1 | /* |
2 | Copyright 2009 Ingo Klöcker <kloecker@kde.org> |
3 | |
4 | This library is free software; you can redistribute it and/or modify it |
5 | under the terms of the GNU Library General Public License as published by |
6 | the Free Software Foundation; either version 2 of the License, or (at your |
7 | option) any later version. |
8 | |
9 | This library is distributed in the hope that it will be useful, but WITHOUT |
10 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
11 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
12 | License for more details. |
13 | |
14 | You should have received a copy of the GNU Library General Public License |
15 | along with this library; see the file COPYING.LIB. If not, write to the |
16 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
17 | 02110-1301, USA. |
18 | */ |
19 | |
20 | #include "comparisonvisitor.h" |
21 | #include "event.h" |
22 | #include "freebusy.h" |
23 | #include "journal.h" |
24 | #include "todo.h" |
25 | |
26 | using namespace KCal; |
27 | |
28 | class ComparisonVisitor::Private |
29 | { |
30 | public: |
31 | Private() : mReference( 0 ) {} |
32 | |
33 | public: |
34 | const IncidenceBase *mReference; |
35 | }; |
36 | |
37 | ComparisonVisitor::ComparisonVisitor() : d( new Private() ) |
38 | { |
39 | } |
40 | |
41 | ComparisonVisitor::~ComparisonVisitor() |
42 | { |
43 | delete d; |
44 | } |
45 | |
46 | bool ComparisonVisitor::compare( IncidenceBase *incidence, const IncidenceBase *reference ) |
47 | { |
48 | d->mReference = reference; |
49 | |
50 | const bool result = incidence ? incidence->accept( *this ) : reference == 0; |
51 | |
52 | d->mReference = 0; |
53 | |
54 | return result; |
55 | } |
56 | |
57 | bool ComparisonVisitor::visit( Event *event ) |
58 | { |
59 | Q_ASSERT( event != 0 ); |
60 | |
61 | const Event *refEvent = dynamic_cast<const Event*>( d->mReference ); |
62 | if ( refEvent ) { |
63 | return *event == *refEvent; |
64 | } else { |
65 | // refEvent is no Event and thus cannot be equal to event |
66 | return false; |
67 | } |
68 | } |
69 | |
70 | bool ComparisonVisitor::visit( Todo *todo ) |
71 | { |
72 | Q_ASSERT( todo != 0 ); |
73 | |
74 | const Todo *refTodo = dynamic_cast<const Todo*>( d->mReference ); |
75 | if ( refTodo ) { |
76 | return *todo == *refTodo; |
77 | } else { |
78 | // refTodo is no Todo and thus cannot be equal to todo |
79 | return false; |
80 | } |
81 | } |
82 | |
83 | bool ComparisonVisitor::visit( Journal *journal ) |
84 | { |
85 | Q_ASSERT( journal != 0 ); |
86 | |
87 | const Journal *refJournal = dynamic_cast<const Journal*>( d->mReference ); |
88 | if ( refJournal ) { |
89 | return *journal == *refJournal; |
90 | } else { |
91 | // refJournal is no Journal and thus cannot be equal to journal |
92 | return false; |
93 | } |
94 | } |
95 | |
96 | bool ComparisonVisitor::visit( FreeBusy *freebusy ) |
97 | { |
98 | Q_ASSERT( freebusy != 0 ); |
99 | |
100 | const FreeBusy *refFreeBusy = dynamic_cast<const FreeBusy*>( d->mReference ); |
101 | if ( refFreeBusy ) { |
102 | return *freebusy == *refFreeBusy; |
103 | } else { |
104 | // refFreeBusy is no FreeBusy and thus cannot be equal to freebusy |
105 | return false; |
106 | } |
107 | } |
108 | |