Both this patch and the latest version's gtk.py file
call the function _gtk.gtk_tree_item_get_subtree to
access the item's subtree. Where is this function
defined/generated? I see a "set_subtree" gtk function,
but the 'get' operation seems to be provided by the
GTK_TREE_ITEM_SUBTREE(item) macro.
Am I totally daft, or is the wrapper trying to access a
function that doesn't exist?
Regards,
Mike
----- Original Message -----
From: John Ehresman <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, December 09, 1999 1:15 PM
Subject: [pygtk] Patches for GtkTreeItem.subtree
>
> Hi,
>
> I encountered problems when I tried to access the subtree attribute of
> a GtkItem instance. I think I've solved them (I solved my immediate
> problems, at least) by making several changes to pygtk. I've attached
> diffs for gtk.py and generate/generate.py made against the pygtk 0.6.3
> distribution. The changes are:
>
> * A typo corrected in GtkTreeItem.__getattr__ and a wrapper around
> _gtk.gtk_tree_item_get_subtree to convert the C extension object ref to
> a Python class instance.
> * Modified generate.py to emit C code to check for a NULL GtkObject when
> returning a field of the GtkObject. If NULL is found, a reference to
> the Python None object is returned.
> * Modified _obj2inst in gtk.py to return None if the input argument is
> None.
>
> With these changes, the subtree attribute will be None if the item does
> not have a subtree, and a GtkTree instance if it does.
>
> Thanks to all the people who have contributed to pygtk, especially James
> Henstridge.
>
> John
>
> diff -c for gtk.py
> *** gtk.py Fri Dec 3 15:32:24 1999
> --- /home/jpe/down/pygtk-0.6.3/gtk.py Thu Sep 30 01:33:14 1999
> ***************
> *** 782,791 ****
> self._o = _gtk.gtk_tree_item_new_with_label(label)
> def __getattr__(self, attr):
> attrs = {
> ! 'subtree': (lambda o:
> ! _obj2inst(_gtk.gtk_tree_item_get_subtree(o)))
> }
> ! if attrs.has_key(attr):
> return attrs[attr](self._o)
> return GtkItem.__getattr__(self, attr)
> def set_subtree(self, subtree):
> --- 782,790 ----
> self._o = _gtk.gtk_tree_item_new_with_label(label)
> def __getattr__(self, attr):
> attrs = {
> ! 'subtree': _gtk.gtk_tree_item_get_subtree,
> }
> ! if attrs.has_key(attrs):
> return attrs[attr](self._o)
> return GtkItem.__getattr__(self, attr)
> def set_subtree(self, subtree):
> ***************
> *** 2484,2491 ****
> _gtk.gtk_accel_group_remove(self._ag, key, mods, obj._o)
>
> def _obj2inst(obj):
> - if obj == None:
> - return None
> objname = _gtk.gtk_type_name(_gtk.GTK_OBJECT_TYPE(obj))
> if _name2cls.has_key(objname):
> return _name2cls[objname](_obj=obj)
> --- 2483,2488 ----
>
> diff -c for generate/generate.py:
> *** generate/generate.py Fri Dec 3 15:24:46 1999
> --- /home/jpe/down/pygtk-0.6.3/generate/generate.py Thu Sep 30
> 01:33:15 1999
> ***************
> *** 421,435 ****
> impl.write(funcCall)
> impl.write(');\n')
> elif retType in objects.keys():
> ! impl.write(' {\n')
> ! impl.write(' GtkObject* _o = (GtkObject*)')
> ! impl.write(funcCall)
> ! impl.write(';\n')
> ! impl.write(' if ( _o != NULL )\n')
> ! impl.write(' return PyGtk_New(_o);\n')
> ! impl.write(' Py_INCREF(Py_None);\n')
> ! impl.write(' return Py_None;\n')
> ! impl.write(' }\n')
> else:
> print "%s: unknown return type '%s'" % (name,
retType)
> return 1
> --- 421,429 ----
> impl.write(funcCall)
> impl.write(');\n')
> elif retType in objects.keys():
> ! impl.write(' return PyGtk_New((GtkObject *)')
> ! impl.write(funcCall)
> ! impl.write(');\n')
> else:
> print "%s: unknown return type '%s'" % (name,
retType)
> return 1
>
>
>
>
>
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