public void RaiseFingerMove(FingerEventArgs e)
{
if (FingerMove != null)
{
FingerMove(this, e);
}
}
public void RaiseFingerDown(FingerEventArgs e)
{
if (FingerDown != null)
{
FingerDown(this, e);
}
}
public void RaiseFingerUp(FingerEventArgs e)
{
if (FingerUp != null)
{
FingerUp(this, e);
}
}
private void OnFinger(string source, int e)
{
if (this.onFinger != null)
{
FingerEventType fingerEventType = (e == 10) ? FingerEventType.FINGER_UP : FingerEventType.FINGER_DOWN;
FingerEventArgs fe = new FingerEventArgs(source, fingerEventType);
this.onFinger(source, fe);
}
}
public void RaiseFingerDown(FingerEventArgs e)
{
IsChecked = !IsChecked;
if (FingerDown != null)
{
FingerDown(this, e);
}
}
private void SpaceCanvas_FingerDown(object sender, FingerEventArgs e)
{
if (grabButton.IsChecked)
{
if (e.FingerTracker.OnSurfaceFingers.Count() >= 2)
{
selectionRect.Opacity = 1.0;
}
}
//Trace.WriteLine("FingerDown: " + e.ID.ToString() + " @ " + e.Position.ToString());
}
private void SpaceCanvas_FingerUp(object sender, FingerEventArgs e)
{
if (grabButton.IsChecked)
{
if (e.FingerTracker.OnSurfaceFingers.Count() == 0)
{
if (lastFingerUpPosition.HasValue)
{
Point3D center = new Point3D((lastFingerUpPosition.Value.X + e.Position.X) / 2, (lastFingerUpPosition.Value.Y + e.Position.Y) / 2, 0);
Canvas.SetLeft(highlightRect, Canvas.GetLeft(selectionRect));
Canvas.SetTop(highlightRect, Canvas.GetTop(selectionRect));
highlightRect.Width = selectionRect.Width;
highlightRect.Height = selectionRect.Height;
highlightRect.Opacity = 1.0;
SpaceProvider.GrabAt(center, (Action)delegate()
{
Trace.WriteLine("Grabbed image at " + center.ToString());
//move to somewhere else!!!
byte[] data;
string mime;
SpaceProvider.GetLastGrabbedImageData(out data, out mime);
Dispatcher.BeginInvoke((Action)delegate()
{
highlightRect.Opacity = 0;
gallery.AddImage(data, mime);
}, null);
});
//grabButton.IsChecked = false;
}
selectionRect.Opacity = 0;
lastFingerUpPosition = null;
}
else
{
lastFingerUpPosition = e.Position;
}
}
//Trace.WriteLine("FingerUp: " + e.ID.ToString() + " @ " + e.Position.ToString());
}
private void handleFingerEvent(FingerEventType type, FingerEventArgs e)
{
Dispatcher.BeginInvoke((Action)delegate()
{
VisualTreeHelper.HitTest(this,
null,
(HitTestResultCallback)delegate(HitTestResult result)
{
//find ISpaceControl parent
DependencyObject current = result.VisualHit;
while(current != null && !(current is ISpaceControl))
{
current = VisualTreeHelper.GetParent(current);
}
if (current != null)
{
ISpaceControl spaceControl = current as ISpaceControl;
switch(type)
{
case FingerEventType.FingerDown:
spaceControl.RaiseFingerDown(e);
break;
case FingerEventType.FingerUp:
spaceControl.RaiseFingerUp(e);
break;
case FingerEventType.FingerMove:
spaceControl.RaiseFingerMove(e);
break;
}
return HitTestResultBehavior.Stop;
}
else
{
return HitTestResultBehavior.Continue;
}
},
new PointHitTestParameters(new Point(e.Position.X, e.Position.Y)));
}, null);
}
private ScatterRectangle HitTest(ScatterRectangle rectangle, FingerEventArgs args)
{
Point global = rectangle.TranslatePoint(args.Position, _canvas), temp;
ScatterRectangle curr;
BitmapImage bi;
byte[] pixel = new byte[4];
for (int i = 0; i < _canvas.Pieces.Length; ++i)
{
curr = _canvas.Pieces[i];
temp = _canvas.TranslatePoint(global, curr);
if (temp.X > curr.Width || temp.X < 0 || temp.Y > curr.Height || temp.Y < 0) continue;
bi = (curr.Background as ImageBrush).ImageSource as BitmapImage;
bi.CopyPixels(new System.Windows.Int32Rect((int) (temp.X / curr.Width * bi.PixelWidth),
(int) (temp.Y / curr.Height * bi.PixelHeight), 1, 1), pixel,
bi.PixelWidth * 4, 0);
if (pixel[3] != 0)
return curr;
}
return null;
}
private void OnContactRemoved(ScatterRectangle rectangle, FingerEventArgs e)
{
int index = (int) rectangle.Category;
if (!_elementsContacts[index].ContainsKey(e.FingerID))
return;
FixedHingeJoint removedJoint;
if (_contactJoints.TryGetValue(e.FingerID, out removedJoint))
{
removedJoint.Lifetime.IsExpired = true;
_contactBody.Remove(e.FingerID);
_contactJoints.Remove(e.FingerID);
}
_elementsContacts[index].Remove(e.FingerID);
_fingers.Remove(e.Position);
}
private void OnNewContact(ScatterRectangle rectangle, FingerEventArgs e)
{
int index = (int)rectangle.Category;
//not a new contact
if (_elementsContacts[index].ContainsKey(e.FingerID))
