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00029 #include <opie2/oprocess.h>
00030
00031 #include <opie2/oresource.h>
00032
00033 #include <qpe/config.h>
00034
00035 #include <qfile.h>
00036 #include <qlabel.h>
00037 #include <qlayout.h>
00038 #include <qpixmap.h>
00039 #include <qtextstream.h>
00040
00041 #include "weatherpluginwidget.h"
00042
00043 using namespace Opie::Core;
00044 WeatherPluginWidget::WeatherPluginWidget( QWidget *parent, const char* name )
00045 : QWidget( parent, name )
00046 {
00047 QHBoxLayout *layout = new QHBoxLayout( this, 1, 2 );
00048 layout->setAutoAdd( true );
00049
00050 weatherIcon = new QLabel( this );
00051 weatherIcon->setPixmap( Opie::Core::OResource::loadPixmap( "Clock", Opie::Core::OResource::SmallIcon ) );
00052
00053 weatherLabel = new QLabel( tr( "Retreiving current weather information." ), this );
00054 weatherLabel->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Preferred ) );
00055
00056 weatherIcon->setFixedSize( weatherLabel->height(), weatherLabel->height() );
00057
00058 startTimer(1000);
00059 }
00060
00061 WeatherPluginWidget::~WeatherPluginWidget()
00062 {
00063 QFile file( localFile );
00064 if ( file.exists() )
00065 {
00066 file.remove();
00067 }
00068 }
00069
00070 void WeatherPluginWidget::timerEvent( QTimerEvent *e )
00071 {
00072 killTimer( e->timerId() );
00073 retreiveData();
00074 }
00075
00076
00077
00078 void WeatherPluginWidget::retreiveData()
00079 {
00080 Config config( "todayweatherplugin");
00081 config.setGroup( "Config" );
00082
00083 location = config.readEntry( "Location", "" );
00084 useMetric = config.readBoolEntry( "Metric", true );
00085 frequency = config.readNumEntry( "Frequency", 5 );
00086
00087 startTimer( frequency * 60000 );
00088
00089 localFile = "/tmp/";
00090 localFile.append( location );
00091 localFile.append( ".TXT" );
00092
00093 remoteFile = "http://weather.noaa.gov/pub/data/observations/metar/stations/";
00094 remoteFile.append( location );
00095 remoteFile.append( ".TXT" );
00096
00097 QFile file( localFile );
00098 if ( file.exists() )
00099 {
00100 file.remove();
00101 }
00102
00103 OProcess *proc = new OProcess;
00104
00105 *proc << "wget" << "-q" << remoteFile << "-O" << localFile;
00106 connect( proc, SIGNAL( processExited(Opie::Core::OProcess*) ), this, SLOT( dataRetrieved(Opie::Core::OProcess*) ) );
00107 proc->start();
00108 }
00109
00110 void WeatherPluginWidget::displayWeather()
00111 {
00112 weatherData = QString::null;
00113
00114 QFile file( localFile );
00115
00116 if ( file.size() > 0 && file.open( IO_ReadOnly ) )
00117 {
00118 QTextStream data( &file );
00119 while ( !data.eof() )
00120 {
00121 weatherData.append( data.readLine() );
00122 }
00123 file.close();
00124 weatherData = weatherData.simplifyWhiteSpace();
00125
00126 QString tmpstr;
00127
00128 tmpstr.append( tr( "Temp: " ) );
00129 getTemp( weatherData );
00130 tmpstr.append( dataStr );
00131
00132 tmpstr.append( tr( " Wind: " ) );
00133 getWind( weatherData );
00134 tmpstr.append( dataStr );
00135
00136 tmpstr.append( tr( "\nPres: " ) );
00137 getPressure( weatherData );
00138 tmpstr.append( dataStr );
00139
00140 weatherLabel->setText( tmpstr );
00141
00142 tmpstr = "todayweatherplugin/";
00143 getIcon( weatherData );
00144 tmpstr.append( dataStr );
00145 weatherIcon->setPixmap( Opie::Core::OResource::loadPixmap( tmpstr, Opie::Core::OResource::SmallIcon ) );
00146 }
00147 else
00148 {
00149 weatherLabel->setText( tr( "Current weather data not available." ) );
00150 }
00151 }
00152
00153 void WeatherPluginWidget::getTemp( const QString &data )
00154 {
00155 int value;
00156 bool ok;
00157
00158 int pos = data.find( QRegExp( "M?[0-9]+/M?[0-9]+" ), 20 );
00159 if ( pos > -1 )
00160 {
00161 if ( data.at( pos ) == 'M' )
00162 {
00163 value = -1 * data.mid( pos + 1, 2 ).toInt( &ok );
00164 }
00165 else
00166 {
