void ScFace_ttf::load() const
{
if ( !kernFeature )
kernFeature = new KernFeature ( ftFace() );
FtFace::load();
sfnt::PostTable checkPost;
FT_Face face = ftFace();
checkPost.readFrom(face);
// if (!checkPost.usable)
// qDebug() << "can't use post table from " << face->family_name << face->style_name << ":" << checkPost.errorMsg;
// else
// qDebug() << "posttable from" << face->family_name << face->style_name << "has names for" << checkPost.numberOfGlyphs() << "glyphs and" << maxGlyph << "glyphs in charmap";
const_cast<bool&>(hasGlyphNames) = checkPost.usable && checkPost.numberOfGlyphs() >= maxGlyph;
}
bool ScFace_ttf::glyphNames(ScFace::FaceEncoding& GList) const
{
FT_ULong charcode;
FT_UInt gindex = 0;
FT_Face face = ftFace();
if (!face)
return false;
// The glyph name table embedded in Truetype fonts is not reliable.
// For those fonts we consequently use Adobe Glyph names whenever possible.
const bool avoidFntNames = (formatCode != ScFace::TYPE42 && typeCode == ScFace::TTF) && hasMicrosoftUnicodeCmap(face);
if (!avoidFntNames)
return FtFace::glyphNames(GList);
// qDebug() << "reading metrics for" << face->family_name << face->style_name;
charcode = FT_Get_First_Char(face, &gindex);
while (gindex != 0)
{
GList.insert(gindex, std::make_pair(static_cast<ScFace::ucs4_type>(charcode), adobeGlyphName(charcode)));
charcode = FT_Get_Next_Char(face, charcode, &gindex );
}
return true;
}
bool ScFace_ttf::isSymbolic() const
{
FT_Face face = ftFace();
if (!face || !face->charmap)
return false;
return (m_face->charmap->encoding == FT_ENCODING_MS_SYMBOL);
}
void* ScFace::ScFaceData::hbFont()
{
if (!m_hbFont)
{
if (!ftFace())
return NULL;
if (formatCode == ScFace::SFNT || formatCode == ScFace::TTCF || formatCode == ScFace::TYPE42)
{
// use HarfBuzz internal font functions for formats it supports,
// gives us more consistent glyph metrics.
FT_Reference_Face(ftFace());
hb_face_t *hbFace = hb_face_create_for_tables(referenceTable, ftFace(), (hb_destroy_func_t) FT_Done_Face);
hb_face_set_index(hbFace, ftFace()->face_index);
hb_face_set_upem(hbFace, ftFace()->units_per_EM);
m_hbFont = hb_font_create(hbFace);
hb_ot_font_set_funcs(reinterpret_cast<hb_font_t*>(m_hbFont));
hb_face_destroy(hbFace);
}
else
{
m_hbFont = hb_ft_font_create_referenced(ftFace());
}
}
return m_hbFont;
}
bool ScFace_ttf::hasNames() const
{
FT_Face face = ftFace();
if (!face)
return false;
// The glyph name table embedded in Truetype fonts is not reliable.
// For those fonts we consequently use Adobe Glyph names whenever possible.
const bool avoidFntNames = (formatCode != ScFace::TYPE42 && typeCode == ScFace::TTF) && hasMicrosoftUnicodeCmap(face);
if (avoidFntNames)
return true; // We use Adobe Glyph List or 'uniXXXX' names in such case
return FtFace::hasNames();
}
bool ScFace_ttf::EmbedFont(QByteArray &str) const
{
QByteArray bb;
FtFace::RawData(bb);
if (formatCode == ScFace::TYPE42) {
//easy:
str = bb;
return true;
}
QString tmp4;
QString tmp2 = "";
QString tmp3 = "";
int counter = 0;
char *buf[50];
FT_ULong charcode;
FT_UInt gindex;
FT_Face face = ftFace();
if (!face) {
return false;
}
const FT_Stream fts = face->stream;
if (ftIOFunc(fts, 0L, NULL, 0)) {
return(false);
}
str+="%!PS-TrueTypeFont\n";
str+="11 dict begin\n";
str+="/FontName /" + psName + " def\n";
str+="/Encoding /ISOLatin1Encoding where {pop ISOLatin1Encoding} {StandardEncoding} ifelse def\n";
str+="/PaintType 0 def\n/FontMatrix [1 0 0 1 0 0] def\n";
str+="/FontBBox ["+m_pdfFontBBox+"] def\n";
str+="/FontType 42 def\n";
str+="/FontInfo 8 dict dup begin\n";
str+="/FamilyName (" + psName + ") def\n";
str+="end readonly def\n";
unsigned char *tmp = new unsigned char[65535];
int length;
char linebuf[80];
str += "/sfnts [";
int poso=0;
do {
int posi=0;
length= fts->size - fts->pos;
if (length > 65534) {
length = 65534;
}
if (!ftIOFunc(fts, 0L, tmp, length))
{
str+="\n<\n";
for (int j = 0; j < length; j++)
{
unsigned char u=tmp[posi];
linebuf[poso]=((u >> 4) & 15) + '0';
if (u>0x9f) linebuf[poso]+='a'-':';
++poso;
u&=15; linebuf[poso]=u + '0';
if (u>0x9) linebuf[poso]+='a'-':';
++posi;
++poso;
if (poso > 70)
{
linebuf[poso++]='\n';
linebuf[poso++]=0;
str += linebuf;
poso = 0;
}
}
linebuf[poso++]=0;
str += linebuf;
poso = 0;
str += "00\n>";
}
else {
sDebug(QObject::tr("Font %1 is broken (read stream), no embedding").arg(fontFile));
str += "\n] def\n";
status = qMax(status,ScFace::BROKENGLYPHS);
return false;
}
} while (length==65534);
