-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