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/*
* Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of the
* License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef __MDC_CONNECTOR_H__
#define __MDC_CONNECTOR_H__
#include "mdc_common.h"
#include "base/trackable.h"
BEGIN_MDC_DECLS
class Magnet;
class CanvasItem;
class MYSQLCANVAS_PUBLIC_FUNC Connector : public base::trackable
{
public:
Connector(CanvasItem *owner);
virtual ~Connector();
void set_update_handler(const boost::function<void (Connector*)> &update_handler);
virtual bool try_connect(Magnet *magnet);
virtual bool try_disconnect();
virtual void connect(Magnet *magnet);
virtual void disconnect();
void set_draggable(bool flag);
bool is_draggable() { return _draggable; }
void set_tag(int tag) { _tag= tag; }
int get_tag() { return _tag; }
Magnet *get_connected_magnet() { return _magnet; }
CanvasItem *get_connected_item();
CanvasItem *get_owner() { return _owner; }
base::Point get_position(const base::Point &srcpos);
base::Point get_position();
// callback for Magnet
virtual void magnet_moved(Magnet *magnet);
protected:
CanvasItem *_owner;
Magnet *_magnet;
int _tag;
bool _draggable;
boost::function<void (Connector*)> _update_handler;
};
END_MDC_DECLS
#endif
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