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<h2><a name="content"></a>konsolekalendar</h2>
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<h1>konsolekalendarepoch.cpp</h1><a href="konsolekalendarepoch_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*******************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> * konsolekalendarepoch.cpp *</span>
<a name="l00003"></a>00003 <span class="comment"> * *</span>
<a name="l00004"></a>00004 <span class="comment"> * KonsoleKalendar is a command line interface to KDE calendars *</span>
<a name="l00005"></a>00005 <span class="comment"> * Copyright (C) 2002-2004 Tuukka Pasanen <illuusio@mailcity.com> *</span>
<a name="l00006"></a>00006 <span class="comment"> * Copyright (C) 2003-2005 Allen Winter <winter@kde.org> *</span>
<a name="l00007"></a>00007 <span class="comment"> * *</span>
<a name="l00008"></a>00008 <span class="comment"> * This program is free software; you can redistribute it and/or modify *</span>
<a name="l00009"></a>00009 <span class="comment"> * it under the terms of the GNU General Public License as published by *</span>
<a name="l00010"></a>00010 <span class="comment"> * the Free Software Foundation; either version 2 of the License, or *</span>
<a name="l00011"></a>00011 <span class="comment"> * (at your option) any later version. *</span>
<a name="l00012"></a>00012 <span class="comment"> * *</span>
<a name="l00013"></a>00013 <span class="comment"> * This program is distributed in the hope that it will be useful, *</span>
<a name="l00014"></a>00014 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of *</span>
<a name="l00015"></a>00015 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *</span>
<a name="l00016"></a>00016 <span class="comment"> * GNU General Public License for more details. *</span>
<a name="l00017"></a>00017 <span class="comment"> * *</span>
<a name="l00018"></a>00018 <span class="comment"> * You should have received a copy of the GNU General Public License *</span>
<a name="l00019"></a>00019 <span class="comment"> * along with this program; if not, write to the Free Software *</span>
<a name="l00020"></a>00020 <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *</span>
<a name="l00021"></a>00021 <span class="comment"> * *</span>
<a name="l00022"></a>00022 <span class="comment"> * As a special exception, permission is given to link this program *</span>
<a name="l00023"></a>00023 <span class="comment"> * with any edition of Qt, and distribute the resulting executable, *</span>
<a name="l00024"></a>00024 <span class="comment"> * without including the source code for Qt in the source distribution. *</span>
<a name="l00025"></a>00025 <span class="comment"> * *</span>
<a name="l00026"></a>00026 <span class="comment"> ******************************************************************************/</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <iostream></span>
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="preprocessor">#include <qdatetime.h></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include "<a class="code" href="konsolekalendarepoch_8h.html" title="Provides the KonsoleKalendarEpoch class definition.">konsolekalendarepoch.h</a>"</span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">using namespace </span>KCal;
<a name="l00040"></a>00040 <span class="keyword">using namespace </span>std;
<a name="l00041"></a>00041
<a name="l00042"></a><a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#0ad38f9d2ddad06ab4a06717aa522f37">00042</a> KonsoleKalendarEpoch::KonsoleKalendarEpoch()
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045
<a name="l00046"></a><a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#8d6acf87e04728481dd437605618a632">00046</a> <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#8d6acf87e04728481dd437605618a632" title="Destructor.">KonsoleKalendarEpoch::~KonsoleKalendarEpoch</a>()
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="comment">// By "epoch" we mean the number of seconds since 00:00:00 UTC on January 1 1970</span>
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="comment">// Function to convert an epoch value into a QDateTime</span>
<a name="l00053"></a><a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e3d57bbec2bc5ae093d81b6c9f1be60c">00053</a> QDateTime <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e3d57bbec2bc5ae093d81b6c9f1be60c" title="Converts epoch time to QDateTime format.">KonsoleKalendarEpoch::epoch2QDateTime</a>( uint epoch )
