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use std::{fmt, ops::Deref, sync::Arc};
use crate::progress::Step;
#[cfg(feature = "unit-bytes")]
mod bytes;
#[cfg(feature = "unit-bytes")]
pub use bytes::Bytes;
#[cfg(feature = "unit-duration")]
mod duration;
#[cfg(feature = "unit-duration")]
pub use duration::Duration;
#[cfg(feature = "unit-human")]
///
pub mod human;
#[cfg(feature = "unit-human")]
#[doc(inline)]
pub use human::Human;
mod range;
pub use range::Range;
mod traits;
pub use traits::DisplayValue;
/// Various utilities to display values and units.
pub mod display;
/// A configurable and flexible unit for use in [Progress::init()][crate::Progress::init()].
#[derive(Debug, Clone, Hash)]
pub struct Unit {
kind: Kind,
mode: Option<display::Mode>,
}
/// Either a static label or a dynamic one implementing [`DisplayValue`].
#[derive(Clone)]
pub enum Kind {
/// Display only the given statically known label.
Label(&'static str),
/// Display a label created dynamically.
Dynamic(Arc<dyn DisplayValue + Send + Sync>),
}
impl std::hash::Hash for Kind {
fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
match self {
Kind::Label(s) => {
0.hash(state);
s.dyn_hash(state)
}
Kind::Dynamic(label) => {
1.hash(state);
label.dyn_hash(state);
}
}
}
}
impl fmt::Debug for Kind {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Kind::Label(name) => f.write_fmt(format_args!("Unit::Label({:?})", name)),
Kind::Dynamic(_) => f.write_fmt(format_args!("Unit::Dynamic(..)")),
}
}
}
impl From<&'static str> for Unit {
fn from(v: &'static str) -> Self {
label(v)
}
}
/// Returns a unit that is a static `label`.
pub fn label(label: &'static str) -> Unit {
Unit {
kind: Kind::Label(label),
mode: None,
}
}
/// Returns a unit that is a static `label` along with information on where to display a fraction and throughput.
pub fn label_and_mode(label: &'static str, mode: display::Mode) -> Unit {
Unit {
kind: Kind::Label(label),
mode: Some(mode),
}
}
/// Returns a unit that is a dynamic `label`.
pub fn dynamic(label: impl DisplayValue + Send + Sync + 'static) -> Unit {
Unit {
kind: Kind::Dynamic(Arc::new(label)),
mode: None,
}
}
/// Returns a unit that is a dynamic `label` along with information on where to display a fraction and throughput.
pub fn dynamic_and_mode(label: impl DisplayValue + Send + Sync + 'static, mode: display::Mode) -> Unit {
Unit {
kind: Kind::Dynamic(Arc::new(label)),
mode: Some(mode),
}
}
/// Display and utilities
impl Unit {
/// Create a representation of `self` implementing [`Display`][std::fmt::Display] in configurable fashion.
///
/// * `current_value` is the progress value to display.
/// * `upper_bound` is the possibly available upper bound of `current_value`.
/// * `throughput` configures how throughput should be displayed if already available.
///
/// Note that `throughput` is usually not available the first time a value is displayed.
pub fn display(
&self,
current_value: Step,
upper_bound: Option<Step>,
throughput: impl Into<Option<display::Throughput>>,
) -> display::UnitDisplay {
display::UnitDisplay {
current_value,
upper_bound,
throughput: throughput.into(),
parent: self,
display: display::What::ValuesAndUnit,
}
}
/// Return `self` as trait object implementing `DisplayValue`.
pub fn as_display_value(&self) -> &dyn DisplayValue {
match self.kind {
Kind::Label(ref unit) => unit,
Kind::Dynamic(ref unit) => unit.deref(),
}
}
}
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