/// <summary>
/// Update the mouse manager.
/// </summary>
public override void Update(bool isActive)
{
//clear out the taps & touches
Clicks.Clear();
Highlights.Clear();
Drags.Clear();
Drops.Clear();
Flicks.Clear();
Pinches.Clear();
if (null != Pinch)
{
//reset the pinch delta
Pinch.Delta = 0f;
}
if (isActive)
{
TouchCollection = TouchPanel.GetState();
//get the new taps & touches
GetGestures();
GetTouches();
}
//Add the pinch event if there is an ongoing gesture
if (null != Pinch)
{
Pinches.Add(new PinchEventArgs(Pinch.Delta));
}
}
/// <summary>
/// Update the mouse manager.
/// </summary>
public override void Update(bool isActive)
{
//clear out the taps & touches
Clicks.Clear();
Highlights.Clear();
Drags.Clear();
Drops.Clear();
Flicks.Clear();
Pinches.Clear();
Holds.Clear();
if (null != Pinch)
{
//reset the pinch delta
Pinch.Delta = 0f;
}
if (isActive && IsEnabled)
{
TouchCollection = TouchPanel.GetState();
//get the new taps & touches
GetGestures();
GetTouches();
}
//Add the pinch event if there is an ongoing gesture
if (null != Pinch)
{
if (Pinch.Finished)
{
Pinches.Add(new PinchEventArgs(Pinch.First, Pinch.Second, Pinch.Delta)
{
Release = true
});
Pinch = null;
}
else
{
Pinches.Add(new PinchEventArgs(Pinch.First, Pinch.Second, Pinch.Delta));
}
}
}
/// <summary>
/// get all the current touches
/// </summary>
private void GetTouches()
{
//go though the points that are being touched
foreach (var touch in TouchCollection)
{
var touchIndex = touch.Id % _numTouches;
if (touch.State == TouchLocationState.Pressed)
{
AddHighlightEvent(touch);
//set the drag operation, just in case
TouchStartPosition[touchIndex] = touch;
}
else if (touch.State == TouchLocationState.Moved)
{
AddHighlightEvent(touch);
//Sometimes TryGetPreviousLocation can fail.
//Bail out early if this happened or if the last state didn't move
TouchLocation prevLoc;
if (!touch.TryGetPreviousLocation(out prevLoc) ||
prevLoc.State != TouchLocationState.Moved ||
TouchStartPosition[touchIndex].Id != touch.Id)
{
continue;
}
// get your delta
var delta = touch.Position - prevLoc.Position;
//fire off drag event
Drags.Add(new DragEventArgs()
{
Start = ConvertCoordinate(TouchStartPosition[touchIndex].Position),
Current = ConvertCoordinate(touch.Position),
Delta = (touch.Position - prevLoc.Position),
Button = MouseButton.Left
});
}
else if (touch.State == TouchLocationState.Released)
{
//Sometimes TryGetPreviousLocation can fail.
//Bail out early if this happened or if the last state didn't move
TouchLocation prevLoc;
if (!touch.TryGetPreviousLocation(out prevLoc) ||
prevLoc.State != TouchLocationState.Moved ||
TouchStartPosition[touchIndex].Id != touch.Id)
{
continue;
}
// get your delta
var dragStartPosition = ConvertCoordinate(TouchStartPosition[touchIndex].Position);
var touchPos = ConvertCoordinate(touch.Position);
var delta = touchPos - dragStartPosition;
// Usually you don't want to do something if the user drags 1 pixel.
if (delta.LengthSquared() < _dragDelta)
{
continue;
}
//fire off drop event
Drops.Add(new DropEventArgs()
{
Start = dragStartPosition,
Drop = touchPos,
Button = MouseButton.Left
});
}
}
}
public EditDragsView(MainViewModel mainVM, Drags drags)
{
InitializeComponent();
DataContext = new EditDragsViewModel(mainVM, drags);
}
