/// <summary>
/// Construct a tab set to the specified scheme
/// </summary>
public ClassificationSchemeTab(ClassificationScheme classificationScheme)
: base()
{
this.BuildView(classificationScheme);
}
private void BuildView(ClassificationScheme classificationScheme)
{
this.SuspendLayout();
this.Text = classificationScheme.Settings.Name;
var table = GUIUtils.CreateTable(new double[] { .33, .33, .33 }, Direction.Horizontal);
// classifier
var classifierSettings = new DerivedTypeConfigurationPanel(typeof(IClassifier), classificationScheme.Classifier);
this.getClassifier = () => (IClassifier)classifierSettings.GetConfiguredObject();
table.Controls.Add(classifierSettings, 0, 0);
// general settings
var generalSettings = new ConfigurationPanel(classificationScheme.Settings);
table.Controls.Add(generalSettings, 1, 0);
// bin selection
var panel = new Panel() { Dock = DockStyle.Fill };
var binList = new CheckedListBox() { Dock = DockStyle.Fill, CheckOnClick = true };
binList.AddContextMenu();
this.ToolTip.SetToolTip(binList, "Select which time bins from each trial will be used to train the classifier");
var timeBins = GeneralClassifierSettings.MAX_BINS
.CountTo()
.Select(i => new TimeBin(i) { Checked = classificationScheme.Settings.SelectedBins.Contains(i) })
.ToIArray();
binList.ItemCheck += (sender, args) => ((TimeBin)binList.Items[args.Index]).Checked = (args.NewValue == CheckState.Checked);
Action<int> refreshBinList = (binWidth) =>
{
// ensure the right number of items
int binCount = GeneralClassifierSettings.GetBinCount(binWidth);
if (binList.Items.Count < binCount)
binList.Items.AddRange(timeBins.SubView(binList.Items.Count, binCount - binList.Items.Count).ToArray());
else
for (int i = binList.Items.Count - 1; i >= binCount; i--)
binList.Items.RemoveAt(i);
// ensure correct width and uncheck all
TimeBin timeBin;
for (int i = 0; i < binCount; i++)
{
timeBin = (TimeBin)binList.Items[i];
timeBin.BinWidth = binWidth;
binList.SetItemChecked(i, timeBin.Checked);
}
binList.Invalidate();
};
refreshBinList(classificationScheme.Settings.BinWidthMillis);
var binWidthProp = typeof(GeneralClassifierSettings).GetProperty("BinWidthMillis");
var nameProp = typeof(GeneralClassifierSettings).GetProperty("Name");
if (binWidthProp == null || nameProp == null)
throw new Exception("Failed to find properties!");
generalSettings.PropertyChanged += args =>
{
if (args.Property.Equals(binWidthProp))
refreshBinList((int)args.Getter());
else if (args.Property.Equals(nameProp))
this.Text = args.Getter().ToString();
};
this.getSettings = () =>
{
var settings = (GeneralClassifierSettings)generalSettings.GetConfiguredObject();
settings.SelectedBins = binList.CheckedIndices.Cast<int>().ToIArray();
return settings;
};
panel.Controls.Add(binList);
panel.Controls.Add("Time Bins".ToLabel());
var saveButton = GUIUtils.CreateFlatButton("Save", (b) =>
{
this.saveDialog.FileName = this.Text;
if (this.saveDialog.ShowDialog() != DialogResult.OK)
return;
bool saved = this.ClassificationScheme.TrySerializeToFile(this.saveDialog.FileName);
GUIUtils.Alert((saved ? "Saved" : "Failed to save")
+ " classifier info to " + this.saveDialog.FileName,
(saved ? MessageBoxIcon.Information : MessageBoxIcon.Error));
string directory = Path.GetDirectoryName(this.saveDialog.FileName);
if (Directory.Exists(directory))
this.saveDialog.InitialDirectory = directory;
});
saveButton.Dock = DockStyle.Bottom;
panel.Controls.Add(saveButton);
table.Controls.Add(panel, 2, 0);
this.Controls.Add(table);
this.ResumeLayout(false);
}
/// <summary>
/// Constructs a manager for the given scheme
/// </summary>
public ClassifierManager(ClassificationScheme classificationScheme)
{
this.Settings = classificationScheme.Settings;
this.Classifier = classificationScheme.Classifier.GetFactory()().AsOnlineClassifier();
}
