Ported the panel update mechanisms to the Python API.

5 files changed, 941 insertions, 0 deletions

diff --git a/plugins/pychrysalide/gui/panels/Makefile.am b/plugins/pychrysalide/gui/panels/Makefile.am
new file mode 100644
index 0000000..a6e3635
--- /dev/null
+++ b/plugins/pychrysalide/gui/panels/Makefile.am
@@ -0,0 +1,19 @@
+
+noinst_LTLIBRARIES = libpychrysaguipanels.la
+
+libpychrysaguipanels_la_SOURCES =		\
+	module.h module.c					\
+	updating.h updating.c
+
+libpychrysaguipanels_la_LDFLAGS = 
+
+
+devdir = $(includedir)/chrysalide-$(subdir)
+
+dev_HEADERS = $(libpychrysaguipanels_la_SOURCES:%c=)
+
+
+AM_CPPFLAGS = $(LIBGTK_CFLAGS) $(LIBXML_CFLAGS) $(LIBPYTHON_CFLAGS) $(LIBPYGOBJECT_CFLAGS) \
+	-I$(top_srcdir)/src
+
+AM_CFLAGS = $(DEBUG_CFLAGS) $(WARNING_FLAGS) $(COMPLIANCE_FLAGS)
diff --git a/plugins/pychrysalide/gui/panels/module.c b/plugins/pychrysalide/gui/panels/module.c
new file mode 100644
index 0000000..f904188
--- /dev/null
+++ b/plugins/pychrysalide/gui/panels/module.c
@@ -0,0 +1,101 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * module.c - intégration du répertoire panels en tant que module
+ *
+ * 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 "module.h"
+
+
+#include <assert.h>
+
+
+#include "updating.h"
+#include "../../helpers.h"
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : super = module dont la définition est à compléter.           *
+*                                                                             *
+*  Description : Ajoute le module 'gui.panels' à un module Python.            *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool add_gui_panels_module(PyObject *super)
+{
+    bool result;                            /* Bilan à retourner           */
+    PyObject *module;                       /* Sous-module mis en place    */
+
+#define PYCHRYSALIDE_GUI_PANELS_DOC                                     \
+    "This module defines all the core panels and their helper class"    \
+    " pychrysalide.gui.panels.UpdatablePanel as well."
+
+    static PyModuleDef py_chrysalide_gui_panels_module = {
+
+        .m_base = PyModuleDef_HEAD_INIT,
+
+        .m_name = "pychrysalide.gui.panels",
+        .m_doc  = PYCHRYSALIDE_GUI_PANELS_DOC,
+
+        .m_size = -1,
+
+    };
+
+    module = build_python_module(super, &py_chrysalide_gui_panels_module);
+
+    result = (module != NULL);
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : -                                                            *
+*                                                                             *
+*  Description : Intègre les objets du module 'gui.panels'.                   *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool populate_gui_panels_module(void)
+{
+    bool result;                            /* Bilan à retourner           */
+
+    result = true;
+
+    if (result) result = ensure_python_updatable_panel_is_registered();
+
+    assert(result);
+
+    return result;
+
+}
diff --git a/plugins/pychrysalide/gui/panels/module.h b/plugins/pychrysalide/gui/panels/module.h
new file mode 100644
index 0000000..e926107
--- /dev/null
+++ b/plugins/pychrysalide/gui/panels/module.h
@@ -0,0 +1,42 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * module.h - prototypes pour l'intégration du répertoire panels en tant que module
+ *
+ * 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
+ */
+
+
+#ifndef _PLUGINS_PYCHRYSALIDE_GUI_PANELS_MODULE_H
+#define _PLUGINS_PYCHRYSALIDE_GUI_PANELS_MODULE_H
+
+
+#include <Python.h>
+#include <stdbool.h>
+
+
+
+/* Ajoute le module 'gui.panels' à un module Python. */
+bool add_gui_panels_module(PyObject *);
+
+/* Intègre les objets du module 'gui.panels'. */
+bool populate_gui_panels_module(void);
+
+
+
+#endif  /* _PLUGINS_PYCHRYSALIDE_GUI_PANELS_MODULE_H */
diff --git a/plugins/pychrysalide/gui/panels/updating.c b/plugins/pychrysalide/gui/panels/updating.c
new file mode 100644
index 0000000..5898575
--- /dev/null
+++ b/plugins/pychrysalide/gui/panels/updating.c
@@ -0,0 +1,734 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * updating.c - équivalent Python du fichier "gui/panels/updating.h"
+ *
+ * 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 "updating.h"
+
+
+#include <pygobject.h>
+
+
+#include <core/queue.h>
+#include <gui/panels/updating-int.h>
+
+
+#include "../../access.h"
+#include "../../helpers.h"
+
+
+
