79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*************************************************************************
|
|
*
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* Copyright 2000, 2010 Oracle and/or its affiliates.
|
|
*
|
|
* OpenOffice.org - a multi-platform office productivity suite
|
|
*
|
|
* This file is part of OpenOffice.org.
|
|
*
|
|
* OpenOffice.org is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License version 3
|
|
* only, as published by the Free Software Foundation.
|
|
*
|
|
* OpenOffice.org is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License version 3 for more details
|
|
* (a copy is included in the LICENSE file that accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* version 3 along with OpenOffice.org. If not, see
|
|
* <http://www.openoffice.org/license.html>
|
|
* for a copy of the LGPLv3 License.
|
|
*
|
|
************************************************************************/
|
|
|
|
#ifndef INCLUDED_SLIDESHOW_VIEWUPDATE_HXX
|
|
#define INCLUDED_SLIDESHOW_VIEWUPDATE_HXX
|
|
|
|
#include "disposable.hxx"
|
|
#include "view.hxx"
|
|
#include <boost/shared_ptr.hpp>
|
|
|
|
/* Definition of ViewUpdate interface */
|
|
|
|
namespace slideshow
|
|
{
|
|
namespace internal
|
|
{
|
|
/** Interface for something that can perform view updates.
|
|
|
|
Use this interface for objects that perform view updates
|
|
from time to time, e.g. slide content. Availability of
|
|
updates can be queried, and subsequently performed.
|
|
*/
|
|
class ViewUpdate : public Disposable
|
|
{
|
|
public:
|
|
/** Perform the update action on all views
|
|
|
|
@return true, if the update was performed
|
|
successfully, false otherwise.
|
|
*/
|
|
virtual bool update() = 0;
|
|
|
|
/** Perform the update action on given view only
|
|
|
|
@return true, if the update was performed
|
|
successfully, false otherwise.
|
|
*/
|
|
virtual bool update( ViewSharedPtr const& rView ) = 0;
|
|
|
|
/** Query whether updates are pending
|
|
|
|
@return true, if updates are pending. Calling update()
|
|
subsequently will perform the pending update then.
|
|
*/
|
|
virtual bool needsUpdate() const = 0;
|
|
};
|
|
|
|
typedef ::boost::shared_ptr< ViewUpdate > ViewUpdateSharedPtr;
|
|
}
|
|
}
|
|
|
|
#endif /* INCLUDED_SLIDESHOW_VIEWUPDATE_HXX */
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|