globalsettings.cpp

   1 #include "globalsettings.h"
   2
   3 #include <QFileInfo>
   4 #include <QSettings>
   5 #include <QtDebug>
   6
   7 /***********************************************************************************************************
   8 * GlobalSettings
   9 *   Singleton class to be used from anywhere to allow global access to any configuration values
  10 *   Also handles reading and writing of files using QSettings API to allow for standardized file formats
  11 ************************************************************************************************************/
  12
  13 //initialization of static instance variable
  14 GlobalSettings* GlobalSettings::m_instance = NULL;
  15
  16 //private constructor so class must be instantiated through getInstance function
  17 GlobalSettings::GlobalSettings()
  18 {
  19 }
  20
  21 GlobalSettings::~GlobalSettings()
  22 {
  23 }
  24
  25 //FUNCTION: getInstance()
  26 //
  27 //  Checks to see if static instance member variable points to anything,
  28 //  if not, creates instance of settings class, loads the data from a file,
  29 //  then returns the pointer to the instance
  30
  31 GlobalSettings* GlobalSettings::getInstance()
  32 {
  33     if(m_instance == NULL)
  34     {
  35         m_instance = new GlobalSettings;
  36         m_instance->load();
  37     }
  38
  39     return m_instance;
  40 }
  41
  42 //FUNCTION: save()
  43 //
  44 //  Uses standard QSettings Qt API to store the settings in a file that is easily
  45 //  user editable.
  46
  47 bool GlobalSettings::save()
  48 {
  49     QSettings settingsObject("ti", "thermostat");
  50
  51     settingsObject.setValue("proxy-host", proxyHost());
  52     settingsObject.setValue("proxy-port", proxyPort());
  53     settingsObject.setValue("current-city", currentCity());
  54     settingsObject.setValue("temperature-format", temperatureFormat());
  55     settingsObject.setValue("time-format", timeFormat());
  56
  57     if(settingsObject.status() == QSettings::NoError)
  58         return true;
  59     else
  60         return false;
  61
  62 }
  63
  64 //FUNCTION: load()
  65 //
  66 //  Uses QSettings API to load config values from a previously written file and also can set default values if
  67 //  no configuration file is present
  68
  69 bool GlobalSettings::load()
  70 {
  71     QSettings settingsObject("ti", "thermostat");
  72
  73     setProxyInfo(settingsObject.value("proxy-host", "").toString(), settingsObject.value("proxy-port", 0).toInt());
  74     setCurrentCity(settingsObject.value("current-city", "Dallas,TX").toString());
  75     setTemperatureFormat(static_cast<GlobalSettings::TemperatureFormat>(settingsObject.value("temperature-format", GlobalSettings::TempFormatF).toInt()));
  76     setTimeFormat(static_cast<GlobalSettings::TimeFormat>(settingsObject.value("time-format", GlobalSettings::TimeFormat12h).toInt()));
  77     setDataPath(QFileInfo(settingsObject.fileName()).absolutePath());
  78
  79     //qDebug() << "Data Path: " << dataPath();
  80
  81     if(settingsObject.status() == QSettings::NoError)
  82         return true;
  83     else
  84         return false;
  85 }
  86
  87 void GlobalSettings::setProxyInfo(QString proxyHost, qint16 proxyPort)
  88 {
  89     m_proxyHost = proxyHost;
  90     m_proxyPort = proxyPort;
  91 }
  92
  93 void GlobalSettings::setCurrentCity(QString currentCity)
  94 {
  95     m_currentCity = currentCity;
  96 }
  97
  98 QString GlobalSettings::proxyHost()
  99 {
 100     return m_proxyHost;
 101 }
 102
 103 qint16 GlobalSettings::proxyPort()
 104 {
 105     return m_proxyPort;
 106 }
 107
 108 QString GlobalSettings::currentCity()
 109 {
 110     return m_currentCity;
 111 }
 112
 113 void GlobalSettings::setTemperatureFormat(TemperatureFormat temperatureFormat)
 114 {
 115     m_temperatureFormat = temperatureFormat;
 116 }
 117
 118 GlobalSettings::TemperatureFormat GlobalSettings::temperatureFormat()
 119 {
 120     return m_temperatureFormat;
 121 }
 122
 123 void GlobalSettings::setTimeFormat(TimeFormat timeFormat)
 124 {
 125     m_timeFormat = timeFormat;
 126 }
 127
 128 GlobalSettings::TimeFormat GlobalSettings::timeFormat()
 129 {
 130     return m_timeFormat;
 131 }
 132
 133 void GlobalSettings::setDataPath(QString dataPath)
 134 {
 135     m_dataPath = dataPath;
 136 }
 137
 138 QString GlobalSettings::dataPath()
 139 {
 140     return m_dataPath;
 141 }