/* This file is part of * ====================================================== * * LyX, The Document Processor * * Copyright 1995 Matthias Ettrich * Copyright 1995-2001 The LyX Team. * * ====================================================== */ #include #include "lyxtext.h" #include "lyxrow.h" #include "paragraph.h" #include "gettext.h" #include "bufferparams.h" #include "buffer.h" #include "debug.h" #include "intl.h" #include "lyxrc.h" #include "encoding.h" #include "frontends/LyXView.h" #include "frontends/Painter.h" #include "frontends/font_metrics.h" #include "frontends/screen.h" #include "frontends/WorkArea.h" #include "bufferview_funcs.h" #include "BufferView.h" #include "language.h" #include "ParagraphParameters.h" #include "undo_funcs.h" #include "WordLangTuple.h" #include "paragraph_funcs.h" #include "insets/insetbib.h" #include "insets/insettext.h" #include "support/textutils.h" #include "support/LAssert.h" #include "support/lstrings.h" #include using std::max; using std::min; using std::endl; using std::pair; using lyx::pos_type; namespace { /// top, right, bottom pixel margin int const PAPER_MARGIN = 20; /// margin for changebar int const CHANGEBAR_MARGIN = 10; /// left margin int const LEFT_MARGIN = PAPER_MARGIN + CHANGEBAR_MARGIN; } // 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::workWidth(BufferView * bview, Inset * inset) const { Paragraph * par = 0; pos_type pos = -1; par = inset->parOwner(); if (par) pos = par->getPositionOfInset(inset); if (!par || pos == -1) { lyxerr << "LyXText::workWidth: something is wrong," " fall back to the brute force method" << endl; Buffer::inset_iterator it = bview->buffer()->inset_iterator_begin(); Buffer::inset_iterator end = bview->buffer()->inset_iterator_end(); for (; it != end; ++it) { if (&(*it) == inset) { par = it.getPar(); pos = it.getPos(); break; } } } if (!par) { return workWidth(bview); } LyXLayout_ptr const & layout = par->layout(); if (layout->margintype != MARGIN_RIGHT_ADDRESS_BOX) { // Optimization here: in most cases, the real row is // not needed, but only the par/pos values. So we just // construct a dummy row for leftMargin. (JMarc) Row dummyrow; dummyrow.par(par); dummyrow.pos(pos); return workWidth(bview) - leftMargin(bview, &dummyrow); } else { int dummy_y; Row * row = getRow(par, pos, dummy_y); Row * frow = row; while (frow->previous() && frow->par() == frow->previous()->par()) frow = frow->previous(); unsigned int maxw = 0; while (frow->next() && frow->par() == frow->next()->par()) { if ((frow != row) && (maxw < frow->width())) maxw = frow->width(); frow = frow->next(); } if (maxw) return maxw; } return workWidth(bview); } 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, pos_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 (pos_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) && !Encodings::is_arabic_special(prev_char)) return Encodings::TransformChar(c, Encodings::FORM_MEDIAL); else return Encodings::TransformChar(c, Encodings::FORM_INITIAL); } else { if (Encodings::is_arabic(prev_char) && !Encodings::is_arabic_special(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, pos_type pos) const { char const c = par->getChar(pos); return singleWidth(bview, par, pos, c); } int LyXText::singleWidth(BufferView * bview, Paragraph * par, pos_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 font_metrics::width(c, font); } else if (IsHfillChar(c)) { // Because of the representation as vertical lines return 3; } else if (c == Paragraph::META_INSET) { Inset * tmpinset = par->getInset(pos); if (tmpinset) { #if 1 // this IS needed otherwise on initialitation we don't get the fill // of the row right (ONLY on initialization if we read a file!) // should be changed! (Jug 20011204) 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 font_metrics::width(c, font); } void LyXText::computeBidiTables(Buffer const * buf, Row * row) const { bidi_same_direction = true; if (!lyxrc.rtl_support) { bidi_start = -1; return; } Inset * inset = row->par()->inInset(); if (inset && inset->owner() && inset->owner()->lyxCode() == Inset::ERT_CODE) { bidi_start = -1; return; } bidi_start = row->pos(); bidi_end = row->lastPrintablePos(); if (bidi_start > bidi_end) { bidi_start = -1; return; } if (bidi_end + 2 - bidi_start > static_cast(log2vis_list.size())) { pos_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; pos_type stack[2]; bool const rtl_par = row->par()->isRightToLeftPar(buf->params); int level = 0; bool rtl = false; bool rtl0 = false; pos_type const main_body = row->par()->beginningOfMainBody(); for (pos_type lpos = bidi_start; lpos <= bidi_end; ++lpos) { bool is_space = row->par()->isLineSeparator(lpos); pos_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) { pos_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) { pos_type const old_lpos = stack[--level]; int delta = bidi_end - old_lpos; if (level % 2) delta = -delta; log2vis_list[old_lpos - bidi_start] += delta; } pos_type vpos = bidi_start - 1; for (pos_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, pos_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, pos_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::drawNewline(DrawRowParams & p, pos_type const pos) { // Draw end-of-line marker LyXFont const font = getFont(p.bv->buffer(), p.row->par(), pos); int const wid = font_metrics::width('n', font); int const asc = font_metrics::maxAscent(font); int const y = p.yo + p.row->baseline(); int xp[3]; int yp[3]; yp[0] = int(y - 0.875 * asc * 0.75); yp[1] = int(y - 0.500 * asc * 0.75); yp[2] = int(y - 0.125 * asc * 0.75); if (bidi_level(pos) % 2 == 0) { xp[0] = int(p.x + wid * 0.375); xp[1] = int(p.x); xp[2] = int(p.x + wid * 0.375); } else { xp[0] = int(p.x + wid * 0.625); xp[1] = int(p.x + wid); xp[2] = int(p.x + wid * 0.625); } p.pain->lines(xp, yp, 3, LColor::eolmarker); yp[0] = int(y - 0.500 * asc * 0.75); yp[1] = int(y - 0.500 * asc * 0.75); yp[2] = int(y - asc * 0.75); if (bidi_level(pos) % 2 == 0) { xp[0] = int(p.x); xp[1] = int(p.x + wid); xp[2] = int(p.x + wid); } else { xp[0] = int(p.x + wid); xp[1] = int(p.x); xp[2] = int(p.x); } p.pain->lines(xp, yp, 3, LColor::eolmarker); p.x += wid; } bool LyXText::drawInset(DrawRowParams & p, pos_type const pos) { Inset * inset = p.row->par()->getInset(pos); // FIXME: shouldn't happen if (!inset) { return true; } LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos); // we need this here as the row pointer may be illegal // at a later time (Jug20020502) Row * prev = p.row->previous(); inset->update(p.bv, font, false); inset->draw(p.bv, font, p.yo + p.row->baseline(), p.x, p.cleared); if (!need_break_row && !inset_owner && p.bv->text->status() == CHANGED_IN_DRAW) { if (prev && prev->par() == p.row->par()) { breakAgainOneRow(p.bv, prev); if (prev->next() != p.row) { // breakAgainOneRow() has removed p.row p.row = 0; // see what this breaks need_break_row = prev; } else { need_break_row = p.row; } } else if (!prev) { need_break_row = firstrow; } else { need_break_row = prev->next(); } setCursor(p.bv, cursor.par(), cursor.pos()); return false; } return true; } void LyXText::drawForeignMark(DrawRowParams & p, float const orig_x, LyXFont const & orig_font) { if (!lyxrc.mark_foreign_language) return; if (orig_font.language() == latex_language) return; if (orig_font.language() == p.bv->buffer()->params.language) return; int const y = p.yo + p.row->baseline() + 1; p.pain->line(int(orig_x), y, int(p.x), y, LColor::language); } void