-/**
- * \file insetlatexaccent.C
- * This file is part of LyX, the document processor.
- * Licence details can be found in the file COPYING.
- *
- * \author Lars Gullik Bjønnes
- *
- * Full author contact details are available in file CREDITS.
- */
-
-#include <config.h>
-
-#include "insetlatexaccent.h"
-
-#include "debug.h"
-#include "language.h"
-#include "LColor.h"
-#include "lyxlex.h"
-#include "lyxrc.h"
-#include "metricsinfo.h"
-
-#include "frontends/FontMetrics.h"
-#include "frontends/Painter.h"
-
-#include "support/lstrings.h"
-
-
-namespace lyx {
-
-using support::contains;
-using support::trim;
-
-using std::endl;
-using std::string;
-using std::auto_ptr;
-using std::ostream;
-
-
-/* LatexAccent. Proper handling of accented characters */
-/* This part is done by Ivan Schreter, schreter@ccsun.tuke.sk */
-/* Later modified by Lars G. Bjønnes, larsbj@lyx.org */
-
-InsetLatexAccent::InsetLatexAccent()
- : candisp(false)
-{}
-
-
-InsetLatexAccent::InsetLatexAccent(string const & str)
- : contents(str)
-{
- checkContents();
-}
-
-
-auto_ptr<InsetBase> InsetLatexAccent::doClone() const
-{
- return auto_ptr<InsetBase>(new InsetLatexAccent(contents));
-}
-
-
-void InsetLatexAccent::checkContents()
- // check, if we know the modifier and can display it ok on screen
-{
- candisp = false;
-
- if (contents.empty() || contents.length() < 2) {
- lyxerr[Debug::KEY] << "Cannot decode: " << contents << endl;
- return;
- }
-
- contents = trim(contents);
- if (contents[0] != '\\') { // demand that first char is a '\\'
- lyxerr[Debug::KEY] << "Cannot decode: " << contents << endl;
- return;
- }
-
- lyxerr[Debug::KEY] << "Decode: " << contents << endl;
-
- remdot = false;
- plusasc = false;
- plusdesc = false;
-
- switch (contents[1]) { // second char should be one of these
- case '\'': // acute
- modtype = ACUTE; // acute
- plusasc = true; // at the top of character
- break;
- case '`': // grave
- modtype = GRAVE; // grave
- plusasc = true; // at the top
- break;
- case '=': // macron
- modtype = MACRON; // macron
- plusasc = true; // at the top
- break;
- case '~': // tilde
- modtype = TILDE; // tilde
- plusasc = true; // at the top
- break;
- case 'b': // underbar
- modtype = UNDERBAR; // underbar
- plusdesc = true; // at the bottom
- break;
- case 'c': // cedilla
- modtype = CEDILLA; // cedilla
- plusdesc = true; // at the bottom
- break;
- case 'd': // underdot
- modtype = UNDERDOT; // underdot
- plusdesc = true; // at the bottom
- break;
- case 'r': // circle
- modtype = CIRCLE; // circle
- plusasc = true; // at the top
- break;
- case 't': // tie
- modtype = TIE; // tie
- plusasc = true; // at the top
- break;
- case 'u': // breve
- modtype = BREVE; // breve
- plusasc = true; // at the top
- break;
- case 'v': // caron
- modtype = CARON; // caron
- plusasc = true; // at the top
- break;
- case 'q': // special caron
- modtype = SPECIAL_CARON; // special caron
- plusasc = true; // at the top
- break;
- case 'H': // hungarian umlaut
- modtype = HUNGARIAN_UMLAUT; // hungarian umlaut
- plusasc = true; // at the top
- break;
- case '"': // umlaut
- modtype = UMLAUT; // umlaut
- plusasc = true; // at the top
- break;
- case '.': // dot
- modtype = DOT; // dot
- plusasc = true; // at the top
- break;
- case '^': // circumflex
- modtype = CIRCUMFLEX; // circumflex
- plusasc = true; // at the top
- break;
- case 'k': // ogonek
- modtype = OGONEK; // ogonek
- plusdesc = true;
- break;
- case 'i': // dot-less-i
- modtype = DOT_LESS_I; // dot-less-i
- plusasc = true; // at the top (not really needed)
- remdot = true;
- break;
- case 'j': // dot-less-j
- modtype = DOT_LESS_J; // dot-less-j
- plusasc = true; // at the top (not really needed)
- remdot = true;
- break;
- case 'l': // lslash
- modtype = lSLASH;
- plusasc = true; // at the top (not really needed)
- break;
- case 'L': // lslash
- modtype = LSLASH;
- plusasc = true; // at the top (not really needed)
- break;
- default:
- lyxerr[Debug::KEY] << "Default" << endl;
- // unknown accent (or something else)
- return;
- }
-
- // we demand that third char is a '{' (Lgb)
- if (contents[2] != '{') return;
-
