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230 lines
6.5 KiB
230 lines
6.5 KiB
use core::mem;
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use crate::{
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error::Error,
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strutil::StringType,
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ui::{
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component::{
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paginated::Paginate,
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text::paragraphs::{Paragraph, Paragraphs},
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Child, Component, Event, EventCtx, Label, Never, Pad,
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},
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constant,
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display::{self, Font, Icon, LOADER_MAX},
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geometry::{Alignment2D, Offset, Rect},
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model_tr::cshape,
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shape,
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shape::Renderer,
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util::animation_disabled,
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},
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};
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use super::super::theme;
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const BOTTOM_DESCRIPTION_MARGIN: i16 = 10;
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const LOADER_Y_OFFSET_TITLE: i16 = -10;
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const LOADER_Y_OFFSET_NO_TITLE: i16 = -20;
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// Clippy was complaining about `very complex type used`
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type UpdateDescriptionFn<T, Error> = fn(&str) -> Result<T, Error>;
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pub struct Progress<T>
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where
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T: StringType,
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{
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title: Option<Child<Label<T>>>,
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value: u16,
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loader_y_offset: i16,
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indeterminate: bool,
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description: Child<Paragraphs<Paragraph<T>>>,
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description_pad: Pad,
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update_description: Option<UpdateDescriptionFn<T, Error>>,
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icon: Icon,
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}
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impl<T> Progress<T>
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where
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T: StringType,
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{
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const AREA: Rect = constant::screen();
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pub fn new(indeterminate: bool, description: T) -> Self {
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Self {
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title: None,
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value: 0,
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loader_y_offset: 0,
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indeterminate,
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description: Child::new(Paragraphs::new(
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Paragraph::new(&theme::TEXT_NORMAL, description).centered(),
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)),
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description_pad: Pad::with_background(theme::BG),
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update_description: None,
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icon: theme::ICON_TICK_FAT,
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}
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}
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pub fn with_title(mut self, title: T) -> Self {
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self.title = Some(Child::new(Label::centered(title, theme::TEXT_BOLD)));
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self
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}
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pub fn with_update_description(
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mut self,
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update_description: UpdateDescriptionFn<T, Error>,
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) -> Self {
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self.update_description = Some(update_description);
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self
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}
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pub fn with_icon(mut self, icon: Icon) -> Self {
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self.icon = icon;
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self
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}
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pub fn request_paint(&self, ctx: &mut EventCtx) {
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if !animation_disabled() {
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ctx.request_paint();
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}
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}
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pub fn value(&self) -> u16 {
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self.value
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}
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pub fn reached_max_value(&self) -> bool {
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self.value >= LOADER_MAX
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}
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}
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impl<T> Component for Progress<T>
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where
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T: StringType,
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{
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type Msg = Never;
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fn place(&mut self, _bounds: Rect) -> Rect {
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let description_lines = 1 + self
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.description
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.inner()
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.inner()
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.content()
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.as_ref()
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.chars()
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.filter(|c| *c == '\n')
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.count() as i16;
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let no_title_case = (Rect::zero(), Self::AREA, LOADER_Y_OFFSET_NO_TITLE);
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let (title, rest, loader_y_offset) = if let Some(self_title) = &self.title {
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if !self_title.inner().text().as_ref().is_empty() {
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let (title, rest) = Self::AREA.split_top(self_title.inner().max_size().y);
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(title, rest, LOADER_Y_OFFSET_TITLE)
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} else {
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no_title_case
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}
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} else {
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no_title_case
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};
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let (_loader, description) = rest.split_bottom(
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BOTTOM_DESCRIPTION_MARGIN + Font::NORMAL.line_height() * description_lines,
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);
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self.title.place(title);
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self.loader_y_offset = loader_y_offset;
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self.description.place(description);
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self.description_pad.place(description);
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Self::AREA
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}
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fn event(&mut self, ctx: &mut EventCtx, event: Event) -> Option<Self::Msg> {
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self.title.event(ctx, event);
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self.description.event(ctx, event);
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if let Event::Progress(new_value, new_description) = event {
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if mem::replace(&mut self.value, new_value) != new_value {
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self.request_paint(ctx);
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}
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if let Some(update_description) = self.update_description {
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self.description.mutate(ctx, |ctx, para| {
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// NOTE: not doing any change for empty new descriptions
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// (currently, there is no use-case for deleting the description)
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if !new_description.is_empty()
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&& para.inner_mut().content().as_ref() != new_description
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{
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let new_description = unwrap!((update_description)(new_description));
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para.inner_mut().update(new_description);
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para.change_page(0); // Recompute bounding box.
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ctx.request_paint();
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self.description_pad.clear();
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}
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});
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}
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}
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None
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}
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fn paint(&mut self) {
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self.title.paint();
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if self.indeterminate {
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display::loader_indeterminate(
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self.value,
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self.loader_y_offset,
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theme::FG,
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theme::BG,
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None,
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);
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} else {
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display::loader(
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self.value,
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self.loader_y_offset,
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theme::FG,
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theme::BG,
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Some((self.icon, theme::FG)),
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);
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}
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self.description_pad.paint();
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self.description.paint();
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}
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fn render<'s>(&'s self, target: &mut impl Renderer<'s>) {
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self.title.render(target);
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let area = constant::screen();
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let center = area.center() + Offset::y(self.loader_y_offset);
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if self.indeterminate {
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cshape::LoaderStarry::new(center, self.value)
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.with_color(theme::FG)
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.render(target);
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} else {
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cshape::LoaderCircular::new(center, self.value)
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.with_color(theme::FG)
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.render(target);
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shape::ToifImage::new(center, self.icon.toif)
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.with_align(Alignment2D::CENTER)
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.with_fg(theme::FG)
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.render(target);
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}
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self.description_pad.render(target);
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self.description.render(target);
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}
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#[cfg(feature = "ui_bounds")]
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fn bounds(&self, sink: &mut dyn FnMut(Rect)) {
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sink(Self::AREA);
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self.title.bounds(sink);
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self.description.bounds(sink);
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}
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}
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// DEBUG-ONLY SECTION BELOW
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#[cfg(feature = "ui_debug")]
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impl<T> crate::trace::Trace for Progress<T>
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where
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T: StringType,
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{
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fn trace(&self, t: &mut dyn crate::trace::Tracer) {
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t.component("Progress");
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}
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}
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