use super::super::colors::{hsl_to_rgb, srgb};
use roxmltree::Node;
fn percent(node: Node, attr: &str) -> Option<f64> {
let value = node.attribute(attr)?;
let fraction = if let Some(p) = value.strip_suffix('%') {
p.parse::<f64>().ok()? / 100.
} else {
value.parse::<f64>().ok()? / 100_000.
};
fraction.is_finite().then(|| fraction.clamp(0., 1.))
}
pub(super) fn resolve(node: Node) -> Option<String> {
let rgb = match node.tag_name().name() {
"prstClr" => return preset(node.attribute("val")?).map(str::to_owned),
"scrgbClr" => [
percent(node, "r")?,
percent(node, "g")?,
percent(node, "b")?,
]
.map(srgb),
"hslClr" => {
let hue = node.attribute("hue")?.parse::<i32>().ok()?;
hsl_to_rgb(
f64::from(hue.rem_euclid(21_600_000)) / 3_600_000.,
percent(node, "sat")?,
percent(node, "lum")?,
)
}
_ => return None,
};
let [r, g, b] = rgb.map(|v| (v * 255.).round() as u8);
Some(format!("#{r:02x}{g:02x}{b:02x}"))
}
fn preset(name: &str) -> Option<&'static str> {
Some(match name {
"aliceBlue" => "#f0f8ff",
"antiqueWhite" => "#faebd7",
"aqua" | "cyan" => "#00ffff",
"aquamarine" => "#7fffd4",
"azure" => "#f0ffff",
"beige" => "#f5f5dc",
"bisque" => "#ffe4c4",
"black" => "#000000",
"blanchedAlmond" => "#ffebcd",
"blue" => "#0000ff",
"blueViolet" => "#8a2be2",
"brown" => "#a52a2a",
"burlyWood" => "#deb887",
"cadetBlue" => "#5f9ea0",
"chartreuse" => "#7fff00",
"chocolate" => "#d2691e",
"coral" => "#ff7f50",
"cornflowerBlue" => "#6495ed",
"cornsilk" => "#fff8dc",
"crimson" => "#dc143c",
"darkBlue" | "dkBlue" => "#00008b",
"darkCyan" | "dkCyan" => "#008b8b",
"darkGoldenrod" | "dkGoldenrod" => "#b8860b",
"darkGray" | "darkGrey" | "dkGray" | "dkGrey" => "#a9a9a9",
"darkGreen" | "dkGreen" => "#006400",
"darkKhaki" | "dkKhaki" => "#bdb76b",
"darkMagenta" | "dkMagenta" => "#8b008b",
"darkOliveGreen" | "dkOliveGreen" => "#556b2f",
"darkOrange" | "dkOrange" => "#ff8c00",
"darkOrchid" | "dkOrchid" => "#9932cc",
"darkRed" | "dkRed" => "#8b0000",
"darkSalmon" | "dkSalmon" => "#e9967a",
"darkSeaGreen" | "dkSeaGreen" => "#8fbc8f",
"darkSlateBlue" | "dkSlateBlue" => "#483d8b",
"darkSlateGray" | "darkSlateGrey" | "dkSlateGray" | "dkSlateGrey" => "#2f4f4f",
"darkTurquoise" | "dkTurquoise" => "#00ced1",
"darkViolet" | "dkViolet" => "#9400d3",
"deepPink" => "#ff1493",
"deepSkyBlue" => "#00bfff",
"dimGray" | "dimGrey" => "#696969",
"dodgerBlue" => "#1e90ff",
"firebrick" => "#b22222",
"floralWhite" => "#fffaf0",
"forestGreen" => "#228b22",
"fuchsia" | "magenta" => "#ff00ff",
"gainsboro" => "#dcdcdc",
"ghostWhite" => "#f8f8ff",
"gold" => "#ffd700",
"goldenrod" => "#daa520",
"gray" | "grey" => "#808080",
"green" => "#008000",
"greenYellow" => "#adff2f",
