1 /* GIMP - The GNU Image Manipulation Program
2  * Copyright (C) 1995 Spencer Kimball and Peter Mattis
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef __GIMP_LEVELS_TOOL_H__
19 #define __GIMP_LEVELS_TOOL_H__
20 
21 
22 #include "gimpfiltertool.h"
23 
24 
25 #define GIMP_TYPE_LEVELS_TOOL            (gimp_levels_tool_get_type ())
26 #define GIMP_LEVELS_TOOL(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_LEVELS_TOOL, GimpLevelsTool))
27 #define GIMP_LEVELS_TOOL_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_LEVELS_TOOL, GimpLevelsToolClass))
28 #define GIMP_IS_LEVELS_TOOL(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_LEVELS_TOOL))
29 #define GIMP_IS_LEVELS_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_LEVELS_TOOL))
30 #define GIMP_LEVELS_TOOL_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_LEVELS_TOOL, GimpLevelsToolClass))
31 
32 
33 typedef struct _GimpLevelsTool      GimpLevelsTool;
34 typedef struct _GimpLevelsToolClass GimpLevelsToolClass;
35 
36 struct _GimpLevelsTool
37 {
38   GimpFilterTool  parent_instance;
39 
40   /* dialog */
41   GimpHistogram  *histogram;
42   GimpAsync      *histogram_async;
43 
44   GtkWidget      *channel_menu;
45 
46   GtkWidget      *histogram_view;
47 
48   GtkWidget      *input_bar;
49   GtkWidget      *low_input_spinbutton;
50   GtkWidget      *high_input_spinbutton;
51   GtkWidget      *low_output_spinbutton;
52   GtkWidget      *high_output_spinbutton;
53   GtkAdjustment  *low_input;
54   GtkAdjustment  *gamma;
55   GtkAdjustment  *gamma_linear;
56   GtkAdjustment  *high_input;
57 
58   GtkWidget      *output_bar;
59 
60   /* export dialog */
61   gboolean        export_old_format;
62 };
63 
64 struct _GimpLevelsToolClass
65 {
66   GimpFilterToolClass  parent_class;
67 };
68 
69 
70 void    gimp_levels_tool_register (GimpToolRegisterCallback  callback,
71                                    gpointer                  data);
72 
73 GType   gimp_levels_tool_get_type (void) G_GNUC_CONST;
74 
75 
76 #endif  /*  __GIMP_LEVELS_TOOL_H__  */
77