KCal Library
comparisonvisitor.cpp
00001 /* 00002 Copyright 2009 Ingo Klöcker <kloecker@kde.org> 00003 00004 This library is free software; you can redistribute it and/or modify it 00005 under the terms of the GNU Library General Public License as published by 00006 the Free Software Foundation; either version 2 of the License, or (at your 00007 option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, but WITHOUT 00010 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00011 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 00012 License for more details. 00013 00014 You should have received a copy of the GNU Library General Public License 00015 along with this library; see the file COPYING.LIB. If not, write to the 00016 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 00017 02110-1301, USA. 00018 */ 00019 00020 #include "comparisonvisitor.h" 00021 #include "event.h" 00022 #include "freebusy.h" 00023 #include "journal.h" 00024 #include "todo.h" 00025 00026 using namespace KCal; 00027 00028 class ComparisonVisitor::Private 00029 { 00030 public: 00031 Private() : mReference( 0 ) {} 00032 00033 public: 00034 const IncidenceBase *mReference; 00035 }; 00036 00037 ComparisonVisitor::ComparisonVisitor() : d( new Private() ) 00038 { 00039 } 00040 00041 ComparisonVisitor::~ComparisonVisitor() 00042 { 00043 delete d; 00044 } 00045 00046 bool ComparisonVisitor::compare( IncidenceBase *incidence, const IncidenceBase *reference ) 00047 { 00048 d->mReference = reference; 00049 00050 const bool result = incidence ? incidence->accept( *this ) : reference == 0; 00051 00052 d->mReference = 0; 00053 00054 return result; 00055 } 00056 00057 bool ComparisonVisitor::visit( Event *event ) 00058 { 00059 Q_ASSERT( event != 0 ); 00060 00061 const Event *refEvent = dynamic_cast<const Event*>( d->mReference ); 00062 if ( refEvent ) { 00063 return *event == *refEvent; 00064 } else { 00065 // refEvent is no Event and thus cannot be equal to event 00066 return false; 00067 } 00068 } 00069 00070 bool ComparisonVisitor::visit( Todo *todo ) 00071 { 00072 Q_ASSERT( todo != 0 ); 00073 00074 const Todo *refTodo = dynamic_cast<const Todo*>( d->mReference ); 00075 if ( refTodo ) { 00076 return *todo == *refTodo; 00077 } else { 00078 // refTodo is no Todo and thus cannot be equal to todo 00079 return false; 00080 } 00081 } 00082 00083 bool ComparisonVisitor::visit( Journal *journal ) 00084 { 00085 Q_ASSERT( journal != 0 ); 00086 00087 const Journal *refJournal = dynamic_cast<const Journal*>( d->mReference ); 00088 if ( refJournal ) { 00089 return *journal == *refJournal; 00090 } else { 00091 // refJournal is no Journal and thus cannot be equal to journal 00092 return false; 00093 } 00094 } 00095 00096 bool ComparisonVisitor::visit( FreeBusy *freebusy ) 00097 { 00098 Q_ASSERT( freebusy != 0 ); 00099 00100 const FreeBusy *refFreeBusy = dynamic_cast<const FreeBusy*>( d->mReference ); 00101 if ( refFreeBusy ) { 00102 return *freebusy == *refFreeBusy; 00103 } else { 00104 // refFreeBusy is no FreeBusy and thus cannot be equal to freebusy 00105 return false; 00106 } 00107 }
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Documentation copyright © 1996-2012 The KDE developers.
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Documentation copyright © 1996-2012 The KDE developers.
Generated on Tue May 8 2012 00:03:20 by doxygen 1.8.0 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.