CEGUITask.h

/***********************************************************************
filename:       CEGUITask.h
created:        12-5-07
author:         Jonathan Welch (Kokoro-Sama)
*************************************************************************/
/***************************************************************************
*   Copyright (C) 2004 - 2006 Paul D Turner & The CEGUI Development Team
*
*   Permission is hereby granted, free of charge, to any person obtaining
*   a copy of this software and associated documentation files (the
*   "Software"), to deal in the Software without restriction, including
*   without limitation the rights to use, copy, modify, merge, publish,
*   distribute, sublicense, and/or sell copies of the Software, and to
*   permit persons to whom the Software is furnished to do so, subject to
*   the following conditions:
*
*   The above copyright notice and this permission notice shall be
*   included in all copies or substantial portions of the Software.
*
*   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
*   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
*   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
*   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
*   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
*   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
*   OTHER DEALINGS IN THE SOFTWARE.
***************************************************************************/

#ifndef _CEGUITask_h_
#define _CEGUITask_h_

#include "CEGUIBase.h"

class CEGUIEXPORT Task
{
public:
        Task(bool destroy = true):d_destroyOnComplete(destroy);
        ~Task();

        virtual bool run(float elapsed) = 0;

protected:
        bool d_destroyOnComplete; 

};

class CEGUIEXPORT WidgetFadeTask : public Task
{
public:

        enum eFadeDirection
        {
                FADEDIR_IN = 0,
                FADEDIR_OUT = 1
        }

        WidgetFadeTask(Window* widget,eFadeDirection fadedir, float targetalpha, bool destroy = true):Task(destroy){};

        virtual bool run(float elapsed);

protected:
        eFadeDirection  d_fadeDirection; 
        float                   d_targetAlpha; 
        Window*                 d_widget;
};

#endif