eventmanager.h

00001 /***************************************************************************
00002  *   Copyright (C) 2005-2008 by the FIFE team                              *
00003  *   http://www.fifengine.de                                               *
00004  *   This file is part of FIFE.                                            *
00005  *                                                                         *
00006  *   FIFE is free software; you can redistribute it and/or                 *
00007  *   modify it under the terms of the GNU Lesser General Public            *
00008  *   License as published by the Free Software Foundation; either          *
00009  *   version 2.1 of the License, or (at your option) any later version.    *
00010  *                                                                         *
00011  *   This library is distributed in the hope that it will be useful,       *
00012  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00013  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00014  *   Lesser General Public License for more details.                       *
00015  *                                                                         *
00016  *   You should have received a copy of the GNU Lesser General Public      *
00017  *   License along with this library; if not, write to the                 *
00018  *   Free Software Foundation, Inc.,                                       *
00019  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
00020  ***************************************************************************/
00021 
00022 #ifndef FIFE_EVENTCHANNEL_EVENTMANAGER_H
00023 #define FIFE_EVENTCHANNEL_EVENTMANAGER_H
00024 
00025 // Standard C++ library includes
00026 //
00027 #include <deque>
00028 #include <map>
00029 #include <list>
00030 
00031 // 3rd party library includes
00032 //
00033 
00034 // FIFE includes
00035 // These includes are split up in two parts, separated by one empty line
00036 // First block: files included from the FIFE root src directory
00037 // Second block: files included from the same folder
00038 //
00039 #include "eventchannel/command/ec_command.h"
00040 #include "eventchannel/command/ec_icommandcontroller.h"
00041 #include "eventchannel/command/ec_icommandlistener.h"
00042 
00043 #include "eventchannel/key/ec_ikeycontroller.h"
00044 #include "eventchannel/key/ec_ikeylistener.h"
00045 #include "eventchannel/key/ec_keyevent.h"
00046 #include "eventchannel/key/ec_key.h"
00047 
00048 #include "eventchannel/mouse/ec_imousecontroller.h"
00049 #include "eventchannel/mouse/ec_imouselistener.h"
00050 #include "eventchannel/mouse/ec_mouseevent.h"
00051 
00052 #include "eventchannel/sdl/ec_isdleventcontroller.h"
00053 #include "eventchannel/sdl/ec_isdleventlistener.h"
00054 
00055 #include "eventchannel/trigger/ec_itriggercontroller.h"
00056 
00057 namespace FIFE {
00058 
00059     class ICommandListener;
00060     class InputEvent;
00061     class MouseEvent;
00062     class KeyEvent;
00063     class IKeyFilter;
00064 
00067     class EventManager:
00068         public ICommandController,
00069         public IKeyController,
00070         public IMouseController,
00071         public ISdlEventController,
00072         public IEventSource,
00073         public ITriggerController {
00074     public:
00077         EventManager();
00078 
00081         virtual ~EventManager();
00082 
00083         void addCommandListener(ICommandListener* listener);
00084         void addCommandListenerFront(ICommandListener* listener);
00085         void removeCommandListener(ICommandListener* listener);
00086         void dispatchCommand(Command& command);
00087         void addKeyListener(IKeyListener* listener);
00088         void addKeyListenerFront(IKeyListener* listener);
00089         void removeKeyListener(IKeyListener* listener);
00090         void addMouseListener(IMouseListener* listener);
00091         void addMouseListenerFront(IMouseListener* listener);
00092         void removeMouseListener(IMouseListener* listener);
00093         void addSdlEventListener(ISdlEventListener* listener);
00094         void addSdlEventListenerFront(ISdlEventListener* listener);
00095         void removeSdlEventListener(ISdlEventListener* listener);
00096         EventSourceType getEventSourceType();
00097 
00098         void registerTrigger(Trigger& trigger);
00099         void unregisterTrigger(Trigger& trigger);
00100 
00105         void processEvents();
00106 
00107         void setKeyFilter(IKeyFilter* keyFilter);
00108 
00109     private:
00110         // Helpers for processEvents
00111         void processActiveEvent(SDL_Event event);
00112         void processKeyEvent(SDL_Event event);
00113         void processMouseEvent(SDL_Event event);
00114         bool combineEvents(SDL_Event& event1, const SDL_Event& event2);
00115 
00116         // Events dispatchers - only dispatchSdlevent may reject the event.
00117         bool dispatchSdlEvent(SDL_Event& evt);
00118         void dispatchKeyEvent(KeyEvent& evt);
00119         void dispatchMouseEvent(MouseEvent& evt);
00120 
00121         // Translate events
00122         void fillModifiers(InputEvent& evt);
00123         void fillKeyEvent(const SDL_Event& sdlevt, KeyEvent& keyevt);
00124         void fillMouseEvent(const SDL_Event& sdlevt, MouseEvent& mouseevt);
00125 
00126         void pollTriggers();
00127 
00128         std::deque<ICommandListener*> m_commandlisteners;
00129         std::deque<ICommandListener*> m_pending_commandlisteners;
00130         std::deque<ICommandListener*> m_pending_commandlisteners_front;
00131         std::deque<ICommandListener*> m_pending_cldeletions;
00132 
00133         std::deque<IKeyListener*> m_keylisteners;
00134         std::deque<IKeyListener*> m_pending_keylisteners;
00135         std::deque<IKeyListener*> m_pending_keylisteners_front;
00136         std::deque<IKeyListener*> m_pending_kldeletions;
00137 
00138         std::deque<IMouseListener*> m_mouselisteners;
00139         std::deque<IMouseListener*> m_pending_mouselisteners;
00140         std::deque<IMouseListener*> m_pending_mouselisteners_front;
00141         std::deque<IMouseListener*> m_pending_mldeletions;
00142 
00143         std::deque<ISdlEventListener*> m_sdleventlisteners;
00144         std::deque<ISdlEventListener*> m_pending_sdleventlisteners;
00145         std::deque<ISdlEventListener*> m_pending_sdleventlisteners_front;
00146         std::deque<ISdlEventListener*> m_pending_sdldeletions;
00147 
00148         std::map<int, bool> m_keystatemap;
00149         IKeyFilter* m_keyfilter;
00150         int m_mousestate;
00151         MouseEvent::MouseButtonType m_mostrecentbtn;
00152 
00153         std::list<Trigger*> m_triggers;
00154     };
00155 } //FIFE
00156 
00157 #endif