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 * ====================================================== */
18 #include "paragraph.h"
19 #include "support/textutils.h"
20 #include "support/LAssert.h"
21 #include "support/lstrings.h"
22 #include "insets/insetbib.h"
23 #include "insets/insettext.h"
24 #include "insets/insetspecialchar.h"
25 #include "lyx_gui_misc.h"
27 #include "bufferparams.h"
36 #include "lyxscreen.h"
37 #include "bufferview_funcs.h"
38 #include "BufferView.h"
40 #include "ParagraphParameters.h"
41 #include "undo_funcs.h"
51 int const LYX_PAPER_MARGIN = 20;
55 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
58 int LyXText::workWidth(BufferView * bview) const
61 return inset_owner->textWidth(bview);
63 return bview->workWidth();
67 int LyXText::getRealCursorX(BufferView * bview) const
70 if (the_locking_inset && (the_locking_inset->getLyXText(bview)!=this))
71 x = the_locking_inset->getLyXText(bview)->getRealCursorX(bview);
76 unsigned char LyXText::transformChar(unsigned char c, Paragraph * par,
77 Paragraph::size_type pos) const
79 if (!Encodings::is_arabic(c))
80 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && isdigit(c))
81 return c + (0xb0 - '0');
85 unsigned char const prev_char = pos > 0 ? par->getChar(pos-1) : ' ';
86 unsigned char next_char = ' ';
88 for (Paragraph::size_type i = pos+1; i < par->size(); ++i)
89 if (!Encodings::IsComposeChar_arabic(par->getChar(i))) {
90 next_char = par->getChar(i);
94 if (Encodings::is_arabic(next_char)) {
95 if (Encodings::is_arabic(prev_char))
96 return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
98 return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
100 if (Encodings::is_arabic(prev_char))
101 return Encodings::TransformChar(c, Encodings::FORM_FINAL);
103 return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
107 // This is the comments that some of the warnings below refers to.
108 // There are some issues in this file and I don't think they are
109 // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that
110 // this is a problem that has been here almost from day one and that a
111 // larger userbase with differenct access patters triggers the bad
112 // behaviour. (segfaults.) What I think happen is: In several places
113 // we store the paragraph in the current cursor and then moves the
114 // cursor. This movement of the cursor will delete paragraph at the
115 // old position if it is now empty. This will make the temporary
116 // pointer to the old cursor paragraph invalid and dangerous to use.
117 // And is some cases this will trigger a segfault. I have marked some
118 // of the cases where this happens with a warning, but I am sure there
119 // are others in this file and in text2.C. There is also a note in
120 // Delete() that you should read. In Delete I store the paragraph->id
121 // instead of a pointer to the paragraph. I am pretty sure this faulty
122 // use of temporary pointers to paragraphs that might have gotten
123 // invalidated (through a cursor movement) before they are used, are
124 // the cause of the strange crashes we get reported often.
126 // It is very tiresom to change this code, especially when it is as
127 // hard to read as it is. Help to fix all the cases where this is done
128 // would be greately appreciated.
132 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
133 Paragraph::size_type pos) const
135 char const c = par->getChar(pos);
136 return singleWidth(bview, par, pos, c);
140 int LyXText::singleWidth(BufferView * bview, Paragraph * par,
141 Paragraph::size_type pos, char c) const
143 LyXFont const font = getFont(bview->buffer(), par, pos);
145 // The most common case is handled first (Asger)
146 if (IsPrintable(c)) {
147 if (font.language()->RightToLeft()) {
148 if (font.language()->lang() == "arabic" &&
149 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
150 lyxrc.font_norm_type == LyXRC::ISO_10646_1))
151 if (Encodings::IsComposeChar_arabic(c))
154 c = transformChar(c, par, pos);
155 else if (font.language()->lang() == "hebrew" &&
156 Encodings::IsComposeChar_hebrew(c))
159 return lyxfont::width(c, font);
161 } else if (IsHfillChar(c)) {
162 return 3; /* Because of the representation
163 * as vertical lines */
164 } else if (c == Paragraph::META_INSET) {
165 Inset * tmpinset = par->getInset(pos);
167 #if 0 // seems not to be needed, but ...
168 tmpinset->update(bview, font);
170 return tmpinset->width(bview, font);
174 } else if (IsSeparatorChar(c))
176 else if (IsNewlineChar(c))
178 return lyxfont::width(c, font);
182 // Returns the paragraph position of the last character in the specified row
183 Paragraph::size_type LyXText::rowLast(Row const * row) const
185 if (row->next() == 0)
186 return row->par()->size() - 1;
187 else if (row->next()->par() != row->par())
188 return row->par()->size() - 1;
190 return row->next()->pos() - 1;
194 Paragraph::size_type LyXText::rowLastPrintable(Row const * row) const
196 Paragraph::size_type const last = rowLast(row);
197 if (last >= row->pos()
199 && row->next()->par() == row->par()
200 && row->par()->isSeparator(last))
207 void LyXText::computeBidiTables(Buffer const * buf, Row * row) const
209 bidi_same_direction = true;
210 if (!lyxrc.rtl_support) {
215 bidi_start = row->pos();
216 bidi_end = rowLastPrintable(row);
218 if (bidi_start > bidi_end) {
223 if (bidi_end + 2 - bidi_start >
224 static_cast<Paragraph::size_type>(log2vis_list.size())) {
225 Paragraph::size_type new_size =
226 (bidi_end + 2 - bidi_start < 500) ?
227 500 : 2 * (bidi_end + 2 - bidi_start);
228 log2vis_list.resize(new_size);
229 vis2log_list.resize(new_size);
230 bidi_levels.resize(new_size);
233 vis2log_list[bidi_end + 1 - bidi_start] = -1;
234 log2vis_list[bidi_end + 1 - bidi_start] = -1;
236 Paragraph::size_type stack[2];
238 row->par()->getParLanguage(buf->params)->RightToLeft();
242 Paragraph::size_type const main_body =
243 beginningOfMainBody(buf, row->par());
245 for (Paragraph::size_type lpos = bidi_start;
246 lpos <= bidi_end; ++lpos) {
247 bool is_space = row->par()->isLineSeparator(lpos);
248 Paragraph::size_type const pos =
249 (is_space && lpos + 1 <= bidi_end &&
250 !row->par()->isLineSeparator(lpos + 1) &&
251 !row->par()->isNewline(lpos + 1))
253 LyXFont font = row->par()->getFontSettings(buf->params, pos);
254 if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() &&
255 font.number() == LyXFont::ON &&
256 row->par()->getFontSettings(buf->params, lpos-1).number()
258 font = row->par()->getFontSettings(buf->params, lpos);
263 bool new_rtl = font.isVisibleRightToLeft();
264 bool new_rtl0 = font.isRightToLeft();
267 if (lpos == main_body - 1
268 && row->pos() < main_body - 1
270 new_level = (rtl_par) ? 1 : 0;
271 new_rtl = new_rtl0 = rtl_par;
273 new_level = (new_rtl) ? 1 : 2;
275 new_level = (rtl_par) ? 2 : 0;
277 if (is_space && new_level >= level) {
283 int new_level2 = new_level;
285 if (level == new_level && rtl0 != new_rtl0) {
287 log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1;
288 } else if (level < new_level) {
289 log2vis_list[lpos - bidi_start] = (rtl) ? -1 : 1;
290 if (new_level > rtl_par)
291 bidi_same_direction = false;
293 log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1;
296 bidi_levels[lpos - bidi_start] = new_level;
298 while (level > new_level2) {
299 Paragraph::size_type old_lpos =
301 int delta = lpos - old_lpos - 1;
304 log2vis_list[lpos - bidi_start] += delta;
305 log2vis_list[old_lpos - bidi_start] += delta;
307 while (level < new_level)
308 stack[level++] = lpos;
312 Paragraph::size_type const old_lpos = stack[--level];
313 int delta = bidi_end - old_lpos;
316 log2vis_list[old_lpos - bidi_start] += delta;
319 Paragraph::size_type vpos = bidi_start - 1;
320 for (Paragraph::size_type lpos = bidi_start;
321 lpos <= bidi_end; ++lpos) {
322 vpos += log2vis_list[lpos - bidi_start];
323 vis2log_list[vpos - bidi_start] = lpos;
324 log2vis_list[lpos - bidi_start] = vpos;
329 // This method requires a previous call to ComputeBidiTables()
330 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
331 Paragraph::size_type pos) const
333 if (!lyxrc.rtl_support || pos == 0)
336 if (!bidi_InRange(pos - 1)) {
337 /// This can happen if pos is the first char of a row.
338 /// Returning false in this case is incorrect!
342 bool const rtl = bidi_level(pos - 1) % 2;
343 bool const rtl2 = bidi_InRange(pos)
344 ? bidi_level(pos) % 2
345 : par->isRightToLeftPar(buf->params);
350 bool LyXText::isBoundary(Buffer const * buf, Paragraph * par,
351 Paragraph::size_type pos,
352 LyXFont const & font) const
354 if (!lyxrc.rtl_support)
355 return false; // This is just for speedup
357 bool const rtl = font.isVisibleRightToLeft();
358 bool const rtl2 = bidi_InRange(pos)
359 ? bidi_level(pos) % 2
360 : par->isRightToLeftPar(buf->params);
365 void LyXText::draw(BufferView * bview, Row const * row,
366 Paragraph::size_type & vpos,
367 int offset, float & x, bool cleared)
369 Painter & pain = bview->painter();
371 Paragraph::size_type pos = vis2log(vpos);
372 char c = row->par()->getChar(pos);
375 if (IsNewlineChar(c)) {
377 // Draw end-of-line marker
378 LyXFont const font = getFont(bview->buffer(), row->par(), pos);
379 int const wid = lyxfont::width('n', font);
380 int const asc = lyxfont::maxAscent(font);
381 int const y = offset + row->baseline();
385 if (bidi_level(pos) % 2 == 0) {
386 xp[0] = int(x + wid * 0.375);
387 yp[0] = int(y - 0.875 * asc * 0.75);
390 yp[1] = int(y - 0.500 * asc * 0.75);
392 xp[2] = int(x + wid * 0.375);
393 yp[2] = int(y - 0.125 * asc * 0.75);
395 pain.lines(xp, yp, 3, LColor::eolmarker);
398 yp[0] = int(y - 0.500 * asc * 0.75);
400 xp[1] = int(x + wid);
401 yp[1] = int(y - 0.500 * asc * 0.75);
403 xp[2] = int(x + wid);
404 yp[2] = int(y - asc * 0.75);
406 pain.lines(xp, yp, 3, LColor::eolmarker);
408 xp[0] = int(x + wid * 0.625);
409 yp[0] = int(y - 0.875 * asc * 0.75);
411 xp[1] = int(x + wid);
412 yp[1] = int(y - 0.500 * asc * 0.75);
414 xp[2] = int(x + wid * 0.625);
415 yp[2] = int(y - 0.125 * asc * 0.75);
417 pain.lines(xp, yp, 3, LColor::eolmarker);
419 xp[0] = int(x + wid);
420 yp[0] = int(y - 0.500 * asc * 0.75);
423 yp[1] = int(y - 0.500 * asc * 0.75);
426 yp[2] = int(y - asc * 0.75);
428 pain.lines(xp, yp, 3, LColor::eolmarker);
434 LyXFont font = getFont(bview->buffer(), row->par(), pos);
435 LyXFont font2 = font;
437 if (c == Paragraph::META_INSET) {
438 Inset * tmpinset = row->par()->getInset(pos);
440 tmpinset->update(bview, font, false);
441 tmpinset->draw(bview, font, offset+row->baseline(), x,
443 #ifdef SEEMS_TO_BE_NOT_NEEDED
444 if (status_ == CHANGED_IN_DRAW) {
445 UpdateInset(bview, tmpinset);
446 status(bview, CHANGED_IN_DRAW);
452 if (lyxrc.mark_foreign_language &&
453 font.language() != ignore_language &&
454 font.language() != bview->buffer()->params.language) {
455 int const y = offset + row->height() - 1;
456 pain.line(int(tmpx), y, int(x), y, LColor::language);
462 /* usual characters, no insets */
464 // Collect character that we can draw in one command
466 // This is dirty, but fast. Notice that it will never be too small.
467 // For the record, I'll note that Microsoft Word has a limit
468 // of 768 here. We have none :-) (Asger)
469 // Ok. I am the first to admit that the use of std::string will be
470 // a tiny bit slower than using a POD char array. However, I claim
471 // that this slowdown is so small that it is close to inperceptive.
472 // So IMHO we should go with the easier and clearer implementation.
473 // And even if 1024 is a large number here it might overflow, string
474 // will only overflow if the machine is out of memory...
