/// <summary>
/// Sets the state of this user control, according to the zone state passed into.
/// It keeps the current selected Zone Id.
/// </summary>
/// <param name="zoneState">Zone state, which shall be set.</param>
public void updateZoneState(ZoneState zoneState)
{
if (_zoneState != zoneState)
{
_log.Trace(m => m("Update Zone state in control {0}, for zone {1} ({2}). New State='{3}'",
this.Name, GetSelectedZone().ToString(), _selectedZone.ToString(), zoneState));
_zoneState = zoneState;
if ((cmbSourceSelect != null) && (cmbSourceSelect.Items.Count > 0))
{
// triggers the method cmbSourceSelect_SelectedIndexChanged()
cmbSourceSelect.SelectedIndex = zoneState.Source.ObjectId - 1;
}
if ((cmbPowerStatusSelect != null) && (cmbPowerStatusSelect.Items.Count > 0))
{
// triggers the method cmbPowerStatusSelect_SelectedIndexChanged()
cmbPowerStatusSelect.SelectedItem = (zoneState.PowerStatus ? EZonePowerStatus.ZoneStatusON.ToString() : EZonePowerStatus.ZoneStatusOFF.ToString());
}
if (trackVolume != null)
{
trackVolume.Value = zoneState.Volume;
VolumeLevel_Changed();
}
}
}
/// <summary>
/// Private method to notify the subscribers about changes in the zone state.
/// </summary>
/// <param name="zoneId">Zone Id, of the changed zone. One-Based enumeration.</param>
/// <param name="oldZoneState">Old Zone State.</param>
/// <param name="newZoneState">New Zone State.</param>
private void notifyZoneStateSubscribers(ENuvoEssentiaZones zoneId, ZoneState oldZoneState, ZoneState newZoneState)
{
_log.Trace(m => m("Zone State with zoneId='{0}' has changed, notify the subscribers. oldState='{1}' newState='{2}'.", zoneId.ToString(), oldZoneState.ToString(), newZoneState.ToString()));
if (onZoneUpdated != null)
{
if (oldZoneState != newZoneState)
{
onZoneUpdated(this, new ZoneStateEventArgs(zoneId, oldZoneState, newZoneState));
}
}
}
