Getting Event Markers List in a Time Range

<html>
	<head>
		<title>Using  Event Markers Custom Attributes</title>
		<meta http-equiv="content-type" content="text/html;charset=utf-8"/>	
		<!--- 
			This sample uses jquery library to work with DOM 
		-->
		<script type="text/javascript" language="javascript" src="./js/jquery.min.js"></script>
		<script type="text/javascript" language="javascript" src="./../js/AnyChartStock.js?v=1.9.0r9317"></script>
		<style type="text/css">
			html, body {
				background-color: white;
			}
		
			/* chart size */
			#chartContainer {
				width: 800px;
				height: 500px;
			}
			
			/* other settings */
			table.settings {
				border-style: solid;
				border-width: 1px;
				border-color: #D0CDC9;
			}

			table.settings tr th {
				font:normal 60% Verdana;
				background-color: #DCD9D5;
				font-weight:bold;
				padding-bottom:5px;
				padding-top:5px;
				padding-left:10px;
				text-align:left;
			}
			table.settings tr td {
				background-color: #ffffff;
				font:normal 70% Verdana;
				padding-bottom:4px;
				padding-top:0;
				padding-left:4px;
				text-align:left;	
			}
			
			/* Event table list settings */
			
			/* firefox outline fix */
			* {
				outline: none;
			}
			
			#info {
				width: 400px;
				height: 490px;
				overflow-y: scroll;
				padding-top: 10px;
				background-color: white;
			}
			
			.event {
				width: 354px;
				height: 50px;
				border: 1px solid #d2d2d2;
				padding: 10px;
				margin-bottom: 5px;
			}
			
			#info td {
				background: none;
				padding: 0px;
				margin: 0px;
			}
			
			.event .icon {
				width: 37px;
			}
			
			.event .icon p {
				width: 27px;
				height: 26px;
				padding: 0;
				margin: 0;
				background-image: url(letters_strip.png);
				background-repeat: no-repeat;
			}
			
			.event .iconSelected {
				background-position: 0px 0px;
			}
			
			.event .iconNormal {
				background-position: 0px -29px;
			}
			
			.event .title a, .event .title a:visited {
				color: #1e399d;
				font: 8pt Verdana;
			}
			
			a {
				text-decoration: none;
			}
			
			.event .date a, .date .event a:visited {
				color: #595959;
			}
			
			.event .date a:hover, .event .title a:hover {
				text-decoration: underline;
			}
			
			.event .date {
				padding-top: 5px !important;
				font: 8pt Verdana;
			}
			
		</style>
		<script type="text/javascript" language="javascript">
			// Creating new chart object. 
			var chart = new AnyChartStock("./../swf/AnyChartStock.swf?v=1.9.0r9317", "./../swf/Preloader.swf?v=1.9.0r9317");
			// needConfig allows to use chart object model, which is needed to get information about event markers
			chart.needConfig = true;
			// Setting XML config file.
			chart.setXMLFile("config.xml");
			
			//--------------------------------------------------------------------------------
			//		Auxiliary Date Time Functions 
			//--------------------------------------------------------------------------------
			
			var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
					
			// Function to format date according to "%MMM %dd, %yyyy" mask. (e.g. 15 May, 2010)
			function formatDate(date) {
				return months[date.getUTCMonth()] + " "+date.getUTCDate()+", "+date.getUTCFullYear();
			}
			
			//--------------------------------------------------------------------------------
			///		Showing list of event markers visible range
			//--------------------------------------------------------------------------------
			
			function updateVisibleEventMarkers(start, end) {
				$("#info").html("");

				// Get all event markers from zero indexed group
				var eventMarkers = chart.objectModel.eventMarkers.groups[0].events;
				// show them
				for (var i = eventMarkers.length-1; i>=0 ;i--) {
					// get link to event marker info
					var eventMarker = eventMarkers[i];
					
					var date = eventMarker.date.getTime(); // get event marker date
					
					if (date < start || date > end) continue; // if event marker date is out of visible range - don't show it
					
