com.itextpdf.kernel.colors

Class DeviceGray

java.lang.Object

com.itextpdf.kernel.colors.Color

com.itextpdf.kernel.colors.DeviceGray

All Implemented Interfaces:

Serializable

public class DeviceGray
extends Color

Color space to specify shades of gray color.

See Also:

Serialized Form

Field Summary

Fields

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

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

colorSpace, colorValue

Constructor Summary

Constructors

Constructor and 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 and 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 Detail

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 Detail

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 Detail

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