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/builddir/build/BUILD/flowcanvas-0.6.4/flowcanvas/Connectable.hpp

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00001 /* This file is part of FlowCanvas.
00002  * Copyright (C) 2007-2009 David Robillard <http://drobilla.net>
00003  *
00004  * FlowCanvas is free software; you can redistribute it and/or modify it under the
00005  * terms of the GNU General Public License as published by the Free Software
00006  * Foundation; either version 2 of the License, or (at your option) any later
00007  * version.
00008  *
00009  * FlowCanvas is distributed in the hope that it will be useful, but WITHOUT ANY
00010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00011  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
00012  *
00013  * You should have received a copy of the GNU General Public License along
00014  * with this program; if not, write to the Free Software Foundation, Inc.,
00015  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
00016  */
00017 
00018 #ifndef FLOWCANVAS_CONNECTABLE_HPP
00019 #define FLOWCANVAS_CONNECTABLE_HPP
00020 
00021 #include <boost/shared_ptr.hpp>
00022 
00023 namespace FlowCanvas {
00024 
00025 class Connection;
00026 
00027 
00028 class Connectable {
00029 public:
00030     virtual ~Connectable() {}
00031 
00032     virtual Gnome::Art::Point src_connection_point() = 0;
00033     virtual Gnome::Art::Point dst_connection_point(const Gnome::Art::Point& src) = 0;
00034     virtual Gnome::Art::Point connection_point_vector(double dx, double dy) = 0;
00035 
00036     virtual void add_connection(boost::shared_ptr<Connection> c);
00037     virtual void remove_connection(boost::shared_ptr<Connection> c);
00038 
00039     virtual void move_connections();
00040     virtual void raise_connections();
00041 
00042     bool is_connected_to(boost::shared_ptr<Connectable> other);
00043 
00044     typedef std::list< boost::weak_ptr<Connection> > Connections;
00045     Connections& connections() { return _connections; }
00046 
00047 protected:
00048 
00049     Connections _connections; 
00050 };
00051 
00052 
00053 } // namespace FlowCanvas
00054 
00055 #endif // FLOWCANVAS_CONNECTABLE_HPP

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