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| 1 | +//! Theme and accessibility configuration |
| 2 | +//! |
| 3 | +//! Supports color customization and accessibility options. |
| 4 | + |
| 5 | +use serde::Deserialize; |
| 6 | + |
| 7 | +/// RGBA color (0.0-1.0 range) |
| 8 | +#[derive(Debug, Clone, Copy)] |
| 9 | +pub struct Color { |
| 10 | + pub r: f64, |
| 11 | + pub g: f64, |
| 12 | + pub b: f64, |
| 13 | + pub a: f64, |
| 14 | +} |
| 15 | + |
| 16 | +impl Color { |
| 17 | + pub fn rgb(r: f64, g: f64, b: f64) -> Self { |
| 18 | + Self { r, g, b, a: 1.0 } |
| 19 | + } |
| 20 | + |
| 21 | + pub fn rgba(r: f64, g: f64, b: f64, a: f64) -> Self { |
| 22 | + Self { r, g, b, a } |
| 23 | + } |
| 24 | + |
| 25 | + /// Parse color from hex (#RRGGBB or #RRGGBBAA) or rgba(r, g, b, a) format |
| 26 | + pub fn parse(s: &str) -> Option<Self> { |
| 27 | + let s = s.trim(); |
| 28 | + |
| 29 | + // Try hex format |
| 30 | + if s.starts_with('#') { |
| 31 | + return Self::parse_hex(s); |
| 32 | + } |
| 33 | + |
| 34 | + // Try rgba() format |
| 35 | + if s.starts_with("rgba(") && s.ends_with(')') { |
| 36 | + return Self::parse_rgba(s); |
| 37 | + } |
| 38 | + |
| 39 | + // Try rgb() format |
| 40 | + if s.starts_with("rgb(") && s.ends_with(')') { |
| 41 | + return Self::parse_rgb(s); |
| 42 | + } |
| 43 | + |
| 44 | + None |
| 45 | + } |
| 46 | + |
| 47 | + fn parse_hex(s: &str) -> Option<Self> { |
| 48 | + let s = s.trim_start_matches('#'); |
| 49 | + |
| 50 | + match s.len() { |
| 51 | + 6 => { |
| 52 | + let r = u8::from_str_radix(&s[0..2], 16).ok()?; |
| 53 | + let g = u8::from_str_radix(&s[2..4], 16).ok()?; |
| 54 | + let b = u8::from_str_radix(&s[4..6], 16).ok()?; |
| 55 | + Some(Self::rgb(r as f64 / 255.0, g as f64 / 255.0, b as f64 / 255.0)) |
| 56 | + } |
| 57 | + 8 => { |
| 58 | + let r = u8::from_str_radix(&s[0..2], 16).ok()?; |
| 59 | + let g = u8::from_str_radix(&s[2..4], 16).ok()?; |
| 60 | + let b = u8::from_str_radix(&s[4..6], 16).ok()?; |
| 61 | + let a = u8::from_str_radix(&s[6..8], 16).ok()?; |
| 62 | + Some(Self::rgba( |
| 63 | + r as f64 / 255.0, |
| 64 | + g as f64 / 255.0, |
| 65 | + b as f64 / 255.0, |
| 66 | + a as f64 / 255.0, |
| 67 | + )) |
| 68 | + } |
| 69 | + _ => None, |
| 70 | + } |
| 71 | + } |
| 72 | + |
| 73 | + fn parse_rgba(s: &str) -> Option<Self> { |
| 74 | + let inner = s.trim_start_matches("rgba(").trim_end_matches(')'); |
| 75 | + let parts: Vec<&str> = inner.split(',').map(|p| p.trim()).collect(); |
| 76 | + if parts.len() != 4 { |
| 77 | + return None; |
| 78 | + } |
| 79 | + |
| 80 | + let r: f64 = parts[0].parse().ok()?; |
| 81 | + let g: f64 = parts[1].parse().ok()?; |
| 82 | + let b: f64 = parts[2].parse().ok()?; |
| 83 | + let a: f64 = parts[3].parse().ok()?; |
| 84 | + |
| 85 | + // Support both 0-255 and 0-1 ranges for rgb components |
| 86 | + let (r, g, b) = if r > 1.0 || g > 1.0 || b > 1.0 { |
| 87 | + (r / 255.0, g / 255.0, b / 255.0) |
| 88 | + } else { |
| 89 | + (r, g, b) |
| 90 | + }; |
| 91 | + |
| 92 | + Some(Self::rgba(r, g, b, a)) |
| 93 | + } |
| 94 | + |
| 95 | + fn parse_rgb(s: &str) -> Option<Self> { |
