Transform

Object Hierarchy:

Gsk.Transform Gsk.Transform Gsk.Transform

Description:

[ CCode ( ref_function = "gsk_transform_ref" , type_id = "gsk_transform_get_type ()" , unref_function = "gsk_transform_unref" ) ]
[ Compact ]
public class Transform

Describes a 3D transform.

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.


Namespace: Gsk
Package: gtk4

Content:

Static methods:

Creation methods:

  • public Transform ()
    Creates a new identity transform.

Methods:

  • public unowned Transform? @ref ()
    Acquires a reference on the given transform.
  • public bool equal (Transform? second)
    Checks two transforms for equality.
  • public TransformCategory get_category ()
    Returns the category this transform belongs to.
  • public Transform? invert ()
    Inverts the given transform.
  • public Transform matrix (Matrix matrix)
    Multiplies this with the given matrix.
  • public Transform perspective (float depth)
    Applies a perspective projection transform.
  • public void print (StringBuilder string)
    Converts the transform into a human-readable representation.
  • public Transform? rotate (float angle)
    Rotates this by an angle around the Z axis.
  • public Transform? rotate_3d (float angle, Vec3 axis)
    Rotates this angle degrees around axis.
  • public Transform? scale (float factor_x, float factor_y)
    Scales this in 2-dimensional space by the given factors.
  • public Transform? scale_3d (float factor_x, float factor_y, float factor_z)
    Scales this by the given factors.
  • public Transform? skew (float skew_x, float skew_y)
    Applies a skew transform.
  • public void to_2d (out float out_xx, out float out_yx, out float out_xy, out float out_yy, out float out_dx, out float out_dy)
    Converts a transform to a 2D transformation matrix.
  • public void to_2d_components (out float out_skew_x, out float out_skew_y, out float out_scale_x, out float out_scale_y, out float out_angle, out float out_dx, out float out_dy)
    Converts a transform to 2D transformation factors.
  • public void to_affine (out float out_scale_x, out float out_scale_y, out float out_dx, out float out_dy)
    Converts a transform to 2D affine transformation factors.
  • public Matrix to_matrix ()
    Computes the 4x4 matrix for the transform.
  • public string to_string ()
    Converts the transform into a human-readable string.
  • public void to_translate (out float out_dx, out float out_dy)
    Converts a transform to a translation operation.
  • public Transform? transform (Transform? other)
    Applies all the operations from other to this.
  • public Rect transform_bounds (Rect rect)
    Transforms a rectangle using the given transform.
  • public Point transform_point (Point point)
    Transforms a point using the given transform.
  • public Transform? translate (Point point)
    Translates this in 2-dimensional space by point.
  • public Transform? translate_3d (Point3D point)
    Translates this by point.
  • public void unref ()
    Releases a reference on the given transform.