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/*************************************************************************
*
* 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 SD_PRESENTER_CANVAS_UPDATE_REQUESTER_HEADER
#define SD_PRESENTER_CANVAS_UPDATE_REQUESTER_HEADER
#include "precompiled_sd.hxx"
#include <com/sun/star/rendering/XSpriteCanvas.hpp>
#include <boost/noncopyable.hpp>
#include <boost/shared_ptr.hpp>
#include <sal/types.h>
#include <tools/solar.h>
#include <tools/link.hxx>
#include <vector>
namespace css = ::com::sun::star;
namespace sd { namespace presenter {
/** Each UpdateRequester handles update requests (calls to
XCanvas::updateScreen()) for one shared canvas (a canvas that has one or
more PresenterCanvas wrappers). Multiple calls are collected and lead
to a single call to updateScreen.
*/
class CanvasUpdateRequester : private ::boost::noncopyable
{
public:
/** Return the Canvas UpdateRequester object for the given shared
canvas. A new object is created when it does not already exist.
*/
static ::boost::shared_ptr<CanvasUpdateRequester> Instance (
const css::uno::Reference<css::rendering::XSpriteCanvas>& rxCanvas);
void RequestUpdate (const sal_Bool bUpdateAll);
private:
CanvasUpdateRequester (const css::uno::Reference<css::rendering::XSpriteCanvas>& rxCanvas);
~CanvasUpdateRequester (void);
class Deleter; friend class Deleter;
typedef ::std::vector<
::std::pair<
css::uno::Reference<css::rendering::XSpriteCanvas>,
::boost::shared_ptr<CanvasUpdateRequester> > > RequesterMap;
static RequesterMap maRequesterMap;
css::uno::Reference<css::rendering::XSpriteCanvas> mxCanvas;
ULONG mnUserEventId;
sal_Bool mbUpdateFlag;
DECL_LINK(Callback, void*);
};
} } // end of namespace ::sd::presenter
#endif
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