protected bool ConstraintIsFixedType(RectConstraintType type)
{
return
(type == RectConstraintType.FixedGroupLength ||
type == RectConstraintType.FixedElementLength ||
type == RectConstraintType.FixedPadding
);
}
void MakeSureEachConstraintsAreProperlySet(
RectConstraintType constraintType,
FixedRectValueType fixedRectConstraintValueType,
RectTransform referenceRect
)
{
if (
constraintType == RectConstraintType.FixedGroupLength ||
constraintType == RectConstraintType.FixedElementLength ||
constraintType == RectConstraintType.FixedPadding
)
{
if (fixedRectConstraintValueType == FixedRectValueType.ReferenceRect)
{
if (referenceRect == null)
{
throw new System.InvalidOperationException(
"Reference rectTransform must be set"
);
}
}
}
}
IRectConstraint CreateRectConstraint(
RectConstraintType constraintType,
FixedRectValueType fixedValueType,
RectTransform referenceRect,
Vector2 constraintValue
)
{
IRectConstraint rectConstraint;
if (ConstraintIsFixedType(constraintType))
{
IFixedRectConstraintValueData fixedConstraintValueData = CreateFixedConstraintValueData(
fixedValueType,
referenceRect,
constraintValue
);
switch (constraintType)
{
case RectConstraintType.FixedGroupLength:
rectConstraint = new FixedGroupLengthConstraint(
fixedConstraintValueData
);
break;
case RectConstraintType.FixedElementLength:
rectConstraint = new FixedElementLengthConstraint(
fixedConstraintValueData
);
break;
case RectConstraintType.FixedPadding:
rectConstraint = new FixedPaddingConstraint(
fixedConstraintValueData
);
break;
default:
throw new System.InvalidOperationException(
"fixed constraint must be one of the three"
);
}
}
else // first constraint is ratio
{
switch (constraintType)
{
case RectConstraintType.GroupToElementRatio:
rectConstraint = new GroupToElementRatioRectConstraint(
constraintValue
);
break;
case RectConstraintType.ElementToPaddingRatio:
rectConstraint = new ElementToPaddingRatioRectConstraint(
constraintValue
);
break;
case RectConstraintType.GroupToPaddingRatio:
rectConstraint = new GroupToPaddingRatioRectConstraint(
constraintValue
);
break;
default:
throw new System.InvalidOperationException(
"ratio constraint must be one of three"
);
}
}
return(rectConstraint);
}