michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* vim:expandtab:shiftwidth=4:tabstop=4:
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsGtkUtils_h__
michael@0: #define nsGtkUtils_h__
michael@0: 
michael@0: #include <glib.h>
michael@0: 
michael@0: // Some gobject functions expect functions for gpointer arguments.
michael@0: // gpointer is void* but C++ doesn't like casting functions to void*.
michael@0: template<class T> static inline gpointer
michael@0: FuncToGpointer(T aFunction)
michael@0: {
michael@0:     return reinterpret_cast<gpointer>
michael@0:         (reinterpret_cast<uintptr_t>
michael@0:          // This cast just provides a warning if T is not a function.
michael@0:          (reinterpret_cast<void (*)()>(aFunction)));
michael@0: }
michael@0: 
michael@0: #endif // nsGtkUtils_h__