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AccuracyTest.xaml.cs
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/
AccuracyTest.xaml.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Tobii.Gaze.Core;
namespace GazeMonitor
{
public partial class AccuracyTest : Window
{
public AccuracyTest()
{
InitializeComponent();
}
private void Window_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Escape)
{
this.Close();
}
}
internal void Start()
{
Show();
DrawTargets();
}
private void DrawTargets()
{
double w = canvas.ActualWidth; double h = canvas.ActualHeight;
double r = w / 30; double m = 2 * r;
Brush b = Brushes.White;
DrawCircle(new Point(m, m), r, false, b);
DrawCircle(new Point(m, h / 2), r, false, b);
DrawCircle(new Point(m, h - m), r, false, b);
DrawCircle(new Point(w / 2, m), r, false, b);
DrawCircle(new Point(w / 2, h / 2), r, false, b);
DrawCircle(new Point(w / 2, h - m), r, false, b);
DrawCircle(new Point(w - m, m), r, false, b);
DrawCircle(new Point(w - m, h / 2), r, false, b);
DrawCircle(new Point(w - m, h - m), r, false, b);
r /= 10;
DrawCircle(new Point(m, m), r, true, b);
DrawCircle(new Point(m, h / 2), r, true, b);
DrawCircle(new Point(m, h - m), r, true, b);
DrawCircle(new Point(w / 2, m), r, true, b);
DrawCircle(new Point(w / 2, h / 2), r, true, b);
DrawCircle(new Point(w / 2, h - m), r, true, b);
DrawCircle(new Point(w - m, m), r, true, b);
DrawCircle(new Point(w - m, h / 2), r, true, b);
DrawCircle(new Point(w - m, h - m), r, true, b);
}
internal void EyeTrackerGazeData(object sender, GazeDataEventArgs e)
{
Dispatcher.Invoke(
System.Windows.Threading.DispatcherPriority.Normal, new Action(delegate() { DisplayGaze(e.GazeData); }));
}
internal void EyeTrackerError(object sender, EyeTrackerErrorEventArgs e)
{
Close();
}
private void DisplayGaze(GazeData data)
{
if (this.IsLoaded)
{
switch (data.TrackingStatus)
{
case TrackingStatus.BothEyesTracked:
DisplayGazeLeft(data.Left);
DisplayGazeRight(data.Right);
break;
case TrackingStatus.OnlyLeftEyeTracked:
case TrackingStatus.OneEyeTrackedProbablyLeft:
DisplayGazeLeft(data.Left);
break;
case TrackingStatus.OnlyRightEyeTracked:
case TrackingStatus.OneEyeTrackedProbablyRight:
DisplayGazeRight(data.Right);
break;
}
}
}
private void DisplayGazeRight(GazeDataEye gazeDataEye)
{
Point p = new Point(gazeDataEye.GazePointOnDisplayNormalized.X, gazeDataEye.GazePointOnDisplayNormalized.Y);
var circle = DrawCircle(Denormalize(p), 5, true, Brushes.Red);
circle.Loaded += new RoutedEventHandler(CircleLoaded);
}
private void DisplayGazeLeft(GazeDataEye gazeDataEye)
{
Point p = new Point(gazeDataEye.GazePointOnDisplayNormalized.X, gazeDataEye.GazePointOnDisplayNormalized.Y);
var circle = DrawCircle(Denormalize(p), 5, true, Brushes.Green);
circle.Loaded += new RoutedEventHandler(CircleLoaded);
}
private void CircleLoaded(object sender, RoutedEventArgs e)
{
DoubleAnimation fadeAnimation = new DoubleAnimation();
fadeAnimation.From = 1.0;
fadeAnimation.To = 0.0;
fadeAnimation.Duration = TimeSpan.FromSeconds(.5);
Storyboard fadeStoryboard = new Storyboard();
fadeStoryboard.Children.Add(fadeAnimation);
Storyboard.SetTarget(fadeAnimation, (Ellipse) sender);
Storyboard.SetTargetProperty(fadeAnimation, new PropertyPath(Ellipse.OpacityProperty));
fadeStoryboard.Begin();
}
private Ellipse DrawCircle(Point center, double radius, bool filled, Brush brush)
{
Ellipse circle = new Ellipse() { Height = radius*2, Width = radius*2 };
circle.Stroke = brush;
if (filled)
circle.Fill = brush;
Canvas.SetLeft(circle, center.X - radius);
Canvas.SetTop(circle, center.Y - radius);
canvas.Children.Add(circle);
return circle;
}
private Point Normalize(Point p)
{
return new Point(p.X / canvas.ActualWidth, p.Y / canvas.ActualHeight);
}
private Point Denormalize(Point p)
{
return new Point(p.X * canvas.ActualWidth, p.Y * canvas.ActualHeight);
}
}
}