- // special clause for \i{}, \j{} \l{} and \L{}
- if ((modtype == DOT_LESS_I || modtype == DOT_LESS_J
- || modtype == lSLASH || modtype == LSLASH)
- && contents[3] == '}') {
- switch (modtype) {
- case DOT_LESS_I: ic = 'i'; break;
- case DOT_LESS_J: ic = 'j'; break;
- case lSLASH: ic = 'l'; break;
- case LSLASH: ic = 'L'; break;
- default:
- // if this happens something is really wrong
- lyxerr << "InsetLaTexAccent: weird error." << endl;
- break;
- }
- //ic = (modtype == DOT_LESS_J ? 'j' : 'i');
- lyxerr[Debug::KEY] << "Contents: [" << contents << ']'
- << ", ic: " << ic
- << ", top: " << plusasc
- << ", bot: " << plusdesc
- << ", dot: " << remdot
- << ", mod: " << modtype << endl;
- // Special case for space
- } else if (contents[3] == '}') {
- ic = ' ';
- } else {
- int i = 3;
-
- // now get the char
- ic = contents[3]; // i will always be 3 here
-
- // ic should now be a alfa-char or '\\'
- if (ic == '\\') {
- ic = contents[++i]; // will only allow \<foo>{\i} and \<foo>{\j}
- if (ic == 'i' || ic == 'j')
- remdot = true;
- else
- return;
- } else if ((ic == 'i'|| ic == 'j') && contents[4] == '}') {
- // Do a rewrite: \<foo>{i} --> \<foo>{\i}
- string temp = contents;
- temp.erase(3, string::npos);
- temp += '\\';
- temp += char(ic);
- for (string::size_type j = 4;
- j < contents.length(); ++j)
- temp+= contents[j];
- contents= temp;
- ++i;
- remdot = true;
- }
-
- // demand a '}' at the end
- if (contents[++i] != '}' && contents[++i]) return;
-
- // fine, the char is properly decoded now (hopefully)
- lyxerr[Debug::KEY] << "Contents: [" << contents << ']'
- << ", ic: " << ic
- << ", top: " << plusasc
- << ", bot: " << plusdesc
- << ", dot: " << remdot
- << ", mod: " << modtype << endl;
- }
- candisp = true;
-}
-
-
-bool InsetLatexAccent::metrics(MetricsInfo & mi, Dimension & dim) const
-{
- LyXFont & font = mi.base.font;
- frontend::FontMetrics const & fm = theFontMetrics(font);
-
- // This function is a bit too simplistic and is just a
- // "try to make a fit for all accents" approach, to
- // make it better we need to know what kind of accent is
- // used and add to max based on that.
- if (candisp) {
- if (ic == ' ')
- dim.asc = fm.ascent('a');
- else
- dim.asc = fm.ascent(ic);
- if (plusasc)
- dim.asc += (fm.maxAscent() + 3) / 3;
-
- if (ic == ' ')
- dim.des = fm.descent('a');
- else
- dim.des = fm.descent(ic);
- if (plusdesc)
- dim.des += 3;
-
- dim.wid = fm.width(ic);
- } else {
- dim.asc = fm.maxAscent() + 4;
- dim.des = fm.maxDescent() + 4;
- docstring dcon(contents.begin(), contents.end());
- dim.wid = fm.width(dcon) + 4;
- }
- bool const changed = dim_ != dim;
- dim_ = dim;
- return changed;
-}
-
-
-bool InsetLatexAccent::displayISO8859_9(PainterInfo & pi, int x, int y) const
-{
- unsigned char tmpic = ic;
-
- switch (modtype) {
-
- case CEDILLA: {
- if (ic == 'c') tmpic = '\xe7';
- if (ic == 'C') tmpic = '\xc7';
- if (ic == 's') tmpic = '\xfe';
- if (ic == 'S') tmpic = '\xde';
- break;
- }
-
- case BREVE: {
- if (ic == 'g') tmpic = '\xf0';
- if (ic == 'G') tmpic = '\xd0';
- break;
- }
-
- case UMLAUT: {
- if (ic == 'o') tmpic = '\xf6';
- if (ic == 'O') tmpic = '\xd6';
- if (ic == 'u') tmpic = '\xfc';
- if (ic == 'U') tmpic = '\xdc';
- break;
- }
-
- case DOT:
- if (ic == 'I') tmpic = '\xdd';
- break;
-
- case DOT_LESS_I:
- tmpic = '\xfd';
- break;
-
- default:
- return false;
- }
-
- if (tmpic == ic)
- return false;
-
- pi.pain.text(x, y, char(tmpic), pi.base.font);
- return true;
-}
-
-
-void InsetLatexAccent::drawAccent(PainterInfo const & pi, int x, int y,
- char_type accent) const
-{
- LyXFont const & font = pi.base.font;
- frontend::FontMetrics const & fm = theFontMetrics(font);
-
- x -= fm.center(accent);
- y -= fm.ascent(ic);
- y -= fm.descent(accent);
- y -= fm.height(accent) / 2;
- pi.pain.text(x, y, accent, font);
-}
-
-
-void InsetLatexAccent::draw(PainterInfo & pi, int x, int baseline) const
-{
- if (lyxrc.font_norm_type == LyXRC::ISO_8859_9)
- if (displayISO8859_9(pi, x, baseline))
- return;
-
- // All the manually drawn accents in this function could use an
- // overhaul. Different ways of drawing (what metrics to use)
- // should also be considered.
