bool QFontEngineWin::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const
{
if (*nglyphs < len) {
*nglyphs = len;
return false;
}
*nglyphs = getGlyphIndexes(str, len, glyphs, flags & QTextEngine::RightToLeft);
if (flags & QTextEngine::GlyphIndicesOnly)
return true;
recalcAdvances(glyphs, flags);
return true;
}
bool QWindowsFontEngine::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QFontEngine::ShaperFlags flags) const
{
Q_ASSERT(glyphs->numGlyphs >= *nglyphs);
if (*nglyphs < len) {
*nglyphs = len;
return false;
}
glyphs->numGlyphs = *nglyphs;
*nglyphs = getGlyphIndexes(str, len, glyphs);
if (!(flags & GlyphIndicesOnly))
recalcAdvances(glyphs, flags);
return true;
}
bool QFontEngineQPA::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const
{
if (*nglyphs < len) {
*nglyphs = len;
return false;
}
#if defined(DEBUG_FONTENGINE)
QSet<QChar> seenGlyphs;
#endif
const uchar *cmap = externalCMap ? externalCMap : (fontData + cmapOffset);
bool mirrored = flags & QTextEngine::RightToLeft;
int glyph_pos = 0;
if (symbol) {
for (int i = 0; i < len; ++i) {
unsigned int uc = getChar(str, i, len);
if (mirrored)
uc = QChar::mirroredChar(uc);
glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, uc);
if(!glyphs->glyphs[glyph_pos] && uc < 0x100)
glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, uc + 0xf000);
++glyph_pos;
}
} else {
for (int i = 0; i < len; ++i) {
unsigned int uc = getChar(str, i, len);
if (mirrored)
uc = QChar::mirroredChar(uc);
glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, uc);
#if 0 && defined(DEBUG_FONTENGINE)
QChar c(uc);
if (!findGlyph(glyphs[glyph_pos].glyph) && !seenGlyphs.contains(c))
qDebug() << "glyph for character" << c << '/' << hex << uc << "is" << dec << glyphs[glyph_pos].glyph;
seenGlyphs.insert(c);
#endif
++glyph_pos;
}
}
*nglyphs = glyph_pos;
glyphs->numGlyphs = glyph_pos;
recalcAdvances(glyphs, flags);
return true;
}
bool QFontEngineQPF2::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QFontEngine::ShaperFlags flags) const
{
Q_ASSERT(glyphs->numGlyphs >= *nglyphs);
if (*nglyphs < len) {
*nglyphs = len;
return false;
}
#if defined(DEBUG_FONTENGINE)
QSet<QChar> seenGlyphs;
#endif
int glyph_pos = 0;
if (symbol) {
QStringIterator it(str, str + len);
while (it.hasNext()) {
const uint uc = it.next();
glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, cmapSize, uc);
if(!glyphs->glyphs[glyph_pos] && uc < 0x100)
glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, cmapSize, uc + 0xf000);
++glyph_pos;
}
} else {
QStringIterator it(str, str + len);
while (it.hasNext()) {
const uint uc = it.next();
glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, cmapSize, uc);
#if 0 && defined(DEBUG_FONTENGINE)
QChar c(uc);
if (!findGlyph(glyphs[glyph_pos].glyph) && !seenGlyphs.contains(c))
qDebug() << "glyph for character" << c << '/' << hex << uc << "is" << dec << glyphs[glyph_pos].glyph;
seenGlyphs.insert(c);
#endif
++glyph_pos;
}
}
*nglyphs = glyph_pos;
glyphs->numGlyphs = glyph_pos;
if (!(flags & GlyphIndicesOnly))
recalcAdvances(glyphs, flags);
return true;
}
bool QFontEngineS60::stringToCMap(const QChar *characters, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const
{
if (*nglyphs < len) {
*nglyphs = len;
return false;
}
