composite_plugin_provider.h

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/*
 * Copyright (c) 2011, Dirk Thomas, TU Darmstadt
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *   * Neither the name of the TU Darmstadt nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 */
 
#ifndef qt_gui_cpp__CompositePluginProvider_H
#define qt_gui_cpp__CompositePluginProvider_H
 
#include "plugin_descriptor.h"
#include "plugin_provider.h"
 
#include <QList>
#include <QMap>
#include <QSet>
#include <QString>
 
namespace qt_gui_cpp
{
 
class CompositePluginProvider
  : public PluginProvider
{
 
public:
 
  CompositePluginProvider(const QList<PluginProvider*>& plugin_providers = QList<PluginProvider*>());
 
  virtual ~CompositePluginProvider();
 
  virtual void set_plugin_providers(const QList<PluginProvider*>& plugin_providers);
 
  virtual QList<PluginDescriptor*> discover_descriptors(QObject* discovery_data);
 
  virtual void* load(const QString& plugin_id, PluginContext* plugin_context);
 
  virtual Plugin* load_plugin(const QString& plugin_id, PluginContext* plugin_context);
 
  virtual void unload(void* plugin_instance);
 
  virtual void shutdown();
 
private:
 
  QList<PluginProvider*> plugin_providers_;
 
  QMap<PluginProvider*, QSet<QString> > discovered_plugins_;
 
  QMap<void*, PluginProvider*> running_plugins_;
 
};
 
} // namespace
 
#endif // qt_gui_cpp__CompositePluginProvider_H