+/* ------------------------ GLUE POUR CREATION DEPUIS PYTHON ------------------------ */
+
+
+/* Procède à l'initialisation de l'interface de génération. */
+static void py_updatable_panel_interface_init(GUpdatablePanelIface *, gpointer *);
+
+/* Prépare une opération de mise à jour de panneau. */
+static bool py_updatable_panel_setup_wrapper(const GUpdatablePanel *, unsigned int, size_t *, void **, char **);
+
+/* Obtient le groupe de travail dédié à une mise à jour. */
+static wgroup_id_t py_updatable_panel_get_group_wrapper(const GUpdatablePanel *);
+
+/* Bascule l'affichage d'un panneau avant mise à jour. */
+static void py_updatable_panel_introduce_wrapper(const GUpdatablePanel *, unsigned int, void *);
+
+/* Réalise une opération de mise à jour de panneau. */
+static void py_updatable_panel_process_wrapper(const GUpdatablePanel *, unsigned int, GtkStatusStack *, activity_id_t, void *);
+
+/* Bascule l'affichage d'un panneau après mise à jour. */
+static void py_updatable_panel_conclude_wrapper(GUpdatablePanel *, unsigned int, void *);
+
+/* Supprime les données dynamiques utilisées à la mise à jour. */
+static void py_updatable_panel_clean_data_wrapper(const GUpdatablePanel *, unsigned int, void *);
+
+
+
+/* ------------------------- CONNEXION AVEC L'API DE PYTHON ------------------------- */
+
+
+/* Prépare et lance l'actualisation d'un panneau. */
+static PyObject *py_updatable_panel_run_update(PyObject *, PyObject *);
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/*                          GLUE POUR CREATION DEPUIS PYTHON                          */
+/* ---------------------------------------------------------------------------------- */
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : iface  = interface GLib à initialiser.                       *
+*                unused = adresse non utilisée ici.                           *
+*                                                                             *
+*  Description : Procède à l'initialisation de l'interface de génération.     *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void py_updatable_panel_interface_init(GUpdatablePanelIface *iface, gpointer *unused)
+{
+
+#define UPDATABLE_PANEL_DOC                                                 \
+    "UpdatablePanel defines an interface as helper for panels updates."     \
+    " Panels contents can thus get hidden then restored easily once data"   \
+    " is fully processed.\n"                                                \
+    "\n"                                                                    \
+    "A typical class declaration for a new implementation looks like:\n"    \
+    "\n"                                                                    \
+    "    class NewImplem(GObject.Object, UpdatablePanel):\n"                \
+    "        ...\n"                                                         \
+    "\n"                                                                    \
+    "The following methods have to be defined for new implementations:\n"   \
+    "* pychrysalide.gui.panels.UpdatablePanel._setup();\n"                  \
+    "* pychrysalide.gui.panels.UpdatablePanel._introduce();\n"              \
+    "* pychrysalide.gui.panels.UpdatablePanel._process();\n"                \
+    "* pychrysalide.gui.panels.UpdatablePanel._conclude();\n"               \
+    "* pychrysalide.gui.panels.UpdatablePanel._clean_data().\n"             \
+    "\n"                                                                    \
+    "The following attribute has to be defined for new implementations:\n"  \
+    "* pychrysalide.gui.panels.UpdatablePanel._working_group_id.\n"         \
+
+    iface->setup = py_updatable_panel_setup_wrapper;
+    iface->get_group = py_updatable_panel_get_group_wrapper;
+    iface->introduce = py_updatable_panel_introduce_wrapper;
+    iface->process = py_updatable_panel_process_wrapper;
+    iface->conclude = py_updatable_panel_conclude_wrapper;
+    iface->clean = py_updatable_panel_clean_data_wrapper;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : panel = panneau ciblé par une mise à jour.                   *
+*                uid   = identifiant de la phase de traitement.               *
+*                count = nombre d'étapes à prévoir dans le traitement. [OUT]  *
+*                data  = données sur lesquelles s'appuyer ensuite. [OUT]      *
+*                msg   = description du message d'information. [OUT]          *
