/// <summary>
/// Here we read out the datapoints and add the description to the dataGridView
/// </summary>
public void readDatapointDescriptions(Connector connector)
{
try
{
// change mouse cursor to busy
this.Cursor = Cursors.WaitCursor;
// get datapoint description
BaosDatapointDescriptions baosDatapointDescriptions = new BaosDatapointDescriptions(connector);
baosDatapointDescriptions.readFromDevice();
List <BaosDatapointDescription> descriptions = baosDatapointDescriptions.getDescriptions();
foreach (BaosDatapointDescription desc in descriptions)
{
BaosDatapoint datapoint = new BaosDatapoint(connector, desc.getId());
String size = desc.isBitType() ? string.Format("{0} Bits", desc.getValueTypeSizeBits()) :
string.Format("{0} Bytes", desc.getValueTypeSizeBytes());
dataGridView.Rows.Add(datapoint.getId(), datapoint.getDescription(), size);
}
}
catch (kdrive.KdriveException exception)
{
MessageBox.Show(exception.Message, "Exception",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
finally
{
// reset mouse cursor
this.Cursor = Cursors.Default;
}
}
static void switchLight(Connector connector, bool enabled)
{
BaosDatapoint d = new BaosDatapoint(connector, 1);
if (d.getBoolean() != enabled)
{
string description = d.getDescription();
string action = enabled ? "on" : "off";
Console.WriteLine("Switching {0} : {1}", description, action);
d.setBoolean(enabled);
}
}
/// <summary>
/// Sends the datapoint value write request to the BAOS device
/// Our datapoint is a 1 bit boolean value, so we use the setBoolean function
/// There are several other encoding functions available, please refer to the
/// documentation
/// </summary>
private void sendBoolean(ushort id, bool enabled)
{
try
{
if (connector != null)
{
BaosDatapoint datapoint = new BaosDatapoint(connector, id);
datapoint.setBoolean(enabled);
}
}
catch (kdrive.KdriveException exception)
{
MessageBox.Show(exception.Message, "Exception",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
/// <summary>
/// Reads the datapoint value from the BAOS device
/// The response is returned via the BaosEvent event indication
/// so we don't have to handle it here
/// </summary>
bool readFloat(ushort id)
{
bool success = false;
try
{
if (connector != null)
{
BaosDatapoint baosDatapoint = new BaosDatapoint(connector, id);
baosDatapoint.get2OctetFloat();
success = true;
}
}
catch (kdrive.KdriveException exception)
{
MessageBox.Show(exception.Message, "Exception",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
return(success);
}
/// <summary>
/// This function will called in the main thread
/// The datapoint indication event handler
/// We show that the light has been switched
/// by changing the image associated with the indicated channel
/// </summary>
private void onDatapointEvent(object sender, BaosDatapoint datapoint)
{
try
{
ushort dpId = datapoint.getId();
switch (dpId)
{
case (ushort)GroupObject.Ch1Status:
case (ushort)GroupObject.Ch2Status:
switchLight(dpId, datapoint.getBoolean());
break;
case (ushort)GroupObject.Ch3Temperature:
updateFloat(dpId, datapoint.get2OctetFloat());
break;
}
}
catch (kdrive.KdriveException exception)
{
MessageBox.Show(exception.Message, "Exception",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
/// <summary>
/// This function will called from the event handler. It is in the context of the notification thread.
/// It is not safe here to update the gui, so we must invoke to run it in the main thread
/// </summary>
private void onDatapointEventInThreadContext(object sender, BaosDatapoint datapoint)
{
Invoke(new BaosEvent.DatapointEventHandler(onDatapointEvent), new object[] { sender, datapoint });
}
