iot-web/src/utils/theme.ts

// 处理主题样式
export const handleThemeStyle = (theme: string) => {
  document.documentElement.style.setProperty('--el-color-primary', theme)
  for (let i = 1; i <= 9; i++) {
    document.documentElement.style.setProperty(`--el-color-primary-light-${i}`, `${getLightColor(theme, i / 10)}`)
  }
  for (let i = 1; i <= 9; i++) {
    document.documentElement.style.setProperty(`--el-color-primary-dark-${i}`, `${getDarkColor(theme, i / 10)}`)
  }
}

// hex颜色转rgb颜色
export const hexToRgb = (str: string): string[] => {
  str = str.replace('#', '')
  const hexs = str.match(/../g)
  for (let i = 0; i < 3; i++) {
    if (hexs) {
      hexs[i] = String(parseInt(hexs[i], 16))
    }
  }
  return hexs ? hexs : []
}

// rgb颜色转Hex颜色
export const rgbToHex = (r: string, g: string, b: string) => {
  const hexs = [Number(r).toString(16), Number(g).toString(16), Number(b).toString(16)]
  for (let i = 0; i < 3; i++) {
    if (hexs[i].length == 1) {
      hexs[i] = `0${hexs[i]}`
    }
  }
  return `#${hexs.join('')}`
}

// 变浅颜色值
export const getLightColor = (color: string, level: number) => {
  const rgb = hexToRgb(color)
  for (let i = 0; i < 3; i++) {
    const s = (255 - Number(rgb[i])) * level + Number(rgb[i])
    rgb[i] = String(Math.floor(s))
  }
  return rgbToHex(rgb[0], rgb[1], rgb[2])
}

// 变深颜色值
export const getDarkColor = (color: string, level: number) => {
  const rgb = hexToRgb(color)
  for (let i = 0; i < 3; i++) {
    rgb[i] = String(Math.floor(Number(rgb[i]) * (1 - level)))
  }
  return rgbToHex(rgb[0], rgb[1], rgb[2])
}