HB_Glyph *g = glyphs->glyphs;
const unsigned char* cmap = m_extensions->cmap();
for (int i = 0; i < len; ++i) {
const unsigned int uc = getChar(characters, i, len);
*g++ = QFontEngine::getTrueTypeGlyphIndex(cmap, uc);
}
glyphs->numGlyphs = g - glyphs->glyphs;
*nglyphs = glyphs->numGlyphs;
if (flags & QTextEngine::GlyphIndicesOnly)
return true;
recalcAdvances(glyphs, flags);
return true;
}
bool QWindowsFontEngineDirectWrite::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs,
int *nglyphs, QFontEngine::ShaperFlags flags) const
{
if (*nglyphs < len) {
*nglyphs = len;
return false;
}
QVarLengthArray<UINT32> codePoints(len);
int actualLength = 0;
if (flags & QFontEngine::RightToLeft) {
for (int i = 0; i < len; ++i)
codePoints[actualLength++] = QChar::mirroredChar(getChar(str, i, len));
} else {
for (int i = 0; i < len; ++i)
codePoints[actualLength++] = getChar(str, i, len);
}
QVarLengthArray<UINT16> glyphIndices(actualLength);
HRESULT hr = m_directWriteFontFace->GetGlyphIndicesW(codePoints.data(), actualLength,
glyphIndices.data());
if (FAILED(hr)) {
qErrnoWarning("%s: GetGlyphIndicesW failed", __FUNCTION__);
return false;
}
for (int i = 0; i < actualLength; ++i)
glyphs->glyphs[i] = glyphIndices.at(i);
*nglyphs = actualLength;
glyphs->numGlyphs = actualLength;
if (!(flags & GlyphIndicesOnly))
recalcAdvances(glyphs, 0);
return true;
}
bool QFontEngineXLFD::stringToCMap(const QChar *s, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const
{
if (*nglyphs < len) {
*nglyphs = len;
return false;
}
// filter out surrogates, we can't handle them anyway with XLFD fonts
QVarLengthArray<ushort> _s(len);
QChar *str = (QChar *)_s.data();
for (int i = 0; i < len; ++i) {
if (s[i].isHighSurrogate() && i < len-1 && s[i+1].isLowSurrogate()) {
*str = QChar();
++i;
} else {
*str = s[i];
}
++str;
}
len = str - (QChar *)_s.data();
str = (QChar *)_s.data();
bool mirrored = flags & QTextEngine::RightToLeft;
if (_codec) {
bool haveNbsp = false;
for (int i = 0; i < len; i++)
if (str[i].unicode() == 0xa0) {
haveNbsp = true;
break;
}
QVarLengthArray<unsigned short> ch(len);
QChar *chars = (QChar *)ch.data();
if (haveNbsp || mirrored) {
for (int i = 0; i < len; i++)
chars[i] = (str[i].unicode() == 0xa0 ? 0x20 :
(mirrored ? QChar::mirroredChar(str[i].unicode()) : str[i].unicode()));
} else {
for (int i = 0; i < len; i++)
chars[i] = str[i].unicode();
}
QTextCodec::ConverterState state;
state.flags = QTextCodec::ConvertInvalidToNull;
QByteArray ba = _codec->fromUnicode(chars, len, &state);
if (ba.length() == 2*len) {
// double byte encoding
const uchar *data = (const uchar *)ba.constData();
for (int i = 0; i < len; i++) {
glyphs->glyphs[i] = ((ushort)data[0] << 8) + data[1];
data += 2;
}
} else {
const uchar *data = (const uchar *)ba.constData();
for (int i = 0; i < len; i++)
glyphs->glyphs[i] = (ushort)data[i];
}
} else {
int i = len;
const QChar *c = str + len;
if (mirrored) {
while (c != str)
glyphs->glyphs[--i] = (--c)->unicode() == 0xa0 ? 0x20 : QChar::mirroredChar(c->unicode());
} else {
while (c != str)
glyphs->glyphs[--i] = (--c)->unicode() == 0xa0 ? 0x20 : c->unicode();
}
}
*nglyphs = len;
glyphs->numGlyphs = len;
if (!(flags & QTextEngine::GlyphIndicesOnly))
recalcAdvances(glyphs, flags);
return true;
}
