Interface of SDL_ColorScale

const
{$IFDEF PAIDVERS}
  SDLVersionInfo = 'colorscale_r1200_full';
  IsLightEd = false;
{$ELSE}
  SDLVersionInfo = 'colorscale_r1200_lighted';
  IsLightEd = true;
{$ENDIF}
  Release = 1200;


type
  TMouseMoveInColorScaleEvent = procedure (Sender: TObject; InScale: boolean;
                                      Shift: TShiftState;
                                      rMousePos: double) of object;
  TColScaleOrientation = (csoHorizontal, csoVertical);
  TRenderEvent = procedure (Sender: TObject; Canvas: TCanvas) of object;
  TColorScale = class (TCustomControl)
           private
             FFrameSt        : TFrameStyle;
             FCaption        : string;
             FCaptColor      : TColor;
             FCaptPosX       : integer;
             FCaptPosY       : integer;
             FCaptSize       : integer;
             FCaptStyle      : TFontStyles;
             FSuppressPaint  : boolean;
             FColSclMin      : double;
             FColSclMax      : double;
             FCrossHair      : TCrossHair;
             FExtendColors   : boolean;
             FLeftButWasDown : boolean;
             FMarginTop      : integer;
             FMarginBottom   : integer;
             FMarginLeft     : integer;
             FMarginRight    : integer;
             FMouseAction    : TMouseActMode;
             FMouseAnchorX   : integer;
             FMouseAnchorY   : integer;
             FAnchorSclLow   : double;
             FAnchorSclHigh  : double;
             FZoomPanMode    : TZoomPanMode;
             FFramedColors   : boolean;
             FColorLow       : double;
             FColorHigh      : double;
             FColScaleOrient : TColScaleOrientation;
             FColorSclBkgd   : TColor;
             FColorScale     : TColor;
             FColBlackLine   : TColor;               { colors to draw the frame }
             FColGrayLine    : TColor;                            { -"- }
             FColWhiteLine   : TColor;                            { -"- }
             FColorScheme    : TColorScheme;           { color scheme of frames }
             FOnMMvInScale   : TMouseMoveInColorScaleEvent;
             FOnCrossHMove   : TNotifyEvent;
             FOnDataRendered : TRenderEvent;
             FOnZoomPan      : TZoomPanEvent;
             FScale          : TScale;
             FGrafBmp        : TBitMap;
             function  GetCrossHair: TCrossHair;
             function  GetMinTicks: integer;
             procedure SetCrossHair (ch: TCrossHair);
             procedure SetColorScheme (Value: TColorScheme);
             procedure SetColorSclBkgd (Value: TColor);
             procedure SetColorScale (Value: TColor);
             procedure SetFrameStyle (value: TFrameStyle);
             procedure SetCaptStyles (Value: TFontStyles);
             procedure SetCaption (Value: string);
             procedure SetCaptColor (Value: TColor);
             procedure SetCaptPosX (Value: integer);
             procedure SetCaptPosY (Value: integer);
             procedure SetCaptSize (Value: integer);
             procedure SetMarginTop (Value: integer);
             procedure SetMarginBottom (Value: integer);
             procedure SetMarginLeft (Value: integer);
             procedure SetMarginRight (Value: integer);
             procedure SetMinTicks (Value: integer);
             procedure SetColSclMin (value: double);
             procedure SetColSclMax (value: double);
             procedure SetColorLow (value: double);
             procedure SetColorHigh (value: double);
             procedure SetColScaleOrientation (value: TColScaleOrientation);
             procedure SetScaleDims;
             procedure SetExtColors (value: boolean);
             procedure SetFramedColors (value: boolean);
             procedure SetSuppPaint (value: boolean);
             procedure WMMouseMoveInScale (var Message: TWMMouse);
                          message WM_MOUSEMOVE;
           protected
             procedure ColorArrayChange(Sender: TObject);
             procedure AssignTo (Dest: TPersistent); override;
             procedure MouseMove (Shift: TShiftState; X,Y: integer); override;
             procedure MouseDown (Button: TMouseButton;
                                  Shift: TShiftState; X, Y: Integer); override;
             procedure Paint; override;
             procedure DoCrossHMoveEvent (WhichCH: TCrossHair);
             procedure DoZoomPanEvent;
