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Diffstat (limited to 'libgimpmath/gimpmatrix.h')
| -rw-r--r-- | libgimpmath/gimpmatrix.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/libgimpmath/gimpmatrix.h b/libgimpmath/gimpmatrix.h new file mode 100644 index 0000000..a71a218 --- /dev/null +++ b/libgimpmath/gimpmatrix.h @@ -0,0 +1,157 @@ +/* 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__ */ |