static int
pf_set_bg_color(PyGimpPixelFetcher *self, PyObject *value, void *closure)
{
if (value == NULL) {
PyErr_SetString(PyExc_TypeError, "cannot delete bg_color");
return -1;
}
if (!pygimp_rgb_from_pyobject(value, &self->bg_color))
return -1;
gimp_pixel_fetcher_set_bg_color(self->pf, &self->bg_color);
return 0;
}
static PyObject *
pygimp_bilinear_color(PyObject *self, PyObject *args, PyObject *kwargs, gboolean with_alpha)
{
gdouble x, y;
GimpRGB values[4];
GimpRGB rgb;
PyObject *py_values, *v;
int i, success;
static char *kwlist[] = { "x", "y", "values", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
with_alpha ? "ddO:bilinear_rgba"
: "ddO:bilinear_rgb",
kwlist,
&x, &y, &py_values))
return NULL;
if (!PySequence_Check(py_values) || PySequence_Size(py_values) != 4) {
PyErr_SetString(PyExc_TypeError, "values is not a sequence of 4 items");
return NULL;
}
for (i = 0; i < 4; i++) {
v = PySequence_GetItem(py_values, i);
success = pygimp_rgb_from_pyobject(v, &values[i]);
Py_DECREF(v);
if (!success) {
PyErr_Format(PyExc_TypeError, "values[%d] is not a GimpRGB", i);
return NULL;
}
}
if (with_alpha)
rgb = gimp_bilinear_rgba(x, y, values);
else
rgb = gimp_bilinear_rgb(x, y, values);
return pygimp_rgb_new(&rgb);
}
