/usr/include/gwyddion/libdraw/gwygradient.h is in libgwyddion20-dev 2.50-2.
This file is owned by root:root, with mode 0o644.
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* $Id: gwygradient.h 20678 2017-12-18 18:26:55Z yeti-dn $
* Copyright (C) 2003 David Necas (Yeti), Petr Klapetek.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GWY_GRADIENT_H__
#define __GWY_GRADIENT_H__
#include <glib-object.h>
#include <libgwyddion/gwyresource.h>
#include <libdraw/gwyrgba.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
G_BEGIN_DECLS
#define GWY_GRADIENT_DEFAULT "Gray"
#define GWY_TYPE_GRADIENT (gwy_gradient_get_type())
#define GWY_GRADIENT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GWY_TYPE_GRADIENT, GwyGradient))
#define GWY_GRADIENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GWY_TYPE_GRADIENT, GwyGradientClass))
#define GWY_IS_GRADIENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GWY_TYPE_GRADIENT))
#define GWY_IS_GRADIENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GWY_TYPE_GRADIENT))
#define GWY_GRADIENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GWY_TYPE_GRADIENT, GwyGradientClass))
typedef struct _GwyGradient GwyGradient;
typedef struct _GwyGradientClass GwyGradientClass;
typedef struct {
gdouble x;
GwyRGBA color;
} GwyGradientPoint;
struct _GwyGradient {
GwyResource parent_instance;
GArray *points;
guchar *pixels;
gdouble double1;
gpointer reserved1;
gpointer reserved2;
gint int1;
};
struct _GwyGradientClass {
GwyResourceClass parent_class;
void (*reserved1)(void);
void (*reserved2)(void);
};
GType gwy_gradient_get_type (void) G_GNUC_CONST;
void gwy_gradient_get_color (GwyGradient *gradient,
gdouble x,
GwyRGBA *color);
const guchar* gwy_gradient_get_samples (GwyGradient *gradient,
gint *nsamples);
guchar* gwy_gradient_sample (GwyGradient *gradient,
gint nsamples,
guchar *samples);
void gwy_gradient_sample_to_pixbuf (GwyGradient *gradient,
GdkPixbuf *pixbuf);
gint gwy_gradient_get_npoints (GwyGradient *gradient);
GwyGradientPoint gwy_gradient_get_point (GwyGradient *gradient,
gint index_);
void gwy_gradient_set_point (GwyGradient *gradient,
gint index_,
const GwyGradientPoint *point);
void gwy_gradient_set_point_color (GwyGradient *gradient,
gint index_,
const GwyRGBA *color);
void gwy_gradient_insert_point (GwyGradient *gradient,
gint index_,
const GwyGradientPoint *point);
gint gwy_gradient_insert_point_sorted (GwyGradient *gradient,
const GwyGradientPoint *point);
void gwy_gradient_delete_point (GwyGradient *gradient,
gint index_);
void gwy_gradient_reset (GwyGradient *gradient);
const GwyGradientPoint* gwy_gradient_get_points (GwyGradient *gradient,
gint *npoints);
void gwy_gradient_set_points (GwyGradient *gradient,
gint npoints,
const GwyGradientPoint *points);
void gwy_gradient_set_from_samples (GwyGradient *gradient,
gint nsamples,
const guchar *samples,
gdouble threshold);
GwyInventory* gwy_gradients (void);
GwyGradient* gwy_gradients_get_gradient (const gchar *name);
G_END_DECLS
#endif /*__GWY_GRADIENT_H__*/
/* vim: set cin et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
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