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KCalCore Library

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compat.cpp
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1 /*
2  This file is part of the kcalcore library.
3 
4  Copyright (c) 2002 Cornelius Schumacher <schumacher@kde.org>
5  Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
6  Copyright (C) 2012 Christian Mollekopf <mollekopf@kolabsys.com>
7 
8  This library is free software; you can redistribute it and/or
9  modify it under the terms of the GNU Library General Public
10  License as published by the Free Software Foundation; either
11  version 2 of the License, or (at your option) any later version.
12 
13  This library is distributed in the hope that it will be useful,
14  but WITHOUT ANY WARRANTY; without even the implied warranty of
15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  Library General Public License for more details.
17 
18  You should have received a copy of the GNU Library General Public License
19  along with this library; see the file COPYING.LIB. If not, write to
20  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21  Boston, MA 02110-1301, USA.
22 */
35 #include "compat.h"
36 #include "incidence.h"
37 
38 #include <KDebug>
39 
40 #include <QtCore/QRegExp>
41 #include <QtCore/QString>
42 #include <QtCore/QDate>
43 
44 using namespace KCalCore;
45 
46 Compat *CompatFactory::createCompat(const QString &productId,
47  const QString &implementationVersion)
48 {
49  Compat *compat = 0;
50 
51  int korg = productId.indexOf("KOrganizer");
52  int outl9 = productId.indexOf("Outlook 9.0");
53 
54  if (korg >= 0) {
55  int versionStart = productId.indexOf(" ", korg);
56  if (versionStart >= 0) {
57  int versionStop = productId.indexOf(QRegExp("[ /]"), versionStart + 1);
58  if (versionStop >= 0) {
59  QString version = productId.mid(versionStart + 1,
60  versionStop - versionStart - 1);
61 
62  int versionNum = version.section('.', 0, 0).toInt() * 10000 +
63  version.section('.', 1, 1).toInt() * 100 +
64  version.section('.', 2, 2).toInt();
65  int releaseStop = productId.indexOf("/", versionStop);
66  QString release;
67  if (releaseStop > versionStop) {
68  release = productId.mid(versionStop+1, releaseStop-versionStop-1);
69  }
70  if (versionNum < 30100) {
71  compat = new CompatPre31;
72  } else if (versionNum < 30200) {
73  compat = new CompatPre32;
74  } else if (versionNum == 30200 && release == "pre") {
75  kDebug() << "Generating compat for KOrganizer 3.2 pre";
76  compat = new Compat32PrereleaseVersions;
77  } else if (versionNum < 30400) {
78  compat = new CompatPre34;
79  } else if (versionNum < 30500) {
80  compat = new CompatPre35;
81  }
82  }
83  }
84  } else if (outl9 >= 0) {
85  kDebug() << "Generating compat for Outlook < 2000 (Outlook 9.0)";
86  compat = new CompatOutlook9;
87  }
88  if (!compat) {
89  compat = new Compat;
90  }
91  // Older implementations lacked the implementation version,
92  // so apply this fix if it is a file from kontact and the version is missing.
93  if (implementationVersion.isEmpty() &&
94  (productId.contains("libkcal") ||
95  productId.contains("KOrganizer") ||
96  productId.contains("KAlarm"))) {
97  compat = new CompatPre410(compat);
98  }
99 
100  return compat;
101 }
102 
103 Compat::Compat()
104 {
105 }
106 
107 Compat::~Compat()
108 {
109 }
110 
111 void Compat::fixEmptySummary(const Incidence::Ptr &incidence)
112 {
113  // some stupid vCal exporters ignore the standard and use Description
114  // instead of Summary for the default field. Correct for this: Copy the
115  // first line of the description to the summary (if summary is just one
116  // line, move it)
117  if (incidence->summary().isEmpty() && !(incidence->description().isEmpty())) {
118  QString oldDescription = incidence->description().trimmed();
119  QString newSummary(oldDescription);
120  newSummary.remove(QRegExp("\n.*"));
121  incidence->setSummary(newSummary);
122  if (oldDescription == newSummary) {
123  incidence->setDescription("");
124  }
125  }
126 }
127 
128 void Compat::fixAlarms(const Incidence::Ptr &incidence)
129 {
130  Q_UNUSED(incidence);
131 }
132 
133 void Compat::fixFloatingEnd(QDate &date)
134 {
135  Q_UNUSED(date);
136 }
137 
138 void Compat::fixRecurrence(const Incidence::Ptr &incidence)
139 {
140  Q_UNUSED(incidence);
141  // Prevent use of compatibility mode during subsequent changes by the application
142  // incidence->recurrence()->setCompatVersion();
143 }
144 
145 int Compat::fixPriority(int priority)
146 {
147  return priority;
148 }
149 
150 bool Compat::useTimeZoneShift()
151 {
152  return true;
153 }
154 
155 void Compat::setCreatedToDtStamp(const Incidence::Ptr &incidence, const KDateTime &dtstamp)
156 {
157  Q_UNUSED(incidence);
158  Q_UNUSED(dtstamp);
159 }
160 
161 struct CompatDecorator::Private {
162  Compat *compat;
163 };
164 
165 CompatDecorator::CompatDecorator(Compat *compat)
166  : d(new CompatDecorator::Private)
167 {
168  d->compat = compat;
169 }
170 
171 CompatDecorator::~CompatDecorator()
172 {
173  delete d->compat;
174  delete d;
175 }
176 
177 void CompatDecorator::fixEmptySummary(const Incidence::Ptr &incidence)
178 {
179  d->compat->fixEmptySummary(incidence);
180 }
181 
182 void CompatDecorator::fixAlarms(const Incidence::Ptr &incidence)
183 {
184  d->compat->fixAlarms(incidence);
185 }
186 
187 void CompatDecorator::fixFloatingEnd(QDate &date)
188 {
189  d->compat->fixFloatingEnd(date);
190 }
191 
192 void CompatDecorator::fixRecurrence(const Incidence::Ptr &incidence)
193 {
194  d->compat->fixRecurrence(incidence);
195 }
196 
197 int CompatDecorator::fixPriority(int priority)
198 {
199  return d->compat->fixPriority(priority);
200 }
201 
202 bool CompatDecorator::useTimeZoneShift()
203 {
204  return d->compat->useTimeZoneShift();
205 }
206 
207 void CompatDecorator::setCreatedToDtStamp(const Incidence::Ptr &incidence,
208  const KDateTime &dtstamp)
209 {
210  d->compat->setCreatedToDtStamp(incidence, dtstamp);
211 }
212 
213 void CompatPre35::fixRecurrence(const Incidence::Ptr &incidence)
214 {
215  Recurrence *recurrence = incidence->recurrence();
216  if (recurrence) {
217  KDateTime start(incidence->dtStart());
218  // kde < 3.5 only had one rrule, so no need to loop over all RRULEs.
