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 #ifndef INCLUDED_SLIDESHOW_VIEWEVENTHANDLER_HXX 29*cdf0e10cSrcweir #define INCLUDED_SLIDESHOW_VIEWEVENTHANDLER_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include <boost/shared_ptr.hpp> 32*cdf0e10cSrcweir #include <boost/weak_ptr.hpp> 33*cdf0e10cSrcweir 34*cdf0e10cSrcweir #include "unoview.hxx" 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir /* Definition of ViewEventHandler interface */ 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir namespace slideshow 40*cdf0e10cSrcweir { 41*cdf0e10cSrcweir namespace internal 42*cdf0e10cSrcweir { 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir /** Interface for handling view events. 45*cdf0e10cSrcweir 46*cdf0e10cSrcweir Classes implementing this interface can be added to an 47*cdf0e10cSrcweir EventMultiplexer object, and are called from there to 48*cdf0e10cSrcweir handle view events. 49*cdf0e10cSrcweir */ 50*cdf0e10cSrcweir class ViewEventHandler 51*cdf0e10cSrcweir { 52*cdf0e10cSrcweir public: 53*cdf0e10cSrcweir virtual ~ViewEventHandler() {} 54*cdf0e10cSrcweir 55*cdf0e10cSrcweir /** Notify new view. 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir @param rView 58*cdf0e10cSrcweir The newly added view 59*cdf0e10cSrcweir */ 60*cdf0e10cSrcweir virtual void viewAdded( const UnoViewSharedPtr& rView ) = 0; 61*cdf0e10cSrcweir 62*cdf0e10cSrcweir /** Notify removed view. 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir @param rView 65*cdf0e10cSrcweir The removed view 66*cdf0e10cSrcweir */ 67*cdf0e10cSrcweir virtual void viewRemoved( const UnoViewSharedPtr& rView ) = 0; 68*cdf0e10cSrcweir 69*cdf0e10cSrcweir /** Notify changed view. 70*cdf0e10cSrcweir 71*cdf0e10cSrcweir Reasons for a viewChanged notification can be 72*cdf0e10cSrcweir different view size, transformation, or other device 73*cdf0e10cSrcweir properties (color resolution or profile, etc.) 74*cdf0e10cSrcweir 75*cdf0e10cSrcweir @param rView 76*cdf0e10cSrcweir The changed view 77*cdf0e10cSrcweir */ 78*cdf0e10cSrcweir virtual void viewChanged( const UnoViewSharedPtr& rView ) = 0; 79*cdf0e10cSrcweir 80*cdf0e10cSrcweir /** Notify that all views changed. 81*cdf0e10cSrcweir 82*cdf0e10cSrcweir Reasons for a viewChanged notification can be 83*cdf0e10cSrcweir different view size, transformation, or other device 84*cdf0e10cSrcweir properties (color resolution or profile, etc.) 85*cdf0e10cSrcweir 86*cdf0e10cSrcweir Note that this method avoids hidden inefficiencies 87*cdf0e10cSrcweir (O(n^2) behaviour when viewChanged() needs to perform 88*cdf0e10cSrcweir linear searches) 89*cdf0e10cSrcweir */ 90*cdf0e10cSrcweir virtual void viewsChanged() = 0; 91*cdf0e10cSrcweir }; 92*cdf0e10cSrcweir 93*cdf0e10cSrcweir typedef ::boost::shared_ptr< ViewEventHandler > ViewEventHandlerSharedPtr; 94*cdf0e10cSrcweir typedef ::boost::weak_ptr< ViewEventHandler > ViewEventHandlerWeakPtr; 95*cdf0e10cSrcweir 96*cdf0e10cSrcweir } 97*cdf0e10cSrcweir } 98*cdf0e10cSrcweir 99*cdf0e10cSrcweir #endif /* INCLUDED_SLIDESHOW_VIEWEVENTHANDLER_HXX */ 100