LyXText::drawHebrewComposeChar(DrawRowParams & p, pos_type & vpos) { pos_type pos = vis2log(vpos); string str; // first char char c = p.row->par()->getChar(pos); str += c; ++vpos; LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos); int const width = font_metrics::width(c, font); int dx = 0; for (pos_type i = pos-1; i >= 0; --i) { c = p.row->par()->getChar(i); if (!Encodings::IsComposeChar_hebrew(c)) { if (IsPrintableNonspace(c)) { int const width2 = singleWidth(p.bv, p.row->par(), i, c); // dalet / resh dx = (c == 'ø' || c == 'ã') ? width2 - width : (width2 - width) / 2; } break; } } // Draw nikud p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font); } void LyXText::drawArabicComposeChar(DrawRowParams & p, pos_type & vpos) { pos_type pos = vis2log(vpos); string str; // first char char c = p.row->par()->getChar(pos); c = transformChar(c, p.row->par(), pos); str +=c; ++vpos; LyXFont const & font = getFont(p.bv->buffer(), p.row->par(), pos); int const width = font_metrics::width(c, font); int dx = 0; for (pos_type i = pos-1; i >= 0; --i) { c = p.row->par()->getChar(i); if (!Encodings::IsComposeChar_arabic(c)) { if (IsPrintableNonspace(c)) { int const width2 = singleWidth(p.bv, p.row->par(), i, c); dx = (width2 - width) / 2; } break; } } // Draw nikud p.pain->text(int(p.x) + dx, p.yo + p.row->baseline(), str, font); } void LyXText::drawChars(DrawRowParams & p, pos_type & vpos, bool hebrew, bool arabic) { pos_type pos = vis2log(vpos); pos_type const last = p.row->lastPrintablePos(); LyXFont orig_font(getFont(p.bv->buffer(), p.row->par(), pos)); // first character string str; str += p.row->par()->getChar(pos); if (arabic) { unsigned char c = str[0]; str[0] = transformChar(c, p.row->par(), pos); } bool prev_struckout(isDeletedText(p.row->par(), pos)); bool prev_newtext(isInsertedText(p.row->par(), pos)); ++vpos; // collect as much similar chars as we can while (vpos <= last && (pos = vis2log(vpos)) >= 0) { char c = p.row->par()->getChar(pos); if (!IsPrintableNonspace(c)) break; if (prev_struckout != isDeletedText(p.row->par(), pos)) break; if (prev_newtext != isInsertedText(p.row->par(), pos)) break; if (arabic && Encodings::IsComposeChar_arabic(c)) break; if (hebrew && Encodings::IsComposeChar_hebrew(c)) break; if (orig_font != getFont(p.bv->buffer(), p.row->par(), pos)) break; if (arabic) c = transformChar(c, p.row->par(), pos); str += c; ++vpos; } if (prev_struckout) { orig_font.setColor(LColor::strikeout); } else if (prev_newtext) { orig_font.setColor(LColor::newtext); } // Draw text and set the new x position p.pain->text(int(p.x), p.yo + p.row->baseline(), str, orig_font); p.x += font_metrics::width(str, orig_font); } bool LyXText::draw(DrawRowParams & p, pos_type & vpos) { pos_type const pos = vis2log(vpos); Paragraph * par = p.row->par(); LyXFont const & orig_font = getFont(p.bv->buffer(), par, pos); float const orig_x = p.x; char const c = par->getChar(pos); if (IsNewlineChar(c)) { ++vpos; drawNewline(p, pos); return true; } else if (IsInsetChar(c)) { if (!drawInset(p, pos)) return false; ++vpos; drawForeignMark(p, orig_x, orig_font); return true; } // usual characters, no insets // special case languages bool const hebrew = (orig_font.language()->lang() == "hebrew"); bool const arabic = orig_font.language()->lang() == "arabic" && (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 || lyxrc.font_norm_type == LyXRC::ISO_10646_1); // draw as many chars as we can if ((!hebrew && !arabic) || (hebrew && !Encodings::IsComposeChar_hebrew(c)) || (arabic && !Encodings::IsComposeChar_arabic(c))) { drawChars(p, vpos, hebrew, arabic); } else if (hebrew) { drawHebrewComposeChar(p, vpos); } else if (arabic) { drawArabicComposeChar(p, vpos); } drawForeignMark(p, orig_x, orig_font); return true; } int LyXText::leftMargin(BufferView * bview, Row const * row) const { Inset * ins; if ((row->par()->getChar(row->pos()) == Paragraph::META_INSET) && (ins=row->par()->getInset(row->pos())) && (ins->needFullRow() || ins->display())) return LEFT_MARGIN; LyXTextClass const & tclass = bview->buffer()->params.getLyXTextClass(); LyXLayout_ptr const & layout = row->par()->layout(); string parindent = layout->parindent; int x = LEFT_MARGIN; x += font_metrics::signedWidth(tclass.leftmargin(), tclass.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()->layout() == tclass.defaultLayout()) { // find the previous same level paragraph if (row->par()->previous()) { Paragraph * newpar = row->par() ->depthHook(row->par()->getDepth()); if (newpar && newpar->layout()->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 && newpar->layout()->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()->layout() == tclass.defaultLayout()) { if (newpar->params().noindent()) parindent.erase(); else { parindent = newpar->layout()->parindent; } } } LyXFont const labelfont = getLabelFont(bview->buffer(), row->par()); switch (layout->margintype) { case MARGIN_DYNAMIC: if (!layout->leftmargin.empty()) { x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()); } if (!row->par()->getLabelstring().empty()) { x += font_metrics::signedWidth(layout->labelindent, labelfont); x += font_metrics::width(row->par()->getLabelstring(), labelfont); x += font_metrics::width(layout->labelsep, labelfont); } break; case MARGIN_MANUAL: x += font_metrics::signedWidth(layout->labelindent, labelfont); if (row->pos() >= row->par()->beginningOfMainBody()) { if (!row->par()->getLabelWidthString().empty()) { x += font_metrics::width(row->par()->getLabelWidthString(), labelfont); x += font_metrics::width(layout->labelsep, labelfont); } } break; case MARGIN_STATIC: x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()) * 4 / (row->par()->getDepth() + 4); break; case MARGIN_FIRST_DYNAMIC: if (layout->labeltype == LABEL_MANUAL) { if (row->pos() >= row->par()->beginningOfMainBody()) { x += font_metrics::signedWidth(layout->leftmargin, labelfont); } else { x += font_metrics::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 += font_metrics::signedWidth(layout->leftmargin, labelfont); } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT && layout->labeltype != LABEL_BIBLIO && layout->labeltype != LABEL_CENTERED_TOP_ENVIRONMENT) { x += font_metrics::signedWidth(layout->labelindent, labelfont); x += font_metrics::width(layout->labelsep, labelfont); x += font_metrics::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 += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()); x += minfill; } break; } if ((workWidth(bview) > 0) && !row->par()->params().leftIndent().zero()) { LyXLength const len = row->par()->params().leftIndent(); int const tw = inset_owner ? inset_owner->latexTextWidth(bview) : workWidth(bview); x += len.inPixels(tw); } LyXAlignment 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() // in tabulars and ert paragraphs are never indented! && (!row->par()->inInset() || !row->par()->inInset()->owner() || (row->par()->inInset()->owner()->lyxCode() != Inset::TABULAR_CODE && row->par()->inInset()->owner()->lyxCode() != Inset::ERT_CODE)) && (row->par()->layout() != tclass.defaultLayout() || bview->buffer()->params.paragraph_separation == BufferParams::PARSEP_INDENT)) { x += font_metrics::signedWidth(parindent, tclass.defaultfont()); } else if (layout->labeltype == LABEL_BIBLIO) { // ale970405 Right width for bibitems x += bibitemMaxWidth(bview, tclass.defaultfont()); } } return x; } int LyXText::rightMargin(Buffer const * buf, Row const * row) const { Inset * ins; if ((row->par()->getChar(row->pos()) == Paragraph::META_INSET) && (ins=row->par()->getInset(row->pos())) && (ins->needFullRow() || ins->display())) return PAPER_MARGIN; LyXTextClass const & tclass = buf->params.getLyXTextClass(); LyXLayout_ptr const & layout = row->par()->layout(); int x = PAPER_MARGIN + font_metrics::signedWidth(tclass.rightmargin(), tclass.