475 static string textstring;
479 Paragraph::size_type const last = rowLastPrintable(row);
481 if (font.language()->lang() == "hebrew") {
482 if (Encodings::IsComposeChar_hebrew(c)) {
483 int const width = lyxfont::width(c, font2);
485 for (Paragraph::size_type i = pos-1; i >= 0; --i) {
486 c = row->par()->getChar(i);
487 if (!Encodings::IsComposeChar_hebrew(c)) {
488 if (IsPrintableNonspace(c)) {
493 dx = (c == 'ø' || c == 'ã') // dalet / resh
494 ? width2 - width : (width2 - width) / 2;
500 pain.text(int(x) + dx, offset + row->baseline(),
503 while (vpos <= last &&
504 (pos = vis2log(vpos)) >= 0
505 && IsPrintableNonspace(c = row->par()->getChar(pos))
506 && !Encodings::IsComposeChar_hebrew(c)
507 && font2 == getFont(bview->buffer(), row->par(), pos)) {
511 // Draw text and set the new x position
512 pain.text(int(x), offset + row->baseline(),
514 x += lyxfont::width(textstring, font);
516 } else if (font.language()->lang() == "arabic" &&
517 (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
518 lyxrc.font_norm_type == LyXRC::ISO_10646_1)) {
519 if (Encodings::IsComposeChar_arabic(c)) {
520 c = transformChar(c, row->par(), pos);
522 int const width = lyxfont::width(c, font2);
524 for (Paragraph::size_type i = pos-1; i >= 0; --i) {
525 c = row->par()->getChar(i);
526 if (!Encodings::IsComposeChar_arabic(c)) {
527 if (IsPrintableNonspace(c)) {
532 dx = (width2 - width) / 2;
538 pain.text(int(x) + dx, offset + row->baseline(),
541 textstring = transformChar(c, row->par(), pos);
542 while (vpos <= last &&
543 (pos = vis2log(vpos)) >= 0
544 && IsPrintableNonspace(c = row->par()->getChar(pos))
545 && !Encodings::IsComposeChar_arabic(c)
546 && font2 == getFont(bview->buffer(), row->par(), pos)) {
547 c = transformChar(c, row->par(), pos);
551 // Draw text and set the new x position
552 pain.text(int(x), offset + row->baseline(),
554 x += lyxfont::width(textstring, font);
557 while (vpos <= last &&
558 (pos = vis2log(vpos)) >= 0
559 && IsPrintableNonspace(c = row->par()->getChar(pos))
560 && font2 == getFont(bview->buffer(), row->par(), pos)) {
564 // Draw text and set the new x position
565 pain.text(int(x), offset + row->baseline(), textstring, font);
566 x += lyxfont::width(textstring, font);
570 if ((font.language() == inherit_language) ||
571 (font.language() == ignore_language))
572 lyxerr << "No this shouldn't happen!\n";
574 if (lyxrc.mark_foreign_language &&
575 font.language() != bview->buffer()->params.language) {
576 int const y = offset + row->height() - 1;
577 pain.line(int(tmpx), y, int(x), y,
581 // If we want ulem.sty support, drawing
582 // routines should go here. (Asger)
583 // Why shouldn't LyXFont::drawText handle it internally?
587 // Returns the left beginning of the text.
588 // This information cannot be taken from the layouts-objekt, because in
589 // LaTeX the beginning of the text fits in some cases (for example sections)
590 // exactly the label-width.
591 int LyXText::leftMargin(BufferView * bview, Row const * row) const
593 LyXLayout const & layout =
594 textclasslist.Style(bview->buffer()->params.textclass,
595 row->par()->getLayout());
597 string parindent = layout.parindent;
599 int x = LYX_PAPER_MARGIN;
601 x += lyxfont::signedWidth(textclasslist
602 .TextClass(bview->buffer()->params.textclass)
605 .TextClass(bview->buffer()->params.textclass)
608 // this is the way, LyX handles the LaTeX-Environments.
609 // I have had this idea very late, so it seems to be a
610 // later added hack and this is true
611 if (!row->par()->getDepth()) {
612 if (!row->par()->getLayout()) {
613 // find the previous same level paragraph
614 if (row->par()->previous()) {
615 Paragraph * newpar = row->par()
616 ->depthHook(row->par()->getDepth());
618 textclasslist.Style(bview->buffer()->params.textclass,
625 // find the next level paragraph
628 row->par()->outerHook();
630 // make a corresponding row. Needed to call LeftMargin()
632 // check wether it is a sufficent paragraph
635 .Style(bview->buffer()->params.textclass,
636 newpar->getLayout()).isEnvironment()) {
638 dummyrow.par(newpar);
639 dummyrow.pos(newpar->size());
640 x = leftMargin(bview, &dummyrow);
642 // this is no longer an error, because this function
643 // is used to clear impossible depths after changing
644 // a layout. Since there is always a redo,
645 // LeftMargin() is always called
646 row->par()->params().depth(0);
649 if (newpar && !row->par()->getLayout()) {
650 if (newpar->params().noindent())
653 parindent = textclasslist
654 .Style(bview->buffer()->params.textclass,
655 newpar->getLayout()).parindent;
660 LyXFont const labelfont = getFont(bview->buffer(), row->par(), -2);
661 switch (layout.margintype) {
663 if (!layout.leftmargin.empty()) {
664 x += lyxfont::signedWidth(layout.leftmargin,
666 .TextClass(bview->buffer()->params.
670 if (!row->par()->getLabelstring().empty()) {
671 x += lyxfont::signedWidth(layout.labelindent,
673 x += lyxfont::width(row->par()->getLabelstring(),
675 x += lyxfont::width(layout.labelsep, labelfont);
679 x += lyxfont::signedWidth(layout.labelindent, labelfont);
680 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
681 if (!row->par()->getLabelWidthString().empty()) {
682 x += lyxfont::width(row->par()->getLabelWidthString(),
684 x += lyxfont::width(layout.labelsep, labelfont);
689 x += lyxfont::signedWidth(layout.leftmargin, textclasslist.TextClass(bview->buffer()->params.textclass).defaultfont()) * 4
690 / (row->par()->getDepth() + 4);
692 case MARGIN_FIRST_DYNAMIC:
693 if (layout.labeltype == LABEL_MANUAL) {
694 if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) {
695 x += lyxfont::signedWidth(layout.leftmargin,
698 x += lyxfont::signedWidth(layout.labelindent,
701 } else if (row->pos()
702 // Special case to fix problems with
704 || (layout.labeltype == LABEL_STATIC
705 && layout.latextype == LATEX_ENVIRONMENT
706 && ! row->par()->isFirstInSequence())) {
707 x += lyxfont::signedWidth(layout.leftmargin,
709 } else if (layout.labeltype != LABEL_TOP_ENVIRONMENT
710 && layout.labeltype != LABEL_BIBLIO
711 && layout.labeltype !=
712 LABEL_CENTERED_TOP_ENVIRONMENT) {
713 x += lyxfont::signedWidth(layout.labelindent,
715 x += lyxfont::width(layout.labelsep, labelfont);
716 x += lyxfont::width(row->par()->getLabelstring(),
721 case MARGIN_RIGHT_ADDRESS_BOX:
723 // ok, a terrible hack. The left margin depends on the widest
724 // row in this paragraph. Do not care about footnotes, they
725 // are *NOT* allowed in the LaTeX realisation of this layout.
727 // find the first row of this paragraph
728 Row const * tmprow = row;
729 while (tmprow->previous()
730 && tmprow->previous()->par() == row->par())
731 tmprow = tmprow->previous();
733 int minfill = tmprow->fill();
734 while (tmprow->next() && tmprow->next()->par() == row->par()) {
735 tmprow = tmprow->next();
736 if (tmprow->fill() < minfill)
737 minfill = tmprow->fill();
740 x += lyxfont::signedWidth(layout.leftmargin,
742 .TextClass(bview->buffer()->params.textclass)
749 int align; // wrong type
751 if (row->par()->params().align() == LYX_ALIGN_LAYOUT)
752 align = layout.align;
754 align = row->par()->params().align();
756 // set the correct parindent
757 if (row->pos() == 0) {
758 if ((layout.labeltype == LABEL_NO_LABEL
759 || layout.labeltype == LABEL_TOP_ENVIRONMENT
760 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
761 || (layout.labeltype == LABEL_STATIC
762 && layout.latextype == LATEX_ENVIRONMENT
763 && ! row->par()->isFirstInSequence()))
764 && align == LYX_ALIGN_BLOCK
765 && !row->par()->params().noindent()
766 && (row->par()->layout ||
767 bview->buffer()->params.paragraph_separation ==
768 BufferParams::PARSEP_INDENT))
769 x += lyxfont::signedWidth(parindent,
771 .TextClass(bview->buffer()->params
774 else if (layout.labeltype == LABEL_BIBLIO) {
775 // ale970405 Right width for bibitems
776 x += bibitemMaxWidth(bview,textclasslist
777 .TextClass(bview->buffer()->params
786 int LyXText::rightMargin(Buffer const * buf, Row const * row) const
788 LyXLayout const & layout =
789 textclasslist.Style(buf->params.textclass,
790 row->par()->getLayout());
792 int x = LYX_PAPER_MARGIN
793 + lyxfont::signedWidth(textclasslist
794 .TextClass(buf->params.textclass)
797 .TextClass(buf->params.textclass)
800 // this is the way, LyX handles the LaTeX-Environments.
801 // I have had this idea very late, so it seems to be a
802 // later added hack and this is true
803 if (row->par()->getDepth()) {
804 // find the next level paragraph
806 Paragraph * newpar = row->par();
809 newpar = newpar->previous();
811 && newpar->getDepth() >= row->par()->getDepth());
813 // make a corresponding row. Needed to call LeftMargin()
815 // check wether it is a sufficent paragraph
817 && textclasslist.Style(buf->params.textclass,
821 dummyrow.par(newpar);
823 x = rightMargin(buf, &dummyrow);
825 // this is no longer an error, because this function
826 // is used to clear impossible depths after changing
827 // a layout. Since there is always a redo,
828 // LeftMargin() is always called
829 row->par()->params().depth(0);
833 //lyxerr << "rightmargin: " << layout->rightmargin << endl;
834 x += lyxfont::signedWidth(layout.rightmargin, textclasslist
835 .TextClass(buf->params.textclass)
836 .defaultfont()) * 4 / (row->par()->getDepth()
842 int LyXText::labelEnd(BufferView * bview, Row const * row) const
844 if (textclasslist.Style(bview->buffer()->params.textclass,
845 row->par()->getLayout()).margintype
849 tmprow.pos(row->par()->size());
850 return leftMargin(bview, &tmprow); /* just the beginning
853 return 0; /* LabelEnd is only needed, if the
854 layout fills a flushleft
859 // get the next breakpoint in a given paragraph
861 LyXText::nextBreakPoint(BufferView * bview, Row const * row, int width) const
863 Paragraph * par = row->par();
868 Paragraph::size_type const pos = row->pos();
871 // position of the last possible breakpoint
872 // -1 isn't a suitable value, but a flag
873 Paragraph::size_type last_separator = -1;
874 width -= rightMargin(bview->buffer(), row);
876 Paragraph::size_type const main_body =
877 beginningOfMainBody(bview->buffer(), par);
878 LyXLayout const & layout =
879 textclasslist.Style(bview->buffer()->params.textclass, par->getLayout());
880 Paragraph::size_type i = pos;
882 if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
883 /* special code for right address boxes, only newlines count */
884 while (i < par->size()) {
885 if (par->isNewline(i)) {
887 i = par->size() - 1; // this means break
889 } else if (par->getChar(i) == Paragraph::META_INSET &&
890 par->getInset(i) && par->getInset(i)->display()){
891 par->getInset(i)->display(false);
896 // Last position is an invariant
897 Paragraph::size_type const last =
899 // this is the usual handling
900 int x = leftMargin(bview, row);
901 bool doitonetime = true;
902 while (doitonetime || ((x < width) && (i < last))) {
904 char const c = par->getChar(i);
905 if (IsNewlineChar(c)) {
907 x = width; // this means break
908 } else if (c == Paragraph::META_INSET &&
911 // check wether a Display() inset is
912 // valid here. if not, change it to
914 if (par->getInset(i)->display() &&
915 (layout.isCommand() ||
916 (layout.labeltype == LABEL_MANUAL
917 && i < beginningOfMainBody(bview->buffer(), par)))) {
918 // display istn't allowd
919 par->getInset(i)->display(false);
920 x += singleWidth(bview, par, i, c);
921 } else if (par->getInset(i)->display() ||
922 par->getInset(i)->needFullRow()) {
923 // So break the line here
927 if (IsLineSeparatorChar(par->getChar(i+1)))
930 last_separator = last; // to avoid extra rows
932 last_separator = i - 1;
933 x = width; // this means break
935 x += singleWidth(bview, par, i, c);
938 if (IsLineSeparatorChar(c))
940 x += singleWidth(bview, par, i, c);
943 if (i == main_body) {
944 x += lyxfont::width(layout.labelsep,
945 getFont(bview->buffer(), par, -2));
946 if (par->isLineSeparator(i - 1))
947 x-= singleWidth(bview, par, i - 1);
948 int left_margin = labelEnd(bview, row);
953 // end of paragraph is always a suitable separator
954 if (i == last && x < width)
958 // well, if last_separator is still 0, the line isn't breakable.
959 // don't care and cut simply at the end
960 if (last_separator < 0) {
964 // manual labels cannot be broken in LaTeX, do not care
965 if (main_body && last_separator < main_body)
966 last_separator = main_body - 1;
968 return last_separator;
972 // returns the minimum space a row needs on the screen in pixel
973 int LyXText::fill(BufferView * bview, Row * row, int paper_width) const
979 // get the pure distance
980 Paragraph::size_type const last = rowLastPrintable(row);
982 // special handling of the right address boxes
983 if (textclasslist.Style(bview->buffer()->params.textclass,
984 row->par()->getLayout()).margintype
985 == MARGIN_RIGHT_ADDRESS_BOX) {
986 int const tmpfill = row->fill();
987 row->fill(0); // the minfill in MarginLeft()
988 w = leftMargin(bview, row);
991 w = leftMargin(bview, row);
993 LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
994 row->par()->getLayout());
995 Paragraph::size_type const main_body =
996 beginningOfMainBody(bview->buffer(), row->par());
997 Paragraph::size_type i = row->pos();
1000 if (main_body > 0 && i == main_body) {
1001 w += lyxfont::width(layout.labelsep, getFont(bview->buffer(), row->par(), -2));
1002 if (row->par()->isLineSeparator(i - 1))
1003 w -= singleWidth(bview, row->par(), i - 1);
1004 int left_margin = labelEnd(bview, row);
1005 if (w < left_margin)
1008 w += singleWidth(bview, row->par(), i);
1011 if (main_body > 0 && main_body > last) {
1012 w += lyxfont::width(layout.labelsep, getFont(bview->buffer(), row->par(), -2));
1013 if (last >= 0 && row->par()->isLineSeparator(last))
1014 w -= singleWidth(bview, row->par(), last);
1015 int const left_margin = labelEnd(bview, row);
1016 if (w < left_margin)
1020 int const fill = paper_width - w - rightMargin(bview->buffer(), row);
1021 #ifdef WITH_WARNINGS
1022 #warning Please fix me (Jug!)
