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/// Represents am enum with varians that can be used to describe the foreground and background colors of a character in a terminal or console application.
#[cfg(not(feature = "TRUE_COLORS"))]
#[repr(u8)]
#[derive(Copy, Clone, Eq, PartialEq, Debug, Default)]
pub enum Color {
/// <table><tr><td style="background-color: #000000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
#[default]
Black = 0x00,
/// <table><tr><td style="background-color: #000080; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
DarkBlue = 0x01,
/// <table><tr><td style="background-color: #008000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
DarkGreen = 0x02,
/// <table><tr><td style="background-color: #008080; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Teal = 0x03,
/// <table><tr><td style="background-color: #800000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
DarkRed = 0x04,
/// <table><tr><td style="background-color: #800080; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Magenta = 0x05,
/// <table><tr><td style="background-color: #808000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Olive = 0x06,
/// <table><tr><td style="background-color: #C0C0C0; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Silver = 0x07,
/// <table><tr><td style="background-color: #808080; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Gray = 0x08,
/// <table><tr><td style="background-color: #0000FF; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Blue = 0x09,
/// <table><tr><td style="background-color: #00FF00; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Green = 0x0A,
/// <table><tr><td style="background-color: #00FFFF; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Aqua = 0x0B,
/// <table><tr><td style="background-color: #FF0000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Red = 0x0C,
/// <table><tr><td style="background-color: #FF00FF; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Pink = 0x0D,
/// <table><tr><td style="background-color: #FFFF00; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Yellow = 0x0E,
/// <table><tr><td style="background-color: #FFFFFF; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
White = 0x0F,
/// a marker for transparent color
Transparent = 0x10,
}
#[cfg(feature = "TRUE_COLORS")]
#[repr(u32)]
#[derive(Copy, Clone, Eq, PartialEq, Debug, Default)]
pub enum Color {
/// <table><tr><td style="background-color: #000000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
#[default]
Black = 0x00,
/// <table><tr><td style="background-color: #000080; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
DarkBlue = 0x01,
/// <table><tr><td style="background-color: #008000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
DarkGreen = 0x02,
/// <table><tr><td style="background-color: #008080; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Teal = 0x03,
/// <table><tr><td style="background-color: #800000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
DarkRed = 0x04,
/// <table><tr><td style="background-color: #800080; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Magenta = 0x05,
/// <table><tr><td style="background-color: #808000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Olive = 0x06,
/// <table><tr><td style="background-color: #C0C0C0; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Silver = 0x07,
/// <table><tr><td style="background-color: #808080; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Gray = 0x08,
/// <table><tr><td style="background-color: #0000FF; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Blue = 0x09,
/// <table><tr><td style="background-color: #00FF00; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Green = 0x0A,
/// <table><tr><td style="background-color: #00FFFF; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Aqua = 0x0B,
/// <table><tr><td style="background-color: #FF0000; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Red = 0x0C,
/// <table><tr><td style="background-color: #FF00FF; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Pink = 0x0D,
/// <table><tr><td style="background-color: #FFFF00; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
Yellow = 0x0E,
/// <table><tr><td style="background-color: #FFFFFF; width: 20px; height: 20px; border: 1px solid #000;"></td></tr></table>
White = 0x0F,
/// a marker for transparent color
Transparent = 0x10,
