org.openstreetmap.josm.tools

Class ColorHelper

java.lang.Object

org.openstreetmap.josm.tools.ColorHelper

public final class ColorHelper
extends java.lang.Object

Helper to convert from color to HTML string and back.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ColorHelper()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	color2html(java.awt.Color col) Returns the HTML color code (6 or 8 digit).
static java.lang.String	color2html(java.awt.Color col, boolean withAlpha) Returns the HTML color code (6 or 8 digit).
static java.awt.Color	getForegroundColor(java.awt.Color bg) Determines the correct foreground color (black or white) to use for the given background, so the text will be readable.
static java.awt.Color	html2color(java.lang.String html) Returns the Color for the given HTML code.
private static java.lang.String	int2hex(int i)

Methods inherited from class java.lang.Object

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

Constructor Detail

ColorHelper

private ColorHelper()

Method Detail

html2color

public static java.awt.Color html2color(java.lang.String html)

Returns the Color for the given HTML code.

Parameters:

html - the color code

Returns:

the color

int2hex

private static java.lang.String int2hex(int i)

color2html

public static java.lang.String color2html(java.awt.Color col)

Returns the HTML color code (6 or 8 digit).

Parameters:

col - The color to convert

Returns:

the HTML color code (6 or 8 digit)

color2html

public static java.lang.String color2html(java.awt.Color col,
                                          boolean withAlpha)

Returns the HTML color code (6 or 8 digit).

Parameters:

col - The color to convert

withAlpha - if true and alpha value < 255, return 8-digit color code, else always 6-digit

Returns:

the HTML color code (6 or 8 digit)

Since:

6655

getForegroundColor

public static java.awt.Color getForegroundColor(java.awt.Color bg)

Determines the correct foreground color (black or white) to use for the given background, so the text will be readable.

Parameters:

bg - background color

Returns:

Color#BLACK or Color#WHITE

Since:

9223