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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpmatrix.h
* Copyright (C) 1998 Jay Cox <jaycox@gimp.org>
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#if !defined (__GIMP_MATH_H_INSIDE__) && !defined (GIMP_MATH_COMPILATION)
#error "Only <libgimpmath/gimpmath.h> can be included directly."
#endif
#ifndef __GIMP_MATRIX_H__
#define __GIMP_MATRIX_H__
G_BEGIN_DECLS
/* For information look into the C source or the html documentation */
/*****************/
/* GimpMatrix2 */
/*****************/
#define GIMP_TYPE_MATRIX2 (gimp_matrix2_get_type ())
#define GIMP_VALUE_HOLDS_MATRIX2(value) (G_TYPE_CHECK_VALUE_TYPE ((value), GIMP_TYPE_MATRIX2))
GType gimp_matrix2_get_type (void) G_GNUC_CONST;
#define GIMP_TYPE_PARAM_MATRIX2 (gimp_param_matrix2_get_type ())
#define GIMP_IS_PARAM_SPEC_MATRIX2(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), GIMP_TYPE_PARAM_MATRIX2))
GType gimp_param_matrix2_get_type (void) G_GNUC_CONST;
GParamSpec * gimp_param_spec_matrix2 (const gchar *name,
const gchar *nick,
const gchar *blurb,
const GimpMatrix2 *default_value,
GParamFlags flags);
void gimp_matrix2_identity (GimpMatrix2 *matrix);
void gimp_matrix2_mult (const GimpMatrix2 *matrix1,
GimpMatrix2 *matrix2);
gdouble gimp_matrix2_determinant (const GimpMatrix2 *matrix);
void gimp_matrix2_invert (GimpMatrix2 *matrix);
void gimp_matrix2_transform_point (const GimpMatrix2 *matrix,
gdouble x,
gdouble y,
gdouble *newx,
gdouble *newy);
/*****************/
/* GimpMatrix3 */
/*****************/
#define GIMP_TYPE_MATRIX3 (gimp_matrix3_get_type ())
#define GIMP_VALUE_HOLDS_MATRIX3(value) (G_TYPE_CHECK_VALUE_TYPE ((value), GIMP_TYPE_MATRIX3))
GType gimp_matrix3_get_type (void) G_GNUC_CONST;
#define GIMP_TYPE_PARAM_MATRIX3 (gimp_param_matrix3_get_type ())
#define GIMP_IS_PARAM_SPEC_MATRIX3(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), GIMP_TYPE_PARAM_MATRIX3))
GType gimp_param_matrix3_get_type (void) G_GNUC_CONST;
GParamSpec * gimp_param_spec_matrix3 (const gchar *name,
const gchar *nick,
const gchar *blurb,
const GimpMatrix3 *default_value,
GParamFlags flags);
void gimp_matrix3_identity (GimpMatrix3 *matrix);
void gimp_matrix3_mult (const GimpMatrix3 *matrix1,
GimpMatrix3 *matrix2);
void gimp_matrix3_translate (GimpMatrix3 *matrix,
gdouble x,
gdouble y);
void gimp_matrix3_scale (GimpMatrix3 *matrix,
gdouble x,
gdouble y);
void gimp_matrix3_rotate (GimpMatrix3 *matrix,
gdouble theta);
void gimp_matrix3_xshear (GimpMatrix3 *matrix,
gdouble amount);
void gimp_matrix3_yshear (GimpMatrix3 *matrix,
gdouble amount);
void gimp_matrix3_affine (GimpMatrix3 *matrix,
gdouble a,
gdouble b,
gdouble c,
gdouble d,
gdouble e,
gdouble f);
gdouble gimp_matrix3_determinant (const GimpMatrix3 *matrix);
void gimp_matrix3_invert (GimpMatrix3 *matrix);
gboolean gimp_matrix3_is_identity (const GimpMatrix3 *matrix);
gboolean gimp_matrix3_is_diagonal (const GimpMatrix3 *matrix);
gboolean gimp_matrix3_is_affine (const GimpMatrix3 *matrix);
gboolean gimp_matrix3_is_simple (const GimpMatrix3 *matrix);
gboolean gimp_matrix3_equal (const GimpMatrix3 *matrix1,
const GimpMatrix3 *matrix2);
void gimp_matrix3_transform_point (const GimpMatrix3 *matrix,
gdouble x,
gdouble y,
gdouble *newx,
gdouble *newy);
/*****************/
/* GimpMatrix4 */
/*****************/
void gimp_matrix4_identity (GimpMatrix4 *matrix);
void gimp_matrix4_mult (const GimpMatrix4 *matrix1,
GimpMatrix4 *matrix2);
void gimp_matrix4_to_deg (const GimpMatrix4 *matrix,
gdouble *a,
gdouble *b,
gdouble *c);
gdouble gimp_matrix4_transform_point (const GimpMatrix4 *matrix,
gdouble x,
gdouble y,
gdouble z,
gdouble *newx,
gdouble *newy,
gdouble *newz);
G_END_DECLS
#endif /* __GIMP_MATRIX_H__ */
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