/usr/share/doc/fltk1.3-doc/examples/mandelbrot.h is in fltk1.3-doc 1.3.2-4.
This file is owned by root:root, with mode 0o644.
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// "$Id: mandelbrot.h 8864 2011-07-19 04:49:30Z greg.ercolano $"
//
// Mandelbrot set header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2010 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#include <FL/Fl.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Slider.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Input.H>
class Drawing_Area : public Fl_Box {
void draw();
public:
uchar *buffer;
int W,H;
int nextline;
int drawn;
int julia;
int iterations;
int brightness;
double jX, jY;
double X,Y,scale;
int sx, sy, sw, sh; // selection box
void erase_box();
int handle(int);
void resize(int,int,int,int);
void new_display();
enum {
MAX_BRIGHTNESS = 16,
DEFAULT_BRIGHTNESS = 16,
MAX_ITERATIONS = 14,
DEFAULT_ITERATIONS = 7
};
Drawing_Area(int x,int y,int w,int h) : Fl_Box(x,y,w,h) {
buffer = 0;
W = w-6;
H = h-8;
nextline = 0;
drawn = 0;
julia = 0;
X = Y = 0;
scale = 4.0;
iterations = 1<<DEFAULT_ITERATIONS;
brightness = DEFAULT_BRIGHTNESS;
}
int idle();
};
//
// End of "$Id: mandelbrot.h 8864 2011-07-19 04:49:30Z greg.ercolano $".
//
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