| 96 | + let inner = s.trim_start_matches("rgb(").trim_end_matches(')'); |
| 97 | + let parts: Vec<&str> = inner.split(',').map(|p| p.trim()).collect(); |
| 98 | + if parts.len() != 3 { |
| 99 | + return None; |
| 100 | + } |
| 101 | + |
| 102 | + let r: f64 = parts[0].parse().ok()?; |
| 103 | + let g: f64 = parts[1].parse().ok()?; |
| 104 | + let b: f64 = parts[2].parse().ok()?; |
| 105 | + |
| 106 | + // Support both 0-255 and 0-1 ranges |
| 107 | + let (r, g, b) = if r > 1.0 || g > 1.0 || b > 1.0 { |
| 108 | + (r / 255.0, g / 255.0, b / 255.0) |
| 109 | + } else { |
| 110 | + (r, g, b) |
| 111 | + }; |
| 112 | + |
| 113 | + Some(Self::rgb(r, g, b)) |
| 114 | + } |
| 115 | +} |
| 116 | + |
| 117 | +impl Default for Color { |
| 118 | + fn default() -> Self { |
| 119 | + Self::rgb(1.0, 1.0, 1.0) |
| 120 | + } |
| 121 | +} |
| 122 | + |
| 123 | +/// Theme configuration for visual customization |
| 124 | +#[derive(Debug, Clone)] |
| 125 | +pub struct Theme { |
| 126 | + // Panel/background colors |
| 127 | + pub panel_background: Color, |
| 128 | + pub background_overlay: Color, |
| 129 | + |
| 130 | + // Text colors |
| 131 | + pub text_primary: Color, |
| 132 | + pub text_secondary: Color, |
| 133 | + pub text_error: Color, |
| 134 | + pub text_info: Color, |
| 135 | + |
| 136 | + // Accent colors |
| 137 | + pub accent: Color, |
| 138 | + pub accent_hover: Color, |
| 139 | + |
| 140 | + // Input field colors |
| 141 | + pub input_background: Color, |
| 142 | + pub input_background_focused: Color, |
| 143 | + pub input_border: Color, |
| 144 | + |
| 145 | + // Button colors |
| 146 | + pub button_background: Color, |
| 147 | + pub button_background_disabled: Color, |
| 148 | + |
| 149 | + // Typography |
| 150 | + pub font_family: String, |
| 151 | + pub font_size_normal: i32, |
| 152 | + pub font_size_large: i32, |
| 153 | + pub font_size_title: i32, |
| 154 | + |
| 155 | + // Layout |
| 156 | + pub corner_radius: f64, |
| 157 | +} |
| 158 | + |
| 159 | +impl Default for Theme { |
| 160 | + fn default() -> Self { |
| 161 | + Self { |
| 162 | + panel_background: Color::rgba(0.1, 0.1, 0.1, 0.85), |
| 163 | + background_overlay: Color::rgba(0.0, 0.0, 0.0, 0.0), |
| 164 | + |
| 165 | + text_primary: Color::rgb(1.0, 1.0, 1.0), |
| 166 | + text_secondary: Color::rgba(0.8, 0.8, 0.8, 1.0), |
| 167 | + text_error: Color::rgb(1.0, 0.3, 0.3), |
| 168 | + text_info: Color::rgba(0.7, 0.7, 0.7, 1.0), |
| 169 | + |
| 170 | + accent: Color::rgb(0.2, 0.5, 0.8), |
| 171 | + accent_hover: Color::rgb(0.3, 0.6, 0.9), |
| 172 | + |
| 173 | + input_background: Color::rgba(0.25, 0.25, 0.25, 1.0), |
| 174 | + input_background_focused: Color::rgba(0.2, 0.4, 0.6, 1.0), |
| 175 | + input_border: Color::rgb(0.3, 0.6, 0.9), |
| 176 | + |
| 177 | + button_background: Color::rgba(0.2, 0.5, 0.8, 1.0), |
| 178 | + button_background_disabled: Color::rgba(0.3, 0.3, 0.3, 1.0), |
| 179 | + |
| 180 | + font_family: "Sans".to_string(), |
| 181 | + font_size_normal: 14, |
| 182 | + font_size_large: 18, |
| 183 | + font_size_title: 24, |
| 184 | + |
| 185 | + corner_radius: 16.0, |
| 186 | + } |
| 187 | + } |
| 188 | +} |
| 189 | + |
