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/*
Copyright (C) 2000 Stefan Westerfeld
stefan@space.twc.de
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef VIRTUALPORTS_H
#define VIRTUALPORTS_H
#include "gslschedule.h"
#include <list>
/*
* BC - Status (2002-03-08): VPortConnection, VPort.
*
* None of these classes is considered part of the public API. Do NOT use it
* in your apps. These are part of the implementation of libartsflow's
* StdFlowSystem, and subject to change with the needs of it.
*/
namespace Arts {
class VPortConnection {
private:
friend class VPort;
VPort *source;
VPort *dest;
public:
enum Style { vcForward, vcMasquerade, vcConnect, vcTransport } style;
VPortConnection(VPort *source, VPort *dest, Style style);
~VPortConnection();
};
class VPort {
private:
friend class VPortConnection;
protected:
Port *port;
std::string _name;
std::list<VPortConnection *> incoming, outgoing;
void makeTransport(VPortConnection *conn);
void removeTransport(VPortConnection *conn);
void expandHelper(VPortConnection *conn, int state, VPort *current,
VPort *source, VPort *dest, bool remove);
bool makeVirtualizeParams(VPort *forward, VPort *& source, VPort *& dest,
VPortConnection::Style &style);
const char *name();
public:
VPort(Port *p);
~VPort();
void setFloatValue(float value);
void connect(VPort *vport);
void disconnect(VPort *port);
/**
* a->virtualize(b) means that the functionality that port a should provide
* (produce or consume data) is really provided by port b
*/
void virtualize(VPort *port);
void devirtualize(VPort *port);
};
}
#endif /* VIRTUALPORTS_H */
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