					// create list element
					var htmlCode = "<div class=\"event\" id=\"e_"+eventMarker.id+"\">" // event markers id
+"						<table cellspacing=\"0\" cellpadding=\"0\">"
+"							<tr valign=\"top\">"
+"								<td class=\"icon\"><a href=\"#\"><p class=\"iconNormal\">&nbsp;</p></a></td>"
+"								<td class=\"title\"><a href=\""+eventMarker.attributes.Link + "\" target=\"_blank\">"+eventMarker.attributes.Title+"</a></td>" // title attribute (see config.xml)
+"							</tr>"
+"							<tr>"
+"								<td>&nbsp;</td>"
+"								<td class=\"date\"><a href=\"http://oracle.com\" target=\"_blank\">www.oracle.com</a> - "+formatDate(eventMarker.date)+"</td>" //link attribute (see config.xml) and date
+"							</tr>"
+"						</table>"
+"					</div>";

					// and add it into <div id="info"/>
					$("#info").append(htmlCode);
					
					// get link to this div (it contains event marker info)
					var e = $("#e_"+eventMarker.id);
					// set letter (A-Z)
					e.find(".icon p").css("backgroundPosition","-"+(30*(i%26))+"px -29px");
				}
			}
			
			//--------------------------------------------------------------------------------
			//		Events handling
			//--------------------------------------------------------------------------------
			
			chart.onSelectedRangeChange = function(startDate, endDate, phase) {
				if (phase == "finish")
					updateVisibleEventMarkers(startDate.getTime(), endDate.getTime());
			}

			chart.onChartDraw = function() {
				updateVisibleEventMarkers(chart.getFirstVisibleDate().getTime(), chart.getLastVisibleDate().getTime());
				chart.onChartDraw = null;
			};
			
			// Writing the flash object into the page DOM.
			chart.write("chartContainer");
			
		</script>
	</head>
	<body>
		<table>
			<tr valign="top">
				<td>
					<table class="settings">
						<tr>
							<th>Historical Prices for Oracle Corporation</th>
						</tr>
						<tr>
							<td id="chartContainer"><!-- Chart Container --></td>
						</tr>
					</table>
				</td>
				<td>
					<table class="settings">
						<tr>
							<th>Key Developments in selected date range</th>
						</tr>
						<tr>
							<td><div id="info"></div></td>
						</tr>
					</table>
				</td>
			</tr>
		</table>
	</body>
	
</html>

Sample Description

How to use this sample?
How it works?
AnyChartStock JavaScript API
Prerequisites

How to use this sample?

Use drag and scroll navigation on the chart to select some period - list to the right of the chart shows the list of event markers that are visible on the chart.

How it works

In this sample when onChartDraw event happens chart object model in updateVisibleEventMarkers function is used to get information about event markers from the chart.

When the information is gathered onSelectedRangeChange event is listened and updateVisibleEventMarkers is called to maintain the correct list of visible event markers.

updateVisibleEventMarkers uses object model to loop through the list of event markers and compares their date to startDate and endDate values received in onSelectedRangeChange event.

You can read more about event markers in Event Markers section and about object model in Updating Chart using Object Model article.

AnyChartStock JavaScript API

This sample uses the following methods, properties and events from AnyChartStock JavaScript API:

Item	Type	Description
needConfig	Property (Boolean)	Defines whether the access to full chart configuration object model is required.
objectModel	Property (Object)	Gets chart configuration as an Object.
getFirstVisibleDate	Method	Gets the first visible date.
getLastVisibleDate	Method	Gets the last visible date.
setXMLFile	Method	Sets chart XML configuration file path.
write	Method	Adds the chart to HTML DOM as a child of the specified container.
onChartDraw	Event	This event is dispatched when the AnyChart Stock is drawn.
onSelectedRangeChange	Event	This event is dispatched when the selected range of the chart is changed.

Prerequisites

This section lists all configuration, data and auxiliary files required for this sample.

Configuration file

config.xml

CSV files

orcl_daily.csv

SWF files

AnyChartStock.swf - AnyChart Stock component.
Preloader.swf - AnyChart Stock helper component that loads the main component (AnyChartStock.swf) and displays loading progress.

JavaScript Libraries

jquery.min.js - A JavaScript jQuery library. Learn more at jQuery official site.
AnyChartStock.js - A JavaScript library that is shipped with AnyChart Stock component. It is used to embed the component into HTML DOM and to comunicate with the Flash part.

Additional Files

letters_strip.png

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