CAUGuiKnob.h

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/*
 *  CAUGuiKnob.h
 *  CoreGraphics AudioUnit GUI framework
 *
 *  Created by Urs Heckmann on Sun Oct 20 2002.
 *  Copyright (c) 2002 __MyCompanyName__. All rights reserved.
 *
 */
 
#ifndef __CAUGUI_KNOB__
#define __CAUGUI_KNOB__

#include "CAUGuiConfig.h"

#include "CAUGui.h"


class CAUGuiKnob : public CAUGuiCtrl
{
public:

    CAUGuiKnob          (   CAUGuiMan*              theChief,
                            CAAUParameter           &theAuvp, 
                            eRect*                  theWhere,
                            CAUGuiResolution        theRes, 
                            CAUGuiGraphic*          theForeGround, 
                            CAUGuiGraphic*          theBackground);
                            
    virtual ~CAUGuiKnob ();

    virtual void draw(CGContextRef context, UInt32 portHeight);
    virtual void mouseDown(Point *P, bool, bool);
    virtual void mouseTrack(Point *P, bool, bool);
    virtual void mouseUp(Point *P, bool, bool);
    
    virtual void setCenter ( SInt32 x, SInt32 y ) { centerX = x; centerY = y; }
    
private:

    float               getValueFromPoint(Point* P);
    
    SInt32              centerX;
    SInt32              centerY;
    
    CAUGuiGraphic*      ForeGround;
    CAUGuiGraphic*      BackGround;
    
    
};


#endif

(c) 2002 - 2003 by Urs Heckmann www.u-he.com