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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* SVG <metadata> implementation
*
* Authors:
* Kees Cook <kees@outflux.net>
*
* Copyright (C) 2004 Kees Cook
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "sp-metadata.h"
#include <regex>
#include "xml/node-iterators.h"
#include "document.h"
#include "sp-item-group.h"
#include "sp-root.h"
#define noDEBUG_METADATA
#ifdef DEBUG_METADATA
# define debug(f, a...) { g_print("%s(%d) %s:", \
__FILE__,__LINE__,__FUNCTION__); \
g_print(f, ## a); \
g_print("\n"); \
}
#else
# define debug(f, a...) /**/
#endif
/* Metadata base class */
SPMetadata::SPMetadata() : SPObject() {
}
SPMetadata::~SPMetadata() = default;
namespace {
void strip_ids_recursively(Inkscape::XML::Node *node) {
using Inkscape::XML::NodeSiblingIterator;
if ( node->type() == Inkscape::XML::NodeType::ELEMENT_NODE ) {
node->removeAttribute("id");
}
for ( NodeSiblingIterator iter=node->firstChild() ; iter ; ++iter ) {
strip_ids_recursively(iter);
}
}
/**
* Return true if the given metadata belongs to a CorelDraw layer.
*/
bool is_corel_layer_metadata(SPMetadata const &metadata)
{
char const *id = metadata.getId();
return id && //
g_str_has_prefix(id, "CorelCorpID") && //
g_str_has_suffix(id, "Corel-Layer");
}
/**
* Get the label of a CorelDraw layer.
*/
std::string corel_layer_get_label(SPGroup const &layer)
{
char const *id = layer.getId();
if (id) {
return std::regex_replace(id, std::regex("_x0020_"), " ");
}
return "<unnamed-corel-layer>";
}
}
void SPMetadata::build(SPDocument* doc, Inkscape::XML::Node* repr) {
using Inkscape::XML::NodeSiblingIterator;
debug("0x%08x",(unsigned int)this);
/* clean up our mess from earlier versions; elements under rdf:RDF should not
* have id= attributes... */
static GQuark const rdf_root_name = g_quark_from_static_string("rdf:RDF");
for ( NodeSiblingIterator iter=repr->firstChild() ; iter ; ++iter ) {
if ( (GQuark)iter->code() == rdf_root_name ) {
strip_ids_recursively(iter);
}
}
SPObject::build(doc, repr);
}
void SPMetadata::release() {
debug("0x%08x",(unsigned int)this);
// handle ourself
SPObject::release();
}
void SPMetadata::set(SPAttr key, const gchar* value) {
debug("0x%08x %s(%u): '%s'",(unsigned int)this,
sp_attribute_name(key),key,value);
// see if any parents need this value
SPObject::set(key, value);
}
void SPMetadata::update(SPCtx* /*ctx*/, unsigned int flags) {
debug("0x%08x",(unsigned int)this);
//SPMetadata *metadata = SP_METADATA(object);
if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
/* do something? */
// Detect CorelDraw layers
if (is_corel_layer_metadata(*this)) {
auto layer = dynamic_cast<SPGroup *>(parent);
if (layer && layer->layerMode() == SPGroup::GROUP) {
layer->setLayerMode(SPGroup::LAYER);
if (!layer->label()) {
layer->setLabel(corel_layer_get_label(*layer).c_str());
}
}
}
}
// SPObject::onUpdate(ctx, flags);
}
Inkscape::XML::Node* SPMetadata::write(Inkscape::XML::Document* doc, Inkscape::XML::Node* repr, guint flags) {
debug("0x%08x",(unsigned int)this);
if ( repr != this->getRepr() ) {
if (repr) {
repr->mergeFrom(this->getRepr(), "id");
} else {
repr = this->getRepr()->duplicate(doc);
}
}
SPObject::write(doc, repr, flags);
return repr;
}
/**
* Retrieves the metadata object associated with a document.
*/
SPMetadata *sp_document_metadata(SPDocument *document)
{
SPObject *nv;
g_return_val_if_fail (document != nullptr, NULL);
nv = sp_item_group_get_child_by_name( document->getRoot(), nullptr,
"metadata");
g_assert (nv != nullptr);
return (SPMetadata *)nv;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
|
