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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