Transform

Object Hierarchy:

Object hierarchy for Transform

Description:

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

`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.


Namespace: Gsk
Package: gtk4

Content:

Static methods:

  • public static bool parse (string string, out Transform out_transform)
    Parses the given string into a transform and puts it in out_transform.

Creation methods:

Methods:

  • public unowned Transform @ref ()
    Acquires a reference on the given `GskTransform`.
  • 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 this into a human-readable string representation suitable for printing.
  • public Transform rotate (float angle)
    Rotates this angle degrees in 2D - or in 3D-speak, 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 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 `GskTransform` to a 2D transformation matrix.
  • public void to_affine (out float out_scale_x, out float out_scale_y, out float out_dx, out float out_dy)
    Converts a `GskTransform` to 2D affine transformation factors.
  • public Matrix to_matrix ()
    Computes the actual value of this and stores it in out_matrix.
  • public string to_string ()
    Converts a matrix into a string that is suitable for printing.
  • public void to_translate (out float out_dx, out float out_dy)
    Converts a `GskTransform` 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 `graphene_rect_t` using the given transform this.
  • public Point transform_point (Point point)
    Transforms a `graphene_point_t` using the given transform this.
  • 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 `GskTransform`.