-
- LyXFont font = pi.base.font;
- if (lyxrc.font_norm_type == LyXRC::ISO_10646_1)
- font.setLanguage(english_language);
-
- frontend::FontMetrics const & fm = theFontMetrics(font);
-
- if (candisp) {
- int x2 = int(x + (fm.rbearing(ic) - fm.lbearing(ic)) / 2);
- int hg;
- int y;
- if (plusasc) {
- // mark at the top
- hg = fm.maxDescent();
- y = baseline - dim_.asc;
- if (font.shape() == LyXFont::ITALIC_SHAPE)
- x2 += int(0.8 * hg); // italic
- } else {
- // at the bottom
- hg = dim_.des;
- y = baseline;
- }
-
- double hg35 = hg * 0.6;
-
- // display with proper accent mark
- // first the letter
- pi.pain.text(x, baseline, ic, font);
-
- if (remdot) {
- int tmpvar = baseline - fm.ascent('i');
- int tmpx = 0;
- if (font.shape() == LyXFont::ITALIC_SHAPE)
- tmpx += int(0.8 * hg); // italic
- lyxerr[Debug::KEY] << "Removing dot." << endl;
- // remove the dot first
- pi.pain.fillRectangle(x + tmpx, tmpvar, dim_.wid,
- fm.ascent('i') -
- fm.ascent('x') - 1,
- backgroundColor());
- // the five lines below is a simple hack to
- // make the display of accent 'i' and 'j'
- // better. It makes the accent be written
- // closer to the top of the dot-less 'i' or 'j'.
- char tmpic = ic; // store the ic when we
- ic = 'x'; // calculates the ascent of
-#ifdef WITH_WARNINGS
-#warning metrics?
-#endif
- int asc = ascent(); // the dot-less version (here: 'x')
- ic = tmpic; // set the orig ic back
- y = baseline - asc; // update to new y coord.
- }
-
- // now the rest - draw within (x, y, x + wid, y + hg)
- switch (modtype) {
- case ACUTE:
- //drawAccent(pi, x2, baseline, '\xB4');
- drawAccent(pi, x2, baseline, 0xB4);
- break;
-
- case GRAVE:
- //drawAccent(pi, x2, baseline, '\x60');
- drawAccent(pi, x2, baseline, 0x60);
- break;
-
- case MACRON:
- //drawAccent(pi, x2, baseline, '\xAF');
- drawAccent(pi, x2, baseline, 0xAF);
- break;
-
- case TILDE:
- drawAccent(pi, x2, baseline, '~');
- break;
-
- case UNDERBAR: {
- char_type const underbar = 0x5F; //('\x5F');
- pi.pain.text(x2 - fm.center(underbar),
- baseline, underbar, font);
- break;
- }
-
- case CEDILLA: {
- char_type const cedilla = 0xB8; //('\xB8');
- pi.pain.text(x2 - fm.center(cedilla),
- baseline, cedilla, font);
- break;
- }
-
- case UNDERDOT:
- pi.pain.text(x2 - fm.center('.'),
- int(baseline + 1.5 * fm.height('.')),
- '.', font);
- break;
-
- case DOT:
- drawAccent(pi, x2, baseline, '.');
- break;
-
- case CIRCLE:
- //drawAccent(pi, x2, baseline, '\xB0');
- drawAccent(pi, x2, baseline, 0xB0);
- break;
-
- case TIE:
- pi.pain.arc(int(x2 + hg35), y + hg / 2, 2 * hg, hg, 0, 360 * 32,
- LColor::foreground);
- break;
-
- case BREVE:
- pi.pain.arc(int(x2 - hg / 2), y, hg, hg, 0, -360*32,
- LColor::foreground);
- break;
-
- case CARON: {
- int xp[3], yp[3];
- xp[0] = int(x2 - hg35); yp[0] = int(y + hg35);
- xp[1] = int(x2); yp[1] = int(y + hg);
- xp[2] = int(x2 + hg35); yp[2] = int(y + hg35);
- pi.pain.lines(xp, yp, 3, LColor::foreground);