RGB(u8, u8, u8),
}
impl Color {
#[inline(always)]
pub fn contrast_color(&self) -> Self {
match self {
Color::Black | Color::DarkBlue | Color::DarkGreen | Color::Teal | Color::DarkRed | Color::Magenta | Color::Olive | Color::Gray | Color::Blue | Color::Red => Color::White,
Color::Silver | Color::Green | Color::Aqua | Color::Pink | Color::Yellow | Color::White => Color::Black,
Color::Transparent => Color::Transparent,
#[cfg(feature = "TRUE_COLORS")]
Color::RGB(r, g, b) => {
if (2126 * (*r as i32) + 7152 * (*g as i32) + 722 * (*b as i32)) > 1275000 {
Color::Black
} else {
Color::White
}
}
}
}
#[inline(always)]
pub fn inverse_color(&self) -> Self {
match self {
Color::Black => Color::White, // #000000 → #FFFFFF
Color::DarkBlue => Color::Yellow, // #000080 → #FFFF7F
Color::DarkGreen => Color::Pink, // #008000 → #FF7FFF
Color::Teal => Color::Red, // #008080 → #FF7F7F
Color::DarkRed => Color::Aqua, // #800000 → #7FFFFF
Color::Magenta => Color::Green, // #800080 → #7FFF7F
Color::Olive => Color::Blue, // #808000 → #7F7FFF
Color::Silver => Color::Gray, // #C0C0C0 → #3F3F3F
Color::Gray => Color::Silver, // #808080 → #7F7F7F
Color::Blue => Color::Olive, // #0000FF → #FFFF00
Color::Green => Color::Magenta, // #00FF00 → #FF00FF
Color::Aqua => Color::DarkRed, // #00FFFF → #FF0000
Color::Red => Color::Teal, // #FF0000 → #00FFFF
Color::Pink => Color::DarkGreen, // #FF00FF → #00FF00
Color::Yellow => Color::DarkBlue, // #FFFF00 → #0000FF
Color::White => Color::Black, // #FFFFFF → #000000
Color::Transparent => Color::Transparent,
#[cfg(feature = "TRUE_COLORS")]
Color::RGB(r, g, b) => Color::from_rgb(255 - *r, 255 - *g, 255 - *b),
}
}
pub fn from_value(value: i32) -> Option<Color> {
match value {
0 => Some(Color::Black),
1 => Some(Color::DarkBlue),
2 => Some(Color::DarkGreen),
3 => Some(Color::Teal),
4 => Some(Color::DarkRed),
5 => Some(Color::Magenta),
6 => Some(Color::Olive),
7 => Some(Color::Silver),
8 => Some(Color::Gray),
9 => Some(Color::Blue),
10 => Some(Color::Green),
11 => Some(Color::Aqua),
12 => Some(Color::Red),
13 => Some(Color::Pink),
14 => Some(Color::Yellow),
15 => Some(Color::White),
16 => Some(Color::Transparent),
_ => None,
}
}
pub fn name(&self) -> &str {
match self {
Color::Black => "Black",
Color::DarkBlue => "DarkBlue",
Color::DarkGreen => "DarkGreen",
Color::Teal => "Teal",
Color::DarkRed => "DarkRed",
Color::Magenta => "Magenta",
Color::Olive => "Olive",
Color::Silver => "Silver",
Color::Gray => "Gray",
Color::Blue => "Blue",
Color::Green => "Green",
Color::Aqua => "Aqua",
Color::Red => "Red",
Color::Pink => "Pink",
Color::Yellow => "Yellow",
Color::White => "White",
Color::Transparent => "Transparent",
#[cfg(feature = "TRUE_COLORS")]
Color::RGB(_, _, _) => "RGB",
}
}
#[inline(always)]
pub(crate) fn as_color_index(&self) -> u8 {
match self {
Color::Black => 0,
Color::DarkBlue => 1,
Color::DarkGreen => 2,
Color::Teal => 3,
Color::DarkRed => 4,
Color::Magenta => 5,
Color::Olive => 6,
Color::Silver => 7,
Color::Gray => 8,
Color::Blue => 9,
Color::Green => 10,
Color::Aqua => 11,
Color::Red => 12,
Color::Pink => 13,
Color::Yellow => 14,
Color::White => 15,
Color::Transparent => 16,
#[cfg(feature = "TRUE_COLORS")]
Color::RGB(r, g, b) => {
let mut index = 0;
if *r > 64 {
index |= 0b100;
}
if *g > 64 {
index |= 0b010;
}
if *b > 64 {
index |= 0b001;
}
// 192 (0xc0) should remain like this so that we obtain th Silver
if *r >= 196 || *g >= 196 || *b >= 196 {
index |= 0b1000;
}
index
}
}
}
// #[cfg(feature = "TRUE_COLORS")]
// #[inline(always)]
// pub(crate) fn is_rgb(&self) -> bool {
// matches!(self, Color::RGB(_, _, _))
// }
// #[cfg(not(feature = "TRUE_COLORS"))]
// #[inline(always)]
// pub(crate) fn is_rgb(&self) -> bool {
// false
// }
#[cfg(feature = "TRUE_COLORS")]
#[inline(always)]
pub(crate) fn rgb(&self) -> Option<(u8, u8, u8)> {
match self {
Color::RGB(r, g, b) => Some((*r, *g, *b)),
_ => None,
}
}
#[cfg(not(feature = "TRUE_COLORS"))]
#[inline(always)]
pub(crate) fn rgb(&self) -> Option<(u8, u8, u8)> {
None
}
pub fn from_rgb(r: u8, g: u8, b: u8) -> Color {
#[cfg(feature = "TRUE_COLORS")]
return Color::RGB(r, g, b);
#[cfg(not(feature = "TRUE_COLORS"))]
{
let mut index = 0;
if r > 64 {
index |= 0b100;
}
if g > 64 {
index |= 0b010;
}
if b > 64 {
index |= 0b001;
}
// 192 (0xc0) should remain like this so that we obtain th Silver
if r >= 196 || g >= 196 || b >= 196 {
index |= 0b1000;
}
Color::from_value(index).unwrap()
}
}
}