219  RecurrenceRule *r = recurrence->defaultRRule();
220  if (r && !r->dateMatchesRules(start)) {
221  recurrence->addExDateTime(start);
222  }
223  }
224 
225  // Call base class method now that everything else is done
226  Compat::fixRecurrence(incidence);
227 }
228 
229 int CompatPre34::fixPriority(int priority)
230 {
231  if (0 < priority && priority < 6) {
232  // adjust 1->1, 2->3, 3->5, 4->7, 5->9
233  return 2 * priority - 1;
234  } else {
235  return priority;
236  }
237 }
238 
239 void CompatPre32::fixRecurrence(const Incidence::Ptr &incidence)
240 {
241  Recurrence *recurrence = incidence->recurrence();
242  if (recurrence->recurs() && recurrence->duration() > 0) {
243  recurrence->setDuration(recurrence->duration() + incidence->recurrence()->exDates().count());
244  }
245  // Call base class method now that everything else is done
246  CompatPre35::fixRecurrence(incidence);
247 }
248 
249 void CompatPre31::fixFloatingEnd(QDate &endDate)
250 {
251  endDate = endDate.addDays(1);
252 }
253 
254 void CompatPre31::fixRecurrence(const Incidence::Ptr &incidence)
255 {
256  CompatPre32::fixRecurrence(incidence);
257 
258  Recurrence *recur = incidence->recurrence();
259  RecurrenceRule *r = 0;
260  if (recur) {
261  r = recur->defaultRRule();
262  }
263  if (recur && r) {
264  int duration = r->duration();
265  if (duration > 0) {
266  // Backwards compatibility for KDE < 3.1.
267  // rDuration was set to the number of time periods to recur,
268  // with week start always on a Monday.
269  // Convert this to the number of occurrences.
270  r->setDuration(-1);
271  QDate end(r->startDt().date());
272  bool doNothing = false;
273  // # of periods:
274  int tmp = (duration - 1) * r->frequency();
275  switch (r->recurrenceType()) {
276  case RecurrenceRule::rWeekly:
277  {
278  end = end.addDays(tmp * 7 + 7 - end.dayOfWeek());
279  break;
280  }
281  case RecurrenceRule::rMonthly:
282  {
283  int month = end.month() - 1 + tmp;
284  end.setYMD(end.year() + month / 12, month % 12 + 1, 31);
285  break;
286  }
287  case RecurrenceRule::rYearly:
288  {
289  end.setYMD(end.year() + tmp, 12, 31);
290  break;
291  }
292  default:
293  doNothing = true;
294  break;
295  }
296  if (!doNothing) {
297  duration = r->durationTo(
298  KDateTime(end, QTime(0, 0, 0), incidence->dtStart().timeSpec()));
299  r->setDuration(duration);
300  }
301  }
302 
303  /* addYearlyNum */
304  // Dates were stored as day numbers, with a fiddle to take account of
305  // leap years. Convert the day number to a month.
306  QList<int> days = r->byYearDays();
307  if (!days.isEmpty()) {
308  QList<int> months = r->byMonths();
309  for (int i = 0; i < months.size(); ++i) {
310  int newmonth =
311  QDate(r->startDt().date().year(), 1, 1).addDays(months.at(i) - 1).month();
312  if (!months.contains(newmonth)) {
313  months.append(newmonth);
314  }
315  }
316 
317  r->setByMonths(months);
318  days.clear();
319  r->setByYearDays(days);
320  }
321  }
322 }
323 
324 void CompatOutlook9::fixAlarms(const Incidence::Ptr &incidence)
325 {
326  if (!incidence) {
327  return;
328  }
329  Alarm::List alarms = incidence->alarms();
330  Alarm::List::Iterator it;
331  for (it = alarms.begin(); it != alarms.end(); ++it) {
332  Alarm::Ptr al = *it;
333  if (al && al->hasStartOffset()) {
334  Duration offsetDuration = al->startOffset();
335  int offs = offsetDuration.asSeconds();
336  if (offs > 0) {
337  offsetDuration = Duration(-offs);
338  }
339  al->setStartOffset(offsetDuration);
340  }
341  }
342 }
343 
344 bool Compat32PrereleaseVersions::useTimeZoneShift()
345 {
346  return false;
347 }
348 
349 CompatPre410::CompatPre410(Compat *decoratedCompat)
350  : CompatDecorator(decoratedCompat)
351 {
352 }
353 
354 void CompatPre410::setCreatedToDtStamp(const Incidence::Ptr &incidence, const KDateTime &dtstamp)
355 {
356  if (dtstamp.isValid()) {
357  incidence->setCreated(dtstamp);
358  }
359 }
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