// called when a device is unplugged
public void deviceRemoval(YModule m)
{
//Cycle on All DropDown gauges
for (int j = 0; j < gauges.GetLength(0); j++)
{
ComboBox d = gauges[j].getDropDown();
int selected = d.SelectedIndex;
// cycle on all gauge dropdown items
for (int i = d.Items.Count - 1; i >= 0; i--)
{ //search for function stored in the drop down list
MyTemperature mt = (MyTemperature)d.Items[i];
YTemperature t = mt.getYTemperature();
// test if the fucntion parent module is the the one removed
// note : it's too late to use get_module on t, so with use
// a little trick: with stored the module serial in the function
// userdate.
if ((string)t.get_userData() == m.get_serialNumber())
{ // remove it from the drop down
d.Items.RemoveAt(i);
// selected index update
if (selected == i)
{
selected--;
}
if (selected >= d.Items.Count)
{
selected = d.Items.Count - 1;
}
}
}
if (selected >= 0)
{
d.SelectedIndex = selected;
}
}
// disable empty dropdowns
for (int j = 0; j < gauges.GetLength(0); j++)
{
ComboBox d = gauges[j].getDropDown();
if (d.Enabled && d.Items.Count <= 0)
{
d.Enabled = false;
}
}
}
// poll temperature function for all gauges and
// update UI acordingly
private void refreshUI()
{
for (int j = 0; j < gauges.GetLength(0); j++)
{
ComboBox d = gauges[j].getDropDown();
if (d.Enabled)
{
if (d.SelectedIndex >= 0)
{
MyTemperature mt = (MyTemperature)d.Items[d.SelectedIndex];
YTemperature t = mt.getYTemperature();
gauges[j].setValue(t.get_currentValue());
}
}
gauges[j].refresh();
}
}
// called when a device is plugged
public void deviceArrival(YModule m)
{ // new device arrived, lets check if any Ytemperature function are hosted
int fctCount = m.functionCount();
YTemperature t;
// list the functions availble on the device
for (int i = 0; i < fctCount; i++)
{
string fname = m.functionId(i);
if (fname.StartsWith("temperature"))
{
t = YTemperature.FindTemperature(m.get_serialNumber() + '.' + fname);
// used in deviceRemoval
t.set_userData(t.get_module().get_serialNumber());
// ok temperature found, lets add it to all gauges control dropdown
for (int j = 0; j < gauges.GetLength(0); j++)
{
ComboBox d = gauges[j].getDropDown();
MyTemperature mt = new MyTemperature(t);
d.Items.Add(mt);
}
}
}
// enable the dropdowns if not empty
for (int j = 0; j < gauges.GetLength(0); j++)
{
ComboBox d = gauges[j].getDropDown();
if (!d.Enabled && d.Items.Count > 0)
{
if (j < d.Items.Count)
{
d.SelectedIndex = j;
d.Enabled = true;
}
}
}
}