tdesign-mobile-vue/es/_common/js/qrcode/utils.mjs.map

tdesign-mobile-vue

{"version":3,"file":"utils.mjs","sources":["../../../../src/_common/js/qrcode/utils.ts"],"sourcesContent":["import type {\n  CrossOrigin,\n  ERROR_LEVEL_MAPPED_TYPE,\n  ErrorCorrectionLevel,\n  Excavation,\n  ImageSettings,\n  Modules,\n} from './types';\nimport { Ecc } from './qrcodegen';\n\n// =================== ERROR_LEVEL ==========================\nexport const ERROR_LEVEL_MAP: ERROR_LEVEL_MAPPED_TYPE = {\n  L: Ecc.LOW,\n  M: Ecc.MEDIUM,\n  Q: Ecc.QUARTILE,\n  H: Ecc.HIGH,\n} as const;\n\n// =================== DEFAULT_VALUE ==========================\nexport const DEFAULT_SIZE = 160;\nexport const DEFAULT_LEVEL: ErrorCorrectionLevel = 'M';\nexport const DEFAULT_BACKGROUND_COLOR = '#FFFFFF';\nexport const DEFAULT_FRONT_COLOR = '#000000';\nexport const DEFAULT_NEED_MARGIN = false;\nexport const DEFAULT_MINVERSION = 1;\nexport const SPEC_MARGIN_SIZE = 4;\nexport const DEFAULT_MARGIN_SIZE = 0;\nexport const DEFAULT_IMG_SCALE = 0.1;\n\n// =================== UTILS ==========================\n/**\n * Generate a path string from modules\n * @param modules\n * @param margin\n * @returns\n */\nexport const generatePath = (modules: Modules, margin: number = 0) => {\n  const ops: string[] = [];\n  modules.forEach((row, y) => {\n    let start: number | null = null;\n    row.forEach((cell, x) => {\n      if (!cell && start !== null) {\n        ops.push(`M${start + margin} ${y + margin}h${x - start}v1H${start + margin}z`);\n        start = null;\n        return;\n      }\n\n      if (x === row.length - 1) {\n        if (!cell) {\n          return;\n        }\n        if (start === null) {\n          ops.push(`M${x + margin},${y + margin} h1v1H${x + margin}z`);\n        } else {\n          ops.push(`M${start + margin},${y + margin} h${x + 1 - start}v1H${start + margin}z`);\n        }\n        return;\n      }\n\n      if (cell && start === null) {\n        start = x;\n      }\n    });\n  });\n  return ops.join('');\n};\n\n/**\n * Excavate modules\n * @param modules\n * @param excavation\n * @returns\n */\nexport const excavateModules = (modules: Modules, excavation: Excavation) =>\n  modules.slice().map((row, y) => {\n    if (y < excavation.y || y >= excavation.y + excavation.h) {\n      return row;\n    }\n    return row.map((cell, x) => {\n      if (x < excavation.x || x >= excavation.x + excavation.w) {\n        return cell;\n      }\n      return false;\n    });\n  });\n\n/**\n * Get image settings\n * @param cells The modules of the QR code\n * @param size The size of the QR code\n * @param margin\n * @param imageSettings\n * @returns\n */\nexport const getImageSettings = (\n  cells: Modules,\n  size: number,\n  margin: number,\n  imageSettings?: ImageSettings\n): null | {\n  x: number;\n  y: number;\n  h: number;\n  w: number;\n  excavation: Excavation | null;\n  opacity: number;\n  crossOrigin: CrossOrigin;\n} => {\n  if (imageSettings == null) {\n    return null;\n  }\n  const numCells = cells.length + margin * 2;\n  const defaultSize = Math.floor(size * DEFAULT_IMG_SCALE);\n  const scale = numCells / size;\n  const w = (imageSettings.width || defaultSize) * scale;\n  const h = (imageSettings.height || defaultSize) * scale;\n  const x = imageSettings.x == null ? cells.length / 2 - w / 2 : imageSettings.x * scale;\n  const y = imageSettings.y == null ? cells.length / 2 - h / 2 : imageSettings.y * scale;\n  const opacity = imageSettings.opacity == null ? 1 : imageSettings.opacity;\n\n  let excavation = null;\n  if (imageSettings.excavate) {\n    const floorX = Math.floor(x);\n    const floorY = Math.floor(y);\n    const ceilW = Math.ceil(w + x - floorX);\n    const ceilH = Math.ceil(h + y - floorY);\n    excavation = { x: floorX, y: floorY, w: ceilW, h: ceilH };\n  }\n\n  const { crossOrigin } = imageSettings;\n\n  return { x, y, h, w, excavation, opacity, crossOrigin };\n};\n\n/**\n * Get margin size\n * @param needMargin Whether need margin\n * @param marginSize Custom margin size\n * @returns\n */\nexport const getMarginSize = (needMargin: boolean, marginSize?: number) => {\n  if (marginSize != null) {\n    return Math.max(Math.floor(marginSize), 0);\n  }\n  return needMargin ? SPEC_MARGIN_SIZE : DEFAULT_MARGIN_SIZE;\n};\n\n/**\n * Check if Path2D is supported\n */\nexport const isSupportPath2d = (() => {\n  try {\n    new Path2D().addPath(new Path2D());\n  } catch {\n    return false;\n  }\n  return 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