/* This file is part of * ====================================================== * * LyX, The Document Processor * * Copyright 1995 Matthias Ettrich * Copyright 1995-2001 The LyX Team. * * ====================================================== */ #include #include #include #include #include "lyxtext.h" #include "layout.h" #include "paragraph.h" #include "support/textutils.h" #include "support/LAssert.h" #include "support/lstrings.h" #include "insets/insetbib.h" #include "insets/insettext.h" #include "insets/insetspecialchar.h" #include "lyx_gui_misc.h" #include "gettext.h" #include "bufferparams.h" #include "buffer.h" #include "debug.h" #include "lyxrc.h" #include "LyXView.h" #include "Painter.h" #include "tracer.h" #include "font.h" #include "encoding.h" #include "lyxscreen.h" #include "bufferview_funcs.h" #include "BufferView.h" #include "language.h" #include "ParagraphParameters.h" #include "undo_funcs.h" #include "font.h" using std::max; using std::min; using std::endl; using std::pair; namespace { int const LYX_PAPER_MARGIN = 20; } // namespace anon extern int bibitemMaxWidth(BufferView *, LyXFont const &); int LyXText::workWidth(BufferView * bview) const { if (inset_owner) { return inset_owner->textWidth(bview); } return bview->workWidth(); } int LyXText::getRealCursorX(BufferView * bview) const { int x = cursor.x(); if (the_locking_inset && (the_locking_inset->getLyXText(bview)!=this)) x = the_locking_inset->getLyXText(bview)->getRealCursorX(bview); return x; } unsigned char LyXText::transformChar(unsigned char c, Paragraph * par, Paragraph::size_type pos) const { if (!Encodings::is_arabic(c)) if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && isdigit(c)) return c + (0xb0 - '0'); else return c; unsigned char const prev_char = pos > 0 ? par->getChar(pos-1) : ' '; unsigned char next_char = ' '; for (Paragraph::size_type i = pos+1; i < par->size(); ++i) if (!Encodings::IsComposeChar_arabic(par->getChar(i))) { next_char = par->getChar(i); break; } if (Encodings::is_arabic(next_char)) { if (Encodings::is_arabic(prev_char)) return Encodings::TransformChar(c, Encodings::FORM_MEDIAL); else return Encodings::TransformChar(c, Encodings::FORM_INITIAL); } else { if (Encodings::is_arabic(prev_char)) return Encodings::TransformChar(c, Encodings::FORM_FINAL); else return Encodings::TransformChar(c, Encodings::FORM_ISOLATED); } } // This is the comments that some of the warnings below refers to. // There are some issues in this file and I don't think they are // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that // this is a problem that has been here almost from day one and that a // larger userbase with differenct access patters triggers the bad // behaviour. (segfaults.) What I think happen is: In several places // we store the paragraph in the current cursor and then moves the // cursor. This movement of the cursor will delete paragraph at the // old position if it is now empty. This will make the temporary // pointer to the old cursor paragraph invalid and dangerous to use. // And is some cases this will trigger a segfault. I have marked some // of the cases where this happens with a warning, but I am sure there // are others in this file and in text2.C. There is also a note in // Delete() that you should read. In Delete I store the paragraph->id // instead of a pointer to the paragraph. I am pretty sure this faulty // use of temporary pointers to paragraphs that might have gotten // invalidated (through a cursor movement) before they are used, are // the cause of the strange crashes we get reported often. // // It is very tiresom to change this code, especially when it is as // hard to read as it is. Help to fix all the cases where this is done // would be greately appreciated. // // Lgb int LyXText::singleWidth(BufferView * bview, Paragraph * par, Paragraph::size_type pos) const { char const c = par->getChar(pos); return singleWidth(bview, par, pos, c); } int LyXText::singleWidth(BufferView * bview, Paragraph * par, Paragraph::size_type pos, char c) const { LyXFont const font = getFont(bview->buffer(), par, pos); // The most common case is handled first (Asger) if (IsPrintable(c)) { if (font.language()->RightToLeft()) { if (font.language()->lang() == "arabic" && (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 || lyxrc.font_norm_type == LyXRC::ISO_10646_1)) if (Encodings::IsComposeChar_arabic(c)) return 0; else c = transformChar(c, par, pos); else if (font.language()->lang() == "hebrew" && Encodings::IsComposeChar_hebrew(c)) return 0; } return lyxfont::width(c, font); } else if (IsHfillChar(c)) { return 3; /* Because of the representation * as vertical lines */ } else if (c == Paragraph::META_INSET) { Inset * tmpinset = par->getInset(pos); if (tmpinset) { #if 0 // seems not to be needed, but ... tmpinset->update(bview, font); #endif return tmpinset->width(bview, font); } else return 0; } else if (IsSeparatorChar(c)) c = ' '; else if (IsNewlineChar(c)) c = 'n'; return lyxfont::width(c, font); } // Returns the paragraph position of the last character in the specified row Paragraph::size_type LyXText::rowLast(Row const * row) const { if (row->next() == 0) return row->par()->size() - 1; else if (row->next()->par() != row->par()) return row->par()->size() - 1; else return row->next()->pos() - 1; } Paragraph::size_type LyXText::rowLastPrintable(Row const * row) const { Paragraph::size_type const last = rowLast(row); if (last >= row->pos() && row->next() && row->next()->par() == row->par() && row->par()->isSeparator(last)) return last - 1; else return last; } void LyXText::computeBidiTables(Buffer const * buf, Row * row) const { bidi_same_direction = true; if (!lyxrc.rtl_support) { bidi_start = -1; return; } bidi_start = row->pos(); bidi_end = rowLastPrintable(row); if (bidi_start > bidi_end) { bidi_start = -1; return; } if (bidi_end + 2 - bidi_start > static_cast(log2vis_list.size())) { Paragraph::size_type new_size = (bidi_end + 2 - bidi_start < 500) ? 500 : 2 * (bidi_end + 2 - bidi_start); log2vis_list.resize(new_size); vis2log_list.resize(new_size); bidi_levels.resize(new_size); } vis2log_list[bidi_end + 1 - bidi_start] = -1; log2vis_list[bidi_end + 1 - bidi_start] = -1; Paragraph::size_type stack[2]; bool const rtl_par = row->par()->getParLanguage(buf->params)->RightToLeft(); int level = 0; bool rtl = false; bool rtl0 = false; Paragraph::size_type const main_body = beginningOfMainBody(buf, row->par()); for (Paragraph::size_type lpos = bidi_start; lpos <= bidi_end; ++lpos) { bool is_space = row->par()->isLineSeparator(lpos); Paragraph::size_type const pos = (is_space && lpos + 1 <= bidi_end && !row->par()->isLineSeparator(lpos + 1) && !row->par()->isNewline(lpos + 1)) ? lpos + 1 : lpos; LyXFont font = row->par()->getFontSettings(buf->params, pos); if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() && font.number() == LyXFont::ON && row->par()->getFontSettings(buf->params, lpos-1).number() == LyXFont::ON) { font = row->par()->getFontSettings(buf->params, lpos); is_space = false; } bool new_rtl = font.isVisibleRightToLeft(); bool new_rtl0 = font.isRightToLeft(); int new_level; if (lpos == main_body - 1 && row->pos() < main_body - 1 && is_space) { new_level = (rtl_par) ? 1 : 0; new_rtl = new_rtl0 = rtl_par; } else if (new_rtl0) new_level = (new_rtl) ? 1 : 2; else new_level = (rtl_par) ? 2 : 0; if (is_space && new_level >= level) { new_level = level; new_rtl = rtl; new_rtl0 = rtl0; } int new_level2 = new_level; if (level == new_level && rtl0 != new_rtl0) { --new_level2; log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1; } else if (level < new_level) { log2vis_list[lpos - bidi_start] = (rtl) ? -1 : 1; if (new_level > rtl_par) bidi_same_direction = false; } else log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1; rtl = new_rtl; rtl0 = new_rtl0; bidi_levels[lpos - bidi_start] = new_level; while (level > new_level2) { Paragraph::size_type old_lpos = stack[--level]; int delta = lpos - old_lpos - 1; if (level % 2) delta = -delta; log2vis_list[lpos - bidi_start] += delta; log2vis_list[old_lpos - bidi_start] += delta; } while (level < new_level) stack[level++] = lpos; } while (level > 0) { Paragraph::size_type const old_lpos = stack[--level]; int delta = bidi_end - old_lpos; if (level % 2) delta = -delta; log2vis_list[old_lpos - bidi_start] += delta; } Paragraph::size_type vpos = bidi_start - 1; for (Paragraph::size_type lpos = bidi_start; lpos <= bidi_end; ++lpos) { vpos += log2vis_list[lpos - bidi_start]; vis2log_list[vpos - bidi_start] = lpos; log2vis_list[lpos - bidi_start] = vpos; } } // This method requires a previous call to ComputeBidiTables() bool LyXText::isBoundary(Buffer const * buf, Paragraph * par, Paragraph::size_type pos) const { if (!lyxrc.rtl_support || pos == 0) return false; if (!bidi_InRange(pos - 1)) { /// This can happen if pos is the first char of a row. /// Returning false in this case is incorrect! return false; } bool const rtl = bidi_level(pos - 1) % 2; bool const rtl2 = bidi_InRange(pos) ? bidi_level(pos) % 2 : par->isRightToLeftPar(buf->params); return rtl != rtl2; } bool LyXText::isBoundary(Buffer const * buf, Paragraph * par, Paragraph::size_type pos, LyXFont const & font) const { if (!lyxrc.rtl_support) return false; // This is just for speedup bool const rtl = font.isVisibleRightToLeft(); bool const rtl2 = bidi_InRange(pos) ? bidi_level(pos) % 2 : par->isRightToLeftPar(buf->params); return rtl != rtl2; } void LyXText::draw(BufferView * bview, Row const * row, Paragraph::size_type & vpos, int offset, float & x, bool cleared) { Painter & pain = bview->painter(); Paragraph::size_type pos = vis2log(vpos); char c = row->par()->getChar(pos); float tmpx = x; if (IsNewlineChar(c)) { ++vpos; // Draw end-of-line marker LyXFont const font = getFont(bview->buffer(), row->par(), pos); int const wid = lyxfont::width('n', font); int const asc = lyxfont::maxAscent(font); int const y = offset + row->baseline(); int xp[3]; int yp[3]; if (bidi_level(pos) % 2 == 0) { xp[0] = int(x + wid * 0.375); yp[0] = int(y - 0.875 * asc * 0.75); xp[1] = int(x); yp[1] = int(y - 0.500 * asc * 0.75); xp[2] = int(x + wid * 0.375); yp[2] = int(y - 0.125 * asc * 0.75); pain.lines(xp, yp, 3, LColor::eolmarker); xp[0] = int(x); yp[0] = int(y - 0.500 * asc * 0.75); xp[1] = int(x + wid); yp[1] = int(y - 0.500 * asc * 0.75); xp[2] = int(x + wid); yp[2] = int(y - asc * 0.75); pain.lines(xp, yp, 3, LColor::eolmarker); } else { xp[0] = int(x + wid * 0.625); yp[0] = int(y - 0.875 * asc * 0.75); xp[1] = int(x + wid); yp[1] = int(y - 0.500 * asc * 0.75); xp[2] = int(x + wid * 0.625); yp[2] = int(y - 0.125 * asc * 0.75); pain.lines(xp, yp, 3, LColor::eolmarker); xp[0] = int(x + wid); yp[0] = int(y - 0.500 * asc * 0.75); xp[1] = int(x); yp[1] = int(y - 0.500 * asc * 0.75); xp[2] = int(x); yp[2] = int(y - asc * 0.75); pain.lines(xp, yp, 3, LColor::eolmarker); } x += wid; return; } LyXFont font = getFont(bview->buffer(), row->par(), pos); LyXFont font2 = font; if (c == Paragraph::META_INSET) { Inset * tmpinset = row->par()->getInset(pos); if (tmpinset) { tmpinset->update(bview, font, false); tmpinset->draw(bview, font, offset+row->baseline(), x, cleared); if (!need_break_row && !inset_owner && bview->text->status() == CHANGED_IN_DRAW) { if (row->previous() && row->previous()->par() == row->par()) breakAgainOneRow(bview, row->previous()); setCursor(bview, cursor.par(), cursor.pos()); need_break_row = const_cast(row); } } ++vpos; if (lyxrc.mark_foreign_language && font.language() != ignore_language && font.language() != bview->buffer()->params.language) { int const y = offset + row->height() - 1; pain.line(int(tmpx), y, int(x), y, LColor::language); } return; } /* usual characters, no insets */ // Collect character that we can draw in one command // This is dirty, but fast. Notice that it will never be too small. // For the record, I'll note that Microsoft Word has a limit // of 768 here. We have none :-) (Asger) // Ok. I am the first to admit that the use of std::string will be // a tiny bit slower than using a POD char array. However, I claim // that this slowdown is so small that it is close to inperceptive. // So IMHO we should go with the easier and clearer implementation. // And even if 1024 is a large number here it might overflow, string // will only overflow if the machine is out of memory... static string textstring; textstring = c; ++vpos; Paragraph::size_type const last = rowLastPrintable(row); if (font.language()->lang() == "hebrew") { if (Encodings::IsComposeChar_hebrew(c)) { int const width = lyxfont::width(c, font2); int dx = 0; for (Paragraph::size_type i = pos-1; i >= 0; --i) { c = row->par()->getChar(i); if (!Encodings::IsComposeChar_hebrew(c)) { if (IsPrintableNonspace(c)) { int const width2 = singleWidth(bview, row->par(), i, c); dx = (c == 'ø' || c == 'ã') // dalet / resh ? width2 - width : (width2 - width) / 2; } break; } } // Draw nikud pain.text(int(x) + dx, offset + row->baseline(), textstring, font); } else { while (vpos <= last && (pos = vis2log(vpos)) >= 0 && IsPrintableNonspace(c = row->par()->getChar(pos)) && !Encodings::IsComposeChar_hebrew(c) && font2 == getFont(bview->buffer(), row->par(), pos)) { textstring += c; ++vpos; } // Draw text and set the new x position pain.text(int(x), offset + row->baseline(), textstring, font); x += lyxfont::width(textstring, font); } } else if (font.language()->lang() == "arabic" && (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 || lyxrc.font_norm_type == LyXRC::ISO_10646_1)) { if (Encodings::IsComposeChar_arabic(c)) { c = transformChar(c, row->par(), pos); textstring = c; int const width = lyxfont::width(c, font2); int dx = 0; for (Paragraph::size_type i = pos-1; i >= 0; --i) { c = row->par()->getChar(i); if (!Encodings::IsComposeChar_arabic(c)) { if (IsPrintableNonspace(c)) { int const width2 = singleWidth(bview, row->par(), i, c); dx = (width2 - width) / 2; } break; } } // Draw nikud pain.text(int(x) + dx, offset + row->baseline(), textstring, font); } else { textstring = transformChar(c, row->par(), pos); while (vpos <= last && (pos = vis2log(vpos)) >= 0 && IsPrintableNonspace(c = row->par()->getChar(pos)) && !Encodings::IsComposeChar_arabic(c) && font2 == getFont(bview->buffer(), row->par(), pos)) { c = transformChar(c, row->par(), pos); textstring += c; ++vpos; } // Draw text and set the new x position pain.text(int(x), offset + row->baseline(), textstring, font); x += lyxfont::width(textstring, font); } } else { while (vpos <= last && (pos = vis2log(vpos)) >= 0 && IsPrintableNonspace(c = row->par()->getChar(pos)) && font2 == getFont(bview->buffer(), row->par(), pos)) { textstring += c; ++vpos; } // Draw text and set the new x position pain.text(int(x), offset + row->baseline(), textstring, font); x += lyxfont::width(textstring, font); } #ifdef WITH_WARNINGS if ((font.language() == inherit_language) || (font.language() == ignore_language)) lyxerr << "No this shouldn't happen!\n"; #endif if (lyxrc.mark_foreign_language && font.language() != bview->buffer()->params.language) { int const y = offset + row->height() - 1; pain.line(int(tmpx), y, int(x), y, LColor::language); } // If we want ulem.sty support, drawing // routines should go here. (Asger) // Why shouldn't LyXFont::drawText handle it internally? } // Returns the left beginning of the text. // This information cannot be taken from the layouts-objekt, because in // LaTeX the beginning of the text fits in some cases (for example sections) // exactly the label-width. int LyXText::leftMargin(BufferView * bview, Row const * row) const { LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()); string parindent = layout.parindent; int x = LYX_PAPER_MARGIN; x += lyxfont::signedWidth(textclasslist .TextClass(bview->buffer()->params.textclass) .leftmargin(), textclasslist .TextClass(bview->buffer()->params.textclass) .defaultfont()); // this is the way, LyX handles the LaTeX-Environments. // I have had this idea very late, so it seems to be a // later added hack and this is true if (!row->par()->getDepth()) { if (!row->par()->getLayout()) { // find the previous same level paragraph if (row->par()->previous()) { Paragraph * newpar = row->par() ->depthHook(row->par()->getDepth()); if (newpar && textclasslist.Style(bview->buffer()->params.textclass, newpar->getLayout()) .nextnoindent) parindent.erase(); } } } else { // find the next level paragraph Paragraph * newpar = row->par()->outerHook(); // make a corresponding row. Needed to call LeftMargin() // check wether it is a sufficent paragraph if (newpar && textclasslist .Style(bview->buffer()->params.textclass, newpar->getLayout()).isEnvironment()) { Row dummyrow; dummyrow.par(newpar); dummyrow.pos(newpar->size()); x = leftMargin(bview, &dummyrow); } else { // this is no longer an error, because this function // is used to clear impossible depths after changing // a layout. Since there is always a redo, // LeftMargin() is always called row->par()->params().depth(0); } if (newpar && !row->par()->getLayout()) { if (newpar->params().noindent()) parindent.erase(); else parindent = textclasslist .Style(bview->buffer()->params.textclass, newpar->getLayout()).parindent; } } LyXFont const labelfont = getFont(bview->buffer(), row->par(), -2); switch (layout.margintype) { case MARGIN_DYNAMIC: if (!layout.leftmargin.empty()) { x += lyxfont::signedWidth(layout.leftmargin, textclasslist .TextClass(bview->buffer()->params. textclass) .defaultfont()); } if (!row->par()->getLabelstring().empty()) { x += lyxfont::signedWidth(layout.labelindent, labelfont); x += lyxfont::width(row->par()->getLabelstring(), labelfont); x += lyxfont::width(layout.labelsep, labelfont); } break; case MARGIN_MANUAL: x += lyxfont::signedWidth(layout.labelindent, labelfont); if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) { if (!row->par()->getLabelWidthString().empty()) { x += lyxfont::width(row->par()->getLabelWidthString(), labelfont); x += lyxfont::width(layout.labelsep, labelfont); } } break; case MARGIN_STATIC: x += lyxfont::signedWidth(layout.leftmargin, textclasslist.TextClass(bview->buffer()->params.textclass).defaultfont()) * 4 / (row->par()->getDepth() + 4); break; case MARGIN_FIRST_DYNAMIC: if (layout.labeltype == LABEL_MANUAL) { if (row->pos() >= beginningOfMainBody(bview->buffer(), row->par())) { x += lyxfont::signedWidth(layout.leftmargin, labelfont); } else { x += lyxfont::signedWidth(layout.labelindent, labelfont); } } else if (row->pos() // Special case to fix problems with // theorems (JMarc) || (layout.labeltype == LABEL_STATIC && layout.latextype == LATEX_ENVIRONMENT && ! row->par()->isFirstInSequence())) { x += lyxfont::signedWidth(layout.leftmargin, labelfont); } else if (layout.labeltype != LABEL_TOP_ENVIRONMENT && layout.labeltype != LABEL_BIBLIO && layout.labeltype != LABEL_CENTERED_TOP_ENVIRONMENT) { x += lyxfont::signedWidth(layout.labelindent, labelfont); x += lyxfont::width(layout.labelsep, labelfont); x += lyxfont::width(row->par()->getLabelstring(), labelfont); } break; case MARGIN_RIGHT_ADDRESS_BOX: { // ok, a terrible hack. The left margin depends on the widest // row in this paragraph. Do not care about footnotes, they // are *NOT* allowed in the LaTeX realisation of this layout. // find the first row of this paragraph Row const * tmprow = row; while (tmprow->previous() && tmprow->previous()->par() == row->par()) tmprow = tmprow->previous(); int minfill = tmprow->fill(); while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); if (tmprow->fill() < minfill) minfill = tmprow->fill(); } x += lyxfont::signedWidth(layout.leftmargin, textclasslist .TextClass(bview->buffer()->params.textclass) .defaultfont()); x += minfill; } break; } int align; // wrong type if (row->par()->params().align() == LYX_ALIGN_LAYOUT) align = layout.align; else align = row->par()->params().align(); // set the correct parindent if (row->pos() == 0) { if ((layout.labeltype == LABEL_NO_LABEL || layout.labeltype == LABEL_TOP_ENVIRONMENT || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT || (layout.labeltype == LABEL_STATIC && layout.latextype == LATEX_ENVIRONMENT && ! row->par()->isFirstInSequence())) && align == LYX_ALIGN_BLOCK && !row->par()->params().noindent() && (row->par()->layout || bview->buffer()->params.paragraph_separation == BufferParams::PARSEP_INDENT)) x += lyxfont::signedWidth(parindent, textclasslist .TextClass(bview->buffer()->params .textclass) .defaultfont()); else if (layout.labeltype == LABEL_BIBLIO) { // ale970405 Right width for bibitems x += bibitemMaxWidth(bview,textclasslist .TextClass(bview->buffer()->params .textclass) .defaultfont()); } } return x; } int LyXText::rightMargin(Buffer const * buf, Row const * row) const { LyXLayout const & layout = textclasslist.Style(buf->params.textclass, row->par()->getLayout()); int x = LYX_PAPER_MARGIN + lyxfont::signedWidth(textclasslist .TextClass(buf->params.textclass) .rightmargin(), textclasslist .TextClass(buf->params.textclass) .defaultfont()); // this is the way, LyX handles the LaTeX-Environments. // I have had this idea very late, so it seems to be a // later added hack and this is true if (row->par()->getDepth()) { // find the next level paragraph Paragraph * newpar = row->par(); do { newpar = newpar->previous(); } while (newpar && newpar->getDepth() >= row->par()->getDepth()); // make a corresponding row. Needed to call LeftMargin() // check wether it is a sufficent paragraph if (newpar && textclasslist.Style(buf->params.textclass, newpar->getLayout()) .isEnvironment()) { Row dummyrow; dummyrow.par(newpar); dummyrow.pos(0); x = rightMargin(buf, &dummyrow); } else { // this is no longer an error, because this function // is used to clear impossible depths after changing // a layout. Since there is always a redo, // LeftMargin() is always called row->par()->params().depth(0); } } //lyxerr << "rightmargin: " << layout->rightmargin << endl; x += lyxfont::signedWidth(layout.rightmargin, textclasslist .TextClass(buf->params.textclass) .defaultfont()) * 4 / (row->par()->getDepth() + 4); return x; } int LyXText::labelEnd(BufferView * bview, Row const * row) const { if (textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()).margintype == MARGIN_MANUAL) { Row tmprow; tmprow = *row; tmprow.pos(row->par()->size()); return leftMargin(bview, &tmprow); /* just the beginning of the main body */ } else return 0; /* LabelEnd is only needed, if the layout fills a flushleft label. */ } // get the next breakpoint in a given paragraph Paragraph::size_type LyXText::nextBreakPoint(BufferView * bview, Row const * row, int width) const { Paragraph * par = row->par(); if (width < 0) return par->size(); Paragraph::size_type const pos = row->pos(); // position of the last possible breakpoint // -1 isn't a suitable value, but a flag Paragraph::size_type last_separator = -1; width -= rightMargin(bview->buffer(), row); Paragraph::size_type const main_body = beginningOfMainBody(bview->buffer(), par); LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass, par->getLayout()); Paragraph::size_type i = pos; if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) { /* special code for right address boxes, only newlines count */ while (i < par->size()) { if (par->isNewline(i)) { last_separator = i; i = par->size() - 1; // this means break //x = width; } else if (par->getChar(i) == Paragraph::META_INSET && par->getInset(i) && par->getInset(i)->display()){ par->getInset(i)->display(false); } ++i; } } else { // Last position is an invariant Paragraph::size_type const last = par->size(); // this is the usual handling int x = leftMargin(bview, row); bool doitonetime = true; while (doitonetime || ((x < width) && (i < last))) { doitonetime = false; char const c = par->getChar(i); if (IsNewlineChar(c)) { last_separator = i; x = width; // this means break } else if (c == Paragraph::META_INSET && par->getInset(i)) { // check wether a Display() inset is // valid here. if not, change it to // non-display if (par->getInset(i)->display() && (layout.isCommand() || (layout.labeltype == LABEL_MANUAL && i < beginningOfMainBody(bview->buffer(), par)))) { // display istn't allowd par->getInset(i)->display(false); x += singleWidth(bview, par, i, c); } else if (par->getInset(i)->display() || par->getInset(i)->needFullRow()) { // So break the line here if (i == pos) { if (pos < last-1) { last_separator = i; if (IsLineSeparatorChar(par->getChar(i+1))) ++last_separator; } else last_separator = last; // to avoid extra rows } else last_separator = i - 1; x = width; // this means break } else { x += singleWidth(bview, par, i, c); } } else { if (IsLineSeparatorChar(c)) last_separator = i; x += singleWidth(bview, par, i, c); } ++i; if (i == main_body) { x += lyxfont::width(layout.labelsep, getFont(bview->buffer(), par, -2)); if (par->isLineSeparator(i - 1)) x-= singleWidth(bview, par, i - 1); int left_margin = labelEnd(bview, row); if (x < left_margin) x = left_margin; } } // end of paragraph is always a suitable separator if (i == last && x < width) last_separator = i; } // well, if last_separator is still 0, the line isn't breakable. // don't care and cut simply at the end if (last_separator < 0) { last_separator = i; } // manual labels cannot be broken in LaTeX, do not care if (main_body && last_separator < main_body) last_separator = main_body - 1; return last_separator; } // returns the minimum space a row needs on the screen in pixel int LyXText::fill(BufferView * bview, Row * row, int paper_width) const { if (paper_width < 0) return 20; int w; // get the pure distance Paragraph::size_type const last = rowLastPrintable(row); // special handling of the right address boxes if (textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()).margintype == MARGIN_RIGHT_ADDRESS_BOX) { int const tmpfill = row->fill(); row->fill(0); // the minfill in MarginLeft() w = leftMargin(bview, row); row->fill(tmpfill); } else w = leftMargin(bview, row); LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()); Paragraph::size_type const main_body = beginningOfMainBody(bview->buffer(), row->par()); Paragraph::size_type i = row->pos(); while (i <= last) { if (main_body > 0 && i == main_body) { w += lyxfont::width(layout.labelsep, getFont(bview->buffer(), row->par(), -2)); if (row->par()->isLineSeparator(i - 1)) w -= singleWidth(bview, row->par(), i - 1); int left_margin = labelEnd(bview, row); if (w < left_margin) w = left_margin; } w += singleWidth(bview, row->par(), i); ++i; } if (main_body > 0 && main_body > last) { w += lyxfont::width(layout.labelsep, getFont(bview->buffer(), row->par(), -2)); if (last >= 0 && row->par()->isLineSeparator(last)) w -= singleWidth(bview, row->par(), last); int const left_margin = labelEnd(bview, row); if (w < left_margin) w = left_margin; } int const fill = paper_width - w - rightMargin(bview->buffer(), row); #ifdef WITH_WARNINGS #warning Please fix me (Jug!) #endif #if 0 if (fill < 0) return 0; #endif return fill; } // returns the minimum space a manual label needs on the screen in pixel int LyXText::labelFill(BufferView * bview, Row const * row) const { Paragraph::size_type last = beginningOfMainBody(bview->buffer(), row->par()) - 1; // -1 because a label ends either with a space that is in the label, // or with the beginning of a footnote that is outside the label. // I don't understand this code in depth, but sometimes "last" is // less than 0 and this causes a crash. This fix seems to work // correctly, but I bet the real error is elsewhere. The bug is // triggered when you have an open footnote in a paragraph // environment with a manual label. (Asger) if (last < 0) last = 0; if (row->par()->isLineSeparator(last)) /* a sepearator at this end does not count */ --last; int w = 0; int i = row->pos(); while (i <= last) { w += singleWidth(bview, row->par(), i); ++i; } int fill = 0; if (!row->par()->params().labelWidthString().empty()) { fill = max(lyxfont::width(row->par()->params().labelWidthString(), getFont(bview->buffer(), row->par(), -2)) - w, 0); } return fill; } // returns the number of separators in the specified row. The separator // on the very last column doesnt count int LyXText::numberOfSeparators(Buffer const * buf, Row const * row) const { Paragraph::size_type const last = rowLast(row); Paragraph::size_type p = max(row->pos(), beginningOfMainBody(buf, row->par())); int n = 0; for (; p < last; ++p) { if (row->par()->isSeparator(p)) { ++n; } } return n; } // returns the number of hfills in the specified row. The LyX-Hfill is // a LaTeX \hfill so that the hfills at the beginning and at the end were // ignored. This is *MUCH* more usefull than not to ignore! int LyXText::numberOfHfills(Buffer const * buf, Row const * row) const { Paragraph::size_type const last = rowLast(row); Paragraph::size_type first = row->pos(); if (first) { /* hfill *DO* count at the beginning * of paragraphs! */ while(first <= last && row->par()->isHfill(first)) ++first; } first = max(first, beginningOfMainBody(buf, row->par())); int n = 0; for (int p = first; p <= last; ++p) { // last, because the end is ignored! if (row->par()->isHfill(p)) { ++n; } } return n; } // like NumberOfHfills, but only those in the manual label! int LyXText::numberOfLabelHfills(Buffer const * buf, Row const * row) const { Paragraph::size_type last = rowLast(row); Paragraph::size_type first = row->pos(); if (first) { /* hfill *DO* count at the beginning * of paragraphs! */ while(first < last && row->par()->isHfill(first)) ++first; } last = min(last, beginningOfMainBody(buf, row->par())); int n = 0; for (Paragraph::size_type p = first; p < last; ++p) { // last, because the end is ignored! if (row->par()->isHfill(p)) { ++n; } } return n; } // returns true, if a expansion is needed. // Rules are given by LaTeX bool LyXText::hfillExpansion(Buffer const * buf, Row const * row_ptr, Paragraph::size_type pos) const { // by the way, is it a hfill? if (!row_ptr->par()->isHfill(pos)) return false; // at the end of a row it does not count if (pos >= rowLast(row_ptr)) return false; // at the beginning of a row it does not count, if it is not // the first row of a paragaph if (!row_ptr->pos()) return true; // in some labels it does not count if (textclasslist.Style(buf->params.textclass, row_ptr->par()->getLayout()).margintype != MARGIN_MANUAL && pos < beginningOfMainBody(buf, row_ptr->par())) return false; // if there is anything between the first char of the row and // the sepcified position that is not a newline and not a hfill, // the hfill will count, otherwise not Paragraph::size_type i = row_ptr->pos(); while (i < pos && (row_ptr->par()->isNewline(i) || row_ptr->par()->isHfill(i))) ++i; return i != pos; } LColor::color LyXText::backgroundColor() { if (inset_owner) return inset_owner->backgroundColor(); else return LColor::background; } void LyXText::setHeightOfRow(BufferView * bview, Row * row_ptr) const { /* get the maximum ascent and the maximum descent */ int asc = 0; int desc = 0; float layoutasc = 0; float layoutdesc = 0; float tmptop = 0; LyXFont tmpfont; Inset * tmpinset = 0; /* this must not happen before the currentrow for clear reasons. so the trick is just to set the current row onto this row */ int unused_y; getRow(row_ptr->par(), row_ptr->pos(), unused_y); /* ok , let us initialize the maxasc and maxdesc value. * This depends in LaTeX of the font of the last character * in the paragraph. The hack below is necessary because * of the possibility of open footnotes */ /* Correction: only the fontsize count. The other properties are taken from the layoutfont. Nicer on the screen :) */ Paragraph * par = row_ptr->par(); Paragraph * firstpar = row_ptr->par(); LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass, firstpar->getLayout()); // as max get the first character of this row then it can increes but not // decrees the height. Just some point to start with so we don't have to // do the assignment below too often. LyXFont font = getFont(bview->buffer(), par, row_ptr->pos()); LyXFont::FONT_SIZE const tmpsize = font.size(); font = getFont(bview->buffer(), par, -1); LyXFont::FONT_SIZE const size = font.size(); font.setSize(tmpsize); LyXFont labelfont = getFont(bview->buffer(), par, -2); float spacing_val = 1.0; if (!row_ptr->par()->params().spacing().isDefault()) { spacing_val = row_ptr->par()->params().spacing().getValue(); } else { spacing_val = bview->buffer()->params.spacing.getValue(); } //lyxerr << "spacing_val = " << spacing_val << endl; int maxasc = int(lyxfont::maxAscent(font) * layout.spacing.getValue() * spacing_val); int maxdesc = int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val); int const pos_end = rowLast(row_ptr); int labeladdon = 0; int maxwidth = 0; // Check if any insets are larger for (int pos = row_ptr->pos(); pos <= pos_end; ++pos) { if (row_ptr->par()->getChar(pos) == Paragraph::META_INSET) { tmpfont = getFont(bview->buffer(), row_ptr->par(), pos); tmpinset = row_ptr->par()->getInset(pos); if (tmpinset) { #if 1 // this is needed for deep update on initialitation tmpinset->update(bview, tmpfont); #endif asc = tmpinset->ascent(bview, tmpfont); desc = tmpinset->descent(bview, tmpfont); maxwidth += tmpinset->width(bview, tmpfont); maxasc = max(maxasc, asc); maxdesc = max(maxdesc, desc); } } else { maxwidth += singleWidth(bview, row_ptr->par(), pos); } } // Check if any custom fonts are larger (Asger) // This is not completely correct, but we can live with the small, // cosmetic error for now. LyXFont::FONT_SIZE maxsize = row_ptr->par()->highestFontInRange(row_ptr->pos(), pos_end, size); if (maxsize > font.size()) { font.setSize(maxsize); asc = lyxfont::maxAscent(font); desc = lyxfont::maxDescent(font); if (asc > maxasc) maxasc = asc; if (desc > maxdesc) maxdesc = desc; } // This is nicer with box insets: ++maxasc; ++maxdesc; row_ptr->ascent_of_text(maxasc); // is it a top line? if (!row_ptr->pos() && (row_ptr->par() == firstpar)) { // some parksips VERY EASY IMPLEMENTATION if (bview->buffer()->params.paragraph_separation == BufferParams::PARSEP_SKIP) { if (layout.isParagraph() && firstpar->getDepth() == 0 && firstpar->previous()) { maxasc += bview->buffer()->params.getDefSkip().inPixels(bview); } else if (firstpar->previous() && textclasslist.Style(bview->buffer()->params.textclass, firstpar->previous()-> getLayout()).isParagraph() && firstpar->previous()->getDepth() == 0) { // is it right to use defskip here too? (AS) maxasc += bview->buffer()->params.getDefSkip().inPixels(bview); } } // the paper margins if (!row_ptr->par()->previous() && bv_owner) maxasc += LYX_PAPER_MARGIN; // add the vertical spaces, that the user added if (firstpar->params().spaceTop().kind() != VSpace::NONE) maxasc += int(firstpar->params().spaceTop().inPixels(bview)); // do not forget the DTP-lines! // there height depends on the font of the nearest character if (firstpar->params().lineTop()) maxasc += 2 * lyxfont::ascent('x', getFont(bview->buffer(), firstpar, 0)); // and now the pagebreaks if (firstpar->params().pagebreakTop()) maxasc += 3 * defaultHeight(); // This is special code for the chapter, since the label of this // layout is printed in an extra row if (layout.labeltype == LABEL_COUNTER_CHAPTER && bview->buffer()->params.secnumdepth >= 0) { float spacing_val = 1.0; if (!row_ptr->par()->params().spacing().isDefault()) { spacing_val = row_ptr->par()->params().spacing().getValue(); } else { spacing_val = bview->buffer()->params.spacing.getValue(); } labeladdon = int(lyxfont::maxDescent(labelfont) * layout.spacing.getValue() * spacing_val) + int(lyxfont::maxAscent(labelfont) * layout.spacing.getValue() * spacing_val); } // special code for the top label if ((layout.labeltype == LABEL_TOP_ENVIRONMENT || layout.labeltype == LABEL_BIBLIO || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) && row_ptr->par()->isFirstInSequence() && !row_ptr->par()->getLabelstring().empty()) { float spacing_val = 1.0; if (!row_ptr->par()->params().spacing().isDefault()) { spacing_val = row_ptr->par()->params().spacing().getValue(); } else { spacing_val = bview->buffer()->params.spacing.getValue(); } labeladdon = int( (lyxfont::maxAscent(labelfont) * layout.spacing.getValue() * spacing_val) +(lyxfont::maxDescent(labelfont) * layout.spacing.getValue() * spacing_val) + layout.topsep * defaultHeight() + layout.labelbottomsep * defaultHeight()); } // and now the layout spaces, for example before and after a section, // or between the items of a itemize or enumerate environment if (!firstpar->params().pagebreakTop()) { Paragraph * prev = row_ptr->par()->previous(); if (prev) prev = row_ptr->par()->depthHook(row_ptr->par()->getDepth()); if (prev && prev->getLayout() == firstpar->getLayout() && prev->getDepth() == firstpar->getDepth() && prev->getLabelWidthString() == firstpar->getLabelWidthString()) { layoutasc = (layout.itemsep * defaultHeight()); } else if (row_ptr->previous()) { tmptop = layout.topsep; if (row_ptr->previous()->par()->getDepth() >= row_ptr->par()->getDepth()) tmptop -= textclasslist.Style(bview->buffer()->params.textclass, row_ptr->previous()->par()-> getLayout()).bottomsep; if (tmptop > 0) layoutasc = (tmptop * defaultHeight()); } else if (row_ptr->par()->params().lineTop()) { tmptop = layout.topsep; if (tmptop > 0) layoutasc = (tmptop * defaultHeight()); } prev = row_ptr->par()->outerHook(); if (prev) { maxasc += int(textclasslist.Style(bview->buffer()->params.textclass, prev->getLayout()).parsep * defaultHeight()); } else { if (firstpar->previous() && firstpar->previous()->getDepth() == 0 && firstpar->previous()->getLayout() != firstpar->getLayout()) { // avoid parsep } else if (firstpar->previous()) { maxasc += int(layout.parsep * defaultHeight()); } } } } // is it a bottom line? if (row_ptr->par() == par && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par())) { // the paper margins if (!par->next() && bv_owner) maxdesc += LYX_PAPER_MARGIN; // add the vertical spaces, that the user added if (firstpar->params().spaceBottom().kind() != VSpace::NONE) maxdesc += int(firstpar->params().spaceBottom().inPixels(bview)); // do not forget the DTP-lines! // there height depends on the font of the nearest character if (firstpar->params().lineBottom()) maxdesc += 2 * lyxfont::ascent('x', getFont(bview->buffer(), par, par->size() - 1)); // and now the pagebreaks if (firstpar->params().pagebreakBottom()) maxdesc += 3 * defaultHeight(); // and now the layout spaces, for example before and after // a section, or between the items of a itemize or enumerate // environment if (!firstpar->params().pagebreakBottom() && row_ptr->par()->next()) { Paragraph * nextpar = row_ptr->par()->next(); Paragraph * comparepar = row_ptr->par(); float usual = 0; float unusual = 0; if (comparepar->getDepth() > nextpar->getDepth()) { usual = (textclasslist.Style(bview->buffer()->params.textclass, comparepar->getLayout()).bottomsep * defaultHeight()); comparepar = comparepar->depthHook(nextpar->getDepth()); if (comparepar->getLayout()!= nextpar->getLayout() || nextpar->getLabelWidthString() != comparepar->getLabelWidthString()) { unusual = (textclasslist.Style(bview->buffer()->params.textclass, comparepar->getLayout()).bottomsep * defaultHeight()); } if (unusual > usual) layoutdesc = unusual; else layoutdesc = usual; } else if (comparepar->getDepth() == nextpar->getDepth()) { if (comparepar->getLayout()!= nextpar->getLayout() || nextpar->getLabelWidthString() != comparepar->getLabelWidthString()) layoutdesc = int(textclasslist.Style(bview->buffer()->params.textclass, comparepar->getLayout()).bottomsep * defaultHeight()); } } } // incalculate the layout spaces maxasc += int(layoutasc * 2 / (2 + firstpar->getDepth())); maxdesc += int(layoutdesc * 2 / (2 + firstpar->getDepth())); // calculate the new height of the text height -= row_ptr->height(); row_ptr->height(maxasc + maxdesc + labeladdon); row_ptr->baseline(maxasc + labeladdon); height += row_ptr->height(); float x; float dummy; prepareToPrint(bview, row_ptr, x, dummy, dummy, dummy, false); row_ptr->width(int(maxwidth + x)); if (inset_owner) { Row * r = firstrow; width = max(0,workWidth(bview)); while(r) { if (r->width() > width) width = r->width(); r = r->next(); } } } /* Appends the implicit specified paragraph behind the specified row, * start at the implicit given position */ void LyXText::appendParagraph(BufferView * bview, Row * row) const { bool not_ready = true; // The last character position of a paragraph is an invariant so we can // safely get it here. (Asger) int const lastposition = row->par()->size(); do { // Get the next breakpoint int z = nextBreakPoint(bview, row, workWidth(bview)); Row * tmprow = row; // Insert the new row if (z < lastposition) { ++z; insertRow(row, row->par(), z); row = row->next(); row->height(0); } else not_ready = false; // Set the dimensions of the row #ifdef WITH_WARNINGS #warning Something is rotten here! (Jug) #endif tmprow->fill(fill(bview, tmprow, workWidth(bview))); setHeightOfRow(bview, tmprow); } while (not_ready); } void LyXText::breakAgain(BufferView * bview, Row * row) const { bool not_ready = true; do { // get the next breakpoint Paragraph::size_type z = nextBreakPoint(bview, row, workWidth(bview)); Row * tmprow = row; if (z < row->par()->size()) { if (!row->next() || (row->next() && row->next()->par() != row->par())) { // insert a new row ++z; insertRow(row, row->par(), z); row = row->next(); row->height(0); } else { row = row->next(); ++z; if (row->pos() == z) not_ready = false; // the rest will not change else { row->pos(z); } } } else { /* if there are some rows too much, delete them */ /* only if you broke the whole paragraph! */ Row * tmprow2 = row; while (tmprow2->next() && tmprow2->next()->par() == row->par()) { tmprow2 = tmprow2->next(); } while (tmprow2 != row) { tmprow2 = tmprow2->previous(); removeRow(tmprow2->next()); } not_ready = false; } /* set the dimensions of the row */ tmprow->fill(fill(bview, tmprow, workWidth(bview))); setHeightOfRow(bview, tmprow); } while (not_ready); } // this is just a little changed version of break again void LyXText::breakAgainOneRow(BufferView * bview, Row * row) { // get the next breakpoint Paragraph::size_type z = nextBreakPoint(bview, row, workWidth(bview)); Row * tmprow = row; if (z < row->par()->size()) { if (!row->next() || (row->next() && row->next()->par() != row->par())) { /* insert a new row */ ++z; insertRow(row, row->par(), z); row = row->next(); row->height(0); } else { row= row->next(); ++z; if (row->pos() != z) row->pos(z); } } else { // if there are some rows too much, delete them // only if you broke the whole paragraph! Row * tmprow2 = row; while (tmprow2->next() && tmprow2->next()->par() == row->par()) { tmprow2 = tmprow2->next(); } while (tmprow2 != row) { tmprow2 = tmprow2->previous(); removeRow(tmprow2->next()); } } // set the dimensions of the row tmprow->fill(fill(bview, tmprow, workWidth(bview))); setHeightOfRow(bview, tmprow); } void LyXText::breakParagraph(BufferView * bview, char keep_layout) { LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass, cursor.par()->getLayout()); // this is only allowed, if the current paragraph is not empty or caption if ((cursor.par()->size() <= 0) && layout.labeltype!= LABEL_SENSITIVE) return; setUndo(bview, Undo::INSERT,cursor.par(),cursor.par()->next()); // Always break behind a space // // It is better to erase the space (Dekel) if (cursor.pos() < cursor.par()->size() && cursor.par()->isLineSeparator(cursor.pos())) cursor.par()->erase(cursor.pos()); // cursor.pos(cursor.pos() + 1); // break the paragraph if (keep_layout) keep_layout = 2; else keep_layout = layout.isEnvironment(); cursor.par()->breakParagraph(bview->buffer()->params, cursor.pos(), keep_layout); // well this is the caption hack since one caption is really enough if (layout.labeltype == LABEL_SENSITIVE) { if (!cursor.pos()) // set to standard-layout cursor.par()->setLayout(0); else // set to standard-layout cursor.par()->next()->setLayout(0); } /* if the cursor is at the beginning of a row without prior newline, * move one row up! * This touches only the screen-update. Otherwise we would may have * an empty row on the screen */ if (cursor.pos() && !cursor.row()->par()->isNewline(cursor.row()->pos() - 1) && cursor.row()->pos() == cursor.pos()) { cursorLeft(bview); } status(bview, LyXText::NEED_MORE_REFRESH); refresh_row = cursor.row(); refresh_y = cursor.y() - cursor.row()->baseline(); // Do not forget the special right address boxes if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) { while (refresh_row->previous() && refresh_row->previous()->par() == refresh_row->par()) { refresh_row = refresh_row->previous(); refresh_y -= refresh_row->height(); } } removeParagraph(cursor.row()); // set the dimensions of the cursor row cursor.row()->fill(fill(bview, cursor.row(), workWidth(bview))); setHeightOfRow(bview, cursor.row()); while (cursor.par()->next()->size() && cursor.par()->next()->isNewline(0)) cursor.par()->next()->erase(0); insertParagraph(bview, cursor.par()->next(), cursor.row()); updateCounters(bview, cursor.row()->previous()); /* This check is necessary. Otherwise the new empty paragraph will * be deleted automatically. And it is more friendly for the user! */ if (cursor.pos()) setCursor(bview, cursor.par()->next(), 0); else setCursor(bview, cursor.par(), 0); if (cursor.row()->next()) breakAgain(bview, cursor.row()->next()); need_break_row = 0; } // Just a macro to make some thing easier. void LyXText::redoParagraph(BufferView * bview) const { clearSelection(); redoParagraphs(bview, cursor, cursor.par()->next()); setCursorIntern(bview, cursor.par(), cursor.pos()); } /* insert a character, moves all the following breaks in the * same Paragraph one to the right and make a rebreak */ void LyXText::insertChar(BufferView * bview, char c) { setUndo(bview, Undo::INSERT, cursor.par(), cursor.par()->next()); // When the free-spacing option is set for the current layout, // disable the double-space checking bool const freeSpacing = textclasslist.Style(bview->buffer()->params.textclass, cursor.row()->par()->getLayout()).free_spacing; if (lyxrc.auto_number) { static string const number_operators = "+-/*"; static string const number_unary_operators = "+-"; static string const number_seperators = ".,:"; if (current_font.number() == LyXFont::ON) { if (!isdigit(c) && !contains(number_operators, c) && !(contains(number_seperators, c) && cursor.pos() >= 1 && cursor.pos() < cursor.par()->size() && getFont(bview->buffer(), cursor.par(), cursor.pos()).number() == LyXFont::ON && getFont(bview->buffer(), cursor.par(), cursor.pos()-1).number() == LyXFont::ON) ) number(bview); // Set current_font.number to OFF } else if (isdigit(c) && real_current_font.isVisibleRightToLeft()) { number(bview); // Set current_font.number to ON if (cursor.pos() > 0) { char const c = cursor.par()->getChar(cursor.pos() - 1); if (contains(number_unary_operators, c) && (cursor.pos() == 1 || cursor.par()->isSeparator(cursor.pos() - 2) || cursor.par()->isNewline(cursor.pos() - 2) ) ) { setCharFont(bview->buffer(), cursor.par(), cursor.pos() - 1, current_font); } else if (contains(number_seperators, c) && cursor.pos() >= 2 && getFont(bview->buffer(), cursor.par(), cursor.pos()-2).number() == LyXFont::ON) { setCharFont(bview->buffer(), cursor.par(), cursor.pos() - 1, current_font); } } } } /* First check, if there will be two blanks together or a blank at the beginning of a paragraph. I decided to handle blanks like normal characters, the main difference are the special checks when calculating the row.fill (blank does not count at the end of a row) and the check here */ // The bug is triggered when we type in a description environment: // The current_font is not changed when we go from label to main text // and it should (along with realtmpfont) when we type the space. // CHECK There is a bug here! (Asger) LyXFont realtmpfont = real_current_font; LyXFont rawtmpfont = current_font; /* store the current font. * This is because of the use * of cursor movements. The moving * cursor would refresh the * current font */ // Get the font that is used to calculate the baselineskip Paragraph::size_type const lastpos = cursor.par()->size(); LyXFont rawparfont = cursor.par()->getFontSettings(bview->buffer()->params, lastpos - 1); bool jumped_over_space = false; if (!freeSpacing && IsLineSeparatorChar(c)) { if ((cursor.pos() > 0 && cursor.par()->isLineSeparator(cursor.pos() - 1)) || (cursor.pos() > 0 && cursor.par()->isNewline(cursor.pos() - 1)) || (cursor.pos() == 0)) { static bool sent_space_message = false; if (!sent_space_message) { if (cursor.pos() == 0) bview->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial.")); else bview->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial.")); sent_space_message = true; } charInserted(); return; } } else if (IsNewlineChar(c)) { if (cursor.par() == cursor.par() && cursor.pos() <= beginningOfMainBody(bview->buffer(), cursor.par())) { charInserted(); return; } /* No newline at first position * of a paragraph or behind labels. * TeX does not allow that. */ if (cursor.pos() < cursor.par()->size() && cursor.par()->isLineSeparator(cursor.pos())) // newline always