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87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/*
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This file is part of the kcalcore library.
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Copyright (c) 2001-2003 Cornelius Schumacher <schumacher@kde.org>
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Copyright (c) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
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Copyright (c) 2005 Rafal Rzepecki <divide@users.sourceforge.net>
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Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
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Contact: Alvaro Manera <alvaro.manera@nokia.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef KCALCORE_VISITOR_P_H
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#define KCALCORE_VISITOR_P_H
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#include "event.h"
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#include "journal.h"
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#include "todo.h"
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#include "freebusy.h"
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namespace KCalCore {
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/**
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This class provides the interface for a visitor of calendar components.
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It serves as base class for concrete visitors, which implement certain
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actions on calendar components. It allows to add functions, which operate
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on the concrete types of calendar components, without changing the
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calendar component classes.
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*/
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class KCALCORE_EXPORT Visitor //krazy:exclude=dpointer
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{
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public:
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/** Destruct Incidence::Visitor */
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virtual ~Visitor();
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/**
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Reimplement this function in your concrete subclass of
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IncidenceBase::Visitor to perform actions on an Event object.
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@param event is a pointer to a valid Event object.
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*/
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virtual bool visit(Event::Ptr event);
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/**
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Reimplement this function in your concrete subclass of
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IncidenceBase::Visitor to perform actions on a Todo object.
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@param todo is a pointer to a valid Todo object.
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*/
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virtual bool visit(Todo::Ptr todo);
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/**
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Reimplement this function in your concrete subclass of
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IncidenceBase::Visitor to perform actions on an Journal object.
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@param journal is a pointer to a valid Journal object.
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*/
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virtual bool visit(Journal::Ptr journal);
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/**
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Reimplement this function in your concrete subclass of
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IncidenceBase::Visitor to perform actions on a FreeBusy object.
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@param freebusy is a pointer to a valid FreeBusy object.
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*/
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virtual bool visit(FreeBusy::Ptr freebusy);
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protected:
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/**
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Constructor is protected to prevent direct creation of visitor
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base class.
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*/
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Visitor();
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};
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} // end namespace
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#endif
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