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
206
|
#include "mupdf/xps.h"
/* Quick parsing of document to find links. */
static void
xps_load_links_in_element(fz_context *ctx, xps_document *doc, const fz_matrix *ctm,
char *base_uri, xps_resource *dict, fz_xml *node, fz_link **link);
static void
xps_add_link(fz_context *ctx, xps_document *doc, const fz_rect *area, char *base_uri, char *target_uri, fz_link **head)
{
fz_link_dest dest;
fz_link *link;
memset(&dest, 0, sizeof dest);
if (xps_url_is_remote(ctx, doc, target_uri))
{
dest.kind = FZ_LINK_URI;
dest.ld.uri.uri = fz_strdup(ctx, target_uri);
}
else
{
dest.kind = FZ_LINK_GOTO;
dest.ld.gotor.page = xps_lookup_link_target(ctx, doc, target_uri);
}
link = fz_new_link(ctx, area, dest);
link->next = *head;
*head = link;
}
static void
xps_load_links_in_path(fz_context *ctx, xps_document *doc, const fz_matrix *ctm,
char *base_uri, xps_resource *dict, fz_xml *root, fz_link **link)
{
char *navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
if (navigate_uri_att)
{
char *transform_att = fz_xml_att(root, "RenderTransform");
fz_xml *transform_tag = fz_xml_down(fz_xml_find_down(root, "Path.RenderTransform"));
char *data_att = fz_xml_att(root, "Data");
fz_xml *data_tag = fz_xml_down(fz_xml_find_down(root, "Path.Data"));
fz_path *path = NULL;
int fill_rule;
fz_matrix local_ctm;
fz_rect area;
xps_resolve_resource_reference(ctx, doc, dict, &data_att, &data_tag, NULL);
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
xps_parse_transform(ctx, doc, transform_att, transform_tag, &local_ctm, ctm);
if (data_att)
path = xps_parse_abbreviated_geometry(ctx, doc, data_att, &fill_rule);
else if (data_tag)
path = xps_parse_path_geometry(ctx, doc, dict, data_tag, 0, &fill_rule);
if (path)
{
fz_bound_path(ctx, path, NULL, &local_ctm, &area);
fz_drop_path(ctx, path);
xps_add_link(ctx, doc, &area, base_uri, navigate_uri_att, link);
}
}
}
static void
xps_load_links_in_glyphs(fz_context *ctx, xps_document *doc, const fz_matrix *ctm,
char *base_uri, xps_resource *dict, fz_xml *root, fz_link **link)
{
char *navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
if (navigate_uri_att)
{
char *transform_att = fz_xml_att(root, "RenderTransform");
fz_xml *transform_tag = fz_xml_down(fz_xml_find_down(root, "Path.RenderTransform"));
char *bidi_level_att = fz_xml_att(root, "BidiLevel");
char *font_size_att = fz_xml_att(root, "FontRenderingEmSize");
char *font_uri_att = fz_xml_att(root, "FontUri");
char *origin_x_att = fz_xml_att(root, "OriginX");
char *origin_y_att = fz_xml_att(root, "OriginY");
char *is_sideways_att = fz_xml_att(root, "IsSideways");
char *indices_att = fz_xml_att(root, "Indices");
char *unicode_att = fz_xml_att(root, "UnicodeString");
char *style_att = fz_xml_att(root, "StyleSimulations");
int is_sideways = 0;
int bidi_level = 0;
fz_matrix local_ctm;
fz_font *font;
fz_text *text;
fz_rect area;
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
xps_parse_transform(ctx, doc, transform_att, transform_tag, &local_ctm, ctm);
if (is_sideways_att)
is_sideways = !strcmp(is_sideways_att, "true");
if (bidi_level_att)
bidi_level = atoi(bidi_level_att);
