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/*
* SVG <metadata> implementation
*
* Authors:
* Kees Cook <kees@outflux.net>
*
* Copyright (C) 2004 Kees Cook
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "sp-metadata.h"
#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() {
}
namespace {
void strip_ids_recursively(Inkscape::XML::Node *node) {
using Inkscape::XML::NodeSiblingIterator;
if ( node->type() == Inkscape::XML::ELEMENT_NODE ) {
node->setAttribute("id", NULL);
}
for ( NodeSiblingIterator iter=node->firstChild() ; iter ; ++iter ) {
strip_ids_recursively(iter);
}
}
}
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(unsigned int 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? */
}
// 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 != NULL, NULL);
nv = sp_item_group_get_child_by_name( document->getRoot(), NULL,
"metadata");
g_assert (nv != NULL);
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 :
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