ChartPortlet.js
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Ext.define('Ext.app.ChartPortlet', {
extend: 'Ext.panel.Panel',
alias: 'widget.chartportlet',
requires: [
'Ext.data.JsonStore',
'Ext.chart.theme.Base',
'Ext.chart.series.Series',
'Ext.chart.series.Line',
'Ext.chart.axis.Numeric'
],
generateData: function(){
var data = [{
name: 0,
djia: 10000,
sp500: 1100
}],
i;
for (i = 1; i < 50; i++) {
data.push({
name: i,
sp500: data[i - 1].sp500 + ((Math.floor(Math.random() * 2) % 2) ? -1 : 1) * Math.floor(Math.random() * 7),
djia: data[i - 1].djia + ((Math.floor(Math.random() * 2) % 2) ? -1 : 1) * Math.floor(Math.random() * 7)
});
}
return data;
},
initComponent: function(){
Ext.apply(this, {
layout: 'fit',
height: 300,
items: {
xtype: 'chart',
animate: false,
shadow: false,
store: Ext.create('Ext.data.JsonStore', {
fields: ['name', 'sp500', 'djia'],
data: this.generateData()
}),
legend: {
position: 'bottom'
},
axes: [{
type: 'Numeric',
position: 'left',
fields: ['djia'],
title: 'Dow Jones Average',
label: {
font: '11px Arial'
}
}, {
type: 'Numeric',
position: 'right',
grid: false,
fields: ['sp500'],
title: 'S&P 500',
label: {
font: '11px Arial'
}
}],
series: [{
type: 'line',
lineWidth: 1,
showMarkers: false,
fill: true,
axis: 'left',
xField: 'name',
yField: 'djia',
style: {
'stroke-width': 1,
stroke: 'rgb(148, 174, 10)'
}
}, {
type: 'line',
lineWidth: 1,
showMarkers: false,
axis: 'right',
xField: 'name',
yField: 'sp500',
style: {
'stroke-width': 1,
stroke: 'rgb(17, 95, 166)'
}
}]
}
});
this.callParent(arguments);
}
});