org.geotools.data.util

Class ColorConverterFactory

Object

ColorConverterFactory

All Implemented Interfaces:

ConverterFactory

public class ColorConverterFactory
extends Object
implements ConverterFactory

ConverterFactory for handling color conversions.

Supported conversions:

• "#FF0000" (String) -> Color.RED
• 0xCC0000FF (Integer) -> RED with 80% alpha
• "gray" (String) --> Color.GRAY

This code was previously part of the SLD utility class, it is being made available as part of the Converters framework to allow for broader use.

Since:

2.5

Author:

Jody Garnett (Refractions Research)

Field Summary

Fields

Modifier and Type	Field and Description
static Converter	CONVERT_COLOR_TO_STRING Converts color to hex representation.
static Converter	CONVERT_CSS_TO_COLOR Converts CSS Color Module 4 names to colors, with a fallback to the basic CONVERT_STRING converter if the provided source String is not found in the CSS_COLORS map.
static Converter	CONVERT_NUMBER_TO_COLOR Converts provided integer to color, taking care to allow rgb and rgba support.
static Converter	CONVERT_STRING Uses Color.decode(String) to convert String to Color.
static Map<String,Color>	CSS_COLORS A mapping from CSS Color Module 4 names to Color objects.
protected static DecimalFormat	FORMAT

Fields inherited from interface ConverterFactory

SAFE_CONVERSION

Constructor Summary

Constructors

Constructor and Description
ColorConverterFactory()

Method Summary

Modifier and Type	Method and Description
Converter	createConverter(Class source, Class target, Hints hints) Creates a Converter instance for converting one type of object to another.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CONVERT_STRING

public static Converter CONVERT_STRING

Uses Color.decode(String) to convert String to Color.

CONVERT_NUMBER_TO_COLOR

public static Converter CONVERT_NUMBER_TO_COLOR

Converts provided integer to color, taking care to allow rgb and rgba support.

FORMAT

protected static DecimalFormat FORMAT

CSS_COLORS

public static final Map<String,Color> CSS_COLORS

A mapping from CSS Color Module 4 names to Color objects.

See Also:

https://www.w3.org/TR/css-color-4/#named-colors for more information.

CONVERT_CSS_TO_COLOR

public static Converter CONVERT_CSS_TO_COLOR

Converts CSS Color Module 4 names to colors, with a fallback to the basic CONVERT_STRING converter if the provided source String is not found in the CSS_COLORS map.

This converter is willing to work with:

• CSS_COLORS names such as "aliceblue".
• rgb representation of the form rgb(0,0,255)
• rgba representation of the form rgba(0,0,255,255)
• Hex representation of the form #RRGGBB and #RRGGBBAA

CONVERT_COLOR_TO_STRING

public static Converter CONVERT_COLOR_TO_STRING

Converts color to hex representation.

Constructor Detail

ColorConverterFactory

public ColorConverterFactory()

Method Detail

createConverter

public Converter createConverter(Class source,
                                 Class target,
                                 Hints hints)

Description copied from interface: ConverterFactory

Creates a Converter instance for converting one type of object to another.

Specified by:

createConverter in interface ConverterFactory

Parameters:

source - The type to convert from.

target - The type to convert to.

hints - Hints used to be used while creating a converter.

Returns:

The converter, or null if one could not be found.