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
|
/**************************************************************
cmpack_graph_view.h (C-Munipack project)
Widget which can draw a XY graph (derived from GtkWidget)
Copyright (C) 2011 David Motl, dmotl@volny.cz
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.
$Id: cmpack_image_data.h,v 1.2 2016/04/24 12:24:07 dmotl Exp $
**************************************************************/
#ifndef CMPACK_IMAGE_DATA_H
#define CMPACK_IMAGE_DATA_H
#include <gtk/gtk.h>
#include "cmpack_widgdefs.h"
G_BEGIN_DECLS
typedef struct {
GObject parent;
/* Private data */
cairo_surface_t *data;
} CmpackImageData;
typedef struct {
GObjectClass parent_class;
/* Signals */
void (*data_changed)(CmpackImageData *model);
void (*size_changed)(CmpackImageData *model);
} CmpackImageDataClass;
#define CMPACK_TYPE_IMAGE_DATA (cmpack_image_data_get_type ())
#define CMPACK_IMAGE_DATA(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CMPACK_TYPE_IMAGE_DATA, CmpackImageData))
#define CMPACK_IMAGE_DATA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CMPACK_TYPE_IMAGE_DATA, CmpackImageDataClass))
#define CMPACK_IS_IMAGE_DATA(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CMPACK_TYPE_IMAGE_DATA))
#define CMPACK_IS_IMAGE_DATA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CMPACK_TYPE_IMAGE_DATA))
#define CMPACK_IMAGE_DATA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CMPACK_TYPE_IMAGE_DATA, CmpackImageDataClass))
GType cmpack_image_data_get_type(void) G_GNUC_CONST;
/* Create new empty image data */
CmpackImageData *cmpack_image_data_new(cairo_format_t format, gint width, gint height);
/* Call this function when you have finished updating the data*/
void cmpack_image_data_changed(CmpackImageData *data);
/* Get image width in pixels */
gint cmpack_image_data_width(CmpackImageData *data);
/* Get image height in pixels */
gint cmpack_image_data_height(CmpackImageData *data);
/* Get pointer to cairo surface */
cairo_surface_t *cmpack_image_data_get_surface(CmpackImageData *data);
/* Export image into a file */
gboolean cmpack_image_data_write_to_file(CmpackImageData *data,
const gchar *filepath, const gchar *format, gint width, gint height, gint jpeg_quality);
G_END_DECLS
#endif
|
