/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #ifndef INCLUDED_SLIDESHOW_SOURCE_INC_VIEWEVENTHANDLER_HXX #define INCLUDED_SLIDESHOW_SOURCE_INC_VIEWEVENTHANDLER_HXX #include #include "unoview.hxx" #include "disposable.hxx" /* Definition of ViewEventHandler interface */ namespace slideshow::internal { /** Interface for handling view events. Classes implementing this interface can be added to an EventMultiplexer object, and are called from there to handle view events. */ class ViewEventHandler : public virtual SharedPtrAble { public: /** Notify new view. @param rView The newly added view */ virtual void viewAdded( const UnoViewSharedPtr& rView ) = 0; /** Notify removed view. @param rView The removed view */ virtual void viewRemoved( const UnoViewSharedPtr& rView ) = 0; /** Notify changed view. Reasons for a viewChanged notification can be different view size, transformation, or other device properties (color resolution or profile, etc.) @param rView The changed view */ virtual void viewChanged( const UnoViewSharedPtr& rView ) = 0; /** Notify that all views changed. Reasons for a viewChanged notification can be different view size, transformation, or other device properties (color resolution or profile, etc.) Note that this method avoids hidden inefficiencies (O(n^2) behaviour when viewChanged() needs to perform linear searches) */ virtual void viewsChanged() = 0; }; typedef ::std::weak_ptr< ViewEventHandler > ViewEventHandlerWeakPtr; } #endif // INCLUDED_SLIDESHOW_SOURCE_INC_VIEWEVENTHANDLER_HXX /* vim:set shiftwidth=4 softtabstop=4 expandtab: */