return;
//e.Position stands the whole table, get the relative position of Target, i.e. Design Window here
Point position = rectangle.TranslatePoint(e.Position, _canvas);
Vector2D contactPoint = new Vector2D((Scalar)position.X, (Scalar)position.Y);
_fingers.Add(position);
Body body = _bodies[index];
if (body.Shape.CanGetIntersection)
{
FixedHingeJoint joint = PhysicsHelper.FixedHingeJointFactory(body, contactPoint, new Lifespan());
_engine.AddJoint(joint);
_contactJoints[e.FingerID] = joint;
_contactBody[e.FingerID] = body;
_elementsContacts[index].Add(e.FingerID, new Contact(e.FingerID, position));
}
rectangle.CaptureFinger(e.FingerID);
}
void fingerTracker_FingerDown(object sender, FingerEventArgs e)
{
handleFingerEvent(FingerEventType.FingerDown, e);
}
private void AddNewPiePiece(FingerEventArgs finger)
{
DispatcherTimer startTimer = new DispatcherTimer();
startTimer.Tick += new EventHandler(startTimer_Elapsed);
startTimer.Interval = TimeSpan.FromMilliseconds(this._holdTime);
_holdFingerList.Add(finger.FingerID, startTimer);
_holdFingerPositionList.Add(finger.FingerID, finger.Position);
PiePiece pie = new PiePiece();
pie.Radius = 24;
pie.InnerRadius = 12;
pie.Fill = Brushes.Beige;
pie.Opacity = .8d;
Canvas.SetLeft(pie, finger.Position.X);
Canvas.SetTop(pie, finger.Position.Y);
PopupStage.Children.Add(pie);
pie.BeginAnimation(PiePiece.WedgeAngleProperty, new DoubleAnimation(360, new Duration(TimeSpan.FromMilliseconds(this._holdTime))));
startTimer.Tag = pie;
startTimer.Start();
}
private void RemovePiePiece(FingerEventArgs finger)
{
DispatcherTimer timer = _holdFingerList[finger.FingerID];
timer.Stop();
PiePiece pie = timer.Tag as PiePiece;
pie.BeginAnimation(PiePiece.WedgeAngleProperty, null);
PopupStage.Children.Remove(pie);
_holdFingerList.Remove(finger.FingerID);
_holdFingerPositionList.Remove(finger.FingerID);
}
void menu_Loaded(object sender, RoutedEventArgs e)
{
UElementMenu menu = sender as UElementMenu;
if (!_menuList.ContainsKey(menu))
{
// remove the menu
PopupStage.Children.Remove(menu);
return;
}
int finger = _menuList[menu];
// raise the finger down event on that menu so that it can be open when it is shown
FingerEventArgs args = new FingerEventArgs(FingerEventType.FINGER_DOWN_EVENT, finger, new Point(20, 20));
Collection<FingerEventArgs> collection = new Collection<FingerEventArgs>();
collection.Add(args);
menu.RaiseEvent(new MultiTouchEventArgs(collection, 0));
}
private void SpaceCanvas_FingerMove(object sender, FingerEventArgs e)
{
if (grabButton.IsChecked)
{
//TODO FIXME: This thread is not the same as FingerTracker's thread. How to synchronize?
if (e.FingerTracker.OnSurfaceFingers.Count() >= 2)
{
Finger[] fingers = new Finger[2];
int count = 0;
foreach (Finger f in e.FingerTracker.OnSurfaceFingers)
{
fingers[count] = f;
count++;
if (count >= 2)
{
break;
}
}
Canvas.SetLeft(selectionRect, Math.Min(fingers[0].Position.X, fingers[1].Position.X));
Canvas.SetTop(selectionRect, Math.Min(fingers[0].Position.Y, fingers[1].Position.Y));
selectionRect.Width = Math.Abs(fingers[0].Position.X - fingers[1].Position.X);
selectionRect.Height = Math.Abs(fingers[0].Position.Y - fingers[1].Position.Y);
}
else if (e.FingerTracker.OnSurfaceFingers.Count() == 1 && lastFingerUpPosition.HasValue)
{
Finger f = e.FingerTracker.OnSurfaceFingers.First();
Canvas.SetLeft(selectionRect, Math.Min(lastFingerUpPosition.Value.X, f.Position.X));
Canvas.SetTop(selectionRect, Math.Min(lastFingerUpPosition.Value.Y, f.Position.Y));
selectionRect.Width = Math.Abs(lastFingerUpPosition.Value.X - f.Position.X);
selectionRect.Height = Math.Abs(lastFingerUpPosition.Value.Y - f.Position.Y);
}
}
//Trace.WriteLine("FingerMove: " + e.ID.ToString() + " @ " + e.Position.ToString());
}
private void OnContactMove(ScatterRectangle rectangle, FingerEventArgs e)
{
int index = (int)rectangle.Category;
if (!_elementsContacts[index].ContainsKey(e.FingerID)) return;
Point position = rectangle.TranslatePoint(e.Position, _canvas);
_elementsContacts[index][e.FingerID].UpdatePosition(position);
FixedHingeJoint joint;
if (_contactJoints.TryGetValue(e.FingerID, out joint))
{
// move
joint.Anchor = new Vector2D((Scalar)position.X, (Scalar)position.Y);
}
}
private void grabButton_FingerDown(object sender, FingerEventArgs e)
{
gallery.ClearAllImages();
}