1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #include "precompiled_sd.hxx" 29*cdf0e10cSrcweir 30*cdf0e10cSrcweir #include "slideshow.hxx" 31*cdf0e10cSrcweir #include "ViewShellBase.hxx" 32*cdf0e10cSrcweir #include <rtl/ref.hxx> 33*cdf0e10cSrcweir #include <tools/link.hxx> 34*cdf0e10cSrcweir #include <boost/enable_shared_from_this.hpp> 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir namespace sd { 37*cdf0e10cSrcweir 38*cdf0e10cSrcweir /** This class is used when a display is removed or added to restart the 39*cdf0e10cSrcweir slide show. This is necessary at least with DirectX because 40*cdf0e10cSrcweir deactivating a display invalidates DirectX resources. Accessing those 41*cdf0e10cSrcweir leads to a crash. 42*cdf0e10cSrcweir 43*cdf0e10cSrcweir During a restart a possibly installed presenter extension is given the 44*cdf0e10cSrcweir oportunity to show or hide depending on the number of available displays. 45*cdf0e10cSrcweir */ 46*cdf0e10cSrcweir class SlideShowRestarter 47*cdf0e10cSrcweir : public boost::enable_shared_from_this<SlideShowRestarter> 48*cdf0e10cSrcweir { 49*cdf0e10cSrcweir public: 50*cdf0e10cSrcweir /** Create a new SlideShowRestarter object. 51*cdf0e10cSrcweir @param rpSlideShow 52*cdf0e10cSrcweir The slide show is used to determine the current slide, which is 53*cdf0e10cSrcweir restored after the restart, and of course to stop and start the 54*cdf0e10cSrcweir slide show. 55*cdf0e10cSrcweir @param pViewShellBase 56*cdf0e10cSrcweir Used to get access to a slot dispatcher. 57*cdf0e10cSrcweir */ 58*cdf0e10cSrcweir SlideShowRestarter ( 59*cdf0e10cSrcweir const ::rtl::Reference<SlideShow>& rpSlideShow, 60*cdf0e10cSrcweir ViewShellBase* pViewShellBase); 61*cdf0e10cSrcweir virtual ~SlideShowRestarter (void); 62*cdf0e10cSrcweir 63*cdf0e10cSrcweir /** Restarting the slide show is an asynchronous multi step process 64*cdf0e10cSrcweir which is started by calling this method. 65*cdf0e10cSrcweir */ 66*cdf0e10cSrcweir void Restart (void); 67*cdf0e10cSrcweir 68*cdf0e10cSrcweir private: 69*cdf0e10cSrcweir sal_Int32 mnEventId; 70*cdf0e10cSrcweir ::rtl::Reference<SlideShow> mpSlideShow; 71*cdf0e10cSrcweir ViewShellBase* mpViewShellBase; 72*cdf0e10cSrcweir ::boost::shared_ptr<SlideShowRestarter> mpSelf; 73*cdf0e10cSrcweir sal_Int32 mnDisplayCount; 74*cdf0e10cSrcweir SfxDispatcher* mpDispatcher; 75*cdf0e10cSrcweir sal_Int32 mnCurrentSlideNumber; 76*cdf0e10cSrcweir 77*cdf0e10cSrcweir /** The display count is used to determine whether the number of 78*cdf0e10cSrcweir displays has changed and thus whether restarting the slide show is 79*cdf0e10cSrcweir really necessary. 80*cdf0e10cSrcweir */ 81*cdf0e10cSrcweir sal_Int32 GetDisplayCount (void); 82*cdf0e10cSrcweir 83*cdf0e10cSrcweir DECL_LINK(EndPresentation, void*); 84*cdf0e10cSrcweir 85*cdf0e10cSrcweir /** Restart the presentation on the slide last shown before the restart 86*cdf0e10cSrcweir was initiated. 87*cdf0e10cSrcweir */ 88*cdf0e10cSrcweir void StartPresentation (void); 89*cdf0e10cSrcweir }; 90*cdf0e10cSrcweir 91*cdf0e10cSrcweir } // end of namespace sd 92