1032 // returns the minimum space a manual label needs on the screen in pixel
1033 int LyXText::labelFill(BufferView * bview, Row const * row) const
1035 Paragraph::size_type last = beginningOfMainBody(bview->buffer(), row->par()) - 1;
1036 // -1 because a label ends either with a space that is in the label,
1037 // or with the beginning of a footnote that is outside the label.
1039 // I don't understand this code in depth, but sometimes "last" is
1040 // less than 0 and this causes a crash. This fix seems to work
1041 // correctly, but I bet the real error is elsewhere. The bug is
1042 // triggered when you have an open footnote in a paragraph
1043 // environment with a manual label. (Asger)
1044 if (last < 0) last = 0;
1046 if (row->par()->isLineSeparator(last)) /* a sepearator at this end
1053 w += singleWidth(bview, row->par(), i);
1058 if (!row->par()->params().labelWidthString().empty()) {
1059 fill = max(lyxfont::width(row->par()->params().labelWidthString(),
1060 getFont(bview->buffer(), row->par(), -2)) - w,
1068 // returns the number of separators in the specified row. The separator
1069 // on the very last column doesnt count
1070 int LyXText::numberOfSeparators(Buffer const * buf, Row const * row) const
1072 Paragraph::size_type const last = rowLast(row);
1073 Paragraph::size_type p =
1074 max(row->pos(), beginningOfMainBody(buf, row->par()));
1076 for (; p < last; ++p) {
1077 if (row->par()->isSeparator(p)) {
1085 // returns the number of hfills in the specified row. The LyX-Hfill is
1086 // a LaTeX \hfill so that the hfills at the beginning and at the end were
1087 // ignored. This is *MUCH* more usefull than not to ignore!
1088 int LyXText::numberOfHfills(Buffer const * buf, Row const * row) const
1090 Paragraph::size_type const last = rowLast(row);
1091 Paragraph::size_type first = row->pos();
1092 if (first) { /* hfill *DO* count at the beginning
1094 while(first <= last && row->par()->isHfill(first))
1098 first = max(first, beginningOfMainBody(buf, row->par()));
1100 for (int p = first; p <= last; ++p) { // last, because the end is ignored!
1101 if (row->par()->isHfill(p)) {
1109 // like NumberOfHfills, but only those in the manual label!
1110 int LyXText::numberOfLabelHfills(Buffer const * buf, Row const * row) const
1112 Paragraph::size_type last = rowLast(row);
1113 Paragraph::size_type first = row->pos();
1114 if (first) { /* hfill *DO* count at the beginning
1116 while(first < last && row->par()->isHfill(first))
1120 last = min(last, beginningOfMainBody(buf, row->par()));
1122 for (Paragraph::size_type p = first;
1123 p < last; ++p) { // last, because the end is ignored!
1124 if (row->par()->isHfill(p)) {
1132 // returns true, if a expansion is needed.
1133 // Rules are given by LaTeX
1134 bool LyXText::hfillExpansion(Buffer const * buf, Row const * row_ptr,
1135 Paragraph::size_type pos) const
1137 // by the way, is it a hfill?
1138 if (!row_ptr->par()->isHfill(pos))
1141 // at the end of a row it does not count
1142 if (pos >= rowLast(row_ptr))
1145 // at the beginning of a row it does not count, if it is not
1146 // the first row of a paragaph
1147 if (!row_ptr->pos())
1150 // in some labels it does not count
1151 if (textclasslist.Style(buf->params.textclass,
1152 row_ptr->par()->getLayout()).margintype
1154 && pos < beginningOfMainBody(buf, row_ptr->par()))
1157 // if there is anything between the first char of the row and
1158 // the sepcified position that is not a newline and not a hfill,
1159 // the hfill will count, otherwise not
1160 Paragraph::size_type i = row_ptr->pos();
1161 while (i < pos && (row_ptr->par()->isNewline(i)
1162 || row_ptr->par()->isHfill(i)))
1169 LColor::color LyXText::backgroundColor()
1172 return inset_owner->backgroundColor();
1174 return LColor::background;
1177 void LyXText::setHeightOfRow(BufferView * bview, Row * row_ptr) const
1179 /* get the maximum ascent and the maximum descent */
1182 float layoutasc = 0;
1183 float layoutdesc = 0;
1186 Inset * tmpinset = 0;
1188 /* this must not happen before the currentrow for clear reasons.
1189 so the trick is just to set the current row onto this row */
1191 getRow(row_ptr->par(), row_ptr->pos(), unused_y);
1193 /* ok , let us initialize the maxasc and maxdesc value.
1194 * This depends in LaTeX of the font of the last character
1195 * in the paragraph. The hack below is necessary because
1196 * of the possibility of open footnotes */
1198 /* Correction: only the fontsize count. The other properties
1199 are taken from the layoutfont. Nicer on the screen :) */
1200 Paragraph * par = row_ptr->par();
1201 Paragraph * firstpar = row_ptr->par();
1203 LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
1204 firstpar->getLayout());
1206 // as max get the first character of this row then it can increes but not
1207 // decrees the height. Just some point to start with so we don't have to
1208 // do the assignment below too often.
1209 LyXFont font = getFont(bview->buffer(), par, row_ptr->pos());
1210 LyXFont::FONT_SIZE const tmpsize = font.size();
1211 font = getFont(bview->buffer(), par, -1);
1212 LyXFont::FONT_SIZE const size = font.size();
1213 font.setSize(tmpsize);
1215 LyXFont labelfont = getFont(bview->buffer(), par, -2);
1217 float spacing_val = 1.0;
1218 if (!row_ptr->par()->params().spacing().isDefault()) {
1219 spacing_val = row_ptr->par()->params().spacing().getValue();
1221 spacing_val = bview->buffer()->params.spacing.getValue();
1223 //lyxerr << "spacing_val = " << spacing_val << endl;
1225 int maxasc = int(lyxfont::maxAscent(font) *
1226 layout.spacing.getValue() *
1228 int maxdesc = int(lyxfont::maxDescent(font) *
1229 layout.spacing.getValue() *
1231 int const pos_end = rowLast(row_ptr);
1235 // Check if any insets are larger
1236 for (int pos = row_ptr->pos(); pos <= pos_end; ++pos) {
1237 if (row_ptr->par()->getChar(pos) == Paragraph::META_INSET) {
1238 tmpfont = getFont(bview->buffer(), row_ptr->par(), pos);
1239 tmpinset = row_ptr->par()->getInset(pos);
1241 #if 1 // this is needed for deep update on initialitation
1242 tmpinset->update(bview, tmpfont);
1244 asc = tmpinset->ascent(bview, tmpfont);
1245 desc = tmpinset->descent(bview, tmpfont);
1246 maxwidth += tmpinset->width(bview, tmpfont);
1247 maxasc = max(maxasc, asc);
1248 maxdesc = max(maxdesc, desc);
1251 maxwidth += singleWidth(bview, row_ptr->par(), pos);
1255 // Check if any custom fonts are larger (Asger)
1256 // This is not completely correct, but we can live with the small,
1257 // cosmetic error for now.
1258 LyXFont::FONT_SIZE maxsize =
1259 row_ptr->par()->highestFontInRange(row_ptr->pos(), pos_end, size);
1260 if (maxsize > font.size()) {
1261 font.setSize(maxsize);
1263 asc = lyxfont::maxAscent(font);
1264 desc = lyxfont::maxDescent(font);
1271 // This is nicer with box insets:
1275 row_ptr->ascent_of_text(maxasc);
1277 // is it a top line?
1278 if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
1280 // some parksips VERY EASY IMPLEMENTATION
1281 if (bview->buffer()->params.paragraph_separation ==
1282 BufferParams::PARSEP_SKIP)
1284 if (layout.isParagraph()
1285 && firstpar->getDepth() == 0
1286 && firstpar->previous())
1288 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1289 } else if (firstpar->previous() &&
1290 textclasslist.Style(bview->buffer()->params.textclass,
1291 firstpar->previous()->
1292 getLayout()).isParagraph() &&
1293 firstpar->previous()->getDepth() == 0)
1295 // is it right to use defskip here too? (AS)
1296 maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1300 // the paper margins
1301 if (!row_ptr->par()->previous() && bv_owner)
1302 maxasc += LYX_PAPER_MARGIN;
1304 // add the vertical spaces, that the user added
1305 if (firstpar->params().spaceTop().kind() != VSpace::NONE)
1306 maxasc += int(firstpar->params().spaceTop().inPixels(bview));
1308 // do not forget the DTP-lines!
1309 // there height depends on the font of the nearest character
1310 if (firstpar->params().lineTop())
1311 maxasc += 2 * lyxfont::ascent('x', getFont(bview->buffer(),
1314 // and now the pagebreaks
1315 if (firstpar->params().pagebreakTop())
1316 maxasc += 3 * defaultHeight();
1318 // This is special code for the chapter, since the label of this
1319 // layout is printed in an extra row
1320 if (layout.labeltype == LABEL_COUNTER_CHAPTER
1321 && bview->buffer()->params.secnumdepth >= 0)
1323 float spacing_val = 1.0;
1324 if (!row_ptr->par()->params().spacing().isDefault()) {
1325 spacing_val = row_ptr->par()->params().spacing().getValue();
1327 spacing_val = bview->buffer()->params.spacing.getValue();
1330 labeladdon = int(lyxfont::maxDescent(labelfont) *
1331 layout.spacing.getValue() *
1333 + int(lyxfont::maxAscent(labelfont) *
1334 layout.spacing.getValue() *
1338 // special code for the top label
1339 if ((layout.labeltype == LABEL_TOP_ENVIRONMENT
1340 || layout.labeltype == LABEL_BIBLIO
1341 || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1342 && row_ptr->par()->isFirstInSequence()
1343 && !row_ptr->par()->getLabelstring().empty())
1345 float spacing_val = 1.0;
1346 if (!row_ptr->par()->params().spacing().isDefault()) {
1347 spacing_val = row_ptr->par()->params().spacing().getValue();
1349 spacing_val = bview->buffer()->params.spacing.getValue();
1353 (lyxfont::maxAscent(labelfont) *
1354 layout.spacing.getValue() *
1356 +(lyxfont::maxDescent(labelfont) *
1357 layout.spacing.getValue() *
1359 + layout.topsep * defaultHeight()
1360 + layout.labelbottomsep * defaultHeight());
1363 // and now the layout spaces, for example before and after a section,
1364 // or between the items of a itemize or enumerate environment
1366 if (!firstpar->params().pagebreakTop()) {
1367 Paragraph * prev = row_ptr->par()->previous();
1369 prev = row_ptr->par()->depthHook(row_ptr->par()->getDepth());
1370 if (prev && prev->getLayout() == firstpar->getLayout() &&
1371 prev->getDepth() == firstpar->getDepth() &&
1372 prev->getLabelWidthString() == firstpar->getLabelWidthString())
1374 layoutasc = (layout.itemsep * defaultHeight());
1375 } else if (row_ptr->previous()) {
1376 tmptop = layout.topsep;
1378 if (row_ptr->previous()->par()->getDepth() >= row_ptr->par()->getDepth())
1379 tmptop -= textclasslist.Style(bview->buffer()->params.textclass,
1380 row_ptr->previous()->par()->
1381 getLayout()).bottomsep;
1384 layoutasc = (tmptop * defaultHeight());
1385 } else if (row_ptr->par()->params().lineTop()) {
1386 tmptop = layout.topsep;
1389 layoutasc = (tmptop * defaultHeight());
1392 prev = row_ptr->par()->outerHook();
1394 maxasc += int(textclasslist.Style(bview->buffer()->params.textclass,
1395 prev->getLayout()).parsep * defaultHeight());
1397 if (firstpar->previous() &&
1398 firstpar->previous()->getDepth() == 0 &&
1399 firstpar->previous()->getLayout() !=
1400 firstpar->getLayout())
1403 } else if (firstpar->previous()) {
1404 maxasc += int(layout.parsep * defaultHeight());
1410 // is it a bottom line?
1411 if (row_ptr->par() == par
1412 && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par()))
1414 // the paper margins
1415 if (!par->next() && bv_owner)
1416 maxdesc += LYX_PAPER_MARGIN;
1418 // add the vertical spaces, that the user added
1419 if (firstpar->params().spaceBottom().kind() != VSpace::NONE)
1420 maxdesc += int(firstpar->params().spaceBottom().inPixels(bview));
1422 // do not forget the DTP-lines!