after a blank! cursorRight(bview); cursor.row()->fill(-1); // to force a new break } // the display inset stuff if (cursor.row()->par()->getChar(cursor.row()->pos()) == Paragraph::META_INSET && cursor.row()->par()->getInset(cursor.row()->pos()) && (cursor.row()->par()->getInset(cursor.row()->pos())->display() || cursor.row()->par()->getInset(cursor.row()->pos())->needFullRow())) cursor.row()->fill(-1); // to force a new break // get the cursor row fist Row * row = cursor.row(); int y = cursor.y() - row->baseline(); if (c != Paragraph::META_INSET) /* Here case LyXText::InsertInset * already insertet the character */ cursor.par()->insertChar(cursor.pos(), c); setCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont); if (!jumped_over_space) { // refresh the positions Row * tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() + 1); } } // Is there a break one row above if ((cursor.par()->isLineSeparator(cursor.pos()) || cursor.par()->isNewline(cursor.pos()) || cursor.row()->fill() == -1) && row->previous() && row->previous()->par() == row->par()) { Paragraph::size_type z = nextBreakPoint(bview, row->previous(), workWidth(bview)); if (z >= row->pos()) { row->pos(z + 1); // set the dimensions of the row above row->previous()->fill(fill(bview, row->previous(), workWidth(bview))); setHeightOfRow(bview, row->previous()); y -= row->previous()->height(); refresh_y = y; refresh_row = row->previous(); status(bview, LyXText::NEED_MORE_REFRESH); breakAgainOneRow(bview, row); current_font = rawtmpfont; real_current_font = realtmpfont; setCursor(bview, cursor.par(), cursor.pos() + 1, false, cursor.boundary()); // cursor MUST be in row now. if (row->next() && row->next()->par() == row->par()) need_break_row = row->next(); else need_break_row = 0; // check, wether the last characters font has changed. if (cursor.pos() && cursor.pos() == cursor.par()->size() && rawparfont != rawtmpfont) redoHeightOfParagraph(bview, cursor); charInserted(); return; } } // recalculate the fill of the row if (row->fill() >= 0) /* needed because a newline * will set fill to -1. Otherwise * we would not get a rebreak! */ row->fill(fill(bview, row, workWidth(bview))); if (row->fill() < 0) { refresh_y = y; refresh_row = row; refresh_x = cursor.x(); refresh_pos = cursor.pos(); status(bview, LyXText::NEED_MORE_REFRESH); breakAgainOneRow(bview, row); // will the cursor be in another row now? if (rowLast(row) <= cursor.pos() + 1 && row->next()) { if (row->next() && row->next()->par() == row->par()) // this should always be true row = row->next(); breakAgainOneRow(bview, row); } current_font = rawtmpfont; real_current_font = realtmpfont; setCursor(bview, cursor.par(), cursor.pos() + 1, false, cursor.boundary()); if (isBoundary(bview->buffer(), cursor.par(), cursor.pos()) != cursor.boundary()) setCursor(bview, cursor.par(), cursor.pos(), false, !cursor.boundary()); if (row->next() && row->next()->par() == row->par()) need_break_row = row->next(); else need_break_row = 0; } else { refresh_y = y; refresh_x = cursor.x(); refresh_row = row; refresh_pos = cursor.pos(); int const tmpheight = row->height(); setHeightOfRow(bview, row); if (tmpheight == row->height()) status(bview, LyXText::NEED_VERY_LITTLE_REFRESH); else status(bview, LyXText::NEED_MORE_REFRESH); current_font = rawtmpfont; real_current_font = realtmpfont; setCursor(bview, cursor.par(), cursor.pos() + 1, false, cursor.boundary()); } // check, wether the last characters font has changed. if (cursor.pos() && cursor.pos() == cursor.par()->size() && rawparfont != rawtmpfont) { redoHeightOfParagraph(bview, cursor); } else { // now the special right address boxes if (textclasslist.Style(bview->buffer()->params.textclass, cursor.par()->getLayout()).margintype == MARGIN_RIGHT_ADDRESS_BOX) { redoDrawingOfParagraph(bview, cursor); } } charInserted(); } void LyXText::charInserted() { // Here we could call FinishUndo for every 20 characters inserted. // This is from my experience how emacs does it. static unsigned int counter; if (counter < 20) { ++counter; } else { finishUndo(); counter = 0; } } void LyXText::prepareToPrint(BufferView * bview, Row * row, float & x, float & fill_separator, float & fill_hfill, float & fill_label_hfill, bool bidi) const { float nlh; float ns; float w = row->fill(); fill_hfill = 0; fill_label_hfill = 0; fill_separator = 0; fill_label_hfill = 0; bool const is_rtl = row->par()->isRightToLeftPar(bview->buffer()->params); if (is_rtl) { x = (workWidth(bview) > 0) ? rightMargin(bview->buffer(), row) : 0; } else x = (workWidth(bview) > 0) ? leftMargin(bview, row) : 0; // is there a manual margin with a manual label if (textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()).margintype == MARGIN_MANUAL && textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()).labeltype == LABEL_MANUAL) { /* one more since labels are left aligned */ nlh = numberOfLabelHfills(bview->buffer(), row) + 1; if (nlh && !row->par()->getLabelWidthString().empty()) { fill_label_hfill = labelFill(bview, row) / nlh; } } // are there any hfills in the row? float const nh = numberOfHfills(bview->buffer(), row); if (nh) fill_hfill = w / nh; else { // is it block, flushleft or flushright? // set x how you need it int align; if (row->par()->params().align() == LYX_ALIGN_LAYOUT) align = textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()).align; else align = row->par()->params().align(); // center displayed insets Inset * inset; if (row->par()->getChar(row->pos()) == Paragraph::META_INSET && (inset=row->par()->getInset(row->pos())) && (inset->display())) // || (inset->scroll() < 0))) align = (inset->lyxCode() == Inset::MATHMACRO_CODE) ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER; switch (align) { case LYX_ALIGN_BLOCK: ns = numberOfSeparators(bview->buffer(), row); if (ns && row->next() && row->next()->par() == row->par() && !(row->next()->par()->isNewline(row->next()->pos() - 1)) && !(row->next()->par()->getChar(row->next()->pos()) == Paragraph::META_INSET && row->next()->par()->getInset(row->next()->pos()) && row->next()->par()->getInset(row->next()->pos())->display()) ) fill_separator = w / ns; else if (is_rtl) x += w; break; case LYX_ALIGN_RIGHT: x += w; break; case LYX_ALIGN_CENTER: x += w / 2; break; } } if (!bidi) return; computeBidiTables(bview->buffer(), row); if (is_rtl) { Paragraph::size_type main_body = beginningOfMainBody(bview->buffer(), row->par()); Paragraph::size_type last = rowLast(row); if (main_body > 0 && (main_body-1 > last || !row->par()->isLineSeparator(main_body-1))) { LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()); x += lyxfont::width(layout.labelsep, getFont(bview->buffer(), row->par(), -2)); if (main_body-1 <= last) x += fill_label_hfill; } } } /* important for the screen */ /* the cursor set functions have a special mechanism. When they * realize, that you left an empty paragraph, they will delete it. * They also delete the corresponding row */ void LyXText::cursorRightOneWord(BufferView * bview) const { // treat floats, HFills and Insets as words LyXCursor tmpcursor = cursor; // CHECK See comment on top of text.C if (tmpcursor.pos() == tmpcursor.par()->size() && tmpcursor.par()->next()) { tmpcursor.par(tmpcursor.par()->next()); tmpcursor.pos(0); } else { int steps = 0; // Skip through initial nonword stuff. while (tmpcursor.pos() < tmpcursor.par()->size() && ! tmpcursor.par()->isWord(tmpcursor.pos())) { // printf("Current pos1 %d", tmpcursor.pos()) ; tmpcursor.pos(tmpcursor.pos() + 1); ++steps; } // Advance through word. while (tmpcursor.pos() < tmpcursor.par()->size() && tmpcursor.par()->isWord( tmpcursor.pos())) { // printf("Current pos2 %d", tmpcursor.pos()) ; tmpcursor.pos(tmpcursor.pos() + 1); ++steps; } } setCursor(bview, tmpcursor.par(), tmpcursor.pos()); } void LyXText::cursorTab(BufferView * bview) const { LyXCursor tmpcursor = cursor; while (tmpcursor.pos() < tmpcursor.par()->size() && !tmpcursor.par()->isNewline(tmpcursor.pos())) tmpcursor.pos(tmpcursor.pos() + 1); if (tmpcursor.pos() == tmpcursor.par()->size()){ if (tmpcursor.par()->next()) { tmpcursor.par(tmpcursor.par()->next()); tmpcursor.pos(0); } } else tmpcursor.pos(tmpcursor.pos() + 1); setCursor(bview, tmpcursor.par(), tmpcursor.pos()); } /* -------> Skip initial whitespace at end of word and move cursor to *start* of prior word, not to end of next prior word. */ void LyXText::cursorLeftOneWord(BufferView * bview) const { LyXCursor tmpcursor = cursor; cursorLeftOneWord(tmpcursor); setCursor(bview, tmpcursor.par(), tmpcursor.pos()); } void LyXText::cursorLeftOneWord(LyXCursor & cur) const { // treat HFills, floats and Insets as words cur = cursor; while (cur.pos() && (cur.par()->isSeparator(cur.pos() - 1) || cur.par()->isKomma(cur.pos() - 1)) && !(cur.par()->isHfill(cur.pos() - 1) || cur.par()->isInset(cur.pos() - 1))) cur.pos(cur.pos() - 1); if (cur.pos() && (cur.par()->isInset(cur.pos() - 1) || cur.par()->isHfill(cur.pos() - 1))) { cur.pos(cur.pos() - 1); } else if (!cur.pos()) { if (cur.par()->previous()){ cur.par(cur.par()->previous()); cur.pos(cur.par()->size()); } } else { // Here, cur != 0 while (cur.pos() > 0 && cur.par()->isWord(cur.pos()-1) ) cur.pos(cur.pos() - 1); } } /* -------> Select current word. This depends on behaviour of CursorLeftOneWord(), so it is patched as well. */ void LyXText::getWord(LyXCursor & from, LyXCursor & to, word_location const loc) const { // first put the cursor where we wana start to select the word from = cursor; switch(loc) { case WHOLE_WORD_STRICT: if (cursor.pos() == 0 || cursor.pos() == cursor.par()->size() || cursor.par()->isSeparator(cursor.pos()) || cursor.par()->isKomma(cursor.pos()) || cursor.par()->isSeparator(cursor.pos() -1) || cursor.par()->isKomma(cursor.pos() -1)) { to = from; return; } // no break here, we go to the next case WHOLE_WORD: // Move cursor to the beginning, when not already there. if (from.pos() && !from.par()->isSeparator(from.pos() - 1) && !from.par()->isKomma(from.pos() - 1)) cursorLeftOneWord(from); break; case PREVIOUS_WORD: // always move the cursor to the beginning of previous word cursorLeftOneWord(from); break; case NEXT_WORD: lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet\n"; break; case PARTIAL_WORD: break; } to = from; while (to.pos() < to.par()->size() && !to.par()->isSeparator(to.pos()) && !to.par()->isKomma(to.pos()) && !to.par()->isHfill(to.pos()) ) { to.pos(to.pos() + 1); } } void LyXText::selectWord(BufferView * bview, word_location const loc) { LyXCursor from; LyXCursor to; getWord(from, to, loc); if (cursor != from) setCursor(bview, from.par(), from.pos()); if (to == from) return; selection.cursor = cursor; setCursor(bview, to.par(), to.pos() ); setSelection(bview); } /* -------> Select the word currently under the cursor when no selection is currently set */ bool LyXText::selectWordWhenUnderCursor(BufferView * bview, word_location const loc) { if (!selection.set()) { selectWord(bview, loc); return selection.set(); } return false; } // This function is only used by the spellchecker for NextWord(). // It doesn't handle LYX_ACCENTs and probably never will. string const LyXText::selectNextWord(BufferView * bview, float & value) const { if (the_locking_inset) { string str = the_locking_inset->selectNextWord(bview, value); if (!str.empty()) { value += float(cursor.y())/float(height); return str; } #warning Dekel please have a look on this one RTL? (Jug) // we have to go on checking so move cusor to the right if (cursor.pos() == cursor.par()->size()) { if (!cursor.par()->next()) return str; cursor.par(cursor.par()->next()); cursor.pos(0); } else cursor.pos(cursor.pos() + 1); } Paragraph * tmppar = cursor.par(); // If this is not the very first word, skip rest of // current word because we are probably in the middle // of a word if there is text here. if (cursor.pos() || cursor.par()->previous()) { while (cursor.pos() < cursor.par()->size() && cursor.par()->isLetter(cursor.pos())) cursor.pos(cursor.pos() + 1); } // Now, skip until we have real text (will jump paragraphs) while ((cursor.par()->size() > cursor.pos() && (!cursor.par()->isLetter(cursor.pos()) #ifndef NO_LATEX || cursor.par()->getFont(bview->buffer()->params, cursor.pos()) .latex() == LyXFont::ON #endif ) && (!cursor.par()->isInset(cursor.pos()) || !cursor.par()->getInset(cursor.pos())->isTextInset())) || (cursor.par()->size() == cursor.pos() && cursor.par()->next())) { if (cursor.pos() == cursor.par()->size()) { cursor.par(cursor.par()->next()); cursor.pos(0); } else cursor.pos(cursor.pos() + 1); } // now check if we hit an inset so it has to be a inset containing text! if (cursor.pos() < cursor.par()->size() && cursor.par()->isInset(cursor.pos())) { // lock the inset! cursor.par()->getInset(cursor.pos())->edit(bview); // now call us again to do the above trick // but obviously we have to start from down below ;) return bview->text->selectNextWord(bview, value); } // Update the value if we changed paragraphs if (cursor.par() != tmppar){ setCursor(bview, cursor.par(), cursor.pos()); value = float(cursor.y())/float(height); } // Start the selection from here selection.cursor = cursor; Inset * inset; // and find the end of the word // (optional hyphens are part of a word) while (cursor.pos() < cursor.par()->size() && (cursor.par()->isLetter(cursor.pos())) // assignment is intentional here || ((inset = getInset()) && inset->lyxCode() == Inset::SPECIALCHAR_CODE && static_cast(inset)->kind() == InsetSpecialChar::HYPHENATION )) cursor.pos(cursor.pos() + 1); // Finally, we copy the word to a string and return it string str; if (selection.cursor.pos() < cursor.pos()) { Paragraph::size_type i; for (i = selection.cursor.pos(); i < cursor.pos(); ++i) { if (cursor.par()->getChar(i) != Paragraph::META_INSET) str += cursor.par()->getChar(i); } } return str; } // This one is also only for the spellchecker void LyXText::selectSelectedWord(BufferView * bview) { if (the_locking_inset) { the_locking_inset->selectSelectedWord(bview); return; } // move cursor to the beginning setCursor(bview, selection.cursor.par(), selection.cursor.pos()); // set the sel cursor selection.cursor = cursor; Inset * inset; // now find the end of the word while (cursor.pos() < cursor.par()->size() && (cursor.par()->isLetter(cursor.pos()) // assignment is intentional here || ((inset = getInset()) && inset->lyxCode() == Inset::SPECIALCHAR_CODE && static_cast(inset)->kind() == InsetSpecialChar::HYPHENATION ))) cursor.pos(cursor.pos() + 1); setCursor(bview, cursor.par(), cursor.pos()); // finally set the selection setSelection(bview); } /* -------> Delete from cursor up to the end of the current or next word. */ void LyXText::deleteWordForward(BufferView * bview) { if (!cursor.par()->size()) cursorRight(bview); else { LyXCursor tmpcursor = cursor; tmpcursor.row(0); // ?? selection.set(true); // to avoid deletion cursorRightOneWord(bview); setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos()); selection.cursor = cursor; cursor = tmpcursor; setSelection(bview); /* -----> Great, CutSelection() gets rid of multiple spaces. */ cutSelection(bview); } } /* -------> Delete from cursor to start of current or prior word. */ void LyXText::deleteWordBackward(BufferView * bview) { if (!cursor.par()->size()) cursorLeft(bview); else { LyXCursor tmpcursor = cursor; tmpcursor.row(0); // ?? selection.set(true); // to avoid deletion cursorLeftOneWord(bview); setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos()); selection.cursor = cursor; cursor = tmpcursor; setSelection(bview); cutSelection(bview); } } /* -------> Kill to end of line. */ void LyXText::deleteLineForward(BufferView * bview) { if (!cursor.par()->size()) // Paragraph is empty, so we just go to the right cursorRight(bview); else { LyXCursor tmpcursor = cursor; // We can't store the row over a regular setCursor // so we set it to 0 and reset it afterwards. tmpcursor.row(0); // ?? selection.set(true); // to avoid deletion cursorEnd(bview); setCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos()); selection.cursor = cursor; cursor = tmpcursor; setSelection(bview); // What is this test for ??? (JMarc) if (!selection.set()) { deleteWordForward(bview); } else { cutSelection(bview); } } } // Change the case of a word at cursor position. // This function directly manipulates Paragraph::text because there // is no Paragraph::SetChar currently. I did what I could to ensure // that it is correct. I guess part of it should be moved to // Paragraph, but it will have to change for 1.1 anyway. At least // it does not access outside of the allocated array as the older // version did. (JMarc) void LyXText::changeCase(BufferView * bview, LyXText::TextCase action) { LyXCursor from; LyXCursor to; if (selection.set()) { from = selection.start; to = selection.end; } else { getWord(from, to, PARTIAL_WORD); setCursor(bview, to.par(), to.pos() + 1); } changeRegionCase(bview, from, to, action); } void LyXText::changeRegionCase(BufferView * bview, LyXCursor const & from, LyXCursor const & to, LyXText::TextCase action) { lyx::Assert(from <= to); setUndo(bview, Undo::FINISH, from.par(), to.par()->next()); Paragraph::size_type pos = from.pos(); Paragraph * par = from.par(); while (par && (pos != to.pos() || par != to.par())) { unsigned char c = par->getChar(pos); if (!IsInsetChar(c) && !IsHfillChar(c)) { switch (action) { case text_lowercase: c = tolower(c); break; case text_capitalization: c = toupper(c); action = text_lowercase; break; case text_uppercase: c = toupper(c); break; } } par->setChar(pos, c); checkParagraph(bview, par, pos); ++pos; if (pos == par->size()) { par = par->next(); pos = 0; } } if (to.row() != from.row()) { refresh_y = from.y() - from.row()->baseline(); refresh_row = from.row(); status(bview, LyXText::NEED_MORE_REFRESH); } } void LyXText::transposeChars(BufferView & bview) { Paragraph * tmppar = cursor.par(); setUndo(&bview, Undo::FINISH, tmppar, tmppar->next()); Paragraph::size_type tmppos = cursor.pos(); // First decide if it is possible to transpose at all // We are at the beginning of a paragraph. if (tmppos == 0) return; // We are at the end of a paragraph. if (tmppos == tmppar->size() - 1) return; unsigned char c1 = tmppar->getChar(tmppos); unsigned char c2 = tmppar->getChar(tmppos - 1); if (c1 != Paragraph::META_INSET && c2 != Paragraph::META_INSET) { tmppar->setChar(tmppos, c2); tmppar->setChar(tmppos - 1, c1); } // We should have an implementation that handles insets // as well, but that will have to come later. (Lgb) checkParagraph(const_cast(&bview), tmppar, tmppos); } void LyXText::Delete(BufferView * bview) { // this is a very easy implementation LyXCursor old_cursor = cursor; int const old_cur_par_id = old_cursor.par()->id(); int const old_cur_par_prev_id = old_cursor.par()->previous() ? old_cursor.par()->previous()->id() : 0; // just move to the right cursorRight(bview); // CHECK Look at the comment here. // This check is not very good... // The cursorRightIntern calls DeleteEmptyParagrapgMechanism // and that can very well delete the par or par->previous in // old_cursor. Will a solution where we compare paragraph id's //work better? if ((cursor.par()->previous() ? cursor.par()->previous()->id() : 0) == old_cur_par_prev_id && cursor.par()->id() != old_cur_par_id) return; // delete-empty-paragraph-mechanism has done it // if you had success make a backspace if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) { LyXCursor tmpcursor = cursor; cursor = old_cursor; // to make sure undo gets the right cursor position setUndo(bview, Undo::DELETE, cursor.par(), cursor.par()->next()); cursor = tmpcursor; backspace(bview); } } void LyXText::backspace(BufferView * bview) { // Get the font that is used to calculate the baselineskip Paragraph::size_type lastpos = cursor.par()->size(); LyXFont rawparfont = cursor.par()->getFontSettings(bview->buffer()->params, lastpos - 1); if (cursor.pos() == 0) { // The cursor is at the beginning of a paragraph, // so the the backspace will collapse two paragraphs into one. // we may paste some paragraphs // is it an empty paragraph? if ((lastpos == 0 || (lastpos == 1 && cursor.par()->isSeparator(0)))) { // This is an empty paragraph and we delete it just by moving the cursor one step // left and let the DeleteEmptyParagraphMechanism handle the actual deletion // of the paragraph. if (cursor.par()->previous()) { Paragraph * tmppar = cursor.par()->previous(); if (cursor.par()->getLayout() == tmppar->getLayout() && cursor.par()->getAlign() == tmppar->getAlign()) { // Inherit bottom DTD from the paragraph below. // (the one we are deleting) tmppar->params().lineBottom(cursor.par()->params().lineBottom()); tmppar->params().spaceBottom(cursor.par()->params().spaceBottom()); tmppar->params().pagebreakBottom(cursor.par()->params().pagebreakBottom()); } cursorLeft(bview); // the layout things can change the height of a row ! int const tmpheight = cursor.row()->height(); setHeightOfRow(bview, cursor.row()); if (cursor.row()->height() != tmpheight) { refresh_y = cursor.y() - cursor.row()->baseline(); refresh_row = cursor.row(); status(bview, LyXText::NEED_MORE_REFRESH); } return; } } if (cursor.par()->previous()) { setUndo(bview, Undo::DELETE, cursor.par()->previous(), cursor.par()->next()); } Paragraph * tmppar = cursor.par(); Row * tmprow = cursor.row(); // We used to do cursorLeftIntern() here, but it is // not a good idea since it triggers the auto-delete // mechanism. So we do a cursorLeftIntern()-lite, // without the dreaded mechanism. (JMarc) if (cursor.par()->previous()) { // steps into the above paragraph. setCursorIntern(bview, cursor.par()->previous(), cursor.par()->previous()->size(), false); } /* Pasting is not allowed, if the paragraphs have different layout. I think it is a real bug of all other word processors to allow it. It confuses the user. Even so with a footnote paragraph and a non-footnote paragraph. I will not allow pasting in this case, because the user would be confused if the footnote behaves different wether it is open or closed. Correction: Pasting is always allowed with standard-layout */ if (cursor.par() != tmppar && (cursor.par()->getLayout() == tmppar->getLayout() || tmppar->getLayout() == 0 /*standard*/) && cursor.par()->getAlign() == tmppar->getAlign()) { removeParagraph(tmprow); removeRow(tmprow); cursor.par()->pasteParagraph(bview->buffer()->params); if (!cursor.pos() || !cursor.par()->isSeparator(cursor.pos() - 1)) ; //cursor.par()->insertChar(cursor.pos(), ' '); // strangely enough it seems that commenting out the line above removes // most or all of the segfaults. I will however also try to move the // two Remove... lines in front of the PasteParagraph too. else if (cursor.pos()) cursor.pos(cursor.pos() - 1); status(bview, LyXText::NEED_MORE_REFRESH); refresh_row = cursor.row(); refresh_y = cursor.y() - cursor.row()->baseline(); // remove the lost paragraph // This one is not safe, since the paragraph that the tmprow and the // following rows belong to has been deleted by the PasteParagraph // above. The question is... could this be moved in front of the // PasteParagraph? //RemoveParagraph(tmprow); //RemoveRow(tmprow); // This rebuilds the rows. appendParagraph(bview, cursor.row()); updateCounters(bview, cursor.row()); // the row may have changed, block, hfills etc. setCursor(bview, cursor.par(), cursor.pos(), false); } } else { /* this is the code for a normal backspace, not pasting * any paragraphs */ setUndo(bview, Undo::DELETE, cursor.par(), cursor.par()->next()); // We used to do cursorLeftIntern() here, but it is // not a good idea since it triggers the auto-delete // mechanism. So we do a cursorLeftIntern()-lite, // without the dreaded mechanism. (JMarc) setCursorIntern(bview, cursor.par(), cursor.pos()- 1, false, cursor.boundary()); // some insets are undeletable here if (cursor.par()->getChar(cursor.pos()) == Paragraph::META_INSET) { if (!cursor.par()->getInset(cursor.pos())->deletable()) return; // force complete redo when erasing display insets // this is a cruel method but safe..... Matthias if (cursor.par()->getInset(cursor.pos())->display() || cursor.par()->getInset(cursor.pos())->needFullRow()) { cursor.par()->erase(cursor.pos()); redoParagraph(bview); return; } } Row * row = cursor.row(); int y = cursor.y() - row->baseline(); Paragraph::size_type z; /* remember that a space at the end of a row doesnt count * when calculating the fill */ if (cursor.pos() < rowLast(row) || !cursor.par()->isLineSeparator(cursor.pos())) { row->fill(row->fill() + singleWidth(bview, cursor.par(), cursor.pos())); } /* some