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 QDateTime dt;
<a name="l00056"></a>00056 dt.setTime_t( epoch, Qt::UTC );
<a name="l00057"></a>00057 <span class="keywordflow">return</span>( dt );
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="comment">// Function to convert a QDateTime value into an epoch</span>
<a name="l00061"></a><a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e0a66cf7519a76dfa8f0dc06707492b2">00061</a> uint <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e0a66cf7519a76dfa8f0dc06707492b2" title="Converts QT DateTime to epoch format.">KonsoleKalendarEpoch::QDateTime2epoch</a>( QDateTime dt )
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063 <span class="comment">// THIS FUNCTION CAN BE OFF BY 1 HOUR DUE TO DAYLIGHT SAVINGS TIME.</span>
<a name="l00064"></a>00064 <span class="comment">// SORRY QT DOESN'T HANDLE DAYLIGHT SAVINGS TIME.</span>
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">// Compute #seconds to subtract for local timezone difference from UTC.</span>
<a name="l00067"></a>00067 <span class="keywordtype">int</span> offset = QDateTime::currentDateTime( Qt::UTC ).toTime_t()
<a name="l00068"></a>00068 - QDateTime::currentDateTime( Qt::LocalTime ).toTime_t();
<a name="l00069"></a>00069 <span class="keywordflow">return</span>( dt.toTime_t() - offset );
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="preprocessor">#if defined (TEST)</span>
<a name="l00073"></a>00073 <span class="preprocessor"></span><span class="comment">// Pass -DTEST to the compile command to create the test program, e.g:</span>
<a name="l00074"></a>00074 <span class="comment">// cc -DTEST -I/usr/local/KDE/include konsolekalendarepoch.cpp</span>
<a name="l00075"></a>00075 <span class="comment">// -L/usr/local/KDE/lib -lqt-mt -pthread</span>
<a name="l00076"></a>00076 main()
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 uint epoch;
<a name="l00079"></a>00079 QDateTime dt;
<a name="l00080"></a>00080
<a name="l00081"></a>00081 cout << endl;
<a name="l00082"></a>00082 cout << <span class="stringliteral">"NOTE: Some tests may be off by 1 hour (3600 secs) "</span>
<a name="l00083"></a>00083 << <span class="stringliteral">"due to daylight savings time"</span>
<a name="l00084"></a>00084 << endl << endl;
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="comment">// Test1</span>
<a name="l00087"></a>00087 epoch = 0;
<a name="l00088"></a>00088 dt = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e3d57bbec2bc5ae093d81b6c9f1be60c" title="Converts epoch time to QDateTime format.">KonsoleKalendarEpoch::epoch2QDateTime</a>( epoch );
<a name="l00089"></a>00089 cout << <span class="stringliteral">"TEST 1:"</span> << endl;
<a name="l00090"></a>00090 cout << <span class="stringliteral">"epoch="</span>
<a name="l00091"></a>00091 << epoch
<a name="l00092"></a>00092 << <span class="stringliteral">" converts to "</span>
<a name="l00093"></a>00093 << dt.toString( Qt::TextDate )
<a name="l00094"></a>00094 << endl;
<a name="l00095"></a>00095
<a name="l00096"></a>00096 epoch = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e0a66cf7519a76dfa8f0dc06707492b2" title="Converts QT DateTime to epoch format.">KonsoleKalendarEpoch::QDateTime2epoch</a>( dt );
<a name="l00097"></a>00097 cout << <span class="stringliteral">"date="</span>
<a name="l00098"></a>00098 << dt.toString( Qt::TextDate )
<a name="l00099"></a>00099 << <span class="stringliteral">" converts to "</span>
<a name="l00100"></a>00100 << <span class="stringliteral">"epoch="</span>
<a name="l00101"></a>00101 << epoch
<a name="l00102"></a>00102 << endl;
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="comment">// Test2</span>
<a name="l00105"></a>00105 epoch = 100000;
<a name="l00106"></a>00106 dt = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e3d57bbec2bc5ae093d81b6c9f1be60c" title="Converts epoch time to QDateTime format.">KonsoleKalendarEpoch::epoch2QDateTime</a>( epoch );
<a name="l00107"></a>00107 cout << <span class="stringliteral">"TEST 2:"</span> << endl;
<a name="l00108"></a>00108 cout << <span class="stringliteral">"epoch="</span>
<a name="l00109"></a>00109 << epoch
<a name="l00110"></a>00110 << <span class="stringliteral">" converts to "</span>
<a name="l00111"></a>00111 << dt.toString( Qt::TextDate )
<a name="l00112"></a>00112 << endl;
<a name="l00113"></a>00113
<a name="l00114"></a>00114 epoch = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e0a66cf7519a76dfa8f0dc06707492b2" title="Converts QT DateTime to epoch format.">KonsoleKalendarEpoch::QDateTime2epoch</a>( dt );