1423 // there height depends on the font of the nearest character
1424 if (firstpar->params().lineBottom())
1425 maxdesc += 2 * lyxfont::ascent('x',
1426 getFont(bview->buffer(),
1427 par, par->size() - 1));
1429 // and now the pagebreaks
1430 if (firstpar->params().pagebreakBottom())
1431 maxdesc += 3 * defaultHeight();
1433 // and now the layout spaces, for example before and after
1434 // a section, or between the items of a itemize or enumerate
1436 if (!firstpar->params().pagebreakBottom() && row_ptr->par()->next()) {
1437 Paragraph * nextpar = row_ptr->par()->next();
1438 Paragraph * comparepar = row_ptr->par();
1442 if (comparepar->getDepth() > nextpar->getDepth()) {
1443 usual = (textclasslist.Style(bview->buffer()->params.textclass,
1444 comparepar->getLayout()).bottomsep * defaultHeight());
1445 comparepar = comparepar->depthHook(nextpar->getDepth());
1446 if (comparepar->getLayout()!= nextpar->getLayout()
1447 || nextpar->getLabelWidthString() !=
1448 comparepar->getLabelWidthString())
1450 unusual = (textclasslist.Style(bview->buffer()->params.textclass,
1451 comparepar->getLayout()).bottomsep * defaultHeight());
1453 if (unusual > usual)
1454 layoutdesc = unusual;
1457 } else if (comparepar->getDepth() == nextpar->getDepth()) {
1459 if (comparepar->getLayout()!= nextpar->getLayout()
1460 || nextpar->getLabelWidthString() !=
1461 comparepar->getLabelWidthString())
1462 layoutdesc = int(textclasslist.Style(bview->buffer()->params.textclass,
1463 comparepar->getLayout()).bottomsep * defaultHeight());
1468 // incalculate the layout spaces
1469 maxasc += int(layoutasc * 2 / (2 + firstpar->getDepth()));
1470 maxdesc += int(layoutdesc * 2 / (2 + firstpar->getDepth()));
1472 // calculate the new height of the text
1473 height -= row_ptr->height();
1475 row_ptr->height(maxasc + maxdesc + labeladdon);
1476 row_ptr->baseline(maxasc + labeladdon);
1478 height += row_ptr->height();
1481 prepareToPrint(bview, row_ptr, x, dummy, dummy, dummy, false);
1482 row_ptr->width(int(maxwidth + x));
1485 width = max(0,workWidth(bview));
1487 if (r->width() > width)
1495 /* Appends the implicit specified paragraph behind the specified row,
1496 * start at the implicit given position */
1497 void LyXText::appendParagraph(BufferView * bview, Row * row) const
1499 bool not_ready = true;
1501 // The last character position of a paragraph is an invariant so we can
1502 // safely get it here. (Asger)
1503 int const lastposition = row->par()->size();
1505 // Get the next breakpoint
1506 int z = nextBreakPoint(bview, row, workWidth(bview));
1510 // Insert the new row
1511 if (z < lastposition) {
1513 insertRow(row, row->par(), z);
1520 // Set the dimensions of the row
1521 #ifdef WITH_WARNINGS
1522 #warning Something is rotten here! (Jug)
1524 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1525 setHeightOfRow(bview, tmprow);
1527 } while (not_ready);
1531 void LyXText::breakAgain(BufferView * bview, Row * row) const
1533 bool not_ready = true;
1536 // get the next breakpoint
1537 Paragraph::size_type z = nextBreakPoint(bview, row, workWidth(bview));
1540 if (z < row->par()->size()) {
1541 if (!row->next() || (row->next() && row->next()->par() != row->par())) {
1544 insertRow(row, row->par(), z);
1550 if (row->pos() == z)
1551 not_ready = false; // the rest will not change
1557 /* if there are some rows too much, delete them */
1558 /* only if you broke the whole paragraph! */
1559 Row * tmprow2 = row;
1560 while (tmprow2->next() && tmprow2->next()->par() == row->par()) {
1561 tmprow2 = tmprow2->next();
1563 while (tmprow2 != row) {
1564 tmprow2 = tmprow2->previous();
1565 removeRow(tmprow2->next());
1570 /* set the dimensions of the row */
1571 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1572 setHeightOfRow(bview, tmprow);
1573 } while (not_ready);
1577 // this is just a little changed version of break again
1578 void LyXText::breakAgainOneRow(BufferView * bview, Row * row)
1580 // get the next breakpoint
1581 Paragraph::size_type z = nextBreakPoint(bview, row, workWidth(bview));
1584 if (z < row->par()->size()) {
1586 || (row->next() && row->next()->par() != row->par())) {
1587 /* insert a new row */
1589 insertRow(row, row->par(), z);
1595 if (row->pos() != z)
1599 // if there are some rows too much, delete them
1600 // only if you broke the whole paragraph!
1601 Row * tmprow2 = row;
1602 while (tmprow2->next()
1603 && tmprow2->next()->par() == row->par()) {
1604 tmprow2 = tmprow2->next();
1606 while (tmprow2 != row) {
1607 tmprow2 = tmprow2->previous();
1608 removeRow(tmprow2->next());
1612 // set the dimensions of the row
1613 tmprow->fill(fill(bview, tmprow, workWidth(bview)));
1614 setHeightOfRow(bview, tmprow);
1618 void LyXText::breakParagraph(BufferView * bview, char keep_layout)
1620 LyXLayout const & layout =
1621 textclasslist.Style(bview->buffer()->params.textclass,
1622 cursor.par()->getLayout());
1624 // this is only allowed, if the current paragraph is not empty or caption
1625 if ((cursor.par()->size() <= 0)
1626 && layout.labeltype!= LABEL_SENSITIVE)
1629 setUndo(bview, Undo::INSERT,cursor.par(),cursor.par()->next());
1631 // Always break behind a space
1633 // It is better to erase the space (Dekel)
1634 if (cursor.pos() < cursor.par()->size()
1635 && cursor.par()->isLineSeparator(cursor.pos()))
1636 cursor.par()->erase(cursor.pos());
1637 // cursor.pos(cursor.pos() + 1);
1639 // break the paragraph
1643 keep_layout = layout.isEnvironment();
1644 cursor.par()->breakParagraph(bview->buffer()->params, cursor.pos(),
1647 // well this is the caption hack since one caption is really enough
1648 if (layout.labeltype == LABEL_SENSITIVE) {
1650 // set to standard-layout
1651 cursor.par()->setLayout(0);
1653 // set to standard-layout
1654 cursor.par()->next()->setLayout(0);
1657 /* if the cursor is at the beginning of a row without prior newline,
1659 * This touches only the screen-update. Otherwise we would may have
1660 * an empty row on the screen */
1661 if (cursor.pos() && !cursor.row()->par()->isNewline(cursor.row()->pos() - 1)
1662 && cursor.row()->pos() == cursor.pos()) {
1666 status(bview, LyXText::NEED_MORE_REFRESH);
1667 refresh_row = cursor.row();
1668 refresh_y = cursor.y() - cursor.row()->baseline();
1670 // Do not forget the special right address boxes
1671 if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1672 while (refresh_row->previous() &&
1673 refresh_row->previous()->par() == refresh_row->par()) {
1674 refresh_row = refresh_row->previous();
1675 refresh_y -= refresh_row->height();
1678 removeParagraph(cursor.row());
1680 // set the dimensions of the cursor row
1681 cursor.row()->fill(fill(bview, cursor.row(), workWidth(bview)));
1683 setHeightOfRow(bview, cursor.row());
1685 while (cursor.par()->next()->size()
1686 && cursor.par()->next()->isNewline(0))
1687 cursor.par()->next()->erase(0);
1689 insertParagraph(bview, cursor.par()->next(), cursor.row());
1691 updateCounters(bview, cursor.row()->previous());
1693 /* This check is necessary. Otherwise the new empty paragraph will
1694 * be deleted automatically. And it is more friendly for the user! */
1696 setCursor(bview, cursor.par()->next(), 0);
1698 setCursor(bview, cursor.par(), 0);
1700 if (cursor.row()->next())
1701 breakAgain(bview, cursor.row()->next());
1707 // Just a macro to make some thing easier.
1708 void LyXText::redoParagraph(BufferView * bview) const
1711 redoParagraphs(bview, cursor, cursor.par()->next());
1712 setCursorIntern(bview, cursor.par(), cursor.pos());
1716 /* insert a character, moves all the following breaks in the
1717 * same Paragraph one to the right and make a rebreak */
1718 void LyXText::insertChar(BufferView * bview, char c)
1720 setUndo(bview, Undo::INSERT,
1721 cursor.par(), cursor.par()->next());
1723 // When the free-spacing option is set for the current layout,
1724 // disable the double-space checking
1726 bool const freeSpacing =
1727 textclasslist.Style(bview->buffer()->params.textclass,
1728 cursor.row()->par()->getLayout()).free_spacing;
1731 if (lyxrc.auto_number) {
1732 static string const number_operators = "+-/*";
1733 static string const number_unary_operators = "+-";
1734 static string const number_seperators = ".,:";
1736 if (current_font.number() == LyXFont::ON) {
1737 if (!isdigit(c) && !contains(number_operators, c) &&
1738 !(contains(number_seperators, c) &&
1739 cursor.pos() >= 1 &&
1740 cursor.pos() < cursor.par()->size() &&
1741 getFont(bview->buffer(),
1743 cursor.pos()).number() == LyXFont::ON &&
1744 getFont(bview->buffer(),
1746 cursor.pos()-1).number() == LyXFont::ON)
1748 Number(bview); // Set current_font.number to OFF
1749 } else if (isdigit(c) &&
1750 real_current_font.isVisibleRightToLeft()) {
1751 Number(bview); // Set current_font.number to ON
1753 if (cursor.pos() > 0) {
1754 char const c = cursor.par()->getChar(cursor.pos() - 1);
1755 if (contains(number_unary_operators, c) &&
1756 (cursor.pos() == 1 ||
1757 cursor.par()->isSeparator(cursor.pos() - 2) ||
1758 cursor.par()->isNewline(cursor.pos() - 2) )
1760 setCharFont(bview->buffer(),
1764 } else if (contains(number_seperators, c) &&
1765 cursor.pos() >= 2 &&
1766 getFont(bview->buffer(),
1768 cursor.pos()-2).number() == LyXFont::ON) {
1769 setCharFont(bview->buffer(),
1779 /* First check, if there will be two blanks together or a blank at
1780 the beginning of a paragraph.
1781 I decided to handle blanks like normal characters, the main
1782 difference are the special checks when calculating the row.fill
1783 (blank does not count at the end of a row) and the check here */
1785 // The bug is triggered when we type in a description environment:
1786 // The current_font is not changed when we go from label to main text
1787 // and it should (along with realtmpfont) when we type the space.
1788 // CHECK There is a bug here! (Asger)
1790 LyXFont realtmpfont = real_current_font;
1791 LyXFont rawtmpfont = current_font; /* store the current font.
1792 * This is because of the use
1793 * of cursor movements. The moving
1794 * cursor would refresh the
1797 // Get the font that is used to calculate the baselineskip
1798 Paragraph::size_type const lastpos = cursor.par()->size();
1799 LyXFont rawparfont =
1800 cursor.par()->getFontSettings(bview->buffer()->params,
1803 bool jumped_over_space = false;
1805 if (!freeSpacing && IsLineSeparatorChar(c)) {
1806 if ((cursor.pos() > 0
1807 && cursor.par()->isLineSeparator(cursor.pos() - 1))
1808 || (cursor.pos() > 0
1809 && cursor.par()->isNewline(cursor.pos() - 1))
1810 || (cursor.pos() == 0)) {
1811 static bool sent_space_message = false;
1812 if (!sent_space_message) {
1813 if (cursor.pos() == 0)
1814 bview->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
1816 bview->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
1817 sent_space_message = true;
1822 } else if (IsNewlineChar(c)) {
1823 if (cursor.par() == cursor.par()
1824 && cursor.pos() <= beginningOfMainBody(bview->buffer(), cursor.par())) {
1828 /* No newline at first position
1829 * of a paragraph or behind labels.
1830 * TeX does not allow that. */
1832 if (cursor.pos() < cursor.par()->size() &&
1833 cursor.par()->isLineSeparator(cursor.pos()))
1834 // newline always after a blank!
1836 cursor.row()->fill(-1); // to force a new break
1839 // the display inset stuff
1840 if (cursor.row()->par()->getChar(cursor.row()->pos()) == Paragraph::META_INSET
1841 && cursor.row()->par()->getInset(cursor.row()->pos())
1842 && (cursor.row()->par()->getInset(cursor.row()->pos())->display() ||
1843 cursor.row()->par()->getInset(cursor.row()->pos())->needFullRow()))
1844 cursor.row()->fill(-1); // to force a new break
1846 // get the cursor row fist
1847 Row * row = cursor.row();
1848 int y = cursor.y() - row->baseline();
1849 if (c != Paragraph::META_INSET) /* Here case LyXText::InsertInset
1850 * already insertet the character */
1851 cursor.par()->insertChar(cursor.pos(), c);
1852 setCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont);
1854 if (!jumped_over_space) {
1855 // refresh the positions
1857 while (tmprow->next() && tmprow->next()->par() == row->par()) {
1858 tmprow = tmprow->next();
1859 tmprow->pos(tmprow->pos() + 1);
1863 // Is there a break one row above
1864 if ((cursor.par()->isLineSeparator(cursor.pos())
1865 || cursor.par()->isNewline(cursor.pos())
1866 || cursor.row()->fill() == -1)
1867 && row->previous() && row->previous()->par() == row->par()) {
1868 Paragraph::size_type z = nextBreakPoint(bview,
1871 if (z >= row->pos()) {
1874 // set the dimensions of the row above
1875 row->previous()->fill(fill(bview,
1879 setHeightOfRow(bview, row->previous());
1881 y -= row->previous()->height();
1883 refresh_row = row->previous();
1884 status(bview, LyXText::NEED_MORE_REFRESH);
1886 breakAgainOneRow(bview, row);
1888 current_font = rawtmpfont;
1889 real_current_font = realtmpfont;
1890 setCursor(bview, cursor.par(), cursor.pos() + 1,
1891 false, cursor.boundary());
1892 // cursor MUST be in row now.
1894 if (row->next() && row->next()->par() == row->par())
1895 need_break_row = row->next();
1899 // check, wether the last characters font has changed.
1900 if (cursor.pos() && cursor.pos() == cursor.par()->size()
1901 && rawparfont != rawtmpfont)
1902 redoHeightOfParagraph(bview, cursor);
1909 // recalculate the fill of the row
1910 if (row->fill() >= 0) /* needed because a newline
1911 * will set fill to -1. Otherwise
1912 * we would not get a rebreak! */
1913 row->fill(fill(bview, row, workWidth(bview)));
1914 if (row->fill() < 0) {
1917 refresh_x = cursor.x();
1918 refresh_pos = cursor.pos();
1919 status(bview, LyXText::NEED_MORE_REFRESH);
1920 breakAgainOneRow(bview, row);
1921 // will the cursor be in another row now?