special code when deleting a newline. This is similar * to the behavior when pasting paragraphs */ if (cursor.pos() && cursor.par()->isNewline(cursor.pos())) { cursor.par()->erase(cursor.pos()); // refresh the positions Row * tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() - 1); } if (cursor.par()->isLineSeparator(cursor.pos() - 1)) cursor.pos(cursor.pos() - 1); if (cursor.pos() < cursor.par()->size() && !cursor.par()->isSeparator(cursor.pos())) { cursor.par()->insertChar(cursor.pos(), ' '); setCharFont(bview->buffer(), cursor.par(), cursor.pos(), current_font); // refresh the positions tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() + 1); } } } else { cursor.par()->erase(cursor.pos()); // refresh the positions Row * tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() - 1); } // delete newlines at the beginning of paragraphs while (cursor.par()->size() && cursor.par()->isNewline(cursor.pos()) && cursor.pos() == beginningOfMainBody(bview->buffer(), cursor.par())) { cursor.par()->erase(cursor.pos()); // refresh the positions tmprow = row; while (tmprow->next() && tmprow->next()->par() == row->par()) { tmprow = tmprow->next(); tmprow->pos(tmprow->pos() - 1); } } } // is there a break one row above if (row->previous() && row->previous()->par() == row->par()) { z = nextBreakPoint(bview, row->previous(), workWidth(bview)); if (z >= row->pos()) { row->pos(z + 1); Row * tmprow = row->previous(); // maybe the current row is now empty if (row->pos() >= row->par()->size()) { // remove it removeRow(row); need_break_row = 0; } else { breakAgainOneRow(bview, row); if (row->next() && row->next()->par() == row->par()) need_break_row = row->next(); else need_break_row = 0; } // set the dimensions of the row above y -= tmprow->height(); tmprow->fill(fill(bview, tmprow, workWidth(bview))); setHeightOfRow(bview, tmprow); refresh_y = y; refresh_row = tmprow; status(bview, LyXText::NEED_MORE_REFRESH); setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary()); //current_font = rawtmpfont; //real_current_font = realtmpfont; // check, whether the last character's font has changed. if (rawparfont != cursor.par()->getFontSettings(bview->buffer()->params, cursor.par()->size() - 1)) redoHeightOfParagraph(bview, cursor); return; } } // break the cursor row again if (row->next() && row->next()->par() == row->par() && (rowLast(row) == row->par()->size() - 1 || nextBreakPoint(bview, row, workWidth(bview)) != rowLast(row))) { /* it can happen that a paragraph loses one row * without a real breakup. This is when a word * is to long to be broken. Well, I don t care this * hack ;-) */ if (rowLast(row) == row->par()->size() - 1) removeRow(row->next()); refresh_y = y; refresh_row = row; status(bview, LyXText::NEED_MORE_REFRESH); breakAgainOneRow(bview, row); // will the cursor be in another row now? if (row->next() && row->next()->par() == row->par() && rowLast(row) <= cursor.pos()) { row = row->next(); breakAgainOneRow(bview, row); } setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary()); if (row->next() && row->next()->par() == row->par()) need_break_row = row->next(); else need_break_row = 0; } else { // set the dimensions of the row row->fill(fill(bview, row, workWidth(bview))); int const tmpheight = row->height(); setHeightOfRow(bview, row); if (tmpheight == row->height()) status(bview, LyXText::NEED_VERY_LITTLE_REFRESH); else status(bview, LyXText::NEED_MORE_REFRESH); refresh_y = y; refresh_row = row; setCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary()); } } // current_font = rawtmpfont; // real_current_font = realtmpfont; if (isBoundary(bview->buffer(), cursor.par(), cursor.pos()) != cursor.boundary()) setCursor(bview, cursor.par(), cursor.pos(), false, !cursor.boundary()); lastpos = cursor.par()->size(); if (cursor.pos() == lastpos) setCurrentFont(bview); // check, whether the last characters font has changed. if (rawparfont != cursor.par()->getFontSettings(bview->buffer()->params, lastpos - 1)) { redoHeightOfParagraph(bview, cursor); } else { // now the special right address boxes if (textclasslist.Style(bview->buffer()->params.textclass, cursor.par()->getLayout()).margintype == MARGIN_RIGHT_ADDRESS_BOX) { redoDrawingOfParagraph(bview, cursor); } } } void LyXText::getVisibleRow(BufferView * bview, int y_offset, int x_offset, Row * row_ptr, int y, bool cleared) { // returns a printed row Painter & pain = bview->painter(); bool const is_rtl = row_ptr->par()->isRightToLeftPar(bview->buffer()->params); Paragraph::size_type const last = rowLastPrintable(row_ptr); Paragraph::size_type vpos; Paragraph::size_type pos; float tmpx; LyXFont font(LyXFont::ALL_SANE); int maxdesc; if (row_ptr->height() <= 0) { lyxerr << "LYX_ERROR: row.height: " << row_ptr->height() << endl; return; } float x; float fill_separator; float fill_hfill; float fill_label_hfill; prepareToPrint(bview, row_ptr, x, fill_separator, fill_hfill, fill_label_hfill); if (inset_owner && (x < 0)) x = 0; x += x_offset; // clear the area where we want to paint/print int const ww = bview->workWidth(); bool clear_area = true; Inset * inset = 0; if (!bview->screen()->forceClear() && last == row_ptr->pos() && row_ptr->par()->getChar(row_ptr->pos()) == Paragraph::META_INSET && (inset = row_ptr->par()->getInset(row_ptr->pos()))) { clear_area = inset->doClearArea(); } // we don't need to clear it's already done!!! if (cleared) { clear_area = true; } else if (clear_area) { #ifdef WITH_WARNINGS #warning Should be fixed with a lyxinset::clear_width(bv, font) function! (Jug) #warning Should we not fix this in the Painter, please have a look Lars! (Jug) #endif int const y = y_offset < 0 ? 0 : y_offset; int const h = y_offset < 0 ? row_ptr->height() + y_offset : row_ptr->height(); int const w = inset_owner ? inset_owner->width(bview, font) - 2 : ww; int const x = x_offset; pain.fillRectangle(x, y, w, h, backgroundColor()); } else if (inset != 0) { int h = row_ptr->baseline() - inset->ascent(bview, font); // first clear the whole row above the inset! if (h > 0) { #if 0 int const w = (inset_owner ? inset_owner->width(bview, font) : ww); #endif pain.fillRectangle(x_offset, y_offset, ww, h, backgroundColor()); } h += inset->ascent(bview, font) + inset->descent(bview, font); // clear the space below the inset! if ((row_ptr->height() - h) > 0) { #if 0 int const w = (inset_owner ? inset_owner->width(bview, font) : ww); #endif pain.fillRectangle(x_offset, y_offset + h, ww, row_ptr->height() - h, backgroundColor()); } // clear the space behind the inset, if needed if (!inset_owner && !inset->display() && !inset->needFullRow()) { int const w = inset->width(bview, font) + int(x); pain.fillRectangle(w, y_offset, ww - w, row_ptr->height(), backgroundColor()); } } if (selection.set()) { int const w = (inset_owner ? inset_owner->width(bview, font) : ww); // selection code if (bidi_same_direction) { if (selection.start.row() == row_ptr && selection.end.row() == row_ptr) { if (selection.start.x() < selection.end.x()) pain.fillRectangle(x_offset + selection.start.x(), y_offset, selection.end.x() - selection.start.x(), row_ptr->height(), LColor::selection); else pain.fillRectangle(x_offset + selection.end.x(), y_offset, selection.start.x() - selection.end.x(), row_ptr->height(), LColor::selection); } else if (selection.start.row() == row_ptr) { if (is_rtl) pain.fillRectangle(x_offset, y_offset, selection.start.x(), row_ptr->height(), LColor::selection); else pain.fillRectangle(x_offset + selection.start.x(), y_offset, w - selection.start.x(), row_ptr->height(), LColor::selection); } else if (selection.end.row() == row_ptr) { if (is_rtl) pain.fillRectangle(x_offset + selection.end.x(), y_offset, w - selection.end.x(), row_ptr->height(), LColor::selection); else pain.fillRectangle(x_offset, y_offset, selection.end.x(), row_ptr->height(), LColor::selection); } else if (y > selection.start.y() && y < selection.end.y()) { pain.fillRectangle(x_offset, y_offset, w, row_ptr->height(), LColor::selection); } } else if (selection.start.row() != row_ptr && selection.end.row() != row_ptr && y > selection.start.y() && y < selection.end.y()) { pain.fillRectangle(x_offset, y_offset, w, row_ptr->height(), LColor::selection); } else if (selection.start.row() == row_ptr || selection.end.row() == row_ptr) { float tmpx = x; if ((selection.start.row() != row_ptr && !is_rtl) || (selection.end.row() != row_ptr && is_rtl)) pain.fillRectangle(x_offset, y_offset, int(tmpx), row_ptr->height(), LColor::selection); Paragraph::size_type main_body = beginningOfMainBody(bview->buffer(), row_ptr->par()); for (vpos = row_ptr->pos(); vpos <= last; ++vpos) { pos = vis2log(vpos); float const old_tmpx = tmpx; if (main_body > 0 && pos == main_body-1) { tmpx += fill_label_hfill + lyxfont::width(textclasslist.Style(bview->buffer()->params.textclass, row_ptr->par()->getLayout()).labelsep, getFont(bview->buffer(),row_ptr->par(), -2)); if (row_ptr->par()->isLineSeparator(main_body-1)) tmpx -= singleWidth(bview, row_ptr->par(), main_body-1); } if (hfillExpansion(bview->buffer(), row_ptr, pos)) { tmpx += singleWidth(bview, row_ptr->par(), pos); if (pos >= main_body) tmpx += fill_hfill; else tmpx += fill_label_hfill; } else if (row_ptr->par()->isSeparator(pos)) { tmpx += singleWidth(bview, row_ptr->par(), pos); if (pos >= main_body) tmpx += fill_separator; } else tmpx += singleWidth(bview, row_ptr->par(), pos); if ((selection.start.row() != row_ptr || selection.start.pos() <= pos) && (selection.end.row() != row_ptr || pos < selection.end.pos()) ) // Here we do not use x_offset as x_offset was // added to x. pain.fillRectangle(int(old_tmpx), y_offset, int(tmpx - old_tmpx + 1), row_ptr->height(), LColor::selection); } if ((selection.start.row() != row_ptr && is_rtl) || (selection.end.row() != row_ptr && !is_rtl) ) pain.fillRectangle(x_offset + int(tmpx), y_offset, int(ww - tmpx), row_ptr->height(), LColor::selection); } } int box_x = 0; // Draw appendix lines Paragraph * firstpar = row_ptr->par(); if (firstpar->params().appendix()) { pain.line(1, y_offset, 1, y_offset + row_ptr->height(), LColor::appendixline); pain.line(ww - 2, y_offset, ww - 2, y_offset + row_ptr->height(), LColor::appendixline); } // Draw depth lines Paragraph::depth_type const depth = firstpar->getDepth(); if (depth > 0) { Paragraph::depth_type next_depth = 0; Paragraph::depth_type prev_depth = 0; if (row_ptr->next()) next_depth = row_ptr->next()->par()->getDepth(); if (row_ptr->previous()) prev_depth = row_ptr->previous()->par()->getDepth(); for (Paragraph::depth_type i = 1; i <= depth; ++i) { int const line_x = (LYX_PAPER_MARGIN / 5) * i + box_x + x_offset; pain.line(line_x, y_offset, line_x, y_offset + row_ptr->height() - 1 - (i - next_depth - 1) * 3, LColor::depthbar); if (i > prev_depth) pain.fillRectangle(line_x, y_offset, LYX_PAPER_MARGIN / 5, 2, LColor::depthbar); if (i > next_depth) pain.fillRectangle(line_x, y_offset + row_ptr->height() - 2 - (i - next_depth - 1) * 3, LYX_PAPER_MARGIN / 5, 2, LColor::depthbar); } } LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass, row_ptr->par()->getLayout()); int y_top = 0; int y_bottom = row_ptr->height(); // is it a first row? if (!row_ptr->pos() && (row_ptr->par() == firstpar)) { // start of appendix? if (row_ptr->par()->params().startOfAppendix()) { pain.line(1, y_offset, ww - 2, y_offset, LColor::appendixline); } // think about the margins if (!row_ptr->previous() && bv_owner) y_top += LYX_PAPER_MARGIN; // draw a top pagebreak if (row_ptr->par()->params().pagebreakTop()) { LyXFont pb_font; pb_font.setColor(LColor::pagebreak).decSize(); int w = 0; int a = 0; int d = 0; pain.line(0, y_offset + y_top + 2*defaultHeight(), ww, y_offset + y_top + 2 * defaultHeight(), LColor::pagebreak, Painter::line_onoffdash); lyxfont::rectText(_("Page Break (top)"), pb_font, w, a, d); pain.rectText((ww - w)/2, y_offset + y_top + 2 * defaultHeight() + d, _("Page Break (top)"), pb_font, backgroundColor(), backgroundColor()); y_top += 3 * defaultHeight(); } if (row_ptr->par()->params().spaceTop().kind() == VSpace::VFILL) { // draw a vfill top pain.line(0, y_offset + 2 + y_top, LYX_PAPER_MARGIN, y_offset + 2 + y_top, LColor::vfillline); pain.line(0, y_offset + y_top + 3 * defaultHeight(), LYX_PAPER_MARGIN, y_offset + y_top + 3 * defaultHeight(), LColor::vfillline); pain.line(LYX_PAPER_MARGIN / 2, y_offset + 2 + y_top, LYX_PAPER_MARGIN / 2, y_offset + y_top + 3 * defaultHeight(), LColor::vfillline); y_top += 3 * defaultHeight(); } // think about user added space y_top += int(row_ptr->par()->params().spaceTop().inPixels(bview)); // think about the parskip // some parskips VERY EASY IMPLEMENTATION if (bview->buffer()->params.paragraph_separation == BufferParams::PARSEP_SKIP) { if (layout.latextype == LATEX_PARAGRAPH && firstpar->getDepth() == 0 && firstpar->previous()) y_top += bview->buffer()->params.getDefSkip().inPixels(bview); else if (firstpar->previous() && textclasslist.Style(bview->buffer()->params.textclass, firstpar->previous()->getLayout()).latextype == LATEX_PARAGRAPH && firstpar->previous()->getDepth() == 0) // is it right to use defskip here, too? (AS) y_top += bview->buffer()->params.getDefSkip().inPixels(bview); } if (row_ptr->par()->params().lineTop()) { // draw a top line y_top += lyxfont::ascent('x', getFont(bview->buffer(), row_ptr->par(), 0)); int const w = (inset_owner ? inset_owner->width(bview, font) : ww); int const xp = static_cast(inset_owner ? x : 0); pain.line(xp, y_offset + y_top, w, y_offset + y_top, LColor::topline, Painter::line_solid, Painter::line_thick); y_top += lyxfont::ascent('x',getFont(bview->buffer(), row_ptr->par(), 0)); } // should we print a label? if (layout.labeltype >= LABEL_STATIC && (layout.labeltype != LABEL_STATIC || layout.latextype != LATEX_ENVIRONMENT || row_ptr->par()->isFirstInSequence())) { font = getFont(bview->buffer(), row_ptr->par(), -2); if (!row_ptr->par()->getLabelstring().empty()) { tmpx = x; string const tmpstring = row_ptr->par()->getLabelstring(); if (layout.labeltype == LABEL_COUNTER_CHAPTER) { if (bview->buffer()->params.secnumdepth >= 0) { // this is special code for // the chapter layout. This is // printed in an extra row // and has a pagebreak at // the top. float spacing_val = 1.0; if (!row_ptr->par()->params().spacing().isDefault()) { spacing_val = row_ptr->par()->params().spacing().getValue(); } else { spacing_val = bview->buffer()->params.spacing.getValue(); } maxdesc = int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val) + int(layout.parsep) * defaultHeight(); if (is_rtl) tmpx = ww - leftMargin(bview, row_ptr) - lyxfont::width(tmpstring, font); pain.text(int(tmpx), y_offset + row_ptr->baseline() - row_ptr->ascent_of_text() - maxdesc, tmpstring, font); } } else { if (is_rtl) { tmpx = ww - leftMargin(bview, row_ptr) + lyxfont::width(layout.labelsep, font); } else tmpx = x - lyxfont::width(layout.labelsep, font) - lyxfont::width(tmpstring, font); // draw it! pain.text(int(tmpx), y_offset + row_ptr->baseline(), tmpstring, font); } } // the labels at the top of an environment. // More or less for bibliography } else if (layout.labeltype == LABEL_TOP_ENVIRONMENT || layout.labeltype == LABEL_BIBLIO || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) { if (row_ptr->par()->isFirstInSequence()) { font = getFont(bview->buffer(), row_ptr->par(), -2); if (!row_ptr->par()->getLabelstring().empty()) { string const tmpstring = row_ptr->par()->getLabelstring(); float spacing_val = 1.0; if (!row_ptr->par()->params().spacing().isDefault()) { spacing_val = row_ptr->par()->params().spacing().getValue(); } else { spacing_val = bview->buffer()->params.spacing.getValue(); } maxdesc = int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val + (layout.labelbottomsep * defaultHeight())); tmpx = x; if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT){ tmpx = ( (is_rtl ? leftMargin(bview, row_ptr) : x) + ww - rightMargin(bview->buffer(), row_ptr) ) / 2; tmpx -= lyxfont::width(tmpstring, font) / 2; } else if (is_rtl) tmpx = ww - leftMargin(bview, row_ptr) - lyxfont::width(tmpstring, font); pain.text(int(tmpx), y_offset + row_ptr->baseline() - row_ptr->ascent_of_text() - maxdesc, tmpstring, font); } } } if (layout.labeltype == LABEL_BIBLIO && row_ptr->par()->bibkey) { font = getFont(bview->buffer(), row_ptr->par(), -1); if (is_rtl) tmpx = ww - leftMargin(bview, row_ptr) + lyxfont::width(layout.labelsep, font); else tmpx = x - lyxfont::width(layout.labelsep, font) - row_ptr->par()->bibkey->width(bview, font); row_ptr->par()->bibkey->draw(bview, font, y_offset + row_ptr->baseline(), tmpx, clear_area); } } // is it a last row? Paragraph * par = row_ptr->par(); if (row_ptr->par() == par && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par())) { // think about the margins if (!row_ptr->next() && bv_owner) y_bottom -= LYX_PAPER_MARGIN; // draw a bottom pagebreak if (firstpar->params().pagebreakBottom()) { LyXFont pb_font; pb_font.setColor(LColor::pagebreak).decSize(); int const y_place = y_offset + y_bottom - 2 * defaultHeight(); int w = 0; int a = 0; int d = 0; pain .line(0, y_place, ww, y_place, LColor::pagebreak, Painter::line_onoffdash); lyxfont::rectText(_("Page Break (bottom)"), pb_font, w, a, d); pain.rectText((ww - w) / 2, y_place + d, _("Page Break (bottom)"), pb_font, backgroundColor(), backgroundColor()); y_bottom -= 3 * defaultHeight(); } if (firstpar->params().spaceBottom().kind() == VSpace::VFILL) { // draw a vfill bottom int const y_place = y_offset + y_bottom - 3 * defaultHeight(); pain.line(0, y_place, LYX_PAPER_MARGIN, y_place, LColor::vfillline); pain.line(0, y_offset + y_bottom - 2, LYX_PAPER_MARGIN, y_offset + y_bottom - 2, LColor::vfillline); pain.line(LYX_PAPER_MARGIN / 2, y_place, LYX_PAPER_MARGIN / 2, y_offset + y_bottom - 2, LColor::vfillline); y_bottom -= 3 * defaultHeight(); } // think about user added space y_bottom -= int(firstpar->params().spaceBottom().inPixels(bview)); if (firstpar->params().lineBottom()) { // draw a bottom line y_bottom -= lyxfont::ascent('x', getFont(bview->buffer(), par, par->size() - 1)); int const w = (inset_owner ? inset_owner->width(bview, font) : ww); int const xp = static_cast(inset_owner ? x : 0); pain.line(xp, y_offset + y_bottom, w, y_offset + y_bottom, LColor::topline, Painter::line_solid, Painter::line_thick); y_bottom -= lyxfont::ascent('x', getFont(bview->buffer(), par, par->size() - 1)); } // draw an endlabel int const endlabel = row_ptr->par()->getEndLabel(bview->buffer()->params); switch (endlabel) { case END_LABEL_BOX: case END_LABEL_FILLED_BOX: { LyXFont const font = getFont(bview->buffer(), row_ptr->par(), last); int const size = int(0.75 * lyxfont::maxAscent(font)); int const y = (y_offset + row_ptr->baseline()) - size; int x = is_rtl ? LYX_PAPER_MARGIN : ww - LYX_PAPER_MARGIN - size; if (row_ptr->fill() <= size) x += (size - row_ptr->fill() + 1) * (is_rtl ? -1 : 1); if (endlabel == END_LABEL_BOX) { pain.line(x, y, x, y + size, LColor::eolmarker); pain.line(x + size, y, x + size , y + size, LColor::eolmarker); pain.line(x, y, x + size, y, LColor::eolmarker); pain.line(x, y + size, x + size, y + size, LColor::eolmarker); } else pain.fillRectangle(x, y, size, size, LColor::eolmarker); break; } case END_LABEL_STATIC: { LyXTextClass::LayoutList::size_type layout = row_ptr->par()->getLayout(); string const tmpstring = textclasslist. Style(bview->buffer()->params.textclass, layout).endlabelstring(); font = getFont(bview->buffer(), row_ptr->par(), -2); int const tmpx = is_rtl ? int(x) - lyxfont::width(tmpstring, font) : ww - rightMargin(bview->buffer(), row_ptr) - row_ptr->fill(); pain.text( tmpx, y_offset + row_ptr->baseline(), tmpstring, font); break; } case END_LABEL_NO_LABEL: break; } } // draw the text in the pixmap vpos = row_ptr->pos(); Paragraph::size_type main_body = beginningOfMainBody(bview->buffer(), row_ptr->par()); if (main_body > 0 && (main_body-1 > last || !row_ptr->par()->isLineSeparator(main_body - 1))) main_body = 0; while (vpos <= last) { pos = vis2log(vpos); if (main_body > 0 && pos == main_body - 1) { x += fill_label_hfill + lyxfont::width(layout.labelsep, getFont(bview->buffer(), row_ptr->par(), -2)) - singleWidth(bview, row_ptr->par(), main_body - 1); } if (row_ptr->par() ->isHfill(pos)) { x += 1; pain.line(int(x), y_offset + row_ptr->baseline() - defaultHeight() / 2, int(x), y_offset + row_ptr->baseline(), LColor::vfillline); if (hfillExpansion(bview->buffer(), row_ptr, pos)) { if (pos >= main_body) { pain.line(int(x), y_offset + row_ptr->baseline() - defaultHeight() / 4, int(x + fill_hfill), y_offset + row_ptr->baseline() - defaultHeight() / 4, LColor::vfillline, Painter::line_onoffdash); x += fill_hfill; } else { pain.line(int(x), y_offset + row_ptr->baseline() - defaultHeight() / 4, int(x + fill_label_hfill), y_offset + row_ptr->baseline() - defaultHeight() / 4, LColor::vfillline, Painter::line_onoffdash); x += fill_label_hfill; } pain.line(int(x), y_offset + row_ptr->baseline() - defaultHeight() / 2, int(x), y_offset + row_ptr->baseline(), LColor::vfillline); } x += 2; ++vpos; } else if (row_ptr->par()->isSeparator(pos)) { x += singleWidth(bview, row_ptr->par(), pos); if (pos >= main_body) x += fill_separator; ++vpos; } else draw(bview, row_ptr, vpos, y_offset, x, clear_area); } } int LyXText::defaultHeight() const { LyXFont font(LyXFont::ALL_SANE); return int(lyxfont::maxAscent(font) + lyxfont::maxDescent(font) * 1.5); } /* returns the column near the specified x-coordinate of the row * x is set to the real beginning of this column */ int LyXText::getColumnNearX(BufferView * bview, Row * row, int & x, bool & boundary) const { float tmpx = 0.0; float fill_separator; float fill_hfill; float fill_label_hfill; prepareToPrint(bview, row, tmpx, fill_separator, fill_hfill, fill_label_hfill); Paragraph::size_type vc = row->pos(); Paragraph::size_type last = rowLastPrintable(row); Paragraph::size_type c = 0; LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass, row->par()->getLayout()); bool left_side = false; Paragraph::size_type main_body = beginningOfMainBody(bview->buffer(), row->par()); float last_tmpx = tmpx; if (main_body > 0 && (main_body - 1 > last || !row->par()->isLineSeparator(main_body - 1))) main_body = 0; while (vc <= last && tmpx <= x) { c = vis2log(vc); last_tmpx = tmpx; if (main_body > 0 && c == main_body-1) { tmpx += fill_label_hfill + lyxfont::width(layout.labelsep, getFont(bview->buffer(), row->par(), -2)); if (row->par()->isLineSeparator(main_body - 1)) tmpx -= singleWidth(bview, row->par(), main_body-1); } if (hfillExpansion(bview->buffer(), row, c)) { x += singleWidth(bview, row->par(), c); if (c >= main_body) tmpx += fill_hfill; else tmpx += fill_label_hfill; } else if (row->par()->isSeparator(c)) { tmpx += singleWidth(bview, row->par(), c); if (c >= main_body) tmpx+= fill_separator; } else tmpx += singleWidth(bview, row->par(), c); ++vc; } if ((tmpx + last_tmpx) / 2 > x) { tmpx = last_tmpx; left_side = true; } if (vc > last + 1) // This shouldn't happen. vc = last + 1; boundary = false; bool const lastrow = lyxrc.rtl_support // This is not needed, but gives // some speedup if rtl_support=false && (!row->next() || row->next()->par() != row->par()); bool const rtl = (lastrow) ? row->par()->isRightToLeftPar(bview->buffer()->params) : false; // If lastrow is false, we don't need to compute // the value of rtl. if (row->pos() > last) // Row is empty? c = row->pos(); else if (lastrow && ( ( rtl && left_side && vc == row->pos() && x < tmpx - 5) || (!rtl && !left_side && vc == last + 1 && x > tmpx + 5) )) c = last + 1; else if (vc == row->pos()) { c = vis2log(vc); if (bidi_level(c) % 2 == 1) ++c; } else { c = vis2log(vc - 1); bool const rtl = (bidi_level(c) % 2 == 1); if (left_side == rtl) { ++c; boundary = isBoundary(bview->buffer(), row->par(), c); } } if (row->pos() <= last && c > last && row->par()->isNewline(last)) { if (bidi_level(last) % 2 == 0) tmpx -= singleWidth(bview, row->par(), last); else tmpx += singleWidth(bview, row->par(), last); c = last; } c -= row->pos(); x = int(tmpx); return c; } // returns pointer to a specified row Row * LyXText::getRow(Paragraph * par, Paragraph::size_type pos, int & y) const { if (!firstrow) return 0; Row * tmprow = firstrow; y = 0; // find the first row of the specified paragraph while (tmprow->next() && tmprow->par() != par) { y += tmprow->height(); tmprow = tmprow->next(); } // now find the wanted row while (tmprow->pos() < pos && tmprow->next() && tmprow->next()->par() == par && tmprow->next()->pos() <= pos) { y += tmprow->height(); tmprow = tmprow->next(); } return tmprow; }