158 lines
6.8 KiB
HTML
158 lines
6.8 KiB
HTML
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<!DOCTYPE html >
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<html>
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<head>
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<meta http-equiv="X-UA-Compatible" content="chrome=1">
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<!--
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/**
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* o------------------------------------------------------------------------------o
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* | This file is part of the OfficeExcel package - you can learn more at: |
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* | |
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* | http://www.OfficeExcel.net |
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* | |
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* | This package is licensed under the OfficeExcel license. For all kinds of business |
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* | purposes there is a small one-time licensing fee to pay and for non |
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* | commercial purposes it is free to use. You can read the full license here: |
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* | |
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* | http://www.OfficeExcel.net/LICENSE.txt |
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* o------------------------------------------------------------------------------o
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*/
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-->
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<title>The pseudo-standard events available in OfficeExcel</title>
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<meta name="keywords" content="OfficeExcel html5 canvas chart docs async asynchronous" />
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<meta name="description" content="Documentation about the pseudo-standard events that are available in OfficeExcel" />
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<meta name="googlebot" content="NOODP">
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<meta property="og:title" content="OfficeExcel: HTML5 Javascript charts library" />
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<meta property="og:description" content="A chart library based on the HTML5 canvas tag" />
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<meta property="og:image" content="http://www.OfficeExcel.net/images/logo.png"/>
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<link rel="stylesheet" href="../css/website.css" type="text/css" media="screen" />
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<link rel="icon" type="image/png" href="../images/favicon.png">
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<!-- Place this tag in your head or just before your close body tag -->
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<script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script>
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<script src="../libraries/OfficeExcel.common.core.js"></script>
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<script src="../libraries/OfficeExcel.common.effects.js"></script>
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<script src="../libraries/OfficeExcel.bar.js"></script>
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<!--[if lt IE 9]><script src="../excanvas/excanvas.original.js"></script><![endif]-->
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<?php PrintAnalyticsCode() ?>
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</head>
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<body>
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<!-- Social networking buttons -->
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<?php
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$prefix = substr($_SERVER['SERVER_NAME'], 0, 3);
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require("/OfficeExcel.{$prefix}/social.html");
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?>
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<!-- Social networking buttons -->
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<div id="breadcrumb">
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<a href="../index.html">OfficeExcel: HTML5 Javascript charts library</a>
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>
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<a href="./index.html">Documentation</a>
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>
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Pseudo-standard events
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</div>
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<h1>Pseudo-standard <span>events</span></h1>
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<script>
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if (OfficeExcel.isOld()) {
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document.write('<div style="background-color: #fee; border: 2px dashed red; padding: 5px"><b>Important</b><br /><br /> Internet Explorer does not natively support the HTML5 canvas tag, so if you want to see the charts, you can either:<ul><li>Install <a href="http://code.google.com/chrome/chromeframe/">Google Chrome Frame</a></li><li>Use ExCanvas. This is provided in the OfficeExcel Archive.</li><li>Use another browser entirely. Your choices are Firefox 3.5+, Chrome 2+, Safari 4+ or Opera 10.5+. </li></ul> <b>Note:</b> Internet Explorer 9 fully supports the canvas tag.</div>');
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}
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</script>
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<canvas id="cvs" width="600" height="300" style="float: right">[No canvas support]</canvas>
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<script>
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function myClick (e, bar)
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{
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var obj = bar[0];
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var x = bar[1];
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var y = bar[2];
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var w = bar[3];
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var h = bar[4];
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var idx = bar[5];
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alert('The onclick listener just fired...!');
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}
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window.onload = function ()
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{
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var myBar = new OfficeExcel.Bar('cvs', [4,5,8,4,6,8,5]);
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myBar.Set('chart.labels', ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']);
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myBar.Set('chart.colors', ['blue']);
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myBar.Set('chart.events.mousemove', function (e, bar) {e.target.style.cursor = 'pointer';});
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myBar.Set('chart.events.click', myClick);
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OfficeExcel.Effects.Bar.Wave2(myBar);
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}
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</script>
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<p>
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Normally, if you apply an <i>onclick</i> listener to the canvas it will apply to the <b>whole</b> canvas. OfficeExcel provides a way
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to add event listeners to your chart so that the event listeners apply only to the appropriate areas. In the case of the Bar
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chart on the right this means the actual bars themselves. You can see the effect here when you click on a bar - you get an
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alert. And when you click on a non-bar area - nothing happens.
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</p>
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<p>
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You can use the properties:
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<ul>
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<li>chart.events.click</li>
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<li>chart.events.mousemove</li>
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</ul>
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To add your listeners to the chart.
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The listener is simply a function that is called when the event fires. Only one function can be specified, so you need to
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check the index to see if the bar is the one you want.
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</p>
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<br clear="all" />
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<pre class="code">
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<script>
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<span style="color: green">/**
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* This is the function that is run when the event fires.
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*/
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function myClick (e, bar)
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{
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var obj = bar[0];
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var x = bar[1];
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var y = bar[2];
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var w = bar[3];
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var h = bar[4];
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var idx = bar[5];
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alert('The onclick listener just fired...!');
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}</span>
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var myBar = new OfficeExcel.Bar('cvs', [4,5,8,4,6,8,5]);
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myBar.Set('chart.labels', ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']);
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myBar.Set('chart.colors', ['blue']);
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<span style="color: green">myBar.Set('chart.events.mousemove', function (e, bar) {e.target.style.cursor = 'pointer';});
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myBar.Set('chart.events.click', myClick); // The myClick function is the one above</span>
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OfficeExcel.Effects.Bar.Wave2(myBar);
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</script>
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</pre>
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<h4>Note</h4>
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<p>
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If you want the mouse pointer to change to the hand when you move the mouse over a bar you need to do
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as shown below in the <i>chart.events.mousemove</i> event with the CSS <i>cursor</i> property. When you move the
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mouse away from the bar the pointer will be restored to its previous state. Like this:
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</p>
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<pre class="code">
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obj.Set('chart.events.mousemove', function (e, bar) {e.target.style.cursor = 'pointer';});
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</pre>
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</body>
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</html>
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