--- a/src/FingersDance.GestureControl/GestureControl.cs Mon Oct 26 16:03:34 2009 +0100
+++ b/src/FingersDance.GestureControl/GestureControl.cs Tue Oct 27 01:59:56 2009 +0100
@@ -17,6 +17,11 @@
using Microsoft.Surface.Presentation;
using Microsoft.Surface.Presentation.Controls;
using System.Windows.Ink;
+using System.Threading;
+using System.IO;
+using System.Xml;
+using System.Reflection;
+using System.Xml.Linq;
namespace GestureControl
{
@@ -24,6 +29,14 @@
{
private double angle = 0;
public static readonly DependencyProperty GestureProperty;
+ Thread inProgess;
+ List<SurfaceGesture> _Gestures = new List<SurfaceGesture>();
+
+ /// <summary>
+ /// List of pattern readed in the patterns.xml
+ /// </summary>
+ public List<SurfaceGesturePattern> Pattern = new List<SurfaceGesturePattern>();
+
public String Gesture
{
get { return (String)GetValue(GestureControl.GestureProperty); }
@@ -31,24 +44,36 @@
}
#region GestureEvent
+
public delegate void GestureRoutedEventHandler(object sender, GestureRoutedEventArgs e);
- public static readonly RoutedEvent gestureEvent = EventManager.RegisterRoutedEvent(
- "GestureEvent", RoutingStrategy.Bubble, typeof(GestureRoutedEventHandler), typeof(GestureControl));
+
+ public static readonly RoutedEvent gestureEvent = EventManager.RegisterRoutedEvent("GestureEvent", RoutingStrategy.Bubble, typeof(GestureRoutedEventHandler), typeof(GestureControl));
public event GestureRoutedEventHandler GestureEvent
{
add { AddHandler(gestureEvent, value); }
remove { RemoveHandler(gestureEvent, value); }
}
- protected virtual void RaiseGestureEvent(String gesture)
+
+ public delegate void RaiseGestureEventCallBack(string gesture);
+
+ public void RaiseGestureEvent(string gesture)
{
- try
+ if (this.Dispatcher.CheckAccess())
{
- GestureRoutedEventArgs newEventArgs = new GestureRoutedEventArgs(GestureControl.gestureEvent, gesture);
- RaiseEvent(newEventArgs);
+ try
+ {
+ GestureRoutedEventArgs newEventArgs = new GestureRoutedEventArgs(GestureControl.gestureEvent, gesture);
+ RaiseEvent(newEventArgs);
+ }
+ catch (Exception e) { }
}
- catch (Exception e) { }
+ else
+ {
+ this.Dispatcher.BeginInvoke(new RaiseGestureEventCallBack(RaiseGestureEvent), gesture);
+ }
}
+
#endregion
static GestureControl()
@@ -58,6 +83,7 @@
GestureControl.GestureProperty = DependencyProperty.Register("Gesture", typeof(String), typeof(GestureControl),
new FrameworkPropertyMetadata("None", new PropertyChangedCallback(OnGestureChanged)));
}
+
private static void OnGestureChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
//Debug.WriteLine("changed", "Gesture");
@@ -68,11 +94,13 @@
base.OnInitialized(e);
this.InitializeControl();
}
+
protected void InitializeControl()
{
- base.AddHandler(SurfaceControl.PreviewContactDownEvent, new RoutedEventHandler(AreaDown));
- base.AddHandler(SurfaceInkCanvas.StrokeCollectedEvent, new RoutedEventHandler(AreaStrokeCollected));
+ base.AddHandler(SurfaceControl.PreviewContactDownEvent, new RoutedEventHandler(AreaDown));
+ base.AddHandler(SurfaceInkCanvas.StrokeCollectedEvent, new RoutedEventHandler(AreaStrokeCollected));
}
+
// get angle from the first contact of the stroke
protected void AreaDown(object source, RoutedEventArgs e)
{
@@ -82,6 +110,18 @@
protected void AreaStrokeCollected(object source, RoutedEventArgs e)
{
+ if (inProgess == null)
+ {
+ inProgess = new Thread(RunCapture);
+ inProgess.Start();
+ }
+ else
+ {
+ inProgess.Abort();
+ inProgess = null;
+ inProgess = new Thread(RunCapture);
+ inProgess.Start();
+ }
Debug.WriteLine("collected", "Stroke");
System.Windows.Controls.InkCanvasStrokeCollectedEventArgs tmp = e as System.Windows.Controls.InkCanvasStrokeCollectedEventArgs;
// Apply a rotation with the angle of the first contact
@@ -98,14 +138,154 @@
// create the gesture analyser and set the list
