7 /* Copyright (C) 1998-2002 The gtkmm Development Team
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the Free
21 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <glib-object.h>
25 #include <glibmm/refptr.h>
34 // Type of the per-class wrap_new() functions.
35 typedef Glib::ObjectBase* (*WrapNewFunction) (GObject*);
37 // Setup and free the structures used by wrap_register().
38 // Both functions might be called more than once.
39 void wrap_register_init();
40 void wrap_register_cleanup();
42 // Register a new type for auto allocation.
43 void wrap_register(GType type, WrapNewFunction func);
45 // Return the current C++ wrapper instance of the GObject,
46 // or automatically generate a new wrapper if there's none.
47 Glib::ObjectBase* wrap_auto(GObject* object, bool take_copy = false);
49 // Get a C++ instance that wraps the C instance.
50 // This always returns the same C++ instance for the same C instance.
51 // Each wrapper has it's own override of Glib::wrap().
52 // use take_copy = true when wrapping a struct member.
53 // TODO: move to object.h ?
54 /** @relates Glib::Object */
55 Glib::RefPtr<Glib::Object> wrap(GObject* object, bool take_copy = false);
58 /** Get the underlying C instance from the C++ instance. This is just
59 * like calling gobj(), but it does its own check for a NULL pointer.
61 template <class T> inline
62 typename T::BaseObjectType* unwrap(T* ptr)
64 return (ptr) ? ptr->gobj() : 0;
67 /** Get the underlying C instance from the C++ instance. This is just
68 * like calling gobj(), but it does its own check for a NULL pointer.
70 template <class T> inline
71 const typename T::BaseObjectType* unwrap(const T* ptr)
73 return (ptr) ? ptr->gobj() : 0;
76 /** Get the underlying C instance from the C++ instance. This is just
77 * like calling gobj(), but it does its own check for a NULL pointer.
79 template <class T> inline
80 typename T::BaseObjectType* unwrap(const Glib::RefPtr<T>& ptr)
82 return (ptr) ? ptr->gobj() : 0;
85 /** Get the underlying C instance from the C++ instance. This is just
86 * like calling gobj(), but it does its own check for a NULL pointer.
88 template <class T> inline
89 const typename T::BaseObjectType* unwrap(const Glib::RefPtr<const T>& ptr)
91 return (ptr) ? ptr->gobj() : 0;
94 /** Get the underlying C instance from the C++ instance and acquire a
95 * reference. This is just like calling gobj_copy(), but it does its own
96 * check for a NULL pointer.
98 template <class T> inline
99 typename T::BaseObjectType* unwrap_copy(const Glib::RefPtr<T>& ptr)
101 return (ptr) ? ptr->gobj_copy() : 0;
104 /** Get the underlying C instance from the C++ instance and acquire a
105 * reference. This is just like calling gobj_copy(), but it does its own
106 * check for a NULL pointer.
108 template <class T> inline
109 const typename T::BaseObjectType* unwrap_copy(const Glib::RefPtr<const T>& ptr)
111 return (ptr) ? ptr->gobj_copy() : 0;
117 #endif /* _GLIBMM_WRAP_H */