java.lang.Object
- eu.webtoolkit.jwt.WColor

```
public class WColor
extends java.lang.Object
```
A class that specifies a color. A color corresponds to a CSS color. You can specify a color either using its red/green/blue components, or from a valid CSS name. The color supports an alpha channel, which determines the degree of transparency. An alpha value of 0 is completely transparent (and thus invisible), while a value of 255 is completely opaque.

Field Summary

Fields
Modifier and Type	Field	Description
`static WColor`	`black`	Black WColor object.
`static WColor`	`blue`	Blue WColor object.
`static WColor`	`cyan`	Cyan WColor object.
`static WColor`	`darkBlue`	Dark blue WColor object.
`static WColor`	`darkCyan`	Dark cyan WColor object.
`static WColor`	`darkGray`	Dark gray WColor object.
`static WColor`	`darkGreen`	Dark green WColor object.
`static WColor`	`darkMagenta`	Dark magenta WColor object.
`static WColor`	`darkRed`	Dark red WColor object.
`static WColor`	`darkYellow`	Dark yellow WColor object.
`static WColor`	`gray`	Gray WColor object.
`static WColor`	`green`	Green WColor object.
`static WColor`	`lightGray`	Light gray WColor object.
`static WColor`	`magenta`	White Magenta object.
`static WColor`	`red`	Red WColor object.
`static WColor`	`transparent`	Transparant WColor object.
`static WColor`	`white`	White WColor object.
`static WColor`	`yellow`	Yellow WColor object.

Constructor Summary

Constructors
Constructor	Description
`WColor()`	Construct a default color.
`WColor(int r, int g, int b)`	Construct a color with given red/green/blue components.
`WColor(int r, int g, int b, int a)`	Construct a color with given red/green/blue/alpha components.
`WColor(StandardColor c)`	Construct a color from a StandardColor.
`WColor(java.lang.CharSequence name)`	Construct a color from a CSS name.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(WColor other)`	Indicates whether some other object is "equal to" this one.
`static WColor`	`fromHSL(double h, double s, double l, int alpha)`
`int`	`getAlpha()`	Returns the alpha component.
`int`	`getBlue()`	Returns the blue component.
`java.lang.String`	`getCssText()`
`java.lang.String`	`getCssText(boolean withAlpha)`
`int`	`getGreen()`	Returns the green component.
`WString`	`getName()`	Get CSS name.
`int`	`getRed()`	Returns the red component.
`boolean`	`isDefault()`	Returns if the color is the default color.
`void`	`setName(java.lang.CharSequence name)`	Set the CSS name.
`void`	`setRgb(int red, int green, int blue)`	Set the red/green/blue components and a 255 for the alpha component.
`void`	`setRgb(int red, int green, int blue, int alpha)`	Set the red/green/blue/alpha components.
`void`	`toHSL(double[] hsl)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - white
```
public static WColor white
```
    White WColor object.
  - black
```
public static WColor black
```
    Black WColor object.
  - red
```
public static WColor red
```
    Red WColor object.
  - darkRed
```
public static WColor darkRed
```
    Dark red WColor object.
  - green
```
public static WColor green
```
    Green WColor object.
  - darkGreen
```
public static WColor darkGreen
```
    Dark green WColor object.
  - blue
```
public static WColor blue
```
    Blue WColor object.
  - darkBlue
```
public static WColor darkBlue
```
    Dark blue WColor object.
  - cyan
```
public static WColor cyan
```
    Cyan WColor object.
  - darkCyan
```
public static WColor darkCyan
```
    Dark cyan WColor object.
  - magenta
```
public static WColor magenta
```
    White Magenta object.
  - darkMagenta
```
public static WColor darkMagenta
```
    Dark magenta WColor object.
  - yellow
```
public static WColor yellow
```
    Yellow WColor object.
  - darkYellow
```
public static WColor darkYellow
```
    Dark yellow WColor object.
  - gray
```
public static WColor gray
```
    Gray WColor object.
  - darkGray
```
public static WColor darkGray
```
    Dark gray WColor object.
  - lightGray
```
public static WColor lightGray
```
    Light gray WColor object.
  - transparent
```
public static WColor transparent
```
    Transparant WColor object.
- Constructor Detail
  - WColor
```
public WColor()
```
    Construct a default color. The default color is depending on the context, another color (for example from a hierarchical parent in a widget tree), or a completely transparent color.
  - WColor
```
public WColor(StandardColor c)
```
    Construct a color from a StandardColor.
  - WColor
```
public WColor(int r,
              int g,
              int b,
              int a)
```
    Construct a color with given red/green/blue/alpha components. All four components must be specified with a value in the range (0 - 255). The alpha channel determines the degree of transparency. An alpha value of 0 is completely transparent (and thus invisible), while a value of 255 is completely opaque.
    