             procedure MouseMoveInScale (InScale: boolean; Shift: TShiftState;
                                         RMousePos: double);
           public
             ColorArray: TColorArray;
             procedure   Assign(Source: TPersistent); override;
             constructor Create(AOwner: TComponent); override;
             destructor  Destroy; override;
             procedure SetBounds (ALeft, ATop, AWidth, AHeight: Integer); override;
             procedure SetScaleRange (lowval, highval: double);
             property  SuppressPaint: boolean
                         read FSuppressPaint write SetSuppPaint;
             function  ColorToValue (cl: TColor): double;
             procedure CopyToBitMap (ABitmap: TBitMap; PosX, PosY: integer);
             function  ValueToColor (v: double): TColor;
             function  ValueToPixel (v: double): integer;
           published
             property Align;
             property Anchors;
             property Caption: string read FCaption write SetCaption;
             property CaptionColor: TColor read FCaptColor write SetCaptColor;
             property CaptionPosX: integer 
                         read FCaptPosX write SetCaptPosX default 10;
             property CaptionPosY: integer 
                         read FCaptPosY write SetCaptPosY default 10;
             property CaptionSize: integer 
                         read FCaptSize write SetCaptSize default 12;
             property CaptionStyle: TFontStyles
                         read FCaptStyle write SetCaptStyles;
             property ColorSclBkgd: TColor
                         read FColorSclBkgd write SetColorSclBkgd;
             property ColorOfScale: TColor read FColorScale write SetColorScale;
             property ColorScheme: TColorScheme
                         read FColorScheme write SetColorScheme;
             property CrossHair: TCrossHair read GetCrossHair write SetCrossHair;
             property Font;
             property FrameStyle: TFrameStyle
                         read FFrameSt write SetFrameStyle;
             property ScaleRangeHigh: double read FColSclMax write SetColSclMax;
             property ScaleRangeLow: double read FColSclMin write SetColSclMin;
             property ExtendColors: boolean read FExtendColors write SetExtColors;
             property FramedColorScale: boolean
                         read FFramedColors write SetFramedColors;
             property ColorHigh: double read FColorHigh write SetColorHigh;
             property ColorLow: double read FColorLow write SetColorLow;
             property MarginTop: integer read FMarginTop write SetMarginTop;
             property MarginBottom: integer
                         read FMarginBottom write SetMarginBottom;
             property MarginLeft: integer read FMarginLeft write SetMarginLeft;
             property MarginRight: integer read FMarginRight write SetMarginRight;
             property MinTicks: integer read GetMinTicks write SetMinTicks;
             property MouseAction: TMouseActMode
                         read FMouseAction write FMouseAction;
             property Orientation: TColScaleOrientation
                         read FColScaleOrient write SetColScaleOrientation;
             property ParentFont;
             property ParentShowHint;
             property PopupMenu;
             property ShowHint;
{$IFDEF GE_LEV17}
             property StyleElements;
{$ENDIF}
             property Visible;
             property OnClick;
             property OnCrossHairMove: TNotifyEvent
                         read FOnCrossHMove write FOnCrossHMove;
             property OnDataRendered: TRenderEvent
                         read FOnDataRendered write FOnDataRendered;
             property OnDblClick;
             property OnMouseMove;
             property OnMouseDown;
             procedure MouseUp (Button: TMouseButton;
                                Shift: TShiftState; X, Y: Integer); override;
             property OnMouseMoveInScale: TMouseMoveInColorScaleEvent
                         read FOnMMvInScale write FOnMMvInScale;
             property OnMouseWheel;
             property OnMouseWheelUp;
             property OnMouseWheelDown;
             property OnZoomPan: TZoomPanEvent
                         read FOnZoomPan write FOnZoomPan;
             property OnKeyPress;
             property OnKeyDown;
             property OnKeyUp;
           end;


procedure Register;