| 190 | +impl Theme { |
| 191 | + /// Create a high-contrast theme variant |
| 192 | + pub fn high_contrast() -> Self { |
| 193 | + Self { |
| 194 | + panel_background: Color::rgba(0.0, 0.0, 0.0, 0.95), |
| 195 | + background_overlay: Color::rgba(0.0, 0.0, 0.0, 0.5), |
| 196 | + |
| 197 | + text_primary: Color::rgb(1.0, 1.0, 1.0), |
| 198 | + text_secondary: Color::rgb(1.0, 1.0, 0.0), // Yellow for visibility |
| 199 | + text_error: Color::rgb(1.0, 0.2, 0.2), |
| 200 | + text_info: Color::rgb(0.2, 1.0, 0.2), |
| 201 | + |
| 202 | + accent: Color::rgb(0.0, 0.8, 1.0), // Bright cyan |
| 203 | + accent_hover: Color::rgb(0.2, 1.0, 1.0), |
| 204 | + |
| 205 | + input_background: Color::rgba(0.0, 0.0, 0.0, 1.0), |
| 206 | + input_background_focused: Color::rgba(0.0, 0.2, 0.4, 1.0), |
| 207 | + input_border: Color::rgb(1.0, 1.0, 0.0), // Yellow border |
| 208 | + |
| 209 | + button_background: Color::rgba(0.0, 0.6, 0.8, 1.0), |
| 210 | + button_background_disabled: Color::rgba(0.3, 0.3, 0.3, 1.0), |
| 211 | + |
| 212 | + font_family: "Sans".to_string(), |
| 213 | + font_size_normal: 16, // Slightly larger |
| 214 | + font_size_large: 20, |
| 215 | + font_size_title: 28, |
| 216 | + |
| 217 | + corner_radius: 8.0, |
| 218 | + } |
| 219 | + } |
| 220 | + |
| 221 | + /// Apply large text accessibility option |
| 222 | + pub fn with_large_text(mut self) -> Self { |
| 223 | + self.font_size_normal = (self.font_size_normal as f64 * 1.25) as i32; |
| 224 | + self.font_size_large = (self.font_size_large as f64 * 1.25) as i32; |
| 225 | + self.font_size_title = (self.font_size_title as f64 * 1.25) as i32; |
| 226 | + self |
| 227 | + } |
| 228 | +} |
| 229 | + |
| 230 | +/// Accessibility configuration |
| 231 | +#[derive(Debug, Clone, Deserialize)] |
| 232 | +pub struct AccessibilityConfig { |
| 233 | + /// Enable high contrast mode |
| 234 | + #[serde(default)] |
| 235 | + pub high_contrast: bool, |
| 236 | + |
| 237 | + /// Enable larger text |
| 238 | + #[serde(default)] |
| 239 | + pub large_text: bool, |
| 240 | + |
| 241 | + /// Disable fade transitions |
| 242 | + #[serde(default)] |
| 243 | + pub reduce_motion: bool, |
| 244 | +} |
| 245 | + |
| 246 | +impl Default for AccessibilityConfig { |
| 247 | + fn default() -> Self { |
| 248 | + Self { |
| 249 | + high_contrast: false, |
| 250 | + large_text: false, |
| 251 | + reduce_motion: false, |
| 252 | + } |
| 253 | + } |
| 254 | +} |
| 255 | + |
| 256 | +/// Raw theme config for deserialization |
| 257 | +#[derive(Debug, Clone, Deserialize, Default)] |
| 258 | +pub struct ThemeConfig { |
| 259 | + #[serde(default)] |
| 260 | + pub panel_background: Option<String>, |
| 261 | + #[serde(default)] |
| 262 | + pub background_overlay: Option<String>, |
| 263 | + #[serde(default)] |
| 264 | + pub text_primary: Option<String>, |
| 265 | + #[serde(default)] |
| 266 | + pub text_secondary: Option<String>, |
| 267 | + #[serde(default)] |
| 268 | + pub text_error: Option<String>, |
| 269 | + #[serde(default)] |
| 270 | + pub text_info: Option<String>, |
| 271 | + #[serde(default)] |
| 272 | + pub accent: Option<String>, |
| 273 | + #[serde(default)] |
