U++

class SliderCtrl : public Ctrl {

        int           value;

        int           min, max, step;

        bool          round_step;

        bool                  jump;

        int           SliderToClient(int value) const;

        int           ClientToSlider(int x) const;

        int           HoVe(int  x, int  y) const;

        int&          HoVeR(int& x, int& y) const;

        int           Min() const     { return Upp::min(min, max); };

        int           Max() const     { return Upp::max(min, max); };

public:

        typedef SliderCtrl CLASSNAME;

        Callback           WhenSlideFinish;

        SliderCtrl();

        virtual ~SliderCtrl();

        virtual void  Paint(Draw& draw);

        virtual bool  Key(dword key, int repcnt);

        virtual void  LeftDown(Point pos, dword keyflags);

        virtual void  LeftRepeat(Point pos, dword keyflags);

        virtual void  LeftUp(Point pos, dword keyflags);

        virtual void  MouseMove(Point pos, dword keyflags);

        virtual void  GotFocus();

        virtual void  LostFocus();

        virtual void  SetData(const Value& value);

        virtual Value GetData() const;

        void          Inc();

        void          Dec();

        SliderCtrl&   MinMax(int _min, int _max);

        SliderCtrl&   Range(int max)                  { return MinMax(0, max); }

        int           GetMin() const                  { return min; }

        int           GetMax() const                  { return max; }

        bool          IsVert() const;

        SliderCtrl&   Jump(bool v = true)                          { jump = v; return *this; }

        SliderCtrl&   Step(int _step, bool _r = true) { step = _step; round_step = _r; return *this; }

        int           GetStep() const                 { return step; }

        bool          IsRoundStep() const             { return round_step; }

};