added MacFullScreen class to enable Mac OS X Lion full-screen feature

Done with Max Desyatov<max.desyatov@gmail.com>

Change-Id: I2c3ff188b5f05dc3b8ec106fec0db3766b43a205
Reviewed-by: Erik Verbruggen <erik.verbruggen@nokia.com>

src/plugins/coreplugin/macfullscreen.h

@@ -0,0 +1,51 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+**
+** GNU Lesser General Public License Usage
+**
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#ifndef MACFULLSCREEN_H
+#define MACFULLSCREEN_H
+
+#include "mainwindow.h"
+
+namespace Core {
+namespace Internal {
+namespace MacFullScreen {
+
+bool supportsFullScreen();
+// adds fullscreen button to window for lion
+void addFullScreen(Core::Internal::MainWindow *window);
+void toggleFullScreen(Core::Internal::MainWindow *window);
+
+} // MacFullScreen
+} // Internal
+} // Core
+
+#endif // MACFULLSCREEN_H