| 274 | + pub font_family: Option<String>, |
| 275 | + #[serde(default)] |
| 276 | + pub font_size_normal: Option<i32>, |
| 277 | + #[serde(default)] |
| 278 | + pub font_size_large: Option<i32>, |
| 279 | + #[serde(default)] |
| 280 | + pub font_size_title: Option<i32>, |
| 281 | + #[serde(default)] |
| 282 | + pub corner_radius: Option<f64>, |
| 283 | +} |
| 284 | + |
| 285 | +impl ThemeConfig { |
| 286 | + /// Convert to Theme, applying parsed colors over defaults |
| 287 | + pub fn into_theme(self, accessibility: &AccessibilityConfig) -> Theme { |
| 288 | + let mut base = if accessibility.high_contrast { |
| 289 | + Theme::high_contrast() |
| 290 | + } else { |
| 291 | + Theme::default() |
| 292 | + }; |
| 293 | + |
| 294 | + // Apply custom colors |
| 295 | + if let Some(ref s) = self.panel_background { |
| 296 | + if let Some(c) = Color::parse(s) { |
| 297 | + base.panel_background = c; |
| 298 | + } |
| 299 | + } |
| 300 | + if let Some(ref s) = self.background_overlay { |
| 301 | + if let Some(c) = Color::parse(s) { |
| 302 | + base.background_overlay = c; |
| 303 | + } |
| 304 | + } |
| 305 | + if let Some(ref s) = self.text_primary { |
| 306 | + if let Some(c) = Color::parse(s) { |
| 307 | + base.text_primary = c; |
| 308 | + } |
| 309 | + } |
| 310 | + if let Some(ref s) = self.text_secondary { |
| 311 | + if let Some(c) = Color::parse(s) { |
| 312 | + base.text_secondary = c; |
| 313 | + } |
| 314 | + } |
| 315 | + if let Some(ref s) = self.text_error { |
| 316 | + if let Some(c) = Color::parse(s) { |
| 317 | + base.text_error = c; |
| 318 | + } |
| 319 | + } |
| 320 | + if let Some(ref s) = self.text_info { |
| 321 | + if let Some(c) = Color::parse(s) { |
| 322 | + base.text_info = c; |
| 323 | + } |
| 324 | + } |
| 325 | + if let Some(ref s) = self.accent { |
| 326 | + if let Some(c) = Color::parse(s) { |
| 327 | + base.accent = c; |
| 328 | + // Derive hover color (slightly brighter) |
| 329 | + base.accent_hover = Color::rgba( |
| 330 | + (c.r + 0.1).min(1.0), |
| 331 | + (c.g + 0.1).min(1.0), |
| 332 | + (c.b + 0.1).min(1.0), |
| 333 | + c.a, |
| 334 | + ); |
| 335 | + base.input_background_focused = Color::rgba(c.r * 0.5, c.g * 0.5, c.b * 0.5, 1.0); |
| 336 | + base.input_border = c; |
| 337 | + base.button_background = c; |
| 338 | + } |
| 339 | + } |
| 340 | + |
| 341 | + // Typography |
| 342 | + if let Some(font) = self.font_family { |
| 343 | + base.font_family = font; |
| 344 | + } |
| 345 | + if let Some(size) = self.font_size_normal { |
| 346 | + base.font_size_normal = size; |
| 347 | + } |
| 348 | + if let Some(size) = self.font_size_large { |
| 349 | + base.font_size_large = size; |
| 350 | + } |
| 351 | + if let Some(size) = self.font_size_title { |
| 352 | + base.font_size_title = size; |
| 353 | + } |
| 354 | + |
| 355 | + // Layout |
| 356 | + if let Some(radius) = self.corner_radius { |
| 357 | + base.corner_radius = radius; |
| 358 | + } |
| 359 | + |
| 360 | + // Apply accessibility modifiers |
| 361 | + if accessibility.large_text { |
| 362 | + base = base.with_large_text(); |
| 363 | + } |
| 364 | + |
| 365 | + base |
| 366 | + } |
| 367 | +} |