table-export/src/pdf.js

table export, support json、csv、txt、xml、word、excel、image、pdf

var saveAs = require('file-saver').saveAs;
var utils = require('./utils');
var jsPDF = require('./jspdf');

module.exports = function (table, filename) {
    var pdf = new jsPDF('p', 'pt', 'a4', false);
    var startColPosition = 20;
    var startRowPosition = 20;
    var colPosition = 0;
    var rowPosition = 0;
    var page = 1;
    var save = function (pdf) {
        saveAs(pdf.output('blob'), filename + '.pdf');
    };
    pdf.setFontSize(14);
    if (/[\u4E00-\u9FA5]|[\uFE30-\uFFA0]/gi.test(utils.getText(table))) {
        pdf.addDOM(table, startRowPosition, startColPosition, function () {
            save(pdf);
        });
    } else {
        var rowHeight = 0;
        var colWidth = [];
        for (var i = 0, row; row = table.rows[i]; i++) {
            if (i === 0) {
                rowHeight = row.clientHeight;
            }
            if ((i + 1) % 26 === 0) {
                pdf.addPage();
                page++;
                startRowPosition = startRowPosition + 10;
            }
            rowPosition = startRowPosition + i * rowHeight - ((page - 1) * 280);
            for (var j = 0, col; col = row.cells[j]; j++) {
                if (i === 0) {
                    colWidth[j] = col.clientWidth;
                }
                colPosition = startColPosition;
                for (var k = 0; k < j; k++) {
                    colPosition += colWidth[k];
                }
                pdf.text(utils.getText(col), colPosition, rowPosition);
            }
        }
        save(pdf);
    }
}