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 && newpar->layout()->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 += font_metrics::signedWidth(layout->rightmargin, tclass.defaultfont()) * 4 / (row->par()->getDepth() + 4); return x; } int LyXText::labelEnd(BufferView * bview, Row const * row) const { if (row->par()->layout()->margintype == MARGIN_MANUAL) { Row tmprow; tmprow = *row; tmprow.pos(row->par()->size()); // just the beginning of the main body return leftMargin(bview, &tmprow); } else { // LabelEnd is only needed, // if the layout fills a flushleft label. return 0; } } // get the next breakpoint in a given paragraph pos_type LyXText::nextBreakPoint(BufferView * bview, Row const * row, int width) const { Paragraph * par = row->par(); if (width < 0) return par->size(); pos_type const pos = row->pos(); // position of the last possible breakpoint // -1 isn't a suitable value, but a flag pos_type last_separator = -1; width -= rightMargin(bview->buffer(), row); pos_type const main_body = par->beginningOfMainBody(); LyXLayout_ptr const & layout = par->layout(); pos_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->isInset(i) && par->getInset(i) && par->getInset(i)->display()) { par->getInset(i)->display(false); } ++i; } } else { // Last position is an invariant pos_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); Inset * in = 0; if (c == Paragraph::META_INSET) in = par->getInset(i); if (IsNewlineChar(c)) { last_separator = i; x = width; // this means break } else if (in && !in->isChar()) { // check wether a Display() inset is // valid here. if not, change it to // non-display if (in->display() && (layout->isCommand() || (layout->labeltype == LABEL_MANUAL && i < par->beginningOfMainBody()))) { // display istn't allowd in->display(false); x += singleWidth(bview, par, i, c); } else if (in->display() || in->needFullRow()) { // So break the line here if (i == pos) { if (pos < last-1) { last_separator = i; if (par->isLineSeparator(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); // we have to check this separately as we could have a // lineseparator and then the algorithm below would prefer // that which IS wrong! We should always break on an inset // if it's too long and not on the last separator. // Maybe the only exeption is insets used as chars but // then we would have to have a special function inside // the inset to tell us this. Till then we leave it as // it is now. (Jug 20020106) if (pos < i && x >= width && last_separator >= 0) last_separator = i - 1; } } else { if (par->isLineSeparator(i)) last_separator = i; x += singleWidth(bview, par, i, c); } ++i; if (i == main_body) { x += font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), par)); if (par->isLineSeparator(i - 1)) x-= singleWidth(bview, par, i - 1); int left_margin = labelEnd(bview, row); if (x < left_margin) x = left_margin; } } if ((pos+1 < i) && (last_separator < 0) && (x >= width)) last_separator = i - 2; else if ((pos < i) && (last_separator < 0) && (x >= width)) last_separator = i - 1; // end of paragraph is always a suitable separator else 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 0; int w; // get the pure distance pos_type const last = row->lastPrintablePos(); // special handling of the right address boxes if (row->par()->layout()->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_ptr const & layout = row->par()->layout(); pos_type const main_body = row->par()->beginningOfMainBody(); pos_type i = row->pos(); while (i <= last) { if (main_body > 0 && i == main_body) { w += font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), row->par())); 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 += font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), row->par())); 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); return fill; } // returns the minimum space a manual label needs on the screen in pixel int LyXText::labelFill(BufferView * bview, Row const * row) const { pos_type last = row->par()->beginningOfMainBody() - 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; // a separator at this end does not count if (row->par()->isLineSeparator(last)) --last; int w = 0; pos_type i = row->pos(); while (i <= last) { w += singleWidth(bview, row->par(), i); ++i; } int fill = 0; if (!row->par()->params().labelWidthString().empty()) { fill = max(font_metrics::width(row->par()->params().labelWidthString(), getLabelFont(bview->buffer(), row->par())) - w, 0); } return fill; } LColor::color LyXText::backgroundColor() { if (inset_owner) return inset_owner->backgroundColor(); else return LColor::background; } void LyXText::setHeightOfRow(BufferView * bview, Row * row) 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; // 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->par(); Paragraph * firstpar = row->par(); LyXLayout_ptr const & layout = firstpar->layout(); // as max get the first character of this row then it can increase but not // decrease 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->pos()); LyXFont::FONT_SIZE const tmpsize = font.size(); font = getLayoutFont(bview->buffer(), par); LyXFont::FONT_SIZE const size = font.size(); font.setSize(tmpsize); LyXFont labelfont = getLabelFont(bview->buffer(), par); float spacing_val = 1.0; if (!row->par()->params().spacing().isDefault()) { spacing_val = row->par()->params().spacing().getValue(); } else { spacing_val = bview->buffer()->params.spacing.getValue(); } //lyxerr << "spacing_val = " << spacing_val << endl; int maxasc = int(font_metrics::maxAscent(font) * layout->spacing.getValue() * spacing_val); int maxdesc = int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val); pos_type const pos_end = row->lastPos(); int labeladdon = 0; int maxwidth = 0; // Check if any insets are larger for (pos_type pos = row->pos(); pos <= pos_end; ++pos) { if (row->par()->isInset(pos)) { tmpfont = getFont(bview->buffer(), row->par(), pos); tmpinset = row->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->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->par()->highestFontInRange(row->pos(), pos_end, size); if (maxsize > font.size()) { font.setSize(maxsize); asc = font_metrics::maxAscent(font); desc = font_metrics::maxDescent(font); if (asc > maxasc) maxasc = asc; if (desc > maxdesc) maxdesc = desc; } // This is nicer with box insets: ++maxasc; ++maxdesc; row->ascent_of_text(maxasc); // is it a top line? if (!row->pos() && (row->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() && firstpar->previous()->layout()->isParagraph() && firstpar->previous()->getDepth() == 0) { // is it right to use defskip here too? (AS) maxasc += bview->buffer()->params.getDefSkip().inPixels(bview); } } // the top margin if (!row->par()->previous() && isTopLevel()) maxasc += PAPER_MARGIN; // add the vertical spaces, that the user added maxasc += getLengthMarkerHeight(bview, firstpar->params().spaceTop()); // do not forget the DTP-lines! // there height depends on the font of the nearest character if (firstpar->params().lineTop()) maxasc += 2 * font_metrics::ascent('x', getFont(bview->buffer(), firstpar, 0)); // and