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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_VISIBLE_AREA_MANAGER_HXX
#define SD_SLIDESORTER_VISIBLE_AREA_MANAGER_HXX
#include "controller/SlsAnimator.hxx"
#include "model/SlsSharedPageDescriptor.hxx"
#include <boost/noncopyable.hpp>
#include <boost/optional.hpp>
namespace sd { namespace slidesorter { namespace controller {
/** Manage requests for scrolling page objects into view.
*/
class VisibleAreaManager
: public ::boost::noncopyable
{
public:
VisibleAreaManager (SlideSorter& rSlideSorter);
~VisibleAreaManager (void);
void ActivateCurrentSlideTracking (void);
void DeactivateCurrentSlideTracking (void);
/** Request the current slide to be moved into the visible area.
This request is only obeyed when the current slide tracking is
active.
@see ActivateCurrentSlideTracking() and DeactivateCurrentSlideTracking()
*/
void RequestCurrentSlideVisible (void);
/** Request to make the specified page object visible.
*/
void RequestVisible (
const model::SharedPageDescriptor& rpDescriptor,
const bool bForce = false);
/** Temporarily disable the update of the visible area.
*/
class TemporaryDisabler
{
public:
TemporaryDisabler (SlideSorter& rSlideSorter);
~TemporaryDisabler (void);
private:
VisibleAreaManager& mrVisibleAreaManager;
};
private:
SlideSorter& mrSlideSorter;
/** List of rectangle that someone wants to be moved into the visible
area.
Cleared on every call to ForgetVisibleRequests() and MakeVisible().
*/
::std::vector<Rectangle> maVisibleRequests;
/** Animation id for a scroll animation that sets the top
and left of the visible area to maRequestedVisibleTopLeft.
*/
Animator::AnimationId mnScrollAnimationId;
Point maRequestedVisibleTopLeft;
Animator::AnimationMode meRequestedAnimationMode;
bool mbIsCurrentSlideTrackingActive;
int mnDisableCount;
void MakeVisible (void);
::boost::optional<Point> GetRequestedTopLeft (void) const;
};
} } } // end of namespace ::sd::slidesorter::view
#endif
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