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infographic_3.js
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// ------------- View -------------
Ext.define('Infographic.View', {
extend: 'Ext.panel.Panel',
controller: 'infographic',
title: 'Infographic: Step 3 (labels, slice and label renderers, "rotation" config)',
floating: true,
constrain: true,
layout: 'absolute',
width: 990,
items: [
{
xtype: 'polar',
width: '100%',
height: 1375,
insetPadding: '400 0 125 0',
store: {
type: 'unemployment'
},
sprites: [
{
type: 'rect',
x: 50,
y: 40,
width: 890,
height: 100,
fillStyle: 'rgba(76, 76, 77, 1.0)'
},
{
type: 'text',
text: 'Changes in U.S. Unemployment',
font: 'bold 54px Charter',
fillStyle: 'white',
x: 70,
y: 120
},
{
type: 'text',
text: '2007-2012',
font: 'normal 24px Verdana',
fillStyle: 'white',
x: 730,
y: 76
},
{
type: 'path', // The stripe containing the 'SENCHA INFOGRAPHIC' text.
path: 'M0,0 L294,0 L302,8 L302,29.14 C302,29.14 0,29.5 0,29 C0,28.5 0,0 0,0 z',
translationX: 34,
translationY: 20,
fillStyle: '#DDDCD4'
},
{
type: 'path', // The edge twist of the stripe above.
path: 'M0,29.265 L13.5,29.265 L13.5,41.265 z',
translationX: 34,
translationY: 20,
fillStyle: '#9D9D9D'
},
{
type: 'text',
text: 'SENCHA',
font: 'normal 12px Verdana',
fillStyle: 'rgba(148, 51, 57, 1.0)',
x: 60,
y: 42
},
{
type: 'text',
text: 'INFOGRAPHIC',
font: 'bold 12px Verdana',
fillStyle: 'rgba(148, 51, 57, 1.0)',
x: 116,
y: 42
},
{
type: 'image', // Sencha leaf logo.
src: 'sencha.png',
x: 24,
y: 10,
width: 24,
height: 36.5
},
{
type: 'text',
text: 'Forty-three states and the District of Columbia added\n' +
'jobs in the past 12 months, but the US has 4.8\n' +
'million fewer jobs than it did in 2008. North Dakota\n' +
'led the pack with a 7.2 percent increase, but the\n' +
'national growth rate was only 1.1 percent. Seven\n' +
'states lost jobs.',
font: 'normal 20px Charter',
textBaseline: 'top',
fillStyle: 'black',
x: 75,
y: 165
},
{
type: 'text',
text: 'Unemployment',
font: 'bold 36px Charter',
fillStyle: 'rgba(76, 76, 77, 1.0)',
textBaseline: 'top',
x: 632,
y: 165
},
{
type: 'path', // The legend's up arrow.
path: 'M0,6.5 L12.5,0 L25,6.5 L25,21.5 L0,21.5 z',
translationX: 748,
translationY: 214.5,
fillStyle: 'rgba(146, 50, 51, 1.0)'
},
{
type: 'rect',
x: 748,
y: 238,
width: 25,
height: 20,
fillStyle: 'rgba(179, 113, 114, 1.0)'
},
{
type: 'rect',
x: 748,
y: 260,
width: 25,
height: 20,
fillStyle: 'rgba(126, 135, 142, 1.0)'
},
{
type: 'rect',
x: 748,
y: 282,
width: 25,
height: 20,
fillStyle: 'rgba(194, 212, 221, 1.0)'
},
{
type: 'path', // The legend's down arrow.
