/*
 * Copyright 2010, Axel Dörfler, axeld@pinc-software.de.
 * Distributed under the terms of the MIT License.
 */
#ifndef RADIO_VIEW_H
#define RADIO_VIEW_H


#include <View.h>


class BMessageRunner;


class RadioView : public BView {
public:
                                                                RadioView(BRect frame, const char* name,
                                                                        int32 resizingMode);
        virtual                                         ~RadioView();

                        void                            SetPercent(int32 percent);
                        void                            SetMax(int32 max);

                        void                            StartPulsing();
                        void                            StopPulsing();
                        bool                            IsPulsing() const
                                                                        { return fPulse != NULL; }

        static  void                            Draw(BView* view, BRect rect, int32 percent,
                                                                        int32 count);
        static  int32                           DefaultMax();

protected:
        virtual void                            AttachedToWindow();
        virtual void                            DetachedFromWindow();

        virtual void                            MessageReceived(BMessage* message);
        virtual void                            Draw(BRect updateRect);
        virtual void                            FrameResized(float width, float height);

private:
                        void                            _RestartPulsing();

        static  void                            _Compute(const BRect& bounds, BPoint& center,
                                                                        int32& count, int32 max, float& step);
        static  void                            _DrawBow(BView* view, int32 index,
                                                                        const BPoint& center, int32 count,
                                                                        float step);
        static  void                            _SetColor(BView* view, int32 percent,
                                                                        int32 phase, int32 index, int32 count);
        static  bool                            _IsDisabled(int32 percent, int32 index,
                                                                        int32 count);

private:
                        int32                           fPercent;
                        BMessageRunner*         fPulse;
                        int32                           fPhase;
                        int32                           fMax;
};


#endif  // RADIO_VIEW_H