Added old abandoned KDE3 version of the RoseGarden MIDI tool

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/rosegarden@1097595 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 97 insertions, 0 deletions

diff --git a/src/sound/PluginFactory.h b/src/sound/PluginFactory.h
new file mode 100644
index 0000000..820b233
--- /dev/null
+++ b/src/sound/PluginFactory.h
@@ -0,0 +1,97 @@
+// -*- c-basic-offset: 4 -*-
+
+/*
+    Rosegarden
+    A sequencer and musical notation editor.
+
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <glaurent@telegraph-road.org>,
+        Chris Cannam        <cannam@all-day-breakfast.com>,
+        Richard Bown        <bownie@bownie.com>
+
+    The moral right of the authors to claim authorship of this work
+    has been asserted.
+
+    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.
+*/
+
+#ifndef _PLUGIN_FACTORY_H_
+#define _PLUGIN_FACTORY_H_
+
+#include <qstring.h>
+#include <vector>
+
+#include "MappedCommon.h"
+
+namespace Rosegarden
+{
+
+class RunnablePluginInstance;
+class MappedPluginSlot;
+
+class PluginFactory
+{
+public:
+    static PluginFactory *instance(QString pluginType);
+    static PluginFactory *instanceFor(QString identifier);
+    static void enumerateAllPlugins(MappedObjectPropertyList &);
+
+    static void setSampleRate(int sampleRate) { m_sampleRate = sampleRate; }
+
+    /**
+     * Look up the plugin path and find the plugins in it.  Called 
+     * automatically after construction of a factory.
+     */
+    virtual void discoverPlugins() = 0;
+
+    /**
+     * Return a reference to a list of all plugin identifiers that can
+     * be created by this factory.
+     */
+    virtual const std::vector<QString> &getPluginIdentifiers() const = 0;
+
+    /**
+     * Append to the given list descriptions of all the available
+     * plugins and their ports.  This is in a standard format, see
+     * the LADSPA implementation for details.
+     */
+    virtual void enumeratePlugins(MappedObjectPropertyList &list) = 0;
+
+    /**
+     * Populate the given plugin slot with information about its
+     * plugin.  This is called from the plugin slot's set method
+     * when it's been asked to set its plugin identifier.  This
+     * method should also destroy and recreate the plugin slot's
+     * port child objects.
+     */
+    virtual void populatePluginSlot(QString identifier,
+                                    MappedPluginSlot &slot) = 0;
+
+    /**
+     * Instantiate a plugin.
+     */
+    virtual RunnablePluginInstance *instantiatePlugin(QString identifier,
+                                                      int instrumentId,
+                                                      int position,
+                                                      unsigned int sampleRate,
+                                                      unsigned int blockSize,
+                                                      unsigned int channels) = 0;
+
+protected:
+    PluginFactory() { }
+
+    // for call by RunnablePluginInstance dtor
+    virtual void releasePlugin(RunnablePluginInstance *, QString identifier) = 0;
+    friend class RunnablePluginInstance;
+
+    static int m_sampleRate;
+};
+
+
+}
+
+#endif