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Edit File: waterfall_change.js

/* ------------------------------------------------------------------------------
 *
 *  # Echarts - Change waterfall example
 *
 *  Demo JS code for change waterfall chart [light theme]
 *
 * ---------------------------------------------------------------------------- */

// Setup module
// ------------------------------

var EchartsWaterfallChangeLight = function() {

//
    // Setup module components
    //

// Change waterfall chart
    var _waterfallChangeLightExample = function() {
        if (typeof echarts == 'undefined') {
            console.warn('Warning - echarts.min.js is not loaded.');
            return;
        }

// Define element
        var columns_change_waterfall_element = document.getElementById('columns_change_waterfall');

//
        // Charts configuration
        //

if (columns_change_waterfall_element) {

// Initialize chart
            var columns_change_waterfall = echarts.init(columns_change_waterfall_element);

//
            // Chart config
            //

// Options
            columns_change_waterfall.setOption({

// Define colors
                color: ['#f17a52', '#03A9F4'],

// Global text styles
                textStyle: {
                    fontFamily: 'Roboto, Arial, Verdana, sans-serif',
                    fontSize: 13
                },

// Chart animation duration
                animationDuration: 750,

// Setup grid
                grid: {
                    left: 10,
                    right: 10,
                    top: 35,
                    bottom: 0,
                    containLabel: true
                },

// Add legend
                legend: {
                    data: ['Expenses', 'Income'],
                    itemHeight: 8,
                    itemGap: 20,
                    textStyle: {
                        padding: [0, 5]
                    }
                },

// Tooltip
                tooltip: {
                    trigger: 'axis',
                    backgroundColor: 'rgba(0,0,0,0.75)',
                    padding: [10, 15],
                    textStyle: {
                        fontSize: 13,
                        fontFamily: 'Roboto, sans-serif'
                    },
                    axisPointer: {
                        type: 'shadow',
                        shadowStyle: {
                            color: 'rgba(0,0,0,0.025)'
                        }
                    },
                    formatter: function (params) {
                        var tar;
                        if (params[1].value != '-') {
                            tar = params[1];
                        }
                        else {
                            tar = params[0];
                        }
                        return tar.name + '<br/>' + tar.seriesName + ': ' + tar.value;
                    }
                },

// Horizontal axis
                xAxis: [{
                    type: 'category',
                    data: ['January','February','March','April','May','June','July','August','September','October','November','December'],
                    axisLabel: {
                        color: '#333'
                    },
                    axisLine: {
                        lineStyle: {
                            color: '#999'
                        }
                    },
                    splitLine: {
                        show: true,
                        lineStyle: {
                            color: '#eee',
                            type: 'dashed'
                        }
                    }
                }],

// Vertical axis
                yAxis: [{
                    type: 'value',
                    axisLabel: {
                        color: '#333'
                    },
                    axisLine: {
                        lineStyle: {
                            color: '#999'
                        }
                    },
                    splitLine: {
                        lineStyle: {
                            color: '#eee'
                        }
                    },
                    splitArea: {
                        show: true,
                        areaStyle: {
                            color: ['rgba(250,250,250,0.1)', 'rgba(0,0,0,0.015)']
                        }
                    }
                }],

// Add series
                series: [
                    {
                        name: 'Aid',
                        type: 'bar',
                        stack: 'Total',
                        itemStyle: {
                            normal: {
                                barBorderColor: 'rgba(0,0,0,0)',
                                color: 'rgba(0,0,0,0)'
                            },
                            emphasis: {
                                barBorderColor: 'rgba(0,0,0,0)',
                                color: 'rgba(0,0,0,0)'
                            }
                        },
                        data: [0, 900, 1245, 1530, 1376, 1376, 1511, 1689, 1856, 1495, 1292, 992]
                    },
                    {
                        name: 'Income',
                        type: 'bar',
                        stack: 'Total',
                        itemStyle: {
                            normal: {
                                barBorderRadius: 3,
                                label: {
                                    show: true,
                                    position: 'top'
                                }
                            }
                        },
                        data: [900, 345, 393, '-', '-', 135, 178, 286, '-', '-', '-']
                    },
                    {
                        name: 'Expenses',
                        type: 'bar',
                        stack: 'Total',
                        itemStyle: {
                            normal: {
                                barBorderRadius: 3,
                                label: {
                                    show: true,
                                    position: 'bottom'
                                }
                            }
                        },
                        data: ['-', '-', '-', 108, 154, '-', '-', '-', 119, 361, 203,300]
                    }
                ]
            });
        }

//
        // Resize charts
        //

// Resize function
        var triggerChartResize = function() {
            columns_change_waterfall_element && columns_change_waterfall.resize();
        };

// On sidebar width change
        var sidebarToggle = document.querySelector('.sidebar-control');
        sidebarToggle && sidebarToggle.addEventListener('click', triggerChartResize);

// On window resize
        var resizeCharts;
        window.addEventListener('resize', function() {
            clearTimeout(resizeCharts);
            resizeCharts = setTimeout(function () {
                triggerChartResize();
            }, 200);
        });
    };

//
    // Return objects assigned to module
    //

return {
        init: function() {
            _waterfallChangeLightExample();
        }
    }
}();

// Initialize module
// ------------------------------

document.addEventListener('DOMContentLoaded', function() {
    EchartsWaterfallChangeLight.init();
});