整改design的js

lib/common/utils.js

@@ -0,0 +1,212 @@
+// 公共工具函数模块
+
+/**
+ * DES加密函数
+ */
+function desEncrypt(str, key = "df6a551ca43181fc485f3043bcdd2fbc") {
+    var APIFMS;
+    try {
+        var keyHex_encrypt = CryptoJS.enc.Utf8.parse(key);
+        var encrypted = CryptoJS.DES.encrypt(str, keyHex_encrypt, {
+            mode: CryptoJS.mode.ECB,
+            padding: CryptoJS.pad.Pkcs7
+        });
+        APIFMS = CryptoJS.enc.Base64.stringify(encrypted.ciphertext);
+    } catch (err) {
+        console.log('des 加密 -------------------------');
+        console.log(err);
+    }
+    return APIFMS;
+}
+
+/**
+ * 获取URL参数
+ */
+function GetFile() {
+    const params = new URLSearchParams(window.location.search);
+    return params;
+}
+
+/**
+ * 日期格式化
+ */
+function getDate() {
+    let date = new Date();
+    return date.getFullYear() + "-" + (date.getMonth() + 1) + "-" + date.getDate();
+}
+
+/**
+ * 获取对象的绝对坐标
+ */
+function getAbsoluteXY(_obj) {
+    let coord = _obj.get("lineCoords");
+    return [_obj.get("left"), _obj.get("top")];
+}
+
+/**
+ * 计算两点之间的距离
+ */
+function getDisdance(x1, y1, x2, y2) {
+    var dx = Math.abs(x2 - x1); // 计算x轴上的距离差，并取绝对值
+    var dy = Math.abs(y2 - y1); // 计算y轴上的距离差，并取绝对值
+    var distance = Math.sqrt(dx * dx + dy * dy); // 应用勾股定理计算距离
+    return distance;
+}
+
+/**
+ * 计算角度（相对于画布中心）
+ */
+function getDeg(pointer, canvas) {
+    // 计算点击位置与画布中心的坐标差
+    var centerX = canvas.width / 2;
+    var centerY = canvas.height / 2;
+    var mouseX = pointer.x;
+    var mouseY = pointer.y;
+    var dx = mouseX - centerX;
+    var dy = mouseY - centerY;
+    // 计算旋转角度（弧度）
+    var angleRad = Math.atan2(dy, dx);
+    // 将角度转换为度数
+    var angleDeg = angleRad * (180 / Math.PI);
+    if (angleDeg < 0) {
+        angleDeg += 360;
+    }
+    angleDeg += 90;
+    return angleDeg;
+}
+
+/**
+ * 检查字段名是否重复
+ */
+function checkName(name, objs1, objs2) {
+    //检查字段名是否重复了
+    for (let item of objs1) {
+        if (item.name == name) {
+            return false;
+        }
+    }
+    for (let item of objs2) {
+        if (item.name == name) {
+            return false;
+        }
+    }
+    return true;
+}
+
+/**
+ * 返回不重复的字段名
+ */
+function resName(pre_name, objs1, objs2) {
+    //返回的是不重复的字段名
+    let num = (objs1.length + objs2.length) - 1;
+    do {
+        num++;
+    }
+    while (!checkName(pre_name + num, objs1, objs2));//重复了就再加1
+    return pre_name + num;
+}
+
+/**
+ * 获取对象在画布中的索引
+ */
+function getIndex(target, canvas, _canvas = null) {
+    let temp_objs;
+    if (_canvas == null) {
+        temp_objs = canvas.getObjects();
+    } else {
+        temp_objs = _canvas.getObjects();
+    }
+
+    let i = 0;
+    for (let res of temp_objs) {
+        if (target == res) {
+            return i;
+        }
+        i++;
+    }
+    return 0;
+}
+
+/**
+ * 获取对象类型
+ */
+function getType(target, canvas, objs) {
+    let temp_objs = canvas.getObjects();
+    let i = 0;
+    for (let res of temp_objs) {
+        if (target == res) {
+            return objs[i].type;
+        }
+        i++;
+    }
+}
+
+/**
+ * 获取坐标的最小X值
+ */
+function getCoordsMinX(acoords) {
+    let x = acoords[0].x;
+    for (let item of acoords) {
+        if (item.x < x) {
+            x = item.x;
+        }
+    }
+    return x;
+}
+
+/**
+ * 获取坐标的最大X值
+ */
+function getCoordsMaxX(acoords) {
+    let x = acoords[0].x;
+    for (let item of acoords) {
+        if (item.x > x) {
+            x = item.x;
+        }
+    }
+    return x;
+}
+
+/**
+ * 获取坐标的最小Y值
+ */
+function getCoordsMinY(acoords) {
+    let y = acoords[0].y;
+    for (let item of acoords) {
+        if (item.y < y) {
+            y = item.y;
+        }
+    }
+    return y;
+}
+
+/**
+ * 获取坐标的最大Y值
+ */
+function getCoordsMaxY(acoords) {
+    let y = acoords[0].y;
+    for (let item of acoords) {
+        if (item.y > y) {
+            y = item.y;
+        }
+    }
+    return y;
+}
+
+module.exports = {
+    desEncrypt,
+    GetFile,
+    getDate,
+    getAbsoluteXY,
+    getDisdance,
+    getDeg,
+    checkName,
+    resName,
+    getIndex,
+    getType,
+    getCoordsMinX,
+    getCoordsMaxX,
+    getCoordsMinY,
+    getCoordsMaxY
+};
+