+*                                                                             *
+*  Description : Prépare une opération de mise à jour de panneau.             *
+*                                                                             *
+*  Retour      : Bilan de la préparation.                                     *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static bool py_updatable_panel_setup_wrapper(const GUpdatablePanel *panel, unsigned int uid, size_t *count, void **data, char **msg)
+{
+    bool result;                            /* Bilan à retourner           */
+    PyGILState_STATE gstate;                /* Sauvegarde d'environnement  */
+    PyObject *pyobj;                        /* Objet Python concerné       */
+    PyObject *args;                         /* Arguments pour l'appel      */
+    PyObject *pyret;                        /* Bilan de consultation       */
+    PyObject *item;                         /* Elément obtenu              */
+
+#define UPDATABLE_PANEL_SETUP_WRAPPER PYTHON_WRAPPER_DEF                    \
+(                                                                           \
+    _setup, "$self, uid, /",                                                \
+    METH_VARARGS,                                                           \
+    "Abstract method used to prepare an update process for a panel.\n"      \
+    "\n"                                                                    \
+    "The *uid* identifier is an arbitrary number identifying the update"    \
+    " process.\n"                                                           \
+    "\n"                                                                    \
+    "The expected result is a tuple containing three items:\n"              \
+    "* the number of items to be processed, in order to synchronize with"   \
+    " the progress shown in the status bar;\n"                              \
+    "* an optional object used to store final result (or None);\n"          \
+    "* a text message to display as the name of the update operation."      \
+)
+
+    result = false;
+
+    gstate = PyGILState_Ensure();
+
+    pyobj = pygobject_new(G_OBJECT(panel));
+
+    if (has_python_method(pyobj, "_setup"))
+    {
+        args = PyTuple_New(1);
+        PyTuple_SetItem(args, 0, PyLong_FromUnsignedLong(uid));
+
+        pyret = run_python_method(pyobj, "_setup", args);
+
+        if (!PyTuple_Check(pyret) || PyTuple_Size(pyret) != 3)
+        {
+            PyErr_SetString(PyExc_ValueError, "the provided quantity has to be a tuple with three items");
+            goto exit;
+        }
+
+        item = PyTuple_GetItem(pyret, 0);
+        if (!PyLong_Check(item)) goto exit;
+
+        *count = PyLong_AsUnsignedLongLong(item);
+
+        item = PyTuple_GetItem(pyret, 1);
+
+        Py_INCREF(item);
+        *data = item;
+
+        item = PyTuple_GetItem(pyret, 2);
+        if (!PyUnicode_Check(item))
+        {
+            Py_DECREF(item);
+            *data = NULL;
+            goto exit;
+        }
+
+        *msg = strdup(PyUnicode_AsUTF8(item));
+
+        result = true;
+
+    exit:
+
+        Py_XDECREF(pyret);
+
+        Py_DECREF(args);
+
+    }
+
+    Py_DECREF(pyobj);
+
+    PyGILState_Release(gstate);
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : panel = panneau ciblé par une mise à jour.                   *
+*                                                                             *
+*  Description : Obtient le groupe de travail dédié à une mise à jour.        *
+*                                                                             *
+*  Retour      : Identifiant de groupe de travail.                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static wgroup_id_t py_updatable_panel_get_group_wrapper(const GUpdatablePanel *panel)
+{
+    wgroup_id_t result;                     /* Identifiant à retourner     */
+    PyGILState_STATE gstate;                /* Sauvegarde d'environnement  */
+    PyObject *pyobj;                        /* Objet Python concerné       */
+    PyObject *pyattr;                       /* Attribut de l'objet Python  */
+    int ret;                                /* Bilan d'une conversion      */
+
+#define UPDATABLE_PANEL_WORKING_GROUP_ID_ATTRIB_WRAPPER PYTHON_GETTER_WRAPPER_DEF   \
+(                                                                                   \
