tools/qmlviewer/deviceorientation_symbian.cpp

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  41
  42 #include "deviceorientation.h"
  43
  44 #include <e32base.h>
  45 #include <sensrvchannelfinder.h>
  46 #include <sensrvdatalistener.h>
  47 #include <sensrvchannel.h>
  48 #include <sensrvorientationsensor.h>
  49
  50 class SymbianOrientation : public DeviceOrientation, public MSensrvDataListener
  51 {
  52     Q_OBJECT
  53 public:
  54     SymbianOrientation()
  55         : DeviceOrientation(), m_current(UnknownOrientation), m_sensorChannel(0), m_channelOpen(false)
  56     {
  57         TRAP_IGNORE(initL());
  58         if (!m_sensorChannel)
  59             qWarning("No valid sensors found.");
  60     }
  61
  62     ~SymbianOrientation()
  63     {
  64         if (m_sensorChannel) {
  65             m_sensorChannel->StopDataListening();
  66             m_sensorChannel->CloseChannel();
  67             delete m_sensorChannel;
  68         }
  69     }
  70
  71     void initL()
  72     {
  73         CSensrvChannelFinder *channelFinder = CSensrvChannelFinder::NewLC();
  74         RSensrvChannelInfoList channelInfoList;
  75         CleanupClosePushL(channelInfoList);
  76
  77         TSensrvChannelInfo searchConditions;
  78         searchConditions.iChannelType = KSensrvChannelTypeIdOrientationData;
  79         channelFinder->FindChannelsL(channelInfoList, searchConditions);
  80
  81         for (int i = 0; i < channelInfoList.Count(); ++i) {
  82             TRAPD(error, m_sensorChannel = CSensrvChannel::NewL(channelInfoList[i]));
  83             if (!error)
  84                 TRAP(error, m_sensorChannel->OpenChannelL());
  85             if (!error) {
  86                 TRAP(error, m_sensorChannel->StartDataListeningL(this, 1, 1, 0));
  87                 m_channelOpen = true;
  88                 break;
  89            }
  90             if (error) {
  91                 delete m_sensorChannel;
  92                 m_sensorChannel = 0;
  93             }
  94         }
  95
  96         channelInfoList.Close();
  97         CleanupStack::Pop(&channelInfoList);
  98         CleanupStack::PopAndDestroy(channelFinder);
  99     }
 100
 101     Orientation orientation() const
 102     {
 103         return m_current;
 104     }
 105
 106    void setOrientation(Orientation) { }
 107
 108 private:
 109     DeviceOrientation::Orientation m_current;
 110     CSensrvChannel *m_sensorChannel;
 111     bool m_channelOpen;
 112     void pauseListening() {
 113         if (m_sensorChannel && m_channelOpen) {
 114             m_sensorChannel->StopDataListening();
 115             m_sensorChannel->CloseChannel();
 116             m_channelOpen = false;
 117         }
 118     }
 119
 120     void resumeListening() {
 121         if (m_sensorChannel && !m_channelOpen) {
 122             TRAPD(error, m_sensorChannel->OpenChannelL());
 123             if (!error) {
 124                 TRAP(error, m_sensorChannel->StartDataListeningL(this, 1, 1, 0));
 125                 if (!error) {
 126                     m_channelOpen = true;
 127                 }
 128             }
 129             if (error) {
 130                 delete m_sensorChannel;
 131                 m_sensorChannel = 0;
 132             }
 133         }
 134     }
 135
 136     void DataReceived(CSensrvChannel &channel, TInt count, TInt dataLost)
 137     {
 138         Q_UNUSED(dataLost)
 139         if (channel.GetChannelInfo().iChannelType == KSensrvChannelTypeIdOrientationData) {
 140             TSensrvOrientationData data;
 141             for (int i = 0; i < count; ++i) {
 142                 TPckgBuf<TSensrvOrientationData> dataBuf;
 143                 channel.GetData(dataBuf);
 144                 data = dataBuf();
 145                 Orientation orientation = UnknownOrientation;
 146                 switch (data.iDeviceOrientation) {
 147                 case TSensrvOrientationData::EOrientationDisplayUp:
 148                     orientation = Portrait;
 149                     break;
 150                 case TSensrvOrientationData::EOrientationDisplayRightUp:
 151                     orientation = Landscape;
 152                     break;
 153                 case TSensrvOrientationData::EOrientationDisplayLeftUp:
 154                     orientation = LandscapeInverted;
 155                     break;
 156                 case TSensrvOrientationData::EOrientationDisplayDown:
 157                     orientation = PortraitInverted;
 158                     break;
 159                 case TSensrvOrientationData::EOrientationUndefined:
 160                 case TSensrvOrientationData::EOrientationDisplayUpwards:
 161                 case TSensrvOrientationData::EOrientationDisplayDownwards:
 162                 default:
 163                     break;
 164                 }
 165
 166                 if (m_current != orientation && orientation != UnknownOrientation) {
 167                     m_current = orientation;
 168                     emit orientationChanged();
 169                 }
 170            }
 171         }
 172     }
 173
 174    void DataError(CSensrvChannel& /* channel */, TSensrvErrorSeverity /* error */)
 175    {
 176    }
 177
 178    void GetDataListenerInterfaceL(TUid /* interfaceUid */, TAny*& /* interface */)
 179    {
 180    }
 181 };
 182
 183
 184 DeviceOrientation* DeviceOrientation::instance()
 185 {
 186     static SymbianOrientation *o = 0;
 187     if (!o)
 188         o = new SymbianOrientation;
 189     return o;
 190 }
 191
 192 #include "deviceorientation_symbian.moc"