org.tigris.gef.util
Class ColorUtility

java.lang.Object
  org.tigris.gef.util.ColorUtility

public class ColorUtility
extends java.lang.Object

A flyweight factory class used to get color instances. This only creates new instances of a Color if required. Previous instances are cached.

Since:

0.11.1 10-May-2005

Author:

Bob Tarling

Method Summary

static java.awt.Color	getColor(java.lang.String colorDescr) A flyweight factory method for reusing the same Color value multiple times.
static java.awt.Color	getColor(java.lang.String colorDescr, java.awt.Color defaultColor) A flyweight factory method for reusing the same Color value multiple times.
static java.lang.String	getColorName(java.awt.Color color) Get a color name for a color or null if this is some custom color.
static java.lang.String	getPgmlColor(java.awt.Color color) Get the PGML description of a color.
static java.lang.String	getSvgColor(java.awt.Color color) Get the SVG description of a color.

Methods inherited from class java.lang.Object

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

Method Detail

getColor

public static java.awt.Color getColor(java.lang.String colorDescr,
                                      java.awt.Color defaultColor)

A flyweight factory method for reusing the same Color value multiple times.

Parameters:

colorDescr - A string of RGB values seperated by space or a color name recognised by PGML (later to include SVG)

defaultColor - a color to return if the color description can't be interpretted.

Returns:

the equivilent Color

getColor

public static java.awt.Color getColor(java.lang.String colorDescr)

A flyweight factory method for reusing the same Color value multiple times.

Parameters:

colorDescr - A string of RGB values seperated by space or a color name recognised by PGML (later to include SVG)

Returns:

the equivilent Color

getColorName

public static java.lang.String getColorName(java.awt.Color color)

Get a color name for a color or null if this is some custom color.

Parameters:

color -

Returns:

the color name or null.

getPgmlColor

public static java.lang.String getPgmlColor(java.awt.Color color)

Get the PGML description of a color. If possible this is a text description otherwise it is in red green blue integer format seperated by spaces.

Parameters:

color - The color to convert to PGML style

Returns:

a string representing the color in pgml format

getSvgColor

public static java.lang.String getSvgColor(java.awt.Color color)

Get the SVG description of a color. If possible this is a text description otherwise it is in hexadecimal red green blue format of either #rrggbb or #rgb.

Parameters:

color - The color to convert to SVG style

Returns:

a string representing the color in SVG format