mirror of
https://github.com/pdf2htmlEX/pdf2htmlEX.git
synced 2024-12-22 13:00:08 +00:00
generate script for fontforge to extract the font files
This commit is contained in:
Lu Wang
parent
37231c9550
commit
cac5906ba9
@ -8,22 +8,11 @@ SCRIPT_DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"/
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# Execute
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${SCRIPT_DIR}/pdftohtmlEX $*
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if [ -f convert.pe ]; then
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echo -n "Converting fonts: "
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for f in *.ttf; do
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if [ -f $f ]; then
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fontforge -script "${SCRIPT_DIR}/convert.pe" $f 2>/dev/null
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echo -n "."
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fontforge -script convert.pe 2>/dev/null
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echo "."
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rm convert.pe
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fi
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done
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for f in *.pfa; do
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if [ -f $f ]; then
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fontforge -script "${SCRIPT_DIR}/convert.pe" $f 2>/dev/null
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rm $f
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echo -n "."
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fi
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done
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echo
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echo "Done."
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@ -47,7 +47,9 @@
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HTMLRenderer::HTMLRenderer(const Param * param)
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:line_opened(false)
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,html_fout(param->output_filename.c_str(), ofstream::binary), allcss_fout("all.css")
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,html_fout(param->output_filename.c_str(), ofstream::binary)
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,allcss_fout("all.css")
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,fontscript_fout("convert.pe")
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,param(param)
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{
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// install default font & size
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@ -404,26 +406,7 @@ long long HTMLRenderer::install_font(GfxFont * font)
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switch(font_loc -> locType)
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{
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case gfxFontLocEmbedded:
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switch(font_loc -> fontType)
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{
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case fontType1:
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install_embedded_type1_font(&font_loc->embFontID, font, new_fn_id);
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break;
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case fontType1C:
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install_embedded_type1c_font(font, new_fn_id);
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break;
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case fontType1COT:
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install_embedded_opentypet1c_font(font, new_fn_id);
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break;
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case fontTrueType:
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case fontTrueTypeOT:
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install_embedded_truetype_font(font, new_fn_id);
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break;
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default:
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std::cerr << "TODO: unsuppported embedded font type" << std::endl;
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export_remote_default_font(new_fn_id);
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break;
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}
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install_embedded_font(font, new_fn_id);
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break;
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case gfxFontLocExternal:
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std::cerr << "TODO: external font" << std::endl;
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@ -445,208 +428,15 @@ long long HTMLRenderer::install_font(GfxFont * font)
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return new_fn_id;
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}
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void HTMLRenderer::install_embedded_type1_font (Ref * id, GfxFont * font, long long fn_id)
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void HTMLRenderer::install_embedded_font (GfxFont * font, long long fn_id)
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{
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Object ref_obj, str_obj, ol1, ol2, ol3;
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Dict * dict;
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//generate script for fontforge
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fontscript_fout << boost::format("Open(\"%1%(%2%)\")") % param->input_filename % font->getName()->getCString() << endl;
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fontscript_fout << boost::format("Generate(\"f%|1$x|.ttf\")") % fn_id << endl;
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int l1, l2, l3;
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int c;
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bool is_bin = false;
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int buf[4];
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ofstream tmpf((boost::format("f%|1$x|.pfa")%fn_id).str().c_str(), ofstream::binary);
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auto output_char = [&tmpf](int c)->void {
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char tmp = (char)(c & 0xff);
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tmpf.write(&tmp, 1);
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};
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ref_obj.initRef(id->num, id->gen);
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ref_obj.fetch(xref, &str_obj);
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ref_obj.free();
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if(!str_obj.isStream())
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{
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std::cerr << "Embedded font is not a stream" << std::endl;
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goto err;
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export_remote_font(fn_id, ".ttf", "truetype", font);
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}
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dict = str_obj.streamGetDict();
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if(dict == nullptr)
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{
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std::cerr << "No dict in the embedded font" << std::endl;
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goto err;
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}
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dict->lookup("Length1", &ol1);
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dict->lookup("Length2", &ol2);
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dict->lookup("Length3", &ol3);
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if(!(ol1.isInt() && ol2.isInt() && ol3.isInt()))
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{
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std::cerr << "Length 1&2&3 are not all integers" << std::endl;
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ol1.free();
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ol2.free();
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ol3.free();
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goto err;
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}
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l1 = ol1.getInt();
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l2 = ol2.getInt();
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l3 = ol3.getInt();
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ol1.free();
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ol2.free();
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ol3.free();
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str_obj.streamReset();
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for(int i = 0; i < l1; ++i)
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{
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if((c = str_obj.streamGetChar()) == EOF)
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break;
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output_char(c);
