DenysMedvid/pdf2htmlEX
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Code

working on CID fonts

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This commit is contained in:
Lu Wang 2012-08-11 13:26:57 +08:00
parent e81a24d752
commit fdc0877afb
2 changed files with 113 additions and 3 deletions
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114
src/HTMLRenderer.cc
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@ -423,6 +423,19 @@ long long HTMLRenderer::install_font(GfxFont * font)
case fontTrueTypeOT:
suffix = dump_embedded_truetype_font(font, new_fn_id);
break;
case fontCIDType0C:
suffix = dump_embedded_cidtype0_font(font, new_fn_id);
break;
case fontCIDType2:
case fontCIDType2OT:
suffix = dump_embedded_cidtype2_font(font, new_fn_id);
break;
/*
case fontCIDType0COT:
psName = makePSFontName(font, &fontLoc->embFontID);
setupEmbeddedOpenTypeCFFFont(font, &fontLoc->embFontID, psName);
break;
*/
default:
std::cerr << "TODO: unsuppported embedded font type" << std::endl;
break;
@ -644,7 +657,30 @@ std::string HTMLRenderer::dump_embedded_type1c_font (GfxFont * font, long long f
std::string HTMLRenderer::dump_embedded_opentypet1c_font (GfxFont * font, long long fn_id)
{
return dump_embedded_truetype_font(font, fn_id);
bool ok = false;
int font_len;
char * font_buf = font->readEmbFontFile(xref, &font_len);
if(font_buf != nullptr)
{
auto * FFTT = FoFiTrueType::make(font_buf, font_len);
if(FFTT != nullptr)
{
string fn = (boost::format("f%|1$x|")%fn_id).str();
ofstream tmpf((TMP_DIR + "/" + fn + ".ttf").c_str(), ofstream::binary);
FFTT->convertToType1((char*)(fn.c_str()), nullptr, true, output_to_file, &tmpf);
delete FFTT;
ok = true;
}
else
{
std::cerr << "Warning: cannot process truetype (or opentype t1c) font: " << fn_id << std::endl;
}
gfree(font_buf);
}
return ok ? ".ttf" : "";
}
std::string HTMLRenderer::dump_embedded_truetype_font (GfxFont * font, long long fn_id)
@ -675,6 +711,66 @@ std::string HTMLRenderer::dump_embedded_truetype_font (GfxFont * font, long long
return ok ? ".ttf" : "";
}
std::string HTMLRenderer::dump_embedded_cidtype0_font(GfxFont * font, long long fn_id)
{
bool ok = false;
int font_len;
char * font_buf = font->readEmbFontFile(xref, &font_len);
if(font_buf != nullptr)
{
auto * FFT1C = FoFiType1C::make(font_buf, font_len);
if(FFT1C != nullptr)
{
string fn = (boost::format("f%|1$x|")%fn_id).str();
// TODO: check the suffix
ofstream tmpf((TMP_DIR + "/" + fn + ".pfa").c_str(), ofstream::binary);
FFT1C->convertToCIDType0((char*)(fn.c_str()), nullptr, 0, output_to_file, &tmpf);
delete FFT1C;
ok = true;
}
else
{
std::cerr << "Warning: cannot process truetype (or opentype t1c) font: " << fn_id << std::endl;
}
gfree(font_buf);
}
return ok ? ".pfa" : "";
}
std::string HTMLRenderer::dump_embedded_cidtype2_font(GfxFont * font, long long fn_id)
{
bool ok = false;
int font_len;
char * font_buf = font->readEmbFontFile(xref, &font_len);
if(font_buf != nullptr)
{
auto * FFTT = FoFiTrueType::make(font_buf, font_len);
if(FFTT != nullptr)
{
string fn = (boost::format("f%|1$x|")%fn_id).str();
ofstream tmpf((TMP_DIR + "/" + fn + ".pfa").c_str(), ofstream::binary);
FFTT->convertToCIDType2((char*)(fn.c_str()),
dynamic_cast<GfxCIDFont*>(font)->getCIDToGID(),
dynamic_cast<GfxCIDFont*>(font)->getCIDToGIDLen(),
true, output_to_file, &tmpf);
delete FFTT;
ok = true;
}
else
{
std::cerr << "Warning: cannot process truetype (or opentype t1c) font: " << fn_id << std::endl;
}
gfree(font_buf);
}
return ok ? ".pfa" : "";
}
void HTMLRenderer::install_embedded_font(GfxFont * font, const std::string & suffix, long long fn_id)
{
std::string fn = (boost::format("f%|1$x|") % fn_id).str();
@ -688,7 +784,7 @@ void HTMLRenderer::install_embedded_font(GfxFont * font, const std::string & suf
if(font->getType() < fontCIDType0)
{
for(int i = 0; i < 256; ++i)
for(int i = 0; i <= 0xff; ++i)
{
Unicode * u;
auto n = ctu->mapToUnicode(i, &u);
@ -704,7 +800,19 @@ void HTMLRenderer::install_embedded_font(GfxFont * font, const std::string & suf
}
else
{
std::cerr << "unsupported font type when preparing tounicodeo map" << endl;
for(int i = 0; i <= 0xffff; ++i)
{
Unicode * u;
auto n = ctu->mapToUnicode(i, &u);
// not sure what to do when n > 1
if(n > 0)
{
map_fout << boost::format("0x%|1$X|") % i;
for(int j = 0; j < n; ++j)
map_fout << boost::format(" 0x%|1$X|") % u[j];
map_fout << boost::format(" # 0x%|1$X|") % i << endl;
}
}
}
fontscript_fout << boost::format("LoadEncodingFile(\"%1%/%2%.encoding\", \"%2%\")") % TMP_DIR % fn << endl;
fontscript_fout << boost::format("Reencode(\"%1%\", 1)") % fn << endl;

2
src/HTMLRenderer.h
View File

@ -105,6 +105,8 @@ class HTMLRenderer : public OutputDev
std::string dump_embedded_type1c_font (GfxFont * font, long long fn_id);
std::string dump_embedded_opentypet1c_font (GfxFont * font, long long fn_id);
std::string dump_embedded_truetype_font (GfxFont * font, long long fn_id);
std::string dump_embedded_cidtype0_font (GfxFont * font, long long fn_id);
std::string dump_embedded_cidtype2_font(GfxFont * font, long long fn_id);
void install_embedded_font(GfxFont * font, const std::string & suffix, long long fn_id);
void install_base_font(GfxFont * font, GfxFontLoc * font_loc, long long fn_id);