semtext 0.1.0

Terminal UI Library
Documentation 
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// color.rs
//
// Copyright (c) 2020  Douglas P Lau
//
use crossterm::style::Color as Clr;

/// Color intensity
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum Intensity {
    /// Normal (dark) color intensity
    Normal,
    /// Bright color intensity
    Bright,
}

/// Text Colors
///
/// Colors can be specified using one of the standard 16 ANSI colors, or as
/// `Rgb` 24-bit *true color*.  In most cases, it is best to use the ANSI
/// colors, since it allows the user to define their own preferences for all
/// their terminal apps.
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum Color {
    /// ANSI color 0 *black*, and 8 *dark gray* (bright)
    Black(Intensity),
    /// ANSI color 1 *red*, and 9 (bright)
    Red(Intensity),
    /// ANSI color 2 *green*, and 10 (bright)
    Green(Intensity),
    /// ANSI color 3 *yellow*, and 11 (bright)
    Yellow(Intensity),
    /// ANSI color 4 *blue*, and 12 (bright)
    Blue(Intensity),
    /// ANSI color 5 *magenta*, and 13 (bright)
    Magenta(Intensity),
    /// ANSI color 6 *cyan*, and 14 (bright)
    Cyan(Intensity),
    /// ANSI color 7 *light gray*, and 15 *white* (bright)
    White(Intensity),
    /// Red, green, blue *true color*
    Rgb(u8, u8, u8),
}

impl From<Color> for Clr {
    fn from(clr: Color) -> Self {
        use Color::*;
        match clr {
            Black(Intensity::Normal) => Clr::Black,
            Black(Intensity::Bright) => Clr::DarkGrey,
            Red(Intensity::Normal) => Clr::DarkRed,
            Red(Intensity::Bright) => Clr::Red,
            Green(Intensity::Normal) => Clr::DarkGreen,
            Green(Intensity::Bright) => Clr::Green,
            Yellow(Intensity::Normal) => Clr::DarkYellow,
            Yellow(Intensity::Bright) => Clr::Yellow,
            Blue(Intensity::Normal) => Clr::DarkBlue,
            Blue(Intensity::Bright) => Clr::Blue,
            Magenta(Intensity::Normal) => Clr::DarkMagenta,
            Magenta(Intensity::Bright) => Clr::Magenta,
            Cyan(Intensity::Normal) => Clr::DarkCyan,
            Cyan(Intensity::Bright) => Clr::Cyan,
            White(Intensity::Normal) => Clr::Grey,
            White(Intensity::Bright) => Clr::White,
            Rgb(r, g, b) => Clr::Rgb { r, g, b },
        }
    }
}