public bool Validate(NaturalRect roi)
{
Contract.Requires <InvalidOperationException>(this.ConstraintsAreValid);
bool h_ok = Validate1D(HMax, HPositionUnit, HSizeUnit, roi.Left, roi.Width);
bool v_ok = Validate1D(VMax, VPositionUnit, VSizeUnit, roi.Top, roi.Height);
return(h_ok && v_ok);
// we should really do this properly, perhaps spitting out informative
// error messages. and definitely doing either contracts, or
// thorough unit tests with simulated and/or real hardware.
}
public NaturalRect CoerceDown(NaturalRect rect)
{
Contract.Requires <InvalidOperationException>(this.ConstraintsAreValid);
Contract.Requires <ArgumentOutOfRangeException>(rect.Left >= 0);
Contract.Requires <ArgumentOutOfRangeException>(rect.Top >= 0);
Contract.Requires <ArgumentOutOfRangeException>(rect.Width > 0);
Contract.Requires <ArgumentOutOfRangeException>(rect.Height > 0);
Contract.Requires <ArgumentOutOfRangeException>(rect.Width >= HSizeUnit);
Contract.Requires <ArgumentOutOfRangeException>(rect.Height >= VSizeUnit);
return(new NaturalRect(RoundDownLeft(rect.Left), RoundDownTop(rect.Top),
RoundDownWidth(rect.Width), RoundDownHeight(rect.Height)));
}