Package apple.coregraphics.enums

Class CGBlendMode

java.lang.Object

apple.coregraphics.enums.CGBlendMode

public final class CGBlendMode
extends java.lang.Object

Blend modes. The blend modes from kCGBlendModeNormal to kCGBlendModeLuminosity are supported in Mac OS X 10.4 and later. The Porter-Duff blend modes (from kCGBlendModeClear to kCGBlendModePlusLighter) are supported in Mac OS X 10.5 and later. The names of the Porter-Duff blend modes are historical. Note that the Porter-Duff blend modes are not necessarily supported in every context. In particular, they are only guaranteed to work in bitmap-based contexts, such as those created by CGBitmapContextCreate. It is your responsibility to make sure that they do what you want when you use them in a CGContext.

Field Summary

Fields

Modifier and Type	Field	Description
static int	Clear	R = 0
static int	Color	Available in Mac OS X 10.4 & later.
static int	ColorBurn	Available in Mac OS X 10.4 & later.
static int	ColorDodge	Available in Mac OS X 10.4 & later.
static int	Copy	R = S
static int	Darken	Available in Mac OS X 10.4 & later.
static int	DestinationAtop	R = S*(1 - Da) + D*Sa
static int	DestinationIn	R = D*Sa
static int	DestinationOut	R = D*(1 - Sa)
static int	DestinationOver	R = S*(1 - Da) + D
static int	Difference	Available in Mac OS X 10.4 & later.
static int	Exclusion	Available in Mac OS X 10.4 & later.
static int	HardLight	Available in Mac OS X 10.4 & later.
static int	Hue	Available in Mac OS X 10.4 & later.
static int	Lighten	Available in Mac OS X 10.4 & later.
static int	Luminosity	Available in Mac OS X 10.4 & later.
static int	Multiply	Available in Mac OS X 10.4 & later.
static int	Normal	Available in Mac OS X 10.4 & later.
static int	Overlay	Available in Mac OS X 10.4 & later.
static int	PlusDarker	R = MAX(0, (1 - D) + (1 - S))
static int	PlusLighter	R = MIN(1, S + D)
static int	Saturation	Available in Mac OS X 10.4 & later.
static int	Screen	Available in Mac OS X 10.4 & later.
static int	SoftLight	Available in Mac OS X 10.4 & later.
static int	SourceAtop	R = S*Da + D*(1 - Sa)
static int	SourceIn	R = S*Da
static int	SourceOut	R = S*(1 - Da)
static int	XOR	R = S*(1 - Da) + D*(1 - Sa)

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

Normal

public static final int Normal

Available in Mac OS X 10.4 & later.

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Constant Field Values

Multiply

public static final int Multiply

Available in Mac OS X 10.4 & later.

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Constant Field Values

Screen

public static final int Screen

Available in Mac OS X 10.4 & later.

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Constant Field Values

Overlay

public static final int Overlay

Available in Mac OS X 10.4 & later.

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Constant Field Values

Darken

public static final int Darken

Available in Mac OS X 10.4 & later.

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Constant Field Values

Lighten

public static final int Lighten

Available in Mac OS X 10.4 & later.

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Constant Field Values

ColorDodge

public static final int ColorDodge

Available in Mac OS X 10.4 & later.

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Constant Field Values

ColorBurn

public static final int ColorBurn

Available in Mac OS X 10.4 & later.

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Constant Field Values

SoftLight

public static final int SoftLight

Available in Mac OS X 10.4 & later.

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Constant Field Values

HardLight

public static final int HardLight

Available in Mac OS X 10.4 & later.

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Constant Field Values

Difference

public static final int Difference

Available in Mac OS X 10.4 & later.

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Constant Field Values

Exclusion

public static final int Exclusion

Available in Mac OS X 10.4 & later.

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Constant Field Values

Hue

public static final int Hue

Available in Mac OS X 10.4 & later.

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Constant Field Values

Saturation

public static final int Saturation

Available in Mac OS X 10.4 & later.

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Constant Field Values

Color

public static final int Color

Available in Mac OS X 10.4 & later.

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Constant Field Values

Luminosity

public static final int Luminosity

Available in Mac OS X 10.4 & later.

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Constant Field Values

Clear

public static final int Clear

R = 0

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Constant Field Values

Copy

public static final int Copy

R = S

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Constant Field Values

SourceIn

public static final int SourceIn

R = S*Da

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Constant Field Values

SourceOut

public static final int SourceOut

R = S*(1 - Da)

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Constant Field Values

SourceAtop

public static final int SourceAtop

R = S*Da + D*(1 - Sa)

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Constant Field Values

DestinationOver

public static final int DestinationOver

R = S*(1 - Da) + D

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Constant Field Values

DestinationIn

public static final int DestinationIn

R = D*Sa

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Constant Field Values

DestinationOut

public static final int DestinationOut

R = D*(1 - Sa)

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Constant Field Values

DestinationAtop

public static final int DestinationAtop

R = S*(1 - Da) + D*Sa

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Constant Field Values

XOR

public static final int XOR

R = S*(1 - Da) + D*(1 - Sa)

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Constant Field Values

PlusDarker

public static final int PlusDarker

R = MAX(0, (1 - D) + (1 - S))

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Constant Field Values

PlusLighter

public static final int PlusLighter

R = MIN(1, S + D)

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Constant Field Values