TGColorPalette

    protected:

      virtual void DoRedraw()
              void DrawFocusHilite(Int_t onoff)
      virtual void GotFocus()
      virtual void LostFocus()

    public:

                          TGColorPalette(const TGWindow* p = 0, Int_t cols = 8, Int_t rows = 8, Int_t id = -1)
                          TGColorPalette(const TGColorPalette&)
                  virtual ~TGColorPalette()
           static TClass* Class()
             virtual void ColorSelected(Pixel_t col = 0)
                  Pixel_t GetColorByIndex(Int_t ix) const
                  Pixel_t GetCurrentColor() const
      virtual TGDimension GetDefaultSize() const
           virtual Bool_t HandleButton(Event_t* event)
           virtual Bool_t HandleKey(Event_t* event)
           virtual Bool_t HandleMotion(Event_t* event)
          virtual TClass* IsA() const
                     void SetCellSize(Int_t w = 20, Int_t h = 17)
                     void SetColor(Int_t ix, Pixel_t color)
                     void SetColors(Pixel_t* colors)
                     void SetCurrentCellColor(Pixel_t color)
             virtual void ShowMembers(TMemberInspector& insp, char* parent)
             virtual void Streamer(TBuffer& b)
                     void StreamerNVirtual(TBuffer& b)

    protected:

         Int_t fCx      x coordinate of currently selected color cell
         Int_t fCy      y coordinate of currently selected color cell
        UInt_t fCw      color cell width
        UInt_t fCh      color cell height
         Int_t fRows    number of color cell rows
         Int_t fCols    number of color cell columns
      Pixel_t* fPixels  pixel value of colors
          TGGC fDrawGC  graphics context used for drawing

Class Description

                                                                      
 TGColorPalette, TGColorPick and TGColorDialog.                       
                                                                      
 The TGColorPalette is a widget showing an matrix of color cells. The 
 colors can be set and selected.                                      
                                                                      
 The TGColorPick is a widget which allows a color to be picked from   
 HLS space. It consists of two elements: a color map window from      
 where the user can select the hue and saturation level of a color,   
 and a slider to select color's lightness.                            
                                                                      
 Selecting a color in these two widgets will generate the event:      
 kC_COLORSEL, kCOL_CLICK, widget id, 0.                               
 and the signal:                                                      
 ColorSelected(Pixel_t color)                                         
                                                                      
 The TGColorDialog presents a full featured color selection dialog.   
 It uses 2 TGColorPalette's and the TGColorPick widgets.              
                                                                      

 TGColorPalette widget: this is just a grid of color cells of the
 specified size. Colors can be selected by clicking on them or by
 using the arrow keys.

 Destructor.

 Handle button events in color palette

 Handle mouse motion events in color palette.

 Handle keyboard events in color palette.

 Set color entries in color samples.

 Set color at index ix of color entries.

 Set current cell color.

 Set color cell size.

 Return currently selected color value.

 Redraw color palette.

 Add keyboard input.

 Remove keyboard input.

 Draw a highlight rectangle around cell obtaining focus.