/// <summary>
/// Method triggered when the Converter Type box changes
/// </summary>
private void ConverterTypeBox_SelectedIndexChanged(object sender, EventArgs e)
{
if (_ignoreUpdate)
{
return;
}
// Delete the old data
_current.Converter = null;
// Ensure that the type is a Poller
if (ConverterTypeBox.SelectedItem == null)
{
return;
}
var type = _typeMappingConverter[(string)ConverterTypeBox.SelectedItem];
if (type == null || !typeof(DataConverter).IsAssignableFrom(type))
{
throw new Exception("Invalid object type! Not a Data Converter!");
}
// Start creating the skeleton, and display it
_current.Converter = (DataConverter)Activator.CreateInstance(type);
IOBlockViewer.UpdateConverterComponent();
}
/// <summary>
/// Refreshes the block types available for creation
/// </summary>
private void RefreshBlockListings()
{
var isOutput = InputOutputBox.SelectedIndex > 0;
var oldConverter = ConverterTypeBox.SelectedItem as Type;
var oldMedia = MediaTypeBox.SelectedItem as Type;
var oldPoller = PollerTypeBox.SelectedItem as Type;
_typeMappingConverter.Clear();
_typeMappingMedia.Clear();
_typeMappingPoller.Clear();
MediaTypeBox.Items.Clear();
PollerTypeBox.Items.Clear();
ConverterTypeBox.Items.Clear();
foreach (var plugin in _core.Plugins)
{
foreach (var connectable in plugin.DataConverterTypes)
{
_typeMappingConverter.Add(connectable.Key, connectable.Value);
ConverterTypeBox.Items.Add(connectable.Key);
}
foreach (var connectable in plugin.PollerTypes)
{
_typeMappingPoller.Add(connectable.Key, connectable.Value);
PollerTypeBox.Items.Add(connectable.Key);
}
foreach (var connectable in plugin.StreamTypes)
{
// Prevent any illegal connections from showing up
var mdata = connectable.Value.GetCustomAttribute <MetadataDataStreamAttribute>();
if (mdata == null || (isOutput && !mdata.AllowAsOutput) || (!isOutput && !mdata.AllowAsInput))
{
continue;
}
_typeMappingMedia.Add(connectable.Key, connectable.Value);
MediaTypeBox.Items.Add(connectable.Key);
}
}
// Restore all of the previously selected values
_ignoreUpdate = true;
if (oldConverter != null && ConverterTypeBox.Items.Contains(oldConverter))
{
ConverterTypeBox.SelectedItem = oldConverter;
}
else
{
_current.Converter = null;
}
if (oldMedia != null && MediaTypeBox.Items.Contains(oldMedia))
{
MediaTypeBox.SelectedItem = oldMedia;
}
else
{
_current.MediaConnection = null;
}
if (oldPoller != null && PollerTypeBox.Items.Contains(oldPoller))
{
PollerTypeBox.SelectedItem = oldPoller;
}
else
{
_current.Poller = null;
}
UpdateTypeBoxVisibility();
IOBlockViewer.UpdateConverterComponent();
IOBlockViewer.UpdatePollerComponent();
_ignoreUpdate = false;
}