SurfaceGesture gesture = new SurfaceGesture(pointList, 1);
// try to get a pattern from the list, if one, raise a event
- this.Gesture = gesture.GetPattern();
- if (this.Gesture != "None")
- {
- this.RaiseGestureEvent(this.Gesture);
- }
- // clear the stroke
+ _Gestures.Add(gesture);
SurfaceInkCanvas ink = e.OriginalSource as SurfaceInkCanvas;
ink.Strokes.Clear();
}
+
+ void RunCapture()
+ {
+ try
+ {
+ Thread.Sleep(1000);
+ CommonPattern();
+ string gesture = GetPattern(_Gestures);
+ if (gesture != "None")
+ {
+ this.RaiseGestureEvent(gesture);
+ }
+ _Gestures.Clear();
+ inProgess = null;
+ }
+ catch (Exception)
+ {
+ inProgess = null;
+ }
+ }
+
+ #region Pattern
+ /// <ary>
+ /// return a String with the recognized pattern, "None" if no pattern
+ /// </summary>
+ /// <returns></returns>
+ public String GetPattern(List<SurfaceGesture> gestures)
+ {
+ int found = 0;
+ List<SurfaceGesture> tmp = new List<SurfaceGesture>();
+ foreach (SurfaceGesturePattern p in Pattern)
+ {
+ if (p.Count == gestures.Count)
+ {
+ int index = 0;
+ for (index = 0; index < p.Count; index++)
+ {
+ if (p[index].Count == gestures[index].Count)
+ {
+ int i;
+ for (i = 0; i < p[index].Count; i++)
+ {
+ if (gestures[index][i].Direction != p[index][i].Direction)
+ i = p[index].Count + 1;
+ }
+ if (i == p[index].Count)
+ found++;
+
+ }
+ }
+ if (found == p.Count)
+ return p.Name;
+ }
+ }
+
+ return "None";
+ }
+
+ /// <summary>
+ /// Load know patterns from the Resources/Patterns.xml file
+ /// </summary>
+ private void CommonPattern()
+ {
+ try
+ {
+ #region Load Patterns
+ Pattern.Clear();
+ System.IO.Stream file = Assembly.GetExecutingAssembly().GetManifestResourceStream("GestureControl.Resources.Patterns.xml");
+ XmlDocument xml = new XmlDocument();
+ xml.Load(file);
+ XmlElement root = xml.DocumentElement;
+ XmlNodeList nodes = root.SelectNodes("//Pattern");
+ SurfaceGesturePattern item;
+ foreach (XmlNode nod in nodes)
+ {
+ string name = nod["Name"].InnerText;
+ if (nod.ChildNodes.Count < 2)
+ continue;
+ item = new SurfaceGesturePattern() { Name = name };
+ List<XmlNode> childs = new List<XmlNode>();
+ foreach (XmlNode elt in nod.ChildNodes)
+ if (elt.Name.Equals("Childs"))
+ foreach (XmlNode c in elt.ChildNodes)
+ childs.Add(c);
+
+ SurfaceGesturePatternItem p;
+ int j = 0;
+ foreach (XmlNode node in childs)
+ {
+ string childname = node["Name"].InnerText;
+ List<XmlNode> subNodes = new List<XmlNode>();
+ foreach (XmlNode elt in node.ChildNodes)
+ if (elt.Name.Equals("Directions"))
+ foreach (XmlNode c in elt.ChildNodes)
+ subNodes.Add(c);
+ if (subNodes.Count == 0)
+ continue;
+
+ p = new SurfaceGesturePatternItem() { Name = childname };
+
+ foreach (XmlNode subNode in subNodes)
+ {
+ switch (subNode.InnerText)
+ {
+ case "Up":
+ p.Add(new SurfaceGestureVector() { Direction = SurfaceGestureVectorDirection.UP });
+ break;
+ case "Down":
+ p.Add(new SurfaceGestureVector() { Direction = SurfaceGestureVectorDirection.DOWN });
+ break;
+ case "Left":
+ p.Add(new SurfaceGestureVector() { Direction = SurfaceGestureVectorDirection.LEFT });
+ break;
+ case "Right":
+ p.Add(new SurfaceGestureVector() { Direction = SurfaceGestureVectorDirection.RIGHT });
+ break;
+ case "DownRight":
+ p.Add(new SurfaceGestureVector() { Direction = SurfaceGestureVectorDirection.DOWNRIGHT });
+ break;
+ case "DownLeft":
+ p.Add(new SurfaceGestureVector() { Direction = SurfaceGestureVectorDirection.DOWNLEFT });
+ break;
+ case "UpRight":
+ p.Add(new SurfaceGestureVector() { Direction = SurfaceGestureVectorDirection.UPRIGHT });
+ break;
+ case "UpLeft":
+ p.Add(new SurfaceGestureVector() { Direction = SurfaceGestureVectorDirection.UPLEFT });
+ break;
+ default:
+ break;
+ }
+ }
+ item.Add(p);
+ }
+ this.Pattern.Add(item);
+ }
+ #endregion
+ }
+ catch
+ {
+ throw new Exception("Error loading Patterns.xml");
+ }
+ }
+
+ #endregion
}
}