public void InflateByYears(int value)
{
if (value > 0)
{
/*
* steps is positive
* decrease min, increase max by the amount of steps
*/
if (Minimum.TryAddYears(-value.NotBelow((int)(Bounds.Minimum - Minimum).Years()), out DateTime dtn))
{
Minimum = dtn;
}
if (Maximum.TryAddYears(value.NotAbove((int)(Bounds.Maximum - Maximum).Years()), out DateTime dtx))
{
Maximum = dtx;
}
}
else if (value < 0)
{
/*
* steps is negative
* increase min, decrease max by the amount of steps
*/
if (Minimum.TryAddYears(-value.NotAbove((int)(Bounds.Maximum - Minimum).Years()), out DateTime dtn))
{
Minimum = dtn;
}
if (Maximum.TryAddYears(value.NotBelow((int)(Bounds.Minimum - Maximum).Years()), out DateTime dtx))
{
Maximum = dtx;
}
}
}
public void ShiftByYears(int value)
{
if (value > 0)
{
/*
* steps is positive
* increase min, max by the amount of steps only
* if they will be less than or equal bounds max
*/
if (Minimum.TryAddYears(value.NotAbove((int)(Bounds.Maximum - Minimum).Years()), out DateTime dtn))
{
Minimum = dtn;
}
if (Maximum.TryAddYears(value.NotAbove((int)(Bounds.Minimum - Maximum).Years()), out DateTime dtx))
{
Maximum = dtx;
}
}
else if (value < 0)
{
/*
* steps is negative
* decrease min, max by the amount of steps only
* if they will be greater than or equal bounds min
*/
// This is not a mistake, I'll actually add a negative to a negative
if (Minimum.TryAddYears(value.NotBelow((int)(Bounds.Minimum - Minimum).Years()), out DateTime dtn))
{
Minimum = dtn;
}
if (Maximum.TryAddYears(value.NotBelow((int)(Bounds.Minimum - Maximum).Years()), out DateTime dtx))
{
Maximum = dtx;
}
}
}