now the pagebreaks if (firstpar->params().pagebreakTop()) maxasc += 3 * defaultRowHeight(); // 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->par()->params().spacing().isDefault()) { spacing_val = row->par()->params().spacing().getValue(); } else { spacing_val = bview->buffer()->params.spacing.getValue(); } labeladdon = int(font_metrics::maxDescent(labelfont) * layout->spacing.getValue() * spacing_val) + int(font_metrics::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->par()->isFirstInSequence() && !row->par()->getLabelstring().empty()) { float spacing_val = 1.0; if (!row->par()->params().spacing().isDefault()) { spacing_val = row->par()->params().spacing().getValue(); } else { spacing_val = bview->buffer()->params.spacing.getValue(); } labeladdon = int( (font_metrics::maxAscent(labelfont) * layout->spacing.getValue() * spacing_val) +(font_metrics::maxDescent(labelfont) * layout->spacing.getValue() * spacing_val) + layout->topsep * defaultRowHeight() + layout->labelbottomsep * defaultRowHeight()); } // 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->par()->previous(); if (prev) prev = row->par()->depthHook(row->par()->getDepth()); if (prev && prev->layout() == firstpar->layout() && prev->getDepth() == firstpar->getDepth() && prev->getLabelWidthString() == firstpar->getLabelWidthString()) { layoutasc = (layout->itemsep * defaultRowHeight()); } else if (row->previous()) { tmptop = layout->topsep; if (row->previous()->par()->getDepth() >= row->par()->getDepth()) tmptop -= row->previous()->par()->layout()->bottomsep; if (tmptop > 0) layoutasc = (tmptop * defaultRowHeight()); } else if (row->par()->params().lineTop()) { tmptop = layout->topsep; if (tmptop > 0) layoutasc = (tmptop * defaultRowHeight()); } prev = row->par()->outerHook(); if (prev) { maxasc += int(prev->layout()->parsep * defaultRowHeight()); } else { if (firstpar->previous() && firstpar->previous()->getDepth() == 0 && firstpar->previous()->layout() != firstpar->layout()) { // avoid parsep } else if (firstpar->previous()) { maxasc += int(layout->parsep * defaultRowHeight()); } } } } // is it a bottom line? if (row->par() == par && (!row->next() || row->next()->par() != row->par())) { // the bottom margin if (!par->next() && isTopLevel()) maxdesc += PAPER_MARGIN; // add the vertical spaces, that the user added maxdesc += getLengthMarkerHeight(bview, firstpar->params().spaceBottom()); // do not forget the DTP-lines! // there height depends on the font of the nearest character if (firstpar->params().lineBottom()) maxdesc += 2 * font_metrics::ascent('x', getFont(bview->buffer(), par, max(pos_type(0), par->size() - 1))); // and now the pagebreaks if (firstpar->params().pagebreakBottom()) maxdesc += 3 * defaultRowHeight(); // 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->par()->next()) { Paragraph * nextpar = row->par()->next(); Paragraph * comparepar = row->par(); float usual = 0; float unusual = 0; if (comparepar->getDepth() > nextpar->getDepth()) { usual = (comparepar->layout()->bottomsep * defaultRowHeight()); comparepar = comparepar->depthHook(nextpar->getDepth()); if (comparepar->layout()!= nextpar->layout() || nextpar->getLabelWidthString() != comparepar->getLabelWidthString()) { unusual = (comparepar->layout()->bottomsep * defaultRowHeight()); } if (unusual > usual) layoutdesc = unusual; else layoutdesc = usual; } else if (comparepar->getDepth() == nextpar->getDepth()) { if (comparepar->layout() != nextpar->layout() || nextpar->getLabelWidthString() != comparepar->getLabelWidthString()) layoutdesc = int(comparepar->layout()->bottomsep * defaultRowHeight()); } } } // 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->height(); row->height(maxasc + maxdesc + labeladdon); row->baseline(maxasc + labeladdon); height += row->height(); row->top_of_text(row->baseline() - font_metrics::maxAscent(font)); float x = 0; if (layout->margintype != MARGIN_RIGHT_ADDRESS_BOX) { float dummy; // this IS needed row->width(maxwidth); prepareToPrint(bview, row, x, dummy, dummy, dummy, false); } row->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) pos_type const lastposition = row->par()->size(); do { // Get the next breakpoint pos_type 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 // fixed fill setting now by calling inset->update() in // SingleWidth when needed! 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 pos_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 pos_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) { // allow only if at start or end, or all previous is new text if (cursor.pos() && cursor.pos() != cursor.par()->size() && cursor.par()->isChangeEdited(0, cursor.pos())) return; LyXTextClass const & tclass = bview->buffer()->params.getLyXTextClass(); LyXLayout_ptr const & layout = cursor.par()->layout(); // this is only allowed, if the current paragraph is not empty or caption // and if it has not the keepempty flag aktive if (cursor.par()->empty() && layout->labeltype != LABEL_SENSITIVE && !layout->keepempty) return; setUndo(bview, Undo::FINISH, 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(); // we need to set this before we insert the paragraph. IMO the // breakParagraph call should return a bool if it inserts the // paragraph before or behind and we should react on that one // but we can fix this in 1.3.0 (Jug 20020509) bool const isempty = (layout->keepempty && cursor.par()->empty()); ::breakParagraph(bview->buffer()->params, cursor.par(), 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()->applyLayout(tclass.defaultLayout()); else // set to standard-layout cursor.par()->next()->applyLayout(tclass.defaultLayout()); } // 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()->empty() && cursor.par()->next()->isNewline(0)) cursor.par()->next()->erase(0); insertParagraph(bview, cursor.par()->next(), cursor.row()); updateCounters(bview); // This check is necessary. Otherwise the new empty paragraph will // be deleted automatically. And it is more friendly for the user! if (cursor.pos() || isempty) 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 = cursor.row()->par()->layout()->free_spacing || cursor.row()->par()->isFreeSpacing(); 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 pos_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.pos() <= cursor.par()->beginningOfMainBody()) { 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()->isInset(cursor.row()->pos())) { Inset * inset = cursor.row()->par()->getInset(cursor.row()->pos()); if (inset && (inset->display() || inset->needFullRow())) { // force a new break 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 (row->previous() && row->previous()->par() == row->par() && (cursor.par()->isLineSeparator(cursor.pos()) || cursor.par()->isNewline(cursor.pos()) || ((cursor.pos() < cursor.par()->size()) && cursor.par()->isInset(cursor.pos()+1)) || cursor.row()->fill() == -1)) { pos_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 (c == Paragraph::META_INSET || row->fill() < 0) { 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->lastPos() <= 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_row = row; 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 (cursor.par()->layout()->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 LyXLayout_ptr const & layout = row->par()->layout(); if (layout->margintype == MARGIN_MANUAL && layout->labeltype == LABEL_MANUAL) { // one more since labels are left aligned nlh = row->numberOfLabelHfills() + 