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subscript API for PixelFetcher.

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2007-12-30  Manish Singh  <yosh@gimp.org>

        * plug-ins/pygimp/pygimp-tile.c: subscript API for PixelFetcher.

svn path=/trunk/; revision=24486
This commit is contained in:
Manish Singh
2007-12-30 16:56:57 +00:00
committed by Manish Singh
parent 7942708dd2
commit 7313f6d06c
2 changed files with 100 additions and 1 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2007-12-30 Manish Singh <yosh@gimp.org>
* plug-ins/pygimp/pygimp-tile.c: subscript API for PixelFetcher.
2007-12-30 Michael Natterer <mitch@gimp.org>
* app/gegl/gimpoperationtilesource.c: minor cleanup.

97
plug-ins/pygimp/pygimp-tile.c
View File

@ -748,6 +748,101 @@ static PyMethodDef pf_methods[] = {
{NULL, NULL}
};
static int
pf_length(PyGimpPixelFetcher *self)
{
PyErr_SetString(pygimp_error, "Can't get size of pixel fetcher");
return -1;
}
static PyObject *
pf_subscript(PyGimpPixelFetcher *self, PyObject *key)
{
PyObject *py_x, *py_y;
int x, y;
guchar pixel[4];
if (!PyTuple_Check(key) || PyTuple_Size(key) != 2) {
PyErr_SetString(PyExc_TypeError, "subscript must be a 2-tuple");
return NULL;
}
if (!PyArg_ParseTuple(key, "OO", &py_x, &py_y))
return NULL;
if (PyInt_Check(py_x)) {
if (PyInt_Check(py_y)) {
x = PyInt_AsLong(py_x);
y = PyInt_AsLong(py_y);
gimp_pixel_fetcher_get_pixel(self->pf, x, y, pixel);
return PyString_FromStringAndSize((char *)pixel, self->bpp);
} else {
PyErr_SetString(PyExc_TypeError, "invalid y subscript");
return NULL;
}
} else {
PyErr_SetString(PyExc_TypeError, "invalid x subscript");
return NULL;
}
}
static int
pf_ass_sub(PyGimpPixelFetcher *self, PyObject *v, PyObject *w)
{
PyObject *py_x, *py_y;
int x, y, len;
guchar *pixel;
if (w == NULL) {
PyErr_SetString(PyExc_TypeError, "can't delete subscripts");
return -1;
}
if (!PyString_Check(w)) {
PyErr_SetString(PyExc_TypeError, "must assign string to subscript");
return -1;
}
if (!PyTuple_Check(v) || PyTuple_Size(v) != 2) {
PyErr_SetString(PyExc_TypeError, "subscript must be a 2-tuple");
return -1;
}
if (!PyArg_ParseTuple(v, "OO", &py_x, &py_y))
return -1;
pixel = (guchar *)PyString_AsString(w);
len = PyString_Size(w);
if (len != self->bpp) {
PyErr_Format(PyExc_TypeError, "pixel must be %d bpp", self->bpp);
return -1;
}
if (PyInt_Check(py_x)) {
if (PyInt_Check(py_y)) {
x = PyInt_AsLong(py_x);
y = PyInt_AsLong(py_y);
gimp_pixel_fetcher_put_pixel(self->pf, x, y, pixel);
return 0;
} else {
PyErr_SetString(PyExc_TypeError, "invalid y subscript");
return -1;
}
} else {
PyErr_SetString(PyExc_TypeError, "invalid x subscript");
return -1;
}
}
static PyMappingMethods pf_as_mapping = {
(inquiry)pf_length,
(binaryfunc)pf_subscript,
(objobjargproc)pf_ass_sub,
};
static PyObject *
pf_get_bg_color(PyGimpPixelFetcher *self, void *closure)
{
@ -879,7 +974,7 @@ PyTypeObject PyGimpPixelFetcher_Type = {
(reprfunc)pf_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
&pf_as_mapping, /* tp_as_mapping */
(hashfunc)0, /* tp_hash */
(ternaryfunc)0, /* tp_call */
(reprfunc)0, /* tp_str */