private static void ProcessPinch(TouchLocation[] touches)
{
TouchLocation aPreviousLocation1;
if (!touches[0].TryGetPreviousLocation(out aPreviousLocation1))
{
aPreviousLocation1 = touches[0];
}
TouchLocation aPreviousLocation2;
if (!touches[1].TryGetPreviousLocation(out aPreviousLocation2))
{
aPreviousLocation2 = touches[1];
}
Vector2 delta = touches[0].Position - aPreviousLocation1.Position;
Vector2 delta2 = touches[1].Position - aPreviousLocation2.Position;
TimeSpan timestamp = touches[0].Timestamp > touches[1].Timestamp ? touches[0].Timestamp : touches[1].Timestamp;
if (TouchPanel._dragGestureStarted != GestureType.None)
{
if (TouchPanel.GestureIsEnabled(GestureType.DragComplete))
{
TouchPanel.GestureList.Enqueue(new GestureSample(GestureType.DragComplete, timestamp, Vector2.Zero, Vector2.Zero, Vector2.Zero, Vector2.Zero));
}
TouchPanel._dragGestureStarted = GestureType.None;
}
TouchPanel.GestureList.Enqueue(new GestureSample(GestureType.Pinch, timestamp, touches[0].Position, touches[1].Position, delta, delta2));
TouchPanel._pinchGestureStarted = true;
TouchPanel._tapDisabled = true;
TouchPanel._holdDisabled = true;
}
private static void ProcessHold(TouchLocation touch)
{
if (!TouchPanel.GestureIsEnabled(GestureType.Hold) || TouchPanel._holdDisabled || TimeSpan.FromTicks(DateTime.Now.Ticks) - touch.PressTimestamp < TouchPanel._maxTicksToProcessHold)
{
return;
}
TouchPanel._holdDisabled = true;
TouchPanel.GestureList.Enqueue(new GestureSample(GestureType.Hold, touch.Timestamp, touch.Position, Vector2.Zero, Vector2.Zero, Vector2.Zero));
}
private static bool ProcessDoubleTap(TouchLocation touch)
{
if (!TouchPanel.GestureIsEnabled(GestureType.DoubleTap) || TouchPanel._tapDisabled || (double)Vector2.Distance(touch.Position, TouchPanel._lastTap.Position) > 35.0 || (touch.Timestamp - TouchPanel._lastTap.Timestamp).TotalMilliseconds > 300.0)
{
return(false);
}
TouchPanel.GestureList.Enqueue(new GestureSample(GestureType.DoubleTap, touch.Timestamp, touch.Position, Vector2.Zero, Vector2.Zero, Vector2.Zero));
TouchPanel._tapDisabled = true;
return(true);
}
private static void ProcessTap(TouchLocation touch)
{
if (!TouchPanel.GestureIsEnabled(GestureType.Tap) || TouchPanel._tapDisabled || (double)Vector2.Distance(touch.PressPosition, touch.Position) > 35.0 || TimeSpan.FromTicks(DateTime.Now.Ticks) - touch.PressTimestamp > TouchPanel._maxTicksToProcessHold)
{
return;
}
TouchPanel._lastTap = touch;
GestureSample gestureSample = new GestureSample(GestureType.Tap, touch.Timestamp, touch.Position, Vector2.Zero, Vector2.Zero, Vector2.Zero);
TouchPanel.GestureList.Enqueue(gestureSample);
}
private static void ProcessDrag(TouchLocation touch)
{
bool flag1 = TouchPanel.GestureIsEnabled(GestureType.HorizontalDrag);
bool flag2 = TouchPanel.GestureIsEnabled(GestureType.VerticalDrag);
bool flag3 = TouchPanel.GestureIsEnabled(GestureType.FreeDrag);
TouchLocation aPreviousLocation;
if (!flag1 && !flag2 && !flag3 || (touch.State != TouchLocationState.Moved || !touch.TryGetPreviousLocation(out aPreviousLocation)))
{
return;
}
Vector2 delta = touch.Position - aPreviousLocation.Position;
if (TouchPanel._dragGestureStarted != GestureType.FreeDrag)
{
bool flag4 = (double)Math.Abs(delta.X) > (double)Math.Abs(delta.Y * 2f);
bool flag5 = (double)Math.Abs(delta.Y) > (double)Math.Abs(delta.X * 2f);
bool flag6 = TouchPanel._dragGestureStarted == GestureType.None;
if (flag1 && (flag6 && flag4 || TouchPanel._dragGestureStarted == GestureType.HorizontalDrag))
{
delta.Y = 0.0f;
TouchPanel._dragGestureStarted = GestureType.HorizontalDrag;
}
else if (flag2 && (flag6 && flag5 || TouchPanel._dragGestureStarted == GestureType.VerticalDrag))
{
delta.X = 0.0f;
