1/*
2 This file is part of the kcal library.
3
4 Copyright (c) 2002 Cornelius Schumacher <schumacher@kde.org>
5 Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
16
17 You should have received a copy of the GNU Library General Public License
18 along with this library; see the file COPYING.LIB. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA.
21*/
22/**
23 @file
24 This file is part of the API for handling calendar data and defines
25 classes for managing compatibility between different calendar formats.
26
27 @brief
28 Classes that provide compatibility to older or "broken" calendar formats.
29
30 @author Cornelius Schumacher \<schumacher@kde.org\>
31 @author Reinhold Kainhofer \<reinhold@kainhofer.com\>
32*/
33
34#include "compat.h"
35#include "incidence.h"
36
37#include <kdatetime.h>
38#include <kdebug.h>
39
40#include <QtCore/QRegExp>
41#include <QtCore/QList>
42
43using namespace KCal;
44
45Compat *CompatFactory::createCompat( const QString &productId )
46{
47 Compat *compat = 0;
48
49 int korg = productId.indexOf( "KOrganizer" );
50 int outl9 = productId.indexOf( "Outlook 9.0" );
51
52 // TODO: Use the version of LibKCal to determine the compat class...
53 if ( korg >= 0 ) {
54 int versionStart = productId.indexOf( " ", korg );
55 if ( versionStart >= 0 ) {
56 int versionStop = productId.indexOf( QRegExp( "[ /]" ), versionStart + 1 );
57 if ( versionStop >= 0 ) {
58 QString version = productId.mid( versionStart + 1,
59 versionStop - versionStart - 1 );
60
61 int versionNum = version.section( '.', 0, 0 ).toInt() * 10000 +
62 version.section( '.', 1, 1 ).toInt() * 100 +
63 version.section( '.', 2, 2 ).toInt();
64 int releaseStop = productId.indexOf( "/", versionStop );
65 QString release;
66 if ( releaseStop > versionStop ) {
67 release = productId.mid( versionStop+1, releaseStop-versionStop-1 );
68 }
69 if ( versionNum < 30100 ) {
70 compat = new CompatPre31;
71 } else if ( versionNum < 30200 ) {
72 compat = new CompatPre32;
73 } else if ( versionNum == 30200 && release == "pre" ) {
74 kDebug() << "Generating compat for KOrganizer 3.2 pre";
75 compat = new Compat32PrereleaseVersions;
76 } else if ( versionNum < 30400 ) {
77 compat = new CompatPre34;
78 } else if ( versionNum < 30500 ) {
79 compat = new CompatPre35;
80 }
81 }
82 }
83 } else if ( outl9 >= 0 ) {
84 kDebug() << "Generating compat for Outlook < 2000 (Outlook 9.0)";
85 compat = new CompatOutlook9;
86 }
87
88 if ( !compat ) {
89 compat = new Compat;
90 }
91
92 return compat;
93}
94
95void Compat::fixEmptySummary( Incidence *incidence )
96{
97 // some stupid vCal exporters ignore the standard and use Description
98 // instead of Summary for the default field. Correct for this: Copy the
99 // first line of the description to the summary (if summary is just one
100 // line, move it)
101 if ( incidence->summary().isEmpty() && !( incidence->description().isEmpty() ) ) {
102 QString oldDescription = incidence->description().trimmed();
103 QString newSummary( oldDescription );
104 newSummary.remove( QRegExp( "\n.*" ) );
105 incidence->setSummary( newSummary );
106 if ( oldDescription == newSummary ) {
107 incidence->setDescription( "" );
108 }
109 }
110}
111
112void Compat::fixFloatingEnd( QDate &date )
113{
114 Q_UNUSED( date );
115}
116
117void Compat::fixRecurrence( Incidence *incidence )
118{
119 Q_UNUSED( incidence );
120 // Prevent use of compatibility mode during subsequent changes by the application
121// incidence->recurrence()->setCompatVersion();
122}
123
124void CompatPre35::fixRecurrence( Incidence *incidence )
125{
126 Recurrence *recurrence = incidence->recurrence();
127 if ( recurrence ) {
128 KDateTime start( incidence->dtStart() );
129 // kde < 3.5 only had one rrule, so no need to loop over all RRULEs.
