Context2d.Composite (GWT 2.7.0)

java.lang.Object
- java.lang.Enum<Context2d.Composite>
- - com.google.gwt.canvas.dom.client.Context2d.Composite

All Implemented Interfaces:

Serializable, Comparable<Context2d.Composite>

Enclosing class:

Context2d
```
public static enum Context2d.Composite
extends Enum<Context2d.Composite>
```
Enum for composite style.

See Also:

Context2d.setGlobalCompositeOperation(Composite)

Enum Constant Summary

Enum Constants
Enum Constant and Description
`COPY` A (B is ignored).
`DESTINATION_ATOP` B atop A.
`DESTINATION_IN` B in A.
`DESTINATION_OUT` B out A.
`DESTINATION_OVER` B over A.
`LIGHTER` A plus B.
`SOURCE_ATOP` A atop B.
`SOURCE_IN` A in B.
`SOURCE_OUT` A out B.
`SOURCE_OVER` A over B.
`XOR` A xor B.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`getValue()`
`static Context2d.Composite`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static Context2d.Composite[]`	`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, createValueOfMap, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf, valueOf

Methods inherited from class java.lang.Object
finalize, getClass

- Enum Constant Detail
  - COPY
```
public static final Context2d.Composite COPY
```
    A (B is ignored). Display the source image instead of the destination image.
  - DESTINATION_ATOP
```
public static final Context2d.Composite DESTINATION_ATOP
```
    B atop A. Same as source-atop but using the destination image instead of the source image and vice versa.
  - DESTINATION_IN
```
public static final Context2d.Composite DESTINATION_IN
```
    B in A. Same as source-in but using the destination image instead of the source image and vice versa.
  - DESTINATION_OUT
```
public static final Context2d.Composite DESTINATION_OUT
```
    B out A. Same as source-out but using the destination image instead of the source image and vice versa.
  - DESTINATION_OVER
```
public static final Context2d.Composite DESTINATION_OVER
```
    B over A. Same as source-over but using the destination image instead of the source image and vice versa.
  - LIGHTER
```
public static final Context2d.Composite LIGHTER
```
    A plus B. Display the sum of the source image and destination image, with color values approaching 1 as a limit.
  - SOURCE_ATOP
```
public static final Context2d.Composite SOURCE_ATOP
```
    A atop B. Display the source image wherever both images are opaque. Display the destination image wherever the destination image is opaque but the source image is transparent. Display transparency elsewhere.
  - SOURCE_IN
```
public static final Context2d.Composite SOURCE_IN
```
    A in B. Display the source image wherever both the source image and destination image are opaque. Display transparency elsewhere.
  - SOURCE_OUT
```
public static final Context2d.Composite SOURCE_OUT
```
    A out B. Display the source image wherever the source image is opaque and the destination image is transparent. Display transparency elsewhere.
  - SOURCE_OVER
```
public static final Context2d.Composite SOURCE_OVER
```
    A over B. Display the source image wherever the source image is opaque. Display the destination image elsewhere.
  - XOR
```
public static final Context2d.Composite XOR
```
    A xor B. Exclusive OR of the source image and destination image.
- Method Detail
  - values
```
public static Context2d.Composite[] 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 (Context2d.Composite c : Context2d.Composite.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static Context2d.Composite valueOf(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:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - getValue
```
public String getValue()
```

Enum Context2d.Composite

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

COPY

DESTINATION_ATOP

DESTINATION_IN

DESTINATION_OUT

DESTINATION_OVER

LIGHTER

SOURCE_ATOP

SOURCE_IN

SOURCE_OUT

SOURCE_OVER

XOR

Method Detail

values

valueOf

getValue