TouchPanel._dragGestureStarted = GestureType.VerticalDrag;
}
else
{
TouchPanel._dragGestureStarted = !flag3 || !flag6 ? GestureType.DragComplete : GestureType.FreeDrag;
}
}
if (TouchPanel._dragGestureStarted == GestureType.None || TouchPanel._dragGestureStarted == GestureType.DragComplete)
{
return;
}
TouchPanel._tapDisabled = true;
TouchPanel._holdDisabled = true;
TouchPanel.GestureList.Enqueue(new GestureSample(TouchPanel._dragGestureStarted, touch.Timestamp, touch.Position, Vector2.Zero, delta, Vector2.Zero));
}
private static void UpdateGestures(bool stateChanged)
{
int num1 = 0;
foreach (TouchLocation touchLocation in TouchPanel._gestureState)
{
num1 += touchLocation.State != TouchLocationState.Released ? 1 : 0;
}
if (num1 > 1)
{
TouchPanel._tapDisabled = true;
TouchPanel._holdDisabled = true;
}
foreach (TouchLocation touch in TouchPanel._gestureState)
{
switch (touch.State)
{
case TouchLocationState.Moved:
case TouchLocationState.Pressed:
if (touch.State != TouchLocationState.Pressed || !TouchPanel.ProcessDoubleTap(touch))
{
if (TouchPanel.GestureIsEnabled(GestureType.Pinch) && num1 > 1)
{
if (TouchPanel._pinchTouch[0].State == TouchLocationState.Invalid || TouchPanel._pinchTouch[0].Id == touch.Id)
{
TouchPanel._pinchTouch[0] = touch;
break;
}
else if (TouchPanel._pinchTouch[1].State == TouchLocationState.Invalid || TouchPanel._pinchTouch[1].Id == touch.Id)
{
TouchPanel._pinchTouch[1] = touch;
break;
}
else
{
break;
}
}
else
{
float num2 = Vector2.Distance(touch.Position, touch.PressPosition);
if (TouchPanel._dragGestureStarted == GestureType.None && (double)num2 < 35.0)
{
TouchPanel.ProcessHold(touch);
break;
}
else if (stateChanged)
{
TouchPanel.ProcessDrag(touch);
break;
}
else
{
break;
}
}
}
else
{
break;
}
case TouchLocationState.Released:
if (stateChanged)
{
if (TouchPanel._pinchGestureStarted && (touch.Id == TouchPanel._pinchTouch[0].Id || touch.Id == TouchPanel._pinchTouch[1].Id))
{
if (TouchPanel.GestureIsEnabled(GestureType.PinchComplete))
{
TouchPanel.GestureList.Enqueue(new GestureSample(GestureType.PinchComplete, touch.Timestamp, Vector2.Zero, Vector2.Zero, Vector2.Zero, Vector2.Zero));
}
TouchPanel._pinchGestureStarted = false;
TouchPanel._pinchTouch[0] = TouchLocation.Invalid;
TouchPanel._pinchTouch[1] = TouchLocation.Invalid;
break;
}
else if (num1 == 0)
{
if ((double)Vector2.Distance(touch.Position, touch.PressPosition) > 35.0 && (double)touch.Velocity.Length() > 100.0 && TouchPanel.GestureIsEnabled(GestureType.Flick))
{
TouchPanel.GestureList.Enqueue(new GestureSample(GestureType.Flick, touch.Timestamp, Vector2.Zero, Vector2.Zero, touch.Velocity, Vector2.Zero));
TouchPanel._dragGestureStarted = GestureType.None;
break;
}
else if (TouchPanel._dragGestureStarted != GestureType.None)
{
if (TouchPanel.GestureIsEnabled(GestureType.DragComplete))
{
TouchPanel.GestureList.Enqueue(new GestureSample(GestureType.DragComplete, touch.Timestamp, Vector2.Zero, Vector2.Zero, Vector2.Zero, Vector2.Zero));
}
TouchPanel._dragGestureStarted = GestureType.None;
break;
}
else
{
TouchPanel.ProcessTap(touch);
break;
}
}
else
{
break;
}
}
else
{
break;
}
}
}
if (!stateChanged)
{
return;
}
if (TouchPanel.GestureIsEnabled(GestureType.Pinch) && TouchPanel._pinchTouch[0].State != TouchLocationState.Invalid && TouchPanel._pinchTouch[1].State != TouchLocationState.Invalid)
{
TouchPanel.ProcessPinch(TouchPanel._pinchTouch);
}
else
{
TouchPanel._pinchGestureStarted = false;
TouchPanel._pinchTouch[0] = TouchLocation.Invalid;
TouchPanel._pinchTouch[1] = TouchLocation.Invalid;
}
if (num1 != 0)
{
return;
}
TouchPanel._tapDisabled = false;
TouchPanel._holdDisabled = false;
TouchPanel._dragGestureStarted = GestureType.None;
}
