private void OnManipulationHostPointerMoved(DrawingSurfaceManipulationHost sender, Windows.UI.Core.PointerEventArgs args)
{
if (m_surfacePainter == null)
{
return;
}
}
private void OnPointerReleased(DrawingSurfaceManipulationHost sender, PointerEventArgs args)
{
if (this.PointerReleased != null)
{
this.PointerReleased(sender, args);
}
}
/// <summary>
/// Sets the manipulation host.
/// </summary>
/// <param name="manipulationHost">Manipulation host object.</param>
public void SetManipulationHost(DrawingSurfaceManipulationHost manipulationHost)
{
if (this.ManipulationHostChanged != null)
{
this.ManipulationHostChanged(this, manipulationHost);
}
}
private static void OnPointerReleased(DrawingSurfaceManipulationHost sender, PointerEventArgs args)
{
var pointerPoint = args.CurrentPoint;
// To convert from DIPs (device independent pixels) to screen resolution pixels.
var dipFactor = DisplayProperties.LogicalDpi / 96.0f;
var pos = new Vector2((float)pointerPoint.Position.X, (float)pointerPoint.Position.Y) * dipFactor;
TouchPanel.AddEvent((int)pointerPoint.PointerId, TouchLocationState.Released, pos);
}
/// <summary>
/// Binds to the following events:
/// <see cref="DrawingSurfaceManipulationHost.PointerMoved"/>,
/// <see cref="DrawingSurfaceManipulationHost.PointerPressed"/>,
/// <see cref="DrawingSurfaceManipulationHost.PointerReleased"/>
/// </summary>
/// <param name="manipulationHost">An instance of <see cref="DrawingSurfaceManipulationHost"/>.</param>
/// <exception cref="ArgumentNullException">Is thrown if <paramref name="manipulationHost"/> is null.</exception>
void IDrawingSurfaceManipulationHandler.SetManipulationHost(DrawingSurfaceManipulationHost manipulationHost)
{
if (manipulationHost == null)
{
throw new ArgumentNullException("manipulationHost");
}
manipulationHost.PointerMoved += (_, e) => CreateAndAddPoint(PointerEventType.Moved, e.CurrentPoint);
manipulationHost.PointerPressed += (_, e) => CreateAndAddPoint(PointerEventType.Pressed, e.CurrentPoint);
manipulationHost.PointerReleased += (_, e) => CreateAndAddPoint(PointerEventType.Released, e.CurrentPoint);
}
/// <summary>
/// Wird aufgerufen, wenn der Bearbeitungshandler für ein DrawingSurface- oder DrawingSurfaceBackgroundGrid-Steuerelement festgelegt wird.
/// </summary>
/// <param name="manipulationHost">Das Objekt, das die Bearbeitungsereignisse von der Zeichenoberfläche empfängt.</param>
public void SetManipulationHost(DrawingSurfaceManipulationHost manipulationHost)
{
if (m_surfacePainter == null)
{
return;
}
if (m_manipulationHost != null)
{
m_manipulationHost.PointerMoved -= OnManipulationHostPointerMoved;
m_manipulationHost.PointerPressed -= OnManipulationHostPointerPressed;
m_manipulationHost.PointerReleased -= OnManipulationHostPointerReleased;
}
m_manipulationHost = manipulationHost;
if (m_manipulationHost != null)
{
m_manipulationHost.PointerMoved += OnManipulationHostPointerMoved;
m_manipulationHost.PointerPressed += OnManipulationHostPointerPressed;
m_manipulationHost.PointerReleased += OnManipulationHostPointerReleased;
}
}
/// <summary>
/// Binds to the following events:
/// <see cref="DrawingSurfaceManipulationHost.PointerMoved"/>,
/// <see cref="DrawingSurfaceManipulationHost.PointerPressed"/>,
/// <see cref="DrawingSurfaceManipulationHost.PointerReleased"/>
/// </summary>
/// <param name="manipulationHost">An instance of <see cref="DrawingSurfaceManipulationHost"/>.</param>
/// <exception cref="ArgumentNullException">Is thrown if <paramref name="manipulationHost"/> is null.</exception>
void IDrawingSurfaceManipulationHandler.SetManipulationHost(DrawingSurfaceManipulationHost manipulationHost)
{
if (manipulationHost == null) throw new ArgumentNullException("manipulationHost");
manipulationHost.PointerMoved += (_, e) => CreateAndAddPoint(PointerEventType.Moved, e.CurrentPoint);
manipulationHost.PointerPressed += (_, e) => CreateAndAddPoint(PointerEventType.Pressed, e.CurrentPoint);
manipulationHost.PointerReleased += (_, e) => CreateAndAddPoint(PointerEventType.Released, e.CurrentPoint);
}
public void SetManipulationHost(DrawingSurfaceManipulationHost manipulationHost)
{
manipulationHost.PointerPressed += OnPointerPressed;
manipulationHost.PointerMoved += OnPointerMoved;
manipulationHost.PointerReleased += OnPointerReleased;
}
private void OnManipulationHostChanged(object sender, DrawingSurfaceManipulationHost host)
{
host.PointerPressed += this.OnPointerPressed;
host.PointerMoved += this.OnPointerMoved;
host.PointerReleased += this.OnPointerReleased;
}