Fl_Valuator.H
//
// "$Id: Fl_Valuator.H 8864 2011-07-19 04:49:30Z greg.ercolano $"
//
// Valuator 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
//
/* \file
Fl_Valuator widget . */
#ifndef Fl_Valuator_H
#define Fl_Valuator_H
#ifndef Fl_Widget_H
#include "Fl_Widget.H"
#endif
// shared type() values for classes that work in both directions:
#define FL_VERTICAL 0
#define FL_HORIZONTAL 1
class FL_EXPORT Fl_Valuator : public Fl_Widget {
double value_;
double previous_value_;
double min, max; // truncates to this range *after* rounding
double A; int B; // rounds to multiples of A/B, or no rounding if A is zero
protected:
int horizontal() const {return type()& FL_HORIZONTAL;}
Fl_Valuator(int X, int Y, int W, int H, const char* L);
double previous_value() const {return previous_value_;}
void handle_push() {previous_value_ = value_;}
double softclamp(double);
void handle_drag(double newvalue);
void handle_release(); // use drag() value
virtual void value_damage(); // cause damage() due to value() changing
void set_value(double v) {value_ = v;}
public:
void bounds(double a, double b) {min=a; max=b;}
double minimum() const {return min;}
void minimum(double a) {min = a;}
double maximum() const {return max;}
void maximum(double a) {max = a;}
void range(double a, double b) {min = a; max = b;}
void step(int a) {A = a; B = 1;}
void step(double a, int b) {A = a; B = b;}
void step(double s);
double step() const {return A/B;}
void precision(int);
double value() const {return value_;}
int value(double);
virtual int format(char*);
double round(double); // round to nearest multiple of step
double clamp(double); // keep in range
double increment(double, int); // add n*step to value
};
#endif
//
// End of "$Id: Fl_Valuator.H 8864 2011-07-19 04:49:30Z greg.ercolano $".
//
- © 1998-2012 by Bill Spitzak and others.