matplotlib-devel Mailing List for matplotlib

>>>>> "Jouni" == Jouni K Seppanen <jk...@ik...> writes:

    Jouni> I hacked the load_char method to accept a "flags" keyword
    Jouni> parameter. I hope I didn't break anything; is it safe to
    Jouni> use PyArg_ParseTupleAndKeywords with the C++ interface?

You shouldn't need to with the ft2font extension code, because it uses
pycxx which has support for kwarg handling.  Eg in the _image.cpp src

  Py::Object resize(const Py::Tuple& args, const Py::Dict& kwargs);

Py::Object
Image::resize(const Py::Tuple& args, const Py::Dict& kwargs) {
  _VERBOSE("Image::resize");

  args.verify_length(2);

  int norm = 1;
  if ( kwargs.hasKey("norm") ) norm = Py::Int( kwargs["norm"] );

  double radius = 4.0;
  if ( kwargs.hasKey("radius") ) radius = Py::Float( kwargs["radius"] );
  //snip snip snip
}

so you can easily add kwarg handling by changing the declaration to
accept a Py::Dict and then use the object with dictionary like
semantics.  In the init_type function, you'll need to declare your
method as a kwarg method, eg


  add_keyword_method( "resize", &Image::resize, Image::resize__doc__);

JDH

Jouni K Seppanen <jk...@ik...> writes:

> what looks like a bigger problem is how to get the /Widths array
> required by PDF. I've tried both the width and horiAdvance
> properties of font.load_char(ch), and in either case Acrobat Reader
> tells me the array is invalid.

It apparently has to be font.load_char(ch, LOAD_NO_SCALE), or at least
that produces width values that look similar to those in files saved
by Preview.app. But acroread still complains...

I hacked the load_char method to accept a "flags" keyword 
parameter. I hope I didn't break anything; is it safe to use
PyArg_ParseTupleAndKeywords with the C++ interface?

-- 
Jouni