mirror of https://github.com/GNOME/gimp.git
230 lines
12 KiB
C
230 lines
12 KiB
C
/* The GIMP -- an 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __GIMP_GRADIENT_H__
|
|
#define __GIMP_GRADIENT_H__
|
|
|
|
|
|
#include "gimpdata.h"
|
|
|
|
|
|
#define GIMP_GRADIENT_FILE_EXTENSION ".ggr"
|
|
#define GIMP_GRADIENT_SVG_FILE_EXTENSION ".svg"
|
|
|
|
#define GIMP_GRADIENT_DEFAULT_SAMPLE_SIZE 40
|
|
|
|
|
|
struct _GimpGradientSegment
|
|
{
|
|
gdouble left, middle, right;
|
|
GimpRGB left_color;
|
|
GimpRGB right_color;
|
|
GimpGradientSegmentType type; /* Segment's blending function */
|
|
GimpGradientSegmentColor color; /* Segment's coloring type */
|
|
|
|
GimpGradientSegment *prev;
|
|
GimpGradientSegment *next;
|
|
};
|
|
|
|
|
|
#define GIMP_TYPE_GRADIENT (gimp_gradient_get_type ())
|
|
#define GIMP_GRADIENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_GRADIENT, GimpGradient))
|
|
#define GIMP_GRADIENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_GRADIENT, GimpGradientClass))
|
|
#define GIMP_IS_GRADIENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_GRADIENT))
|
|
#define GIMP_IS_GRADIENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_GRADIENT))
|
|
#define GIMP_GRADIENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_GRADIENT, GimpGradientClass))
|
|
|
|
|
|
typedef struct _GimpGradientClass GimpGradientClass;
|
|
|
|
struct _GimpGradient
|
|
{
|
|
GimpData parent_instance;
|
|
|
|
GimpGradientSegment *segments;
|
|
};
|
|
|
|
struct _GimpGradientClass
|
|
{
|
|
GimpDataClass parent_class;
|
|
};
|
|
|
|
|
|
GType gimp_gradient_get_type (void) G_GNUC_CONST;
|
|
|
|
GimpData * gimp_gradient_new (const gchar *name,
|
|
gboolean stingy_memory_use);
|
|
GimpData * gimp_gradient_get_standard (void);
|
|
|
|
GimpGradientSegment * gimp_gradient_get_color_at (GimpGradient *gradient,
|
|
GimpGradientSegment *seg,
|
|
gdouble pos,
|
|
gboolean reverse,
|
|
GimpRGB *color);
|
|
GimpGradientSegment * gimp_gradient_get_segment_at (GimpGradient *grad,
|
|
gdouble pos);
|
|
|
|
|
|
/* gradient segment functions */
|
|
|
|
GimpGradientSegment * gimp_gradient_segment_new (void);
|
|
GimpGradientSegment * gimp_gradient_segment_get_last (GimpGradientSegment *seg);
|
|
GimpGradientSegment * gimp_gradient_segment_get_first (GimpGradientSegment *seg);
|
|
GimpGradientSegment * gimp_gradient_segment_get_nth (GimpGradientSegment *seg,
|
|
gint index);
|
|
|
|
void gimp_gradient_segment_free (GimpGradientSegment *seg);
|
|
void gimp_gradient_segments_free (GimpGradientSegment *seg);
|
|
|
|
void gimp_gradient_segment_split_midpoint (GimpGradient *gradient,
|
|
GimpGradientSegment *lseg,
|
|
GimpGradientSegment **newl,
|
|
GimpGradientSegment **newr);
|
|
void gimp_gradient_segment_split_uniform (GimpGradient *gradient,
|
|
GimpGradientSegment *lseg,
|
|
gint parts,
|
|
GimpGradientSegment **newl,
|
|
GimpGradientSegment **newr);
|
|
|
|
/* Colors Setting/Getting Routines */
|
|
void gimp_gradient_segment_get_left_color (GimpGradient *gradient,
|
|
GimpGradientSegment *seg,
|
|
GimpRGB *color);
|
|
|
|
void gimp_gradient_segment_set_left_color (GimpGradient *gradient,
|
|
GimpGradientSegment *seg,
|
|
const GimpRGB *color);
|
|
|
|
|
|
void gimp_gradient_segment_get_right_color (GimpGradient *gradient,
|
|
GimpGradientSegment *seg,
|
|
GimpRGB *color);
|
|
|
|
void gimp_gradient_segment_set_right_color (GimpGradient *gradient,
|
|
GimpGradientSegment *seg,
|
|
const GimpRGB *color);
|
|
|
|
/* Position Setting/Getting Routines */
