text: //
  // "$Id: ColorChooser.h 5197 2006-06-14 07:43:46Z spitzak $"
  //
  // Color chooser header file for the Fast Light Tool Kit (FLTK).
  //
  // Copyright 1998-2006 by Bill Spitzak and others.
  //
  // This library is free software; you can redistribute it and/or
  // modify it under the terms of the GNU Library General Public
  // License as published by the Free Software Foundation; either
  // version 2 of the License, or (at your option) any later version.
  //
  // This library is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  // Library General Public License for more details.
  //
  // You should have received a copy of the GNU Library General Public
  // License along with this library; if not, write to the Free Software
  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  // USA.
  //
  // Please report all bugs and problems to "fltk-bugs@fltk.org".
  //
  
  // The color chooser object and the color chooser popup.  The popup
  // is just a window containing a single color chooser and some boxes
  // to indicate the current and cancelled color.
  
  #ifndef fltk_ColorChooser_h
  #define fltk_ColorChooser_h
  
  #include "Group.h"
  
  namespace fltk {
  
  class FL_API ccHueBox : public Widget {
    int px, py;
  protected:
    void draw();
  public:
    int handle(int);
    ccHueBox(int X, int Y, int W, int H) : Widget(X,Y,W,H) {
    px = py = 0;}
  };
  
  class FL_API ccValueBox : public Widget {
    int py;
    bool is_alpha() const;
  protected:
    void draw();
  public:
    int handle(int);
    ccValueBox(int X, int Y, int W, int H) : Widget(X,Y,W,H) {
    py = 0;}
  };
  
  class FL_API ccCellBox : public Widget {
  public:
    ccCellBox(int X, int Y, int W, int H) : Widget(X,Y,W,H) {}
    void draw();
    int handle(int);
  };
  
  class FL_API ColorChooser : public Group {
    friend class ccHueBox;
    friend class ccValueBox;
    friend class ccCellBox;
    ccHueBox huebox;
    ccValueBox valuebox;
    ccValueBox alphabox;
    ccCellBox cellbox;
    float hue_, saturation_, value_;
    float r_, g_, b_, a_;
    bool no_value_;
    bool support_no_value;
  public:
    float h() const {return hue_;}
    float s() const {return saturation_;}
    float v() const {return value_;}
    float r() const {return r_;}
    float g() const {return g_;}
    float b() const {return b_;}
    float a() const {return a_;}
    bool no_value() const {return no_value_;}
    bool no_value(bool);
    Color value() const;
    bool value(Color);
    bool hsv(float,float,float);
    bool rgb(float,float,float);
    bool a(float);
    void hide_a();
    void hide_no_value() {support_no_value = false;}
    static void hsv2rgb(float, float, float,float&,float&,float&);
    static void rgb2hsv(float, float, float,float&,float&,float&);
    ColorChooser(int,int,int,int,const char* = 0);
    void layout();
    float setcell(int,float,float,float,float);
    float getcell(int,float,float,float,float);
  };
  
  // Convience functions to pop-up a control panel:
  
  FL_API bool color_chooser(const char* name, float& r, float& g, float& b);
  FL_API bool color_chooser(const char* name, float& r, float& g, float& b, float& a);
  FL_API bool color_chooser(const char* name, uchar& r, uchar& g, uchar& b);
  FL_API bool color_chooser(const char* name, uchar& r, uchar& g, uchar& b, uchar& a);
  FL_API bool color_chooser(const char* name, Color& c);
  
  }
  
  #endif
  
  //
  // End of "$Id: ColorChooser.h 5197 2006-06-14 07:43:46Z spitzak $".
  //
  