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frontend/node_modules/@rc-component/qrcode/lib/utils.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.isSupportPath2d = exports.getMarginSize = exports.getImageSettings = exports.generatePath = exports.excavateModules = exports.SPEC_MARGIN_SIZE = exports.ERROR_LEVEL_MAP = exports.DEFAULT_SIZE = exports.DEFAULT_NEED_MARGIN = exports.DEFAULT_MINVERSION = exports.DEFAULT_MARGIN_SIZE = exports.DEFAULT_LEVEL = exports.DEFAULT_IMG_SCALE = exports.DEFAULT_FRONT_COLOR = exports.DEFAULT_BACKGROUND_COLOR = void 0;
+var _qrcodegen = require("./libs/qrcodegen");
+// Part logic is from `qrcode.react`. (ISC License)
+// https://github.com/zpao/qrcode.react
+
+// ==========================================================
+
+// =================== ERROR_LEVEL ==========================
+var ERROR_LEVEL_MAP = exports.ERROR_LEVEL_MAP = {
+  L: _qrcodegen.Ecc.LOW,
+  M: _qrcodegen.Ecc.MEDIUM,
+  Q: _qrcodegen.Ecc.QUARTILE,
+  H: _qrcodegen.Ecc.HIGH
+};
+
+// =================== DEFAULT_VALUE ==========================
+var DEFAULT_SIZE = exports.DEFAULT_SIZE = 128;
+var DEFAULT_LEVEL = exports.DEFAULT_LEVEL = 'L';
+var DEFAULT_BACKGROUND_COLOR = exports.DEFAULT_BACKGROUND_COLOR = '#FFFFFF';
+var DEFAULT_FRONT_COLOR = exports.DEFAULT_FRONT_COLOR = '#000000';
+var DEFAULT_NEED_MARGIN = exports.DEFAULT_NEED_MARGIN = false;
+var DEFAULT_MINVERSION = exports.DEFAULT_MINVERSION = 1;
+var SPEC_MARGIN_SIZE = exports.SPEC_MARGIN_SIZE = 4;
+var DEFAULT_MARGIN_SIZE = exports.DEFAULT_MARGIN_SIZE = 0;
+var DEFAULT_IMG_SCALE = exports.DEFAULT_IMG_SCALE = 0.1;
+
+// =================== UTILS ==========================
+/**
+ * Generate a path string from modules
+ * @param modules
+ * @param margin
+ * @returns
+ */
+var generatePath = exports.generatePath = function generatePath(modules) {
+  var margin = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
+  var ops = [];
+  modules.forEach(function (row, y) {
+    var start = null;
+    row.forEach(function (cell, x) {
+      if (!cell && start !== null) {
+        ops.push("M".concat(start + margin, " ").concat(y + margin, "h").concat(x - start, "v1H").concat(start + margin, "z"));
+        start = null;
+        return;
+      }
+      if (x === row.length - 1) {
+        if (!cell) {
+          return;
+        }
+        if (start === null) {
+          ops.push("M".concat(x + margin, ",").concat(y + margin, " h1v1H").concat(x + margin, "z"));
+        } else {
+          ops.push("M".concat(start + margin, ",").concat(y + margin, " h").concat(x + 1 - start, "v1H").concat(start + margin, "z"));
+        }
+        return;
+      }
+      if (cell && start === null) {
+        start = x;
+      }
+    });
+  });
+  return ops.join('');
+};
+
+/**
+ * Excavate modules
+ * @param modules
+ * @param excavation
+ * @returns
+ */
+var excavateModules = exports.excavateModules = function excavateModules(modules, excavation) {
+  return modules.slice().map(function (row, y) {
+    if (y < excavation.y || y >= excavation.y + excavation.h) {
+      return row;
+    }
+    return row.map(function (cell, x) {
+      if (x < excavation.x || x >= excavation.x + excavation.w) {
+        return cell;
+      }
+      return false;
+    });
+  });
+};
+
+/**
+ * Get image settings
+ * @param cells The modules of the QR code
+ * @param size The size of the QR code
+ * @param margin
+ * @param imageSettings
+ * @returns
+ */
+var getImageSettings = exports.getImageSettings = function getImageSettings(cells, size, margin, imageSettings) {
+  if (imageSettings == null) {
+    return null;
+  }
+  var numCells = cells.length + margin * 2;
+  var defaultSize = Math.floor(size * DEFAULT_IMG_SCALE);
+  var scale = numCells / size;
+  var w = (imageSettings.width || defaultSize) * scale;
+  var h = (imageSettings.height || defaultSize) * scale;
+  var x = imageSettings.x == null ? cells.length / 2 - w / 2 : imageSettings.x * scale;
+  var y = imageSettings.y == null ? cells.length / 2 - h / 2 : imageSettings.y * scale;
+  var opacity = imageSettings.opacity == null ? 1 : imageSettings.opacity;
+  var excavation = null;
+  if (imageSettings.excavate) {
+    var floorX = Math.floor(x);
+    var floorY = Math.floor(y);
+    var ceilW = Math.ceil(w + x - floorX);
+    var ceilH = Math.ceil(h + y - floorY);
+    excavation = {
+      x: floorX,
+      y: floorY,
+      w: ceilW,
+      h: ceilH
+    };
+  }
+  var crossOrigin = imageSettings.crossOrigin;
+  return {
+    x: x,
+    y: y,
+    h: h,
+    w: w,
+    excavation: excavation,
+    opacity: opacity,
+    crossOrigin: crossOrigin
+  };
+};
+
+/**
+ * Get margin size
+ * @param needMargin Whether need margin
+ * @param marginSize Custom margin size
+ * @returns
+ */
+var getMarginSize = exports.getMarginSize = function getMarginSize(needMargin, marginSize) {
+  if (marginSize != null) {
+    return Math.max(Math.floor(marginSize), 0);
+  }
+  return needMargin ? SPEC_MARGIN_SIZE : DEFAULT_MARGIN_SIZE;
+};
+
+/**
+ * Check if Path2D is supported
+ */
+var isSupportPath2d = exports.isSupportPath2d = function () {
+  try {
+    new Path2D().addPath(new Path2D());
+  } catch (_unused) {
+    return false;
+  }
+  return true;
+}();