1; if (nlh && !row->par()->getLabelWidthString().empty()) { fill_label_hfill = labelFill(bview, row) / nlh; } } // are there any hfills in the row? float const nh = row->numberOfHfills(); if (nh) { if (w > 0) fill_hfill = w / nh; // we don't have to look at the alignment if it is ALIGN_LEFT and // if the row is already larger then the permitted width as then // we force the LEFT_ALIGN'edness! } else if (static_cast(row->width()) < workWidth(bview)) { // is it block, flushleft or flushright? // set x how you need it int align; if (row->par()->params().align() == LYX_ALIGN_LAYOUT) { align = layout->align; } else { align = row->par()->params().align(); } // center displayed insets Inset * inset; if (row->par()->isInset(row->pos()) && (inset=row->par()->getInset(row->pos())) && (inset->display())) // || (inset->scroll() < 0))) align = (inset->lyxCode() == Inset::MATHMACRO_CODE) ? LYX_ALIGN_BLOCK : LYX_ALIGN_CENTER; // ERT insets should always be LEFT ALIGNED on screen inset = row->par()->inInset(); if (inset && inset->owner() && inset->owner()->lyxCode() == Inset::ERT_CODE) { align = LYX_ALIGN_LEFT; } switch (align) { case LYX_ALIGN_BLOCK: ns = row->numberOfSeparators(); if (ns && row->next() && row->next()->par() == row->par() && !(row->next()->par()->isNewline(row->next()->pos() - 1)) && !(row->next()->par()->isInset(row->next()->pos()) && 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) { pos_type main_body = row->par()->beginningOfMainBody(); pos_type last = row->lastPos(); if (main_body > 0 && (main_body - 1 > last || !row->par()->isLineSeparator(main_body - 1))) { x += font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), row->par())); 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.par()->isInset(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; } void LyXText::acceptChange(BufferView * bv) { if (!selection.set() && cursor.par()->size()) return; bv->hideCursor(); if (selection.start.par() == selection.end.par()) { LyXCursor & startc = selection.start; LyXCursor & endc = selection.end; setUndo(bv, Undo::INSERT, startc.par(), startc.par()->next()); startc.par()->acceptChange(startc.pos(), endc.pos()); finishUndo(); clearSelection(); redoParagraphs(bv, startc, startc.par()->next()); setCursorIntern(bv, startc.par(), 0); } #warning handle multi par selection } void LyXText::rejectChange(BufferView * bv) { if (!selection.set() && cursor.par()->size()) return; bv->hideCursor(); if (selection.start.par() == selection.end.par()) { LyXCursor & startc = selection.start; LyXCursor & endc = selection.end; setUndo(bv, Undo::INSERT, startc.par(), startc.par()->next()); startc.par()->rejectChange(startc.pos(), endc.pos()); finishUndo(); clearSelection(); redoParagraphs(bv, startc, startc.par()->next()); setCursorIntern(bv, startc.par(), 0); } #warning handle multi par selection } // This function is only used by the spellchecker for NextWord(). // It doesn't handle LYX_ACCENTs and probably never will. WordLangTuple const LyXText::selectNextWordToSpellcheck(BufferView * bview, float & value) const { if (the_locking_inset) { WordLangTuple word = the_locking_inset->selectNextWordToSpellcheck(bview, value); if (!word.word().empty()) { value += float(cursor.y()); value /= float(height); return word; } // we have to go on checking so move cursor to the next char if (cursor.pos() == cursor.par()->size()) { if (!cursor.par()->next()) return word; 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 (1) { Paragraph * cpar(cursor.par()); pos_type const cpos(cursor.pos()); if (cpos == cpar->size()) { if (cpar->next()) { cursor.par(cpar->next()); cursor.pos(0); continue; } break; } bool const is_bad_inset(cpar->isInset(cpos) && !cpar->getInset(cpos)->allowSpellcheck()); if (cpar->isLetter(cpos) && !isDeletedText(cpar, cpos) && !is_bad_inset) break; cursor.pos(cpos + 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->selectNextWordToSpellcheck(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; string lang_code( getFont(bview->buffer(), cursor.par(), cursor.pos()) .language()->code()); // and find the end of the word (insets like optional hyphens // and ligature break are part of a word) while (cursor.pos() < cursor.par()->size() && cursor.par()->isLetter(cursor.pos()) && !isDeletedText(cursor.par(), cursor.pos())) cursor.pos(cursor.pos() + 1); // Finally, we copy the word to a string and return it string str; if (selection.cursor.pos() < cursor.pos()) { pos_type i; for (i = selection.cursor.pos(); i < cursor.pos(); ++i) { if (!cursor.par()->isInset(i)) str += cursor.par()->getChar(i); } } return WordLangTuple(str, lang_code); } // 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; // now find the end of the word while (cursor.pos() < cursor.par()->size() && (cursor.par()->isLetter(cursor.pos()))) 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()->empty()) 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, true, false); } } // Delete from cursor to start of current or prior word. void LyXText::deleteWordBackward(BufferView * bview) { if (cursor.par()->empty()) 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, true, false); } } // Kill to end of line. void LyXText::deleteLineForward(BufferView * bview) { if (cursor.par()->empty()) // 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, true, false); } } } // 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()); pos_type pos = from.pos(); Paragraph * par = from.par(); while (par && (pos != to.pos() || par != to.par())) { if (pos == par->size()) { par = par->next(); pos = 0; continue; } unsigned char c = par->getChar(pos); if (!IsInsetChar(c) && !IsHfillChar(c)) { switch (action) { case text_lowercase: c = lowercase(c); break; case text_capitalization: c = uppercase(c); action = text_lowercase; break; case text_uppercase: c = uppercase(c); break; } } #warning changes par->setChar(pos, c); checkParagraph(bview, par, pos); ++pos; } 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()); pos_type tmppos = cursor.pos(); // First decide if it is possible to transpose at all if (tmppos == 0 || tmppos == tmppar->size()) return; if (isDeletedText(tmppar, tmppos - 1) || isDeletedText(tmppar, tmppos)) return; unsigned char c1 = tmppar->getChar(tmppos); unsigned char c2 = tmppar->getChar(tmppos - 1); // We should have an implementation that handles insets // as well, but that will have to come later. (Lgb) if (c1 == Paragraph::META_INSET || c2 == Paragraph::META_INSET) return; bool const erased = tmppar->erase(tmppos - 1, tmppos + 1); pos_type const ipos(erased ? tmppos - 1 : tmppos + 1); tmppar->insertChar(ipos, c1); tmppar->insertChar(ipos + 1, c2); /* fugly */ BufferView * bv(const_cast(&bview)); checkParagraph(bv, 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) { // delete-empty-paragraph-mechanism has done it return; } // if you had success make a backspace if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) { LyXCursor tmpcursor = cursor; // to make sure undo gets the right cursor position cursor = old_cursor; 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 pos_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. // but it's not allowed unless it's new if (cursor.par()->isChangeEdited(0, cursor.par()->size())) return; // 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()->layout() == tmppar->layout() && 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 LyXTextClass const & tclass = bview->buffer()->params.getLyXTextClass(); if (cursor.par() != tmppar && (cursor.par()->layout() == tmppar->layout() || tmppar->layout() == tclass.defaultLayout()) && cursor.par()->getAlign() == tmppar->getAlign()) { removeParagraph(tmprow); removeRow(tmprow); mergeParagraph(bview->buffer()->params, cursor.par()); 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); // 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()->isInset(cursor.pos())) { 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(); pos_type z; // remember that a space at the end of a row doesnt count // when calculating the fill if (cursor.pos() < row->lastPos() || !