1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
//
// "$Id$"
//
// Spinner widget for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2005 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 on the following page:
//
// http://www.fltk.org/str.php
//
#ifndef Fl_Spinner_H
# define Fl_Spinner_H
//
// Include necessary headers...
//
# include <FL/Fl_Group.H>
# include <FL/Fl_Input.H>
# include <FL/Fl_Repeat_Button.H>
# include <stdio.h>
# include <stdlib.h>
//
// Fl_Spinner widget class...
//
class Fl_Spinner : public Fl_Group
{
double value_; // Current value
double minimum_; // Minimum value
double maximum_; // Maximum value
double step_; // Amount to add/subtract for up/down
const char *format_; // Format string
Fl_Input input_; // Input field for the value
Fl_Repeat_Button
up_button_, // Up button
down_button_; // Down button
static void sb_cb(Fl_Widget *w, Fl_Spinner *sb) {
double v; // New value
if (w == &(sb->input_)) {
// Something changed in the input field...
v = atof(sb->input_.value());
if (v < sb->minimum_) {
sb->value_ = sb->minimum_;
sb->update();
} else if (v > sb->maximum_) {
sb->value_ = sb->maximum_;
sb->update();
} else sb->value_ = v;
} else if (w == &(sb->up_button_)) {
// Up button pressed...
v = sb->value_ + sb->step_;
if (v > sb->maximum_) sb->value_ = sb->minimum_;
else sb->value_ = v;
sb->update();
} else if (w == &(sb->down_button_)) {
// Down button pressed...
v = sb->value_ - sb->step_;
if (v < sb->minimum_) sb->value_ = sb->maximum_;
else sb->value_ = v;
sb->update();
}
sb->do_callback();
}
void update() {
char s[255]; // Value string
sprintf(s, format_, value_);
input_.value(s);
}
public:
Fl_Spinner(int X, int Y, int W, int H, const char *L = 0)
: Fl_Group(X, Y, W, H, L),
input_(X, Y, W - H / 2 - 2, H),
up_button_(X + W - H / 2 - 2, Y, H / 2 + 2, H / 2, "@-22<"),
down_button_(X + W - H / 2 - 2, Y + H - H / 2,
H / 2 + 2, H / 2, "@-22>") {
end();
value_ = 1.0;
minimum_ = 1.0;
maximum_ = 100.0;
step_ = 1.0;
format_ = "%.0f";
align(FL_ALIGN_LEFT);
input_.value("1");
input_.type(FL_INT_INPUT);
input_.when(FL_WHEN_CHANGED);
input_.callback((Fl_Callback *)sb_cb, this);
up_button_.callback((Fl_Callback *)sb_cb, this);
down_button_.callback((Fl_Callback *)sb_cb, this);
}
const char *format() { return (format_); }
void format(const char *f) { format_ = f; update(); }
double maxinum() const { return (maximum_); }
void maximum(double m) { maximum_ = m; }
double mininum() const { return (minimum_); }
void minimum(double m) { minimum_ = m; }
void range(double a, double b) { minimum_ = a; maximum_ = b; }
void resize(int X, int Y, int W, int H) {
Fl_Group::resize(X,Y,W,H);
input_.resize(X, Y, W - H / 2 - 2, H);
up_button_.resize(X + W - H / 2 - 2, Y, H / 2 + 2, H / 2);
down_button_.resize(X + W - H / 2 - 2, Y + H - H / 2,
H / 2 + 2, H / 2);
}
double step() const { return (step_); }
void step(double s) { step_ = s; }
Fl_Color textcolor() const {
return (input_.textcolor());
}
void textcolor(Fl_Color c) {
input_.textcolor(c);
}
uchar textfont() const {
return (input_.textfont());
}
void textfont(uchar f) {
input_.textfont(f);
}
uchar textsize() const {
return (input_.textsize());
}
void textsize(uchar s) {
input_.textsize(s);
}
double value() const { return (value_); }
void value(double v) { value_ = v; update(); }
};
#endif // !Fl_Spinner_H
//
// End of "$Id$".
//
|