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}
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if(l2 == 0)
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{
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std::cerr << "Bad Length2" << std::endl;
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goto err;
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}
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{
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int i;
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for(i = 0; i < 4; ++i)
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{
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int j = buf[i] = str_obj.streamGetChar();
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if(buf[i] == EOF)
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{
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std::cerr << "Embedded font stream is too short" << std::endl;
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goto err;
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}
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if(!((j>='0'&&j<='9') || (j>='a'&&j<='f') || (j>='A'&&j<='F')))
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{
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is_bin = true;
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++i;
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break;
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}
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}
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if(is_bin)
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{
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static const char hex_char[] = "0123456789ABCDEF";
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for(int j = 0; j < i; ++j)
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{
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output_char(hex_char[(buf[j]>>4)&0xf]);
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output_char(hex_char[buf[j]&0xf]);
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}
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for(; i < l2; ++i)
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{
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if(i % 32 == 0)
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output_char('\n');
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int c = str_obj.streamGetChar();
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if(c == EOF)
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break;
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output_char(hex_char[(c>>4)&0xf]);
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output_char(hex_char[c&0xf]);
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}
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if(i % 32 != 0)
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output_char('\n');
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}
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else
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{
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for(int j = 0; j < i; ++j)
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{
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output_char(buf[j]);
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}
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for(;i < l2; ++i)
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{
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int c = str_obj.streamGetChar();
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if(c == EOF)
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break;
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output_char(c);
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}
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}
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}
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if(l3 > 0)
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{
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int c;
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while((c = str_obj.streamGetChar()) != EOF)
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output_char(c);
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}
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else
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{
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for(int i = 0; i < 8; ++i)
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{
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for(int j = 0; j < 64; ++j)
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output_char('0');
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output_char('\n');
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}
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static const char * CTM = "cleartomark\n";
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tmpf.write(CTM, strlen(CTM));
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}
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export_remote_font(fn_id, "ttf", font);
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err:
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str_obj.streamClose();
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str_obj.free();
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}
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void HTMLRenderer::output_to_file(void * outf, const char * data, int len)
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{
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reinterpret_cast<ofstream*>(outf)->write(data, len);
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}
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void HTMLRenderer::install_embedded_type1c_font (GfxFont * font, long long fn_id)
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{
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int font_len;
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char * font_buf = font->readEmbFontFile(xref, &font_len);
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if(font_buf != nullptr)
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{
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auto * FFT1C = FoFiType1C::make(font_buf, font_len);
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if(FFT1C != nullptr)
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{
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string fn = (boost::format("f%|1$x|")%fn_id).str();
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ofstream tmpf((fn+".pfa").c_str(), ofstream::binary);
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FFT1C->convertToType1((char*)fn.c_str(), nullptr, true, &output_to_file , &tmpf);
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export_remote_font(fn_id, "ttf", font);
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delete FFT1C;
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}
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else
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{
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std::cerr << "Warning: cannot process type 1c font: " << fn_id << std::endl;
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export_remote_default_font(fn_id);
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}
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gfree(font_buf);
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}
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}
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void HTMLRenderer::install_embedded_opentypet1c_font (GfxFont * font, long long fn_id)
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{
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install_embedded_truetype_font(font, fn_id);
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}
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void HTMLRenderer::install_embedded_truetype_font (GfxFont * font, long long fn_id)
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{
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int font_len;
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char * font_buf = font->readEmbFontFile(xref, &font_len);
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if(font_buf != nullptr)
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{
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auto * FFTT = FoFiTrueType::make(font_buf, font_len);
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if(FFTT != nullptr)
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{
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string fn = (boost::format("f%|1$x|")%fn_id).str();
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ofstream tmpf((fn+".ttf").c_str(), ofstream::binary);
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FFTT->writeTTF(output_to_file, &tmpf, (char*)(fn.c_str()), nullptr);
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export_remote_font(fn_id, "ttf", font);
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delete FFTT;
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}
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else
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{
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std::cerr << "Warning: cannot process truetype (or opentype t1c) font: " << fn_id << std::endl;
