protected override void OnParentMouseDown(object sender, MouseButtonEventArgs e)
{
if (e.LeftButton != MouseButtonState.Pressed)
{
return;
}
_startPoint = e.GetPosition(this);
_lastPoint = _startPoint;
if (!BlockConverter.CanConvert(PointOutBlock))
{
return;
}
_canMove = PointOutBlock != null && !BlockConverter.GetLocked(PointOutBlock);
if (_canMove)
{
StartMouseMovementTracking();
var date = AxisXConverter.ScreenToData(0);
var newDate = date.Add(StepMin);
_stepMinDistance = AxisXConverter.DataToScreen(newDate);
}
}
private bool CanScale()
{
if (PointOutBlock == null)
{
return(false);
}
return(BlockConverter.CanConvert(PointOutBlock) && !BlockConverter.GetLocked(PointOutBlock));
}