1922 if (rowLast(row) <= cursor.pos() + 1 && row->next()) {
1923 if (row->next() && row->next()->par() == row->par())
1924 // this should always be true
1926 breakAgainOneRow(bview, row);
1928 current_font = rawtmpfont;
1929 real_current_font = realtmpfont;
1931 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
1933 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
1934 != cursor.boundary())
1935 setCursor(bview, cursor.par(), cursor.pos(), false,
1936 !cursor.boundary());
1937 if (row->next() && row->next()->par() == row->par())
1938 need_break_row = row->next();
1943 refresh_x = cursor.x();
1945 refresh_pos = cursor.pos();
1947 int const tmpheight = row->height();
1948 setHeightOfRow(bview, row);
1949 if (tmpheight == row->height())
1950 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
1952 status(bview, LyXText::NEED_MORE_REFRESH);
1954 current_font = rawtmpfont;
1955 real_current_font = realtmpfont;
1956 setCursor(bview, cursor.par(), cursor.pos() + 1, false,
1960 // check, wether the last characters font has changed.
1961 if (cursor.pos() && cursor.pos() == cursor.par()->size()
1962 && rawparfont != rawtmpfont) {
1963 redoHeightOfParagraph(bview, cursor);
1965 // now the special right address boxes
1966 if (textclasslist.Style(bview->buffer()->params.textclass,
1967 cursor.par()->getLayout()).margintype
1968 == MARGIN_RIGHT_ADDRESS_BOX) {
1969 redoDrawingOfParagraph(bview, cursor);
1977 void LyXText::charInserted()
1979 // Here we could call FinishUndo for every 20 characters inserted.
1980 // This is from my experience how emacs does it.
1981 static unsigned int counter;
1991 void LyXText::prepareToPrint(BufferView * bview,
1992 Row * row, float & x,
1993 float & fill_separator,
1995 float & fill_label_hfill,
2001 float w = row->fill();
2003 fill_label_hfill = 0;
2005 fill_label_hfill = 0;
2008 row->par()->isRightToLeftPar(bview->buffer()->params);
2010 x = (workWidth(bview) > 0)
2011 ? rightMargin(bview->buffer(), row) : 0;
2013 x = (workWidth(bview) > 0) ? leftMargin(bview, row) : 0;
2015 // is there a manual margin with a manual label
2016 if (textclasslist.Style(bview->buffer()->params.textclass,
2017 row->par()->getLayout()).margintype == MARGIN_MANUAL
2018 && textclasslist.Style(bview->buffer()->params.textclass,
2019 row->par()->getLayout()).labeltype == LABEL_MANUAL) {
2021 /* one more since labels are left aligned */
2022 nlh = numberOfLabelHfills(bview->buffer(), row) + 1;
2023 if (nlh && !row->par()->getLabelWidthString().empty()) {
2024 fill_label_hfill = labelFill(bview, row) / nlh;
2028 // are there any hfills in the row?
2029 float const nh = numberOfHfills(bview->buffer(), row);
2032 fill_hfill = w / nh;
2034 // is it block, flushleft or flushright?
2035 // set x how you need it
2037 if (row->par()->params().align() == LYX_ALIGN_LAYOUT)
2038 align = textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()).align;
2040 align = row->par()->params().align();
2042 // center displayed insets
2044 if (row->par()->getChar(row->pos()) == Paragraph::META_INSET
2045 && (inset=row->par()->getInset(row->pos()))
2046 && (inset->display())) // || (inset->scroll() < 0)))
2047 align = (inset->lyxCode() == Inset::MATHMACRO_CODE)
2048 ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER;
2051 case LYX_ALIGN_BLOCK:
2052 ns = numberOfSeparators(bview->buffer(), row);
2053 if (ns && row->next() && row->next()->par() == row->par() &&
2054 !(row->next()->par()->isNewline(row->next()->pos() - 1))
2055 && !(row->next()->par()->getChar(row->next()->pos()) == Paragraph::META_INSET
2056 && row->next()->par()->getInset(row->next()->pos())
2057 && row->next()->par()->getInset(row->next()->pos())->display())
2059 fill_separator = w / ns;
2063 case LYX_ALIGN_RIGHT:
2066 case LYX_ALIGN_CENTER:
2074 computeBidiTables(bview->buffer(), row);
2076 Paragraph::size_type main_body =
2077 beginningOfMainBody(bview->buffer(), row->par());
2078 Paragraph::size_type last = rowLast(row);
2080 if (main_body > 0 &&
2081 (main_body-1 > last ||
2082 !row->par()->isLineSeparator(main_body-1))) {
2083 LyXLayout const & layout =
2084 textclasslist.Style(bview->buffer()->params.textclass,
2085 row->par()->getLayout());
2086 x += lyxfont::width(layout.labelsep,
2087 getFont(bview->buffer(), row->par(), -2));
2088 if (main_body-1 <= last)
2089 x += fill_label_hfill;
2094 /* important for the screen */
2097 /* the cursor set functions have a special mechanism. When they
2098 * realize, that you left an empty paragraph, they will delete it.
2099 * They also delete the corresponding row */
2101 void LyXText::cursorRightOneWord(BufferView * bview) const
2103 // treat floats, HFills and Insets as words
2104 LyXCursor tmpcursor = cursor;
2105 // CHECK See comment on top of text.C
2107 if (tmpcursor.pos() == tmpcursor.par()->size()
2108 && tmpcursor.par()->next()) {
2109 tmpcursor.par(tmpcursor.par()->next());
2114 // Skip through initial nonword stuff.
2115 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2116 ! tmpcursor.par()->isWord(tmpcursor.pos())) {
2117 // printf("Current pos1 %d", tmpcursor.pos()) ;
2118 tmpcursor.pos(tmpcursor.pos() + 1);
2121 // Advance through word.
2122 while (tmpcursor.pos() < tmpcursor.par()->size() &&
2123 tmpcursor.par()->isWord( tmpcursor.pos())) {
2124 // printf("Current pos2 %d", tmpcursor.pos()) ;
2125 tmpcursor.pos(tmpcursor.pos() + 1);
2129 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2133 void LyXText::cursorTab(BufferView * bview) const
2135 LyXCursor tmpcursor = cursor;
2136 while (tmpcursor.pos() < tmpcursor.par()->size()
2137 && !tmpcursor.par()->isNewline(tmpcursor.pos()))
2138 tmpcursor.pos(tmpcursor.pos() + 1);
2140 if (tmpcursor.pos() == tmpcursor.par()->size()){
2141 if (tmpcursor.par()->next()) {
2142 tmpcursor.par(tmpcursor.par()->next());
2146 tmpcursor.pos(tmpcursor.pos() + 1);
2147 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2151 /* -------> Skip initial whitespace at end of word and move cursor to *start*
2152 of prior word, not to end of next prior word. */
2154 void LyXText::cursorLeftOneWord(BufferView * bview) const
2156 LyXCursor tmpcursor = cursor;
2157 cursorLeftOneWord(tmpcursor);
2158 setCursor(bview, tmpcursor.par(), tmpcursor.pos());
2161 void LyXText::cursorLeftOneWord(LyXCursor & cur) const
2163 // treat HFills, floats and Insets as words
2166 && (cur.par()->isSeparator(cur.pos() - 1)
2167 || cur.par()->isKomma(cur.pos() - 1))
2168 && !(cur.par()->isHfill(cur.pos() - 1)
2169 || cur.par()->isInset(cur.pos() - 1)))
2170 cur.pos(cur.pos() - 1);
2173 && (cur.par()->isInset(cur.pos() - 1)
2174 || cur.par()->isHfill(cur.pos() - 1))) {
2175 cur.pos(cur.pos() - 1);
2176 } else if (!cur.pos()) {
2177 if (cur.par()->previous()){
2178 cur.par(cur.par()->previous());
2179 cur.pos(cur.par()->size());
2181 } else { // Here, cur != 0
2182 while (cur.pos() > 0 &&
2183 cur.par()->isWord(cur.pos()-1) )
2184 cur.pos(cur.pos() - 1);
2188 /* -------> Select current word. This depends on behaviour of
2189 CursorLeftOneWord(), so it is patched as well. */
2190 void LyXText::getWord(LyXCursor & from, LyXCursor & to,
2191 word_location const loc) const
2193 // first put the cursor where we wana start to select the word
2196 case WHOLE_WORD_STRICT:
2197 if (cursor.pos() == 0 || cursor.pos() == cursor.par()->size()
2198 || cursor.par()->isSeparator(cursor.pos())
2199 || cursor.par()->isKomma(cursor.pos())
2200 || cursor.par()->isSeparator(cursor.pos() -1)
2201 || cursor.par()->isKomma(cursor.pos() -1)) {
2205 // no break here, we go to the next
2208 // Move cursor to the beginning, when not already there.
2209 if (from.pos() && !from.par()->isSeparator(from.pos() - 1)
2210 && !from.par()->isKomma(from.pos() - 1))
2211 cursorLeftOneWord(from);
2214 // always move the cursor to the beginning of previous word
2215 cursorLeftOneWord(from);
2218 lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet\n";
2224 while (to.pos() < to.par()->size()
2225 && !to.par()->isSeparator(to.pos())
2226 && !to.par()->isKomma(to.pos())
2227 && !to.par()->isHfill(to.pos()) )
2229 to.pos(to.pos() + 1);
2234 void LyXText::selectWord(BufferView * bview, word_location const loc)
2238 getWord(from, to, loc);
2240 setCursor(bview, from.par(), from.pos());
2243 selection.cursor = cursor;
2244 setCursor(bview, to.par(), to.pos() );
2245 setSelection(bview);
2249 /* -------> Select the word currently under the cursor when no
2250 selection is currently set */
2251 bool LyXText::selectWordWhenUnderCursor(BufferView * bview,
2252 word_location const loc)
2254 if (!selection.set()) {
2255 selectWord(bview, loc);
2256 return selection.set();
2262 // This function is only used by the spellchecker for NextWord().
2263 // It doesn't handle LYX_ACCENTs and probably never will.
2264 string const LyXText::selectNextWord(BufferView * bview,
2265 float & value) const
2267 if (the_locking_inset) {
2268 string str = the_locking_inset->selectNextWord(bview, value);
2270 value += float(cursor.y())/float(height);
2273 #warning Dekel please have a look on this one RTL? (Jug)
2274 // we have to go on checking so move cusor to the right
2275 if (cursor.pos() == cursor.par()->size()) {
2276 if (!cursor.par()->next())
2278 cursor.par(cursor.par()->next());
2281 cursor.pos(cursor.pos() + 1);
2283 Paragraph * tmppar = cursor.par();
2285 // If this is not the very first word, skip rest of
2286 // current word because we are probably in the middle
2287 // of a word if there is text here.
2288 if (cursor.pos() || cursor.par()->previous()) {
2289 while (cursor.pos() < cursor.par()->size()
2290 && cursor.par()->isLetter(cursor.pos()))
2291 cursor.pos(cursor.pos() + 1);
2294 // Now, skip until we have real text (will jump paragraphs)
2295 while ((cursor.par()->size() > cursor.pos()
2296 && (!cursor.par()->isLetter(cursor.pos())
2298 || cursor.par()->getFont(bview->buffer()->params, cursor.pos())
2299 .latex() == LyXFont::ON
2302 && (!cursor.par()->isInset(cursor.pos()) ||
2303 !cursor.par()->getInset(cursor.pos())->isTextInset()))
2304 || (cursor.par()->size() == cursor.pos()
2305 && cursor.par()->next()))
2307 if (cursor.pos() == cursor.par()->size()) {
2308 cursor.par(cursor.par()->next());
2311 cursor.pos(cursor.pos() + 1);
2314 // now check if we hit an inset so it has to be a inset containing text!
2315 if (cursor.pos() < cursor.par()->size() &&
2316 cursor.par()->isInset(cursor.pos()))
2319 cursor.par()->getInset(cursor.pos())->edit(bview);
2320 // now call us again to do the above trick
2321 // but obviously we have to start from down below ;)
2322 return bview->text->selectNextWord(bview, value);
2325 // Update the value if we changed paragraphs
2326 if (cursor.par() != tmppar){
2327 setCursor(bview, cursor.par(), cursor.pos());
2328 value = float(cursor.y())/float(height);
2331 // Start the selection from here
2332 selection.cursor = cursor;
2336 // and find the end of the word
2337 // (optional hyphens are part of a word)
2338 while (cursor.pos() < cursor.par()->size()
2339 && (cursor.par()->isLetter(cursor.pos()))
2340 // assignment is intentional here
2341 || ((inset = getInset())
2342 && inset->lyxCode() == Inset::SPECIALCHAR_CODE
2343 && static_cast<InsetSpecialChar *>(inset)->kind()
2344 == InsetSpecialChar::HYPHENATION
2346 cursor.pos(cursor.pos() + 1);
2348 // Finally, we copy the word to a string and return it
2350 if (selection.cursor.pos() < cursor.pos()) {
2351 Paragraph::size_type i;
2352 for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
2353 if (cursor.par()->getChar(i) != Paragraph::META_INSET)
2354 str += cursor.par()->getChar(i);
2361 // This one is also only for the spellchecker
2362 void LyXText::selectSelectedWord(BufferView * bview)
2364 if (the_locking_inset) {
2365 the_locking_inset->selectSelectedWord(bview);
2368 // move cursor to the beginning
2369 setCursor(bview, selection.cursor.par(), selection.cursor.pos());
2371 // set the sel cursor
2372 selection.cursor = cursor;
2375 // now find the end of the word
2376 while (cursor.pos() < cursor.par()->size()
2377 && (cursor.par()->isLetter(cursor.pos())
2378 // assignment is intentional here
2379 || ((inset = getInset())
2380 && inset->lyxCode() == Inset::SPECIALCHAR_CODE
2381 && static_cast<InsetSpecialChar *>(inset)->kind()
2382 == InsetSpecialChar::HYPHENATION
2384 cursor.pos(cursor.pos() + 1);
2386 setCursor(bview, cursor.par(), cursor.pos());
2388 // finally set the selection
2389 setSelection(bview);
2393 /* -------> Delete from cursor up to the end of the current or next word. */
2394 void LyXText::deleteWordForward(BufferView * bview)
2396 if (!cursor.par()->size())
2399 LyXCursor tmpcursor = cursor;
2400 tmpcursor.row(0); //Â ??
