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authorTavmjong Bah <tavmjong@free.fr>2018-01-30 08:33:01 +0000
committerTavmjong Bah <tavmjong@free.fr>2018-01-30 08:33:01 +0000
commit267299811df952d08324a39008f52c19641de9e0 (patch)
tree28fef736a52cb7a72119d119be8eb663ad20a77f /src/uri-references.cpp
parentTranslations: update inkscape.pot (diff)
downloadinkscape-267299811df952d08324a39008f52c19641de9e0.tar.gz
inkscape-267299811df952d08324a39008f52c19641de9e0.zip
Move classes derived from SPObject to own directory.
A lot of header clean-up.
Diffstat (limited to 'src/uri-references.cpp')
-rw-r--r--src/uri-references.cpp268
1 files changed, 0 insertions, 268 deletions
diff --git a/src/uri-references.cpp b/src/uri-references.cpp
deleted file mode 100644
index 7d6abd10a..000000000
--- a/src/uri-references.cpp
+++ /dev/null
@@ -1,268 +0,0 @@
-/**
- * Helper methods for resolving URI References
- *
- * Authors:
- * Lauris Kaplinski <lauris@kaplinski.com>
- * Marc Jeanmougin
- *
- * Copyright (C) 2001-2002 Lauris Kaplinski
- * Copyright (C) 2001 Ximian, Inc.
- *
- * Released under GNU GPL, read the file 'COPYING' for more information
- */
-
-#include "uri-references.h"
-
-#include <iostream>
-#include <cstring>
-
-#include <glibmm/miscutils.h>
-
-#include "bad-uri-exception.h"
-#include "document.h"
-#include "sp-object.h"
-#include "uri.h"
-#include "extract-uri.h"
-#include "sp-tag-use.h"
-
-namespace Inkscape {
-
-URIReference::URIReference(SPObject *owner)
- : _owner(owner)
- , _owner_document(NULL)
- , _obj(NULL)
- , _uri(NULL)
-{
- g_assert(_owner != NULL);
- /* FIXME !!! attach to owner's destroy signal to clean up in case */
-}
-
-URIReference::URIReference(SPDocument *owner_document)
- : _owner(NULL)
- , _owner_document(owner_document)
- , _obj(NULL)
- , _uri(NULL)
-{
- g_assert(_owner_document != NULL);
-}
-
-URIReference::~URIReference() { detach(); }
-
-/*
- * The main ideas here are:
- * (1) "If we are inside a clone, then we can accept if and only if our "original thing" can accept the reference"
- * (this caused problems when there are clones because a change in ids triggers signals for the object hrefing this id,
- * but also its cloned reprs(descendants of <use> referencing an ancestor of the href'ing object)).
- *
- * (2) Once we have an (potential owner) object, it can accept a href to obj, iff the graph of objects where directed
- * edges are
- * either parent->child relations , *** or href'ing to href'ed *** relations, stays acyclic.
- * We can go either from owner and up in the tree, or from obj and down, in either case this will be in the worst case
- *linear in the number of objects.
- * There are no easy objects allowing to do the second proposition, while "hrefList" is a "list of objects href'ing us",
- *so we'll take this.
- * Then we keep a set of already visited elements, and do a DFS on this graph. if we find obj, then BOOM.
- */
-
-bool URIReference::_acceptObject(SPObject *obj) const
-{
- // we go back following hrefList and parent to find if the object already references ourselves indirectly
- std::set<SPObject *> done;
- SPObject *owner = getOwner();
- if (!owner)
- return true;
-
- while (owner->cloned) {
- if(!owner->clone_original)//happens when the clone is existing and linking to something, even before the original objects exists.
- //for instance, it can happen when you paste a filtered object in a already cloned group: The construction of the
- //clone representation of the filtered object will finish before the original object, so the cloned repr will
- //have to _accept the filter even though the original does not exist yet. In that case, we'll accept iff the parent of the
- //original can accept it: loops caused by other relations than parent-child would be prevented when created on their base object.
- //Fixes bug 1636533.
- owner = owner->parent;
- else
- owner = owner->clone_original;
- }
- // once we have the "original" object (hopefully) we look at who is referencing it
- if (obj == owner)
- return false;
- std::list<SPObject *> todo(owner->hrefList);
- todo.push_front(owner->parent);
- while (!todo.empty()) {
- SPObject *e = todo.front();
- todo.pop_front();
- if (!dynamic_cast<SPObject *>(e))
- continue;
- if (done.insert(e).second) {
- if (e == obj) {
- return false;
- }
- todo.push_front(e->parent);
- todo.insert(todo.begin(), e->hrefList.begin(), e->hrefList.end());
- }
- }
- return true;
-}
-
-
-
-void URIReference::attach(const URI &uri)
-{
- SPDocument *document = NULL;
-
- // Attempt to get the document that contains the URI
- if (_owner) {
- document = _owner->document;
- } else if (_owner_document) {
- document = _owner_document;
- }
-
- // createChildDoc() assumes that the referenced file is an SVG.