    See Also:
    
    setRgb(int red, int green, int blue, int alpha)
  - WColor
```
public WColor(int r,
              int g,
              int b)
```
    Construct a color with given red/green/blue components. All three components must be specified with a value in the range (0 - 255). The alpha channel is defaulted to completely opaque (255).
    
    See Also:
    
    setRgb(int, int, int)
  - WColor
```
public WColor(java.lang.CharSequence name)
```
    Construct a color from a CSS name. The name may be any valid CSS color name, including names colors such as "aqua", or colors defined as RGB components.
    In either case, the result of the methods getRed(), getGreen() and getBlue() is undefined.
    See also http://www.w3.org/TR/REC-CSS2/syndata.html#value-def-color
- Method Detail
  - setRgb
```
public void setRgb(int red,
                   int green,
                   int blue,
                   int alpha)
```
    Set the red/green/blue/alpha components. All four components must be specified with a value in the range (0 - 255). The alpha channel determines the degree of transparency. An alpha value of 0 is completely transparent (and thus invisible), while a value of 255 is completely opaque.
  - setRgb
```
public final void setRgb(int red,
                         int green,
                         int blue)
```
    Set the red/green/blue components and a 255 for the alpha component.
    
    See Also:
    
    setRgb(int, int, int, int)
  - setName
```
public void setName(java.lang.CharSequence name)
```
    Set the CSS name. The name may be any valid CSS color name, including names colors such as "aqua", or colors defined as RGB components.
    In either case, the result of the methods getRed(), getGreen() and getBlue() is undefined.
    See also http://www.w3.org/TR/REC-CSS2/syndata.html#value-def-color
  - isDefault
```
public boolean isDefault()
```
    Returns if the color is the default color.
    
    See Also:
    
    WColor()
  - getRed
```
public int getRed()
```
    Returns the red component. Only available when the color was specified in terms of the RGB components using setRgb(int, int, int, int) or WColor(int, int, int, int).
  - getGreen
```
public int getGreen()
```
    Returns the green component. Only available when the color was specified in terms of the RGB components using setRgb(int, int, int, int) or WColor(int, int, int, int).
  - getBlue
```
public int getBlue()
```
    Returns the blue component. Only available when the color was specified in terms of the RGB components using setRgb(int, int, int, int) or WColor(int, int, int, int).
  - getAlpha
```
public int getAlpha()
```
    Returns the alpha component. Only available when the color was specified in terms of the RGB components using setRgb(int, int, int, int) or WColor(int, int, int, int).
  - getName
```
public WString getName()
```
    Get CSS name. Only available when it was set with setName(CharSequence name) or WColor(CharSequence name).
  - equals
```
public boolean equals(WColor other)
```
    Indicates whether some other object is "equal to" this one. Returns true if the two colors were defined in exactly the same way. It may return false although they actually represent the same color.
  - getCssText
```
public final java.lang.String getCssText(boolean withAlpha)
```
  - getCssText
```
public final java.lang.String getCssText()
```
  - toHSL
```
public final void toHSL(double[] hsl)
```
  - fromHSL
```
public static WColor fromHSL(double h,
                             double s,
                             double l,
                             int alpha)
```

Class WColor

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

white

black

red

darkRed

green

darkGreen

blue

darkBlue

cyan

darkCyan

magenta

darkMagenta

yellow

darkYellow

gray

darkGray

lightGray

transparent

Constructor Detail

WColor

WColor

WColor

WColor

WColor

Method Detail

setRgb

setRgb

setName

isDefault

getRed

getGreen

getBlue

getAlpha

getName

equals

getCssText

getCssText

toHSL

fromHSL