2401 selection.set(true); // to avoid deletion
2402 cursorRightOneWord(bview);
2403 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2404 selection.cursor = cursor;
2406 setSelection(bview);
2408 /* -----> Great, CutSelection() gets rid of multiple spaces. */
2409 cutSelection(bview);
2414 /* -------> Delete from cursor to start of current or prior word. */
2415 void LyXText::deleteWordBackward(BufferView * bview)
2417 if (!cursor.par()->size())
2420 LyXCursor tmpcursor = cursor;
2421 tmpcursor.row(0); // ??
2422 selection.set(true); // to avoid deletion
2423 cursorLeftOneWord(bview);
2424 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2425 selection.cursor = cursor;
2427 setSelection(bview);
2428 cutSelection(bview);
2433 /* -------> Kill to end of line. */
2434 void LyXText::deleteLineForward(BufferView * bview)
2436 if (!cursor.par()->size())
2437 // Paragraph is empty, so we just go to the right
2440 LyXCursor tmpcursor = cursor;
2441 // We can't store the row over a regular setCursor
2442 // so we set it to 0 and reset it afterwards.
2443 tmpcursor.row(0); //Â ??
2444 selection.set(true); // to avoid deletion
2446 setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
2447 selection.cursor = cursor;
2449 setSelection(bview);
2450 // What is this test for ??? (JMarc)
2451 if (!selection.set()) {
2452 deleteWordForward(bview);
2454 cutSelection(bview);
2460 // Change the case of a word at cursor position.
2461 // This function directly manipulates Paragraph::text because there
2462 // is no Paragraph::SetChar currently. I did what I could to ensure
2463 // that it is correct. I guess part of it should be moved to
2464 // Paragraph, but it will have to change for 1.1 anyway. At least
2465 // it does not access outside of the allocated array as the older
2466 // version did. (JMarc)
2467 void LyXText::changeCase(BufferView * bview, LyXText::TextCase action)
2472 if (selection.set()) {
2473 from = selection.start;
2476 getWord(from, to, PARTIAL_WORD);
2477 setCursor(bview, to.par(), to.pos() + 1);
2480 changeRegionCase(bview, from, to, action);
2484 void LyXText::changeRegionCase(BufferView * bview,
2485 LyXCursor const & from,
2486 LyXCursor const & to,
2487 LyXText::TextCase action)
2489 lyx::Assert(from <= to);
2491 setUndo(bview, Undo::FINISH,
2492 from.par(), to.par()->next());
2494 Paragraph::size_type pos = from.pos();
2495 Paragraph * par = from.par();
2497 while (par && (pos != to.pos() || par != to.par())) {
2498 unsigned char c = par->getChar(pos);
2499 if (!IsInsetChar(c) && !IsHfillChar(c)) {
2501 case text_lowercase:
2504 case text_capitalization:
2506 action = text_lowercase;
2508 case text_uppercase:
2513 par->setChar(pos, c);
2514 checkParagraph(bview, par, pos);
2517 if (pos == par->size()) {
2522 if (to.row() != from.row()) {
2523 refresh_y = from.y() - from.row()->baseline();
2524 refresh_row = from.row();
2525 status(bview, LyXText::NEED_MORE_REFRESH);
2530 void LyXText::transposeChars(BufferView & bview)
2532 Paragraph * tmppar = cursor.par();
2534 setUndo(&bview, Undo::FINISH,
2535 tmppar, tmppar->next());
2537 Paragraph::size_type tmppos = cursor.pos();
2539 // First decide if it is possible to transpose at all
2541 // We are at the beginning of a paragraph.
2542 if (tmppos == 0) return;
2544 // We are at the end of a paragraph.
2545 if (tmppos == tmppar->size() - 1) return;
2547 unsigned char c1 = tmppar->getChar(tmppos);
2548 unsigned char c2 = tmppar->getChar(tmppos - 1);
2550 if (c1 != Paragraph::META_INSET
2551 && c2 != Paragraph::META_INSET) {
2552 tmppar->setChar(tmppos, c2);
2553 tmppar->setChar(tmppos - 1, c1);
2555 // We should have an implementation that handles insets
2556 // as well, but that will have to come later. (Lgb)
2557 checkParagraph(const_cast<BufferView*>(&bview), tmppar, tmppos);
2561 void LyXText::Delete(BufferView * bview)
2563 // this is a very easy implementation
2565 LyXCursor old_cursor = cursor;
2566 int const old_cur_par_id = old_cursor.par()->id();
2567 int const old_cur_par_prev_id = old_cursor.par()->previous() ?
2568 old_cursor.par()->previous()->id() : 0;
2570 // just move to the right
2573 // CHECK Look at the comment here.
2574 // This check is not very good...
2575 // The cursorRightIntern calls DeleteEmptyParagrapgMechanism
2576 // and that can very well delete the par or par->previous in
2577 // old_cursor. Will a solution where we compare paragraph id's
2579 if ((cursor.par()->previous() ? cursor.par()->previous()->id() : 0)
2580 == old_cur_par_prev_id
2581 && cursor.par()->id() != old_cur_par_id)
2582 return; // delete-empty-paragraph-mechanism has done it
2584 // if you had success make a backspace
2585 if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
2586 LyXCursor tmpcursor = cursor;
2587 cursor = old_cursor; // to make sure undo gets the right cursor position
2588 setUndo(bview, Undo::DELETE,
2589 cursor.par(), cursor.par()->next());
2596 void LyXText::backspace(BufferView * bview)
2598 // Get the font that is used to calculate the baselineskip
2599 Paragraph::size_type lastpos = cursor.par()->size();
2600 LyXFont rawparfont =
2601 cursor.par()->getFontSettings(bview->buffer()->params,
2604 if (cursor.pos() == 0) {
2605 // The cursor is at the beginning of a paragraph,
2606 // so the the backspace will collapse two paragraphs into one.
2608 // we may paste some paragraphs
2610 // is it an empty paragraph?
2613 || (lastpos == 1 && cursor.par()->isSeparator(0)))) {
2614 // This is an empty paragraph and we delete it just by moving the cursor one step
2615 // left and let the DeleteEmptyParagraphMechanism handle the actual deletion
2616 // of the paragraph.
2618 if (cursor.par()->previous()) {
2619 Paragraph * tmppar = cursor.par()->previous();
2620 if (cursor.par()->getLayout() == tmppar->getLayout()
2621 && cursor.par()->getAlign() == tmppar->getAlign()) {
2622 // Inherit bottom DTD from the paragraph below.
2623 // (the one we are deleting)
2624 tmppar->params().lineBottom(cursor.par()->params().lineBottom());
2625 tmppar->params().spaceBottom(cursor.par()->params().spaceBottom());
2626 tmppar->params().pagebreakBottom(cursor.par()->params().pagebreakBottom());
2631 // the layout things can change the height of a row !
2632 int const tmpheight = cursor.row()->height();
2633 setHeightOfRow(bview, cursor.row());
2634 if (cursor.row()->height() != tmpheight) {
2635 refresh_y = cursor.y() - cursor.row()->baseline();
2636 refresh_row = cursor.row();
2637 status(bview, LyXText::NEED_MORE_REFRESH);
2643 if (cursor.par()->previous()) {
2644 setUndo(bview, Undo::DELETE,
2645 cursor.par()->previous(),
2646 cursor.par()->next());
2649 Paragraph * tmppar = cursor.par();
2650 Row * tmprow = cursor.row();
2652 // We used to do cursorLeftIntern() here, but it is
2653 // not a good idea since it triggers the auto-delete
2654 // mechanism. So we do a cursorLeftIntern()-lite,
2655 // without the dreaded mechanism. (JMarc)
2656 if (cursor.par()->previous()) {
2657 // steps into the above paragraph.
2658 setCursorIntern(bview, cursor.par()->previous(),
2659 cursor.par()->previous()->size(),
2663 /* Pasting is not allowed, if the paragraphs have different
2664 layout. I think it is a real bug of all other
2665 word processors to allow it. It confuses the user.
2666 Even so with a footnote paragraph and a non-footnote
2667 paragraph. I will not allow pasting in this case,
2668 because the user would be confused if the footnote behaves
2669 different wether it is open or closed.
2671 Correction: Pasting is always allowed with standard-layout
2673 if (cursor.par() != tmppar
2674 && (cursor.par()->getLayout() == tmppar->getLayout()
2675 || tmppar->getLayout() == 0 /*standard*/)
2676 && cursor.par()->getAlign() == tmppar->getAlign()) {
2678 removeParagraph(tmprow);
2680 cursor.par()->pasteParagraph(bview->buffer()->params);
2682 if (!cursor.pos() || !cursor.par()->isSeparator(cursor.pos() - 1))
2683 ; //cursor.par()->insertChar(cursor.pos(), ' ');
2684 // strangely enough it seems that commenting out the line above removes
2685 // most or all of the segfaults. I will however also try to move the
2686 // two Remove... lines in front of the PasteParagraph too.
2689 cursor.pos(cursor.pos() - 1);
2691 status(bview, LyXText::NEED_MORE_REFRESH);
2692 refresh_row = cursor.row();
2693 refresh_y = cursor.y() - cursor.row()->baseline();
2695 // remove the lost paragraph
2696 // This one is not safe, since the paragraph that the tmprow and the
2697 // following rows belong to has been deleted by the PasteParagraph
2698 // above. The question is... could this be moved in front of the
2700 //RemoveParagraph(tmprow);
2701 //RemoveRow(tmprow);
2703 // This rebuilds the rows.
2704 appendParagraph(bview, cursor.row());
2705 updateCounters(bview, cursor.row());
2707 // the row may have changed, block, hfills etc.
2708 setCursor(bview, cursor.par(), cursor.pos(), false);
2711 /* this is the code for a normal backspace, not pasting
2713 setUndo(bview, Undo::DELETE,
2714 cursor.par(), cursor.par()->next());
2715 // We used to do cursorLeftIntern() here, but it is
2716 // not a good idea since it triggers the auto-delete
2717 // mechanism. So we do a cursorLeftIntern()-lite,
2718 // without the dreaded mechanism. (JMarc)
2719 setCursorIntern(bview, cursor.par(), cursor.pos()- 1,
2720 false, cursor.boundary());
2722 // some insets are undeletable here
2723 if (cursor.par()->getChar(cursor.pos()) == Paragraph::META_INSET) {
2724 if (!cursor.par()->getInset(cursor.pos())->deletable())
2726 // force complete redo when erasing display insets
2727 // this is a cruel method but safe..... Matthias
2728 if (cursor.par()->getInset(cursor.pos())->display() ||
2729 cursor.par()->getInset(cursor.pos())->needFullRow()) {
2730 cursor.par()->erase(cursor.pos());
2731 redoParagraph(bview);
2736 Row * row = cursor.row();
2737 int y = cursor.y() - row->baseline();
2738 Paragraph::size_type z;
2739 /* remember that a space at the end of a row doesnt count
2740 * when calculating the fill */
2741 if (cursor.pos() < rowLast(row) ||
2742 !cursor.par()->isLineSeparator(cursor.pos())) {
2743 row->fill(row->fill() + singleWidth(bview,
2748 /* some special code when deleting a newline. This is similar
2749 * to the behavior when pasting paragraphs */
2750 if (cursor.pos() && cursor.par()->isNewline(cursor.pos())) {
2751 cursor.par()->erase(cursor.pos());
2752 // refresh the positions
2754 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2755 tmprow = tmprow->next();
2756 tmprow->pos(tmprow->pos() - 1);
2758 if (cursor.par()->isLineSeparator(cursor.pos() - 1))
2759 cursor.pos(cursor.pos() - 1);
2761 if (cursor.pos() < cursor.par()->size()
2762 && !cursor.par()->isSeparator(cursor.pos())) {
2763 cursor.par()->insertChar(cursor.pos(), ' ');
2764 setCharFont(bview->buffer(), cursor.par(),
2765 cursor.pos(), current_font);
2766 // refresh the positions
2768 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2769 tmprow = tmprow->next();
2770 tmprow->pos(tmprow->pos() + 1);
2774 cursor.par()->erase(cursor.pos());
2776 // refresh the positions
2778 while (tmprow->next()
2779 && tmprow->next()->par() == row->par()) {
2780 tmprow = tmprow->next();
2781 tmprow->pos(tmprow->pos() - 1);
2784 // delete newlines at the beginning of paragraphs
2785 while (cursor.par()->size() &&
2786 cursor.par()->isNewline(cursor.pos()) &&
2787 cursor.pos() == beginningOfMainBody(bview->buffer(),
2789 cursor.par()->erase(cursor.pos());
2790 // refresh the positions
2792 while (tmprow->next() &&
2793 tmprow->next()->par() == row->par()) {
2794 tmprow = tmprow->next();
2795 tmprow->pos(tmprow->pos() - 1);
2800 // is there a break one row above
2801 if (row->previous() && row->previous()->par() == row->par()) {
2802 z = nextBreakPoint(bview, row->previous(),
2804 if (z >= row->pos()) {
2807 Row * tmprow = row->previous();
2809 // maybe the current row is now empty
2810 if (row->pos() >= row->par()->size()) {
2815 breakAgainOneRow(bview, row);
2816 if (row->next() && row->next()->par() == row->par())
2817 need_break_row = row->next();
2822 // set the dimensions of the row above
2823 y -= tmprow->height();
2824 tmprow->fill(fill(bview, tmprow,
2826 setHeightOfRow(bview, tmprow);
2829 refresh_row = tmprow;
2830 status(bview, LyXText::NEED_MORE_REFRESH);
2831 setCursor(bview, cursor.par(), cursor.pos(),
2832 false, cursor.boundary());
2833 //current_font = rawtmpfont;
2834 //real_current_font = realtmpfont;
2835 // check, whether the last character's font has changed.
