second line should be:
```c++
    if( m_pConfig->getValueString(ConfigKey("[Waveform]","WaveformOverviewType"),
                                  "0").toInt() == 0 ) {
```

or
```c++
    if( m_pConfig->getValueString(ConfigKey("[Waveform]","WaveformOverviewType"),
            "0").toInt() == 0 ) {
```
?