org.ginsim.common.utils

Class ColorPalette

java.lang.Object

org.ginsim.common.utils.ColorPalette

public class ColorPalette
extends Object

Some pre-defined color palettes and methods to help generating new ones or manipulating colors in general.

Author:

Duncan Berenguier

Field Summary

Fields

Modifier and Type	Field and Description
static Color[]	blueHues An array of blue hues, all the blue web colors plus the greenish blues Teal, MediumAquamarine...
static Color[]	defaultPalette
static Color[]	defaultPalette2
static Color[]	defaultPalette3
static Color[]	RAINBOW

Constructor Summary

Constructors

Constructor and Description
ColorPalette()

Method Summary

Modifier and Type	Method and Description
static Color[]	createColorPaletteByHue(int nbcolors, float h, float hrange, float b, float brange) Generate a color palette with colors in a restricted range of Hue and Brightness.
static Color[]	createColorPaletteByRange(int nbcolors)
static Color[]	createColorPaletteByRange(int nbcolors, float saturation, float brightness) Create a palette of color by varying the hue for nbcolors steps
static String	getColorCode(Color color) Convert a 8-bit Color into a CSS-like string (without the #). Exemple : Color(255,127,0) -> "FF7F00"
static Color	getColorFromCode(String code) get a Color corresponding to a given color code.
static Color	getConstrastedForegroundColor(Color backgroundColor) Return black or white to contrast with the given background
static boolean	isColorPercievedBright(Color col) Indicates if the given color is perceived bright
static int	percievedBrightness(int r, int g, int b) Return the perceived brightness of the given color

Methods inherited from class java.lang.Object

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

Field Detail

RAINBOW

public static final Color[] RAINBOW

defaultPalette

public static final Color[] defaultPalette

defaultPalette3

public static final Color[] defaultPalette3

defaultPalette2

public static final Color[] defaultPalette2

blueHues

public static final Color[] blueHues

An array of blue hues, all the blue web colors plus the greenish blues Teal, MediumAquamarine... and purplish blues Indigo, MediumPurple...

Constructor Detail

ColorPalette

public ColorPalette()

Method Detail

createColorPaletteByRange

public static Color[] createColorPaletteByRange(int nbcolors,
                                                float saturation,
                                                float brightness)

Create a palette of color by varying the hue for nbcolors steps

Parameters:

nbcolors -

saturation -

brightness -

createColorPaletteByHue

public static Color[] createColorPaletteByHue(int nbcolors,
                                              float h,
                                              float hrange,
                                              float b,
                                              float brange)

Generate a color palette with colors in a restricted range of Hue and Brightness.

Parameters:

nbcolors -

h -

hrange -

b -

brange -

Returns:

createColorPaletteByRange

public static Color[] createColorPaletteByRange(int nbcolors)

getConstrastedForegroundColor

public static Color getConstrastedForegroundColor(Color backgroundColor)

Return black or white to contrast with the given background

Parameters:

backgroundColor - the color of the background

Returns:

Color.BLACK or Color.WHITE

isColorPercievedBright

public static boolean isColorPercievedBright(Color col)

Indicates if the given color is perceived bright

Parameters:

col -

Returns:

true if the color is perceived bright

percievedBrightness

public static int percievedBrightness(int r,
                                      int g,
                                      int b)

Return the perceived brightness of the given color

Parameters:

r - red value from 0-255

g - green value from 0-255

b - blue value from 0-255

Returns:

the perceived brightness of the given color

getColorCode

public static String getColorCode(Color color)

Convert a 8-bit Color into a CSS-like string (without the #).
Exemple : Color(255,127,0) -> "FF7F00"

Parameters:

color - the color to convert.

Returns:

String a string representation.

getColorFromCode

public static Color getColorFromCode(String code)
                              throws NumberFormatException

get a Color corresponding to a given color code.

Parameters:

code - the hexadecimal color code

Returns:

the corresponding Color

Throws:

NumberFormatException