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Diffstat (limited to 'slideshow/source/inc/disposable.hxx')
-rw-r--r-- | slideshow/source/inc/disposable.hxx | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/slideshow/source/inc/disposable.hxx b/slideshow/source/inc/disposable.hxx new file mode 100644 index 000000000..c3be8bb40 --- /dev/null +++ b/slideshow/source/inc/disposable.hxx @@ -0,0 +1,68 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#ifndef INCLUDED_SLIDESHOW_SOURCE_INC_DISPOSABLE_HXX +#define INCLUDED_SLIDESHOW_SOURCE_INC_DISPOSABLE_HXX + +#include <memory> + + +/* Definition of Disposable interface */ + +namespace slideshow +{ + namespace internal + { + /** + * Base class for being a shared pointer, since quite a few of the downstream classes + * want to be stored using std::shared_ptr. + */ + class SharedPtrAble : public std::enable_shared_from_this<SharedPtrAble> + { + public: + virtual ~SharedPtrAble() {} + }; + + /** Disposable interface + + With ref-counted objects, deleting object networks + containing cycles requires a dispose() call, to enforce + every object to call dispose on and release local + references. + */ + class Disposable + { + public: + virtual ~Disposable() {} + + /** Dispose all object references. + + An implementor of this method must first call + dispose() on any of its external references, and + release them after that. + */ + virtual void dispose() = 0; + }; + + } +} + +#endif // INCLUDED_SLIDESHOW_SOURCE_INC_DISPOSABLE_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |