characteristicinfo.cpp Example File

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  #include "characteristicinfo.h"
  #include "qbluetoothuuid.h"
  #include <QByteArray>

  CharacteristicInfo::CharacteristicInfo()
  {
  }

  CharacteristicInfo::CharacteristicInfo(const QLowEnergyCharacteristic &characteristic):
      m_characteristic(characteristic)
  {
  }

  void CharacteristicInfo::setCharacteristic(const QLowEnergyCharacteristic &characteristic)
  {
      m_characteristic = characteristic;
      emit characteristicChanged();
  }

  QString CharacteristicInfo::getName() const
  {
      QString name = m_characteristic.name();
      if (!name.isEmpty())
          return name;

      // find descriptor with CharacteristicUserDescription
      foreach (const QLowEnergyDescriptor &descriptor, m_characteristic.descriptors()) {
          if (descriptor.type() == QBluetoothUuid::CharacteristicUserDescription) {
              name = descriptor.value();
              break;
          }
      }

      if (name.isEmpty())
          name = "Unknown";

      return name;
  }

  QString CharacteristicInfo::getUuid() const
  {
      const QBluetoothUuid uuid = m_characteristic.uuid();
      bool success = false;
      quint16 result16 = uuid.toUInt16(&success);
      if (success)
          return QStringLiteral("0x") + QString::number(result16, 16);

      quint32 result32 = uuid.toUInt32(&success);
      if (success)
          return QStringLiteral("0x") + QString::number(result32, 16);

      return uuid.toString().remove(QLatin1Char('{')).remove(QLatin1Char('}'));
  }

  QString CharacteristicInfo::getValue() const
  {
      // Show raw string first and hex value below
      QByteArray a = m_characteristic.value();
      QString result;
      if (a.isEmpty()) {
          result = QStringLiteral("<none>");
          return result;
      }

      result = a;
      result += QLatin1Char('\n');
      result += a.toHex();

      return result;
  }

  QString CharacteristicInfo::getHandle() const
  {
      return QStringLiteral("0x") + QString::number(m_characteristic.handle(), 16);
  }

  QString CharacteristicInfo::getPermission() const
  {
      QString properties = "( ";
      int permission = m_characteristic.properties();
      if (permission & QLowEnergyCharacteristic::Read)
          properties += QStringLiteral(" Read");
      if (permission & QLowEnergyCharacteristic::Write)
          properties += QStringLiteral(" Write");
      if (permission & QLowEnergyCharacteristic::Notify)
          properties += QStringLiteral(" Notify");
      if (permission & QLowEnergyCharacteristic::Indicate)
          properties += QStringLiteral(" Indicate");
      if (permission & QLowEnergyCharacteristic::ExtendedProperty)
          properties += QStringLiteral(" ExtendedProperty");
      if (permission & QLowEnergyCharacteristic::Broadcasting)
          properties += QStringLiteral(" Broadcast");
      if (permission & QLowEnergyCharacteristic::WriteNoResponse)
          properties += QStringLiteral(" WriteNoResp");
      if (permission & QLowEnergyCharacteristic::WriteSigned)
          properties += QStringLiteral(" WriteSigned");
      properties += " )";
      return properties;
  }

  QLowEnergyCharacteristic CharacteristicInfo::getCharacteristic() const
  {
      return m_characteristic;
  }