82 lines
3.2 KiB
JavaScript
82 lines
3.2 KiB
JavaScript
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// 根据内容设置列表宽度
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function flexColumnWidth(str, arr1, fontNum = 4, flag = 'max') {
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// str为该列的字段名(传字符串);tableData为该表格的数据源(传变量);
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// fontNum为该列标题字体个数(默认为4);
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// flag为可选值，可不传该参数,传参时可选'max'或'equal',默认为'max'
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// flag为'max'则设置列宽适配该列中宽度最大的内容,flag为'equal'则设置列宽适配该列中第一行内容的宽度。
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str = str + '';
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// 验证输入参数
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if (!arr1 || !arr1.length) return fontNum * 14 + 5;
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if (!str || !str.length) return fontNum * 14 + 5;
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// 计算单个内容的宽度
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const calculateContentWidth = (content) => {
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let width = 0;
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const contentStr = content + '';
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if (contentStr.includes('长') && contentStr.includes('宽') && contentStr.includes('高')) {
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width += 23;
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}
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for (const char of contentStr) {
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if ((char >= 'A' && char <= 'Z') || (char >= 'a' && char <= 'z') || (char >= '0' && char <= '9')) {
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// 英文字符，分配8个单位宽度
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width += 8;
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} else if ((char >= '\u4e00' && char <= '\u9fa5') || (char >= '\uff00' && char <= '\uffef') ||
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char === '×' || char === 'Φ' || char === '（' || char === '）' || char === '，' ||
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char === '。' || char === '！' || char === '？' || char === '：' || char === '；' || char === '、' ||
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char === '“' || char === '”' || char === '‘' || char === '’' || char === '《' || char === '》') {
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// 中文字符、全角标点及特定符号，分配13个单位宽度
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width += 13;
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} else if (char === ' ' || char === ',' || char === '.') {
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// 空格，分配4个单位宽度
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width += 4;
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} else {
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// 其他字符，分配4个单位宽度
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width += 8;
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}
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}
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return width;
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};
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let targetWidth = 0;
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if (flag === 'equal') {
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// 获取该列中第一个不为空的数据并计算其宽度
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for (let i = 0; i < arr1.length; i++) {
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if (arr1[i][str] !== null && arr1[i][str] !== undefined) {
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targetWidth = calculateContentWidth(arr1[i][str]);
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break;
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}
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}
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} else {
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// 计算每一项的宽度，找出最大宽度
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let maxWidth = 0;
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for (let i = 0; i < arr1.length; i++) {
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if (arr1[i][str] === null) return;
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const currentWidth = calculateContentWidth(arr1[i][str]);
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if (currentWidth > maxWidth) {
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maxWidth = currentWidth;
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}
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if (currentWidth > maxWidth) {
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maxWidth = currentWidth;
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}
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}
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targetWidth = maxWidth;
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}
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// 计算标题最小宽度
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const titleMinWidth = fontNum * 14;
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// 比较内容宽度和标题最小宽度，取较大值
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const flexWidth = Math.max(targetWidth, titleMinWidth);
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// 返回最终宽度，加上额外的5px
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return flexWidth + 5;
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}
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window.flexColumnWidth = flexColumnWidth
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