controllable_descriptor.cc

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/*
    Copyright (C) 2009 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.
*/

#include "pbd/controllable_descriptor.h"
#include "pbd/strsplit.h"
#include "pbd/convert.h"

using namespace std;
using namespace PBD;

int
ControllableDescriptor::set (const std::string& str)
{
        string::size_type first_space = str.find_first_of (" ");

        if (first_space == string::npos) {
                return -1;
        }

        string front = str.substr (0, first_space);
        string back = str.substr (first_space);

        vector<string> path;    
        split (front, path, '/');

        if (path.size() < 2) {
                return -1;
        }

        vector<string> rest;    
        split (back, rest, ' ');

        if (rest.size() < 1) {
                return -1;
        }

        if (path[0] == "route" || path[0] == "rid") {

                _top_level_type = RemoteControlID;

                if (rest[0][0] == 'B') {
                        _banked = true;
                        _rid = atoi (rest[0].substr (1));
                } else if (isdigit (rest[0][0])) {
                        _banked = false;
                        _rid = atoi (rest[0]);
                } else {
                        return -1;
                }

        } else if (path[0] == "bus" || path[0] == "track") {

                _top_level_type = NamedRoute;
                _top_level_name = rest[0];
        }

        if (path[1] == "gain") {
                _subtype = Gain;

        } else if (path[1] == "trim") {
                _subtype = Trim;

        } else if (path[1] == "solo") {
                _subtype = Solo;

        } else if (path[1] == "mute") {
                _subtype = Mute;

        } else if (path[1] == "recenable") {
                _subtype = Recenable;

        } else if (path[1] == "balance") {
                _subtype = Balance;

        } else if (path[1] == "panwidth") {
                _subtype = PanWidth;

        } else if (path[1] == "pandirection") {
                _subtype = PanDirection;

        } else if (path[1] == "plugin") {
                if (path.size() == 3 && rest.size() == 3) {
                        if (path[2] == "parameter") {
                                _subtype = PluginParameter;
                                _target.push_back (atoi (rest[1]));
                                _target.push_back (atoi (rest[2]));
                        } else {
                                return -1;
                        }
                } else {
                        return -1;
                }
        } else if (path[1] == "send") {
                
                if (path.size() == 3 && rest.size() == 2) {
                        if (path[2] == "gain") {
                                _subtype = SendGain;
                                _target.push_back (atoi (rest[1]));
                        } else {
                                return -1;
                        }
                } else {
                        return -1;
                }
        }
        
        return 0;
}

uint32_t
ControllableDescriptor::rid() const
{
        if (banked()) {
                return _rid + _bank_offset;
        }               

        return _rid;
}

uint32_t
ControllableDescriptor::target (uint32_t n) const
{
        if (n < _target.size()) {
                return _target[n];
        } 
        
        return 0;
}