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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_SLIDESORTER_CURRENT_SLIDE_MANAGER_HXX
#define SD_SLIDESORTER_CURRENT_SLIDE_MANAGER_HXX
#include "model/SlsSharedPageDescriptor.hxx"
#include <vcl/timer.hxx>
#include <tools/link.hxx>
#include <com/sun/star/drawing/XDrawPage.hpp>
class SdPage;
namespace sd { namespace slidesorter {
class SlideSorter;
} }
namespace sd { namespace slidesorter { namespace controller {
/** Manage the current slide. This includes setting the according flags at
the PageDescriptor objects and setting the current slide at the main
view shell.
Switching pages is triggered only after a little delay. This allows
fast travelling through a larger set of slides without having to wait
for the edit view to update its content after every slide change.
*/
class CurrentSlideManager
{
public:
/** Create a new CurrentSlideManager object that manages the current
slide for the given SlideSorter.
*/
CurrentSlideManager (SlideSorter& rSlideSorter);
~CurrentSlideManager (void);
/** Call this when the current page of the main view shell has been
switched. Use SwitchCurrentSlide() to initiate such a switch.
*/
void NotifyCurrentSlideChange (const sal_Int32 nSlideIndex);
void NotifyCurrentSlideChange (const SdPage* pPage);
/** Call this method to switch the current page of the main view shell
to the given slide. Use CurrentSlideHasChanged() when the current
slide change has been initiated by someone else.
@param nSlideIndex
Zero based index in the range [0,number-of-slides).
@param bUpdateSelection
When <TRUE/> then the page selection is cleared and only the new
current slide is selected.
*/
void SwitchCurrentSlide (
const sal_Int32 nSlideIndex,
const bool bUpdateSelection = false);
void SwitchCurrentSlide (
const model::SharedPageDescriptor& rpSlide,
const bool bUpdateSelection = false);
/** Return the page descriptor for the current slide. Note, that when
there is no current slide then the returned pointer is empty.
*/
model::SharedPageDescriptor GetCurrentSlide (void);
/** Release all references to model data.
*/
void PrepareModelChange (void);
/** Modify inner state in reaction to a change of the SlideSorterModel.
*/
void HandleModelChange (void);
private:
SlideSorter& mrSlideSorter;
sal_Int32 mnCurrentSlideIndex;
model::SharedPageDescriptor mpCurrentSlide;
/** Timer to control the delay after which to ask
XController/ViewShellBase to switch to another slide.
*/
Timer maSwitchPageDelayTimer;
bool IsCurrentSlideIsValid (void);
void SetCurrentSlideAtViewShellBase (const model::SharedPageDescriptor& rpSlide);
void SetCurrentSlideAtTabControl (const model::SharedPageDescriptor& rpSlide);
void SetCurrentSlideAtXController (const model::SharedPageDescriptor& rpSlide);
/** When switching from one slide to a new current slide then this
method releases all ties to the old slide.
*/
void ReleaseCurrentSlide (void);
/** When switching from one slide to a new current slide then this
method connects to the new current slide.
*/
void AcquireCurrentSlide (const sal_Int32 nSlideIndex);
DECL_LINK(SwitchPageCallback,void*);
};
} } } // end of namespace ::sd::slidesorter::controller
#endif
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