vaikene.ee Git - evaf/blob - src/libs/Common/eventqueue.h

   1 /**
   2  * @file Common/eventqueue.h
   3  * @brief Event queue interface implementation
   4  * @author Enar Vaikene
   5  *
   6  * Copyright (c) 2011 Enar Vaikene
   7  *
   8  * This file is part of the eVaf C++ cross-platform application development framework.
   9  *
  10  * This file can be used under the terms of the GNU General Public License
  11  * version 3.0 as published by the Free Software Foundation and appearing in
  12  * the file LICENSE included in the packaging of this file. Please review the
  13  * the following information to ensure the GNU General Public License version
  14  * 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
  15  *
  16  * Alternatively, this file may be used in accordance with the Commercial License
  17  * Agreement provided with the Software.
  18  */
  19
  20 #ifndef __COMMON_EVENTQUEUE_H
  21 #define __COMMON_EVENTQUEUE_H
  22
  23 #include "ieventqueue.h"
  24
  25 #include <QObject>
  26 #include <QString>
  27 #include <QHash>
  28 #include <QList>
  29 #include <QPointer>
  30
  31
  32 namespace eVaf {
  33 namespace Common {
  34 namespace Internal {
  35
  36 /**
  37  * iEventQueue interface implementation
  38  */
  39 class EventQueue : public iEventQueue
  40 {
  41     Q_OBJECT
  42
  43 public:
  44
  45     EventQueue();
  46
  47     virtual ~EventQueue();
  48
  49     /// Qt event handler
  50     virtual bool event(QEvent * e);
  51
  52     /*
  53         iEventQueue interface
  54     */
  55
  56     virtual uint registerEvent(QString const & name);
  57
  58     virtual uint queryEvent(QString const & name) const;
  59
  60     virtual void unregisterEvent(uint id);
  61
  62     virtual uint subscribeEvent(uint id, QObject * obj);
  63
  64     virtual void unsubscribeEvent(uint id, QObject * obj);
  65
  66     virtual void broadcastEvent(Event * event);
  67
  68
  69 private: // Members
  70
  71     /// ID of the next event
  72     uint mNextEventId;
  73
  74     /// List of registered events
  75     QHash<uint, QString> mEvents;
  76
  77     /// List of subscribers
  78     QHash<uint, QList<QPointer<QObject> > > mSubscribers;
  79
  80 };
  81
  82 } // namespace evaf::Common::Internal
  83 } // namespace eVaf::Common
  84 } // namespace eVaf
  85
  86 #endif // eventqueue.h