Fl_Dial.H

//
// Dial header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2022 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
//
 
/* \file
   Fl_Dial widget . */
 
#ifndef Fl_Dial_H
#define Fl_Dial_H
 
#ifndef Fl_Valuator_H
#include "Fl_Valuator.H"
#endif
 
// values for type():
#define FL_NORMAL_DIAL  0       
#define FL_LINE_DIAL    1       
#define FL_FILL_DIAL    2       

class FL_EXPORT Fl_Dial : public Fl_Valuator {
 
  short a1,a2;
 
protected:
 
  // these allow subclasses to put the dial in a smaller area:
  void draw(int X, int Y, int W, int H);
  int handle(int event, int X, int Y, int W, int H);
  void draw() FL_OVERRIDE;
 
public:
 
  int handle(int) FL_OVERRIDE;
  Fl_Dial(int x,int y,int w,int h, const char *l = 0);
  short angle1() const {return a1;}
  void angle1(short a) {a1 = a;}
  short angle2() const {return a2;}
  void angle2(short a) {a2 = a;}
  void angles(short a, short b) {a1 = a; a2 = b;}
 
};
 
#endif