67 lines
1.7 KiB
Rust
67 lines
1.7 KiB
Rust
use ansi_term::{ANSIString, Style};
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use std::fmt;
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/// A segment is a single configurable element in a module. This will usually
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/// contain a data point to provide context for the prompt's user
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/// (e.g. The version that software is running).
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pub struct Segment {
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/// The segment's name, to be used in configuration and logging.
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_name: String,
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/// The segment's style. If None, will inherit the style of the module containing it.
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style: Option<Style>,
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/// The string value of the current segment.
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value: String,
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}
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impl Segment {
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/// Creates a new segment with default fields.
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pub fn new(name: &str) -> Self {
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Self {
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_name: name.to_string(),
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style: None,
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value: "".to_string(),
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}
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}
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/// Sets the style of the segment.
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///
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/// Accepts either `Color` or `Style`.
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pub fn set_style<T>(&mut self, style: T) -> &mut Self
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where
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T: Into<Style>,
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{
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self.style = Some(style.into());
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self
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}
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/// Sets the value of the segment.
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pub fn set_value<T>(&mut self, value: T) -> &mut Self
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where
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T: Into<String>,
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{
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self.value = value.into();
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self
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}
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// Returns the ANSIString of the segment value, not including its prefix and suffix
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pub fn ansi_string(&self) -> ANSIString {
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match self.style {
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Some(style) => style.paint(&self.value),
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None => ANSIString::from(&self.value),
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}
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}
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/// Determines if the segment contains a value.
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pub fn is_empty(&self) -> bool {
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self.value.trim().is_empty()
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}
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}
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impl fmt::Display for Segment {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}", self.ansi_string())
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}
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}
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