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Remove broken multibyte stuff from GTK frontend, make single-byte

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stuff work properly.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13236 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
John Spray 2006-02-14 14:46:22 +00:00
parent 7bb1fa55ac
commit 29e7776c34
5 changed files with 48 additions and 176 deletions
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58
src/frontends/gtk/GPainter.C
View File

@ -29,7 +29,6 @@
#include "LColor.h"
#include "xftFontLoader.h"
#include "frontends/font_metrics.h"
#include "codeConvert.h"
#include "support/lstrings.h"
@ -208,53 +207,40 @@ void GPainter::image(int x, int y, int w, int h,
}
void GPainter::text(int x, int y, std::string const & s, LyXFont const & f)
{
size_t size = s.length() + 1;
boost::scoped_array<wchar_t> wcs(new wchar_t[size]);
size = mbstowcs(wcs.get(), s.c_str(), size);
return text(x, y, wcs.get(), size, f);
}
void GPainter::text(int x, int y, char c, LyXFont const & f)
{
char s[2] = { c, '\0' };
text(x, y, s, 1, f);
}
inline XftFont * getXftFont(LyXFont const & f)
{
return fontLoader.load(f.family(), f.series(),
f.realShape(), f.size());
f.realShape(), f.size());
}
void GPainter::text(int x, int y, wchar_t const * s, int ls, LyXFont const & f)
// ENCODING: we assume we've got 8-bit string in whatever format Xft
// wants. We should be finding out what the backend's giving us and
// then converting it before feeding it to Xft using XftDrawStringUtf8
void GPainter::text(int x, int y, char const * s, size_t ls, LyXFont const & f)
{
XftFont * font = getXftFont(f);
XftColor * xftClr = owner_.getColorHandler().
getXftColor(f.realColor());
XftDraw * draw = owner_.getXftDraw();
if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
XftDrawString32(draw, xftClr, font, x, y,
wcsToXftChar32StrFast(s), ls);
XftDrawString8(draw, xftClr, font, x, y,
reinterpret_cast<XftChar8 *>(const_cast<char *>(s)), ls);
} else {
LyXFont smallfont(f);
smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
XftFont * fontS = getXftFont(smallfont);
wchar_t c;
char c;
int tmpx = x;
for (int i = 0; i < ls; ++i) {
c = lyx::support::uppercase(s[i]);
if (c != s[i]) {
XftDrawString32(draw, xftClr, fontS, tmpx, y,
wcsToXftChar32StrFast(&c), 1);
XftDrawString8(draw, xftClr, fontS, tmpx, y,
reinterpret_cast<XftChar8 *>(const_cast<char *>(&c)), 1);
tmpx += font_metrics::width(c, smallfont);
} else {
XftDrawString32(draw, xftClr, font, tmpx, y,
wcsToXftChar32StrFast(&c), 1);
XftDrawString8(draw, xftClr, font, tmpx, y,
reinterpret_cast<XftChar8 *>(const_cast<char *>(&c)), 1);
tmpx += font_metrics::width(c, f);
}
}
@ -264,19 +250,17 @@ void GPainter::text(int x, int y, wchar_t const * s, int ls, LyXFont const & f)
}
void GPainter::text(int x, int y, char const * s, size_t ls, LyXFont const & f)
void GPainter::text(int x, int y, std::string const & s, LyXFont const & f)
{
boost::scoped_array<wchar_t> wcs(new wchar_t[ls + 1]);
size_t len;
if (fontLoader.isSpecial(f)) {
unsigned char const * us =
reinterpret_cast<unsigned char const *>(s);
len = ls;
std::copy(us, us + ls, wcs.get());
} else
len = mbstowcs(wcs.get(), s, ls + 1);
text(x, y, wcs.get(), len, f);
text (x, y, s.c_str(), s.size(), f);
}
void GPainter::text(int x, int y, char c, LyXFont const & f)
{
text (x, y, &c, 1, f);
}
} // namespace frontend
} // namespace lyx

