CGRect AddPointsOfType(PointType type, UITouch[] touches, Line line)
{
var accumulatedRect = CGRectNull();
for (int i = 0; i < touches.Length; i++)
{
var touch = touches [i];
// The visualization displays non-`.Stylus` touches differently.
if (touch.Type != UITouchType.Stylus)
{
type |= PointType.Finger;
}
// Touches with estimated properties require updates; add this information to the `PointType`.
if (touch.EstimatedProperties != 0)
{
type |= PointType.NeedsUpdate;
}
// The last touch in a set of .Coalesced touches is the originating touch. Track it differently.
bool isLast = (i == touches.Length - 1);
if (type.HasFlag(PointType.Coalesced) && isLast)
{
type &= ~PointType.Coalesced;
type |= PointType.Standard;
}
var touchRect = line.AddPointOfType(type, touch);
accumulatedRect = accumulatedRect.UnionWith(touchRect);
CommitLine(line);
}
return(accumulatedRect);
}
CGRect AddPointsOfType (PointType type, UITouch[] touches, Line line)
{
var accumulatedRect = CGRectNull ();
for (int i = 0; i < touches.Length; i++) {
var touch = touches [i];
// The visualization displays non-`.Stylus` touches differently.
if (touch.Type != UITouchType.Stylus)
type |= PointType.Finger;
// Touches with estimated properties require updates; add this information to the `PointType`.
if (touch.EstimatedProperties != 0)
type |= PointType.NeedsUpdate;
// The last touch in a set of .Coalesced touches is the originating touch. Track it differently.
bool isLast = (i == touches.Length - 1);
if (type.HasFlag (PointType.Coalesced) && isLast) {
type &= ~PointType.Coalesced;
type |= PointType.Standard;
}
var touchRect = line.AddPointOfType (type, touch);
accumulatedRect = accumulatedRect.UnionWith (touchRect);
CommitLine (line);
}
return accumulatedRect;
}