/// <summary>
/// Here when we've lost mouse capture.
/// </summary>
private void OnLostMouseCapture(object sender, MouseEventArgs e)
{
if (_isMouseCaptured)
{
_manipulationProcessor.ProcessManipulators(Timestamp, null);
_isMouseCaptured = false;
}
}
/// <summary>
/// Processes the manipulators.
/// </summary>
private void ProcessManipulators()
{
if (_contentManipulationProcessor == null)
{
return;
}
List <Manipulator2D> manipulators = new List <Manipulator2D>();
foreach (TouchDevice touch in TouchesCaptured)
{
Point position = touch.GetPosition(this);
manipulators.Add(new Manipulator2D(touch.Id, (float)position.X, (float)position.Y));
}
_contentManipulationProcessor.ProcessManipulators(DateTime.UtcNow.Ticks, manipulators);
if (ScatterViewItem != null)
{
manipulators = new List <Manipulator2D>();
foreach (TouchDevice touch in ScatterViewItem.TouchesCaptured)
{
Point position = touch.GetPosition(ScatterViewItem);
manipulators.Add(new Manipulator2D(touch.Id, (float)position.X, (float)position.Y));
}
_scatterManipulationProcessor.ProcessManipulators(DateTime.UtcNow.Ticks, manipulators);
}
}
/******************************************************************************/
#region Private Methods
/// <summary>
/// Process a mouse event.
/// </summary>
/// <param name="mouse"></param>
private void ProcessMouse(MouseDevice mouse)
{
if ((mouse.Captured == this))
{
Point position = mouse.GetPosition(Container);
List <Manipulator2D> manipulators = new List <Manipulator2D>();
manipulators.Add(new Manipulator2D(
0,
(float)(position.X),
(float)(position.Y)));
// If translation is turned off and the pivot is turned on,
// make it act like there's a manipulator on the pivot point,
// to allow us to do scaling
if (((SupportedManipulations & Manipulations2D.Translate) == Manipulations2D.None) &&
IsPivotActive)
{
manipulators.Add(new Manipulator2D(
1,
(float)(Center.X),
(float)(Center.Y)));
}
const Manipulations2D translateAndRotate = Manipulations2D.Translate | Manipulations2D.Rotate;
if ((manipulators.Count == 1) &&
((manipulationProcessor.SupportedManipulations & translateAndRotate) == translateAndRotate) &&
IsPivotActive)
{
dragCenter = position;
}
else
{
dragCenter.X = double.NaN;
dragCenter.Y = double.NaN;
}
manipulationProcessor.ProcessManipulators(
Timestamp,
manipulators);
}
}
/// <summary>
/// Handles contact events on the ScrollViewer. Keeps the ManipulationProcessor tracking any contacts on the ScrollViewer.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="System.Windows.Input.TouchEventArgs"/> instance containing the event data.</param>
private void ScrollViewerTouchHandler(object sender, TouchEventArgs e)
{
List <Manipulator2D> manipulators = new List <Manipulator2D>();
foreach (TouchDevice touch in AssociatedObject.TouchesOver)
{
Point position = touch.GetTouchPoint(AssociatedObject).Position;
manipulators.Add(new Manipulator2D(touch.Id, (float)position.X, (float)position.Y));
}
_manipulationProcessor.ProcessManipulators(DateTime.UtcNow.Ticks, manipulators);
}
private void OnCapturedTouchReported(object sender, TouchReportedEventArgs e)
{
var parent = AssociatedObject.Parent as UIElement;
if (parent == null)
{
return;
}
var root = TouchHelper.GetRootElement(parent);
if (root == null)
{
return;
}
List <Manipulator2D> manipulators = null;
if (e.TouchPoints.FirstOrDefault() != null)
{
// Get transformation to convert positions to the parent's coordinate system.
var transform = root.TransformToVisual(parent);
foreach (var touchPoint in e.TouchPoints)
{
var position = touchPoint.Position;
// Convert to the parent's coordinate system.
position = transform.Transform(position);
// Create a manipulator.
var manipulator = new Manipulator2D(
touchPoint.TouchDevice.Id,
(float)(position.X),
(float)(position.Y));
if (manipulators == null)
{
// Lazy initialization.
manipulators = new List <Manipulator2D>();
}
manipulators.Add(manipulator);
}
}
// Process manipulations.
_manipulationProcessor.ProcessManipulators(DateTime.UtcNow.Ticks, manipulators);
}
// </Snippet_GamePiece_ProcessInertia>
// <Snippet_GamePiece_UpdateFromMouse>
#region UpdateFromMouse
public bool UpdateFromMouse(MouseState mouseState)
{
if (mouseState.LeftButton == ButtonState.Released)
{
if (isMouseCaptured)
{
manipulationProcessor.CompleteManipulation(Timestamp);
}
isMouseCaptured = false;
}
if (isMouseCaptured ||
(mouseState.LeftButton == ButtonState.Pressed &&
bounds.Contains(mouseState.X, mouseState.Y)))
{
isMouseCaptured = true;
Manipulator2D[] manipulators = new Manipulator2D[]
{
new Manipulator2D(0, mouseState.X, mouseState.Y)
};
dragPoint.X = mouseState.X;
dragPoint.Y = mouseState.Y;
manipulationProcessor.ProcessManipulators(Timestamp, manipulators);
}
// If the right button is pressed, stop the piece and move it to the center.
if (mouseState.RightButton == ButtonState.Pressed)
{
processInertia = false;
X = viewport.Width / 2;
Y = viewport.Height / 2;
rotation = 0;
}
return(isMouseCaptured);
}
private void drawingWnd_TouchDown(object sender, TouchEventArgs e)
{
TryAddManipulator(e.TouchDevice);
_zoomManipProc.ProcessManipulators(this.Timestamp, _manipulators.Values);
}