// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
 * TODO: insert short description here
 *//*
 * Authors: see git history
 *
 * Copyright (C) 2018 Authors
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */
#ifndef SEEN_SP_CONN_END
#define SEEN_SP_CONN_END

#include <cstddef>
#include <sigc++/connection.h>

#include "sp-use-reference.h"
#include "conn-avoid-ref.h"

class SPPath;

class SPConnEnd {
public:
    SPConnEnd(SPObject *owner);

    /*
     * Ref points to the main object the connection end is attached to
     * while sub_ref points to a sub-object that may be inside a symbol
     * or clone object id. Sub_ref is optional.
     */
    SPUseReference ref;
    SPUseReference sub_ref;
    char *href = nullptr;
    char *sub_href = nullptr;

    /** Change of href string (not a modification of the attributes of the referrent). */
    sigc::connection _changed_connection;

    /** Called when the attached object gets deleted. */
    sigc::connection _delete_connection;

    /** A sigc connection for transformed signal, used to do move compensation. */
    sigc::connection _transformed_connection;

    /** A sigc connection for owning group transformed, used to do move compensation. */
    sigc::connection _group_connection;

    void setAttacherHref(char const * value);
    void setAttacherSubHref(char const * value);


private:
    SPConnEnd(SPConnEnd const &) = delete; // no copy
    SPConnEnd &operator=(SPConnEnd const &) = delete; // no assign
};

void sp_conn_end_href_changed(SPObject *old_ref, SPObject *ref,
                              SPConnEnd *connEnd, SPPath *path, unsigned const handle_ix);
void sp_conn_reroute_path(SPPath *const path);
void sp_conn_reroute_path_immediate(SPPath *const path);
void sp_conn_redraw_path(SPPath *const path);
void sp_conn_end_detach(SPObject *const owner, unsigned const handle_ix);


#endif /* !SEEN_SP_CONN_END */

/*
  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 :