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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/object/sp-metadata.cpp | |
parent | Initial commit. (diff) | |
download | inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.tar.xz inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/object/sp-metadata.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/object/sp-metadata.cpp b/src/object/sp-metadata.cpp new file mode 100644 index 0000000..5a91eab --- /dev/null +++ b/src/object/sp-metadata.cpp @@ -0,0 +1,178 @@ +// 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 : |