2837 cursor.par()->getFontSettings(bview->buffer()->params,
2838 cursor.par()->size() - 1))
2839 redoHeightOfParagraph(bview, cursor);
2844 // break the cursor row again
2845 if (row->next() && row->next()->par() == row->par() &&
2846 (rowLast(row) == row->par()->size() - 1 ||
2847 nextBreakPoint(bview, row, workWidth(bview)) != rowLast(row))) {
2849 /* it can happen that a paragraph loses one row
2850 * without a real breakup. This is when a word
2851 * is to long to be broken. Well, I don t care this
2853 if (rowLast(row) == row->par()->size() - 1)
2854 removeRow(row->next());
2858 status(bview, LyXText::NEED_MORE_REFRESH);
2860 breakAgainOneRow(bview, row);
2861 // will the cursor be in another row now?
2862 if (row->next() && row->next()->par() == row->par() &&
2863 rowLast(row) <= cursor.pos()) {
2865 breakAgainOneRow(bview, row);
2868 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
2870 if (row->next() && row->next()->par() == row->par())
2871 need_break_row = row->next();
2875 // set the dimensions of the row
2876 row->fill(fill(bview, row, workWidth(bview)));
2877 int const tmpheight = row->height();
2878 setHeightOfRow(bview, row);
2879 if (tmpheight == row->height())
2880 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
2882 status(bview, LyXText::NEED_MORE_REFRESH);
2885 setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
2889 // current_font = rawtmpfont;
2890 // real_current_font = realtmpfont;
2892 if (isBoundary(bview->buffer(), cursor.par(), cursor.pos())
2893 != cursor.boundary())
2894 setCursor(bview, cursor.par(), cursor.pos(), false,
2895 !cursor.boundary());
2897 lastpos = cursor.par()->size();
2898 if (cursor.pos() == lastpos)
2899 setCurrentFont(bview);
2901 // check, whether the last characters font has changed.
2903 cursor.par()->getFontSettings(bview->buffer()->params, lastpos - 1)) {
2904 redoHeightOfParagraph(bview, cursor);
2906 // now the special right address boxes
2907 if (textclasslist.Style(bview->buffer()->params.textclass,
2908 cursor.par()->getLayout()).margintype == MARGIN_RIGHT_ADDRESS_BOX) {
2909 redoDrawingOfParagraph(bview, cursor);
2915 void LyXText::getVisibleRow(BufferView * bview, int y_offset, int x_offset,
2916 Row * row_ptr, int y, bool cleared)
2918 // returns a printed row
2919 Painter & pain = bview->painter();
2922 row_ptr->par()->isRightToLeftPar(bview->buffer()->params);
2924 Paragraph::size_type const last = rowLastPrintable(row_ptr);
2926 Paragraph::size_type vpos;
2927 Paragraph::size_type pos;
2931 LyXFont font(LyXFont::ALL_SANE);
2933 if (row_ptr->height() <= 0) {
2934 lyxerr << "LYX_ERROR: row.height: "
2935 << row_ptr->height() << endl;
2940 float fill_separator;
2942 float fill_label_hfill;
2943 prepareToPrint(bview, row_ptr, x, fill_separator,
2944 fill_hfill, fill_label_hfill);
2946 if (inset_owner && (x < 0))
2950 // clear the area where we want to paint/print
2951 int const ww = bview->workWidth();
2953 bool clear_area = true;
2956 if (!bview->screen()->forceClear() && last == row_ptr->pos()
2957 && row_ptr->par()->getChar(row_ptr->pos()) == Paragraph::META_INSET
2958 && (inset = row_ptr->par()->getInset(row_ptr->pos()))) {
2959 clear_area = inset->doClearArea();
2961 // we don't need to clear it's already done!!!
2964 } else if (clear_area) {
2965 #ifdef WITH_WARNINGS
2966 #warning Should be fixed with a lyxinset::clear_width(bv, font) function! (Jug)
2967 #warning Should we not fix this in the Painter, please have a look Lars! (Jug)
2969 int const y = y_offset < 0 ? 0 : y_offset;
2970 int const h = y_offset < 0 ?
2971 row_ptr->height() + y_offset : row_ptr->height();
2972 int const w = inset_owner ?
2973 inset_owner->width(bview, font) - 2 : ww;
2974 int const x = x_offset;
2975 pain.fillRectangle(x, y, w, h, backgroundColor());
2976 } else if (inset != 0) {
2977 int h = row_ptr->baseline() - inset->ascent(bview, font);
2978 // first clear the whole row above the inset!
2981 int const w = (inset_owner ?
2982 inset_owner->width(bview, font) : ww);
2984 pain.fillRectangle(x_offset, y_offset, ww, h,
2987 h += inset->ascent(bview, font) + inset->descent(bview, font);
2988 // clear the space below the inset!
2989 if ((row_ptr->height() - h) > 0) {
2991 int const w = (inset_owner ?
2992 inset_owner->width(bview, font) : ww);
2994 pain.fillRectangle(x_offset, y_offset + h,
2995 ww, row_ptr->height() - h,
2998 // clear the space behind the inset, if needed
2999 if (!inset_owner && !inset->display() && !inset->needFullRow())
3001 int const w = inset->width(bview, font) + int(x);
3002 pain.fillRectangle(w, y_offset,
3003 ww - w, row_ptr->height(),
3008 if (selection.set()) {
3009 int const w = (inset_owner ?
3010 inset_owner->width(bview, font) : ww);
3012 if (bidi_same_direction) {
3013 if (selection.start.row() == row_ptr &&
3014 selection.end.row() == row_ptr) {
3015 if (selection.start.x() < selection.end.x())
3016 pain.fillRectangle(x_offset + selection.start.x(),
3018 selection.end.x() - selection.start.x(),
3022 pain.fillRectangle(x_offset + selection.end.x(),
3024 selection.start.x() - selection.end.x(),
3027 } else if (selection.start.row() == row_ptr) {
3029 pain.fillRectangle(x_offset, y_offset,
3030 selection.start.x(),
3034 pain.fillRectangle(x_offset + selection.start.x(),
3036 w - selection.start.x(),
3039 } else if (selection.end.row() == row_ptr) {
3041 pain.fillRectangle(x_offset + selection.end.x(),
3043 w - selection.end.x(),
3047 pain.fillRectangle(x_offset, y_offset,
3051 } else if (y > selection.start.y()
3052 && y < selection.end.y()) {
3053 pain.fillRectangle(x_offset, y_offset, w,
3057 } else if (selection.start.row() != row_ptr &&
3058 selection.end.row() != row_ptr &&
3059 y > selection.start.y()
3060 && y < selection.end.y()) {
3061 pain.fillRectangle(x_offset, y_offset, w,
3064 } else if (selection.start.row() == row_ptr ||
3065 selection.end.row() == row_ptr) {
3067 if ((selection.start.row() != row_ptr && !is_rtl) ||
3068 (selection.end.row() != row_ptr && is_rtl))
3069 pain.fillRectangle(x_offset, y_offset,
3073 Paragraph::size_type main_body =
3074 beginningOfMainBody(bview->buffer(),
3077 for (vpos = row_ptr->pos(); vpos <= last; ++vpos) {
3078 pos = vis2log(vpos);
3079 float const old_tmpx = tmpx;
3080 if (main_body > 0 && pos == main_body-1) {
3081 tmpx += fill_label_hfill +
3082 lyxfont::width(textclasslist.Style(bview->buffer()->params.textclass,
3083 row_ptr->par()->getLayout()).labelsep,
3084 getFont(bview->buffer(),row_ptr->par(), -2));
3085 if (row_ptr->par()->isLineSeparator(main_body-1))
3086 tmpx -= singleWidth(bview, row_ptr->par(), main_body-1);
3088 if (hfillExpansion(bview->buffer(), row_ptr, pos)) {
3089 tmpx += singleWidth(bview, row_ptr->par(), pos);
3090 if (pos >= main_body)
3093 tmpx += fill_label_hfill;
3095 else if (row_ptr->par()->isSeparator(pos)) {
3096 tmpx += singleWidth(bview, row_ptr->par(), pos);
3097 if (pos >= main_body)
3098 tmpx += fill_separator;
3100 tmpx += singleWidth(bview, row_ptr->par(), pos);
3102 if ((selection.start.row() != row_ptr ||
3103 selection.start.pos() <= pos) &&
3104 (selection.end.row() != row_ptr ||
3105 pos < selection.end.pos()) )
3106 // Here we do not use x_offset as x_offset was
3108 pain.fillRectangle(int(old_tmpx),
3110 int(tmpx - old_tmpx + 1),
3115 if ((selection.start.row() != row_ptr && is_rtl) ||
3116 (selection.end.row() != row_ptr && !is_rtl) )
3117 pain.fillRectangle(x_offset + int(tmpx),
3127 // Draw appendix lines
3128 Paragraph * firstpar = row_ptr->par();
3130 if (firstpar->params().appendix()) {
3131 pain.line(1, y_offset,
3132 1, y_offset + row_ptr->height(),
3133 LColor::appendixline);
3134 pain.line(ww - 2, y_offset,
3135 ww - 2, y_offset + row_ptr->height(),
3136 LColor::appendixline);
3140 Paragraph::depth_type const depth = firstpar->getDepth();
3142 Paragraph::depth_type next_depth = 0;
3143 Paragraph::depth_type prev_depth = 0;
3144 if (row_ptr->next())
3145 next_depth = row_ptr->next()->par()->getDepth();
3146 if (row_ptr->previous())
3147 prev_depth = row_ptr->previous()->par()->getDepth();
3149 for (Paragraph::depth_type i = 1; i <= depth; ++i) {
3150 int const line_x = (LYX_PAPER_MARGIN / 5) *
3151 i + box_x + x_offset;
3152 pain.line(line_x, y_offset, line_x,
3153 y_offset + row_ptr->height() - 1 - (i - next_depth - 1) * 3,
3157 pain.fillRectangle(line_x, y_offset, LYX_PAPER_MARGIN / 5, 2,
3160 pain.fillRectangle(line_x,
3161 y_offset + row_ptr->height() - 2 - (i - next_depth - 1) * 3,
3162 LYX_PAPER_MARGIN / 5, 2,
3168 LyXLayout const & layout =
3169 textclasslist.Style(bview->buffer()->params.textclass,
3170 row_ptr->par()->getLayout());
3173 int y_bottom = row_ptr->height();
3175 // is it a first row?
3176 if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
3178 // start of appendix?
3179 if (row_ptr->par()->params().startOfAppendix()) {
3180 pain.line(1, y_offset,
3182 LColor::appendixline);
3185 // think about the margins
3186 if (!row_ptr->previous() && bv_owner)
3187 y_top += LYX_PAPER_MARGIN;
3189 // draw a top pagebreak
3190 if (row_ptr->par()->params().pagebreakTop()) {
3192 pb_font.setColor(LColor::pagebreak).decSize();
3196 pain.line(0, y_offset + y_top + 2*defaultHeight(),
3198 y_offset + y_top + 2 * defaultHeight(),
3200 Painter::line_onoffdash);
3201 lyxfont::rectText(_("Page Break (top)"), pb_font,
3203 pain.rectText((ww - w)/2,
3204 y_offset + y_top + 2 * defaultHeight() + d,
3205 _("Page Break (top)"),
3209 y_top += 3 * defaultHeight();
3212 if (row_ptr->par()->params().spaceTop().kind() == VSpace::VFILL) {
3214 pain.line(0, y_offset + 2 + y_top,
3215 LYX_PAPER_MARGIN, y_offset + 2 + y_top,
3218 pain.line(0, y_offset + y_top + 3 * defaultHeight(),
3220 y_offset + y_top + 3 * defaultHeight(),
3223 pain.line(LYX_PAPER_MARGIN / 2, y_offset + 2 + y_top,
3224 LYX_PAPER_MARGIN / 2,
3225 y_offset + y_top + 3 * defaultHeight(),
3228 y_top += 3 * defaultHeight();
3231 // think about user added space
3232 y_top += int(row_ptr->par()->params().spaceTop().inPixels(bview));
3234 // think about the parskip
3235 // some parskips VERY EASY IMPLEMENTATION
3236 if (bview->buffer()->params.paragraph_separation == BufferParams::PARSEP_SKIP) {
3237 if (layout.latextype == LATEX_PARAGRAPH
3238 && firstpar->getDepth() == 0
3239 && firstpar->previous())
3240 y_top += bview->buffer()->params.getDefSkip().inPixels(bview);
3241 else if (firstpar->previous()
3242 && textclasslist.Style(bview->buffer()->params.textclass,
3243 firstpar->previous()->getLayout()).latextype == LATEX_PARAGRAPH
3244 && firstpar->previous()->getDepth() == 0)
3245 // is it right to use defskip here, too? (AS)
3246 y_top += bview->buffer()->params.getDefSkip().inPixels(bview);
3249 if (row_ptr->par()->params().lineTop()) {
3251 y_top += lyxfont::ascent('x',
3252 getFont(bview->buffer(),
3253 row_ptr->par(), 0));
3254 int const w = (inset_owner ?
