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
|
/* Copyright (C) 2001-2023 Artifex Software, Inc.
All Rights Reserved.
This software is provided AS-IS with no warranty, either express or
implied.
This software is distributed under license and may not be copied,
modified or distributed except as expressly authorized under the terms
of the license contained in the file LICENSE in this distribution.
Refer to licensing information at http://www.artifex.com or contact
Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
CA 94129, USA, for further information.
*/
/* XPS interpreter - common parse functions */
#include "ghostxps.h"
xps_item_t *
xps_lookup_alternate_content(xps_item_t *node)
{
for (node = xps_down(node); node; node = xps_next(node))
{
if (xps_tag(node))
{
if (!strcmp(xps_tag(node), "Choice"))
{
const char *req = xps_att(node, "Requires");
if (req && !strcmp(req, "xps"))
return xps_down(node);
}
if (!strcmp(xps_tag(node), "Fallback"))
return xps_down(node);
}
}
return NULL;
}
int
xps_parse_brush(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *node)
{
if (!strcmp(xps_tag(node), "SolidColorBrush"))
return xps_parse_solid_color_brush(ctx, base_uri, dict, node);
if (!strcmp(xps_tag(node), "ImageBrush"))
{
int code = xps_parse_image_brush(ctx, base_uri, dict, node);
if (code)
gs_catch(code, "ignoring error in image brush");
return gs_okay;
}
if (!strcmp(xps_tag(node), "VisualBrush"))
return xps_parse_visual_brush(ctx, base_uri, dict, node);
if (!strcmp(xps_tag(node), "LinearGradientBrush"))
return xps_parse_linear_gradient_brush(ctx, base_uri, dict, node);
if (!strcmp(xps_tag(node), "RadialGradientBrush"))
return xps_parse_radial_gradient_brush(ctx, base_uri, dict, node);
return gs_throw1(-1, "unknown brush tag: %s", xps_tag(node));
}
int
xps_parse_element(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *node)
{
if (!strcmp(xps_tag(node), "Path"))
return xps_parse_path(ctx, base_uri, dict, node);
if (!strcmp(xps_tag(node), "Glyphs"))
return xps_parse_glyphs(ctx, base_uri, dict, node);
if (!strcmp(xps_tag(node), "Canvas"))
return xps_parse_canvas(ctx, base_uri, dict, node);
if (!strcmp(xps_tag(node), "AlternateContent"))
{
node = xps_lookup_alternate_content(node);
if (node)
xps_parse_element(ctx, base_uri, dict, node);
}
/* skip unknown tags (like Foo.Resources and similar) */
return 0;
}
void
xps_parse_render_transform(xps_context_t *ctx, char *transform, gs_matrix *matrix)
{
float args[6];
char *s = transform;
int i;
args[0] = 1.0; args[1] = 0.0;
args[2] = 0.0; args[3] = 1.0;
args[4] = 0.0; args[5] = 0.0;
for (i = 0; i < 6 && *s; i++)
{
args[i] = atof(s);
while (*s && *s != ',')
s++;
if (*s == ',')
s++;
}
matrix->xx = args[0]; matrix->xy = args[1];
matrix->yx = args[2]; matrix->yy = args[3];
matrix->tx = args[4]; matrix->ty = args[5];
}
void
xps_parse_matrix_transform(xps_context_t *ctx, xps_item_t *root, gs_matrix *matrix)
{
char *transform;
gs_make_identity(matrix);
if (!strcmp(xps_tag(root), "MatrixTransform"))
{
transform = xps_att(root, "Matrix");
if (transform)
xps_parse_render_transform(ctx, transform, matrix);
}
}
void
xps_parse_rectangle(xps_context_t *ctx, char *text, gs_rect *rect)
{
float args[4];
char *s = text;
int i;
args[0] = 0.0; args[1] = 0.0;
args[2] = 1.0; args[3] = 1.0;
for (i = 0; i < 4 && *s; i++)
{
args[i] = atof(s);
while (*s && *s != ',')
s++;
if (*s == ',')
s++;
}
rect->p.x = args[0];
rect->p.y = args[1];
rect->q.x = args[0] + args[2];
rect->q.y = args[1] + args[3];
}
|