|
|
/* (Setters return the position after it was set) */
|
|
gdouble gimp_gradient_segment_get_left_pos (GimpGradient *gradient,
|
|
GimpGradientSegment *seg);
|
|
gdouble gimp_gradient_segment_set_left_pos (GimpGradient *gradient,
|
|
GimpGradientSegment *seg,
|
|
gdouble pos);
|
|
|
|
gdouble gimp_gradient_segment_get_right_pos (GimpGradient *gradient,
|
|
GimpGradientSegment *seg);
|
|
gdouble gimp_gradient_segment_set_right_pos (GimpGradient *gradient,
|
|
GimpGradientSegment *seg,
|
|
gdouble pos);
|
|
|
|
gdouble gimp_gradient_segment_get_middle_pos (GimpGradient *gradient,
|
|
GimpGradientSegment *seg);
|
|
gdouble gimp_gradient_segment_set_middle_pos (GimpGradient *gradient,
|
|
GimpGradientSegment *seg,
|
|
gdouble pos);
|
|
|
|
/* Getting/Setting the Blending Function/Coloring Type */
|
|
GimpGradientSegmentType
|
|
gimp_gradient_segment_get_blending_function (GimpGradient *gradient,
|
|
GimpGradientSegment *seg);
|
|
GimpGradientSegmentColor
|
|
gimp_gradient_segment_get_coloring_type (GimpGradient *gradient,
|
|
GimpGradientSegment *seg);
|
|
|
|
/*
|
|
* If the second segment is NULL, these functions will process
|
|
* until the end of the string.
|
|
* */
|
|
void gimp_gradient_segment_range_compress (GimpGradient *gradient,
|
|
GimpGradientSegment *range_l,
|
|
GimpGradientSegment *range_r,
|
|
gdouble new_l,
|
|
gdouble new_r);
|
|
void gimp_gradient_segment_range_blend (GimpGradient *gradient,
|
|
GimpGradientSegment *lseg,
|
|
GimpGradientSegment *rseg,
|
|
const GimpRGB *rgb1,
|
|
const GimpRGB *rgb2,
|
|
gboolean blend_colors,
|
|
gboolean blend_opacity);
|
|
|
|
void gimp_gradient_segment_range_set_blending_function
|
|
(GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg,
|
|
GimpGradientSegmentType new_type);
|
|
|
|
void gimp_gradient_segment_range_set_coloring_type
|
|
(GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg,
|
|
GimpGradientSegmentColor new_color);
|
|
|
|
void gimp_gradient_segment_range_flip (GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg,
|
|
GimpGradientSegment **final_start_seg,
|
|
GimpGradientSegment **final_end_seg);
|
|
|
|
void gimp_gradient_segment_range_replicate (GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg,
|
|
gint replicate_times,
|
|
GimpGradientSegment **final_start_seg,
|
|
GimpGradientSegment **final_end_seg);
|
|
|
|
void gimp_gradient_segment_range_split_midpoint
|
|
(GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg,
|
|
GimpGradientSegment **final_start_seg,
|
|
GimpGradientSegment **final_end_seg);
|
|
|
|
void gimp_gradient_segment_range_split_uniform
|
|
(GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg,
|
|
gint parts,
|
|
GimpGradientSegment **final_start_seg,
|
|
GimpGradientSegment **final_end_seg);
|
|
|
|
void gimp_gradient_segment_range_delete (GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg,
|
|
GimpGradientSegment **final_start_seg,
|
|
GimpGradientSegment **final_end_seg);
|
|
|
|
void gimp_gradient_segment_range_recenter_handles
|
|
(GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg);
|
|
void gimp_gradient_segment_range_redistribute_handles
|
|
(GimpGradient *gradient,
|
|
GimpGradientSegment *start_seg,
|
|
GimpGradientSegment *end_seg);
|
|
|
|
gdouble gimp_gradient_segment_range_move (GimpGradient *gradient,
|
|
GimpGradientSegment *range_l,
|
|
GimpGradientSegment *range_r,
|
|
gdouble delta,
|
|
gboolean control_compress);
|
|
|
|
|
|
#endif /* __GIMP_GRADIENT_H__ */
|