3255 inset_owner->width(bview, font) : ww);
3256 int const xp = static_cast<int>(inset_owner ? x : 0);
3257 pain.line(xp, y_offset + y_top,
3258 w, y_offset + y_top,
3260 Painter::line_solid,
3261 Painter::line_thick);
3263 y_top += lyxfont::ascent('x',getFont(bview->buffer(),
3264 row_ptr->par(), 0));
3267 // should we print a label?
3268 if (layout.labeltype >= LABEL_STATIC
3269 && (layout.labeltype != LABEL_STATIC
3270 || layout.latextype != LATEX_ENVIRONMENT
3271 || row_ptr->par()->isFirstInSequence())) {
3272 font = getFont(bview->buffer(), row_ptr->par(), -2);
3273 if (!row_ptr->par()->getLabelstring().empty()) {
3275 string const tmpstring =
3276 row_ptr->par()->getLabelstring();
3278 if (layout.labeltype == LABEL_COUNTER_CHAPTER) {
3279 if (bview->buffer()->params.secnumdepth >= 0) {
3280 // this is special code for
3281 // the chapter layout. This is
3282 // printed in an extra row
3283 // and has a pagebreak at
3285 float spacing_val = 1.0;
3286 if (!row_ptr->par()->params().spacing().isDefault()) {
3287 spacing_val = row_ptr->par()->params().spacing().getValue();
3289 spacing_val = bview->buffer()->params.spacing.getValue();
3292 maxdesc = int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val)
3293 + int(layout.parsep) * defaultHeight();
3295 tmpx = ww - leftMargin(bview, row_ptr) -
3296 lyxfont::width(tmpstring, font);
3297 pain.text(int(tmpx),
3298 y_offset + row_ptr->baseline() - row_ptr->ascent_of_text() - maxdesc,
3303 tmpx = ww - leftMargin(bview, row_ptr)
3304 + lyxfont::width(layout.labelsep, font);
3306 tmpx = x - lyxfont::width(layout.labelsep, font)
3307 - lyxfont::width(tmpstring, font);
3310 pain.text(int(tmpx),
3311 y_offset + row_ptr->baseline(),
3315 // the labels at the top of an environment.
3316 // More or less for bibliography
3317 } else if (layout.labeltype == LABEL_TOP_ENVIRONMENT ||
3318 layout.labeltype == LABEL_BIBLIO ||
3319 layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
3320 if (row_ptr->par()->isFirstInSequence()) {
3321 font = getFont(bview->buffer(),
3322 row_ptr->par(), -2);
3323 if (!row_ptr->par()->getLabelstring().empty()) {
3324 string const tmpstring =
3325 row_ptr->par()->getLabelstring();
3326 float spacing_val = 1.0;
3327 if (!row_ptr->par()->params().spacing().isDefault()) {
3328 spacing_val = row_ptr->par()->params().spacing().getValue();
3330 spacing_val = bview->buffer()->params.spacing.getValue();
3333 maxdesc = int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val
3334 + (layout.labelbottomsep * defaultHeight()));
3337 if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT){
3338 tmpx = ( (is_rtl ? leftMargin(bview, row_ptr) : x)
3339 + ww - rightMargin(bview->buffer(), row_ptr) ) / 2;
3340 tmpx -= lyxfont::width(tmpstring, font) / 2;
3342 tmpx = ww - leftMargin(bview, row_ptr) -
3343 lyxfont::width(tmpstring, font);
3344 pain.text(int(tmpx),
3345 y_offset + row_ptr->baseline()
3346 - row_ptr->ascent_of_text()
3352 if (layout.labeltype == LABEL_BIBLIO && row_ptr->par()->bibkey) {
3353 font = getFont(bview->buffer(), row_ptr->par(), -1);
3355 tmpx = ww - leftMargin(bview, row_ptr)
3356 + lyxfont::width(layout.labelsep, font);
3358 tmpx = x - lyxfont::width(layout.labelsep, font)
3359 - row_ptr->par()->bibkey->width(bview, font);
3360 row_ptr->par()->bibkey->draw(bview, font,
3361 y_offset + row_ptr->baseline(),
3366 // is it a last row?
3367 Paragraph * par = row_ptr->par();
3368 if (row_ptr->par() == par
3369 && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par())) {
3370 // think about the margins
3371 if (!row_ptr->next() && bv_owner)
3372 y_bottom -= LYX_PAPER_MARGIN;
3374 // draw a bottom pagebreak
3375 if (firstpar->params().pagebreakBottom()) {
3377 pb_font.setColor(LColor::pagebreak).decSize();
3378 int const y_place = y_offset + y_bottom
3379 - 2 * defaultHeight();
3385 .line(0, y_place, ww, y_place,
3387 Painter::line_onoffdash);
3388 lyxfont::rectText(_("Page Break (bottom)"), pb_font,
3390 pain.rectText((ww - w) / 2, y_place + d,
3391 _("Page Break (bottom)"),
3395 y_bottom -= 3 * defaultHeight();
3398 if (firstpar->params().spaceBottom().kind() == VSpace::VFILL) {
3399 // draw a vfill bottom
3400 int const y_place = y_offset + y_bottom
3401 - 3 * defaultHeight();
3403 pain.line(0, y_place,
3404 LYX_PAPER_MARGIN, y_place,
3406 pain.line(0, y_offset + y_bottom - 2,
3408 y_offset + y_bottom - 2,
3410 pain.line(LYX_PAPER_MARGIN / 2,
3412 LYX_PAPER_MARGIN / 2,
3413 y_offset + y_bottom - 2,
3415 y_bottom -= 3 * defaultHeight();
3418 // think about user added space
3419 y_bottom -= int(firstpar->params().spaceBottom().inPixels(bview));
3421 if (firstpar->params().lineBottom()) {
3422 // draw a bottom line
3423 y_bottom -= lyxfont::ascent('x',
3424 getFont(bview->buffer(),
3427 int const w = (inset_owner ?
3428 inset_owner->width(bview, font) : ww);
3429 int const xp = static_cast<int>(inset_owner ? x : 0);
3430 pain.line(xp, y_offset + y_bottom,
3431 w, y_offset + y_bottom,
3432 LColor::topline, Painter::line_solid,
3433 Painter::line_thick);
3434 y_bottom -= lyxfont::ascent('x',
3435 getFont(bview->buffer(),
3441 int const endlabel =
3442 row_ptr->par()->getEndLabel(bview->buffer()->params);
3445 case END_LABEL_FILLED_BOX:
3447 LyXFont const font = getFont(bview->buffer(),
3448 row_ptr->par(), last);
3449 int const size = int(0.75 * lyxfont::maxAscent(font));
3450 int const y = (y_offset + row_ptr->baseline()) - size;
3451 int x = is_rtl ? LYX_PAPER_MARGIN
3452 : ww - LYX_PAPER_MARGIN - size;
3454 if (row_ptr->fill() <= size)
3455 x += (size - row_ptr->fill() + 1) * (is_rtl ? -1 : 1);
3456 if (endlabel == END_LABEL_BOX) {
3457 pain.line(x, y, x, y + size,
3459 pain.line(x + size, y, x + size , y + size,
3461 pain.line(x, y, x + size, y,
3463 pain.line(x, y + size, x + size, y + size,
3466 pain.fillRectangle(x, y, size, size,
3470 case END_LABEL_STATIC:
3472 LyXTextClass::LayoutList::size_type layout = row_ptr->par()->getLayout();
3473 string const tmpstring = textclasslist.
3474 Style(bview->buffer()->params.textclass,
3475 layout).endlabelstring();
3476 font = getFont(bview->buffer(), row_ptr->par(), -2);
3477 int const tmpx = is_rtl ?
3478 int(x) - lyxfont::width(tmpstring, font)
3479 : ww - rightMargin(bview->buffer(), row_ptr) - row_ptr->fill();
3480 pain.text( tmpx, y_offset + row_ptr->baseline(), tmpstring, font);
3483 case END_LABEL_NO_LABEL:
3488 // draw the text in the pixmap
3490 vpos = row_ptr->pos();
3492 Paragraph::size_type main_body =
3493 beginningOfMainBody(bview->buffer(), row_ptr->par());
3494 if (main_body > 0 &&
3495 (main_body-1 > last ||
3496 !row_ptr->par()->isLineSeparator(main_body - 1)))
3499 while (vpos <= last) {
3500 pos = vis2log(vpos);
3501 if (main_body > 0 && pos == main_body - 1) {
3502 x += fill_label_hfill
3503 + lyxfont::width(layout.labelsep,
3504 getFont(bview->buffer(),
3505 row_ptr->par(), -2))
3506 - singleWidth(bview,
3511 if (row_ptr->par() ->isHfill(pos)) {
3514 y_offset + row_ptr->baseline() - defaultHeight() / 2,
3516 y_offset + row_ptr->baseline(),
3519 if (hfillExpansion(bview->buffer(),
3521 if (pos >= main_body) {
3523 y_offset + row_ptr->baseline() - defaultHeight() / 4,
3524 int(x + fill_hfill),
3525 y_offset + row_ptr->baseline() - defaultHeight() / 4,
3527 Painter::line_onoffdash);
3531 y_offset + row_ptr->baseline() - defaultHeight() / 4,
3532 int(x + fill_label_hfill),
3533 y_offset + row_ptr->baseline() - defaultHeight() / 4,
3535 Painter::line_onoffdash);
3537 x += fill_label_hfill;
3540 y_offset + row_ptr->baseline() - defaultHeight() / 2,
3542 y_offset + row_ptr->baseline(),
3547 } else if (row_ptr->par()->isSeparator(pos)) {
3548 x += singleWidth(bview,
3549 row_ptr->par(), pos);
3550 if (pos >= main_body)
3551 x += fill_separator;
3554 draw(bview, row_ptr, vpos, y_offset, x, clear_area);
3559 int LyXText::defaultHeight() const
3561 LyXFont font(LyXFont::ALL_SANE);
3562 return int(lyxfont::maxAscent(font) + lyxfont::maxDescent(font) * 1.5);
3566 /* returns the column near the specified x-coordinate of the row
3567 * x is set to the real beginning of this column */
3568 int LyXText::getColumnNearX(BufferView * bview, Row * row, int & x,
3569 bool & boundary) const
3572 float fill_separator;
3574 float fill_label_hfill;
3576 prepareToPrint(bview, row, tmpx, fill_separator,
3577 fill_hfill, fill_label_hfill);
3579 Paragraph::size_type vc = row->pos();
3580 Paragraph::size_type last = rowLastPrintable(row);
3581 Paragraph::size_type c = 0;
3582 LyXLayout const & layout =
3583 textclasslist.Style(bview->buffer()->params.textclass,
3584 row->par()->getLayout());
3585 bool left_side = false;
3587 Paragraph::size_type
3588 main_body = beginningOfMainBody(bview->buffer(), row->par());
3589 float last_tmpx = tmpx;
3591 if (main_body > 0 &&
3592 (main_body - 1 > last ||
3593 !row->par()->isLineSeparator(main_body - 1)))
3596 while (vc <= last && tmpx <= x) {
3599 if (main_body > 0 && c == main_body-1) {
3600 tmpx += fill_label_hfill +
3601 lyxfont::width(layout.labelsep,
3602 getFont(bview->buffer(), row->par(), -2));
3603 if (row->par()->isLineSeparator(main_body - 1))
3604 tmpx -= singleWidth(bview, row->par(), main_body-1);
3607 if (hfillExpansion(bview->buffer(), row, c)) {
3608 x += singleWidth(bview, row->par(), c);
3612 tmpx += fill_label_hfill;
3614 else if (row->par()->isSeparator(c)) {
3615 tmpx += singleWidth(bview, row->par(), c);
3617 tmpx+= fill_separator;
3619 tmpx += singleWidth(bview, row->par(), c);
3623 if ((tmpx + last_tmpx) / 2 > x) {
3628 if (vc > last + 1) // This shouldn't happen.
3632 bool const lastrow = lyxrc.rtl_support // This is not needed, but gives
3633 // some speedup if rtl_support=false
3634 && (!row->next() || row->next()->par() != row->par());
3635 bool const rtl = (lastrow)
3636 ? row->par()->isRightToLeftPar(bview->buffer()->params)
3637 : false; // If lastrow is false, we don't need to compute
3638 // the value of rtl.
3640 if (row->pos() > last) // Row is empty?
3643 ( ( rtl && left_side && vc == row->pos() && x < tmpx - 5) ||
3644 (!rtl && !left_side && vc == last + 1 && x > tmpx + 5) ))
3646 else if (vc == row->pos()) {
3648 if (bidi_level(c) % 2 == 1)
3651 c = vis2log(vc - 1);
3652 bool const rtl = (bidi_level(c) % 2 == 1);
3653 if (left_side == rtl) {
3655 boundary = isBoundary(bview->buffer(), row->par(), c);
3659 if (row->pos() <= last && c > last
3660 && row->par()->isNewline(last)) {
3661 if (bidi_level(last) % 2 == 0)
3662 tmpx -= singleWidth(bview, row->par(), last);
3664 tmpx += singleWidth(bview, row->par(), last);
3674 // returns pointer to a specified row
3675 Row * LyXText::getRow(Paragraph * par,
3676 Paragraph::size_type pos, int & y) const
3681 Row * tmprow = firstrow;
3684 // find the first row of the specified paragraph
3685 while (tmprow->next() && tmprow->par() != par) {
3686 y += tmprow->height();
3687 tmprow = tmprow->next();
3690 // now find the wanted row
3691 while (tmprow->pos() < pos
3693 && tmprow->next()->par() == par
3694 && tmprow->next()->pos() <= pos) {
3695 y += tmprow->height();
3696 tmprow = tmprow->next();