anne/lyx_mirror
1
0
Fork 0
mirror of https://git.lyx.org/repos/lyx.git synced 2024-11-11 05:33:33 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
e80ad470cb
lyx_mirror/src/insets/insetlatexaccent.C
Jürgen Vigna b744c6ed9f Lot's of updates for new update handling of text-insets 
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@831 a592a061-630c-0410-9148-cb99ea01b6c8
2000-06-23 15:02:46 +00:00

682 lines
18 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright 1995 Matthias Ettrich
* Copyright 1995-2000 The LyX Team.
*
* ====================================================== */
#include <config.h>
#ifdef __GNUG__
#pragma implementation
#endif
#include "insetlatexaccent.h"
#include "debug.h"
#include "lyxrc.h"
#include "support/lstrings.h"
#include "BufferView.h"
#include "Painter.h"
#include "font.h"
using std::ostream;
using std::endl;
/* 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 & string)
: contents(string)
{
checkContents();
}
void InsetLatexAccent::checkContents()
// check, if we know the modifier and can display it ok on screen
{
candisp = false;
if (contents.empty() || contents.length() < 2) return;
// REMOVE IN 0.13
// Dirty Hack for backward compability. remove in 0.13 (Lgb)
contents = frontStrip(strip(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] != '\\') return; // demand that first char is a '\\'
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;
}
int InsetLatexAccent::ascent(Painter &, LyXFont const & font) const
{
// This function is a bit too simplistix 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.
int max;
if (candisp) {
if (ic == ' ')
max = lyxfont::ascent('a', font);
else
max = lyxfont::ascent(ic, font);
if (plusasc)
max += (lyxfont::maxAscent(font) + 3) / 3;
} else
max = lyxfont::maxAscent(font) + 4;
return max;
}
int InsetLatexAccent::descent(Painter &, LyXFont const & font) const
{
int max;
if (candisp) {
if (ic == ' ')
max = lyxfont::descent('a', font);
else
max = lyxfont::descent(ic, font);
if (plusdesc)
max += 3;
} else
max = lyxfont::maxDescent(font) + 4;
return max;
}
int InsetLatexAccent::width(Painter &, LyXFont const & font) const
{
if (candisp)
return lyxfont::width(ic, font);
else
return lyxfont::width(contents, font) + 4;
}
int InsetLatexAccent::Lbearing(LyXFont const & font) const
{
return lyxfont::lbearing(ic, font);
}
int InsetLatexAccent::Rbearing(LyXFont const & font) const
{
return lyxfont::rbearing(ic, font);
}
bool InsetLatexAccent::DisplayISO8859_9(Painter & pain, LyXFont const & font,
int baseline,
float & x) 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) {
char ch = char(tmpic);
pain.text(int(x), baseline, ch, font);
x += width(pain, font);
return true;
}
else
return false;
}
void InsetLatexAccent::draw(BufferView * bv, LyXFont const & font,
int baseline, float & x, bool) const
{
Painter & pain = bv->painter();
if (lyxrc.font_norm == "iso8859-9")
if (DisplayISO8859_9(pain, font, baseline, x))
return;
/* draw it! */
// All the manually drawn accents in this function could use an
// overhaul. Different ways of drawing (what metrics to use)
// should also be considered.
