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Diffstat (limited to 'libs/ardour/connection.cc')
| -rw-r--r-- | libs/ardour/connection.cc | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/libs/ardour/connection.cc b/libs/ardour/connection.cc new file mode 100644 index 0000000000..ea4e6d58e5 --- /dev/null +++ b/libs/ardour/connection.cc @@ -0,0 +1,275 @@ +/* + Copyright (C) 2002 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. + + $Id$ +*/ + +#include <algorithm> + +#include <pbd/failed_constructor.h> +#include <ardour/ardour.h> +#include <ardour/connection.h> +#include <pbd/xml++.h> + +#include "i18n.h" + +using namespace ARDOUR; +using namespace PBD; + +Connection::Connection (const XMLNode& node) +{ + if (set_state (node)) { + throw failed_constructor(); + } +} + +InputConnection::InputConnection (const XMLNode& node) + : Connection (node) +{ +} + +OutputConnection::OutputConnection (const XMLNode& node) + : Connection (node) +{ +} + +void +Connection::set_name (string name, void *src) +{ + _name = name; + NameChanged (src); +} + +void +Connection::add_connection (int port, string portname) +{ + { + LockMonitor lm (port_lock, __LINE__, __FILE__); + _ports[port].push_back (portname); + } + ConnectionsChanged (port); /* EMIT SIGNAL */ +} + +void +Connection::remove_connection (int port, string portname) +{ + bool changed = false; + + { + LockMonitor lm (port_lock, __LINE__, __FILE__); + PortList& pl = _ports[port]; + PortList::iterator i = find (pl.begin(), pl.end(), portname); + + if (i != pl.end()) { + pl.erase (i); + changed = true; + } + } + + if (changed) { + ConnectionsChanged (port); /* EMIT SIGNAL */ + } +} + +const Connection::PortList& +Connection::port_connections (int port) const +{ + LockMonitor lm (port_lock, __LINE__, __FILE__); + return _ports[port]; +} + +bool +Connection::operator== (const Connection& other) const +{ + return other._ports == _ports; +} + +void +Connection::add_port () +{ + { + LockMonitor lm (port_lock, __LINE__, __FILE__); + _ports.push_back (PortList()); + } + ConfigurationChanged(); /* EMIT SIGNAL */ +} + +void +Connection::remove_port (int which_port) +{ + bool changed = false; + + { + LockMonitor lm (port_lock, __LINE__, __FILE__); + vector<PortList>::iterator i; + int n; + + for (n = 0, i = _ports.begin(); i != _ports.end() && n < which_port; ++i, ++n); + + if (i != _ports.end()) { + _ports.erase (i); + changed = true; + } + } + + if (changed) { + ConfigurationChanged(); /* EMIT SIGNAL */ + } +} + +void +Connection::clear () +{ + { + LockMonitor lm (port_lock, __LINE__, __FILE__); + _ports.clear (); + } + + ConfigurationChanged(); /* EMIT SIGNAL */ +} + +XMLNode& +Connection::get_state () +{ + XMLNode *node; + string str; + + if (dynamic_cast<InputConnection *> (this)) { + node = new XMLNode ("InputConnection"); + } else { + node = new XMLNode ("OutputConnection"); + } + + node->add_property ("name", _name); + + for (vector<PortList>::iterator i = _ports.begin(); i != _ports.end(); ++i) { + + str += '{'; + + for (vector<string>::iterator ii = (*i).begin(); ii != (*i).end(); ++ii) { + if (ii != (*i).begin()) { + str += ','; + } + str += *ii; + } + str += '}'; + } + + node->add_property ("connections", str); + + return *node; +} + +int +Connection::set_state (const XMLNode& node) +{ + const XMLProperty *prop; + + if ((prop = node.property ("name")) == 0) { + error << _("Node for Connection has no \"name\" property") << endmsg; + return -1; + } + + _name = prop->value(); + _sysdep = false; + + if ((prop = node.property ("connections")) == 0) { + error << _("Node for Connection has no \"connections\" property") << endmsg; + return -1; + } + + set_connections (prop->value()); + + return 0; +} + +int +Connection::set_connections (const string& str) +{ + vector<string> ports; + int i; + int n; + int nports; + + if ((nports = count (str.begin(), str.end(), '{')) == 0) { + return 0; + } + + for (n = 0; n < nports; ++n) { + add_port (); + } + + string::size_type start, end, ostart; + + ostart = 0; + start = 0; + end = 0; + i = 0; + + while ((start = str.find_first_of ('{', ostart)) != string::npos) { + start += 1; + + if ((end = str.find_first_of ('}', start)) == string::npos) { + error << compose(_("IO: badly formed string in XML node for inputs \"%1\""), str) << endmsg; + return -1; + } + + if ((n = parse_io_string (str.substr (start, end - start), ports)) < 0) { + error << compose(_("bad input string in XML node \"%1\""), str) << endmsg; + + return -1; + + } else if (n > 0) { + + for (int x = 0; x < n; ++x) { + add_connection (i, ports[x]); + } + } + + ostart = end+1; + i++; + } + + return 0; +} + +int +Connection::parse_io_string (const string& str, vector<string>& ports) +{ + string::size_type pos, opos; + + if (str.length() == 0) { + return 0; + } + + pos = 0; + opos = 0; + + ports.clear (); + + while ((pos = str.find_first_of (',', opos)) != string::npos) { + ports.push_back (str.substr (opos, pos - opos)); + opos = pos + 1; + } + + if (opos < str.length()) { + ports.push_back (str.substr(opos)); + } + + return ports.size(); +} + |