1 files changed, 187 insertions, 0 deletions
diff --git a/libkdepim/kpimprefs.cpp b/libkdepim/kpimprefs.cpp
new file mode 100644
index 000000000..1de00f921
--- /dev/null
+++ b/libkdepim/kpimprefs.cpp
@@ -0,0 +1,187 @@
+/*
+    This file is part of libkdepim.
+
+    Copyright (c) 2002 Cornelius Schumacher <[email protected]>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+
+#include <time.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include <qstring.h>
+
+#include <kstandarddirs.h>
+#include <kglobal.h>
+#include <kconfig.h>
+#include <klocale.h>
+#include <kdebug.h>
+
+#include "kpimprefs.h"
+
+KPimPrefs::KPimPrefs( const QString &name )
+  : KConfigSkeleton( name )
+{
+}
+
+KPimPrefs::~KPimPrefs()
+{
+}
+
+void KPimPrefs::usrSetDefaults()
+{
+  setCategoryDefaults();
+}
+
+void KPimPrefs::usrReadConfig()
+{
+  kdDebug(5300) << "KPimPrefs::usrReadConfig()" << endl;
+
+  config()->setGroup("General");
+  mCustomCategories = config()->readListEntry( "Custom Categories" );
+  if ( mCustomCategories.isEmpty() ) setCategoryDefaults();
+  mCustomCategories.sort();
+}
+
+const QString KPimPrefs::timezone()
+{
+  QString zone = "";
+
+  // Read TimeZoneId from korganizerrc.
+  KConfig korgcfg( locate( "config", "korganizerrc" ) );
+  korgcfg.setGroup( "Time & Date" );
+  QString tz( korgcfg.readEntry( "TimeZoneId" ) );
+  if ( !tz.isEmpty() ) {
+    zone = tz;
+    kdDebug(5300) << "timezone from korganizerrc is " << zone << endl;
+  }
+
+  // If timezone not found in KOrg, use the system's default timezone.
+  if ( zone.isEmpty() ) {
+    char zonefilebuf[ PATH_MAX ];
+
+    int len = readlink( "/etc/localtime", zonefilebuf, PATH_MAX );
+    if ( len > 0 && len < PATH_MAX ) {
+      zone = QString::fromLocal8Bit( zonefilebuf, len );
+      zone = zone.mid( zone.find( "zoneinfo/" ) + 9 );
+      kdDebug(5300) << "system timezone from /etc/localtime is " << zone
+                    << endl;
+    } else {
+      tzset();
+      zone = tzname[ 0 ];
+      kdDebug(5300) << "system timezone from tzset() is " << zone << endl;
+    }
+  }
+
+  return( zone );
+}
+
+QDateTime KPimPrefs::utcToLocalTime( const QDateTime &_dt,
+                                     const QString &timeZoneId )
+{
+  QDateTime dt(_dt);
+//  kdDebug() << "---   UTC: " << dt.toString() << endl;
+
+  int yearCorrection = 0;
+  // The timezone conversion only works for dates > 1970
+  // For dates < 1970 we adjust the date to be in 1970, 
+  // do the correction there and then re-adjust back.
+  // Actually, we use 1971 to prevent errors around
+  // January 1, 1970
+  int year = dt.date().year();
+  if (year < 1971)
+  {
+    yearCorrection = 1971 - year;
+    dt = dt.addYears(yearCorrection);
+//    kdDebug() << "---   Adjusted UTC: " << dt.toString() << endl;
+  }
+  
+  QCString origTz = getenv("TZ");
+
+  setenv( "TZ", "UTC", 1 );
+  time_t utcTime = dt.toTime_t();
+
+  setenv( "TZ", timeZoneId.local8Bit(), 1 );
+  struct tm *local = localtime( &utcTime );
+
+  if ( origTz.isNull() ) {
+    unsetenv( "TZ" );
+  } else {
+    setenv( "TZ", origTz, 1 );
+  }
+  tzset();
+
+  QDateTime result( QDate( local->tm_year + 1900 - yearCorrection,
+                           local->tm_mon + 1, local->tm_mday ),
+                    QTime( local->tm_hour, local->tm_min, local->tm_sec ) );
+
+//  kdDebug() << "--- LOCAL: " << result.toString() << endl;
+  return result;
+}
+
+QDateTime KPimPrefs::localTimeToUtc( const QDateTime &_dt,
+                                     const QString &timeZoneId )
+{
+  QDateTime dt(_dt);
+//  kdDebug() << "--- LOCAL: " << dt.toString() << endl;
+
+  int yearCorrection = 0;
+  // The timezone conversion only works for dates > 1970
+  // For dates < 1970 we adjust the date to be in 1970, 
+  // do the correction there and then re-adjust back.
+  // Actually, we use 1971 to prevent errors around
+  // January 1, 1970
+  
+  int year = dt.date().year();
+  if (year < 1971)
+  {
+    yearCorrection = 1971 - year;
+    dt = dt.addYears(yearCorrection);
+//    kdDebug() << "---   Adjusted LOCAL: " << dt.toString() << endl;
+  }
+
+  QCString origTz = getenv("TZ");
+
+  setenv( "TZ", timeZoneId.local8Bit(), 1 );
+  time_t localTime = dt.toTime_t();
+
+  setenv( "TZ", "UTC", 1 );
+  struct tm *utc = gmtime( &localTime );
+
+  if ( origTz.isNull() ) {
+    unsetenv( "TZ" );
+  } else {
+    setenv( "TZ", origTz, 1 );
+  }
+  tzset();
+
+  QDateTime result( QDate( utc->tm_year + 1900 - yearCorrection,
+                           utc->tm_mon + 1, utc->tm_mday ),
+                    QTime( utc->tm_hour, utc->tm_min, utc->tm_sec ) );
+
+//  kdDebug() << "---   UTC: " << result.toString() << endl;
+
+  return result;
+}
+
+void KPimPrefs::usrWriteConfig()
+{
+  config()->setGroup( "General" );
+  config()->writeEntry( "Custom Categories", mCustomCategories );
+}