display/
color_mode.rs

1/// Represents the color mode of a terminal interface.
2#[derive(Copy, Clone, Debug, PartialEq, Eq)]
3#[allow(clippy::exhaustive_enums)]
4pub enum ColorMode {
5	/// Supports 2 colors.
6	TwoTone,
7	/// Supports 8 colors.
8	ThreeBit,
9	/// Supports 16 colors.
10	FourBit,
11	/// Supports 256 colors.
12	EightBit,
13	/// Supports 24 bits of color.
14	TrueColor,
15}
16
17impl ColorMode {
18	/// Supports 4 bit or more of color.
19	#[inline]
20	#[must_use]
21	pub fn has_minimum_four_bit_color(self) -> bool {
22		self == Self::FourBit || self == Self::EightBit || self == Self::TrueColor
23	}
24
25	/// Has true color support.
26	#[inline]
27	#[must_use]
28	pub fn has_true_color(self) -> bool {
29		self == Self::TrueColor
30	}
31}
32
33#[cfg(test)]
34mod tests {
35	use super::*;
36
37	#[test]
38	fn color_mode_has_minimum_four_bit_color_two_tone() {
39		assert!(!ColorMode::TwoTone.has_minimum_four_bit_color());
40	}
41
42	#[test]
43	fn color_mode_has_minimum_four_bit_color_three_bit() {
44		assert!(!ColorMode::ThreeBit.has_minimum_four_bit_color());
45	}
46
47	#[test]
48	fn color_mode_has_minimum_four_bit_color_four_bit() {
49		assert!(ColorMode::FourBit.has_minimum_four_bit_color());
50	}
51
52	#[test]
53	fn color_mode_has_minimum_four_bit_color_eight_bit() {
54		assert!(ColorMode::EightBit.has_minimum_four_bit_color());
55	}
56
57	#[test]
58	fn color_mode_has_minimum_four_bit_color_true_color() {
59		assert!(ColorMode::TrueColor.has_minimum_four_bit_color());
60	}
61
62	#[test]
63	fn color_mode_has_true_color_two_tone() {
64		assert!(!ColorMode::TwoTone.has_true_color());
65	}
66
67	#[test]
68	fn color_mode_has_true_color_three_bit() {
69		assert!(!ColorMode::ThreeBit.has_true_color());
70	}
71
72	#[test]
73	fn color_mode_has_true_color_four_bit() {
74		assert!(!ColorMode::FourBit.has_true_color());
75	}
76
77	#[test]
78	fn color_mode_has_true_color_eight_bit() {
79		assert!(!ColorMode::EightBit.has_true_color());
80	}
81
82	#[test]
83	fn color_mode_has_true_color_true_color() {
84		assert!(ColorMode::TrueColor.has_true_color());
85	}
86}
display/color_mode.rs

display/
color_mode.rs
