void OnNewContact(object sender, NewContactEventArgs e) { if (ClickMode != ClickMode.Hover) { e.Handled = true; if (e.Contact.Capture(this)) { IsPressed = true; if (ClickMode == ClickMode.Press && MultitouchScreen.GetContactsCaptured(this).Count() == 1) { bool failed = true; try { OnClick(); failed = false; } finally { if (failed) { IsPressed = false; e.Contact.ReleaseCapture(); } } } } } }
public void MultipleContactsCaptureSameObject() { Run(() => { window = new TestWindow(); window.NewContact += HandleEvent; window.Show(); HwndSource source = (HwndSource)PresentationSource.FromVisual(window); Assert.AreEqual(0, MultitouchScreen.GetContactsCaptured(window.testElement2).Count()); Assert.AreEqual(0, MultitouchScreen.GetContactsCaptured(window.testElement).Count()); window.ExecuteOnNextContact(c => c.Capture(window.testElement)); RawMultitouchReport report = new RawMultitouchReport(CreateContact(GetContactData(0, ContactState.New, new Point(100, 100)), 0, source)); InputManager.Current.ProcessInput(report); Assert.AreEqual(1, MultitouchScreen.GetContactsCaptured(window.testElement).Count()); window.ExecuteOnNextContact(c => c.Capture(window.testElement)); report = new RawMultitouchReport(CreateContact(GetContactData(1, ContactState.New, new Point(100, 100)), 1, source)); InputManager.Current.ProcessInput(report); Assert.AreEqual(2, MultitouchScreen.GetContactsCaptured(window.testElement).Count()); Assert.AreEqual(0, MultitouchScreen.GetContactsCaptured(window.testElement2).Count()); Dispatcher.ExitAllFrames(); resetEvent.Set(); }); resetEvent.WaitOne(); }
void OnContactRemoved(object sender, ContactEventArgs e) { if (ClickMode != ClickMode.Hover) { e.Handled = true; if (e.Contact.Captured == this) { e.Contact.ReleaseCapture(); if (MultitouchScreen.GetContactsCaptured(this).Count() == 0) { StopTimer(); IsPressed = false; } } } }
void OnContactRemoved(object sender, ContactEventArgs e) { if (ClickMode != ClickMode.Hover) { e.Handled = true; if (e.Contact.Captured == this) { bool shouldMakeClick = IsPressed && ClickMode == ClickMode.Release; e.Contact.ReleaseCapture(); if (MultitouchScreen.GetContactsCaptured(this).Count() == 0) { if (shouldMakeClick) { OnClick(); } IsPressed = false; } } } }
void OnContactMoved(object sender, ContactEventArgs e) { Point position = e.GetPosition(this); FixedHingeJoint joint; if (contactJoints.TryGetValue(e.Contact.Id, out joint)) { joint.Anchor = position.ToVector2D(); //scale Body body = joint.Bodies.First(); FrameworkElement frameworkElement = body.Tag as FrameworkElement; if (frameworkElement != null && GetIsScalable(frameworkElement)) { ScaleState state; if (elementToScale.TryGetValue(frameworkElement, out state)) { IEnumerable <Contact> contacts = MultitouchScreen.GetContactsCaptured((IInputElement)e.Source); double previousDistance = 0; double currentDistance = 0; int divisor = 0; Contact[] contactsArray = contacts.ToArray(); Point center = new Point(frameworkElement.ActualWidth / 2, frameworkElement.ActualHeight / 2); for (int i = 0; i < contactsArray.Length; i++) { for (int j = i + 1; j < contactsArray.Length; j++) { Point currFirst = contactsArray[j].GetPosition(this); Point currSecond = contactsArray[i].GetPosition(this); Vector vector = frameworkElement.PointFromScreen(currFirst) - frameworkElement.PointFromScreen(currSecond); currentDistance += vector.Length; Point prevFirst = contactsArray[j].GetPoints(this).FirstOrDefault(); if (default(Point) == prevFirst) { prevFirst = currFirst; } Point prevSecond = contactsArray[i].GetPoints(this).FirstOrDefault(); if (default(Point) == prevSecond) { prevSecond = currSecond; } Vector previousVector = frameworkElement.PointFromScreen(prevFirst) - frameworkElement.PointFromScreen(prevSecond); previousDistance += previousVector.Length; divisor++; } } if (divisor == 0) { divisor = 1; } previousDistance /= divisor; currentDistance /= divisor; double delta = currentDistance / previousDistance; if (double.IsNaN(delta)) { delta = 1; } var newScale = state.Scale * delta; if (newScale > MaxScale) { delta = MaxScale / state.Scale; } else if (newScale < MinScale) { delta = MinScale / state.Scale; } state.Scale *= delta; state.Center = center; body.Transformation *= Matrix2x3.FromScale(new Vector2D(delta, delta)); } } } }