diff options
Diffstat (limited to 'app/core/gimpcurve.h')
| -rw-r--r-- | app/core/gimpcurve.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/app/core/gimpcurve.h b/app/core/gimpcurve.h new file mode 100644 index 0000000..71654aa --- /dev/null +++ b/app/core/gimpcurve.h @@ -0,0 +1,124 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef __GIMP_CURVE_H__ +#define __GIMP_CURVE_H__ + + +#include "gimpdata.h" + + +#define GIMP_TYPE_CURVE (gimp_curve_get_type ()) +#define GIMP_CURVE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CURVE, GimpCurve)) +#define GIMP_CURVE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CURVE, GimpCurveClass)) +#define GIMP_IS_CURVE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CURVE)) +#define GIMP_IS_CURVE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CURVE)) +#define GIMP_CURVE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CURVE, GimpCurveClass)) + + +typedef struct _GimpCurvePoint GimpCurvePoint; +typedef struct _GimpCurveClass GimpCurveClass; + +struct _GimpCurvePoint +{ + gdouble x; + gdouble y; + + GimpCurvePointType type; +}; + +struct _GimpCurve +{ + GimpData parent_instance; + + GimpCurveType curve_type; + + gint n_points; + GimpCurvePoint *points; + + gint n_samples; + gdouble *samples; + + gboolean identity; /* whether the curve is an identity mapping */ +}; + +struct _GimpCurveClass +{ + GimpDataClass parent_class; +}; + + +GType gimp_curve_get_type (void) G_GNUC_CONST; + +GimpData * gimp_curve_new (const gchar *name); +GimpData * gimp_curve_get_standard (void); + +void gimp_curve_reset (GimpCurve *curve, + gboolean reset_type); + +void gimp_curve_set_curve_type (GimpCurve *curve, + GimpCurveType curve_type); +GimpCurveType gimp_curve_get_curve_type (GimpCurve *curve); + +gint gimp_curve_get_n_points (GimpCurve *curve); + +void gimp_curve_set_n_samples (GimpCurve *curve, + gint n_samples); +gint gimp_curve_get_n_samples (GimpCurve *curve); + +gint gimp_curve_get_point_at (GimpCurve *curve, + gdouble x); +gint gimp_curve_get_closest_point (GimpCurve *curve, + gdouble x, + gdouble y, + gdouble max_distance); + +gint gimp_curve_add_point (GimpCurve *curve, + gdouble x, + gdouble y); +void gimp_curve_delete_point (GimpCurve *curve, + gint point); +void gimp_curve_set_point (GimpCurve *curve, + gint point, + gdouble x, + gdouble y); +void gimp_curve_move_point (GimpCurve *curve, + gint point, + gdouble y); +void gimp_curve_get_point (GimpCurve *curve, + gint point, + gdouble *x, + gdouble *y); +void gimp_curve_set_point_type (GimpCurve *curve, + gint point, + GimpCurvePointType type); +GimpCurvePointType gimp_curve_get_point_type (GimpCurve *curve, + gint point); +void gimp_curve_clear_points (GimpCurve *curve); + +void gimp_curve_set_curve (GimpCurve *curve, + gdouble x, + gdouble y); + +gboolean gimp_curve_is_identity (GimpCurve *curve); + +void gimp_curve_get_uchar (GimpCurve *curve, + gint n_samples, + guchar *samples); + + +#endif /* __GIMP_CURVE_H__ */ |