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// "$Id: Valuator.h 5956 2007-10-17 19:57:31Z spitzak $"
//
// Copyright 1998-2006 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
#ifndef fltk_Valuator_h
#define fltk_Valuator_h
#ifndef fltk_Widget_h
#include "Widget.h"
#endif
namespace fltk {
class FL_API Valuator : public Widget {
public:
double value() const {return value_;}
bool value(double);
double minimum() const {return minimum_;}
void minimum(double a) {minimum_ = a;}
double maximum() const {return maximum_;}
void maximum(double a) {maximum_ = a;}
void range(double a, double b) {minimum_ = a; maximum_ = b;}
double step() const {return step_;}
void step(double a) {step_ = a;}
double linesize() const;
void linesize(double a) {linesize_ = a;}
double linesize_setting() const {return linesize_;}
virtual int format(char*);
int handle(int);
#ifdef FLTK_1_SLIDER
void step(double a, int b) {step(a/b);}
void bounds(double a, double b) {minimum_=a; maximum_=b;}
void precision(int p) {
int B = 1;
for (int i=0; i<p; i++) B *= 10;
step_ = 1.0f/B;
}
#endif
//protected:
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_;}
void handle_drag(double newvalue);
void handle_release();
virtual void value_damage(); // callback whenever value changes
void set_value(double v) {value_ = v;} // change w/o doing value_damage
private:
double value_;
static double previous_value_;
double minimum_;
double maximum_;
double step_;
double linesize_;
};
}
#endif
// End of "$Id: Valuator.h 5956 2007-10-17 19:57:31Z spitzak $".
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