+    _working_group_id,                                                              \
+    "Identifier of a dedicated working group processing panel update jobs.\n"       \
+    "\n"                                                                            \
+    "The result has to be an integer."                                              \
+)
+
+    result = DEFAULT_WORK_GROUP;
+
+    gstate = PyGILState_Ensure();
+
+    pyobj = pygobject_new(G_OBJECT(panel));
+
+    if (PyObject_HasAttrString(pyobj, "_working_group_id"))
+    {
+        pyattr = PyObject_GetAttrString(pyobj, "_working_group_id");
+
+        if (pyattr != NULL)
+        {
+            ret = PyLong_Check(pyattr);
+
+            if (ret)
+                result = PyLong_AsUnsignedLongLong(pyattr);
+
+            Py_DECREF(pyattr);
+
+        }
+
+    }
+
+    Py_DECREF(pyobj);
+
+    PyGILState_Release(gstate);
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : panel = panneau ciblé par une mise à jour.                   *
+*                uid   = identifiant de la phase de traitement.               *
+*                data  = données préparées par l'appelant.                    *
+*                                                                             *
+*  Description : Bascule l'affichage d'un panneau avant mise à jour.          *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void py_updatable_panel_introduce_wrapper(const GUpdatablePanel *panel, unsigned int uid, void *data)
+{
+    PyGILState_STATE gstate;                /* Sauvegarde d'environnement  */
+    PyObject *pyobj;                        /* Objet Python concerné       */
+    PyObject *pydata;                       /* Données au format Python    */
+    PyObject *args;                         /* Arguments pour l'appel      */
+    PyObject *pyret;                        /* Bilan de consultation       */
+
+#define UPDATABLE_PANEL_INTRODUCE_WRAPPER PYTHON_WRAPPER_DEF                \
+(                                                                           \
+    _introduce, "$self, uid, data, /",                                      \
+    METH_VARARGS,                                                           \
+    "Abstract method used to introduce the update process; display switch"  \
+    " is here an option.\n"                                                 \
+    "\n"                                                                    \
+    "The *uid* identifier is the same identifier provided for a previous"   \
+    " call to pychrysalide.gui.panels.UpdatablePanel._setup(), and *data*"  \
+    " is an optional object instance."                                      \
+)
+
+    gstate = PyGILState_Ensure();
+
+    pyobj = pygobject_new(G_OBJECT(panel));
+    pydata = (PyObject *)data;
+
+    if (has_python_method(pyobj, "_introduce"))
+    {
+        Py_INCREF(pydata);
+
+        args = PyTuple_New(2);
+        PyTuple_SetItem(args, 0, PyLong_FromUnsignedLong(uid));
+        PyTuple_SetItem(args, 1, pydata);
+
+        pyret = run_python_method(pyobj, "_introduce", args);
+
+        Py_XDECREF(pyret);
+
+        Py_DECREF(args);
+
+    }
+
+    Py_DECREF(pyobj);
+
+    PyGILState_Release(gstate);
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : panel  = panneau ciblé par une mise à jour.                  *
+*                uid    = identifiant de la phase de traitement.              *
+*                status = barre de statut à tenir informée.                   *
+*                id     = identifiant pour le suivi de la progression.        *
+*                data   = données préparées par l'appelant.                   *
+*                                                                             *
+*  Description : Réalise une opération de mise à jour de panneau.             *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void py_updatable_panel_process_wrapper(const GUpdatablePanel *panel, unsigned int uid, GtkStatusStack *status, activity_id_t id, void *data)
+{
+    PyGILState_STATE gstate;                /* Sauvegarde d'environnement  */
+    PyObject *pyobj;                        /* Objet Python concerné       */
+    PyObject *pydata;                       /* Données au format Python    */
+    PyObject *args;                         /* Arguments pour l'appel      */
+    PyObject *pyret;                        /* Bilan de consultation       */