if (candisp) {
int asc = ascent(pain, font);
int desc = descent(pain, font);
int wid = width(pain, font);
float x2 = x + (Rbearing(font) - Lbearing(font)) / 2.0;
float hg;
int y;
if (plusasc) {
// mark at the top
hg = lyxfont::maxDescent(font);
y = baseline - asc;
if (font.shape() == LyXFont::ITALIC_SHAPE)
x2 += (4.0 * hg) / 5.0; // italic
} else {
// at the bottom
hg = desc;
y = baseline;
}
float hg35 = float(hg * 3.0) / 5.0;
// display with proper accent mark
// first the letter
pain.text(int(x), baseline, ic, font);
if (remdot) {
int tmpvar = baseline - lyxfont::ascent('i', font);
float tmpx = 0;
if (font.shape() == LyXFont::ITALIC_SHAPE)
tmpx += (8.0 * hg) / 10.0; // italic
lyxerr[Debug::KEY] << "Removing dot." << endl;
// remove the dot first
pain.fillRectangle(int(x + tmpx), tmpvar, wid,
lyxfont::ascent('i', font) -
lyxfont::ascent('x', font) - 1,
LColor::background);
// 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
asc = ascent(pain, font); // 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: // acute 0xB4
{
pain.text(int(x2 - (lyxfont::rbearing(0xB4, font) - lyxfont::lbearing(0xB4, font)) / 2),
baseline - lyxfont::ascent(ic, font) - lyxfont::descent(0xB4, font) - (lyxfont::ascent(0xB4, font) + lyxfont::descent(0xB4, font)) / 2,
char(0xB4), font);
break;
}
case GRAVE: // grave 0x60
{
pain.text(int(x2 - (lyxfont::rbearing(0x60, font) - lyxfont::lbearing(0x60, font)) / 2),
int(baseline - lyxfont::ascent(ic, font) - lyxfont::descent(0x60, font) - (lyxfont::ascent(0x60, font) + lyxfont::descent(0x60, font)) / 2.0),
char(0x60), font);
break;
}
case MACRON: // macron
{
pain.text(int(x2 - (lyxfont::rbearing(0xAF, font) - lyxfont::lbearing(0xAF, font)) / 2),
baseline - lyxfont::ascent(ic, font) - lyxfont::descent(0xAF, font) - (lyxfont::ascent(0xAF, font) + lyxfont::descent(0xAF, font)),
char(0xAF), font);
break;
}
case TILDE: // tilde
{
pain.text(int(x2 - (lyxfont::rbearing('~', font) - lyxfont::lbearing('~', font)) / 2),
baseline - lyxfont::ascent(ic, font) - lyxfont::descent('~', font) - (lyxfont::ascent('~', font) + lyxfont::descent('~', font)) / 2,
'~', font);
break;
}
case UNDERBAR: // underbar 0x5F
{
pain.text(int(x2 - (lyxfont::rbearing(0x5F, font) - lyxfont::lbearing(0x5F, font)) / 2), baseline,
char(0x5F), font);
break;
}
case CEDILLA: // cedilla
{
pain.text(int(x2 - (lyxfont::rbearing(0xB8, font) - lyxfont::lbearing(0xB8, font)) / 2), baseline,
char(0xB8), font);
break;
}
case UNDERDOT: // underdot
{
pain.text(int(x2 - (lyxfont::rbearing('.', font) - lyxfont::lbearing('.', font)) / 2.0),
int(baseline + 3.0 / 2.0 * (lyxfont::ascent('.', font) + lyxfont::descent('.', font))),
'.', font);
break;
}
case DOT: // dot
{
pain.text(int(x2 - (lyxfont::rbearing('.', font) - lyxfont::lbearing('.', font)) / 2.0),
baseline - lyxfont::ascent(ic, font) - lyxfont::descent('.', font) - (lyxfont::ascent('.', font) + lyxfont::descent('.', font)) / 2,
'.', font);
break;
}
case CIRCLE: // circle
{
LyXFont tmpf(font);
tmpf.decSize().decSize();
pain.text(int(x2 - (lyxfont::rbearing(0xB0, tmpf) - lyxfont::lbearing(0xB0, tmpf)) / 2.0),
int(baseline - lyxfont::ascent(ic, font) - lyxfont::descent(0xB0, tmpf) - (lyxfont::ascent(0xB0, tmpf) + lyxfont::descent(0xB0, tmpf)) / 3.0),
char(0xB0), tmpf);
break;
}
case TIE: // tie
{
pain.arc(int(x2 + hg35), int(y + hg / 2.0),
int(2 * hg), int(hg), 0, 360 * 32);
break;
}
case BREVE: // breve