"honeydew" => "#f0fff0",
"hotPink" => "#ff69b4",
"indianRed" => "#cd5c5c",
"indigo" => "#4b0082",
"ivory" => "#fffff0",
"khaki" => "#f0e68c",
"lavender" => "#e6e6fa",
"lavenderBlush" => "#fff0f5",
"lawnGreen" => "#7cfc00",
"lemonChiffon" => "#fffacd",
"lightBlue" | "ltBlue" => "#add8e6",
"lightCoral" | "ltCoral" => "#f08080",
"lightCyan" | "ltCyan" => "#e0ffff",
"lightGoldenrodYellow" | "ltGoldenrodYellow" => "#fafad2",
"lightGray" | "lightGrey" | "ltGray" | "ltGrey" => "#d3d3d3",
"lightGreen" | "ltGreen" => "#90ee90",
"lightPink" | "ltPink" => "#ffb6c1",
"lightSalmon" | "ltSalmon" => "#ffa07a",
"lightSeaGreen" | "ltSeaGreen" => "#20b2aa",
"lightSkyBlue" | "ltSkyBlue" => "#87cefa",
"lightSlateGray" | "lightSlateGrey" | "ltSlateGray" | "ltSlateGrey" => "#778899",
"lightSteelBlue" | "ltSteelBlue" => "#b0c4de",
"lightYellow" | "ltYellow" => "#ffffe0",
"lime" => "#00ff00",
"limeGreen" => "#32cd32",
"linen" => "#faf0e6",
"maroon" => "#800000",
"medAquamarine" | "mediumAquamarine" => "#66cdaa",
"medBlue" | "mediumBlue" => "#0000cd",
"medOrchid" | "mediumOrchid" => "#ba55d3",
"medPurple" | "mediumPurple" => "#9370db",
"medSeaGreen" | "mediumSeaGreen" => "#3cb371",
"medSlateBlue" | "mediumSlateBlue" => "#7b68ee",
"medSpringGreen" | "mediumSpringGreen" => "#00fa9a",
"medTurquoise" | "mediumTurquoise" => "#48d1cc",
"medVioletRed" | "mediumVioletRed" => "#c71585",
"midnightBlue" => "#191970",
"mintCream" => "#f5fffa",
"mistyRose" => "#ffe4e1",
"moccasin" => "#ffe4b5",
"navajoWhite" => "#ffdead",
"navy" => "#000080",
"oldLace" => "#fdf5e6",
"olive" => "#808000",
"oliveDrab" => "#6b8e23",
"orange" => "#ffa500",
"orangeRed" => "#ff4500",
"orchid" => "#da70d6",
"paleGoldenrod" => "#eee8aa",
"paleGreen" => "#98fb98",
"paleTurquoise" => "#afeeee",
"paleVioletRed" => "#db7093",
"papayaWhip" => "#ffefd5",
"peachPuff" => "#ffdab9",
"peru" => "#cd853f",
"pink" => "#ffc0cb",
"plum" => "#dda0dd",
"powderBlue" => "#b0e0e6",
"purple" => "#800080",
"red" => "#ff0000",
"rosyBrown" => "#bc8f8f",
"royalBlue" => "#4169e1",
"saddleBrown" => "#8b4513",
"salmon" => "#fa8072",
"sandyBrown" => "#f4a460",
"seaGreen" => "#2e8b57",
"seaShell" => "#fff5ee",
"sienna" => "#a0522d",
"silver" => "#c0c0c0",
"skyBlue" => "#87ceeb",
"slateBlue" => "#6a5acd",
"slateGray" | "slateGrey" => "#708090",
"snow" => "#fffafa",
"springGreen" => "#00ff7f",
"steelBlue" => "#4682b4",
"tan" => "#d2b48c",
"teal" => "#008080",
"thistle" => "#d8bfd8",
"tomato" => "#ff6347",
"turquoise" => "#40e0d0",
"violet" => "#ee82ee",
"wheat" => "#f5deb3",
"white" => "#ffffff",
"whiteSmoke" => "#f5f5f5",
"yellow" => "#ffff00",
"yellowGreen" => "#9acd32",
_ => return None,
})
}