+
+#define UPDATABLE_PANEL_PROCESS_WRAPPER PYTHON_WRAPPER_DEF                  \
+(                                                                           \
+    _process, "$self, uid, status, id, data, /",                            \
+    METH_VARARGS,                                                           \
+    "Abstract method used to perform the computing of data to render.\n"    \
+    "\n"                                                                    \
+    "The *uid* identifier is the same identifier provided for a previous"   \
+    " call to pychrysalide.gui.panels.UpdatablePanel._setup(), *status* is" \
+    " a pychrysalide.gtkext.StatusStack instance, *id* refers to the"       \
+    " identifier for message display inside the status bar and *data* is"   \
+    " an optional object instance.\n"                                       \
+    "\n"                                                                    \
+    "The method is called from a dedicated processing thread."              \
+)
+
+    gstate = PyGILState_Ensure();
+
+    pyobj = pygobject_new(G_OBJECT(panel));
+    pydata = (PyObject *)data;
+
+    if (has_python_method(pyobj, "_process"))
+    {
+        Py_INCREF(pydata);
+
+        args = PyTuple_New(4);
+        PyTuple_SetItem(args, 0, PyLong_FromUnsignedLong(uid));
+        PyTuple_SetItem(args, 1, pygobject_new(G_OBJECT(status)));
+        PyTuple_SetItem(args, 2, PyLong_FromUnsignedLong(id));
+        PyTuple_SetItem(args, 3, pydata);
+
+        pyret = run_python_method(pyobj, "_process", args);
+
+        Py_XDECREF(pyret);
+
+        Py_DECREF(args);
+
+    }
+
+    Py_DECREF(pyobj);
+
+    PyGILState_Release(gstate);
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : panel = panneau ciblé par une mise à jour.                   *
+*                uid   = identifiant de la phase de traitement.               *
+*                data  = données préparées par l'appelant.                    *
+*                                                                             *
+*  Description : Bascule l'affichage d'un panneau après mise à jour.          *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void py_updatable_panel_conclude_wrapper(GUpdatablePanel *panel, unsigned int uid, void *data)
+{
+    PyGILState_STATE gstate;                /* Sauvegarde d'environnement  */
+    PyObject *pyobj;                        /* Objet Python concerné       */
+    PyObject *pydata;                       /* Données au format Python    */
+    PyObject *args;                         /* Arguments pour l'appel      */
+    PyObject *pyret;                        /* Bilan de consultation       */
+
+#define UPDATABLE_PANEL_CONCLUDE_WRAPPER PYTHON_WRAPPER_DEF                 \
+(                                                                           \
+    _conclude, "$self, uid, data, /",                                       \
+    METH_VARARGS,                                                           \
+    "Abstract method used to conclude the update process and to display"    \
+    " the computed data.\n"                                                 \
+    "\n"                                                                    \
+    "The *uid* identifier is the same identifier provided for a previous"   \
+    " call to pychrysalide.gui.panels.UpdatablePanel._setup(), and *data*"  \
+    " is an optional object instance."                                      \
+)
+
+    gstate = PyGILState_Ensure();
+
+    pyobj = pygobject_new(G_OBJECT(panel));
+    pydata = (PyObject *)data;
+
+    if (has_python_method(pyobj, "_conclude"))
+    {
+        Py_INCREF(pydata);
+
+        args = PyTuple_New(2);
+        PyTuple_SetItem(args, 0, PyLong_FromUnsignedLong(uid));
+        PyTuple_SetItem(args, 1, pydata);
+
+        pyret = run_python_method(pyobj, "_conclude", args);
+
+        Py_XDECREF(pyret);
+
+        Py_DECREF(args);
+
+    }
+
+    Py_DECREF(pyobj);
+
+    PyGILState_Release(gstate);
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : panel = panneau ciblé par une mise à jour.                   *
+*                uid   = identifiant de la phase de traitement.               *
+*                data  = données en place à nettoyer avant suppression.       *
+*                                                                             *
