src/Global_Utils.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2019 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Global.h"
  24
  25 //Qt includes
  26 #include <QApplication>
  27 #include <QDate>
  28 #include <QDir>
  29 #include <QFileInfo>
  30 #include <QIcon>
  31 #include <QMutex>
  32 #include <QProcessEnvironment>
  33 #include <QReadWriteLock>
  34 #include <QTextCodec>
  35 #include <QUuid>
  36 #include <QWidget>
  37
  38 //MUtils
  39 #include <MUtils/Global.h>
  40 #include <MUtils/OSSupport.h>
  41
  42 //CRT includes
  43 #include <time.h>
  44 #include <process.h>
  45
  46 ///////////////////////////////////////////////////////////////////////////////
  47 // GLOBAL VARS
  48 ///////////////////////////////////////////////////////////////////////////////
  49
  50 static QScopedPointer<QIcon> g_lamexp_icon_data;
  51 static QReadWriteLock        g_lamexp_icon_lock;
  52
  53 ///////////////////////////////////////////////////////////////////////////////
  54 // GLOBAL FUNCTIONS
  55 ///////////////////////////////////////////////////////////////////////////////
  56
  57 /*
  58  * Computus according to H. Lichtenberg
  59  */
  60 static bool lamexp_computus(const QDate &date)
  61 {
  62         int X = date.year();
  63         int A = X % 19;
  64         int K = X / 100;
  65         int M = 15 + (3*K + 3) / 4 - (8*K + 13) / 25;
  66         int D = (19*A + M) % 30;
  67         int S = 2 - (3*K + 3) / 4;
  68         int R = D / 29 + (D / 28 - D / 29) * (A / 11);
  69         int OG = 21 + D - R;
  70         int SZ = 7 - (X + X / 4 + S) % 7;
  71         int OE = 7 - (OG - SZ) % 7;
  72         int OS = (OG + OE);
  73
  74         if(OS > 31)
  75         {
  76                 return (date.month() == 4) && (date.day() == (OS - 31));
  77         }
  78         else
  79         {
  80                 return (date.month() == 3) && (date.day() == OS);
  81         }
  82 }
  83
  84 /*
  85  * Check for Thanksgiving
  86  */
  87 static bool lamexp_thanksgiving(const QDate &date)
  88 {
  89         int day = 0;
  90
  91         switch(QDate(date.year(), 11, 1).dayOfWeek())
  92         {
  93                 case 1: day = 25; break;
  94                 case 2: day = 24; break;
  95                 case 3: day = 23; break;
  96                 case 4: day = 22; break;
  97                 case 5: day = 28; break;
  98                 case 6: day = 27; break;
  99                 case 7: day = 26; break;
 100         }
 101
 102         return (date.month() == 11) && (date.day() == day);
 103 }
 104
 105 /*
 106  * Initialize app icon
 107  */
 108 const QIcon &lamexp_app_icon(void)
 109 {
 110         QReadLocker readLock(&g_lamexp_icon_lock);
 111
 112         //Already initialized?
 113         if(!g_lamexp_icon_data.isNull())
 114         {
 115                 return *g_lamexp_icon_data;
 116         }
 117
 118         readLock.unlock();
 119         QWriteLocker writeLock(&g_lamexp_icon_lock);
 120
 121         while(g_lamexp_icon_data.isNull())
 122         {
 123                 QDate currentDate = QDate::currentDate();
 124                 QTime currentTime = QTime::currentTime();
 125
 126                 if(lamexp_thanksgiving(currentDate))
 127                 {
 128                         g_lamexp_icon_data.reset(new QIcon(":/MainIcon6.png"));
 129                 }
 130                 else if(((currentDate.month() == 12) && (currentDate.day() == 31) && (currentTime.hour() >= 20)) || ((currentDate.month() == 1) && (currentDate.day() == 1)  && (currentTime.hour() <= 19)))
 131                 {
 132                         g_lamexp_icon_data.reset(new QIcon(":/MainIcon5.png"));
 133                 }
 134                 else if(((currentDate.month() == 10) && (currentDate.day() == 31) && (currentTime.hour() >= 12)) || ((currentDate.month() == 11) && (currentDate.day() == 1)  && (currentTime.hour() <= 11)))
 135                 {
 136                         g_lamexp_icon_data.reset(new QIcon(":/MainIcon4.png"));
 137                 }
 138                 else if((currentDate.month() == 12) && (currentDate.day() >= 24) && (currentDate.day() <= 26))
 139                 {
 140                         g_lamexp_icon_data.reset(new QIcon(":/MainIcon3.png"));
 141                 }
 142                 else if(lamexp_computus(currentDate))
 143                 {
 144                         g_lamexp_icon_data.reset(new QIcon(":/MainIcon2.png"));
 145                 }
 146                 else
 147                 {
 148                         g_lamexp_icon_data.reset(new QIcon(":/MainIcon1.png"));
 149                 }
 150         }
 151
 152         return *g_lamexp_icon_data;
 153 }
 154
 155 /*
 156  * Version number to human-readable string
 157  */
 158 const QString lamexp_version2string(const QString &pattern, unsigned int version, const QString &defaultText, const QString &tag)
 159 {
 160         if(version == UINT_MAX)
 161         {
 162                 return defaultText;
 163         }
 164
 165         QString result = pattern;
 166         const int digits = result.count(QChar(L'?'), Qt::CaseInsensitive);
 167
 168         if(digits < 1)
 169         {
 170                 return result;
 171         }
 172
 173         int pos = 0, index = -1;
 174         const QString versionStr = QString().sprintf("%0*u", digits, version);
 175         Q_ASSERT(versionStr.length() == digits);
 176
 177         while((index = result.indexOf(QChar(L'?'), Qt::CaseInsensitive)) >= 0)
 178         {
 179                 result[index] = versionStr[pos++];
 180         }
 181
 182         if(!tag.isEmpty())
 183         {
 184                 if((index = result.indexOf(QChar(L'#'), Qt::CaseInsensitive)) >= 0)
 185                 {
 186                         result.remove(index, 1).insert(index, tag);
 187                 }
 188         }
 189
 190         return result;
 191 }