source: NonGTP/FLTK/include/fltk/Valuator.h @ 773

Revision 773, 2.5 KB checked in by gumbau, 19 years ago (diff)

FLTK imported to SVN repository to be linked agains the GeoTool? application

Line 
1//
2// "$Id: Valuator.h 4326 2005-05-10 03:55:14Z trilec $"
3//
4// Base class for all the widgets that control a single floating-point
5// value.
6//
7// Copyright 1998-2003 by Bill Spitzak and others.
8//
9// This library is free software; you can redistribute it and/or
10// modify it under the terms of the GNU Library General Public
11// License as published by the Free Software Foundation; either
12// version 2 of the License, or (at your option) any later version.
13//
14// This library is distributed in the hope that it will be useful,
15// but WITHOUT ANY WARRANTY; without even the implied warranty of
16// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17// Library General Public License for more details.
18//
19// You should have received a copy of the GNU Library General Public
20// License along with this library; if not, write to the Free Software
21// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22// USA.
23//
24// Please report all bugs and problems to "fltk-bugs@fltk.org".
25//
26
27#ifndef fltk_Valuator_h
28#define fltk_Valuator_h
29
30#ifndef fltk_Widget_h
31#include "Widget.h"
32#endif
33
34namespace fltk {
35
36class FL_API Valuator : public Widget {
37
38public:
39
40  double value() const {return value_;}
41  int value(double);
42
43  float minimum() const {return minimum_;}
44  void minimum(double a) {minimum_ = float(a);}
45
46  float maximum() const {return maximum_;}
47  void maximum(double a) {maximum_ = float(a);}
48
49  void range(double a, double b) {minimum_ = float(a); maximum_ = float(b);}
50
51  float step() const {return step_;}
52  void step(double a) {step_ = float(a);}
53
54  float linesize() const {return linesize_;}
55  void linesize(double a) {linesize_ = float(a);}
56
57  virtual int format(char*);
58
59  int handle(int);
60
61#ifdef FLTK_1_SLIDER
62  void step(double a, int b) {step(a/b);}
63  void bounds(double a, double b) {minimum_=float(a); maximum_=float(b);}
64  void precision(int p) {
65    int B = 1;
66    for (int i=0; i<p; i++) B *= 10;
67    step_ = 1.0f/B;
68  }
69#endif
70
71//protected:
72
73  Valuator(int X, int Y, int W, int H, const char* L);
74  double previous_value() const {return previous_value_;}
75  void handle_push() {previous_value_ = value_;}
76  void handle_drag(double newvalue);
77  void handle_release();
78
79  virtual void value_damage(); // callback whenever value changes
80  void set_value(double v) {value_ = v;} // change w/o doing value_damage
81
82private:
83
84  double value_;
85  static double previous_value_;
86  float minimum_;
87  float maximum_;
88  float step_;
89  float linesize_;
90
91};
92
93}
94
95#endif
96
97//
98// End of "$Id: Valuator.h 4326 2005-05-10 03:55:14Z trilec $".
99//
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