+*  Description : Supprime les données dynamiques utilisées à la mise à jour.  *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void py_updatable_panel_clean_data_wrapper(const GUpdatablePanel *panel, unsigned int uid, void *data)
+{
+    PyGILState_STATE gstate;                /* Sauvegarde d'environnement  */
+    PyObject *pyobj;                        /* Objet Python concerné       */
+    PyObject *pydata;                       /* Données au format Python    */
+    PyObject *args;                         /* Arguments pour l'appel      */
+    PyObject *pyret;                        /* Bilan de consultation       */
+
+#define UPDATABLE_PANEL_CLEAN_DATA_WRAPPER PYTHON_WRAPPER_DEF               \
+(                                                                           \
+    _clean_data, "$self, uid, data, /",                                     \
+    METH_VARARGS,                                                           \
+    "Abstract method used to delete dynamically generated objects for the"  \
+    " panel update.\n"                                                      \
+    "\n"                                                                    \
+    "The *uid* identifier is the same identifier provided for a previous"   \
+    " call to pychrysalide.gui.panels.UpdatablePanel._setup(), and *data*"  \
+    " is an optional object instance.\n"                                    \
+    "\n"                                                                    \
+    "As the user *data* reference counter is decreased automatically after" \
+    " this wrapper is called (if existing), there should be no need to"     \
+    " define such a wrapper, except if the panel needs some kind of"        \
+    " notification at the end of the update or if it still owns a reference"\
+    " to this *data*."                                                      \
+)
+
+    gstate = PyGILState_Ensure();
+
+    pyobj = pygobject_new(G_OBJECT(panel));
+    pydata = (PyObject *)data;
+
+    if (has_python_method(pyobj, "_clean_data"))
+    {
+        Py_INCREF(pydata);
+
+        args = PyTuple_New(2);
+        PyTuple_SetItem(args, 0, PyLong_FromUnsignedLong(uid));
+        PyTuple_SetItem(args, 1, pydata);
+
+        pyret = run_python_method(pyobj, "_clean_data", args);
+
+        Py_XDECREF(pyret);
+
+        Py_DECREF(args);
+
+    }
+
+    Py_DECREF(pydata);
+    Py_DECREF(pyobj);
+
+    PyGILState_Release(gstate);
+
+}
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/*                           CONNEXION AVEC L'API DE PYTHON                           */
+/* ---------------------------------------------------------------------------------- */
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : self = NULL car méthode statique.                            *
+*                args = paramètres à transmettre à l'appel natif.             *
+*                                                                             *
+*  Description : Prépare et lance l'actualisation d'un panneau.               *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static PyObject *py_updatable_panel_run_update(PyObject *self, PyObject *args)
+{
+    PyObject *result;                       /* Désignation à retourner     */
+    unsigned int uid;                       /* Identifiant de mise à jour  */
+    int ret;                                /* Bilan de lecture des args.  */
+    GUpdatablePanel *panel;                 /* Instance à manipuler        */
+
+#define UPDATABLE_PANEL_RUN_UPDATE_METHOD PYTHON_METHOD_DEF \
+(                                                           \
+    run_update, "self, uid, /",                             \
+    METH_VARARGS, py_updatable_panel,                       \
+    "Prepare and run an update for the panel.\n"            \
+    "\n"                                                    \
+    "The *uid* argument is an arbitrary integer provided"   \
+    " as internal identifier for the caller."               \
+)
+
+    ret = PyArg_ParseTuple(args, "I", &uid);
+    if (!ret) return NULL;
+
+    panel = G_UPDATABLE_PANEL(pygobject_get(self));
+
+    run_panel_update(panel, uid);
+
+    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_updatable_panel_type(void)
+{
+    static PyMethodDef py_updatable_panel_methods[] = {
+        UPDATABLE_PANEL_SETUP_WRAPPER,
+        UPDATABLE_PANEL_INTRODUCE_WRAPPER,
