Adobe® Flex® 4 Language Reference
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mx.utils 
ColorUtil 
Packagemx.utils
Classpublic class ColorUtil
InheritanceColorUtil Inheritance Object

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

The ColorUtil class is an all-static class with methods for working with RGB colors within Flex. You do not create instances of ColorUtil; instead you simply call static methods such as the ColorUtil.adjustBrightness() method.



Public Properties
 PropertyDefined By
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
Public Methods
 MethodDefined By
  
[static] Performs a linear brightness adjustment of an RGB color.
ColorUtil
  
[static] Performs a scaled brightness adjustment of an RGB color.
ColorUtil
 Inherited
Indicates whether an object has a specified property defined.
Object
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
  
[static] Performs an RGB multiplication of two RGB colors.
ColorUtil
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
Returns the primitive value of the specified object.
Object
Method Detail

adjustBrightness

()method
public static function adjustBrightness(rgb:uint, brite:Number):uint

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Performs a linear brightness adjustment of an RGB color.

The same amount is added to the red, green, and blue channels of an RGB color. Each color channel is limited to the range 0 through 255.

Parameters

rgb:uint — Original RGB color.
 
brite:Number — Amount to be added to each color channel. The range for this parameter is -255 to 255; -255 produces black while 255 produces white. If this parameter is 0, the RGB color returned is the same as the original color.

Returns
uint — New RGB color.

adjustBrightness2

()method 
public static function adjustBrightness2(rgb:uint, brite:Number):uint

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Performs a scaled brightness adjustment of an RGB color.

Parameters

rgb:uint — Original RGB color.
 
brite:Number — The percentage to brighten or darken the original color. If positive, the original color is brightened toward white by this percentage. If negative, it is darkened toward black by this percentage. The range for this parameter is -100 to 100; -100 produces black while 100 produces white. If this parameter is 0, the RGB color returned is the same as the original color.

Returns
uint — New RGB color.

rgbMultiply

()method 
public static function rgbMultiply(rgb1:uint, rgb2:uint):uint

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Performs an RGB multiplication of two RGB colors.

This always results in a darker number than either original color unless one of them is white, in which case the other color is returned.

Parameters

rgb1:uint — First RGB color.
 
rgb2:uint — Second RGB color.

Returns
uint — RGB multiplication of the two colors.