();
3642 while (vpos <= last) {
3643 if (p.x > p.bv->workWidth())
3645 pos_type pos = vis2log(vpos);
3646 if (p.x + singleWidth(p.bv, par, pos) < 0) {
3647 p.x += singleWidth(p.bv, par, pos);
3651 if (main_body > 0 && pos == main_body - 1) {
3652 int const lwidth = font_metrics::width(layout.labelsep,
3653 getLabelFont(buffer, par));
3655 p.x += p.label_hfill + lwidth
3656 - singleWidth(p.bv, par, main_body - 1);
3659 if (par->isHfill(pos)) {
3662 int const y0 = p.yo + p.row->baseline();
3663 int const y1 = y0 - defaultHeight() / 2;
3665 p.pain->line(int(p.x), y1, int(p.x), y0,
3666 LColor::added_space);
3668 if (hfillExpansion(buffer, p.row, pos)) {
3669 int const y2 = (y0 + y1) / 2;
3671 if (pos >= main_body) {
3672 p.pain->line(int(p.x), y2,
3673 int(p.x + p.hfill), y2,
3674 LColor::added_space,
3675 Painter::line_onoffdash);
3678 p.pain->line(int(p.x), y2,
3679 int(p.x + p.label_hfill), y2,
3680 LColor::added_space,
3681 Painter::line_onoffdash);
3682 p.x += p.label_hfill;
3684 p.pain->line(int(p.x), y1,
3686 LColor::added_space);
3690 } else if (par->isSeparator(pos)) {
3691 p.x += singleWidth(p.bv, par, pos);
3692 if (pos >= main_body)
3703 void LyXText::getVisibleRow(BufferView * bv, int y_offset, int x_offset,
3704 Row * row, int y, bool cleared)
3706 if (row->height() <= 0) {
3707 lyxerr << "LYX_ERROR: row.height: "
3708 << row->height() << endl;
3714 // set up drawing parameters
3716 p.pain = &bv->painter();
3720 prepareToPrint(bv, row, p.x, p.separator, p.hfill, p.label_hfill);
3721 if (inset_owner && (p.x < 0))
3725 p.width = inset_owner ? inset_owner->textWidth(bv, true) : bv->workWidth();
3726 p.cleared = cleared;
3730 // clear to background if necessary
3731 p.cleared = paintRowBackground(p);
3733 // paint the selection background
3734 if (selection.set()) {
3735 paintRowSelection(p);
3738 // vertical lines for appendix
3739 paintRowAppendix(p);
3741 // environment depth brackets
3742 paintRowDepthBar(p);
3744 // draw any stuff wanted for a first row of a paragraph
3749 // draw any stuff wanted for the last row of a paragraph
3750 if (!row->next() || (row->next()->par() != row->par())) {
3759 int LyXText::defaultHeight() const
3761 LyXFont font(LyXFont::ALL_SANE);
3762 return int(font_metrics::maxAscent(font)
3763 + font_metrics::maxDescent(font) * 1.5);
3767 // returns the column near the specified x-coordinate of the row
3768 // x is set to the real beginning of this column
3770 LyXText::getColumnNearX(BufferView * bview, Row * row, int & x,
3771 bool & boundary) const
3774 float fill_separator;
3776 float fill_label_hfill;
3778 prepareToPrint(bview, row, tmpx, fill_separator,
3779 fill_hfill, fill_label_hfill);
3781 pos_type vc = row->pos();
3782 pos_type last = rowLastPrintable(row);
3784 LyXLayout const & layout =
3785 textclasslist[bview->buffer()->params.textclass][
3786 row->par()->layout()];
3787 bool left_side = false;
3789 pos_type main_body = beginningOfMainBody(bview->buffer(), row->par());
3790 float last_tmpx = tmpx;
3792 if (main_body > 0 &&
3793 (main_body - 1 > last ||
3794 !row->par()->isLineSeparator(main_body - 1)))
3797 while (vc <= last && tmpx <= x) {
3800 if (main_body > 0 && c == main_body-1) {
3801 tmpx += fill_label_hfill +
3802 font_metrics::width(layout.labelsep,
3803 getLabelFont(bview->buffer(), row->par()));
3804 if (row->par()->isLineSeparator(main_body - 1))
3805 tmpx -= singleWidth(bview, row->par(), main_body-1);
3808 if (hfillExpansion(bview->buffer(), row, c)) {
3809 x += singleWidth(bview, row->par(), c);
3813 tmpx += fill_label_hfill;
3815 else if (row->par()->isSeparator(c)) {
3816 tmpx += singleWidth(bview, row->par(), c);
3818 tmpx+= fill_separator;
3820 tmpx += singleWidth(bview, row->par(), c);
3824 if ((tmpx + last_tmpx) / 2 > x) {
3829 if (vc > last + 1) // This shouldn't happen.
