public TouchInfo GetInfoFromContactEvent(TouchAction2 action, System.Windows.Input.TouchEventArgs e)
{
//Get the point position from the ContactEventArgs (can optionally use e.Contact.getCenterPosition here for more accuracy)
System.Windows.Point position = e.GetTouchPoint(GestureFramework.LayoutRoot).Position; // new System.Windows.Point(e.TouchPoint.CenterX, e.TouchPoint.CenterY);
//Create a new touchinfo which will be used later to add a touchpoint
TouchInfo info = new TouchInfo();
//IF not Using in surface there will be not size or tag, therefore all the points are fingers.
System.Windows.Size size = e.TouchDevice.GetTouchPoint(GestureFramework.LayoutRoot).Size;
if (size.Height <= MinimumSize.Height && size.Width <= MinimumSize.Width)
{
info.IsFinger = true;
info.Tag = null;
}
else
{
info.IsFinger = e.TouchDevice.GetTouchPoint(GestureFramework.LayoutRoot).ToTouchInfo().IsFinger;
if (e.GetTouchPoint(GestureFramework.LayoutRoot).ToTouchInfo().Tag != null)
{
// info.Tag = e.GetTouchPoint(GestureFramework.LayoutRoot).ToTouchInfo().Tag;
/*
switch (e.TouchPoint.Tag.Type)
{
case Microsoft.Surface.Presentation.TagType.Byte:
info.Tag = e.Contact.Tag.Byte.ToString();
break;
case Microsoft.Surface.Presentation.TagType.Identity:
info.Tag = e.Contact.Tag.Identity.ToString();
break;
default:
info.Tag = null;
break;
}*/
}
else if (!info.IsFinger)
{
//info.Bounds = new Rect((double)e.TouchPoint.CenterX, (double)e.TouchPoint.CenterY, (double)e.TouchPoint.Bounds.Width, (double)e.TouchPoint.Bounds.Height);
info.Bounds = e.GetTouchPoint(GestureFramework.LayoutRoot).ToTouchInfo().Bounds;
}
}
//Set the action type to the passed in action
info.ActionType = action;
//Set the position of the touchinfo to the previously found position from e
info.Position = position;
//Set the deviceid of the touchinfo to the id of the contact
info.TouchDeviceId = e.GetTouchPoint(GestureFramework.LayoutRoot).TouchDevice.Id;
return info;
}
public void UpdateActiveTouchPoints(TouchAction2 action, Point position, int iPointerID)
{
TouchInfo info = new TouchInfo();
info.ActionType = action;
info.Position = position;
info.TouchDeviceId = iPointerID;
TouchPoint2 touchPoint = null;
//If it is contact down, we want to add the point, otherwise we want to update that particular point
if (action == TouchAction2.Down)
{
//VisualTreeHelper.HitTest(mainWindow, null, new HitTestResultCallback(HitTestCallBack), new GeometryHitTestParameters(m_egHitArea));
//add the new touch point to the base
touchPoint = base.AddNewTouchPoint(info, null);
touchPoint.UpdateSource();
}
else
{
touchPoint = base.UpdateActiveTouchPoint(info);
}
// Update local cache
if (_activeTouchPoints.ContainsKey(info.TouchDeviceId))
{
_activeTouchPoints[info.TouchDeviceId] = touchPoint;
_activeTouchInfos[info.TouchDeviceId] = info;
}
else
{
_activeTouchPoints.Add(info.TouchDeviceId, touchPoint);
_activeTouchInfos.Add(info.TouchDeviceId, info);
}
_lastTouchInfo = info;
RaiseEvents();
}
public void UpdateActiveTouchPoints(TouchAction2 action, TouchContactEventArgs e)
{
Point position = e.TouchContact.GetPosition(GestureFramework.LayoutRoot);
TouchInfo info = new TouchInfo();
info.ActionType = action;
info.Position = position;
info.TouchDeviceId = e.TouchContact.ID;
TouchPoint2 touchPoint = null;
//If it is contact down, we want to add the point, otherwise we want to update that particular point
if (action == TouchAction2.Down)
{
//add the new touch point to the base
touchPoint = base.AddNewTouchPoint(info, e.OriginalSource as UIElement);
}
else
{
touchPoint = base.UpdateActiveTouchPoint(info);
}
// Update local cache
if (_activeTouchPoints.ContainsKey(info.TouchDeviceId))
{
_activeTouchPoints[info.TouchDeviceId] = touchPoint;
_activeTouchInfos[info.TouchDeviceId] = info;
}
else
{
_activeTouchPoints.Add(info.TouchDeviceId, touchPoint);
_activeTouchInfos.Add(info.TouchDeviceId, info);
}
}
public TouchPoint2 UpdateActiveTouchPoints(TouchAction2 action, System.Windows.Input.TouchEventArgs e)
{
TouchPoint2 touchPoint = null;
TouchInfo info = GetInfoFromContactEvent(action, e);
//If it is contact down, we want to add the point, otherwise we want to update that particular point
if (action == TouchAction2.Down)
{
//add the new touch point to the base
touchPoint = base.AddNewTouchPoint(info, e.TouchDevice.Captured as UIElement);
}
else
{
//add the new touch point to the base
touchPoint = base.UpdateActiveTouchPoint(info, e.TouchDevice.Captured as UIElement);
}
/* Image<Bgr, Byte> bitImg = ImageHelper.getBetterImage(AddSnapshots(touchPoint), touchPoint);
if (bitImg != null)
{
touchPoint.Snapshot = ImageHelper.ExtractContourAndHull(bitImg);
}
*/
// Update local cache
if (_activeTouchPoints.ContainsKey(touchPoint.TouchDeviceId))
{
//_activeTouchPoints[info.TouchDeviceId] = touchPoint;
_activeTouchInfos[info.TouchDeviceId].Update(info);
_activeTouchPoints[info.TouchDeviceId].Update(info);
// _activeTouchPoints[info.TouchDeviceId].Snapshot.AddRange(touchPoint.Snapshot);
}
else
{
_activeTouchPoints.Add(info.TouchDeviceId, touchPoint);
_activeTouchInfos.Add(info.TouchDeviceId, info);
}
return touchPoint;
}
private TouchInfo MakeInfo(TuioCursor c, TouchAction2 action)
{
Tuple<double, double> screenDim = GetDimensions();
double screen_width = screenDim.Item1;
double screen_height = screenDim.Item2;
double x = c.getX() * screen_width;
double y = c.getY() * screen_height;
TouchInfo info = new TouchInfo();
info.ActionType = action;
info.Position = new Point(x, y);
info.TouchDeviceId = (int)c.getSessionID();
return info;
}
