/// <summary>
/// <see cref="ISingleTouchObserver.OnTouchEnded" />
/// </summary>
public void OnTouchEnded(Touch touch)
{
if (Touches.Contains(touch))
{
if (Surface != null && Tool != null)
{
Tool.OnTouchEnded(Surface, touch);
}
}
Touches.Remove(touch);
if (Touches.Count == 0 && DrawingEnded != null)
{
DrawingEnded(this);
}
}
/// <summary>
/// <see cref="ISingleTouchObserver.OnTouchMoved" />
/// </summary>
public void OnTouchMoved(Touch touch)
{
if (Touches.Contains(touch))
{
if (Surface != null && Tool != null)
{
Tool.OnTouchMoved(Surface, touch);
}
}
else if (IsAllowedToDrawWithTouch == null || IsAllowedToDrawWithTouch(touch))
{
if (Surface != null && Tool != null)
{
Touches.Add(touch);
if (Touches.Count == 1 && DrawingBegan != null)
{
DrawingBegan(this);
}
Tool.OnTouchBegan(Surface, touch);
}
}
}