130 RecurrenceRule *r = recurrence->defaultRRule();
131 if ( r && !r->dateMatchesRules( start ) ) {
132 recurrence->addExDateTime( start );
133 }
134 }
135
136 // Call base class method now that everything else is done
137 Compat::fixRecurrence( incidence );
138}
139
140int CompatPre34::fixPriority( int priority )
141{
142 if ( 0 < priority && priority < 6 ) {
143 // adjust 1->1, 2->3, 3->5, 4->7, 5->9
144 return 2 * priority - 1;
145 } else {
146 return priority;
147 }
148}
149
150void CompatPre32::fixRecurrence( Incidence *incidence )
151{
152 Recurrence *recurrence = incidence->recurrence();
153 if ( recurrence->recurs() && recurrence->duration() > 0 ) {
154 recurrence->setDuration( recurrence->duration() + incidence->recurrence()->exDates().count() );
155 }
156 // Call base class method now that everything else is done
157 CompatPre35::fixRecurrence( incidence );
158}
159
160void CompatPre31::fixFloatingEnd( QDate &endDate )
161{
162 endDate = endDate.addDays( 1 );
163}
164
165void CompatPre31::fixRecurrence( Incidence *incidence )
166{
167 CompatPre32::fixRecurrence( incidence );
168
169 Recurrence *recur = incidence->recurrence();
170 RecurrenceRule *r = 0;
171 if ( recur ) {
172 r = recur->defaultRRule();
173 }
174 if ( recur && r ) {
175 int duration = r->duration();
176 if ( duration > 0 ) {
177 // Backwards compatibility for KDE < 3.1.
178 // rDuration was set to the number of time periods to recur,
179 // with week start always on a Monday.
180 // Convert this to the number of occurrences.
181 r->setDuration( -1 );
182 QDate end( r->startDt().date() );
183 bool doNothing = false;
184 // # of periods:
185 int tmp = ( duration - 1 ) * r->frequency();
186 switch ( r->recurrenceType() ) {
187 case RecurrenceRule::rWeekly:
188 {
189 end = end.addDays( tmp * 7 + 7 - end.dayOfWeek() );
190 break;
191 }
192 case RecurrenceRule::rMonthly:
193 {
194 int month = end.month() - 1 + tmp;
195 end.setYMD( end.year() + month / 12, month % 12 + 1, 31 );
196 break;
197 }
198 case RecurrenceRule::rYearly:
199 {
200 end.setYMD( end.year() + tmp, 12, 31 );
201 break;
202 }
203 default:
204 doNothing = true;
205 break;
206 }
207 if ( !doNothing ) {
208 duration = r->durationTo(
209 KDateTime( end, QTime( 0, 0, 0 ), incidence->dtStart().timeSpec() ) );
210 r->setDuration( duration );
211 }
212 }
213
214 /* addYearlyNum */
215 // Dates were stored as day numbers, with a fiddle to take account of
216 // leap years. Convert the day number to a month.
217 QList<int> days = r->byYearDays();
218 if ( !days.isEmpty() ) {
219 QList<int> months = r->byMonths();
220 for ( int i = 0; i < months.size(); ++i ) {
221 int newmonth =
222 QDate( r->startDt().date().year(), 1, 1 ).addDays( months.at( i ) - 1 ).month();
223 if ( !months.contains( newmonth ) ) {
224 months.append( newmonth );
225 }
226 }
227
228 r->setByMonths( months );
229 days.clear();
230 r->setByYearDays( days );
231 }
232 }
233}
234
235void CompatOutlook9::fixAlarms( Incidence *incidence )
236{
237 if ( !incidence ) {
238 return;
239 }
240 Alarm::List alarms = incidence->alarms();
241 Alarm::List::Iterator it;
242 for ( it = alarms.begin(); it != alarms.end(); ++it ) {
243 Alarm *al = *it;
244 if ( al && al->hasStartOffset() ) {
245 Duration offsetDuration = al->startOffset();
246 int offs = offsetDuration.asSeconds();
247 if ( offs > 0 ) {
248 offsetDuration = Duration( -offs );
249 }
250 al->setStartOffset( offsetDuration );
251 }
252 }
253}
254