C++ (Cpp) CRFONTEXTENTS2RVAL Examples

Example #1

File: rb_cairo_context.c Project: exvayn/cairo-1.8.1-i386

static VALUE
cr_font_extents (VALUE self)
{
  cairo_font_extents_t extents;
  cairo_font_extents (_SELF, &extents);
  cr_check_status (_SELF);
  return CRFONTEXTENTS2RVAL (&extents);
}

Example #2

File: rb_cairo_font_face.c Project: rcairo/rcairo

static cairo_status_t
cr_user_font_face_init_func (cairo_scaled_font_t *scaled_font,
                             cairo_t *cr, cairo_font_extents_t *extents)
{
  cairo_status_t status = CAIRO_STATUS_SUCCESS;
  cairo_font_face_t *face;
  VALUE self;
  VALUE receiver = Qnil;
  ID id_method_name = cr_id_call;

  face = cairo_scaled_font_get_font_face (scaled_font);
  self = (VALUE)cairo_font_face_get_user_data (face, &ruby_object_key);
  receiver = rb_ivar_get (self, cr_id_init);
  if (NIL_P (receiver) && rb_obj_respond_to (self, cr_id_init, Qtrue))
    {
      receiver = self;
      id_method_name = cr_id_init;
    }

  if (!NIL_P (receiver))
    {
      cr_user_font_face_invoke_data_t data;
      VALUE argv[3];

      argv[0] = CRSCALEDFONT2RVAL (scaled_font);
      argv[1] = CRCONTEXT2RVAL (cr);
      argv[2] = CRFONTEXTENTS2RVAL (extents);

      data.receiver = receiver;
      data.method = id_method_name;
      data.argc = 3;
      data.argv = argv;
      data.status = &status;
      data.after_hook = cr_user_font_face_init_func_after;
      data.after_hook_data = extents;

      rb_cairo__invoke_callback (cr_user_font_face_invoke_func, (VALUE)&data);
    }

  return status;
}