root/libcore/MouseButtonState.h

INCLUDED FROM

// Thatcher Ulrich <tu@tulrich.com> 2003

// This source code has been donated to the Public Domain.  Do
// whatever you want with it.


#ifndef GNASH_MOUSE_BUTTON_STATE_H
#define GNASH_MOUSE_BUTTON_STATE_H

#include "InteractiveObject.h" 

// Forward declarations
namespace gnash {
        class MovieClip;
}

namespace gnash {

/// Helper to generate mouse events, given mouse state & history.
struct MouseButtonState
{

public:

        /// entity that currently owns the mouse pointer
        InteractiveObject* activeEntity;

        /// what's underneath the mouse right now
        InteractiveObject* topmostEntity;

        /// previous state of mouse button
        bool wasDown;   

        /// current state of mouse button
        bool isDown;    

        /// whether mouse was inside the active_entity last frame
        bool wasInsideActiveEntity;

        MouseButtonState()
                :
        activeEntity(0),
        topmostEntity(0),
                wasDown(false),
                isDown(false),
                wasInsideActiveEntity(false)
        {
        }

        /// Mark reachable objects (active and topmost entities)
        void markReachableResources() const {
                if (activeEntity) activeEntity->setReachable();
                if (topmostEntity) topmostEntity->setReachable();
        }
};

}       // end namespace gnash


#endif // GNASH_MOUSE_BUTTON_STATE_H


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