1 files changed, 85 insertions, 0 deletions
diff --git a/src/object/sp-tref.h b/src/object/sp-tref.h
new file mode 100644
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--- /dev/null
+++ b/src/object/sp-tref.h
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef SP_TREF_H
+#define SP_TREF_H
+
+/** \file
+ * SVG <tref> implementation, see sp-tref.cpp.
+ * 
+ * This file was created based on skeleton.h
+ */
+/*
+ * Authors:
+ *   Gail Banaszkiewicz <Gail.Banaszkiewicz@gmail.com>
+ *
+ * Copyright (C) 2007 Gail Banaszkiewicz
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "sp-item.h"
+#include "sp-tref-reference.h"
+#include "text-tag-attributes.h"
+
+
+/* tref base class */
+
+class SPTRef : public SPItem {
+public:
+	SPTRef();
+	~SPTRef() override;
+
+    // Attributes that are used in the same way they would be in a tspan
+    TextTagAttributes attributes;
+    
+    // Text stored in the xlink:href attribute
+    char *href;
+    
+    // URI reference to original object
+    SPTRefReference *uriOriginalRef;
+    
+    // Shortcut pointer to the child of the tref (which is a copy
+    // of the character data stored at and/or below the node
+    // referenced by uriOriginalRef)
+    SPObject *stringChild;
+    
+    // The sigc connections for various notifications
+    sigc::connection _delete_connection;
+    sigc::connection _changed_connection;
+    
+    SPObject * getObjectReferredTo();
+    SPObject const *getObjectReferredTo() const;
+
+	void build(SPDocument* doc, Inkscape::XML::Node* repr) override;
+	void release() override;
+	void set(SPAttr key, char const* value) override;
+	void update(SPCtx* ctx, unsigned int flags) override;
+	void modified(unsigned int flags) override;
+	Inkscape::XML::Node* write(Inkscape::XML::Document* doc, Inkscape::XML::Node* repr, guint flags) override;
+
+	Geom::OptRect bbox(Geom::Affine const &transform, SPItem::BBoxType type) const override;
+        const char* typeName() const override;
+        const char* displayName() const override;
+	char* description() const override;
+};
+
+void sp_tref_update_text(SPTRef *tref);
+bool sp_tref_reference_allowed(SPTRef *tref, SPObject *possible_ref);
+bool sp_tref_fully_contained(SPObject *start_item, Glib::ustring::iterator &start, 
+                             SPObject *end_item, Glib::ustring::iterator &end);
+SPObject * sp_tref_convert_to_tspan(SPObject *item);
+
+MAKE_SP_OBJECT_DOWNCAST_FUNCTIONS(SP_TREF, SPTRef)
+MAKE_SP_OBJECT_TYPECHECK_FUNCTIONS(SP_IS_TREF, SPTRef)
+
+#endif /* !SP_TREF_H */
+
+/*
+  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 :