1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcanvasitem.h
* Copyright (C) 2010 Michael Natterer <mitch@gimp.org>
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#ifndef __GIMP_CANVAS_ITEM_H__
#define __GIMP_CANVAS_ITEM_H__
#include "core/gimpobject.h"
#define GIMP_TYPE_CANVAS_ITEM (gimp_canvas_item_get_type ())
#define GIMP_CANVAS_ITEM(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CANVAS_ITEM, GimpCanvasItem))
#define GIMP_CANVAS_ITEM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CANVAS_ITEM, GimpCanvasItemClass))
#define GIMP_IS_CANVAS_ITEM(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CANVAS_ITEM))
#define GIMP_IS_CANVAS_ITEM_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CANVAS_ITEM))
#define GIMP_CANVAS_ITEM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CANVAS_ITEM, GimpCanvasItemClass))
typedef struct _GimpCanvasItemPrivate GimpCanvasItemPrivate;
typedef struct _GimpCanvasItemClass GimpCanvasItemClass;
struct _GimpCanvasItem
{
GimpObject parent_instance;
GimpCanvasItemPrivate *private;
};
struct _GimpCanvasItemClass
{
GimpObjectClass parent_class;
/* signals */
void (* update) (GimpCanvasItem *item,
cairo_region_t *region);
/* virtual functions */
void (* draw) (GimpCanvasItem *item,
cairo_t *cr);
cairo_region_t * (* get_extents) (GimpCanvasItem *item);
void (* stroke) (GimpCanvasItem *item,
cairo_t *cr);
void (* fill) (GimpCanvasItem *item,
cairo_t *cr);
gboolean (* hit) (GimpCanvasItem *item,
gdouble x,
gdouble y);
};
GType gimp_canvas_item_get_type (void) G_GNUC_CONST;
GimpDisplayShell * gimp_canvas_item_get_shell (GimpCanvasItem *item);
GimpImage * gimp_canvas_item_get_image (GimpCanvasItem *item);
GtkWidget * gimp_canvas_item_get_canvas (GimpCanvasItem *item);
void gimp_canvas_item_draw (GimpCanvasItem *item,
cairo_t *cr);
cairo_region_t * gimp_canvas_item_get_extents (GimpCanvasItem *item);
gboolean gimp_canvas_item_hit (GimpCanvasItem *item,
gdouble x,
gdouble y);
void gimp_canvas_item_set_visible (GimpCanvasItem *item,
gboolean visible);
gboolean gimp_canvas_item_get_visible (GimpCanvasItem *item);
void gimp_canvas_item_set_line_cap (GimpCanvasItem *item,
cairo_line_cap_t line_cap);
void gimp_canvas_item_set_highlight (GimpCanvasItem *item,
gboolean highlight);
gboolean gimp_canvas_item_get_highlight (GimpCanvasItem *item);
void gimp_canvas_item_begin_change (GimpCanvasItem *item);
void gimp_canvas_item_end_change (GimpCanvasItem *item);
void gimp_canvas_item_suspend_stroking (GimpCanvasItem *item);
void gimp_canvas_item_resume_stroking (GimpCanvasItem *item);
void gimp_canvas_item_suspend_filling (GimpCanvasItem *item);
void gimp_canvas_item_resume_filling (GimpCanvasItem *item);
void gimp_canvas_item_transform (GimpCanvasItem *item,
cairo_t *cr);
void gimp_canvas_item_transform_xy (GimpCanvasItem *item,
gdouble x,
gdouble y,
gint *tx,
gint *ty);
void gimp_canvas_item_transform_xy_f (GimpCanvasItem *item,
gdouble x,
gdouble y,
gdouble *tx,
gdouble *ty);
gdouble gimp_canvas_item_transform_distance
(GimpCanvasItem *item,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2);
gdouble gimp_canvas_item_transform_distance_square
(GimpCanvasItem *item,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2);
void gimp_canvas_item_untransform_viewport
(GimpCanvasItem *item,
gint *x,
gint *y,
gint *w,
gint *h);
/* protected */
void _gimp_canvas_item_update (GimpCanvasItem *item,
cairo_region_t *region);
gboolean _gimp_canvas_item_needs_update (GimpCanvasItem *item);
void _gimp_canvas_item_stroke (GimpCanvasItem *item,
cairo_t *cr);
void _gimp_canvas_item_fill (GimpCanvasItem *item,
cairo_t *cr);
#endif /* __GIMP_CANVAS_ITEM_H__ */
|
