1 files changed, 69 insertions, 0 deletions
diff --git a/src/object/persp3d-reference.h b/src/object/persp3d-reference.h
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+++ b/src/object/persp3d-reference.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef SEEN_PERSP3D_REFERENCE_H
+#define SEEN_PERSP3D_REFERENCE_H
+
+/*
+ * The reference corresponding to the inkscape:perspectiveID attribute
+ *
+ * Copyright (C) 2007 Johan Engelen
+ * Copyright (C) 2007 Maximilian Albert
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <cstddef>
+#include <sigc++/sigc++.h>
+
+#include "uri-references.h"
+#include "persp3d.h"
+
+class SPObject;
+
+namespace Inkscape {
+namespace XML {
+class Node;
+}
+}
+
+class Persp3DReference : public Inkscape::URIReference {
+public:
+    Persp3DReference(SPObject *obj);
+    ~Persp3DReference() override;
+
+    Persp3D *getObject() const {
+        return SP_PERSP3D(URIReference::getObject());
+    }
+
+    SPObject *owner;
+
+    // concerning the Persp3D (we only use SPBox3D) that is referred to:
+    char *persp_href;
+    Inkscape::XML::Node *persp_repr;
+    Persp3D *persp;
+
+    sigc::connection _changed_connection;
+    sigc::connection _modified_connection;
+    sigc::connection _delete_connection;
+
+    void link(char* to);
+    void unlink();
+    void start_listening(Persp3D* to);
+    void quit_listening();
+
+protected:
+    bool _acceptObject(SPObject *obj) const override;
+};
+
+
+#endif /* !SEEN_PERSP3D_REFERENCE_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 :