{
pain.arc(int(x2 - (hg / 2.0)), y,
int(hg), int(hg), 0, -360*32);
break;
}
case CARON: // 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);
pain.lines(xp, yp, 3);
break;
}
case SPECIAL_CARON: // special caron
{
switch (ic) {
case 'L': wid = int(4.0 * wid / 5.0); break;
case 't': y -= int(hg35 / 2.0); break;
}
int xp[3], yp[3];
xp[0] = int(x + wid);
yp[0] = int(y + hg35 + hg);
xp[1] = int(x + wid + (hg35 / 2.0));
yp[1] = int(y + hg + (hg35 / 2.0));
xp[2] = int(x + wid + (hg35 / 2.0));
yp[2] = y + int(hg);
pain.lines(xp, yp, 3);
break;
}
case HUNGARIAN_UMLAUT: // hung. umlaut
{
pain.text(int(x2 - (lyxfont::rbearing('´', font) - lyxfont::lbearing('´', font))),
baseline - lyxfont::ascent(ic, font) - lyxfont::descent('´', font) - (lyxfont::ascent('´', font) + lyxfont::descent('´', font)) / 2,
'´', font);
pain.text(int(x2),
baseline - lyxfont::ascent(ic, font) - lyxfont::descent('´', font) - (lyxfont::ascent('´', font) + lyxfont::descent('´', font)) / 2,
'´', font);
break;
}
case UMLAUT: // umlaut
{
pain.text(int(x2 - (lyxfont::rbearing('¨', font) - lyxfont::lbearing('¨', font)) / 2),
baseline - lyxfont::ascent(ic, font) - lyxfont::descent('¨', font) - ( lyxfont::ascent('¨', font) + lyxfont::descent('¨', font)) / 2,
'¨', font);
break;
}
case CIRCUMFLEX: // circumflex
{
LyXFont tmpf(font);
tmpf.decSize().decSize().decSize();
pain.text(int(x2 - (lyxfont::rbearing(0x5E, tmpf) - lyxfont::lbearing(0x5E, tmpf)) / 2),
int(baseline - lyxfont::ascent(ic, font) - lyxfont::descent(0x5E, tmpf) - (lyxfont::ascent(0x5E, tmpf) + lyxfont::descent(0x5E, tmpf)) / 3.0),
char(0x5E), tmpf);
break;
}
case OGONEK: // ogonek
{
// this does probably not look like an ogonek, so
// it should certainly be refined
int xp[4], yp[4];
xp[0] = int(x2);
yp[0] = y;
xp[1] = int(x2);
yp[1] = y + int(hg35);
xp[2] = int(x2 - hg35);
yp[2] = y + int(hg / 2.0);
xp[3] = int(x2 + hg / 4.0);
yp[3] = y + int(hg);
pain.lines(xp, yp, 4);
break;
}
case lSLASH:
case LSLASH:
{
int xp[2], yp[2];
xp[0] = int(x);
yp[0] = y + int(3.0 * hg);
xp[1] = int(x + float(wid) * 0.75);
yp[1] = y + int(hg);
pain.lines(xp, yp, 2);
break;
}
case DOT_LESS_I: // dotless-i
case DOT_LESS_J: // dotless-j
{
// nothing to do for these
break;
}
}
} else {
pain.fillRectangle(int(x + 1),
baseline - ascent(pain, font) + 1,
width(pain, font) - 2,
ascent(pain, font)
+ descent(pain, font) - 2);
pain.rectangle(int(x + 1), baseline - ascent(pain, font) + 1,
width(pain, font) - 2,
ascent(pain, font) + descent(pain, font) - 2);
pain.text(int(x + 2), baseline, contents, font);
}
x += width(pain, 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,
bool /*fragile*/, bool/*fs*/) const
{
os << contents;
return 0;
}
int InsetLatexAccent::Ascii(Buffer const *, ostream & os) const
{
os << contents;
return 0;
}
int InsetLatexAccent::Linuxdoc(Buffer const *, ostream & os) const
{
os << contents;
return 0;
}
int InsetLatexAccent::DocBook(Buffer const *, ostream & os) const
{
os << contents;
return 0;
}
bool InsetLatexAccent::Deletable() const
{
return true;
}
bool InsetLatexAccent::DirectWrite() const
{
return true;
}
Inset * InsetLatexAccent::Clone() const
{
return new InsetLatexAccent(contents);
}
Inset::Code InsetLatexAccent::LyxCode() const
{
return Inset::ACCENT_CODE;
}
ostream & operator<<(ostream & o, InsetLatexAccent::ACCENT_TYPES at)
{
return o << int(at);
}
Reference in New Issue View Git Blame Copy Permalink