<a name="l00115"></a>00115 cout << <span class="stringliteral">"date="</span>
<a name="l00116"></a>00116 << dt.toString( Qt::TextDate )
<a name="l00117"></a>00117 << <span class="stringliteral">" converts to "</span>
<a name="l00118"></a>00118 << <span class="stringliteral">"epoch="</span>
<a name="l00119"></a>00119 << epoch
<a name="l00120"></a>00120 << endl;
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="comment">// Test3</span>
<a name="l00123"></a>00123 epoch = 10000000;
<a name="l00124"></a>00124 dt = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e3d57bbec2bc5ae093d81b6c9f1be60c" title="Converts epoch time to QDateTime format.">KonsoleKalendarEpoch::epoch2QDateTime</a>( epoch );
<a name="l00125"></a>00125 cout << <span class="stringliteral">"TEST 3:"</span> << endl;
<a name="l00126"></a>00126 cout << <span class="stringliteral">"epoch="</span>
<a name="l00127"></a>00127 << epoch
<a name="l00128"></a>00128 << <span class="stringliteral">" converts to "</span>
<a name="l00129"></a>00129 << dt.toString( Qt::TextDate )
<a name="l00130"></a>00130 << endl;
<a name="l00131"></a>00131
<a name="l00132"></a>00132 epoch = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e0a66cf7519a76dfa8f0dc06707492b2" title="Converts QT DateTime to epoch format.">KonsoleKalendarEpoch::QDateTime2epoch</a>( dt );
<a name="l00133"></a>00133 cout << <span class="stringliteral">"date="</span>
<a name="l00134"></a>00134 << dt.toString( Qt::TextDate )
<a name="l00135"></a>00135 << <span class="stringliteral">" converts to "</span>
<a name="l00136"></a>00136 << <span class="stringliteral">"epoch="</span>
<a name="l00137"></a>00137 << epoch
<a name="l00138"></a>00138 << endl;
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="comment">// Test4</span>
<a name="l00141"></a>00141 epoch = 1000000000;
<a name="l00142"></a>00142 dt = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e3d57bbec2bc5ae093d81b6c9f1be60c" title="Converts epoch time to QDateTime format.">KonsoleKalendarEpoch::epoch2QDateTime</a>( epoch );
<a name="l00143"></a>00143 cout << <span class="stringliteral">"TEST 4:"</span> << endl;
<a name="l00144"></a>00144 cout << <span class="stringliteral">"epoch="</span>
<a name="l00145"></a>00145 << epoch
<a name="l00146"></a>00146 << <span class="stringliteral">" converts to "</span>
<a name="l00147"></a>00147 << dt.toString( Qt::TextDate )
<a name="l00148"></a>00148 << endl;
<a name="l00149"></a>00149
<a name="l00150"></a>00150 epoch = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e0a66cf7519a76dfa8f0dc06707492b2" title="Converts QT DateTime to epoch format.">KonsoleKalendarEpoch::QDateTime2epoch</a>( dt );
<a name="l00151"></a>00151 cout << <span class="stringliteral">"date="</span>
<a name="l00152"></a>00152 << dt.toString( Qt::TextDate )
<a name="l00153"></a>00153 << <span class="stringliteral">" converts to "</span>
<a name="l00154"></a>00154 << <span class="stringliteral">"epoch="</span>
<a name="l00155"></a>00155 << epoch
<a name="l00156"></a>00156 << endl;
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="comment">// Test5</span>
<a name="l00159"></a>00159 epoch = 10000000000;
<a name="l00160"></a>00160 dt = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e3d57bbec2bc5ae093d81b6c9f1be60c" title="Converts epoch time to QDateTime format.">KonsoleKalendarEpoch::epoch2QDateTime</a>( epoch );
<a name="l00161"></a>00161 cout << <span class="stringliteral">"TEST 5:"</span> << endl;
<a name="l00162"></a>00162 cout << <span class="stringliteral">"epoch="</span>
<a name="l00163"></a>00163 << epoch
<a name="l00164"></a>00164 << <span class="stringliteral">" converts to "</span>
<a name="l00165"></a>00165 << dt.toString( Qt::TextDate )
<a name="l00166"></a>00166 << endl;
<a name="l00167"></a>00167
<a name="l00168"></a>00168 epoch = <a class="code" href="classKCal_1_1KonsoleKalendarEpoch.html#e0a66cf7519a76dfa8f0dc06707492b2" title="Converts QT DateTime to epoch format.">KonsoleKalendarEpoch::QDateTime2epoch</a>( dt );
<a name="l00169"></a>00169 cout << <span class="stringliteral">"date="</span>
<a name="l00170"></a>00170 << dt.toString( Qt::TextDate )
<a name="l00171"></a>00171 << <span class="stringliteral">" converts to "</span>
<a name="l00172"></a>00172 << <span class="stringliteral">"epoch="</span>
<a name="l00173"></a>00173 << epoch
<a name="l00174"></a>00174 << endl;
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176 <span class="preprocessor">#endif</span>
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