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| | #include "mplutils.h" |
| |
|
| | #include <pybind11/pybind11.h> |
| | #include "ttconv/pprdrv.h" |
| | #include <vector> |
| |
|
| | namespace py = pybind11; |
| |
|
| | |
| | |
| | |
| | |
| | class PythonFileWriter : public TTStreamWriter |
| | { |
| | py::function _write_method; |
| |
|
| | public: |
| | PythonFileWriter(py::object& file_object) |
| | : _write_method(file_object.attr("write")) {} |
| |
|
| | virtual void write(const char *a) |
| | { |
| | PyObject* decoded = PyUnicode_DecodeLatin1(a, strlen(a), ""); |
| | if (decoded == NULL) { |
| | throw py::error_already_set(); |
| | } |
| | _write_method(py::handle(decoded)); |
| | Py_DECREF(decoded); |
| | } |
| | }; |
| |
|
| | static void convert_ttf_to_ps( |
| | const char *filename, |
| | py::object &output, |
| | int fonttype, |
| | py::iterable* glyph_ids) |
| | { |
| | PythonFileWriter output_(output); |
| |
|
| | std::vector<int> glyph_ids_; |
| | if (glyph_ids) { |
| | for (py::handle glyph_id: *glyph_ids) { |
| | glyph_ids_.push_back(glyph_id.cast<int>()); |
| | } |
| | } |
| |
|
| | if (fonttype != 3 && fonttype != 42) { |
| | throw py::value_error( |
| | "fonttype must be either 3 (raw Postscript) or 42 (embedded Truetype)"); |
| | } |
| |
|
| | try |
| | { |
| | insert_ttfont(filename, output_, static_cast<font_type_enum>(fonttype), glyph_ids_); |
| | } |
| | catch (TTException &e) |
| | { |
| | throw std::runtime_error(e.getMessage()); |
| | } |
| | catch (...) |
| | { |
| | throw std::runtime_error("Unknown C++ exception"); |
| | } |
| | } |
| |
|
| | PYBIND11_MODULE(_ttconv, m) { |
| | m.doc() = "Module to handle converting and subsetting TrueType " |
| | "fonts to Postscript Type 3, Postscript Type 42 and " |
| | "Pdf Type 3 fonts."; |
| | m.def("convert_ttf_to_ps", &convert_ttf_to_ps, |
| | py::arg("filename"), |
| | py::arg("output"), |
| | py::arg("fonttype"), |
| | py::arg("glyph_ids") = py::none(), |
| | "Converts the Truetype font into a Type 3 or Type 42 Postscript font, " |
| | "optionally subsetting the font to only the desired set of characters.\n" |
| | "\n" |
| | "filename is the path to a TTF font file.\n" |
| | "output is a Python file-like object with a write method that the Postscript " |
| | "font data will be written to.\n" |
| | "fonttype may be either 3 or 42. Type 3 is a \"raw Postscript\" font. " |
| | "Type 42 is an embedded Truetype font. Glyph subsetting is not supported " |
| | "for Type 42 fonts within this module (needs to be done externally).\n" |
| | "glyph_ids (optional) is a list of glyph ids (integers) to keep when " |
| | "subsetting to a Type 3 font. If glyph_ids is not provided or is None, " |
| | "then all glyphs will be included. If any of the glyphs specified are " |
| | "composite glyphs, then the component glyphs will also be included." |
| | ); |
| | } |
| |
|
