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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>Apply scope to label functions</title>
<style type="text/css">
/*margin and padding on body element
can introduce errors in determining
element position and are not recommended;
we turn them off as a foundation for YUI
CSS treatments. */
body {
margin:0;
padding:0;
}
</style>
<link rel="stylesheet" type="text/css" href="../../build/fonts/fonts-min.css" />
<script type="text/javascript" src="../../build/yahoo-dom-event/yahoo-dom-event.js"></script>
<script type="text/javascript" src="../../build/json/json-min.js"></script>
<script type="text/javascript" src="../../build/element/element-min.js"></script>
<script type="text/javascript" src="../../build/datasource/datasource-min.js"></script>
<script type="text/javascript" src="../../build/swf/swf-min.js"></script>
<script type="text/javascript" src="../../build/charts/charts-min.js"></script>
<!--begin custom header content for this example-->
<style type="text/css">
#chart
{
width: 500px;
height: 350px;
margin-bottom: 10px;
}
.yui-dt-table {width: 500px;}
.chart_title
{
display: block;
font-size: 1.2em;
font-weight: bold;
margin-bottom: 0.4em;
}
</style>
<!--end custom header content for this example-->
</head>
<body class="yui-skin-sam">
<h1>Apply scope to label functions</h1>
<div class="exampleIntro">
<p>A <a href="http://developer.yahoo.com/yui/charts/">YUI Charts Control</a> and a <a href="http://developer.yahoo.com/yui/datatable/">DataTable Control</a> may share a <a href="http://developer.yahoo.com/yui/datasource/">DataSource</a> to display the same data.</p>
<p>Please note: The YUI Charts Control requires Flash Player 9.0.45 or higher. The latest version of Flash Player is available at the <a href="http://www.adobe.com/go/getflashplayer">Adobe Flash Player Download Center</a>.</p>
</div>
<!--BEGIN SOURCE CODE FOR EXAMPLE =============================== -->
<span class="chart_title">Personal Expenses</span>
<div id="chart">Unable to load Flash content. The YUI Charts Control requires Flash Player 9.0.45 or higher. You can download the latest version of Flash Player from the <a href="http://www.adobe.com/go/getflashplayer">Adobe Flash Player Download Center</a>.</p></div>
<script type="text/javascript">
YAHOO.widget.Chart.SWFURL = "../../build/charts/assets/charts.swf";
var CustomGraph = function()
{
this.text = "*************************************";
this.chart;
this.dataTipFunction = CustomGraph.prototype.dataTipFunction;
this.monthlyExpenses =
[
{ month: "January", car: 265.35, power:60.00, cable:101.45, entertainment:304.33},
{ month: "February", car: 265.35, power:65.00, cable:123.87, entertainment:255.65},
{ month: "March", car: 265.35, power:75.34, cable:101.45, entertainment:284.85},
{ month: "April", car: 265.35, power:88.45, cable:115.64, entertainment:245.90},
{ month: "May", car: 265.35, power:98.47, cable:101.45, entertainment:265.34},
{ month: "June", car: 265.35, power:101.35, cable:108.64, entertainment:301.23}
];
this.styleDefinition =
{
font:{color:0x663333},
background:{color:0xDCAD70},
border:{color:0x663333, size:2},
xAxis:{color:0x663333},
yAxis:{color:0x663333, minorTicks:{display:"none"}, majorTicks:{display:"none"}, majorGridLines:{color:0x663333}}
}
}
CustomGraph.prototype.getDataSource = function()
{
var myDataSource = new YAHOO.util.DataSource( this.monthlyExpenses );
myDataSource.responseType = YAHOO.util.DataSource.TYPE_JSARRAY;
myDataSource.responseSchema =
{
fields: [ "month", "car", "power", "entertainment", "cable" ]
};
return myDataSource;
}
CustomGraph.prototype.formatCurrencyAxisLabel = function( value )
{
return this.numberToCurrency(value);
}
CustomGraph.prototype.numberToCurrency = function(value)
{
return YAHOO.util.Number.format( value,
{
prefix: "$",
thousandsSeparator: ",",
decimalPlaces: 2
});
}
CustomGraph.prototype.fixedExpensesDataTipFunction = function(item, index, series)
{
var toolTipText = this.text;
toolTipText += "\n" + series.displayName + " payment for " + item.month;
toolTipText += "\n" + this.formatCurrencyAxisLabel( item[series.yField] );
toolTipText += "\n" + this.text;
return toolTipText;
}
CustomGraph.prototype.dataTipFunction = function( item, index, series )
{
var expense = series.yField;
var num = item[expense];
return this.getDataTipText(expense, item.month, num);
}
CustomGraph.prototype.getDataTipText = function(expense, month, amount)
{
var toolTipText = this.text;
toolTipText += "\nYour " + month + " " + expense;
var limit;
switch(expense)
{
case "entertainment" :
toolTipText += " expenses are";
toolTipText += amount <= 300 ? "\n in an acceptable range: \n" : "\n too high. \nGo out less:\n";
break;
case "cable" :
toolTipText += " bill is";
toolTipText += amount <= 110 ? "\n in an acceptable range: \n" : "\n too high. \nOrder less movies:\n";
break;
case "power" :
toolTipText += " bill is";
toolTipText += amount <= 80 ? "\n in an acceptable range: \n" : "\n too high. \nTurn down your AC:\n";
break;
}
toolTipText += this.formatCurrencyAxisLabel(amount);
toolTipText += "\n" + this.text;
return toolTipText;
}
CustomGraph.prototype.getVerticalAxis = function()
{
var currencyAxis = new YAHOO.widget.NumericAxis();
currencyAxis.alwaysShowZero = false;
currencyAxis.labelFunction = {func:this.formatCurrencyAxisLabel, scope:this};
return currencyAxis;
}
CustomGraph.prototype.getSeriesDefs = function()
{
var seriesDef =
[
{
displayName: "Car",
yField: "car",
style:{skin:"DiamondSkin", color:0x006600},
dataTipFunction:{func:this.fixedExpensesDataTipFunction, scope:this}
},
{
displayName: "power",
yField: "power",
style:{color:0x8899dd}
},
{
displayName: "Cable",
yField: "cable",
style:{color:0xee6600}
},
{
displayName: "Entertainment",
yField: "entertainment",
style:{color:0x6e5000}
}
];
return seriesDef;
}
CustomGraph.prototype.drawChart = function(myDiv)
{
var myAtts = {xField:"month", version:9.28};
myAtts.dataTipFunction = {func:this.dataTipFunction, scope:this};
myAtts.series = this.getSeriesDefs();
myAtts.yAxis = this.getVerticalAxis();
myAtts.style = this.styleDefinition;
this.chart = new YAHOO.widget.LineChart(myDiv, this.getDataSource(), myAtts);
}
var myGraph = new CustomGraph();
myGraph.drawChart("chart");
</script>
<!--END SOURCE CODE FOR EXAMPLE =============================== -->
</body>
</html>
|
