1 /* GIMP - The GNU Image Manipulation Program
2  *
3  * gimpcageconfig.h
4  * Copyright (C) 2010 Michael Muré <batolettre@gmail.com>
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
18  */
19 
20 #ifndef __GIMP_CAGE_CONFIG_H__
21 #define __GIMP_CAGE_CONFIG_H__
22 
23 
24 #include "gimpoperationsettings.h"
25 
26 
27 struct _GimpCagePoint
28 {
29   GimpVector2 src_point;
30   GimpVector2 dest_point;
31   GimpVector2 edge_normal;
32   gdouble     edge_scaling_factor;
33   gboolean    selected;
34 };
35 
36 
37 #define GIMP_TYPE_CAGE_CONFIG            (gimp_cage_config_get_type ())
38 #define GIMP_CAGE_CONFIG(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CAGE_CONFIG, GimpCageConfig))
39 #define GIMP_CAGE_CONFIG_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CAGE_CONFIG, GimpCageConfigClass))
40 #define GIMP_IS_CAGE_CONFIG(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CAGE_CONFIG))
41 #define GIMP_IS_CAGE_CONFIG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CAGE_CONFIG))
42 #define GIMP_CAGE_CONFIG_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CAGE_CONFIG, GimpCageConfigClass))
43 
44 
45 typedef struct _GimpCageConfigClass GimpCageConfigClass;
46 
47 struct _GimpCageConfig
48 {
49   GimpOperationSettings  parent_instance;
50 
51   GArray                *cage_points;
52 
53   gdouble                displacement_x;
54   gdouble                displacement_y;
55   GimpCageMode           cage_mode;  /* Cage mode, used to commit displacement */
56 };
57 
58 struct _GimpCageConfigClass
59 {
60   GimpOperationSettingsClass  parent_class;
61 };
62 
63 
64 GType           gimp_cage_config_get_type               (void) G_GNUC_CONST;
65 
66 guint           gimp_cage_config_get_n_points           (GimpCageConfig  *gcc);
67 void            gimp_cage_config_add_cage_point         (GimpCageConfig  *gcc,
68                                                          gdouble          x,
69                                                          gdouble          y);
70 void            gimp_cage_config_insert_cage_point      (GimpCageConfig  *gcc,
71                                                          gint             point_number,
72                                                          gdouble          x,
73                                                          gdouble          y);
74 void            gimp_cage_config_remove_last_cage_point (GimpCageConfig  *gcc);
75 void            gimp_cage_config_remove_cage_point      (GimpCageConfig  *gcc,
76                                                          gint             point_number);
77 void            gimp_cage_config_remove_selected_points (GimpCageConfig  *gcc);
78 GimpVector2     gimp_cage_config_get_point_coordinate   (GimpCageConfig  *gcc,
79                                                          GimpCageMode     mode,
80                                                          gint             point_number);
81 void            gimp_cage_config_add_displacement       (GimpCageConfig  *gcc,
82                                                          GimpCageMode     mode,
83                                                          gdouble          x,
84                                                          gdouble          y);
85 void            gimp_cage_config_commit_displacement    (GimpCageConfig  *gcc);
86 void            gimp_cage_config_reset_displacement     (GimpCageConfig  *gcc);
87 GeglRectangle   gimp_cage_config_get_bounding_box       (GimpCageConfig  *gcc);
88 void            gimp_cage_config_reverse_cage_if_needed (GimpCageConfig  *gcc);
89 void            gimp_cage_config_reverse_cage           (GimpCageConfig  *gcc);
90 gboolean        gimp_cage_config_point_inside           (GimpCageConfig  *gcc,
91                                                          gfloat           x,
92                                                          gfloat           y);
93 void            gimp_cage_config_select_point           (GimpCageConfig  *gcc,
94                                                          gint             point_number);
95 void            gimp_cage_config_select_area            (GimpCageConfig  *gcc,
96                                                          GimpCageMode     mode,
97                                                          GeglRectangle    area);
98 void            gimp_cage_config_select_add_area        (GimpCageConfig  *gcc,
99                                                          GimpCageMode     mode,
100                                                          GeglRectangle    area);
101 void            gimp_cage_config_toggle_point_selection (GimpCageConfig  *gcc,
102                                                          gint             point_number);
103 void            gimp_cage_config_deselect_points        (GimpCageConfig  *gcc);
104 gboolean        gimp_cage_config_point_is_selected      (GimpCageConfig  *gcc,
105                                                          gint             point_number);
106 
107 
108 #endif /* __GIMP_CAGE_CONFIG_H__ */
109