Package org.jfree.chart

Class ChartColor

java.lang.Object

java.awt.Color

org.jfree.chart.ChartColor

All Implemented Interfaces:

Paint, Transparency, Serializable

public class ChartColor
extends Color

Class to extend the number of Colors available to the charts. This extends the java.awt.Color object and extends the number of final Colors publicly accessible.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final Color	DARK_BLUE	A dark blue color.
static final Color	DARK_CYAN	A dark cyan color.
static final Color	DARK_GREEN	A dark green color.
static final Color	DARK_MAGENTA	A dark magenta color.
static final Color	DARK_RED	A dark red color.
static final Color	DARK_YELLOW	A dark yellow color.
static final Color	LIGHT_BLUE	A light blue color.
static final Color	LIGHT_CYAN	A light cyan color.
static final Color	LIGHT_GREEN	A light green color.
static final Color	LIGHT_MAGENTA	A light magenta color.
static final Color	LIGHT_RED	A light red color.
static final Color	LIGHT_YELLOW	A light yellow color.
static final Color	VERY_DARK_BLUE	A very dark blue color.
static final Color	VERY_DARK_CYAN	A very dark cyan color.
static final Color	VERY_DARK_GREEN	A very dark green color.
static final Color	VERY_DARK_MAGENTA	A very dark magenta/purple color.
static final Color	VERY_DARK_RED	A very dark red color.
static final Color	VERY_DARK_YELLOW	A very dark yellow color.
static final Color	VERY_LIGHT_BLUE	A very light blue color.
static final Color	VERY_LIGHT_CYAN	Aa very light cyan color.
static final Color	VERY_LIGHT_GREEN	A very light green color.
static final Color	VERY_LIGHT_MAGENTA	A very light magenta color.
static final Color	VERY_LIGHT_RED	A very light red color.
static final Color	VERY_LIGHT_YELLOW	A very light yellow color.

Fields inherited from class java.awt.Color

black, BLACK, blue, BLUE, cyan, CYAN, DARK_GRAY, darkGray, gray, GRAY, green, GREEN, LIGHT_GRAY, lightGray, magenta, MAGENTA, orange, ORANGE, pink, PINK, red, RED, white, WHITE, yellow, YELLOW

Fields inherited from interface java.awt.Transparency

BITMASK, OPAQUE, TRANSLUCENT

Constructor Summary

Constructors

Constructor	Description
ChartColor(int r, int g, int b)	Creates a Color with an opaque sRGB with red, green and blue values in range 0-255.

Method Summary

Modifier and Type	Method	Description
static Color[]	createDarkerColorArray(Color[] colors)	Creates an array of darker colors to use for e.g.
static Color[]	createDefaultColorArray()	Convenience method to return an array of Color objects that represent the pre-defined colors in the Color and ChartColor objects.
static Paint[]	createDefaultPaintArray()	Convenience method to return an array of Paint objects that represent the pre-defined colors in the Color and ChartColor objects.
static Color	getContrastColor(Color color)	Returns either black or white, depending on the provided color to achieve the best contrast for e.g.

Methods inherited from class java.awt.Color

brighter, createContext, darker, decode, equals, getAlpha, getBlue, getColor, getColor, getColor, getColorComponents, getColorComponents, getColorSpace, getComponents, getComponents, getGreen, getHSBColor, getRed, getRGB, getRGBColorComponents, getRGBComponents, getTransparency, hashCode, HSBtoRGB, RGBtoHSB, toString

Methods inherited from class java.lang.Object

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

Field Details

VERY_DARK_RED

public static final Color VERY_DARK_RED

A very dark red color.

DARK_RED

public static final Color DARK_RED

A dark red color.

LIGHT_RED

public static final Color LIGHT_RED

A light red color.

VERY_LIGHT_RED

public static final Color VERY_LIGHT_RED

A very light red color.

VERY_DARK_YELLOW

public static final Color VERY_DARK_YELLOW

A very dark yellow color.

DARK_YELLOW

public static final Color DARK_YELLOW

A dark yellow color.

LIGHT_YELLOW

public static final Color LIGHT_YELLOW

A light yellow color.

VERY_LIGHT_YELLOW

public static final Color VERY_LIGHT_YELLOW

A very light yellow color.

VERY_DARK_GREEN

public static final Color VERY_DARK_GREEN

A very dark green color.

DARK_GREEN

public static final Color DARK_GREEN

A dark green color.

LIGHT_GREEN

public static final Color LIGHT_GREEN

A light green color.

VERY_LIGHT_GREEN

public static final Color VERY_LIGHT_GREEN

A very light green color.

VERY_DARK_CYAN

public static final Color VERY_DARK_CYAN

A very dark cyan color.

DARK_CYAN

public static final Color DARK_CYAN

A dark cyan color.

LIGHT_CYAN

public static final Color LIGHT_CYAN

A light cyan color.

VERY_LIGHT_CYAN

public static final Color VERY_LIGHT_CYAN

Aa very light cyan color.

VERY_DARK_BLUE

public static final Color VERY_DARK_BLUE

A very dark blue color.

DARK_BLUE

public static final Color DARK_BLUE

A dark blue color.

LIGHT_BLUE

public static final Color LIGHT_BLUE

A light blue color.

VERY_LIGHT_BLUE

public static final Color VERY_LIGHT_BLUE

A very light blue color.

VERY_DARK_MAGENTA

public static final Color VERY_DARK_MAGENTA

A very dark magenta/purple color.

DARK_MAGENTA

public static final Color DARK_MAGENTA

A dark magenta color.

LIGHT_MAGENTA

public static final Color LIGHT_MAGENTA

A light magenta color.

VERY_LIGHT_MAGENTA

public static final Color VERY_LIGHT_MAGENTA

A very light magenta color.

Constructor Details

ChartColor

public ChartColor(int r,
 int g,
 int b)

Creates a Color with an opaque sRGB with red, green and blue values in range 0-255.

Parameters:

r - the red component in range 0x00-0xFF.

g - the green component in range 0x00-0xFF.

b - the blue component in range 0x00-0xFF.

Method Details

createDefaultPaintArray

public static Paint[] createDefaultPaintArray()

Convenience method to return an array of Paint objects that represent the pre-defined colors in the Color and ChartColor objects.

Returns:

An array of objects with the Paint interface.

See Also:

• createDefaultColorArray()

createDefaultColorArray

public static Color[] createDefaultColorArray()

Convenience method to return an array of Color objects that represent the pre-defined colors in the Color and ChartColor objects.

Returns:

An array of objects with the Color interface.

createDarkerColorArray

public static Color[] createDarkerColorArray(Color[] colors)

Creates an array of darker colors to use for e.g. borders.

Parameters:

colors - original colors

Returns:

a new array containing darker instances of the original colors.

getContrastColor

public static Color getContrastColor(Color color)

Returns either black or white, depending on the provided color to achieve the best contrast for e.g. text labels.
The color is converted from RGB to YIQ and the luminance value (Y; ≈[0 .. 255]) is used to determine if color is closer to either black or white.

Parameters:

color - the color for which the contrasted color is computed

Returns:

either black or white, depending on color