mouse_event.h

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/*
 * Software License Agreement (BSD License)
 *
 *  Point Cloud Library (PCL) - www.pointclouds.org
 *  Copyright (c) 2011, Willow Garage, Inc.
 *
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 *     copyright notice, this list of conditions and the following
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 *     with the distribution.
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 *     from this software without specific prior written permission.
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 * Author: Suat Gedikli (gedikli@willowgarage.com)
 *
 */

#ifndef PCL_VISUALIZATION_MOUSE_EVENT_H_
#define PCL_VISUALIZATION_MOUSE_EVENT_H_

#include "keyboard_event.h"

namespace pcl
{
  namespace visualization
  {
    class MouseEvent
    {
      public:
        typedef enum
        {
          MouseMove = 1,
          MouseButtonPress,
          MouseButtonRelease,
          MouseScrollDown,
          MouseScrollUp,
          MouseDblClick
        } Type;

        typedef enum
        {
          NoButton      = 0,
          LeftButton,
          MiddleButton,
          RightButton,
          VScroll /*other buttons, scroll wheels etc. may follow*/
        } MouseButton;

        inline MouseEvent (const Type& type, const MouseButton& button, 
                           unsigned int x, unsigned int y, 
                           bool alt, bool ctrl, bool shift);

        inline const Type& 
        getType () const;

        inline void 
        setType (const Type& type);
        
        inline const MouseButton& 
        getButton () const;

        inline void 
        setButton (const MouseButton& button);

        inline unsigned int 
        getX () const;

        inline unsigned int 
        getY () const;

        inline unsigned int 
        getKeyboardModifiers () const;

      protected:
        Type type_;
        MouseButton button_;
        unsigned int pointer_x_;
        unsigned int pointer_y_;
        unsigned int key_state_;
    };

    MouseEvent::MouseEvent (const Type& type, const MouseButton& button,
                            unsigned x, unsigned y, 
                            bool alt, bool ctrl, bool shift)
    : type_ (type)
    , button_ (button)
    , pointer_x_ (x)
    , pointer_y_ (y)
    , key_state_ (0)
    {
      if (alt)
        key_state_ = KeyboardEvent::Alt;

      if (ctrl)
        key_state_ |= KeyboardEvent::Ctrl;

      if (shift)
        key_state_ |= KeyboardEvent::Shift;
    }

    const MouseEvent::Type& 
    MouseEvent::getType () const
    {
      return (type_);
    }

    void 
    MouseEvent::setType (const Type& type)
    {
      type_ = type;
    }
    
    const MouseEvent::MouseButton& 
    MouseEvent::getButton () const
    {
      return (button_);
    }

    void 
    MouseEvent::setButton (const MouseButton& button)
    {
      button_ = button;
    }
    
    unsigned int 
    MouseEvent::getX () const
    {
      return (pointer_x_);
    }

    unsigned int 
    MouseEvent::getY () const
    {
      return (pointer_y_);
    }

    unsigned int 
    MouseEvent::getKeyboardModifiers () const
    {
      return (key_state_);
    }

  } //namespace visualization
} //namespace pcl

#endif  /* PCL_VISUALIZATION_MOUSE_EVENT_H_ */