14
src/frontends/gtk/GPainter.h
View File

@ -107,26 +107,18 @@ public:
virtual void text(int x, int y,
std::string const & str, LyXFont const & f);
/** Draw a string at position x, y (y is the baseline)
* This is just for fast drawing
*/
/// draw a string at position x, y (y is the baseline)
virtual void text(int x, int y,
char const * str, size_t l,
LyXFont const & f);
virtual void text(int x, int y, wchar_t const * str, int l,
LyXFont const & f);
/// draw a char at position x, y (y is the baseline)
virtual void text(int x, int y,
char c, LyXFont const & f);
/// draw a wide string at position x, y
void text(int x, int y,
XChar2b const * str, size_t l,
LyXFont const & f);
void start();
private:
/// our owner who we paint upon

1
src/frontends/gtk/Makefile.am
View File

@ -133,7 +133,6 @@ libgtk_la_SOURCES = \
LyXKeySymFactory.C \
LyXScreenFactory.C \
WorkAreaFactory.C \
codeConvert.h \
ghelpers.C \
ghelpers.h \
io_callback.C \

36
src/frontends/gtk/codeConvert.h
View File

@ -1,36 +0,0 @@
// -*- C++ -*-
/**
* \file codeConvert.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Huang Ying
*
* Full author contact details are available in file CREDITS.
*/
#ifndef CODE_CONVERT_H
#define CODE_CONVERT_H
#include <X11/Xft/Xft.h>
inline XftChar32 * wcsToXftChar32StrFast(wchar_t * wcs)
{
return reinterpret_cast<XftChar32 *>(wcs);
}
inline XftChar32 * wcsToXftChar32StrFast(wchar_t const * wcs)
{
return reinterpret_cast<XftChar32 *>(const_cast<wchar_t *>(wcs));
}
inline XftChar32 wcToXftChar32(wchar_t wc)
{
return static_cast<XftChar32>(wc);
}
#endif