+        UPDATABLE_PANEL_PROCESS_WRAPPER,
+        UPDATABLE_PANEL_CONCLUDE_WRAPPER,
+        UPDATABLE_PANEL_CLEAN_DATA_WRAPPER,
+        UPDATABLE_PANEL_RUN_UPDATE_METHOD,
+        { NULL }
+    };
+
+    static PyGetSetDef py_updatable_panel_getseters[] = {
+        UPDATABLE_PANEL_WORKING_GROUP_ID_ATTRIB_WRAPPER,
+        { NULL }
+    };
+
+    static PyTypeObject py_updatable_panel_type = {
+
+        PyVarObject_HEAD_INIT(NULL, 0)
+
+        .tp_name        = "pychrysalide.gui.panels.UpdatablePanel",
+        .tp_basicsize   = sizeof(PyObject),
+
+        .tp_flags       = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+
+        .tp_doc         = UPDATABLE_PANEL_DOC,
+
+        .tp_methods     = py_updatable_panel_methods,
+        .tp_getset      = py_updatable_panel_getseters,
+
+    };
+
+    return &py_updatable_panel_type;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : module = module dont la définition est à compléter.          *
+*                                                                             *
+*  Description : Prend en charge l'objet 'pychrysalide.gui....UpdatablePanel'.*
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool ensure_python_updatable_panel_is_registered(void)
+{
+    PyTypeObject *type;                     /* Type Python 'LineGenerator' */
+    PyObject *module;                       /* Module à recompléter        */
+    PyObject *dict;                         /* Dictionnaire du module      */
+
+    static GInterfaceInfo info = {          /* Paramètres d'inscription    */
+
+        .interface_init = (GInterfaceInitFunc)py_updatable_panel_interface_init,
+        .interface_finalize = NULL,
+        .interface_data = NULL,
+
+    };
+
+    type = get_python_updatable_panel_type();
+
+    if (!PyType_HasFeature(type, Py_TPFLAGS_READY))
+    {
+        module = get_access_to_python_module("pychrysalide.gui.panels");
+
+        dict = PyModule_GetDict(module);
+
+        if (!register_interface_for_pygobject(dict, G_TYPE_UPDATABLE_PANEL, type, &info))
+            return false;
+
+    }
+
+    return true;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : arg = argument quelconque à tenter de convertir.             *
+*                dst = destination des valeurs récupérées en cas de succès.   *
+*                                                                             *
+*  Description : Tente de convertir en mécanisme de mise à jour de panneau.   *
+*                                                                             *
+*  Retour      : Bilan de l'opération, voire indications supplémentaires.     *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+int convert_to_updatable_panel(PyObject *arg, void *dst)
+{
+    int result;                             /* Bilan à retourner           */
+
+    result = PyObject_IsInstance(arg, (PyObject *)get_python_updatable_panel_type());
+
+    switch (result)
+    {
+        case -1:
+            /* L'exception est déjà fixée par Python */
+            result = 0;
+            break;
+
+        case 0:
+            PyErr_SetString(PyExc_TypeError, "unable to convert the provided argument to updatable panel");
+            break;
+
+        case 1:
+            *((GUpdatablePanel **)dst) = G_UPDATABLE_PANEL(pygobject_get(arg));
+            break;
+
+        default:
+            assert(false);
+            break;
+
+    }
+
+    return result;
+
+}
diff --git a/plugins/pychrysalide/gui/panels/updating.h b/plugins/pychrysalide/gui/panels/updating.h
new file mode 100644
index 0000000..a9e5799
--- /dev/null
+++ b/plugins/pychrysalide/gui/panels/updating.h
@@ -0,0 +1,45 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * updating.h - prototypes pour l'équivalent Python du fichier "gui/panels/updating.h"
+ *
+ * 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
+ */
+
+
+#ifndef _PLUGINS_PYCHRYSALIDE_GUI_PANELS_UPDATING_H
+#define _PLUGINS_PYCHRYSALIDE_GUI_PANELS_UPDATING_H
+
+
+#include <Python.h>
+#include <stdbool.h>
+
+
+
+/* Fournit un accès à une définition de type à diffuser. */
+PyTypeObject *get_python_updatable_panel_type(void);
+
+/* Prend en charge l'objet 'pychrysalide.gui.panels.UpdatablePanel'. */
+bool ensure_python_updatable_panel_is_registered(void);
+
+/* Tente de convertir en générateur de lignes. */
+int convert_to_updatable_panel(PyObject *, void *);
+
+
+
+#endif  /* _PLUGINS_PYCHRYSALIDE_GUI_PANELS_UPDATING_H */