- break;
- }
-
- case SPECIAL_CARON: {
- switch (ic) {
- case 'L': dim_.wid = int(4.0 * dim_.wid / 5.0); break;
- case 't': y -= int(hg35 / 2.0); break;
- }
- int xp[3], yp[3];
- xp[0] = int(x + dim_.wid);
- yp[0] = int(y + hg35 + hg);
-
- xp[1] = int(x + dim_.wid + (hg35 / 2.0));
- yp[1] = int(y + hg + (hg35 / 2.0));
-
- xp[2] = int(x + dim_.wid + (hg35 / 2.0));
- yp[2] = y + int(hg);
-
- pi.pain.lines(xp, yp, 3, LColor::foreground);
- break;
- }
-
- case HUNGARIAN_UMLAUT:
- drawAccent(pi, x2, baseline, 0x02DD);
- break;
-
- case UMLAUT:
- drawAccent(pi, x2, baseline, '"');
- break;
-
- case CIRCUMFLEX:
- drawAccent(pi, x2, baseline, '\x5E');
- break;
-
- case OGONEK: {
- // this does probably not look like an ogonek, so
- // it should certainly be refined
- int xp[4], yp[4];
-
- xp[0] = x2;
- yp[0] = y;
-
- xp[1] = x2;
- yp[1] = y + int(hg35);
-
- xp[2] = int(x2 - hg35);
- yp[2] = y + hg / 2;
-
- xp[3] = x2 + hg / 4;
- yp[3] = y + int(hg);
-
- pi.pain.lines(xp, yp, 4, LColor::foreground);
- break;
- }
-
- case lSLASH:
- case LSLASH: {
- int xp[2], yp[2];
-
- xp[0] = x;
- yp[0] = y + int(3 * hg);
-
- xp[1] = int(x + dim_.wid * 0.75);
- yp[1] = y + int(hg);
-
- pi.pain.lines(xp, yp, 2, LColor::foreground);
- break;
- }
-
- case DOT_LESS_I: // dotless-i
- case DOT_LESS_J: // dotless-j
- // nothing to do for these
- break;
- }
-
- } else {
- pi.pain.fillRectangle(x + 1,
- baseline - dim_.asc + 1, dim_.wid - 2,
- dim_.asc + dim_.des - 2,
- backgroundColor());
- pi.pain.rectangle(x + 1, baseline - dim_.asc + 1,
- dim_.wid - 2, dim_.asc + dim_.des - 2,
- LColor::foreground);
- docstring dcon(contents.begin(), contents.end());
- pi.pain.text(x + 2, baseline, dcon, font);
- }
-}
-
-
-void InsetLatexAccent::write(Buffer const &, ostream & os) const
-{
- os << "\\i " << contents << "\n";
-}
-
-
-void InsetLatexAccent::read(Buffer const &, LyXLex & lex)
-{
- lex.eatLine();
- contents = lex.getString();
- checkContents();
-}
-
-
-int InsetLatexAccent::latex(Buffer const &, odocstream & os,
- OutputParams const &) const
-{
- os << from_ascii(contents);
- return 0;
-}
-
-
-int InsetLatexAccent::plaintext(Buffer const &, odocstream & os,
- OutputParams const &) const
-{
- os << from_ascii(contents);
- return 0;
-}
-
-
-int InsetLatexAccent::docbook(Buffer const &, odocstream & os,
- OutputParams const &) const
-{
- // FIXME UNICODE
- os << from_ascii(contents);
- return 0;
-}
-
-
-int InsetLatexAccent::textString(Buffer const & buf, odocstream & os,
- OutputParams const & op) const
-{
- return plaintext(buf, os, op);
-}
-
-
-bool InsetLatexAccent::directWrite() const
-{
- return true;
-}
-
-
-InsetBase::Code InsetLatexAccent::lyxCode() const
-{
- return InsetBase::ACCENT_CODE;
-}
-
-
-ostream & operator<<(ostream & o, InsetLatexAccent::ACCENT_TYPES at)
-{
- return o << int(at);
-}
-
-
-} // namespace lyx
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