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()->empty() && cursor.par()->isNewline(cursor.pos()) && cursor.pos() == cursor.par()->beginningOfMainBody()) { 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() && (row->lastPos() == row->par()->size() - 1 || nextBreakPoint(bview, row, workWidth(bview)) != row->lastPos())) { // 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 (row->lastPos() == 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() && row->lastPos() <= 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 (cursor.par()->layout()->margintype == MARGIN_RIGHT_ADDRESS_BOX) { redoDrawingOfParagraph(bview, cursor); } } } bool LyXText::paintRowBackground(DrawRowParams & p) { bool clear_area = true; Inset * inset = 0; LyXFont font(LyXFont::ALL_SANE); pos_type const last = p.row->lastPrintablePos(); if (!p.bv->screen().forceClear() && last == p.row->pos() && p.row->par()->isInset(p.row->pos())) { inset = p.row->par()->getInset(p.row->pos()); if (inset) { clear_area = inset->doClearArea(); } } if (p.cleared) { return true; } if (clear_area) { int const x = p.xo; int const y = p.yo < 0 ? 0 : p.yo; int const h = p.yo < 0 ? p.row->height() + p.yo : p.row->height(); p.pain->fillRectangle(x, y, p.width, h, backgroundColor()); return true; } if (inset == 0) return false; int h = p.row->baseline() - inset->ascent(p.bv, font); // first clear the whole row above the inset! if (h > 0) { p.pain->fillRectangle(p.xo, p.yo, p.width, h, backgroundColor()); } // clear the space below the inset! h += inset->ascent(p.bv, font) + inset->descent(p.bv, font); if ((p.row->height() - h) > 0) { p.pain->fillRectangle(p.xo, p.yo + h, p.width, p.row->height() - h, backgroundColor()); } // clear the space behind the inset, if needed if (!inset->display() && !inset->needFullRow()) { int const xp = int(p.x) + inset->width(p.bv, font); if (p.width - xp > 0) { p.pain->fillRectangle(xp, p.yo, p.width - xp, p.row->height(), backgroundColor()); } } return false; } void LyXText::paintRowSelection(DrawRowParams & p) { bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params); // the current selection int const startx = selection.start.x(); int const endx = selection.end.x(); int const starty = selection.start.y(); int const endy = selection.end.y(); Row const * startrow = selection.start.row(); Row const * endrow = selection.end.row(); Row * row = p.row; if (bidi_same_direction) { int x; int y = p.yo; int w; int h = row->height(); if (startrow == row && endrow == row) { if (startx < endx) { x = p.xo + startx; w = endx - startx; p.pain->fillRectangle(x, y, w, h, LColor::selection); } else { x = p.xo + endx; w = startx - endx; p.pain->fillRectangle(x, y, w, h, LColor::selection); } } else if (startrow == row) { int const x = (is_rtl) ? p.xo : (p.xo + startx); int const w = (is_rtl) ? startx : (p.width - startx); p.pain->fillRectangle(x, y, w, h, LColor::selection); } else if (endrow == row) { int const x = (is_rtl) ? (p.xo + endx) : p.xo; int const w = (is_rtl) ? (p.width - endx) : endx; p.pain->fillRectangle(x, y, w, h, LColor::selection); } else if (p.y > starty && p.y < endy) { p.pain->fillRectangle(p.xo, y, p.width, h, LColor::selection); } return; } else if (startrow != row && endrow != row) { if (p.y > starty && p.y < endy) { int w = p.width; int h = row->height(); p.pain->fillRectangle(p.xo, p.yo, w, h, LColor::selection); } return; } if ((startrow != row && !is_rtl) || (endrow != row && is_rtl)) p.pain->fillRectangle(p.xo, p.yo, int(p.x), row->height(), LColor::selection); Buffer const * buffer = p.bv->buffer(); Paragraph * par = row->par(); pos_type const main_body = par->beginningOfMainBody(); pos_type const last = row->lastPrintablePos(); float tmpx = p.x; for (pos_type vpos = row->pos(); vpos <= last; ++vpos) { pos_type pos = vis2log(vpos); float const old_tmpx = tmpx; if (main_body > 0 && pos == main_body - 1) { LyXLayout_ptr const & layout = par->layout(); LyXFont const lfont = getLabelFont(buffer, par); tmpx += p.label_hfill + font_metrics::width(layout->labelsep, lfont); if (par->isLineSeparator(main_body - 1)) tmpx -= singleWidth(p.bv, par, main_body - 1); } if (row->hfillExpansion(pos)) { tmpx += singleWidth(p.bv, par, pos); if (pos >= main_body) tmpx += p.hfill; else tmpx += p.label_hfill; } else if (par->isSeparator(pos)) { tmpx += singleWidth(p.bv, par, pos); if (pos >= main_body) tmpx += p.separator; } else { tmpx += singleWidth(p.bv, par, pos); } if ((startrow != row || selection.start.pos() <= pos) && (endrow != row || pos < selection.end.pos())) { // Here we do not use p.x as p.xo was added to p.x. p.pain->fillRectangle(int(old_tmpx), p.yo, int(tmpx - old_tmpx + 1), row->height(), LColor::selection); } } if ((startrow != row && is_rtl) || (endrow != row && !is_rtl)) { p.pain->fillRectangle(p.xo + int(tmpx), p.yo, int(p.bv->workWidth() - tmpx), row->height(), LColor::selection); } } void LyXText::paintChangeBar(DrawRowParams & p) { pos_type const start = p.row->pos(); pos_type const end = p.row->lastPrintablePos(); if (!p.row->par()->isChanged(start, end)) return; int const height = (p.row->next() ? p.row->height() + p.row->next()->top_of_text() : p.row->baseline()); p.pain->fillRectangle(4, p.yo, 5, height, LColor::changebar); } void LyXText::paintRowAppendix(DrawRowParams & p) { // FIXME: can be just p.width ? int const ww = p.bv->workWidth(); Paragraph * firstpar = p.row->par(); if (firstpar->params().appendix()) { p.pain->line(1, p.yo, 1, p.yo + p.row->height(), LColor::appendixline); p.pain->line(ww - 2, p.yo, ww - 2, p.yo + p.row->height(), LColor::appendixline); } } void LyXText::paintRowDepthBar(DrawRowParams & p) { Paragraph::depth_type const depth = p.row->par()->getDepth(); if (depth <= 0) return; Paragraph::depth_type prev_depth = 0; if (p.row->previous()) prev_depth = p.row->previous()->par()->getDepth(); Paragraph::depth_type next_depth = 0; if (p.row->next()) next_depth = p.row->next()->par()->getDepth(); for (Paragraph::depth_type i = 1; i <= depth; ++i) { int x = (PAPER_MARGIN / 5) * i + p.xo; // only consider the changebar space if we're drawing outer left if (!p.xo) x += CHANGEBAR_MARGIN; int const h = p.yo + p.row->height() - 1 - (i - next_depth - 1) * 3; p.pain->line(x, p.yo, x, h, LColor::depthbar); int const w = PAPER_MARGIN / 5; if (i > prev_depth) { p.pain->fillRectangle(x, p.yo, w, 2, LColor::depthbar); } if (i > next_depth) { p.pain->fillRectangle(x, h, w, 2, LColor::depthbar); } } } int LyXText::getLengthMarkerHeight(BufferView * bv, VSpace const & vsp) const { if (vsp.kind() == VSpace::NONE) return 0; int const arrow_size = 4; int const space_size = int(vsp.inPixels(bv)); LyXFont font; font.decSize(); int const min_size = max(3 * arrow_size, font_metrics::maxAscent(font) + font_metrics::maxDescent(font)); if (vsp.length().len().value() < 0.0) return min_size; else return max(min_size, space_size); } int