mirror of
https://github.com/zsviczian/obsidian-excalidraw-plugin.git
synced 2025-08-06 05:46:28 +00:00
290 lines
7.5 KiB
Markdown
290 lines
7.5 KiB
Markdown
/*
|
|
|
|
|
|
Download this file and save to your Obsidian Vault including the first line, or open it in "Raw" and copy the entire contents to Obsidian.
|
|
|
|
|
|
|
|
This script lightens the background color of the selected element by 2% at a time.
|
|
|
|
You can use this script several times until you are satisfied. It is recommended to set a shortcut key for this script so that you can quickly try to DARKEN and LIGHTEN the color effect.
|
|
|
|
In contrast to the `Modify background color opacity` script, the advantage is that the background color of the element is not affected by the canvas color, and the color value does not appear in a strange rgba() form.
|
|
|
|
The color conversion method was copied from [color-convert](https://github.com/Qix-/color-convert).
|
|
|
|
```javascript
|
|
*/
|
|
|
|
const elements = ea
|
|
.getViewSelectedElements()
|
|
.filter((el) =>
|
|
["rectangle", "ellipse", "diamond", "image", "line"].includes(el.type)
|
|
);
|
|
ea.copyViewElementsToEAforEditing(elements);
|
|
for (const el of ea.getElements()) {
|
|
const color = colorNameToHex(el.backgroundColor);
|
|
const rgbColor = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(color);
|
|
if (rgbColor) {
|
|
const r = parseInt(rgbColor[1], 16);
|
|
const g = parseInt(rgbColor[2], 16);
|
|
const b = parseInt(rgbColor[3], 16);
|
|
const originalRgb = [r, g, b];
|
|
const hsl = rgbToHsl(originalRgb);
|
|
const step = 2;
|
|
const newLightness = hsl[2] + step;
|
|
if (newLightness < 100) {
|
|
hsl[2] = newLightness;
|
|
}
|
|
const newRgb = hslToRgb(hsl);
|
|
el.backgroundColor = "#" + rgbToHexString(newRgb);
|
|
}
|
|
}
|
|
await ea.addElementsToView(false, false);
|
|
|
|
function rgbToHexString(args) {
|
|
const integer =
|
|
((Math.round(args[0]) & 0xff) << 16) +
|
|
((Math.round(args[1]) & 0xff) << 8) +
|
|
(Math.round(args[2]) & 0xff);
|
|
|
|
const string = integer.toString(16).toUpperCase();
|
|
return "000000".substring(string.length) + string;
|
|
}
|
|
|
|
function hslToRgb(hsl) {
|
|
const h = hsl[0] / 360;
|
|
const s = hsl[1] / 100;
|
|
const l = hsl[2] / 100;
|
|
let t2;
|
|
let t3;
|
|
let val;
|
|
|
|
if (s === 0) {
|
|
val = l * 255;
|
|
return [val, val, val];
|
|
}
|
|
|
|
if (l < 0.5) {
|
|
t2 = l * (1 + s);
|
|
} else {
|
|
t2 = l + s - l * s;
|
|
}
|
|
|
|
const t1 = 2 * l - t2;
|
|
|
|
const rgb = [0, 0, 0];
|
|
for (let i = 0; i < 3; i++) {
|
|
t3 = h + (1 / 3) * -(i - 1);
|
|
if (t3 < 0) {
|
|
t3++;
|
|
}
|
|
|
|
if (t3 > 1) {
|
|
t3--;
|
|
}
|
|
|
|
if (6 * t3 < 1) {
|
|
val = t1 + (t2 - t1) * 6 * t3;
|
|
} else if (2 * t3 < 1) {
|
|
val = t2;
|
|
} else if (3 * t3 < 2) {
|
|
val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
|
|
} else {
|
|
val = t1;
|
|
}
|
|
|
|
rgb[i] = val * 255;
|
|
}
|
|
|
|
return rgb;
|
|
}
|
|
|
|
function rgbToHsl(rgb) {
|
|