font = xps_lookup_font(ctx, doc, base_uri, font_uri_att, style_att);
text = xps_parse_glyphs_imp(ctx, doc, &local_ctm, font, fz_atof(font_size_att),
fz_atof(origin_x_att), fz_atof(origin_y_att),
is_sideways, bidi_level, indices_att, unicode_att);
fz_bound_text(ctx, text, NULL, &local_ctm, &area);
fz_drop_text(ctx, text);
fz_drop_font(ctx, font);
xps_add_link(ctx, doc, &area, base_uri, navigate_uri_att, link);
}
}
static void
xps_load_links_in_canvas(fz_context *ctx, xps_document *doc, const fz_matrix *ctm,
char *base_uri, xps_resource *dict, fz_xml *root, fz_link **link)
{
xps_resource *new_dict = NULL;
fz_matrix local_ctm;
fz_xml *node;
char *navigate_uri_att = fz_xml_att(root, "FixedPage.NavigateUri");
char *transform_att = fz_xml_att(root, "RenderTransform");
fz_xml *transform_tag = fz_xml_down(fz_xml_find_down(root, "Canvas.RenderTransform"));
fz_xml *resource_tag = fz_xml_down(fz_xml_find_down(root, "Canvas.Resources"));
if (resource_tag)
{
new_dict = xps_parse_resource_dictionary(ctx, doc, base_uri, resource_tag);
if (new_dict)
{
new_dict->parent = dict;
dict = new_dict;
}
}
xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL);
xps_parse_transform(ctx, doc, transform_att, transform_tag, &local_ctm, ctm);
if (navigate_uri_att)
fz_warn(ctx, "FixedPage.NavigateUri attribute on Canvas element");
for (node = fz_xml_down(root); node; node = fz_xml_next(node))
xps_load_links_in_element(ctx, doc, &local_ctm, base_uri, dict, node, link);
if (new_dict)
xps_drop_resource_dictionary(ctx, doc, new_dict);
}
static void
xps_load_links_in_element(fz_context *ctx, xps_document *doc, const fz_matrix *ctm, char *base_uri, xps_resource *dict, fz_xml *node, fz_link **link)
{
if (fz_xml_is_tag(node, "Path"))
xps_load_links_in_path(ctx, doc, ctm, base_uri, dict, node, link);
else if (fz_xml_is_tag(node, "Glyphs"))
xps_load_links_in_glyphs(ctx, doc, ctm, base_uri, dict, node, link);
else if (fz_xml_is_tag(node, "Canvas"))
xps_load_links_in_canvas(ctx, doc, ctm, base_uri, dict, node, link);
else if (fz_xml_is_tag(node, "AlternateContent"))
{
node = xps_lookup_alternate_content(ctx, doc, node);
if (node)
xps_load_links_in_element(ctx, doc, ctm, base_uri, dict, node, link);
}
}
static void
xps_load_links_in_fixed_page(fz_context *ctx, xps_document *doc, const fz_matrix *ctm, xps_page *page, fz_link **link)
{
fz_xml *node, *resource_tag;
xps_resource *dict = NULL;
char base_uri[1024];
char *s;
if (!page->root)
return;
fz_strlcpy(base_uri, page->fix->name, sizeof base_uri);
s = strrchr(base_uri, '/');
if (s)
s[1] = 0;
resource_tag = fz_xml_down(fz_xml_find_down(page->root, "FixedPage.Resources"));
if (resource_tag)
dict = xps_parse_resource_dictionary(ctx, doc, base_uri, resource_tag);
for (node = fz_xml_down(page->root); node; node = fz_xml_next(node))
xps_load_links_in_element(ctx, doc, ctm, base_uri, dict, node, link);
if (dict)
xps_drop_resource_dictionary(ctx, doc, dict);
}
fz_link *
xps_load_links(fz_context *ctx, xps_page *page)
{
fz_matrix ctm;
fz_link *link = NULL;
fz_scale(&ctm, 72.0f / 96.0f, 72.0f / 96.0f);
xps_load_links_in_fixed_page(ctx, page->doc, &ctm, page, &link);
return link;
}
|