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export_remote_default_font(fn_id);
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}
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gfree(font_buf);
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}
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}
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void HTMLRenderer::install_base_font( GfxFont * font, GfxFontLoc * font_loc, long long fn_id)
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{
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std::string psname(font_loc->path->getCString());
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@ -718,42 +508,13 @@ long long HTMLRenderer::install_color(const GfxRGB * rgb)
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return new_color_id;
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}
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void HTMLRenderer::export_remote_font(long long fn_id, const string & suffix, GfxFont * font)
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void HTMLRenderer::export_font(long long fn_id, const string & original_font_name, const string & font_family_string, GfxFont * font)
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{
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allcss_fout << boost::format("@font-face{font-family:f%|1$x|;src:url(f%|1$x|.%2%);}.f%|1$x|{font-family:f%|1$x|;") % fn_id % suffix;
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double a = font->getAscent();
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double d = font->getDescent();
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double r = _is_positive(a-d) ? (a/(a-d)) : 1.0;
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for(const std::string & prefix : {"", "-ms-", "-moz-", "-webkit-", "-o-"})
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{
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allcss_fout << prefix << "transform-origin:0% " << (r*100.0) << "%;";
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}
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allcss_fout << "line-height:" << (a-d) << ";";
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allcss_fout << "}";
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if(param->readable) allcss_fout << endl;
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}
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// TODO: this function is called when some font is unable to process, may use the name there as a hint
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void HTMLRenderer::export_remote_default_font(long long fn_id)
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{
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allcss_fout << boost::format(".f%|1$x|{font-family:sans-serif;color:transparent;visibility:hidden;}")%fn_id;
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if(param->readable) allcss_fout << endl;
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}
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void HTMLRenderer::export_local_font(long long fn_id, GfxFont * font, GfxFontLoc * font_loc, const string & original_font_name, const string & cssfont)
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{
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allcss_fout << boost::format(".f%|1$x|{") % fn_id;
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allcss_fout << "font-family:" << ((cssfont == "") ? (original_font_name + "," + general_font_family(font)) : cssfont) << ";";
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allcss_fout << boost::format("@font-face{font-family:f%|1$x|;%2%;}.f%|1$x|{font-family:f%|1$x|;") % fn_id % font_family_string;
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// TODO: shall we export these information for embedded fonts? or it doesn't matter?
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if(font->isBold())
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allcss_fout << "font-weight:bold;";
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if(boost::algorithm::ifind_first(original_font_name, "oblique"))
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allcss_fout << "font-style:oblique;";
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else if(font->isItalic())
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@ -775,6 +536,24 @@ void HTMLRenderer::export_local_font(long long fn_id, GfxFont * font, GfxFontLoc
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if(param->readable) allcss_fout << endl;
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}
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void HTMLRenderer::export_remote_font(long long fn_id, const string & suffix, const string & format, GfxFont * font)
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{
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export_font(fn_id, font->getName()->getCString(), (boost::format("src:url(f%|1$x|%2%)format(\"%3%\")") % fn_id % suffix % format).str(), font);
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}
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// TODO: this function is called when some font is unable to process, may use the name there as a hint
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void HTMLRenderer::export_remote_default_font(long long fn_id)
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{
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allcss_fout << boost::format(".f%|1$x|{font-family:sans-serif;color:transparent;visibility:hidden;}")%fn_id;
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if(param->readable) allcss_fout << endl;
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}
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void HTMLRenderer::export_local_font(long long fn_id, GfxFont * font, GfxFontLoc * font_loc, const string & original_font_name, const string & cssfont)
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{
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export_font(fn_id, original_font_name, string("font-family:") + ((cssfont == "") ? (original_font_name + "," + general_font_family(font)) : cssfont), font);
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}
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std::string HTMLRenderer::general_font_family(GfxFont * font)
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{
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if(font -> isFixedWidth())
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@ -112,10 +112,7 @@ class HTMLRenderer : public OutputDev
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long long install_font(GfxFont * font);
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static void output_to_file(void * outf, const char * data, int len);
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void install_embedded_type1_font (Ref * id, GfxFont * font, long long fn_id);
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void install_embedded_type1c_font (GfxFont * font, long long fn_id);
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void install_embedded_opentypet1c_font (GfxFont * font, long long fn_id);
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void install_embedded_truetype_font (GfxFont * font, long long fn_id);
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void install_embedded_font (GfxFont * font, long long fn_id);
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void install_base_font(GfxFont * font, GfxFontLoc * font_loc, long long fn_id);
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long long install_font_size(double font_size);
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@ -127,7 +124,8 @@ class HTMLRenderer : public OutputDev
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* remote font: to be retrieved from the web server
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* local font: to be substituted with a local (client side) font
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*/
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void export_remote_font(long long fn_id, const string & suffix, GfxFont * font);
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void export_font(long long fn_id, const string & original_font_name, const string & font_family_string, GfxFont * font);
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void export_remote_font(long long fn_id, const string & suffix, const string & format, GfxFont * font);
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void export_remote_default_font(long long fn_id);
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void export_local_font(long long fn_id, GfxFont * font, GfxFontLoc * font_loc, const string & original_font_name, const string & cssfont);
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std::string general_font_family(GfxFont * font);
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@ -191,7 +189,7 @@ class HTMLRenderer : public OutputDev
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// the position of next char, in text coords
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double draw_tx, draw_ty;
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ofstream html_fout, allcss_fout;
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ofstream html_fout, allcss_fout, fontscript_fout;
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class FontInfo{
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public:
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