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Diffstat (limited to 'sd/source/ui/slidesorter/inc/controller/SlsCurrentSlideManager.hxx')
-rw-r--r-- | sd/source/ui/slidesorter/inc/controller/SlsCurrentSlideManager.hxx | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/inc/controller/SlsCurrentSlideManager.hxx b/sd/source/ui/slidesorter/inc/controller/SlsCurrentSlideManager.hxx new file mode 100644 index 000000000000..b0f3a75b540c --- /dev/null +++ b/sd/source/ui/slidesorter/inc/controller/SlsCurrentSlideManager.hxx @@ -0,0 +1,105 @@ +/************************************************************************* + * + * 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 <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. +*/ +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 CurrentSlideHasChanged (const sal_Int32 nSlideIndex); + + /** 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. + */ + void SwitchCurrentSlide (const sal_Int32 nSlideIndex); + void SwitchCurrentSlide (const model::SharedPageDescriptor& rpSlide); + + /** 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; + + bool IsCurrentSlideIsValid (void); + void SetCurrentSlideAtViewShellBase (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); +}; + + +} } } // end of namespace ::sd::slidesorter::controller + +#endif |