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helix-plus/helix-view/src/theme.rs

187 lines
6.1 KiB
Rust

use helix_core::hashmap;
use std::collections::HashMap;
#[cfg(feature = "term")]
pub use tui::style::{Color, Style};
// #[derive(Clone, Copy, PartialEq, Eq, Default, Hash)]
// pub struct Color {
// pub r: u8,
// pub g: u8,
// pub b: u8,
// }
// impl Color {
// pub fn new(r: u8, g: u8, b: u8) -> Self {
// Self { r, g, b }
// }
// }
// #[cfg(feature = "term")]
// impl Into<tui::style::Color> for Color {
// fn into(self) -> tui::style::Color {
// tui::style::Color::Rgb(self.r, self.g, self.b)
// }
// }
// impl std::str::FromStr for Color {
// type Err = ();
// /// Tries to parse a string (`'#FFFFFF'` or `'FFFFFF'`) into RGB.
// fn from_str(input: &str) -> Result<Self, Self::Err> {
// let input = input.trim();
// let input = match (input.chars().next(), input.len()) {
// (Some('#'), 7) => &input[1..],
// (_, 6) => input,
// _ => return Err(()),
// };
// u32::from_str_radix(&input, 16)
// .map(|s| Color {
// r: ((s >> 16) & 0xFF) as u8,
// g: ((s >> 8) & 0xFF) as u8,
// b: (s & 0xFF) as u8,
// })
// .map_err(|_| ())
// }
// }
// #[derive(Clone, Copy, PartialEq, Eq, Default, Hash)]
// pub struct Style {
// pub fg: Option<Color>,
// pub bg: Option<Color>,
// // TODO: modifiers (bold, underline, italic, etc)
// }
// impl Style {
// pub fn fg(mut self, fg: Color) -> Self {
// self.fg = Some(fg);
// self
// }
// pub fn bg(mut self, bg: Color) -> Self {
// self.bg = Some(bg);
// self
// }
// }
// #[cfg(feature = "term")]
// impl Into<tui::style::Style> for Style {
// fn into(self) -> tui::style::Style {
// let style = tui::style::Style::default();
// if let Some(fg) = self.fg {
// style.fg(fg.into());
// }
// if let Some(bg) = self.bg {
// style.bg(bg.into());
// }
// style
// }
// }
/// Color theme for syntax highlighting.
pub struct Theme {
scopes: Vec<String>,
mapping: HashMap<&'static str, Style>,
}
// let highlight_names: Vec<String> = [
// "attribute",
// "constant.builtin",
// "constant",
// "function.builtin",
// "function.macro",
// "function",
// "keyword",
// "operator",
// "property",
// "punctuation",
// "comment",
// "escape",
// "label",
// // "punctuation.bracket",
// "punctuation.delimiter",
// "string",
// "string.special",
// "tag",
// "type",
// "type.builtin",
// "constructor",
// "variable",
// "variable.builtin",
// "variable.parameter",
// "path",
// ];
impl Default for Theme {
fn default() -> Self {
let mapping = hashmap! {
"attribute" => Style::default().fg(Color::Rgb(219, 191, 239)), // lilac
"keyword" => Style::default().fg(Color::Rgb(236, 205, 186)), // almond
"punctuation" => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
"punctuation.delimiter" => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
"operator" => Style::default().fg(Color::Rgb(219, 191, 239)), // lilac
"property" => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
"variable.parameter" => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
// TODO distinguish type from type.builtin?
"type" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"type.builtin" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"constructor" => Style::default().fg(Color::Rgb(219, 191, 239)), // lilac
"function" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"function.macro" => Style::default().fg(Color::Rgb(219, 191, 239)), // lilac
"comment" => Style::default().fg(Color::Rgb(105, 124, 129)), // sirocco
"variable.builtin" => Style::default().fg(Color::Rgb(159, 242, 143)), // mint
"constant" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"constant.builtin" => Style::default().fg(Color::Rgb(255, 255, 255)), // white
"string" => Style::default().fg(Color::Rgb(204, 204, 204)), // silver
"escape" => Style::default().fg(Color::Rgb(239, 186, 93)), // honey
// used for lifetimes
"label" => Style::default().fg(Color::Rgb(239, 186, 93)), // honey
// TODO: diferentiate number builtin
// TODO: diferentiate doc comment
// TODO: variable as lilac
// TODO: mod/use statements as white
// TODO: mod stuff as chamoise
// TODO: add "(scoped_identifier) @path" for std::mem::
//
// concat (ERROR) @syntax-error and "MISSING ;" selectors for errors
"module" => Style::default().fg(Color::Rgb(255, 0, 0)), // white
"variable" => Style::default().fg(Color::Rgb(255, 0, 0)), // white
"function.builtin" => Style::default().fg(Color::Rgb(255, 0, 0)), // white
"ui.background" => Style::default().bg(Color::Rgb(59, 34, 76)), // midnight
"ui.linenr" => Style::default().fg(Color::Rgb(90, 89, 119)), // comet
"ui.statusline" => Style::default().bg(Color::Rgb(40, 23, 51)), // revolver
"ui.popup" => Style::default().bg(Color::Rgb(40, 23, 51)), // revolver
"warning" => Style::default().fg(Color::Rgb(255, 205, 28)),
"error" => Style::default().fg(Color::Rgb(244, 120, 104)),
"info" => Style::default().fg(Color::Rgb(111, 68, 240)),
"hint" => Style::default().fg(Color::Rgb(204, 204, 204)),
};
let scopes = mapping.keys().map(ToString::to_string).collect();
Self { mapping, scopes }
}
}
impl Theme {
pub fn get(&self, scope: &str) -> Style {
self.mapping
.get(scope)
.copied()
.unwrap_or_else(|| Style::default().fg(Color::Rgb(0, 0, 255)))
}
#[inline]
pub fn scopes(&self) -> &[String] {
&self.scopes
}
}