/*
 * Copyright 2001 Werner Freytag - please read to the LICENSE file
 *
 * Copyright 2002-2006, Stephan Aßmus <superstippi@gmx.de>
 * All rights reserved.
 *
 */

#ifndef COLOR_SLIDER_H
#define COLOR_SLIDER_H

#include <Control.h>

#include "SelectedColorMode.h"

#define MSG_COLOR_SLIDER        'ColS'

class BBitmap;

class ColorSlider : public BControl {
public:
                                                                ColorSlider(SelectedColorMode mode,
                                                                        float value1, float value2,
                                                                        orientation dir = B_VERTICAL,
                                                                        border_style border = B_FANCY_BORDER);
                                                                ColorSlider(BPoint offsetPoint,
                                                                        SelectedColorMode mode,
                                                                        float value1, float value2,
                                                                        orientation dir = B_VERTICAL,
                                                                        border_style border = B_FANCY_BORDER);
        virtual                                         ~ColorSlider();

                                                                // BControl
        virtual BSize                           MinSize();
        virtual BSize                           PreferredSize();
        virtual BSize                           MaxSize();

        virtual void                            AttachedToWindow();

        virtual status_t                        Invoke(BMessage* message = NULL);

        virtual void                            Draw(BRect updateRect);
        virtual void                            FrameResized(float width, float height);

        virtual void                            MouseDown(BPoint where);
        virtual void                            MouseUp(BPoint where);
        virtual void                            MouseMoved(BPoint where, uint32 code,
                                                                                   const BMessage* dragMessage);

        virtual void                            SetValue(int32 value);

        // ColorSlider
                        bool                            IsTracking() const
                                                                        { return fMouseDown; }

                        void                            SetModeAndValues(SelectedColorMode mode,
                                                                        float value1, float value2);
                        void                            SetOtherValues(float value1, float value2);
                        void                            GetOtherValues(float* value1,
                                                                        float* value2) const;

                        void                            SetMarkerToColor(rgb_color color);

private:
                        void                            _Init(SelectedColorMode mode,
                                                                        float value1, float value2,
                                                                        orientation dir, border_style border);

                        void                            _AllocBitmap(int32 width, int32 height);
                        void                            _Update();
                        BRect                           _BitmapRect() const;
                        void                            _FillBitmap(BBitmap* bitmap,
                                                                        SelectedColorMode mode,
                                                                        float fixedValue1, float fixedValue2,
                                                                        orientation orient) const;

        static  inline void                     _DrawColorLineY(uint8* bits, int width,
                                                                        int r, int g, int b);
        static  inline void                     _DrawColorLineX(uint8* bits, int height,
                                                                        int bpr, int r, int g, int b);
                        void                            _DrawTriangle(BPoint point1, BPoint point2,
                                                                        BPoint point3);

                        void                            _TrackMouse(BPoint where);

private:
        SelectedColorMode                       fMode;
        float                                           fFixedValue1;
        float                                           fFixedValue2;

        bool                                            fMouseDown;

        BBitmap*                                        fBitmap;
        bool                                            fBitmapDirty;

        orientation                                     fOrientation;
        border_style                            fBorderStyle;
};

#endif // COLOR_SLIDER_H