1 files changed, 57 insertions, 0 deletions
diff --git a/src/object/sp-tag-use.h b/src/object/sp-tag-use.h
new file mode 100644
index 0000000..4b9e798
--- /dev/null
+++ b/src/object/sp-tag-use.h
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef __SP_TAG_USE_H__
+#define __SP_TAG_USE_H__
+
+/*
+ * SVG <inkscape:tagref> implementation
+ *
+ * Authors:
+ *   Theodore Janeczko
+ *
+ * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <glib.h>
+#include <cstddef>
+#include <sigc++/sigc++.h>
+#include "svg/svg-length.h"
+#include "sp-object.h"
+
+
+#define SP_TAG_USE(obj)            (dynamic_cast<SPTagUse*> (obj))
+#define SP_IS_TAG_USE(obj)         (dynamic_cast<SPTagUse*> (obj) != NULL)
+
+class SPItem;
+class SPTagUse;
+class SPTagUseReference;
+
+class SPTagUse : public SPObject {
+
+public:
+    // item built from the original's repr (the visible clone)
+    // relative to the SPUse itself, it is treated as a child, similar to a grouped item relative to its group
+    SPObject *child;
+    gchar *href;
+public:
+    SPTagUse();
+    ~SPTagUse() override;
+    
+    void build(SPDocument *doc, Inkscape::XML::Node *repr) override;
+    void set(SPAttr key, gchar const *value) override;
+    Inkscape::XML::Node* write(Inkscape::XML::Document* doc, Inkscape::XML::Node* repr, guint flags) override;
+    void release() override;
+    
+    virtual void href_changed(SPObject* old_ref, SPObject* ref);
+    
+    //virtual SPItem* unlink();
+    virtual SPItem* get_original();
+    virtual SPItem* root();
+
+    // the reference to the original object
+    SPTagUseReference *ref;
+    sigc::connection _changed_connection;
+};
+
+#endif