3833 bool const lastrow = lyxrc.rtl_support // This is not needed, but gives
3834 // some speedup if rtl_support=false
3835 && (!row->next() || row->next()->par() != row->par());
3836 bool const rtl = (lastrow)
3837 ? row->par()->isRightToLeftPar(bview->buffer()->params)
3838 : false; // If lastrow is false, we don't need to compute
3839 // the value of rtl.
3841 if (row->pos() > last) // Row is empty?
3844 ((rtl && left_side && vc == row->pos() && x < tmpx - 5) ||
3845 (!rtl && !left_side && vc == last + 1 && x > tmpx + 5)))
3847 else if (vc == row->pos()) {
3849 if (bidi_level(c) % 2 == 1)
3852 c = vis2log(vc - 1);
3853 bool const rtl = (bidi_level(c) % 2 == 1);
3854 if (left_side == rtl) {
3856 boundary = isBoundary(bview->buffer(), row->par(), c);
3860 if (row->pos() <= last && c > last
3861 && row->par()->isNewline(last)) {
3862 if (bidi_level(last) % 2 == 0)
3863 tmpx -= singleWidth(bview, row->par(), last);
3865 tmpx += singleWidth(bview, row->par(), last);
3875 // returns pointer to a specified row
3876 Row * LyXText::getRow(Paragraph * par, pos_type pos, int & y) const
3881 Row * tmprow = firstrow;
3884 // find the first row of the specified paragraph
3885 while (tmprow->next() && tmprow->par() != par) {
3886 y += tmprow->height();
3887 tmprow = tmprow->next();
3890 // now find the wanted row
3891 while (tmprow->pos() < pos
3893 && tmprow->next()->par() == par
3894 && tmprow->next()->pos() <= pos) {
3895 y += tmprow->height();
3896 tmprow = tmprow->next();
3903 Row * LyXText::getRowNearY(int & y) const
3906 // If possible we should optimize this method. (Lgb)
3907 Row * tmprow = firstrow;
3910 while (tmprow->next() && tmpy + tmprow->height() <= y) {
3911 tmpy += tmprow->height();
3912 tmprow = tmprow->next();
3915 y = tmpy; // return the real y
3917 //lyxerr << "returned y = " << y << endl;
3921 // Search from the current cursor position.
3923 Row * tmprow = cursor.row();
3924 int tmpy = cursor.y() - tmprow->baseline();
3926 lyxerr << "cursor.y() = " << tmpy << endl;
3927 lyxerr << "tmprow->height() = " << tmprow->height() << endl;
3928 lyxerr << "tmprow->baseline() = " << tmprow->baseline() << endl;
3929 lyxerr << "first = " << first << endl;
3930 lyxerr << "y = " << y << endl;
3933 lyxerr << "up" << endl;
3935 while (tmprow && tmpy - tmprow->height() >= y) {
3936 tmpy -= tmprow->height();
3937 tmprow = tmprow->previous();
3941 tmpy -= tmprow->height();
3942 tmprow = tmprow->previous();
3943 } while (tmprow && tmpy - tmprow->height() >= y);
3945 } else if (y > tmpy) {
3946 lyxerr << "down" << endl;
3948 while (tmprow->next() && tmpy + tmprow->height() <= y) {
3949 tmpy += tmprow->height();
3950 tmprow = tmprow->next();
3953 lyxerr << "equal" << endl;
3956 y = tmpy; // return the real y
3958 lyxerr << "returned y = " << y << endl;
3966 int LyXText::getDepth() const
3968 return cursor.par()->getDepth();