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

#ifndef COLOR_FIELD_H
#define COLOR_FIELD_H

#include <Control.h>

#include "SelectedColorMode.h"

enum {
        MSG_COLOR_FIELD         = 'ColF',
};

class BBitmap;

class ColorField : public BControl {
public:
                                                                ColorField(BPoint offset_point,
                                                                        SelectedColorMode mode, float fixedValue,
                                                                        orientation orient = B_VERTICAL,
                                                                        border_style border = B_FANCY_BORDER);

                                                                ColorField(SelectedColorMode mode,
                                                                        float fixedValue,
                                                                        orientation orient = B_VERTICAL,
                                                                        border_style border = B_FANCY_BORDER);

        virtual                                         ~ColorField();

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

        virtual status_t                        Invoke(BMessage* message = NULL);

        virtual void                            AttachedToWindow();
        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);

        // ColorField
                        void                            SetModeAndValue(SelectedColorMode mode,
                                                                        float fixedValue);
                        void                            SetFixedValue(float fixedValue);
                        float                           FixedValue() const
                                                                        { return fFixedValue; }

                        void                            SetMarkerToColor(rgb_color color);
                        void                            PositionMarkerAt(BPoint where);

                        float                           Width() const;
                        float                           Height() const;
                        bool                            IsTracking() const
                                                                        { return fMouseDown; }

private:
                        void                            _Init(SelectedColorMode mode,
                                                                        float fixedValue, orientation orient,
                                                                        border_style border);

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

private:
        SelectedColorMode                       fMode;
        float                                           fFixedValue;
        orientation                                     fOrientation;
        border_style                            fBorderStyle;

        BPoint                                          fMarkerPosition;
        BPoint                                          fLastMarkerPosition;
        bool                                            fMouseDown;

        BBitmap*                                        fBitmap;
        bool                                            fBitmapDirty;
};

#endif // COLOR_FIELD_H