DEFINITION MODULE FOR "C" GskTransform ;

(*
   m2-GTK4 - GskTransform: an immutable 2D/3D transformation matrix.
   Mapped onto <gsk/gsktransform.h>.
*)

FROM SYSTEM IMPORT ADDRESS;

EXPORT UNQUALIFIED
   GskTransform,
   gsk_transform_new,
   gsk_transform_equal,
   gsk_transform_get_category,
   gsk_transform_invert,
   gsk_transform_matrix,
   gsk_transform_perspective,
   gsk_transform_print,
   gsk_transform_ref,
   gsk_transform_rotate,
   gsk_transform_rotate_3d,
   gsk_transform_scale,
   gsk_transform_scale_3d,
   gsk_transform_skew,
   gsk_transform_to_2d,
   gsk_transform_to_2d_components,
   gsk_transform_to_affine,
   gsk_transform_to_matrix,
   gsk_transform_to_string,
   gsk_transform_to_translate,
   gsk_transform_transform,
   gsk_transform_transform_bounds,
   gsk_transform_transform_point,
   gsk_transform_translate,
   gsk_transform_translate_3d,
   gsk_transform_unref,
   gsk_transform_parse;

TYPE
   GskTransform = ADDRESS;

(* GskTransform *gsk_transform_new(void) *)
PROCEDURE gsk_transform_new () : ADDRESS;

(* gboolean gsk_transform_equal(GskTransform *first, GskTransform *second) *)
PROCEDURE gsk_transform_equal (first: GskTransform; second: GskTransform) : INTEGER;

(* GskTransformCategory gsk_transform_get_category(GskTransform *self) *)
PROCEDURE gsk_transform_get_category (self: GskTransform) : CARDINAL;

(* GskTransform *gsk_transform_invert(GskTransform *self) *)
PROCEDURE gsk_transform_invert (self: GskTransform) : ADDRESS;

(* GskTransform *gsk_transform_matrix(GskTransform *next, const graphene_matrix_t *matrix) *)
PROCEDURE gsk_transform_matrix (next: GskTransform; matrix: ADDRESS) : ADDRESS;

(* GskTransform *gsk_transform_perspective(GskTransform *next, float depth) *)
PROCEDURE gsk_transform_perspective (next: GskTransform; depth: SHORTREAL) : ADDRESS;

(* void gsk_transform_print(GskTransform *self, GString *string) *)
PROCEDURE gsk_transform_print (self: GskTransform; string: ADDRESS);

(* GskTransform *gsk_transform_ref(GskTransform *self) *)
PROCEDURE gsk_transform_ref (self: GskTransform) : ADDRESS;

(* GskTransform *gsk_transform_rotate(GskTransform *next, float angle) *)
PROCEDURE gsk_transform_rotate (next: GskTransform; angle: SHORTREAL) : ADDRESS;

(* GskTransform *gsk_transform_rotate_3d(GskTransform *next, float angle, const graphene_vec3_t *axis) *)
PROCEDURE gsk_transform_rotate_3d (next: GskTransform; angle: SHORTREAL; axis: ADDRESS) : ADDRESS;

(* GskTransform *gsk_transform_scale(GskTransform *next, float factor_x, float factor_y) *)
PROCEDURE gsk_transform_scale (next: GskTransform; factor_x: SHORTREAL; factor_y: SHORTREAL) : ADDRESS;

(* GskTransform *gsk_transform_scale_3d(GskTransform *next, float factor_x, float factor_y, float factor_z) *)
PROCEDURE gsk_transform_scale_3d (next: GskTransform; factor_x: SHORTREAL; factor_y: SHORTREAL; factor_z: SHORTREAL) : ADDRESS;

(* GskTransform *gsk_transform_skew(GskTransform *next, float skew_x, float skew_y) *)
PROCEDURE gsk_transform_skew (next: GskTransform; skew_x: SHORTREAL; skew_y: SHORTREAL) : ADDRESS;

(* void gsk_transform_to_2d(GskTransform *self, float *out_xx, float *out_yx, float *out_xy, float *out_yy, float *out_dx, float *out_dy) *)
PROCEDURE gsk_transform_to_2d (self: GskTransform; VAR out_xx: SHORTREAL; VAR out_yx: SHORTREAL; VAR out_xy: SHORTREAL; VAR out_yy: SHORTREAL; VAR out_dx: SHORTREAL; VAR out_dy: SHORTREAL);

(* void gsk_transform_to_2d_components(GskTransform *self, float *out_skew_x, float *out_skew_y, float *out_scale_x, float *out_scale_y, float *out_angle, float *out_dx, float *out_dy) *)
PROCEDURE gsk_transform_to_2d_components (self: GskTransform; VAR out_skew_x: SHORTREAL; VAR out_skew_y: SHORTREAL; VAR out_scale_x: SHORTREAL; VAR out_scale_y: SHORTREAL; VAR out_angle: SHORTREAL; VAR out_dx: SHORTREAL; VAR out_dy: SHORTREAL);

(* void gsk_transform_to_affine(GskTransform *self, float *out_scale_x, float *out_scale_y, float *out_dx, float *out_dy) *)
PROCEDURE gsk_transform_to_affine (self: GskTransform; VAR out_scale_x: SHORTREAL; VAR out_scale_y: SHORTREAL; VAR out_dx: SHORTREAL; VAR out_dy: SHORTREAL);

(* void gsk_transform_to_matrix(GskTransform *self, graphene_matrix_t *out_matrix) *)
PROCEDURE gsk_transform_to_matrix (self: GskTransform; out_matrix: ADDRESS);

(* char *gsk_transform_to_string(GskTransform *self) *)
PROCEDURE gsk_transform_to_string (self: GskTransform) : ADDRESS;

(* void gsk_transform_to_translate(GskTransform *self, float *out_dx, float *out_dy) *)
PROCEDURE gsk_transform_to_translate (self: GskTransform; VAR out_dx: SHORTREAL; VAR out_dy: SHORTREAL);

(* GskTransform *gsk_transform_transform(GskTransform *next, GskTransform *other) *)
PROCEDURE gsk_transform_transform (next: GskTransform; other: GskTransform) : ADDRESS;

(* void gsk_transform_transform_bounds(GskTransform *self, const graphene_rect_t *rect, graphene_rect_t *out_rect) *)
PROCEDURE gsk_transform_transform_bounds (self: GskTransform; rect: ADDRESS; out_rect: ADDRESS);

(* void gsk_transform_transform_point(GskTransform *self, const graphene_point_t *point, graphene_point_t *out_point) *)
PROCEDURE gsk_transform_transform_point (self: GskTransform; point: ADDRESS; out_point: ADDRESS);

(* GskTransform *gsk_transform_translate(GskTransform *next, const graphene_point_t *point) *)
PROCEDURE gsk_transform_translate (next: GskTransform; point: ADDRESS) : ADDRESS;

(* GskTransform *gsk_transform_translate_3d(GskTransform *next, const graphene_point3d_t *point) *)
PROCEDURE gsk_transform_translate_3d (next: GskTransform; point: ADDRESS) : ADDRESS;

(* void gsk_transform_unref(GskTransform *self) *)
PROCEDURE gsk_transform_unref (self: GskTransform);

(* gboolean gsk_transform_parse(const char *string, GskTransform **out_transform) *)
PROCEDURE gsk_transform_parse (string: ARRAY OF CHAR; out_transform: GskTransform) : INTEGER;

END GskTransform.