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diff --git a/src/k3bapplication.h b/src/k3bapplication.h
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+/* 
+ *
+ * $Id: k3bapplication.h 619556 2007-01-03 17:38:12Z trueg $
+ * Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * 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" for the exact licensing terms.
+ */
+
+
+#ifndef _K3B_APPLICATION_H_
+#define _K3B_APPLICATION_H_
+
+#include <kuniqueapplication.h>
+#include <k3bcore.h>
+
+#include <qmap.h>
+
+#define k3bappcore K3bApplication::Core::k3bAppCore()
+
+
+class K3bMainWindow;
+class K3bInterface;
+class K3bJobInterface;
+class K3bAudioServer;
+class K3bThemeManager;
+class K3bProjectManager;
+class K3bAppDeviceManager;
+class K3bMediaCache;
+
+
+class K3bApplication : public KUniqueApplication
+{
+  Q_OBJECT
+
+ public:
+  K3bApplication();
+  ~K3bApplication();
+
+  int newInstance();
+
+  class Core;
+
+ public slots:
+  void init();
+
+ signals:
+  void initializationInfo( const QString& );
+  void initializationDone();
+
+ private slots:
+  void slotShutDown();
+
+ private:
+  bool processCmdLineArgs();
+
+  Core* m_core;
+  K3bAudioServer* m_audioServer;
+  K3bMainWindow* m_mainWindow;
+
+  bool m_needToInit;
+};
+
+
+/**
+ * The application's core which extends K3bCore with some additional features
+ * like the thememanager or an enhanced device manager.
+ */
+class K3bApplication::Core : public K3bCore
+{
+  Q_OBJECT
+
+ public:
+  Core( QObject* parent );
+  ~Core();
+
+  void init();
+
+  // make sure the libk3b uses the same configuration
+  // needed since the lib still depends on K3bCore::config
+  // the goal is to make the lib independent from the config
+  KConfig* config() const;
+
+  void readSettings( KConfig* c = 0 );
+  void saveSettings( KConfig* c = 0 );
+
+  /**
+   * \reimplemented from K3bCore. We use our own devicemanager here.
+   */
+  K3bDevice::DeviceManager* deviceManager() const;
+
+  K3bAppDeviceManager* appDeviceManager() const { return m_appDeviceManager; }
+
+  K3bThemeManager* themeManager() const { return m_themeManager; }
+
+  K3bProjectManager* projectManager() const { return m_projectManager; }
+
+  K3bMediaCache* mediaCache() const { return m_mediaCache; }
+
+  K3bMainWindow* k3bMainWindow() const { return m_mainWindow; }
+
+  K3bInterface* interface() const { return m_interface; }
+
+  K3bJobInterface* jobInterface() const { return m_jobInterface; }
+
+  static Core* k3bAppCore() { return s_k3bAppCore; }
+
+ signals:
+  /**
+   * This is used for showing info in the K3b splashscreen
+   */
+  void initializationInfo( const QString& );
+
+  /**
+   * Any component may request busy info
+   * In the K3b main app this will be displayed
+   * as a moving square in the taskbar
+   *
+   * FIXME: this is bad design
+   */
+  void busyInfoRequested( const QString& );
+
+  /**
+   * FIXME: this is bad design
+   */
+  void busyFinishRequested();
+
+ private:
+  void initDeviceManager();
+
+  bool internalBlockDevice( K3bDevice::Device* );
+  void internalUnblockDevice( K3bDevice::Device* );
+
+  K3bInterface* m_interface;
+  K3bJobInterface* m_jobInterface;
+
+  K3bThemeManager* m_themeManager;
+  K3bMainWindow* m_mainWindow;
+  K3bProjectManager* m_projectManager;
+  K3bAppDeviceManager* m_appDeviceManager;
+  K3bMediaCache* m_mediaCache;
+
+  QMap<K3bDevice::Device*, int> m_deviceBlockMap;
+
+  static Core* s_k3bAppCore;
+
+  friend class K3bApplication;
+};
+
+#endif