org.geotools.filter.function.color

Class AbstractHSLFunction

Object

ExpressionAbstract

FunctionImpl

AbstractHSLFunction

All Implemented Interfaces:

Expression, Function

Direct Known Subclasses:

DarkenFunction, DesaturateFunction, LightenFunction, SaturateFunction

public abstract class AbstractHSLFunction
extends FunctionImpl

Base for lesscss.org HSL color manipulation functions

Author:

Andrea Aime - GeoSolutions

Field Summary

Fields

Modifier and Type	Field and Description
static FunctionName	NAME

Fields inherited from class FunctionImpl

functionName

Fields inherited from interface Expression

NIL

Constructor Summary

Constructors

Constructor and Description
AbstractHSLFunction(String name)

Method Summary

Modifier and Type	Method and Description
protected abstract void	adjstRelative(float amount, HSLColor hsl)
protected abstract void	adjustAbsolute(float amount, HSLColor hsl)
Object	evaluate(Object object) Default implementation simply returns the fallbackValue.

Methods inherited from class FunctionImpl

accept, dispatchArguments, equals, functionName, getFallbackValue, getFunctionName, getName, getParameters, getParameterValue, getParameterValue, hashCode, setFallbackValue, setName, setParameters, toString

Methods inherited from class ExpressionAbstract

evaluate

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Expression

evaluate

Field Detail

NAME

public static FunctionName NAME

Constructor Detail

AbstractHSLFunction

public AbstractHSLFunction(String name)

Method Detail

evaluate

public Object evaluate(Object object)

Description copied from class: FunctionImpl

Default implementation simply returns the fallbackValue.

Please override this method to produce a value based on the provided arguments.

Specified by:

evaluate in interface Expression

Overrides:

evaluate in class FunctionImpl

Parameters:

object - Object being evaluated; often a Feature

Returns:

value for the provided object

adjstRelative

protected abstract void adjstRelative(float amount,
                                      HSLColor hsl)

adjustAbsolute

protected abstract void adjustAbsolute(float amount,
                                       HSLColor hsl)