Package org.gnome.gsk

Enum Class TransformCategory

java.lang.Object

java.lang.Enum<TransformCategory>

org.gnome.gsk.TransformCategory

All Implemented Interfaces:

Enumeration, Serializable, Comparable<TransformCategory>, Constable

@Generated("io.github.jwharm.JavaGI")
public enum TransformCategory
extends Enum<TransformCategory>
implements Enumeration

The categories of matrices relevant for GSK and GTK.

Note that any category includes matrices of all later categories. So if you want to for example check if a matrix is a 2D matrix, category >= GSK_TRANSFORM_CATEGORY_2D is the way to do this.

Also keep in mind that rounding errors may cause matrices to not conform to their categories. Otherwise, matrix operations done via multiplication will not worsen categories. So for the matrix multiplication C = A * B, category(C) = MIN (category(A), category(B)).

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
_2D	The matrix is a 2D matrix.
_2D_AFFINE	The matrix is a combination of 2D scale and 2D translation operations.
_2D_TRANSLATE	The matrix is a 2D translation.
_3D	The matrix is a 3D matrix.
ANY	Analyzing the matrix concluded that it does not fit in any other category.
IDENTITY	The matrix is the identity matrix.
UNKNOWN	The category of the matrix has not been determined.

Method Summary

Modifier and Type	Method	Description
static Type	getType()	Get the GType of the TransformCategory class
int	getValue()	Get the numeric value of this enum
static TransformCategory	of(int value)	Create a new TransformCategory for the provided value
static TransformCategory	valueOf(String name)	Returns the enum constant of this class with the specified name.
static TransformCategory[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

UNKNOWN

public static final TransformCategory UNKNOWN

The category of the matrix has not been determined.

ANY

public static final TransformCategory ANY

Analyzing the matrix concluded that it does not fit in any other category.

_3D

public static final TransformCategory _3D

The matrix is a 3D matrix. This means that the w column (the last column) has the values (0, 0, 0, 1).

_2D

public static final TransformCategory _2D

The matrix is a 2D matrix. This is equivalent to graphene_matrix_is_2d() returning true. In particular, this means that Cairo can deal with the matrix.

_2D_AFFINE

public static final TransformCategory _2D_AFFINE

The matrix is a combination of 2D scale and 2D translation operations. In particular, this means that any rectangle can be transformed exactly using this matrix.

_2D_TRANSLATE

public static final TransformCategory _2D_TRANSLATE

The matrix is a 2D translation.

IDENTITY

public static final TransformCategory IDENTITY

The matrix is the identity matrix.

Method Details

values

public static TransformCategory[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static TransformCategory valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null

of

public static TransformCategory of(int value)

Create a new TransformCategory for the provided value

Parameters:

value - the enum value

Returns:

the enum for the provided value

getValue

public int getValue()

Get the numeric value of this enum

Specified by:

getValue in interface Enumeration

Returns:

the enum value

getType

public static Type getType()

Get the GType of the TransformCategory class

Returns:

the GType