com.octo.captcha.component.image.color
Class RandomRangeColorGenerator

java.lang.Object
  com.octo.captcha.component.image.color.RandomRangeColorGenerator

All Implemented Interfaces:

ColorGenerator

public class RandomRangeColorGenerator
extends java.lang.Object
implements ColorGenerator

A RandomRangeColorGenerator returns a random color whose components (red, green, blue and alpha) have been picked from user defined ranges.

Author:

Benoit Doumas, Christian Blavier

Field Summary

static int	MAX_COLOR_COMPONENT_VALUE Maximal RGB color value
static int	MIN_COLOR_COMPONENT_VALUE Minimal RGB color value
static int	OPAQUE_ALPHA_COMPONENT_VALUE Opaque alpha value
static int	TRANSPARENT_ALPHA_COMPONENT_VALUE Transparent alpha value

Constructor Summary

RandomRangeColorGenerator(int[] redComponentRange, int[] greenComponentRange, int[] blueComponentRange)
Constructs a randomColorGenerator with no alpha

RandomRangeColorGenerator(int[] redComponentRange, int[] greenComponentRange, int[] blueComponentRange, int[] alphaComponentRange)
Constructs a randomRangeColorGenerator with all components

Method Summary

java.awt.Color

getNextColor() This return a new color, from a finite set.

Methods inherited from class java.lang.Object

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

Field Detail

MIN_COLOR_COMPONENT_VALUE

public static final int MIN_COLOR_COMPONENT_VALUE

Minimal RGB color value

See Also:

Constant Field Values

MAX_COLOR_COMPONENT_VALUE

public static final int MAX_COLOR_COMPONENT_VALUE

Maximal RGB color value

See Also:

Constant Field Values

TRANSPARENT_ALPHA_COMPONENT_VALUE

public static final int TRANSPARENT_ALPHA_COMPONENT_VALUE

Transparent alpha value

See Also:

Constant Field Values

OPAQUE_ALPHA_COMPONENT_VALUE

public static final int OPAQUE_ALPHA_COMPONENT_VALUE

Opaque alpha value

See Also:

Constant Field Values

Constructor Detail

RandomRangeColorGenerator

public RandomRangeColorGenerator(int[] redComponentRange,
                                 int[] greenComponentRange,
                                 int[] blueComponentRange,
                                 int[] alphaComponentRange)

Constructs a randomRangeColorGenerator with all components

RandomRangeColorGenerator

public RandomRangeColorGenerator(int[] redComponentRange,
                                 int[] greenComponentRange,
                                 int[] blueComponentRange)

Constructs a randomColorGenerator with no alpha

Method Detail

getNextColor

public java.awt.Color getNextColor()

Description copied from interface: ColorGenerator

This return a new color, from a finite set.

Specified by:

getNextColor in interface ColorGenerator

Returns:

the next color

See Also:

ColorGenerator.getNextColor()