Fl_Chart.H

Go to the documentation of this file.

//
// Fl_Chart widget header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2023 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
//
 
#ifndef Fl_Chart_H
#define Fl_Chart_H
 
#ifndef Fl_Widget_H
#include "Fl_Widget.H"
#endif
 
// values for type()
#define FL_BAR_CHART            0     
#define FL_HORBAR_CHART         1     
#define FL_LINE_CHART           2     
#define FL_FILL_CHART           3     
#define FL_SPIKE_CHART          4     
#define FL_PIE_CHART            5     
#define FL_SPECIALPIE_CHART     6     
 
#define FL_FILLED_CHART FL_FILL_CHART 
 
#define FL_CHART_MAX          128     
#define FL_CHART_LABEL_MAX     18     
 
struct FL_CHART_ENTRY {
  float val;                        
  unsigned col;                     
  char str[FL_CHART_LABEL_MAX + 1]; 
};
 
class FL_EXPORT Fl_Chart : public Fl_Widget {
  int numb;
  int maxnumb;
  int sizenumb;
  FL_CHART_ENTRY *entries;
  double min, max;
  uchar autosize_;
  Fl_Font textfont_;
  Fl_Fontsize textsize_;
  Fl_Color textcolor_;
 
protected:
  void draw() FL_OVERRIDE;
 
  // (static) protected draw methods (STR 2022)
  // these methods are documented in src/Fl_Chart.cxx
 
  static void draw_barchart(int x, int y, int w, int h, int numb, FL_CHART_ENTRY entries[],
                            double min, double max, int autosize, int maxnumb, Fl_Color textcolor);
 
  static void draw_horbarchart(int x, int y, int w, int h, int numb, FL_CHART_ENTRY entries[],
                               double min, double max, int autosize, int maxnumb,
                               Fl_Color textcolor);
 
  static void draw_linechart(int type, int x, int y, int w, int h, int numb,
                             FL_CHART_ENTRY entries[], double min, double max, int autosize,
                             int maxnumb, Fl_Color textcolor);
 
  static void draw_piechart(int x, int y, int w, int h, int numb, FL_CHART_ENTRY entries[],
                            int special, Fl_Color textcolor);
 
public:
  Fl_Chart(int X, int Y, int W, int H, const char *L = 0);
 
  ~Fl_Chart();
 
  void clear();
 
  void add(double val, const char *str = 0, unsigned col = 0);
 
  void insert(int ind, double val, const char *str = 0, unsigned col = 0);
 
  void replace(int ind, double val, const char *str = 0, unsigned col = 0);
 
  void bounds(double *a, double *b) const {
    *a = min;
    *b = max;
  }
 
  void bounds(double a, double b);
 
  int size() const { return numb; }
 
  void size(int W, int H) { Fl_Widget::size(W, H); }
 
  int maxsize() const { return maxnumb; }
 
  void maxsize(int m);
 
  Fl_Font textfont() const { return textfont_; }
 
  void textfont(Fl_Font s) { textfont_ = s; }
 
  Fl_Fontsize textsize() const { return textsize_; }
 
  void textsize(Fl_Fontsize s) { textsize_ = s; }
 
  Fl_Color textcolor() const { return textcolor_; }
 
  void textcolor(Fl_Color n) { textcolor_ = n; }
 
  uchar autosize() const { return autosize_; }
 
  void autosize(uchar n) { autosize_ = n; }
};
 
#endif