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#ifndef _PROPGADGET
#define _PROPGADGET
#include "layout.h"
#include <Control.h>
#include <Bitmap.h>
class IMPEXPLIBLAYOUT PropGadget;
typedef void (*propgadget_hook)(PropGadget*, void*, double, double);
#if __POWERPC__
#pragma simple_class_byval off
#endif
class PropGadget : public MView, public BControl
{
public: PropGadget(double xprop, double xval, double yprop, double yval,
BBitmap *knobimage=NULL,
propgadget_hook=NULL,
void *callbackarg=NULL,
long extraspacing=0);
PropGadget(BMessage*);
virtual ~PropGadget();
virtual long Archive(BMessage *archive, bool deep=true) const;
static BArchivable *Instantiate(BMessage *archive);
BBitmap* Pknob;
virtual void Draw(BRect);
virtual void AttachedToWindow();
virtual void DetachedFromWindow();
virtual void MouseDown(BPoint);
void SetProportion(double, double);
void SetProportionNoDraw(double,double);
virtual void SetValues(double,double);
void SetValuesNoDraw(double,double);
virtual void FrameResized(float,float);
void ReDraw();
inline double Hval() {return hval;}
inline double Vval() {return 1.0-vval;}
virtual minimax layoutprefs();
virtual BRect layout(BRect rect);
virtual void setcolor(rgb_color col, bool deep=false);
virtual void DrawContainer(BRect);
virtual void DrawKnob(BRect);
virtual void KeyDown(const char *bytes, int32 numbytes);
bool IsBusy();
private: virtual void _expansionpropgadget1();
virtual void _expansionpropgadget2();
thread_id mousethread;
BPoint clickpoint;
BRect lastknobrect;
bool _isbusy;
bool vertical;
bool horizontal;
double hprop;
double hval;
double vprop;
double vval;
void (*callback)(PropGadget*,void*,double,double);
void *callbackarg;
long borderspacing;
static long _mousetracker(void *arg);
void _MouseTracker();
uint32 _expansiondata[2];
};
#endif
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