00167 value = data.mid( pos, 2 ).toInt( &ok );
00168 }
00169 if ( useMetric )
00170 {
00171 dataStr = QString::number( value );
00172 dataStr.append( 'C' );
00173 }
00174 else
00175 {
00176 dataStr = QString::number( ( value * 9 / 5 ) + 32 );
00177 dataStr.append( 'F' );
00178 }
00179 }
00180 else
00181 {
00182 dataStr = tr( "n/a" );
00183 }
00184 }
00185
00186 void WeatherPluginWidget::getWind( const QString &data )
00187 {
00188 int value;
00189 bool ok;
00190
00191 int pos = data.find( QRegExp( "[0-9]*G*[0-9]*KT" ), 20 );
00192 if ( pos > -1 )
00193 {
00194 if ( data.mid( pos, 3 ) != "VRB" )
00195 {
00196 value = data.mid( pos, 3 ).toInt( &ok );
00197 if ( ( value >= 0 && value < 23 ) || ( value >= 239 && value <= 360 ) )
00198 dataStr = tr("E " );
00199 else if ( value >= 23 && value < 69 )
00200 dataStr = tr( "NE " );
00201 else if ( value >= 69 && value < 113 )
00202 dataStr = tr( "N " );
00203 else if ( value >= 113 && value < 157 )
00204 dataStr = tr( "NW " );
00205 else if ( value >= 157 && value < 203 )
00206 dataStr = tr( "W " );
00207 else if ( value >= 203 && value < 248 )
00208 dataStr = tr( "SW " );
00209 else if ( value >= 248 && value < 294 )
00210 dataStr = tr( "S " );
00211 else if ( value >= 294 && value < 238 )
00212 dataStr = tr( "SE " );
00213 }
00214 if ( data.mid( pos + 5, 1) == "G" ||
00215 data.mid( pos + 5, 1) == "K" )
00216 {
00217 value = data.mid( pos + 3, 2 ).toInt( &ok );
00218 }
00219 else
00220 {
00221 value = data.mid( pos + 3, 3 ).toInt( &ok );
00222 }
00223 if ( useMetric )
00224 {
00225 value = value * 3.6 / 1.94;
00226 dataStr.append( QString::number( value ) );
00227 dataStr.append( tr( " KPH" ) );
00228 }
00229 else
00230 {
00231 value = value * 2.24 / 1.94;
00232 dataStr.append( QString::number( value ) );
00233 dataStr.append( tr( " MPH" ) );
00234 }
00235 }
00236 else
00237 {
00238 dataStr = tr( "n/a" );
00239 }
00240 }
00241
00242 void WeatherPluginWidget::getPressure( const QString &data )
00243 {
00244 float value;
00245 bool ok;
00246
00247 int pos = data.find( QRegExp( "[AQ][0-9]+" ), 20 );
00248 if ( pos > -1 )
00249 {
00250 value = data.mid( pos + 1, 4 ).toFloat( &ok );
00251 if ( useMetric )
00252 {
00253 if ( data.mid( pos, 1 ) == "A" )
00254 value *= 33.8639 / 100;
00255 dataStr = QString::number( value, 'f', 2 );
00256 dataStr.append( tr( " kPa" ) );
00257 }
00258 else
00259 {
00260 if ( data.mid( pos, 1 ) == "Q" )
00261 value /= 33.8639;
00262 else
00263 value /= 100;
00264 dataStr = QString::number( value, 'f', 2 );
00265 dataStr.append( tr( " Hg" ) );
00266 }
00267 }
00268 else
00269 {
00270 dataStr = tr( "n/a" );
00271 }
00272 }
00273
00274 void WeatherPluginWidget::getIcon(const QString &data )
00275 {
00276 dataStr = "psunny";
00277 if ( data.find( "CLR ", 20 ) > -1 ||
00278 data.find( "SKC ", 20 ) > -1 ||
00279 data.find( "CAVOK ", 20 ) > -1 )
00280 {
00281 dataStr = "sunny";
00282 }
00283 else if ( data.find( "SH ", 20 ) > -1 ||
00284 data.find( "DZ ", 20 ) > -1 ||
00285 data.find( "RA ", 20 ) > -1 ||
00286 data.find( "UP ", 20 ) > -1 ||
00287 data.find( "BR ", 20 ) > -1 )
00288 {
00289 dataStr = "shower";
00290 }
00291 else if ( data.find( "TS ", 20 ) > -1 )
00292 {
00293 dataStr = "tstorm";
00294 }
00295 else if ( data.find( "SN ", 20 ) > -1 ||
00296 data.find( "SG ", 20 ) > -1 )
00297 {
00298 dataStr = "snow";
00299 }
00300 else if ( data.find( "FZ ", 20 ) > -1 ||
00301 data.find( "GR ", 20 ) > -1 ||
00302 data.find( "GS ", 20 ) > -1 ||
00303 data.find( "PE ", 20 ) > -1 ||
00304 data.find( "IC ", 20 ) > -1 )
00305 {
00306 dataStr = "sleet";
00307 }
00308 }
00309
00310 void WeatherPluginWidget::dataRetrieved( OProcess *process )
00311 {
00312 if ( process->normalExit() )
00313 {
00314 displayWeather();
00315 }
00316 else
00317 {
00318 weatherLabel->setText( tr( "Current weather data not available." ) );
00319 }
00320 }
