Package com.itextpdf.kernel.colors

Class DeviceGray

java.lang.Object

com.itextpdf.kernel.colors.Color

com.itextpdf.kernel.colors.DeviceGray

 public class DeviceGray extends Color 
      

Color space to specify shades of gray color.

Field Summary

Fields

Modifier and Type	Field	Description
static final DeviceGray	BLACK	Predefined black DeviceGray color.
static final DeviceGray	GRAY	Predefined gray DeviceGray color.
static final DeviceGray	WHITE	Predefined white DeviceGray color.

Fields inherited from class com.itextpdf.kernel.colors.Color

colorSpace, colorValue

Constructor Summary

Constructors

Constructor	Description
DeviceGray()	Creates DeviceGray color with grayscale value initialised as zero.
DeviceGray(float value)	Creates DeviceGray color by given grayscale.

Method Summary

Modifier and Type	Method	Description
static DeviceGray	makeDarker(DeviceGray grayColor)	Returns DeviceGray color which is darker than given one
static DeviceGray	makeLighter(DeviceGray grayColor)	Returns DeviceGray color which is lighter than given one

Methods inherited from class com.itextpdf.kernel.colors.Color

convertCmykToRgb, convertRgbToCmyk, equals, getColorSpace, getColorValue, getNumberOfComponents, hashCode, makeColor, makeColor, setColorValue

Methods inherited from class java.lang.Object

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

Field Details

WHITE

 public static final DeviceGray WHITE 
            

Predefined white DeviceGray color.

GRAY

 public static final DeviceGray GRAY 
            

Predefined gray DeviceGray color.

BLACK

 public static final DeviceGray BLACK 
            

Predefined black DeviceGray color.

Constructor Details

DeviceGray

 public DeviceGray 
             (float value) 
            

Creates DeviceGray color by given grayscale. The grayscale is considered to be in [0, 1] interval, if not, the grayscale will be considered as 1 (when grayscale's value is bigger than 1) or 0 (when grayscale's value is less than 0).

Parameters:

value - the grayscale value

DeviceGray

 public DeviceGray() 
            

Creates DeviceGray color with grayscale value initialised as zero.

Method Details

makeLighter

 public static DeviceGray makeLighter 
             (DeviceGray grayColor) 
            

Returns DeviceGray color which is lighter than given one

Parameters:

grayColor - the DeviceGray color to be made lighter

Returns:

lighter color

makeDarker

 public static DeviceGray makeDarker 
             (DeviceGray grayColor) 
            

Returns DeviceGray color which is darker than given one

Parameters:

grayColor - the DeviceGray color to be made darker

Returns:

darker color