115
src/frontends/gtk/xftFontMetrics.C
View File

@ -24,7 +24,6 @@
#include "lyxrc.h"
#include "encoding.h"
#include "language.h"
#include "codeConvert.h"
#include "support/lstrings.h"
#include "debug.h"
@ -77,17 +76,6 @@ inline int XGlyphLogWidth(XGlyphInfo const & info)
return info.xOff;
}
wchar_t C2WC(char ch)
{
wchar_t wcs[2] = {0, 0};
char mbs[2] = {0, 0};
mbs[0] = ch;
mbstowcs(wcs, mbs, 2);
return wcs[0];
}
} // namespace anon
@ -108,88 +96,61 @@ int maxDescent(LyXFont const & f)
}
int ascent(wchar_t c,LyXFont const & f)
int ascent(char c,LyXFont const & f)
{
XftFont * font = getXftFont(f);
XGlyphInfo glyph;
XftTextExtents32(getDisplay(), font,
wcsToXftChar32StrFast(&c),
XftTextExtents8(getDisplay(), font,
reinterpret_cast<XftChar8 *>(&c),
1,
&glyph);
return XGlyphAscent(glyph);
}
int ascent(char c, LyXFont const & f)
{
return ascent(C2WC(c), f);
}
int descent(wchar_t c,LyXFont const & f)
int descent(char c,LyXFont const & f)
{
XftFont * font = getXftFont(f);
XGlyphInfo glyph;
XftTextExtents32(getDisplay(), font,
wcsToXftChar32StrFast(&c),
XftTextExtents8(getDisplay(), font,
reinterpret_cast<XftChar8 *>(&c),
1,
&glyph);
return XGlyphDescent(glyph);
}
int descent(char c, LyXFont const & f)
{
return descent(C2WC(c), f);
}
int lbearing(wchar_t c,LyXFont const & f)
int lbearing(char c,LyXFont const & f)
{
XftFont * font = getXftFont(f);
XGlyphInfo glyph;
XftTextExtents32(getDisplay(), font,
wcsToXftChar32StrFast(&c),
XftTextExtents8(getDisplay(), font,
reinterpret_cast<XftChar8 *>(&c),
1,
&glyph);
return XGlyphLbearing(glyph);
}
int rbearing(wchar_t c,LyXFont const & f)
int rbearing(char c,LyXFont const & f)
{
XftFont * font = getXftFont(f);
XGlyphInfo glyph;
XftTextExtents32(getDisplay(), font,
wcsToXftChar32StrFast(&c),
XftTextExtents8(getDisplay(), font,
reinterpret_cast<XftChar8 *>(&c),
1,
&glyph);
return XGlyphRbearing(glyph);
}
int lbearing(char c, LyXFont const & f)
{
return lbearing(C2WC(c), f);
}
int rbearing(char c, LyXFont const & f)
{
return rbearing(C2WC(c), f);
}
int width(wchar_t const * s, size_t n, LyXFont const & f)
int width(char const * s, size_t n, LyXFont const & f)
{
XftFont * font = getXftFont(f);
XGlyphInfo glyph;
if (f.realShape() != LyXFont::SMALLCAPS_SHAPE){
XftTextExtents32(getDisplay(), font,
const_cast<XftChar32 *>(
wcsToXftChar32StrFast(s)),
n,
&glyph);
XftTextExtents8(getDisplay(), font,
reinterpret_cast<XftChar8 *>(const_cast<char *>(s)), n, &glyph);
return XGlyphLogWidth(glyph);
} else {
int result = 0;
@ -197,16 +158,16 @@ int width(wchar_t const * s, size_t n, LyXFont const & f)
smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
XftFont * fontS = getXftFont(smallfont);
for (size_t i = 0; i < n; ++i) {
wchar_t wc = lyx::support::uppercase(s[i]);
if (wc != s[i]) {
XftTextExtents32(getDisplay(), fontS,
wcsToXftChar32StrFast(&wc),
char c = lyx::support::uppercase(s[i]);
if (c != s[i]) {
XftTextExtents8(getDisplay(), fontS,
reinterpret_cast<XftChar8 *>(&c),
1,
&glyph);
result += XGlyphLogWidth(glyph);
} else {
XftTextExtents32(getDisplay(), font,
wcsToXftChar32StrFast(&wc),
XftTextExtents8(getDisplay(), font,
reinterpret_cast<XftChar8 *>(&c),
1,
&glyph);
result += XGlyphLogWidth(glyph);
@ -217,42 +178,14 @@ int width(wchar_t const * s, size_t n, LyXFont const & f)
}
int width(wchar_t c,LyXFont const & f)
{
return width(&c, 1, f);
}
int width(char const * s, size_t n, LyXFont const & f)
{
boost::scoped_array<wchar_t> wcs(new wchar_t[n]);
int len; // Signed to handle error retvals
if (fontLoader.isSpecial(f)) {
unsigned char const * us =
reinterpret_cast<unsigned char const *>(s);
len = n;
std::copy(us, us + n, wcs.get());
} else {
len = mbstowcs(wcs.get(), s, n);
if (len < 0) {
lyxerr[Debug::FONT] << "Invalid multibyte encoding! '" << s << "'\n";
return n * width("0", 1, f);
}
}
return width(wcs.get(), static_cast<size_t>(len), f);
}
int signedWidth(string const & s, LyXFont const & f)
{
if (s.empty())
return 0;
boost::scoped_array<wchar_t> wcs(new wchar_t[s.length() + 1]);
int len = mbstowcs(wcs.get(), s.c_str(), s.length());
if (wcs[0] == '-')
return width(wcs.get() + 1, len - 1, f);
if (s[0] == '-')
return width(s.c_str() + 1, s.size() - 1, f);
else
return width(wcs.get(), len, f);
return width(s.c_str(), s.size(), f);
}