bbx_draw/
color.rs

1//! Color palette utilities for visualizations.
2
3use nannou::color::{Rgb, Srgb};
4
5/// Default color palette for visualizations.
6///
7/// Returns color values as `(r, g, b)` tuples for use in visualizations.
8pub struct Palette;
9
10impl Palette {
11    /// Generator block color (blue).
12    pub fn generator() -> Srgb<u8> {
13        Srgb::new(66, 133, 244)
14    }
15
16    /// Effector block color (green).
17    pub fn effector() -> Srgb<u8> {
18        Srgb::new(52, 168, 83)
19    }
20
21    /// Modulator block color (purple).
22    pub fn modulator() -> Srgb<u8> {
23        Srgb::new(156, 39, 176)
24    }
25
26    /// I/O block color (orange).
27    pub fn io() -> Srgb<u8> {
28        Srgb::new(251, 140, 0)
29    }
30
31    /// Audio connection line color (gray).
32    pub fn audio_connection() -> Srgb<u8> {
33        Srgb::new(158, 158, 158)
34    }
35
36    /// Modulation connection line color (pink/magenta).
37    pub fn modulation_connection() -> Srgb<u8> {
38        Srgb::new(233, 30, 99)
39    }
40
41    /// Primary text color (white).
42    pub fn text() -> Srgb<u8> {
43        Srgb::new(255, 255, 255)
44    }
45
46    /// Background color (dark gray).
47    pub fn background() -> Srgb<u8> {
48        Srgb::new(30, 30, 30)
49    }
50
51    /// Waveform line color (cyan).
52    pub fn waveform() -> Srgb<u8> {
53        Srgb::new(0, 188, 212)
54    }
55
56    /// Spectrum bar color (magenta).
57    pub fn spectrum() -> Srgb<u8> {
58        Srgb::new(233, 30, 99)
59    }
60
61    /// Spectrum peak color (yellow).
62    pub fn spectrum_peak() -> Srgb<u8> {
63        Srgb::new(255, 235, 59)
64    }
65
66    /// MIDI note on color (green).
67    pub fn midi_note_on() -> Srgb<u8> {
68        Srgb::new(76, 175, 80)
69    }
70
71    /// MIDI note off color (dimmed).
72    pub fn midi_note_off() -> Srgb<u8> {
73        Srgb::new(66, 66, 66)
74    }
75}
76
77/// Convert an Srgb<u8> color to normalized Rgb<f32> for nannou.
78pub fn to_rgb(color: Srgb<u8>) -> Rgb {
79    Rgb::new(
80        color.red as f32 / 255.0,
81        color.green as f32 / 255.0,
82        color.blue as f32 / 255.0,
83    )
84}
85
86/// Interpolate between two colors.
87pub fn lerp_color(a: Srgb<u8>, b: Srgb<u8>, t: f32) -> Rgb {
88    let t = t.clamp(0.0, 1.0);
89    Rgb::new(
90        (a.red as f32 + (b.red as f32 - a.red as f32) * t) / 255.0,
91        (a.green as f32 + (b.green as f32 - a.green as f32) * t) / 255.0,
92        (a.blue as f32 + (b.blue as f32 - a.blue as f32) * t) / 255.0,
93    )
94}
bbx_draw/color.rs

bbx_draw/
color.rs
