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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/* vim: set ts=8 sw=8 noexpandtab: */
/* The Cairo CSS Drawing Library.
* Copyright (C) 2008 Robert Staudinger
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <stdbool.h>
#include <string.h>
#include <glib.h>
#include "ccss-cairo-image.h"
#include "config.h"
#ifdef CCSS_WITH_SOUP
#include <libsoup/soup.h>
#endif
#if CCSS_WITH_RSVG
#include <librsvg/rsvg.h>
#include <librsvg/rsvg-cairo.h>
#endif
void
ccss_cairo_image_destroy (ccss_cairo_image_t *self)
{
if (self->pattern) {
cairo_pattern_destroy (self->pattern);
self->pattern = NULL;
}
g_free (self);
}
#if CCSS_WITH_RSVG
static bool
load_svg (ccss_cairo_image_t *self,
char const *uri,
char const *id)
{
RsvgHandle *handle;
GError *error;
RsvgDimensionData dimensions;
cairo_t *cr;
cairo_surface_t *surface;
cairo_status_t status;
bool ret;
error = NULL;
handle = rsvg_handle_new_from_file (uri, &error);
if (error) {
g_warning ("%s", error->message);
g_warning ("Could not load `%s'", uri);
g_error_free (error);
return false;
}
#if CCSS_WITH_SOUP
if (id) {
char *fragment;
RsvgPositionData position;
fragment = g_strdup_printf ("#%s", id);
rsvg_handle_get_dimensions_sub (handle, &dimensions, fragment);
rsvg_handle_get_position_sub (handle, &position, fragment);
self->width = dimensions.width;
self->height = dimensions.height;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
self->width, self->height);
cr = cairo_create (surface);
cairo_translate (cr, -1 * position.x, -1 * position.y);
ret = rsvg_handle_render_cairo (handle, cr);
/* ret = rsvg_handle_render_cairo_sub (handle, cr, fragment); */
status = cairo_status (cr);
if (status != CAIRO_STATUS_SUCCESS) {
g_warning ("%s", cairo_status_to_string (status));
}
g_free (fragment), fragment = NULL;
} else {
#endif
rsvg_handle_get_dimensions (handle, &dimensions);
self->width = dimensions.width;
self->height = dimensions.height;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
self->width, self->height);
cr = cairo_create (surface);
ret = rsvg_handle_render_cairo (handle, cr);
status = cairo_status (cr);
if (status != CAIRO_STATUS_SUCCESS) {
g_warning ("%s", cairo_status_to_string (status));
}
#if CCSS_WITH_SOUP
}
#endif
self->pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_reference (self->pattern);
cairo_surface_destroy (surface), surface = NULL;
cairo_destroy (cr), cr = NULL;
g_object_unref (G_OBJECT (handle)), handle = NULL;
return true;
}
#endif /* CCSS_WITH_RSVG */
static bool
load_png (ccss_cairo_image_t *self,
char const *path)
{
cairo_surface_t *surface;
cairo_status_t status;
surface = cairo_image_surface_create_from_png (path);
status = cairo_surface_status (surface);
if (status != CAIRO_STATUS_SUCCESS) {
g_warning ("%s", cairo_status_to_string (status));
cairo_surface_destroy (surface);
return false;
}
self->width = cairo_image_surface_get_width (surface);
self->height = cairo_image_surface_get_height (surface);
self->pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_reference (self->pattern);
cairo_surface_destroy (surface), surface = NULL;
return true;
}
ccss_cairo_image_t *
ccss_cairo_image_create (char const *url)
{
bool matched;
char *path;
char const *fragment;
ccss_cairo_image_t *self = g_new0 (ccss_cairo_image_t, 1);
#if CCSS_WITH_SOUP
SoupURI *uri;
g_return_val_if_fail (self && url, false);
uri = soup_uri_new (url);
g_return_val_if_fail (uri, NULL);
path = uri->path;
fragment = uri->fragment;
#else
g_return_val_if_fail (self && url, false);
path = g_filename_from_uri (url, NULL, NULL);
fragment = NULL;
#endif
matched = false;
#if CCSS_WITH_RSVG
if (!matched &&
g_str_has_suffix (path, ".svg")) {
matched = load_svg (self, path, fragment);
}
#endif
if (!matched) {
if (fragment)
g_warning ("`%s' ignoring fragment", url);
matched = load_png (self, path);
}
#if CCSS_WITH_SOUP
soup_uri_free (uri), uri = NULL;
path = NULL;
#else
g_free (path), path = NULL;
#endif
if (self->pattern) {
cairo_status_t status;
status = cairo_pattern_status (self->pattern);
if (status != CAIRO_STATUS_SUCCESS) {
g_warning (G_STRLOC " %s", cairo_status_to_string (status));
}
} else {
g_critical (G_STRLOC " Failed to create pattern.");
g_free (self);
self = NULL;
}
return self;
}
|
