Package org.apache.pdfbox.pdmodel.graphics.blend

Class BlendMode

java.lang.Object

org.apache.pdfbox.pdmodel.graphics.blend.BlendMode

Direct Known Subclasses:

NonSeparableBlendMode, SeparableBlendMode

public abstract class BlendMode
extends Object

Blend mode.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Map<BlendMode,COSName>	BLEND_MODE_NAMES
private static final Map<COSName,BlendMode>	BLEND_MODES
static final NonSeparableBlendMode	COLOR
static final SeparableBlendMode	COLOR_BURN
static final SeparableBlendMode	COLOR_DODGE
static final SeparableBlendMode	COMPATIBLE
static final SeparableBlendMode	DARKEN
static final SeparableBlendMode	DIFFERENCE
static final SeparableBlendMode	EXCLUSION
static final SeparableBlendMode	HARD_LIGHT
static final NonSeparableBlendMode	HUE
static final SeparableBlendMode	LIGHTEN
static final NonSeparableBlendMode	LUMINOSITY
static final SeparableBlendMode	MULTIPLY
static final SeparableBlendMode	NORMAL
static final SeparableBlendMode	OVERLAY
static final NonSeparableBlendMode	SATURATION
static final SeparableBlendMode	SCREEN
static final SeparableBlendMode	SOFT_LIGHT

Constructor Summary

Constructors

Constructor	Description
BlendMode()

Method Summary

Modifier and Type	Method	Description
private static Map<COSName,BlendMode>	createBlendModeMap()
private static Map<BlendMode,COSName>	createBlendModeNamesMap()
private static int	get255Value(float val)
static COSName	getCOSName(BlendMode bm)	Determines the blend mode name from the BM object.
static BlendMode	getInstance(COSBase cosBlendMode)	Determines the blend mode from the BM entry in the COS ExtGState.
private static void	getLuminosityRGB(float[] srcValues, float[] dstValues, float[] result)
private static void	getSaturationRGB(float[] srcValues, float[] dstValues, float[] result)

Methods inherited from class java.lang.Object

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

Field Details

NORMAL

public static final SeparableBlendMode NORMAL

COMPATIBLE

public static final SeparableBlendMode COMPATIBLE

MULTIPLY

public static final SeparableBlendMode MULTIPLY

SCREEN

public static final SeparableBlendMode SCREEN

OVERLAY

public static final SeparableBlendMode OVERLAY

DARKEN

public static final SeparableBlendMode DARKEN

LIGHTEN

public static final SeparableBlendMode LIGHTEN

COLOR_DODGE

public static final SeparableBlendMode COLOR_DODGE

COLOR_BURN

public static final SeparableBlendMode COLOR_BURN

HARD_LIGHT

public static final SeparableBlendMode HARD_LIGHT

SOFT_LIGHT

public static final SeparableBlendMode SOFT_LIGHT

DIFFERENCE

public static final SeparableBlendMode DIFFERENCE

EXCLUSION

public static final SeparableBlendMode EXCLUSION

HUE

public static final NonSeparableBlendMode HUE

SATURATION

public static final NonSeparableBlendMode SATURATION

COLOR

public static final NonSeparableBlendMode COLOR

LUMINOSITY

public static final NonSeparableBlendMode LUMINOSITY

BLEND_MODES

private static final Map<COSName,BlendMode> BLEND_MODES

BLEND_MODE_NAMES

private static final Map<BlendMode,COSName> BLEND_MODE_NAMES

Constructor Details

BlendMode

BlendMode()

Method Details

getInstance

public static BlendMode getInstance(COSBase cosBlendMode)

Determines the blend mode from the BM entry in the COS ExtGState.

Parameters:

cosBlendMode - name or array

Returns:

blending mode

getCOSName

public static COSName getCOSName(BlendMode bm)

Determines the blend mode name from the BM object.

Parameters:

bm - Blend mode.

Returns:

name of blend mode.

get255Value

private static int get255Value(float val)

getSaturationRGB

private static void getSaturationRGB(float[] srcValues,
 float[] dstValues,
 float[] result)

getLuminosityRGB

private static void getLuminosityRGB(float[] srcValues,
 float[] dstValues,
 float[] result)

createBlendModeMap

private static Map<COSName,BlendMode> createBlendModeMap()

createBlendModeNamesMap

private static Map<BlendMode,COSName> createBlendModeNamesMap()