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/*===========================================================================*\
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/*===========================================================================*\
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//
// C++ Interface: Basic Interface for keyboard events received from the examiner widget
//
// Description: 
//
//
// Author: Jan Moebius <moebius@informatik.rwth-aachen.de>, (C) 2007



#ifndef KEYINTERFACE_HH 
#define KEYINTERFACE_HH 

#include <QtGui>
 
 /** \brief Interface class for plugins which have to react on keyboard  events
  * 
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  * Using this interface you can react on key events. You first have to register
  * a key (or key combination). For each registered key you will receive a keyEvent when
  * the key was pressed and a keyReleaseEvent when the key was released.
  *
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  * See our tutorial \ref ex3 for an example of how to use mouse and keyboard events
  * within a plugin.
  *
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  */ 
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class KeyInterface {
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   signals:
      /**  \brief Register a key-combination for your plugin
       * 
       * To obtain key events from the viewer for a certain key-combination, you have
       * to register that combination first
       *
       * @param _key the key that should be registered
       * @param _modifiers the keyboard modifiers
       * @param _description a short description about the functionality
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       * @param _multiUse can the key additionally be registered by another plugin
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       */
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      virtual void registerKey(int /*_key*/, Qt::KeyboardModifiers /*_modifiers*/, QString /*_description*/, bool /*_multiUse*/ = false) {};
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   public slots :
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      /**  \brief Key Event from Main App
       * 
       * This slot is called if a key event occured in the Viewer 
       * @param _event Keyevent
      */
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      virtual void slotKeyEvent( QKeyEvent* /*_event*/ ) {};
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      /**  \brief Key Release Event from Main App
       * 
       * This slot is called if a key release event occured in the Viewer 
       * @param _event Keyevent
      */
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      virtual void slotKeyReleaseEvent( QKeyEvent* /*_event*/ ) {};
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   public : 
       
      /// Destructor
      virtual ~KeyInterface() {};
      
};

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Q_DECLARE_INTERFACE(KeyInterface,"OpenFlipper.KeyInterface/1.1")
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#endif // KEYINTERFACE_HH