public virtual void OnDrag(Canvas canvas, float dxSum, float dySum, float dx, float dy, bool isShiftKey, bool isCtrlKey)
{
if (HittedResizeHandle != null)
{
HittedResizeHandle.OnDrag(canvas, dxSum, dySum, dx, dy, isShiftKey, isCtrlKey);
}
else
{
var isSnapped = false;
Point delta = null;
foreach (var policy in canvas.GetSnapPolicies())
{
Point snapPoint;
isSnapped = policy.Snap(canvas, Position, dx, dy, dxSum, dySum, out snapPoint, out delta, new[] { this });
if (isSnapped)
{
break;
}
}
if (isSnapped)
{
Translate(delta.X, delta.Y);
}
else
{
Translate(dx, dy);
}
}
}
