All Known Implementing Classes:

Color, GoogleChartColor, GwtMaterialColor, HtmlColor
```
public interface IsColor
```
Defines the methods that all colors must have and many of them have got already an implementation that usually does not need to be changed.

Author:

Andrea "Stock" Stocchero

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default IsColor`	`alpha(double alpha)`	Clones the color applying the alpha value.
`default IsColor`	`brighter()`	Creates a new color that is a brighter version of this color.
`default IsColor`	`brighter(double alpha)`	Creates a new color that is a brighter version of this color.
`static String`	`checkAndGetValue(IsColor value)`	Checks a color value if consistent, returning the RGBA representation, otherwise `null`.
`static void`	`checkIfValid(IsColor color)`	Checks if the passed color is consistent, that means with a right red, green, blue and alpha values. If not consistent, an `IllegalArgumentException` will be thrown.
`default IsColor`	`darker()`	Creates a new `Color` that is a darker version of this `Color`. This method applies an arbitrary scale factor to each of the three RGB components of this `Color` to create a darker version of this `Color`. Although `brighter` and `darker` are inverse operations, the results of a series of invocations of these two methods might be inconsistent because of rounding errors.
`default IsColor`	`darker(double alpha)`	Creates a new `Color` that is a darker version of this `Color`. This method applies an arbitrary scale factor to each of the three RGB components of this `Color` to create a darker version of this `Color`. Although `brighter` and `darker` are inverse operations, the results of a series of invocations of these two methods might be inconsistent because of rounding errors.
`double`	`getAlpha()`	Returns the alpha rate.
`int`	`getBlue()`	Returns the blue value.
`int`	`getGreen()`	Returns the green value.
`int`	`getRed()`	Returns the red value.
`default IsColor`	`interpolate(IsColor endColor, double percentage)`	Returns a color from a specific offset starting from the current one.
`static boolean`	`isConsistent(IsColor color)`	Returns `true` if the passed color instance is consistent, that means with a right red, green, blue and alpha values and if the RGBA string representation is consistent as well.
`static boolean`	`isValid(IsColor color)`	Returns `true` if the passed color instance is consistent, that means with a right red, green, blue and alpha values.
`static boolean`	`isVisible(IsColor color)`	Returns `true` if the passed color instance is not transparent, with alpha greater than 0.
`default String`	`toHex()`	Returns HEX string value which represents the color.
`default String`	`toHSL()`	Returns HSL string value which represents the color.
`default String`	`toHSLA()`	Returns HSLA string value which represents the color.
`default String`	`toRGB()`	Returns RGB string value which represents the color.
`default String`	`toRGBA()`	Returns RGBA string value which represents the color.
`default int`	`toRGBs()`	As IEC 61966-2-1:1999, applies to the encoding and communication of RGB colors used in computer systems and similar applications, by defining encoding transformations for use in defined reference conditions.

- Method Detail
  - isConsistent
```
static boolean isConsistent(IsColor color)
```
    Returns true if the passed color instance is consistent, that means with a right red, green, blue and alpha values and if the RGBA string representation is consistent as well.
    
    Parameters:
    
    color - color instance to check
    
    Returns:
    
    true if the passed color instance is consistent
  - isValid
```
static boolean isValid(IsColor color)
```
    Returns true if the passed color instance is consistent, that means with a right red, green, blue and alpha values.
    
    Parameters:
    
    color - color instance to check
    
    Returns:
    
    true if the passed color instance is consistent
  - isVisible
```
static boolean isVisible(IsColor color)
```
    Returns true if the passed color instance is not transparent, with alpha greater than 0.
    
    Parameters:
    
    color - color instance to check
    
    Returns:
    
    true if the passed color instance is not transparent
  - checkIfValid
```
static void checkIfValid(IsColor color)
```
    Checks if the passed color is consistent, that means with a right red, green, blue and alpha values.
    If not consistent, an IllegalArgumentException will be thrown.
    
    Parameters:
    
    color - color instance to check
  - checkAndGetValue
```
static String checkAndGetValue(IsColor value)
```
    Checks a color value if consistent, returning the RGBA representation, otherwise null.
    
