comparison osc/OSCQueue.h @ 69:76cc2c424268

* Update the main sv.prf for compatibility with Qt 4.2 qmake instead of
  that from 4.1.  Add a README.Qt41 describing how to build with 4.1 if
  preferred.
* Add OSC support for control from external scripts etc (work in progress).

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    
+    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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+/*
+   This is a modified version of a source file from the 
+   Rosegarden MIDI and audio sequencer and notation editor.
+   This file copyright 2000-2006 Chris Cannam.
+*/
+
+#ifndef _OSC_QUEUE_H_
+#define _OSC_QUEUE_H_
+
+#include "OSCMessage.h"
+
+#include "base/RingBuffer.h"
+
+#include <QObject>
+
+#ifdef HAVE_LIBLO
+#include <lo/lo.h>
+#endif
+
+class OSCQueue : public QObject
+{
+    Q_OBJECT
+
+public:
+    OSCQueue();
+    virtual ~OSCQueue();
+
+    bool isOK() const;
+
+    bool isEmpty() const { return getMessagesAvailable() == 0; }
+    size_t getMessagesAvailable() const;
+    OSCMessage readMessage();
+
+    QString getOSCURL() const;
+
+signals:
+    void messagesAvailable();
+
+protected:
+#ifdef HAVE_LIBLO
+    lo_server_thread m_thread;
+
+    static void oscError(int, const char *, const char *);
+    static int oscMessageHandler(const char *, const char *, lo_arg **,
+                                 int, lo_message, void *);
+#endif
+
+    void postMessage(OSCMessage);
+    bool parseOSCPath(QString path, int &target, int &targetData, QString &method);
+
+    RingBuffer<OSCMessage *> m_buffer;
+};
+
+#endif
+