const r = rgb[0] / 255;
|
|
const g = rgb[1] / 255;
|
|
const b = rgb[2] / 255;
|
|
const min = Math.min(r, g, b);
|
|
const max = Math.max(r, g, b);
|
|
const delta = max - min;
|
|
let h;
|
|
let s;
|
|
|
|
if (max === min) {
|
|
h = 0;
|
|
} else if (r === max) {
|
|
h = (g - b) / delta;
|
|
} else if (g === max) {
|
|
h = 2 + (b - r) / delta;
|
|
} else if (b === max) {
|
|
h = 4 + (r - g) / delta;
|
|
}
|
|
|
|
h = Math.min(h * 60, 360);
|
|
|
|
if (h < 0) {
|
|
h += 360;
|
|
}
|
|
|
|
const l = (min + max) / 2;
|
|
|
|
if (max === min) {
|
|
s = 0;
|
|
} else if (l <= 0.5) {
|
|
s = delta / (max + min);
|
|
} else {
|
|
s = delta / (2 - max - min);
|
|
}
|
|
|
|
return [h, s * 100, l * 100];
|
|
}
|
|
|
|
function colorNameToHex(color) {
|
|
const colors = {
|
|
aliceblue: "#f0f8ff",
|
|
antiquewhite: "#faebd7",
|
|
aqua: "#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",
|
|
cyan: "#00ffff",
|
|
darkblue: "#00008b",
|
|
darkcyan: "#008b8b",
|
|
darkgoldenrod: "#b8860b",
|
|
darkgray: "#a9a9a9",
|
|
darkgreen: "#006400",
|
|
darkkhaki: "#bdb76b",
|
|
darkmagenta: "#8b008b",
|
|
darkolivegreen: "#556b2f",
|
|
darkorange: "#ff8c00",
|
|
darkorchid: "#9932cc",
|
|
darkred: "#8b0000",
|
|
darksalmon: "#e9967a",
|
|
darkseagreen: "#8fbc8f",
|
|
darkslateblue: "#483d8b",
|
|
darkslategray: "#2f4f4f",
|
|
darkturquoise: "#00ced1",
|
|
darkviolet: "#9400d3",
|
|
deeppink: "#ff1493",
|
|
deepskyblue: "#00bfff",
|
|
dimgray: "#696969",
|
|
dodgerblue: "#1e90ff",
|
|
firebrick: "#b22222",
|
|
floralwhite: "#fffaf0",
|
|
forestgreen: "#228b22",
|
|
fuchsia: "#ff00ff",
|
|
gainsboro: "#dcdcdc",
|
|
ghostwhite: "#f8f8ff",
|
|
gold: "#ffd700",
|
|
goldenrod: "#daa520",
|
|
gray: "#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: "#add8e6",
|
|
lightcoral: "#f08080",
|
|
lightcyan: "#e0ffff",
|
|
lightgoldenrodyellow: "#fafad2",
|
|
lightgrey: "#d3d3d3",
|
|
lightgreen: "#90ee90",
|
|
lightpink: "#ffb6c1",
|
|
lightsalmon: "#ffa07a",
|
|
lightseagreen: "#20b2aa",
|
|
lightskyblue: "#87cefa",
|
|
lightslategray: "#778899",
|
|
lightsteelblue: "#b0c4de",
|
|
lightyellow: "#ffffe0",
|
|
lime: "#00ff00",
|
|
limegreen: "#32cd32",
|
|
linen: "#faf0e6",
|
|
magenta: "#ff00ff",
|
|
maroon: "#800000",
|
|
mediumaquamarine: "#66cdaa",
|
|
mediumblue: "#0000cd",
|
|
mediumorchid: "#ba55d3",
|
|
mediumpurple: "#9370d8",
|
|
mediumseagreen: "#3cb371",
|
|
mediumslateblue: "#7b68ee",
|
|
mediumspringgreen: "#00fa9a",
|
|
mediumturquoise: "#48d1cc",
|
|
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: "#d87093",
|
|
papayawhip: "#ffefd5",
|
|
peachpuff: "#ffdab9",
|
|
peru: "#cd853f",
|
|
pink: "#ffc0cb",
|
|
plum: "#dda0dd",
|
|
powderblue: "#b0e0e6",
|
|
purple: "#800080",
|
|
rebeccapurple: "#663399",
|
|
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: "#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",
|
|
};
|
|
if (typeof colors[color.toLowerCase()] != "undefined")
|
|
return colors[color.toLowerCase()];
|
|
return color;
|
|
}
|