- // PNG and JPG files are allowed (in the case of feImage).
- gchar *filename = uri.toString();
- bool skip = false;
- if (g_str_has_suffix(filename, ".jpg") || g_str_has_suffix(filename, ".JPG") ||
- g_str_has_suffix(filename, ".png") || g_str_has_suffix(filename, ".PNG")) {
- skip = true;
- }
-
- // The path contains references to separate document files to load.
- if (document && uri.getPath() && !skip) {
- std::string base = document->getBase() ? document->getBase() : "";
- std::string path = uri.getFullPath(base);
- if (!path.empty()) {
- document = document->createChildDoc(path);
- } else {
- document = NULL;
- }
- }
- if (!document) {
- g_warning("Can't get document for referenced URI: %s", filename);
- g_free(filename);
- return;
- }
- g_free(filename);
-
- gchar const *fragment = uri.getFragment();
- if (!uri.isRelative() || uri.getQuery() || !fragment) {
- throw UnsupportedURIException();
- }
-
- /* FIXME !!! real xpointer support should be delegated to document */
- /* for now this handles the minimal xpointer form that SVG 1.0
- * requires of us
- */
- gchar *id = NULL;
- if (!strncmp(fragment, "xpointer(", 9)) {
- /* FIXME !!! this is wasteful */
- /* FIXME: It looks as though this is including "))" in the id. I suggest moving
- the strlen calculation and validity testing to before strdup, and copying just
- the id without the "))". -- pjrm */
- if (!strncmp(fragment, "xpointer(id(", 12)) {
- id = g_strdup(fragment + 12);
- size_t const len = strlen(id);
- if (len < 3 || strcmp(id + len - 2, "))")) {
- g_free(id);
- throw MalformedURIException();
- }
- } else {
- throw UnsupportedURIException();
- }
- } else {
- id = g_strdup(fragment);
- }
-
- /* FIXME !!! validate id as an NCName somewhere */
-
- _connection.disconnect();
- delete _uri;
- _uri = new URI(uri);
-
- _setObject(document->getObjectById(id));
- _connection = document->connectIdChanged(id, sigc::mem_fun(*this, &URIReference::_setObject));
-
- g_free(id);
-}
-
-void URIReference::detach()
-{
- _connection.disconnect();
- delete _uri;
- _uri = NULL;
- _setObject(NULL);
-}
-
-void URIReference::_setObject(SPObject *obj)
-{
- if (obj && !_acceptObject(obj)) {
- obj = NULL;
- }
-
- if (obj == _obj)
- return;
-
- SPObject *old_obj = _obj;
- _obj = obj;
-
- _release_connection.disconnect();
- if (_obj) {
- sp_object_href(_obj, _owner);
- _release_connection = _obj->connectRelease(sigc::mem_fun(*this, &URIReference::_release));
- }
- _changed_signal.emit(old_obj, _obj);
- if (old_obj) {
- /* release the old object _after_ the signal emission */
- sp_object_hunref(old_obj, _owner);
- }
-}
-
-/* If an object is deleted, current semantics require that we release
- * it on its "release" signal, rather than later, when its ID is actually
- * unregistered from the document.
- */
-void URIReference::_release(SPObject *obj)
-{
- g_assert(_obj == obj);
- _setObject(NULL);
-}
-
-} /* namespace Inkscape */
-
-
-
-SPObject *sp_css_uri_reference_resolve(SPDocument *document, const gchar *uri)
-{
- SPObject *ref = NULL;
-
- if (document && uri && (strncmp(uri, "url(", 4) == 0)) {
- gchar *trimmed = extract_uri(uri);
- if (trimmed) {
- ref = sp_uri_reference_resolve(document, trimmed);
- g_free(trimmed);
- }
- }
-
- return ref;
-}
-
-SPObject *sp_uri_reference_resolve(SPDocument *document, const gchar *uri)
-{
- SPObject *ref = NULL;
-
- if (uri && (*uri == '#')) {
- ref = document->getObjectById(uri + 1);
- }
-
- return ref;
-}
-
-/*
- 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 :