gsk4/org.gtkkn.bindings.gsk/Transform

Transform

class Transform(val gskTransformPointer: <Error class: unknown class><<Error class: unknown class>>)(source)

GskTransform is an object to describe transform matrices.

Unlike graphene_matrix_t, GskTransform retains the steps in how a transform was constructed, and allows inspecting them. It is modeled after the way CSS describes transforms.

GskTransform objects are immutable and cannot be changed after creation. This means code can safely expose them as properties of objects without having to worry about others changing them.

Skipped during bindings generation

parameter out_xx: out_xx: Out parameter is not supported
parameter out_skew_x: out_skew_x: Out parameter is not supported
parameter out_scale_x: out_scale_x: Out parameter is not supported
parameter out_dx: out_dx: Out parameter is not supported
parameter out_transform: out_transform: Out parameter is not supported

Constructors

constructor()

Creates a new identity transform.

constructor(gskTransformPointer: <Error class: unknown class><<Error class: unknown class>>)

Types

object Companion

Properties

gskTransformPointer

val gskTransformPointer: <Error class: unknown class><<Error class: unknown class>>

Functions

fun equal(second: Transform? = null): Boolean

Checks two transforms for equality.

fun getCategory(): TransformCategory

Returns the category this transform belongs to.

fun invert(): Transform?

Inverts the given transform.

fun matrix(matrix: <Error class: unknown class>): Transform

Multiplies @next with the given @matrix.

fun perspective(depth: <Error class: unknown class>): Transform

Applies a perspective projection transform.

fun print(string: <Error class: unknown class>)

Converts @self into a human-readable string representation suitable for printing.

fun ref(): Transform?

Acquires a reference on the given GskTransform.

fun rotate(angle: <Error class: unknown class>): Transform?

Rotates @next @angle degrees in 2D - or in 3D-speak, around the Z axis. The rotation happens around the origin point of (0, 0).

fun rotate3d(angle: <Error class: unknown class>, axis: <Error class: unknown class>): Transform?

Rotates @next @angle degrees around @axis.

fun scale(factorX: <Error class: unknown class>, factorY: <Error class: unknown class>): Transform?

Scales @next in 2-dimensional space by the given factors.

fun scale3d(factorX: <Error class: unknown class>, factorY: <Error class: unknown class>, factorZ: <Error class: unknown class>): Transform?

Scales @next by the given factors.

fun skew(skewX: <Error class: unknown class>, skewY: <Error class: unknown class>): Transform?

Applies a skew transform.

fun toMatrix(outMatrix: <Error class: unknown class>)

Computes the actual value of @self and stores it in @out_matrix.

open override fun toString(): String

Converts a matrix into a string that is suitable for printing.

fun transform(other: Transform? = null): Transform?

Applies all the operations from @other to @next.

transformBounds

fun transformBounds(rect: <Error class: unknown class>, outRect: <Error class: unknown class>)

Transforms a graphene_rect_t using the given transform @self.

fun transformPoint(point: <Error class: unknown class>, outPoint: <Error class: unknown class>)

Transforms a graphene_point_t using the given transform @self.

fun translate(point: <Error class: unknown class>): Transform?

Translates @next in 2-dimensional space by @point.

fun translate3d(point: <Error class: unknown class>): Transform?

Translates @next by @point.

fun unref()

Releases a reference on the given GskTransform.