    Parameters:
    
    value - value to be set
    
    Returns:
    
    the string RGBA color representation or null if color is null
  - getRed
```
int getRed()
```
    Returns the red value.
    
    Returns:
    
    the red
  - getGreen
```
int getGreen()
```
    Returns the green value.
    
    Returns:
    
    the green
  - getBlue
```
int getBlue()
```
    Returns the blue value.
    
    Returns:
    
    the blue
  - getAlpha
```
double getAlpha()
```
    Returns the alpha rate.
    
    Returns:
    
    the alpha
  - alpha
```
default IsColor alpha(double alpha)
```
    Clones the color applying the alpha value.
    
    Parameters:
    
    alpha - the alpha to set
    
    Returns:
    
    new color with the alpha value
  - toRGBA
```
default String toRGBA()
```
    Returns RGBA string value which represents the color.
    
    Returns:
    
    RGBA string value which represents the color
  - toRGB
```
default String toRGB()
```
    Returns RGB string value which represents the color.
    
    Returns:
    
    RGB string value which represents the color
  - toHex
```
default String toHex()
```
    Returns HEX string value which represents the color.
    
    Returns:
    
    HEX string value which represents the color.
  - toHSLA
```
default String toHSLA()
```
    Returns HSLA string value which represents the color.
    
    Returns:
    
    HSLA string value which represents the color
  - toHSL
```
default String toHSL()
```
    Returns HSL string value which represents the color.
    
    Returns:
    
    HSL string value which represents the color
  - toRGBs
```
default int toRGBs()
```
    As IEC 61966-2-1:1999, applies to the encoding and communication of RGB colors used in computer systems and similar applications, by defining encoding transformations for use in defined reference conditions.
    
    byte byte byte byte | | | | | +--------+--------+--------+--------+ alpha red green blue
    Returns:
    
    a integer value which represents the RGB color
  - interpolate
```
default IsColor interpolate(IsColor endColor,
                            double percentage)
```
    Returns a color from a specific offset starting from the current one.
    
    Parameters:
    
    endColor - The end color to interpolate
    
    percentage - percentage, value between 0 1 and 1, to apply to the color interpolation
    
    Returns:
    
    a color from a specific offset starting from the current one
  - brighter
```
default IsColor brighter()
```
    Creates a new color that is a brighter version of this color.
    This method applies an arbitrary scale factor to each of the three RGB components of this color to create a brighter version of this color.
    Although brighter and darker are inverse operations, the results of a series of invocations of these two methods might be inconsistent because of rounding errors.
    
    Returns:
    
    a new color object that is a brighter version of this color with the same alpha value.
  - brighter
```
default IsColor brighter(double alpha)
```
    Creates a new color that is a brighter version of this color.
    This method applies an arbitrary scale factor to each of the three RGB components of this color to create a brighter version of this color.
    Although brighter and darker are inverse operations, the results of a series of invocations of these two methods might be inconsistent because of rounding errors.
    
    Parameters:
    
    alpha - the alpha to set
    
    Returns:
    
    a new color object that is a brighter version of this color with the passed alpha value.
  - darker
```
default IsColor darker()
```
    Creates a new Color that is a darker version of this Color.
    This method applies an arbitrary scale factor to each of the three RGB components of this Color to create a darker version of this Color.
    Although brighter and darker are inverse operations, the results of a series of invocations of these two methods might be inconsistent because of rounding errors.
    
    Returns:
    
    a new color object that is a darker version of this color with the same alpha value.
  - darker
```
default IsColor darker(double alpha)
```
    Creates a new Color that is a darker version of this Color.
    This method applies an arbitrary scale factor to each of the three RGB components of this Color to create a darker version of this Color.
    Although brighter and darker are inverse operations, the results of a series of invocations of these two methods might be inconsistent because of rounding errors.
    
    Parameters:
    
    alpha - the alpha to set
    
    Returns:
    
    a new color object that is a darker version of this color with the passed alpha value.

Interface IsColor

Method Summary

Method Detail

isConsistent

isValid

isVisible

checkIfValid

checkAndGetValue

getRed

getGreen

getBlue

getAlpha

alpha

toRGBA

toRGB

toHex

toHSLA

toHSL

toRGBs

interpolate

brighter

brighter

darker

darker