ctrl_radialslider.hpp

/*****************************************************************************
 * ctrl_radialslider.hpp
 *****************************************************************************
 * Copyright (C) 2003 the VideoLAN team
 * $Id: ctrl_radialslider.hpp 12053 2005-08-06 23:38:31Z asmax $
 *
 * Authors: Cyril Deguet     <[email protected]>
 *          Olivier Teulière <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

#ifndef CTRL_RADIALSLIDER_HPP
#define CTRL_RADIALSLIDER_HPP

#include "ctrl_generic.hpp"
#include "../utils/fsm.hpp"
#include "../utils/observer.hpp"


class GenericBitmap;
class OSGraphics;
class VarPercent;


class CtrlRadialSlider: public CtrlGeneric, public Observer<VarPercent>
{
    public:
        CtrlRadialSlider( intf_thread_t *pIntf, const GenericBitmap &rBmpSeq,
                          int numImg, VarPercent &rVariable, float minAngle,
                          float maxAngle, const UString &rHelp,
                          VarBool *pVisible );

        virtual ~CtrlRadialSlider();

        virtual void handleEvent( EvtGeneric &rEvent );

        virtual bool mouseOver( int x, int y ) const;

        virtual void draw( OSGraphics &rImage, int xDest, int yDest );

        virtual string getType() const { return "radial_slider"; }

    private:
        FSM m_fsm;
        int m_numImg;
        VarPercent &m_rVariable;
        float m_minAngle, m_maxAngle;
        int m_position;
        int m_width, m_height;
        EvtGeneric *m_pEvt;
        OSGraphics *m_pImgSeq;
        int m_lastPos;

        DEFINE_CALLBACK( CtrlRadialSlider, UpDown )
        DEFINE_CALLBACK( CtrlRadialSlider, DownUp )
        DEFINE_CALLBACK( CtrlRadialSlider, Move )

        virtual void onUpdate( Subject<VarPercent> &rVariable );

        void setCursor( int posX, int posY, bool blocking );
};


#endif

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