bundle.h

Go to the documentation of this file.

/*
    Copyright (C) 2002-2007 Paul Davis

    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; either version 2 of the License, or
    (at your option) any later version.

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __ardour_bundle_h__
#define __ardour_bundle_h__

#include <string>
#include <vector>
#include <glibmm/threads.h>
#include <boost/shared_ptr.hpp>

#include "pbd/signals.h"

#include "ardour/data_type.h"
#include "ardour/chan_count.h"

namespace ARDOUR {

class AudioEngine;

class LIBARDOUR_API Bundle : public PBD::ScopedConnectionList
{
  public:

        typedef std::vector<std::string> PortList;

        struct Channel {
                Channel (std::string n, DataType t) : name (n), type (t) {}
                Channel (std::string n, DataType t, PortList p) : name (n), type (t), ports (p) {}
                Channel (std::string n, DataType t, std::string const & p) : name (n), type (t) {
                        ports.push_back (p);
                }

                bool operator== (Channel const &o) const {
                        return name == o.name && type == o.type && ports == o.ports;
                }

                std::string name;
                DataType type;
                PortList ports;
        };

        Bundle (bool i = true);
        Bundle (std::string const &, bool i = true);
        Bundle (boost::shared_ptr<Bundle>);

        virtual ~Bundle() {}

        ChanCount nchannels () const;

        PortList const & channel_ports (uint32_t) const;

        void add_channel (std::string const &, DataType);
        void add_channel (std::string const &, DataType, std::string const &);
        void add_channel (std::string const &, DataType, PortList);
        std::string channel_name (uint32_t) const;
        DataType channel_type (uint32_t) const;
        void set_channel_name (uint32_t, std::string const &);
        void add_port_to_channel (uint32_t, std::string);
        void set_port (uint32_t, std::string);
        void remove_port_from_channel (uint32_t, std::string);
        void remove_ports_from_channel (uint32_t);
        void remove_ports_from_channels ();
        bool port_attached_to_channel (uint32_t, std::string);
        bool offers_port (std::string) const;
        bool offers_port_alone (std::string) const;
        void remove_channel (uint32_t);
        void remove_channels ();
        void add_channels_from_bundle (boost::shared_ptr<Bundle>);
        void connect (boost::shared_ptr<Bundle>, AudioEngine &);
        void disconnect (boost::shared_ptr<Bundle>, AudioEngine &);
        bool connected_to (boost::shared_ptr<Bundle>, AudioEngine &);
        bool connected_to_anything (AudioEngine &);
        bool has_same_ports (boost::shared_ptr<Bundle>) const;
        uint32_t type_channel_to_overall (DataType, uint32_t) const;
        uint32_t overall_channel_to_type (DataType, uint32_t) const;

        void set_name (std::string const &);

        std::string name () const { return _name; }

        void set_ports_are_inputs ();
        void set_ports_are_outputs ();
        bool ports_are_inputs () const { return _ports_are_inputs; }
        bool ports_are_outputs () const { return !_ports_are_inputs; }

        void suspend_signals ();
        void resume_signals ();

        bool operator== (Bundle const & other);

        enum Change {
                NameChanged = 0x1, 
                ConfigurationChanged = 0x2, 
                PortsChanged = 0x4, 
                TypeChanged = 0x8, 
                DirectionChanged = 0x10 
        };

        PBD::Signal1<void,Change> Changed;

  protected:

        mutable Glib::Threads::Mutex _channel_mutex;
        std::vector<Channel> _channel;

  private:
        int set_channels (std::string const &);
        int parse_io_string (std::string const &, std::vector<std::string> &);
        void emit_changed (Change);

        std::string _name;
        bool _ports_are_inputs;

        bool _signals_suspended;
        Change _pending_change;
};

class LIBARDOUR_API BundleChannel
{
public:
        BundleChannel () : channel (-1) {}

        BundleChannel (boost::shared_ptr<Bundle> b, int c)
                : bundle (b), channel (c) {}

        bool operator== (BundleChannel const& other) const {
                return bundle == other.bundle && channel == other.channel;
        }

        bool operator!= (BundleChannel const& other) const {
                return bundle != other.bundle || channel != other.channel;
        }

        boost::shared_ptr<Bundle> bundle;
        int channel; 
};

}

std::ostream & operator<< (std::ostream & o, ARDOUR::Bundle const &);

#endif /* __ardour_bundle_h__ */