Fl_Color_Chooser.H

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//
// Color chooser header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2019 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file.  If this
// file is missing or damaged, see the license at:
//
//     https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
//     https://www.fltk.org/bugs.php
//
 
// 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 Fl_Color_Chooser_H
#define Fl_Color_Chooser_H
 
#include <FL/Fl_Group.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Return_Button.H>
#include <FL/Fl_Choice.H>
#include <FL/Fl_Value_Input.H>
 
#ifndef FL_DOXYGEN
 
class FL_EXPORT Flcc_HueBox : public Fl_Widget {
  int px, py;
protected:
  void draw() FL_OVERRIDE;
  int handle_key(int);
public:
  int handle(int) FL_OVERRIDE;
  Flcc_HueBox(int X, int Y, int W, int H) : Fl_Widget(X,Y,W,H) {
  px = py = 0;}
};
 
class FL_EXPORT Flcc_ValueBox : public Fl_Widget {
  int py;
protected:
  void draw() FL_OVERRIDE;
  int handle_key(int);
public:
  int handle(int) FL_OVERRIDE;
  Flcc_ValueBox(int X, int Y, int W, int H) : Fl_Widget(X,Y,W,H) {
  py = 0;}
};
 
class FL_EXPORT Flcc_Value_Input : public Fl_Value_Input {
public:
  int format(char*) FL_OVERRIDE;
  Flcc_Value_Input(int X, int Y, int W, int H) : Fl_Value_Input(X,Y,W,H) {}
};
 
#endif // !FL_DOXYGEN
 
class FL_EXPORT Fl_Color_Chooser : public Fl_Group {
  Flcc_HueBox huebox;
  Flcc_ValueBox valuebox;
  Fl_Choice choice;
  Flcc_Value_Input rvalue;
  Flcc_Value_Input gvalue;
  Flcc_Value_Input bvalue;
  Fl_Box resize_box;
  double hue_, saturation_, value_;
  double r_, g_, b_;
  void set_valuators();
  static void rgb_cb(Fl_Widget*, void*);
  static void mode_cb(Fl_Widget*, void*);
public:
 
  int handle(int e) FL_OVERRIDE;
 
  int mode() {return choice.value();}
 
  void mode(int newMode);
 
  double hue() const {return hue_;}
 
  double saturation() const {return saturation_;}
 
  double value() const {return value_;}
 
  double r() const {return r_;}
 
  double g() const {return g_;}
 
  double b() const {return b_;}
 
  int hsv(double H, double S, double V);
 
  int rgb(double R, double G, double B);
 
  static void hsv2rgb(double H, double S, double V, double& R, double& G, double& B);
 
  static void rgb2hsv(double R, double G, double B, double& H, double& S, double& V);
 
  Fl_Color_Chooser(int X, int Y, int W, int H, const char *L = 0);
};
 
FL_EXPORT int fl_color_chooser(const char* name, double& r, double& g, double& b, int m=-1);
FL_EXPORT int fl_color_chooser(const char* name, uchar& r, uchar& g, uchar& b, int m=-1);
 
#endif