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
use direction::Direction;
use event::{Event, EventResult, Key, MouseButton, MouseEvent};
use std::rc::Rc;
use theme::ColorStyle;
use vec::Vec2;
use view::View;
use Cursive;
use Printer;
use With;
pub struct Checkbox {
checked: bool,
enabled: bool,
on_change: Option<Rc<Fn(&mut Cursive, bool)>>,
}
new_default!(Checkbox);
impl Checkbox {
impl_enabled!(self.enabled);
pub fn new() -> Self {
Checkbox {
checked: false,
enabled: true,
on_change: None,
}
}
pub fn set_on_change<F: 'static + Fn(&mut Cursive, bool)>(
&mut self, on_change: F,
) {
self.on_change = Some(Rc::new(on_change));
}
pub fn on_change<F: 'static + Fn(&mut Cursive, bool)>(
self, on_change: F,
) -> Self {
self.with(|s| s.set_on_change(on_change))
}
pub fn toggle(&mut self) -> EventResult {
let checked = !self.checked;
self.set_checked(checked)
}
pub fn check(&mut self) -> EventResult {
self.set_checked(true)
}
pub fn checked(self) -> Self {
self.with(|s| {
s.check();
})
}
pub fn is_checked(&self) -> bool {
self.checked
}
pub fn uncheck(&mut self) -> EventResult {
self.set_checked(false)
}
pub fn unchecked(self) -> Self {
self.with(|s| {
s.uncheck();
})
}
pub fn set_checked(&mut self, checked: bool) -> EventResult {
self.checked = checked;
if let Some(ref on_change) = self.on_change {
let on_change = Rc::clone(on_change);
EventResult::with_cb(move |s| on_change(s, checked))
} else {
EventResult::Consumed(None)
}
}
fn draw_internal(&self, printer: &Printer) {
printer.print((0, 0), "[ ]");
if self.checked {
printer.print((1, 0), "X");
}
}
}
impl View for Checkbox {
fn required_size(&mut self, _: Vec2) -> Vec2 {
Vec2::new(3, 1)
}
fn take_focus(&mut self, _: Direction) -> bool {
self.enabled
}
fn draw(&self, printer: &Printer) {
if self.enabled {
printer.with_selection(printer.focused, |printer| {
self.draw_internal(printer)
});
} else {
printer.with_color(ColorStyle::secondary(), |printer| {
self.draw_internal(printer)
});
}
}
fn on_event(&mut self, event: Event) -> EventResult {
match event {
Event::Key(Key::Enter) | Event::Char(' ') => self.toggle(),
Event::Mouse {
event: MouseEvent::Release(MouseButton::Left),
position,
offset,
}
if position.fits_in_rect(offset, (3, 1)) =>
{
self.toggle()
}
_ => EventResult::Ignored,
}
}
}