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/* -*- 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_SD_SOURCE_UI_INC_SHELLFACTORY_HXX
#define INCLUDED_SD_SOURCE_UI_INC_SHELLFACTORY_HXX
#include <sal/types.h>
namespace vcl { class Window; }
namespace sd {
class FrameView;
typedef sal_Int32 ShellId;
// This shell id is a reserved value and does not specify any valid shell.
static const sal_Int32 snInvalidShellId = -1;
template<class ShellType>
class ShellFactory
{
public:
/** This abstract virtual class needs a destructor so that the
destructors of derived classes are called.
*/
virtual ~ShellFactory (void) {};
/** Create a new instance of a view shell for the given id that will
be stacked onto the given view shell base.
@return
Return the new view shell or NULL when a creation is not
possible.
*/
virtual ShellType* CreateShell (
ShellId nId,
vcl::Window* pParentWindow,
FrameView* pFrameView = NULL) = 0;
/** Tell the factory that a shell is no longer in use. It may destroy
it or put it for future use in a cache.
*/
virtual void ReleaseShell (ShellType* pShell) = 0;
};
} // end of namespace sd
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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