mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-24 10:40:48 +00:00
0424a53b20
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8598 a592a061-630c-0410-9148-cb99ea01b6c8
653 lines
15 KiB
C
653 lines
15 KiB
C
/**
|
||
* \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/font_metrics.h"
|
||
#include "frontends/Painter.h"
|
||
|
||
#include "support/lstrings.h"
|
||
|
||
using lyx::support::contains;
|
||
using lyx::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::clone() 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;
|
||
}
|
||
|
||
// REMOVE IN 0.13
|
||
// Dirty Hack for backward compability. remove in 0.13 (Lgb)
|
||
contents = trim(contents);
|
||
if (!contains(contents, '{') && !contains(contents, '}')) {
|
||
if (contents.length() == 2) {
|
||
string tmp;
|
||
tmp += contents[0];
|
||
tmp += contents[1];
|
||
tmp += "{}";
|
||
contents = tmp;
|
||
} else if (contents.length() == 3) {
|
||
string tmp;
|
||
tmp += contents[0];
|
||
tmp += contents[1];
|
||
tmp += '{';
|
||
tmp += contents[2];
|
||
tmp += '}';
|
||
contents = tmp;
|
||
} else if (contents.length() == 4 && contents[2] == ' ') {
|
||
string tmp;
|
||
tmp += contents[0];
|
||
tmp += contents[1];
|
||
tmp += '{';
|
||
tmp += contents[3];
|
||
tmp += '}';
|
||
contents = tmp;
|
||
} else if (contents.length() == 4 && contents[2] == '\\'
|
||
&& (contents[3] == 'i' || contents[3] == 'j')) {
|
||
string tmp;
|
||
tmp += contents[0];
|
||
tmp += contents[1];
|
||
tmp += '{';
|
||
tmp += contents[2];
|
||
tmp += contents[3];
|
||
tmp += '}';
|
||
contents = tmp;
|
||
}
|
||
}
|
||
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;
|
||
// unknow 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;
|
||
}
|
||
|
||
|
||
void InsetLatexAccent::metrics(MetricsInfo & mi, Dimension & dim) const
|
||
{
|
||
LyXFont & font = mi.base.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 = font_metrics::ascent('a', font);
|
||
else
|
||
dim.asc = font_metrics::ascent(ic, font);
|
||
if (plusasc)
|
||
dim.asc += (font_metrics::maxAscent(font) + 3) / 3;
|
||
|
||
if (ic == ' ')
|
||
dim.des = font_metrics::descent('a', font);
|
||
else
|
||
dim.des = font_metrics::descent(ic, font);
|
||
if (plusdesc)
|
||
dim.des += 3;
|
||
|
||
dim.wid = font_metrics::width(ic, font);
|
||
} else {
|
||
dim.asc = font_metrics::maxAscent(font) + 4;
|
||
dim.des = font_metrics::maxDescent(font) + 4;
|
||
dim.wid = font_metrics::width(contents, font) + 4;
|
||
}
|
||
dim_ = dim;
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::lbearing(LyXFont const & font) const
|
||
{
|
||
return font_metrics::lbearing(ic, font);
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::rbearing(LyXFont const & font) const
|
||
{
|
||
return font_metrics::rbearing(ic, font);
|
||
}
|
||
|
||
|
||
bool InsetLatexAccent::displayISO8859_9(PainterInfo & pi, int x, int y) const
|
||
{
|
||
unsigned char tmpic = ic;
|
||
|
||
switch (modtype) {
|
||
|
||
case CEDILLA: {
|
||
if (ic == 'c') tmpic = 0xe7;
|
||
if (ic == 'C') tmpic = 0xc7;
|
||
if (ic == 's') tmpic = 0xfe;
|
||
if (ic == 'S') tmpic = 0xde;
|
||
break;
|
||
}
|
||
|
||
case BREVE: {
|
||
if (ic == 'g') tmpic = 0xf0;
|
||
if (ic == 'G') tmpic = 0xd0;
|
||
break;
|
||
}
|
||
|
||
case UMLAUT: {
|
||
if (ic == 'o') tmpic = 0xf6;
|
||
if (ic == 'O') tmpic = 0xd6;
|
||
if (ic == 'u') tmpic = 0xfc;
|
||
if (ic == 'U') tmpic = 0xdc;
|
||
break;
|
||
}
|
||
|
||
case DOT:
|
||
if (ic == 'I') tmpic = 0xdd;
|
||
break;
|
||
|
||
case DOT_LESS_I:
|
||
tmpic = 0xfd;
|
||
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 accent) const
|
||
{
|
||
LyXFont const & font = pi.base.font;
|
||
x -= font_metrics::center(accent, font);
|
||
y -= font_metrics::ascent(ic, font);
|
||
y -= font_metrics::descent(accent, font);
|
||
y -= font_metrics::height(accent, font) / 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);
|
||
|
||
if (candisp) {
|
||
int x2 = int(x + (rbearing(font) - lbearing(font)) / 2);
|
||
int hg;
|
||
int y;
|
||
if (plusasc) {
|
||
// mark at the top
|
||
hg = font_metrics::maxDescent(font);
|
||
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 - font_metrics::ascent('i', font);
|
||
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,
|
||
font_metrics::ascent('i', pi.base.font) -
|
||
font_metrics::ascent('x', pi.base.font) - 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, char(0xB4));
|
||
break;
|
||
|
||
case GRAVE:
|
||
drawAccent(pi, x2, baseline, char(0x60));
|
||
break;
|
||
|
||
case MACRON:
|
||
drawAccent(pi, x2, baseline, char(0xAF));
|
||
break;
|
||
|
||
case TILDE:
|
||
drawAccent(pi, x2, baseline, '~');
|
||
break;
|
||
|
||
case UNDERBAR: // underbar 0x5F
|
||
pi.pain.text(x2 - font_metrics::center(0x5F, font), baseline,
|
||
char(0x5F), font);
|
||
break;
|
||
|
||
case CEDILLA:
|
||
pi.pain.text(x2 - font_metrics::center(0xB8, font), baseline,
|
||
char(0xB8), font);
|
||
break;
|
||
|
||
case UNDERDOT:
|
||
pi.pain.text(x2 - font_metrics::center('.', font),
|
||
int(baseline + 1.5 * font_metrics::height('.', font)),
|
||
'.', font);
|
||
break;
|
||
|
||
case DOT:
|
||
drawAccent(pi, x2, baseline, '.');
|
||
break;
|
||
|
||
case CIRCLE:
|
||
drawAccent(pi, x2, baseline, char(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 - font_metrics::center('´', font), baseline, '´');
|
||
drawAccent(pi, x2 + font_metrics::center('´', font), baseline, '´');
|
||
break;
|
||
|
||
case UMLAUT:
|
||
drawAccent(pi, x2, baseline, '"');
|
||
break;
|
||
|
||
case CIRCUMFLEX:
|
||
drawAccent(pi, x2, baseline, 0x5E);
|
||
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);
|
||
pi.pain.text(x + 2, baseline, contents, 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 &, ostream & os,
|
||
OutputParams const &) const
|
||
{
|
||
os << contents;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::plaintext(Buffer const &, ostream & os,
|
||
OutputParams const &) const
|
||
{
|
||
os << contents;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::linuxdoc(Buffer const &, ostream & os,
|
||
OutputParams const &) const
|
||
{
|
||
os << contents;
|
||
return 0;
|
||
}
|
||
|
||
|
||
int InsetLatexAccent::docbook(Buffer const &, ostream & os,
|
||
OutputParams const &) const
|
||
{
|
||
os << contents;
|
||
return 0;
|
||
}
|
||
|
||
|
||
bool InsetLatexAccent::directWrite() const
|
||
{
|
||
return true;
|
||
}
|
||
|
||
|
||
InsetOld::Code InsetLatexAccent::lyxCode() const
|
||
{
|
||
return InsetOld::ACCENT_CODE;
|
||
}
|
||
|
||
|
||
ostream & operator<<(ostream & o, InsetLatexAccent::ACCENT_TYPES at)
|
||
{
|
||
return o << int(at);
|
||
}
|