internal void INTERNAL_Reset()
{
activePointers.Clear();
numPointers = 0;
delayedStateChange = GestureState.Idle;
pointersNumState = PointersNumState.TooFew;
requiredGestureFailed = false;
reset();
}
internal void INTERNAL_PointersUpdated(IList <Pointer> pointers)
{
pointersNumState = PointersNumState.InRange;
if (minPointers > 0 && numPointers < minPointers)
{
pointersNumState = PointersNumState.TooFew;
}
if (maxPointers > 0 && pointersNumState == PointersNumState.InRange && numPointers > maxPointers)
{
pointersNumState = PointersNumState.TooMany;
}
pointersUpdated(pointers);
}
internal void INTERNAL_PointersCancelled(IList <Pointer> pointers)
{
var count = pointers.Count;
var total = numPointers - count;
pointersNumState = PointersNumState.InRange;
if (minPointers <= 0)
{
// have no pointers
if (total == 0)
{
pointersNumState = PointersNumState.PassedMinThreshold;
}
}
else
{
if (numPointers >= minPointers)
{
// had >= MinPointers, got < MinPointers
if (total < minPointers)
{
pointersNumState = PointersNumState.PassedMinThreshold;
}
}
// last event we already were under MinPointers
else
{
pointersNumState = PointersNumState.TooFew;
}
}
if (maxPointers > 0)
{
if (numPointers > maxPointers)
{
if (total <= maxPointers)
{
// this event we crossed both MinPointers and MaxPointers
if (pointersNumState == PointersNumState.PassedMinThreshold)
{
pointersNumState = PointersNumState.PassedMinMaxThreshold;
}
// this event we crossed MaxPointers
else
{
pointersNumState = PointersNumState.PassedMaxThreshold;
}
}
// last event we already were over MaxPointers
else
{
pointersNumState = PointersNumState.TooMany;
}
}
}
for (var i = 0; i < count; i++)
{
activePointers.Remove(pointers[i]);
}
numPointers = total;
pointersCancelled(pointers);
}
internal void INTERNAL_PointersReleased(IList <Pointer> pointers)
{
var count = pointers.Count;
var total = numPointers - count;
pointersNumState = PointersNumState.InRange;
if (minPointers <= 0)
{
// have no pointers
if (total == 0)
{
pointersNumState = PointersNumState.PassedMinThreshold;
}
}
else
{
if (numPointers >= minPointers)
{
// had >= MinPointers, got < MinPointers
if (total < minPointers)
{
pointersNumState = PointersNumState.PassedMinThreshold;
}
}
// last event we already were under MinPointers
else
{
pointersNumState = PointersNumState.TooFew;
}
}
if (maxPointers > 0)
{
if (numPointers > maxPointers)
{
if (total <= maxPointers)
{
// this event we crossed both MinPointers and MaxPointers
if (pointersNumState == PointersNumState.PassedMinThreshold)
{
pointersNumState = PointersNumState.PassedMinMaxThreshold;
}
// this event we crossed MaxPointers
else
{
pointersNumState = PointersNumState.PassedMaxThreshold;
}
}
// last event we already were over MaxPointers
else
{
pointersNumState = PointersNumState.TooMany;
}
}
}
for (var i = 0; i < count; i++)
{
activePointers.Remove(pointers[i]);
}
numPointers = total;
if (NumPointers == 0)
{
var lastPoint = pointers[count - 1];
if (shouldCachePointerPosition(lastPoint))
{
cachedScreenPosition = lastPoint.Position;
cachedPreviousScreenPosition = lastPoint.PreviousPosition;
}
else
{
cachedScreenPosition = TouchManager.INVALID_POSITION;
cachedPreviousScreenPosition = TouchManager.INVALID_POSITION;
}
}
pointersReleased(pointers);
}
internal void INTERNAL_PointersPressed(IList <Pointer> pointers)
{
var count = pointers.Count;
var total = numPointers + count;
pointersNumState = PointersNumState.InRange;
if (minPointers <= 0)
{
// MinPointers is not set and we got our first pointers
if (numPointers == 0)
{
pointersNumState = PointersNumState.PassedMinThreshold;
}
}
else
{
if (numPointers < minPointers)
{
// had < MinPointers, got >= MinPointers
if (total >= minPointers)
{
pointersNumState = PointersNumState.PassedMinThreshold;
}
else
{
pointersNumState = PointersNumState.TooFew;
}
}
}
if (maxPointers > 0)
{
if (numPointers <= maxPointers)
{
if (total > maxPointers)
{
// this event we crossed both MinPointers and MaxPointers
if (pointersNumState == PointersNumState.PassedMinThreshold)
{
pointersNumState = PointersNumState.PassedMinMaxThreshold;
}
// this event we crossed MaxPointers
else
{
pointersNumState = PointersNumState.PassedMaxThreshold;
}
}
}
// last event we already were over MaxPointers
else
{
pointersNumState = PointersNumState.TooMany;
}
}
if (state == GestureState.Began || state == GestureState.Changed)
{
for (var i = 0; i < count; i++)
{
pointers[i].INTERNAL_Retain();
}
}
activePointers.AddRange(pointers);
numPointers = total;
pointersPressed(pointers);
}
