org.jhotdraw.color
Class ColorUtil

java.lang.Object
  org.jhotdraw.color.ColorUtil

public class ColorUtil
extends java.lang.Object

A utility class for Color and ColorSpace objects.

Version:

$Id: ColorUtil.java 650 2010-05-26 18:15:37Z rawcoder $

Author:

Werner Randelshofer

Method Summary

static float[]	fromColor(java.awt.color.ColorSpace colorSpace, java.awt.Color c) Returns the color components in the specified color space from a Color object.
static float[]	fromRGB(java.awt.color.ColorSpace colorSpace, int rgb) Returns the color components in the specified color space from an rgb value.
static float[]	fromRGB(java.awt.color.ColorSpace colorSpace, int r, int g, int b) Returns the color components in the specified color space from RGB values.
static java.lang.String	getName(java.awt.color.ColorSpace a) Returns the name of the color space.
static boolean	isEqual(java.awt.color.ColorSpace a, java.awt.color.ColorSpace b) Returns true, if the two color spaces are equal.
static java.awt.Color	shadow(java.awt.Color c, int amount) Blackens the specified color by casting a black shadow of the specified amount on the color.
static java.awt.Color	toColor(java.awt.color.ColorSpace colorSpace, float... components) Returns a color object from color components in the specified color space.
static int	toRGB(java.awt.color.ColorSpace colorSpace, float... components) Returns an rgb value from color components in the specified color space.
static java.lang.String	toToolTipText(java.awt.Color c) Returns a tool tip text for the specified color with information in the color space of the color.

Methods inherited from class java.lang.Object

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

Method Detail

fromColor

public static float[] fromColor(java.awt.color.ColorSpace colorSpace,
                                java.awt.Color c)

Returns the color components in the specified color space from a Color object.

toColor

public static java.awt.Color toColor(java.awt.color.ColorSpace colorSpace,
                                     float... components)

Returns a color object from color components in the specified color space.

fromRGB

public static float[] fromRGB(java.awt.color.ColorSpace colorSpace,
                              int rgb)

Returns the color components in the specified color space from an rgb value.

fromRGB

public static float[] fromRGB(java.awt.color.ColorSpace colorSpace,
                              int r,
                              int g,
                              int b)

Returns the color components in the specified color space from RGB values.

toRGB

public static int toRGB(java.awt.color.ColorSpace colorSpace,
                        float... components)

Returns an rgb value from color components in the specified color space.

toToolTipText

public static java.lang.String toToolTipText(java.awt.Color c)

Returns a tool tip text for the specified color with information in the color space of the color.

isEqual

public static boolean isEqual(java.awt.color.ColorSpace a,
                              java.awt.color.ColorSpace b)

Returns true, if the two color spaces are equal.

getName

public static java.lang.String getName(java.awt.color.ColorSpace a)

Returns the name of the color space. If the color space is an ICC_ColorSpace the name is retrieved from the "desc" data element of the color profile.

Parameters:

a - A ColorSpace.

Returns:

The name.

shadow

public static java.awt.Color shadow(java.awt.Color c,
                                    int amount)

Blackens the specified color by casting a black shadow of the specified amount on the color.