LyXText::drawLengthMarker(DrawRowParams & p, string const & prefix, VSpace const & vsp, int start) { if (vsp.kind() == VSpace::NONE) return 0; int const arrow_size = 4; int const size = getLengthMarkerHeight(p.bv, vsp); int const end = start + size; // the label to display (if any) string str; // y-values for top arrow int ty1, ty2; // y-values for bottom arrow int by1, by2; str = prefix + " (" + vsp.asLyXCommand() + ")"; if (vsp.kind() == VSpace::VFILL ) { ty1 = ty2 = start; by1 = by2 = end; } else { // adding or removing space bool const added = vsp.kind() != VSpace::LENGTH || vsp.length().len().value() > 0.0; ty1 = added ? (start + arrow_size) : start; ty2 = added ? start : (start + arrow_size); by1 = added ? (end - arrow_size) : end; by2 = added ? end : (end - arrow_size); } int const leftx = p.xo + leftMargin(p.bv, p.row); int const midx = leftx + arrow_size; int const rightx = midx + arrow_size; // first the string int w = 0; int a = 0; int d = 0; LyXFont font; font.setColor(LColor::added_space).decSize().decSize(); font_metrics::rectText(str, font, w, a, d); p.pain->rectText(leftx + 2 * arrow_size + 5, start + ((end - start) / 2) + d, str, font); // top arrow p.pain->line(leftx, ty1, midx, ty2, LColor::added_space); p.pain->line(midx, ty2, rightx, ty1, LColor::added_space); // bottom arrow p.pain->line(leftx, by1, midx, by2, LColor::added_space); p.pain->line(midx, by2, rightx, by1, LColor::added_space); // joining line p.pain->line(midx, ty2, midx, by2, LColor::added_space); return size; } int LyXText::paintPageBreak(string const & label, int y, DrawRowParams & p) { LyXFont pb_font; pb_font.setColor(LColor::pagebreak).decSize(); int w = 0; int a = 0; int d = 0; font_metrics::rectText(label, pb_font, w, a, d); int const text_start = p.xo + ((p.width - w) / 2); int const text_end = text_start + w; p.pain->rectText(text_start, y + d, label, pb_font); p.pain->line(p.xo, y, text_start, y, LColor::pagebreak, Painter::line_onoffdash); p.pain->line(text_end, y, p.xo + p.width, y, LColor::pagebreak, Painter::line_onoffdash); return 3 * defaultRowHeight(); } void LyXText::paintFirstRow(DrawRowParams & p) { Paragraph * par = p.row->par(); ParagraphParameters const & parparams = par->params(); // start of appendix? if (parparams.startOfAppendix()) { p.pain->line(1, p.yo, p.width - 2, p.yo, LColor::appendixline); } int y_top = 0; // the top margin if (!p.row->previous() && isTopLevel()) y_top += PAPER_MARGIN; // draw a top pagebreak if (parparams.pagebreakTop()) { y_top += paintPageBreak(_("Page Break (top)"), p.yo + y_top + 2 * defaultRowHeight(), p); } // draw the additional space if needed: y_top += drawLengthMarker(p, _("Space above"), parparams.spaceTop(), p.yo + y_top); Buffer const * buffer = p.bv->buffer(); LyXLayout_ptr const & layout = par->layout(); // think about the parskip // some parskips VERY EASY IMPLEMENTATION if (buffer->params.paragraph_separation == BufferParams::PARSEP_SKIP) { if (par->previous()) { if (layout->latextype == LATEX_PARAGRAPH && !par->getDepth()) { y_top += buffer->params.getDefSkip().inPixels(p.bv); } else { LyXLayout_ptr const & playout = par->previous()->layout(); if (playout->latextype == LATEX_PARAGRAPH && !par->previous()->getDepth()) { // is it right to use defskip here, too? (AS) y_top += buffer->params.getDefSkip().inPixels(p.bv); } } } } int const ww = p.bv->workWidth(); // draw a top line if (parparams.lineTop()) { LyXFont font(LyXFont::ALL_SANE); int const asc = font_metrics::ascent('x', getFont(buffer, par, 0)); y_top += asc; int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww); int const xp = static_cast(inset_owner ? p.xo : 0); p.pain->line(xp, p.yo + y_top, xp + w, p.yo + y_top, LColor::topline, Painter::line_solid, Painter::line_thick); y_top += asc; } bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params); // should we print a label? if (layout->labeltype >= LABEL_STATIC && (layout->labeltype != LABEL_STATIC || layout->latextype != LATEX_ENVIRONMENT || par->isFirstInSequence())) { LyXFont font = getLabelFont(buffer, par); if (!par->getLabelstring().empty()) { float x = p.x; string const str = par->getLabelstring(); // this is special code for the chapter layout. This is // printed in an extra row and has a pagebreak at // the top. if (layout->labeltype == LABEL_COUNTER_CHAPTER) { if (buffer->params.secnumdepth >= 0) { float spacing_val = 1.0; if (!parparams.spacing().isDefault()) { spacing_val = parparams.spacing().getValue(); } else { spacing_val = buffer->params.spacing.getValue(); } int const maxdesc = int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val) + int(layout->parsep) * defaultRowHeight(); if (is_rtl) { x = ww - leftMargin(p.bv, p.row) - font_metrics::width(str, font); } p.pain->text(int(x), p.yo + p.row->baseline() - p.row->ascent_of_text() - maxdesc, str, font); } } else { if (is_rtl) { x = ww - leftMargin(p.bv, p.row) + font_metrics::width(layout->labelsep, font); } else { x = p.x - font_metrics::width(layout->labelsep, font) - font_metrics::width(str, font); } p.pain->text(int(x), p.yo + p.row->baseline(), str, font); } } // the labels at the top of an environment. // More or less for bibliography } else if (par->isFirstInSequence() && (layout->labeltype == LABEL_TOP_ENVIRONMENT || layout->labeltype == LABEL_BIBLIO || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)) { LyXFont font = getLabelFont(buffer, par); if (!par->getLabelstring().empty()) { string const str = par->getLabelstring(); float spacing_val = 1.0; if (!parparams.spacing().isDefault()) { spacing_val = parparams.spacing().getValue(); } else { spacing_val = buffer->params.spacing.getValue(); } int maxdesc = int(font_metrics::maxDescent(font) * layout->spacing.getValue() * spacing_val + (layout->labelbottomsep * defaultRowHeight())); float x = p.x; if (layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) { x = ((is_rtl ? leftMargin(p.bv, p.row) : p.x) + ww - rightMargin(buffer, p.row)) / 2; x -= font_metrics::width(str, font) / 2; } else if (is_rtl) { x = ww - leftMargin(p.bv, p.row) - font_metrics::width(str, font); } p.pain->text(int(x), p.yo + p.row->baseline() - p.row->ascent_of_text() - maxdesc, str, font); } } if (layout->labeltype == LABEL_BIBLIO && par->bibkey) { LyXFont font = getLayoutFont(buffer, par); float x; if (is_rtl) { x = ww - leftMargin(p.bv, p.row) + font_metrics::width(layout->labelsep, font); } else { x = p.x - font_metrics::width(layout->labelsep, font) - par->bibkey->width(p.bv, font); } par->bibkey->draw(p.bv, font, p.yo + p.row->baseline(), x, p.cleared); } } void LyXText::paintLastRow(DrawRowParams & p) { Paragraph * par = p.row->par(); ParagraphParameters const & parparams = par->params(); int y_bottom = p.row->height() - 1; // the bottom margin if (!p.row->next() && isTopLevel()) y_bottom -= PAPER_MARGIN; int const ww = p.bv->workWidth(); // draw a bottom pagebreak if (parparams.pagebreakBottom()) { y_bottom -= paintPageBreak(_("Page Break (bottom)"), p.yo + y_bottom - 2 * defaultRowHeight(), p); } // draw the additional space if needed: int const height = getLengthMarkerHeight(p.bv, parparams.spaceBottom()); y_bottom -= drawLengthMarker(p, _("Space below"), parparams.spaceBottom(), p.yo + y_bottom - height); Buffer const * buffer = p.bv->buffer(); // draw a bottom line if (parparams.lineBottom()) { LyXFont font(LyXFont::ALL_SANE); int const asc = font_metrics::ascent('x', getFont(buffer, par, max(pos_type(0), par->size() - 1))); y_bottom -= asc; int const w = (inset_owner ? inset_owner->width(p.bv, font) : ww); int const xp = static_cast(inset_owner ? p.xo : 0); int const y = p.yo + y_bottom; p.pain->line(xp, y, xp + w, y, LColor::topline, Painter::line_solid, Painter::line_thick); y_bottom -= asc; } bool const is_rtl = p.row->par()->isRightToLeftPar(p.bv->buffer()->params); int const endlabel = par->getEndLabel(); // draw an endlabel switch (endlabel) { case END_LABEL_BOX: case END_LABEL_FILLED_BOX: { LyXFont const font = getLabelFont(buffer, par); int const size = int(0.75 * font_metrics::maxAscent(font)); int const y = (p.yo + p.row->baseline()) - size; int x = is_rtl ? LEFT_MARGIN : ww - PAPER_MARGIN - size; if (p.row->fill() <= size) x += (size - p.row->fill() + 1) * (is_rtl ? -1 : 1); if (endlabel == END_LABEL_BOX) { p.pain->rectangle(x, y, size, size, LColor::eolmarker); } else { p.pain->fillRectangle(x, y, size, size, LColor::eolmarker); } break; } case END_LABEL_STATIC: { #if 0 LyXFont font(LyXFont::ALL_SANE); font = getLabelFont(buffer, par); #else LyXFont font = getLabelFont(buffer, par); #endif string const & str = par->layout()->endlabelstring(); int const x = is_rtl ? int(p.x) - font_metrics::width(str, font) : ww - rightMargin(buffer, p.row) - p.row->fill(); p.pain->text(x, p.yo + p.row->baseline(), str, font); break; } case END_LABEL_NO_LABEL: break; } } void LyXText::paintRowText(DrawRowParams & p) { Paragraph * par = p.row->par(); Buffer const * buffer = p.bv->buffer(); pos_type const last = p.row->lastPrintablePos(); pos_type main_body = par->beginningOfMainBody(); if (main_body > 0 && (main_body - 1 > last || !par->isLineSeparator(main_body - 1))) { main_body = 0; } LyXLayout_ptr const & layout = par->layout(); bool running_strikeout = false; bool is_struckout = false; float last_strikeout_x = 0.0; pos_type vpos = p.row->pos(); while (vpos <= last) { if (p.x > p.bv->workWidth()) break; pos_type pos = vis2log(vpos); if (p.x + singleWidth(p.bv, par, pos) < 0) { p.x += singleWidth(p.bv, par, pos); ++vpos; continue; } is_struckout = isDeletedText(par, pos); if (is_struckout && !running_strikeout) { running_strikeout = true; last_strikeout_x = p.x; } bool const highly_editable_inset = par->isInset(pos) && isHighlyEditableInset(par->getInset(pos)); // if we reach the end of a struck out range, paint it // we also don't paint across things like tables if (running_strikeout && (highly_editable_inset || !is_struckout)) { int const middle = p.yo + p.row->top_of_text() + ((p.row->baseline() - p.row->top_of_text()) / 2); p.pain->line(int(last_strikeout_x), middle, int(p.x), middle, LColor::strikeout, Painter::line_solid, Painter::line_thin); running_strikeout = false; } if (main_body > 0 && pos == main_body - 1) { int const lwidth = font_metrics::width(layout->labelsep, getLabelFont(buffer, par)); p.x += p.label_hfill + lwidth - singleWidth(p.bv, par, main_body - 1); } if (par->isHfill(pos)) { p.x += 1; int const y0 = p.yo + p.row->baseline(); int const y1 = y0 - defaultRowHeight() / 2; p.pain->line(int(p.x), y1, int(p.x), y0, LColor::added_space); if (p.row->hfillExpansion(pos)) { int const y2 = (y0 + y1) / 2; if (pos >= main_body) { p.pain->line(int(p.x), y2, int(p.x + p.hfill), y2, LColor::added_space, Painter::line_onoffdash); p.x += p.hfill; } else { p.pain->line(int(p.x), y2, int(p.x + p.label_hfill), y2, LColor::added_space, Painter::line_onoffdash); p.x += p.label_hfill; } p.pain->line(int(p.x), y1, int(p.x), y0, LColor::added_space); } p.x += 2; ++vpos; } else if (par->isSeparator(pos)) { p.x += singleWidth(p.bv, par, pos); if (pos >= main_body) p.x += p.separator; ++vpos; } else { if (!draw(p, vpos)) break; } } // if we reach the end of a struck out range, paint it if (running_strikeout) { int const middle = p.yo + p.row->top_of_text() + ((p.row->baseline() - p.row->top_of_text()) / 2); p.pain->line(int(last_strikeout_x), middle, int(p.x), middle, LColor::strikeout, Painter::line_solid, Painter::line_thin); running_strikeout = false; } } void LyXText::getVisibleRow(BufferView * bv, int y_offset, int x_offset, Row * row, int y, bool cleared) { if (row->height() <= 0) { lyxerr << "LYX_ERROR: row.height: " << row->height() << endl; return; } DrawRowParams p; // set up drawing parameters p.bv = bv; p.pain = &bv->painter(); p.row = row; p.xo = x_offset; p.yo = y_offset; prepareToPrint(bv, row, p.x, p.separator, p.hfill, p.label_hfill); if (inset_owner && (p.x < 0)) p.x = 0; p.x += p.xo; p.y = y; p.width = inset_owner ? inset_owner->textWidth(bv, true) : bv->workWidth(); p.cleared = cleared; // start painting // clear to background if necessary p.cleared = paintRowBackground(p); // paint the selection background if (selection.set()) { paintRowSelection(p); } // vertical lines for appendix paintRowAppendix(p); // environment depth brackets paintRowDepthBar(p); // changebar paintChangeBar(p); // draw any stuff wanted for a first row of a paragraph if (!row->pos()) { paintFirstRow(p); } // draw any stuff wanted for the last row of a paragraph if (!row->next() || (row->next()->par() != row->par())) { paintLastRow(p); } // paint text paintRowText(p); } // returns the column near the specified x-coordinate of the row // x is set to the real beginning of this column pos_type 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); pos_type vc = row->pos(); pos_type last = row->lastPrintablePos(); pos_type c = 0; LyXLayout_ptr const & layout = row->par()->layout(); bool left_side = false; pos_type main_body = row->par()->beginningOfMainBody(); float last_tmpx = tmpx; if (main_body > 0 && (main_body - 1 > last || !row->par()->isLineSeparator(main_body - 1))) main_body = 0; // check for empty row if (!row->par()->size()) { x = int(tmpx); return 0; } while (vc <= last && tmpx <= x) { c = vis2log(vc); last_tmpx = tmpx; if (main_body > 0 && c == main_body-1) { tmpx += fill_label_hfill + font_metrics::width(layout->labelsep, getLabelFont(bview->buffer(), row->par())); if (row->par()->isLineSeparator(main_body - 1)) tmpx -= singleWidth(bview, row->par(), main_body-1); } if (row->hfillExpansion(c)) { tmpx += 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 (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, pos_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; } Row * LyXText::getRowNearY(int & y) const { #if 1 // If possible we should optimize this method. (Lgb) Row * tmprow = firstrow; int tmpy = 0; while (tmprow->next() && tmpy + tmprow->height() <= y) { tmpy += tmprow->height(); tmprow = tmprow->next(); } y = tmpy; // return the real y //lyxerr << "returned y = " << y << endl; return tmprow; #else // Search from the current cursor position. Row * tmprow = cursor.row(); int tmpy = cursor.y() - tmprow->baseline(); lyxerr << "cursor.y() = " << tmpy << endl; lyxerr << "tmprow->height() = " << tmprow->height() << endl; lyxerr << "tmprow->baseline() = " << tmprow->baseline() << endl; lyxerr << "first = " << first << endl; lyxerr << "y = " << y << endl; if (y < tmpy) { lyxerr << "up" << endl; do { tmpy -= tmprow->height(); tmprow = tmprow->previous(); } while (tmprow && tmpy - tmprow->height() >= y); } else if (y > tmpy) { lyxerr << "down" << endl; while (tmprow->next() && tmpy + tmprow->height() <= y) { tmpy += tmprow->height(); tmprow = tmprow->next(); } } else { lyxerr << "equal" << endl; } y = tmpy; // return the real y lyxerr << "returned y = " << y << endl; return tmprow; #endif } int LyXText::getDepth() const { return cursor.par()->getDepth(); }