path: 'M0,15 L12.5,21.5 L25,15 L25,0 L0,0 z',
translationX: 748,
translationY: 304,
fillStyle: 'rgba(114, 166, 185, 1.0)'
},
{
type: 'text',
text: 'rose by more than 1.5%',
textAlign: 'right',
font: 'normal 13px Charter',
fillStyle: 'rgba(56, 54, 54, 1.0)',
x: 742,
y: 233
},
{
type: 'text',
text: 'rose by 0.5% to 1.5%',
textAlign: 'right',
font: 'normal 13px Charter',
fillStyle: 'rgba(56, 54, 54, 1.0)',
x: 742,
y: 255
},
{
type: 'text',
text: 'rose by less than 0.5%',
textAlign: 'right',
font: 'normal 13px Charter',
fillStyle: 'rgba(56, 54, 54, 1.0)',
x: 742,
y: 277
},
{
type: 'text',
text: 'fell by less than 0.5%',
textAlign: 'left',
font: 'normal 13px Charter',
fillStyle: 'rgba(56, 54, 54, 1.0)',
x: 778,
y: 277
},
{
type: 'text',
text: 'fell by 0.5% to 1.5%',
textAlign: 'left',
font: 'normal 13px Charter',
fillStyle: 'rgba(56, 54, 54, 1.0)',
x: 778,
y: 298
},
{
type: 'text',
text: 'fell by more than 1.5%',
textAlign: 'left',
font: 'normal 13px Charter',
fillStyle: 'rgba(56, 54, 54, 1.0)',
x: 778,
y: 318
},
{
type: 'text',
text: 'Roll over a state to learn more.',
textAlign: 'center',
font: 'bold 17px Charter',
fillStyle: 'rgba(77, 77, 78, 1.0)',
x: 495,
y: 370
},
{
type: 'rect', // The footer rectangle.
x: 50,
y: 1300,
width: 890,
height: 50,
fillStyle: 'rgba(76, 76, 77, 1.0)'
},
{
type: 'text',
text: 'Source: Bureau of Labor Statistics',
textBaseline: 'top',
font: 'normal 12px Tahoma',
fillStyle: 'white',
x: 60,
y: 1310
},
{
type: 'text',
text: 'Sencha infographic by Vitaly Kravchenko\nupdated June 4, 2014',
textBaseline: 'top',
textAlign: 'right',
font: 'normal 12px Tahoma',
fillStyle: 'white',
x: 930,
y: 1310
}
],
series: {
type: 'pie',
angleField: 'span',
donut: 93, // percentage of the series radius
// rotation: -Math.PI/60, // TODO 4
subStyle: { // Use that instead of 'style' config in case a series has multiple sprites.
strokeStyle: 'white'
},
// renderer: 'onSliceRender2012', // TODO 3
label: { // TODO 1
field: 'label',
display: 'inside',
orientation: '', // no explicit orientation = horizontal text
// 'horizontal' orientation actually places labels perpendicular
// to the angle of rotation of the pie slice
fillStyle: 'white',
fontWeight: 'bold',
fontSize: 13,
fontFamily: 'Tahoma', // we don't use font shorthand here since theme values will override it
// renderer: 'onLabelRender2012' // TODO 2
}
}
}
]
});
// ------------- Controller -------------
Ext.define('Infographic.Controller', {
extend: 'Ext.app.ViewController',
alias: 'controller.infographic',
onSliceRender2012: function (sprite, config, data, index) {
var record = data.store.getAt(index),
label = record.get('label'),
unemployment = record.get('y2012'),
style = {};
if (label === '') { // a separating sector
style.fillStyle = 'none';
style.strokeStyle = 'none';
} else if (label === 'year') { // a sector that shows a year
style.fillStyle = 'rgba(70, 70, 69, 1.0)';
} else { // a sector that shows the change in unemployment with a color
style.fillStyle = this.getStateColor(unemployment);
}
return style;
},
onLabelRender2012: function (text, sprite, config, data, index) {
if (text === 'year') {
return {
text: '2012',
font: 'bold 16px sans-serif'
};
}
},
// Returns color based on percentage change in unemployment.
getStateColor: function (unemployment) {
if (unemployment < -1.5) {
return 'rgba(114, 166, 185, 1.0)';
} else if (unemployment < -0.5) {
return 'rgba(194, 212, 221, 1.0)';
} else if (unemployment < 0.5) {
return 'rgba(126, 135, 142, 1.0)';
} else if (unemployment < 1.5) {
return 'rgba(179, 113, 114, 1.0)';
} else {
return 'rgba(146, 50, 51, 1.0)';
}
}
});
Ext.onReady(function () {
Ext.draw.TextMeasurer.precise = true;
Ext.create('Infographic.View', {
renderTo: Ext.getBody()
});
});