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graphix_package_gui/widgets/
progress_bar.rs

1use super::{GuiW, GuiWidget, IcedElement};
2use crate::types::LengthV;
3use anyhow::{Context, Result};
4use arcstr::ArcStr;
5use graphix_compiler::expr::ExprId;
6use graphix_rt::{GXExt, GXHandle, TRef};
7use iced_widget as widget;
8use netidx::publisher::Value;
9use tokio::try_join;
10
11pub(crate) struct ProgressBarW<X: GXExt> {
12    value: TRef<X, f64>,
13    min: TRef<X, f64>,
14    max: TRef<X, f64>,
15    width: TRef<X, LengthV>,
16    height: TRef<X, Option<f64>>,
17}
18
19impl<X: GXExt> ProgressBarW<X> {
20    pub(crate) async fn compile(gx: GXHandle<X>, source: Value) -> Result<GuiW<X>> {
21        let [(_, height), (_, max), (_, min), (_, value), (_, width)] =
22            source.cast_to::<[(ArcStr, u64); 5]>().context("progress_bar flds")?;
23        let (height, max, min, value, width) = try_join! {
24            gx.compile_ref(height),
25            gx.compile_ref(max),
26            gx.compile_ref(min),
27            gx.compile_ref(value),
28            gx.compile_ref(width),
29        }?;
30        Ok(Box::new(Self {
31            value: TRef::new(value).context("progress_bar tref value")?,
32            min: TRef::new(min).context("progress_bar tref min")?,
33            max: TRef::new(max).context("progress_bar tref max")?,
34            width: TRef::new(width).context("progress_bar tref width")?,
35            height: TRef::new(height).context("progress_bar tref height")?,
36        }))
37    }
38}
39
40impl<X: GXExt> GuiWidget<X> for ProgressBarW<X> {
41    fn handle_update(
42        &mut self,
43        _rt: &tokio::runtime::Handle,
44        id: ExprId,
45        v: &Value,
46    ) -> Result<bool> {
47        let mut changed = false;
48        changed |=
49            self.value.update(id, v).context("progress_bar update value")?.is_some();
50        changed |= self.min.update(id, v).context("progress_bar update min")?.is_some();
51        changed |= self.max.update(id, v).context("progress_bar update max")?.is_some();
52        changed |=
53            self.width.update(id, v).context("progress_bar update width")?.is_some();
54        changed |=
55            self.height.update(id, v).context("progress_bar update height")?.is_some();
56        Ok(changed)
57    }
58
59    fn view(&self) -> IcedElement<'_> {
60        let val = self.value.t.unwrap_or(0.0) as f32;
61        let min = self.min.t.unwrap_or(0.0) as f32;
62        let max = self.max.t.unwrap_or(100.0) as f32;
63        let mut pb = widget::ProgressBar::new(min..=max, val);
64        if let Some(w) = self.width.t.as_ref() {
65            pb = pb.length(w.0);
66        }
67        if let Some(Some(h)) = self.height.t {
68            pb = pb.girth(h as f32);
69        }
70        pb.into()
71    }
72}