ej.microvg

Enum BlendMode

java.lang.Object

java.lang.Enum<BlendMode>

ej.microvg.BlendMode

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<BlendMode>

public enum BlendMode
extends java.lang.Enum<BlendMode>

Enum for the ways a path is blend.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DST_OVER The source pixels are drawn behind the destination pixels.
SRC The source pixels replace the destination pixels.
SRC_IN Keeps the source pixels that cover the destination pixels, discards the remaining source and destination pixels.
SRC_OVER The source pixels are drawn over the destination pixels.

Method Summary

Modifier and Type	Method and Description
static BlendMode	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static BlendMode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

SRC

public static final BlendMode SRC

The source pixels replace the destination pixels.

\(\alpha_{out} = \alpha_{src}\)

\(C_{out} = C_{src}\)

SRC_OVER

public static final BlendMode SRC_OVER

The source pixels are drawn over the destination pixels.

\(\alpha_{out} = \alpha_{src} + (1 - \alpha_{src}) * \alpha_{dst}\)

\(C_{out} = C_{src} + (1 - \alpha_{src}) * C_{dst}\)

DST_OVER

public static final BlendMode DST_OVER

The source pixels are drawn behind the destination pixels.

\(\alpha_{out} = \alpha_{dst} + (1 - \alpha_{dst}) * \alpha_{src}\)

\(C_{out} = C_{dst} + (1 - \alpha_{dst}) * C_{src}\)

SRC_IN

public static final BlendMode SRC_IN

Keeps the source pixels that cover the destination pixels, discards the remaining source and destination pixels.

\(\alpha_{out} = \alpha_{src} * \alpha_{dst}\)

\(C_{out} = C_{src} * \alpha_{dst}\)

Method Detail

values

public static BlendMode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (BlendMode c : BlendMode.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static BlendMode valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null