mirror of https://github.com/GNOME/gimp.git
100 lines
3.8 KiB
C
100 lines
3.8 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __GIMP_CURVE_H__
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#define __GIMP_CURVE_H__
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#include "gimpdata.h"
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#include "libgimpmath/gimpvector.h"
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#define GIMP_TYPE_CURVE (gimp_curve_get_type ())
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#define GIMP_CURVE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CURVE, GimpCurve))
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#define GIMP_CURVE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CURVE, GimpCurveClass))
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#define GIMP_IS_CURVE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CURVE))
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#define GIMP_IS_CURVE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CURVE))
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#define GIMP_CURVE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CURVE, GimpCurveClass))
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typedef struct _GimpCurveClass GimpCurveClass;
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struct _GimpCurve
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{
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GimpData parent_instance;
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GimpCurveType curve_type;
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gint n_points;
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GimpVector2 *points;
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gint n_samples;
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gdouble *samples;
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gboolean identity; /* whether the curve is an identiy mapping */
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};
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struct _GimpCurveClass
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{
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GimpDataClass parent_class;
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};
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GType gimp_curve_get_type (void) G_GNUC_CONST;
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GimpData * gimp_curve_new (const gchar *name);
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GimpData * gimp_curve_get_standard (void);
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void gimp_curve_reset (GimpCurve *curve,
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gboolean reset_type);
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void gimp_curve_set_curve_type (GimpCurve *curve,
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GimpCurveType curve_type);
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GimpCurveType gimp_curve_get_curve_type (GimpCurve *curve);
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gint gimp_curve_get_n_points (GimpCurve *curve);
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gint gimp_curve_get_n_samples (GimpCurve *curve);
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gint gimp_curve_get_closest_point (GimpCurve *curve,
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gdouble x);
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void gimp_curve_set_point (GimpCurve *curve,
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gint point,
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gdouble x,
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gdouble y);
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void gimp_curve_move_point (GimpCurve *curve,
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gint point,
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gdouble y);
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void gimp_curve_get_point (GimpCurve *curve,
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gint point,
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gdouble *x,
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gdouble *y);
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void gimp_curve_set_curve (GimpCurve *curve,
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gdouble x,
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gdouble y);
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gboolean gimp_curve_is_identity (GimpCurve *curve);
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void gimp_curve_get_uchar (GimpCurve *curve,
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gint n_samples,
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guchar *samples);
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#endif /* __GIMP_CURVE_H__ */
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