/* Chrysalide - Outil d'analyse de fichiers binaires
* named.c - prototypes pour l'équivalent Python du fichier "gtkext/named.c"
*
* Copyright (C) 2020 Cyrille Bagard
*
* This file is part of Chrysalide.
*
* Chrysalide 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 3 of the License, or
* (at your option) any later version.
*
* Chrysalide 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 "named.h"
#include <pygobject.h>
#include <gtkext/named-int.h>
#include <plugins/dt.h>
#include "../access.h"
#include "../helpers.h"
#include "../glibext/named.h"
/* ------------------------ GLUE POUR CREATION DEPUIS PYTHON ------------------------ */
/* Accompagne la création d'une instance dérivée en Python. */
static PyObject *py_built_named_widget_new(PyTypeObject *, PyObject *, PyObject *);
/* Initialise une instance sur la base du dérivé de GObject. */
static int py_built_named_widget_init(PyObject *, PyObject *, PyObject *);
/* --------------------------- MANIPULATION DE COMPOSANTS --------------------------- */
/* Fournit le constructeur facilitant l'affichage. */
static PyObject *py_built_named_widget_get_builder(PyObject *, void *);
/* ---------------------------------------------------------------------------------- */
/* GLUE POUR CREATION DEPUIS PYTHON */
/* ---------------------------------------------------------------------------------- */
/******************************************************************************
* *
* Paramètres : type = type du nouvel objet à mettre en place. *
* args = éventuelle liste d'arguments. *
* kwds = éventuel dictionnaire de valeurs mises à disposition. *
* *
* Description : Accompagne la création d'une instance dérivée en Python. *
* *
* Retour : Nouvel objet Python mis en place ou NULL en cas d'échec. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_built_named_widget_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
PyObject *result; /* Objet à retourner */
PyTypeObject *base; /* Type de base à dériver */
bool first_time; /* Evite les multiples passages*/
GType gtype; /* Nouveau type de processeur */
bool status; /* Bilan d'un enregistrement */
/* Validations diverses */
base = get_python_built_named_widget_type();
if (type == base)
goto simple_way;
/* Mise en place d'un type dédié */
first_time = (g_type_from_name(type->tp_name) == 0);
gtype = build_dynamic_type(GTK_TYPE_BUILT_NAMED_WIDGET, type->tp_name, NULL, NULL, NULL);
if (first_time)
{
status = register_class_for_dynamic_pygobject(gtype, type);
if (!status)
{
result = NULL;
goto exit;
}
}
/* On crée, et on laisse ensuite la main à PyGObject_Type.tp_init() */
simple_way:
result = PyType_GenericNew(type, args, kwds);
exit:
return result;
}
/******************************************************************************
* *
* Paramètres : self = objet à initialiser (théoriquement). *
* args = arguments fournis à l'appel. *
* kwds = arguments de type key=val fournis. *
* *
* Description : Initialise une instance sur la base du dérivé de GObject. *
* *
* Retour : 0. *
* *
* Remarques : - *
* *
******************************************************************************/
static int py_built_named_widget_init(PyObject *self, PyObject *args, PyObject *kwds)
{
const char *name; /* Désignation courte à lier */
const char *lname; /* Description longue associée */
const char *path; /* Fichier à charger */
int ret; /* Bilan de lecture des args. */
GtkBuiltNamedWidget *widget; /* Instance native à consulter */
#define BUILT_NAMED_WIDGET_DOC \
"The BuiltNamedWidget object offers a quick way to get a working" \
" implementation of the pychrysalide.glibext.NamedWidget interface by" \
" relying on an external resource file for widgets.\n" \
"\n" \
"These widgets are managed using a Gtk.Builder instance internally.\n" \
"\n" \
"Instances can be created using the following constructor:\n" \
"\n" \
" BuiltNamedWidget(name, lname, filename)" \
"\n" \
"Where *name* is a short description to link to the result, *lname* is" \
" a longer version of this description and *filename* points to the" \
" file containing the widgets definition to load." \
/* Récupération des paramètres */
ret = PyArg_ParseTuple(args, "sss", &name, &lname, &path);
if (!ret) return -1;
/* Initialisation d'un objet GLib */
ret = forward_pygobjet_init(self);
if (ret == -1) return -1;
/* Eléments de base */
widget = GTK_BUILT_NAMED_WIDGET(pygobject_get(self));
widget->name = strdup(name);
widget->lname = strdup(lname);
widget->builder = gtk_builder_new_from_file(path);
return 0;
}
/* ---------------------------------------------------------------------------------- */
/* MANIPULATION DE COMPOSANTS */
/* ---------------------------------------------------------------------------------- */
/******************************************************************************
* *
* Paramètres : self = objet Python concerné par l'appel. *
* closure = non utilisé ici. *
* *
* Description : Fournit le constructeur facilitant l'affichage. *
* *
* Retour : Constructeur mis en place. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_built_named_widget_get_builder(PyObject *self, void *closure)
{
PyObject *result; /* Contenu binaire à retourner */
GtkBuiltNamedWidget *widget; /* Instance native à consulter */
GtkBuilder *builder; /* Constructeur à retourner */
#define BUILT_NAMED_WIDGET_BUILDER_ATTRIB PYTHON_GET_DEF_FULL \
( \
builder, py_built_named_widget, \
"Gtk.Builder instance handling all the widgets loaded from a" \
" resource file, or None in case of loading errors." \
)
widget = GTK_BUILT_NAMED_WIDGET(pygobject_get(self));
builder = gtk_built_named_widget_get_builder(widget);
if (builder != NULL)
{
result = pygobject_new(G_OBJECT(builder));
g_object_unref(G_OBJECT(builder));
}
else
{
result = Py_None;
Py_INCREF(result);
}
return result;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Fournit un accès à une définition de type à diffuser. *
* *
* Retour : Définition d'objet pour Python. *
* *
* Remarques : - *
* *
******************************************************************************/
PyTypeObject *get_python_built_named_widget_type(void)
{
static PyMethodDef py_built_named_widget_methods[] = {
{ NULL }
};
static PyGetSetDef py_built_named_widget_getseters[] = {
BUILT_NAMED_WIDGET_BUILDER_ATTRIB,
{ NULL }
};
static PyTypeObject py_built_named_widget_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "pychrysalide.gtkext.BuiltNamedWidget",
.tp_basicsize = sizeof(PyGObject),
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.tp_doc = BUILT_NAMED_WIDGET_DOC,
.tp_methods = py_built_named_widget_methods,
.tp_getset = py_built_named_widget_getseters,
.tp_init = py_built_named_widget_init,
.tp_new = py_built_named_widget_new
};
return &py_built_named_widget_type;
}
/******************************************************************************
* *
* Paramètres : module = module dont la définition est à compléter. *
* *
* Description : Prend en charge l'objet 'pychrysalide....BuiltNamedWidget'. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
bool ensure_python_built_named_widget_is_registered(void)
{
PyTypeObject *type; /* Type 'BuiltNamedWidget' */
PyObject *module; /* Module à recompléter */
PyObject *dict; /* Dictionnaire du module */
type = get_python_built_named_widget_type();
if (!PyType_HasFeature(type, Py_TPFLAGS_READY))
{
module = get_access_to_python_module("pychrysalide.gtkext");
dict = PyModule_GetDict(module);
if (!ensure_python_named_widget_is_registered())
return false;
if (!register_class_for_pygobject(dict, GTK_TYPE_BUILT_NAMED_WIDGET, type))
return false;
}
return true;
}