use introspection instead of ctype to use gtkspell

src/gtkspell.py

@@ -1,6 +1,7 @@
 ## src/gtkspell.py
 ##
 ## (C) 2008 Thorsten P. 'dGhvcnN0ZW5wIEFUIHltYWlsIGNvbQ==\n'.decode("base64")
+## (C) 2015 Yann Leboulanger <asterix AT lagaule.org>
 ##
 ## This file is part of Gajim.
 ##
@@ -16,40 +17,8 @@
 ## You should have received a copy of the GNU General Public License
 ## along with Gajim. If not, see <http://www.gnu.org/licenses/>.
 
-import ctypes
-import ctypes.util
-
 from gi.repository import Gtk
-
+from gi.repository import GtkSpell
-
-gboolean = ctypes.c_int
-gchar_p = ctypes.c_char_p
-gerror_p = ctypes.c_void_p
-gobject_p = ctypes.c_void_p
-gtkspell_p = ctypes.c_void_p
-gtktextview_p = ctypes.c_void_p
-
-
-class PyGObject(ctypes.Structure):
-    _fields_ = [
-            ("PyObject_HEAD", ctypes.c_byte * object.__basicsize__),
-            ("obj", gobject_p)
-    ]
-
-
-libgtkspell_path = ctypes.util.find_library("gtkspell")
-if libgtkspell_path == None:
-    raise ImportError("libgtkspell not found")
-libgtkspell = ctypes.cdll.LoadLibrary(libgtkspell_path)
-libgtkspell.gtkspell_new_attach.restype = gtkspell_p
-libgtkspell.gtkspell_new_attach.argtypes = [gtktextview_p, gchar_p, gerror_p]
-libgtkspell.gtkspell_set_language.restype = gboolean
-libgtkspell.gtkspell_set_language.argtypes = [gtkspell_p, gchar_p, gerror_p]
-libgtkspell.gtkspell_recheck_all.argtypes = [gtkspell_p]
-libgtkspell.gtkspell_get_from_text_view.restype = gtkspell_p
-libgtkspell.gtkspell_get_from_text_view.argtypes = [gtktextview_p]
-libgtkspell.gtkspell_detach.argtypes = [gtkspell_p]
-
 
 def ensure_attached(func):
     def f(self, *args, **kwargs):
@@ -65,16 +34,18 @@ class Spell(object):
     def __init__(self, textview, language=None, create=True):
         if not isinstance(textview, Gtk.TextView):
             raise TypeError("Textview must be derived from Gtk.TextView")
-        tv = PyGObject.from_address(id(textview)).obj
+        spell = GtkSpell.Checker.get_from_text_view(textview)
-        spell = libgtkspell.gtkspell_get_from_text_view(tv)
         if create:
             if spell:
                 raise RuntimeError("Textview has already a Spell obj attached")
-            self.spell = libgtkspell.gtkspell_new_attach(tv, language.encode(
+            self.spell = GtkSpell.Checker.new()
-                'utf-8'), None)
             if not self.spell:
-                raise OSError("Unable to attach spell object. "
+                raise OSError("Unable to create spell object.")
-                              "Language: '%s'" % str(language))
+            if not self.spell.attach(textview):
+                raise OSError("Unable to attach spell object.")
+            if not self.spell.set_language(language):
+                raise OSError("Unable to set language: '%s'" % language)
+
         else:
             if spell:
                 self.spell = spell
@@ -83,17 +54,16 @@ class Spell(object):
 
     @ensure_attached
     def set_language(self, language):
-        if libgtkspell.gtkspell_set_language(self.spell, language.encode(
+        if not self.spell.set_language(language):
-        'utf-8'), None) == 0:
+            raise OSError("Unable to set language: '%s'" % language)
-            raise OSError("Unable to set language '%s'" % str(language))
 
     @ensure_attached
     def recheck_all(self):
-        libgtkspell.gtkspell_recheck_all(self.spell)
+        self.spell.recheck_all()
 
     @ensure_attached
     def detach(self):
-        libgtkspell.gtkspell_detach(self.spell)
+        self.spell.detach()
         self.spell = None