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/* -*- Mode: C; c-basic-offset: 4 -*-
Gimp-Python - allows the writing of Gimp plugins in Python.
Copyright (C) 2004 Manish Singh <yosh@gimp.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
#include <Python.h>
#include <structseq.h>
#include <gtk/gtk.h>
#include <pygobject.h>
#include <pygtk/pygtk.h>
#include <libgimp/gimp.h>
#include <plug-ins/dbbrowser/gimpprocbrowser.h>
typedef PyObject *(*PyGimpPDBFunctionNew)(const char *name, const char *blurb,
const char *help, const char *author,
const char *copyright,
const char *date,
GimpPDBProcType proc_type,
int n_params, int n_return_vals,
GimpParamDef *params,
GimpParamDef *return_vals);
typedef struct
{
PyObject *func;
PyObject *data;
} ProxyData;
static PyTypeObject *PyGimpPDBFunction_Type;
static PyGimpPDBFunctionNew pygimp_pdb_function_new;
static GimpParamDef *
copy_paramdefs(const GimpParamDef *paramdefs, gint n_params)
{
GimpParamDef *copy;
copy = g_new(GimpParamDef, n_params);
while (n_params--)
{
copy[n_params].type = paramdefs[n_params].type;
copy[n_params].name = g_strdup(paramdefs[n_params].name);
copy[n_params].description = g_strdup(paramdefs[n_params].description);
}
return copy;
}
static void
proxy_apply_callback(const gchar *name,
const gchar *blurb,
const gchar *help,
const gchar *author,
const gchar *copyright,
const gchar *date,
GimpPDBProcType proc_type,
gint n_params,
gint n_return_vals,
const GimpParamDef *params,
const GimpParamDef *return_vals,
gpointer user_data)
{
ProxyData *proxy_data = user_data;
GimpParamDef *params_copy, *return_vals_copy;
PyObject *pdb_func, *ret;
params_copy = copy_paramdefs(params, n_params);
return_vals_copy = copy_paramdefs(return_vals, n_return_vals);
pdb_func = pygimp_pdb_function_new(name, blurb, help, author, copyright,
date, proc_type, n_params, n_return_vals,
params_copy, return_vals_copy);
if (pdb_func == NULL) {
PyErr_Print();
return;
}
if (proxy_data->data)
ret = PyObject_CallFunctionObjArgs(proxy_data->func, pdb_func,
proxy_data->data, NULL);
else
ret = PyObject_CallFunctionObjArgs(proxy_data->func, pdb_func, NULL);
if (ret)
Py_DECREF(ret);
else
PyErr_Print();
Py_DECREF(pdb_func);
}
static void
proxy_cleanup(gpointer data, GObject *obj)
{
ProxyData *proxy_data = data;
Py_DECREF(proxy_data->func);
Py_XDECREF(proxy_data->data);
g_free(proxy_data);
}
static PyObject *
proc_browser_dialog_new(PyObject *self, PyObject *args, PyObject *kwargs)
{
PyObject *py_func = Py_None, *py_data = Py_None;
GimpProcBrowserApplyCallback proxy_func = NULL;
ProxyData *proxy_data = NULL;
GObject *dlg;
static char *kwlist[] = { "apply_callback", "data", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OO:dialog_new", kwlist,
&py_func, &py_data))
return NULL;
if (py_func != Py_None) {
if (PyCallable_Check(py_func))
proxy_func = proxy_apply_callback;
else {
PyErr_SetString(PyExc_TypeError,
"apply_callback must be a callable object or None");
return NULL;
}
proxy_data = g_new0(ProxyData, 1);
proxy_data->func = py_func;
Py_INCREF(py_func);
if (py_data != Py_None) {
proxy_data->data = py_data;
Py_INCREF(py_data);
}
}
dlg = G_OBJECT(gimp_proc_browser_dialog_new(FALSE, proxy_func, proxy_data));
if (proxy_data)
g_object_weak_ref(dlg, proxy_cleanup, proxy_data);
return pygobject_new(dlg);
}
/* List of methods defined in the module */
static struct PyMethodDef procbrowser_methods[] = {
{"dialog_new", (PyCFunction)proc_browser_dialog_new, METH_VARARGS | METH_KEYWORDS},
{NULL, (PyCFunction)NULL, 0, NULL} /* sentinel */
};
/* Initialization function for the module (*must* be called initgimpprocbrowser) */
static char procbrowser_doc[] =
"This module provides a simple interface for the GIMP PDB Browser"
;
void
initgimpprocbrowser(void)
{
PyObject *m, *pygimp;
init_pygobject();
init_pygtk();
pygimp = PyImport_ImportModule("gimp");
if (pygimp) {
PyObject *module_dict = PyModule_GetDict(pygimp);
PyObject *type_object, *c_object;
type_object = PyDict_GetItemString(module_dict, "_PDBFunction");
c_object = PyDict_GetItemString(module_dict, "_pdb_function_new");
if (PyType_Check(type_object) && PyCObject_Check(c_object)) {
PyGimpPDBFunction_Type = (PyTypeObject*)type_object;
pygimp_pdb_function_new = PyCObject_AsVoidPtr(c_object);
} else {
PyErr_SetString(PyExc_RuntimeError,
"could not find compatible gimp module");
return;
}
} else {
PyErr_SetString(PyExc_ImportError, "could not import gimp");
return;
}
/* Create the module and add the functions */
m = Py_InitModule3("gimpprocbrowser",
procbrowser_methods, procbrowser_doc);
/* Check for errors */
if (PyErr_Occurred())
Py_FatalError("can't initialize module gimpprocbrowser");
}
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