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/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the 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;
sal_uLong mnUserEventId;
sal_Bool mbUpdateFlag;
DECL_LINK(Callback, void*);
};
} } // end of namespace ::sd::presenter
#endif
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