/* * OpenSTAManager: il software gestionale open source per l'assistenza tecnica e la fatturazione * Copyright (C) DevCode s.r.l. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ class LineChart extends Stat { constructor(calendar, file, data = {}, chart){ super(calendar, file, data); this.chart = chart; } add(start, end, color = null) { var calendar_id = this.calendar.id; var chart = this.chart; var color = color ? color : this.getRandomColor(); this.getData(start, end, function(response) { var data = JSON.parse(response); var label = data.label; var dataset = []; var labels = []; data.results.forEach(function (item) { dataset.push(item.result); var date = moment().month(item.month - 1).year(item.year); labels.push(date.format("MMMM YYYY")); }); while (chart.data.labels.length < data.results.length) { chart.data.labels.push(""); } chart.data.datasets.push({ calendar_id: calendar_id, label: label, backgroundColor: color + '55', borderColor: color, data: dataset, labels: labels, fill: true, }); chart.update(); }); } update(start, end) { var color = this.remove(); this.add(start, end, color); } getRandomColor() { var letters = '0123456789ABCDEF'; var color = '#'; for (var i = 0; i < 6; i++) { color += letters[Math.floor(Math.random() * 16)]; } return color; } remove() { var chart = this.chart; var calendar_id = this.calendar.id; var max_length = 0; var dataset_index = undefined; chart.data.datasets.forEach(function (item, index) { if(item.calendar_id == calendar_id) { dataset_index = index; } else { if (item.data.length > max_length) { max_length = item.data.length; } } }); var color = null; if (dataset_index != undefined) { color = chart.data.datasets[dataset_index].backgroundColor; color = color.substr(0, 7); chart.data.datasets.splice(dataset_index, 1); chart.data.labels.splice(dataset_index, 1); } while (chart.data.labels.length > max_length) { chart.data.labels.pop(""); } chart.update(); return color; } }