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
|
//! Allow your users to visually track the progress of a computation.
//!
//! A [`ProgressBar`] has a range of possible values and a current value,
//! as well as a length, height and style.
use crate::{Backend, Primitive, Renderer};
use iced_native::mouse;
use iced_native::progress_bar;
use iced_native::{Color, Rectangle};
pub use iced_style::progress_bar::{Style, StyleSheet};
/// A bar that displays progress.
///
/// This is an alias of an `iced_native` progress bar with an
/// `iced_wgpu::Renderer`.
pub type ProgressBar<Backend> = iced_native::ProgressBar<Renderer<Backend>>;
impl<B> progress_bar::Renderer for Renderer<B>
where
B: Backend,
{
type Style = Box<dyn StyleSheet>;
const DEFAULT_HEIGHT: u16 = 30;
fn draw(
&self,
bounds: Rectangle,
range: std::ops::RangeInclusive<f32>,
value: f32,
style_sheet: &Self::Style,
) -> Self::Output {
let style = style_sheet.style();
let (range_start, range_end) = range.into_inner();
let active_progress_width = if range_start >= range_end {
0.0
} else {
bounds.width * (value - range_start) / (range_end - range_start)
};
let background = Primitive::Group {
primitives: vec![Primitive::Quad {
bounds: Rectangle { ..bounds },
background: style.background,
border_radius: style.border_radius,
border_width: 0.0,
border_color: Color::TRANSPARENT,
}],
};
(
if active_progress_width > 0.0 {
let bar = Primitive::Quad {
bounds: Rectangle {
width: active_progress_width,
..bounds
},
background: style.bar,
border_radius: style.border_radius,
border_width: 0.0,
border_color: Color::TRANSPARENT,
};
Primitive::Group {
primitives: vec![background, bar],
}
} else {
background
},
mouse::Interaction::default(),
)
}
}
|
