<html>
	<head>
		<title>Export as JPG using JavaScript</title>
		<meta http-equiv="content-type" content="text/html;charset=utf-8"/>	
		<script type="text/javascript" language="javascript" src="./../js/AnyChartStock.js?v=1.9.0r9317"></script>
		<script type="text/javascript" language="javascript" src="./js/jquery.min.js"></script>
		<!-- chart size settings -->
		<style type="text/css">
			#chartContainer {
				width: 700px;
				height: 500px;
			}
		</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");
			// Setting XML config file.
			chart.setXMLFile("config.xml");
			// Writing the flash object into the page DOM.
			chart.write("chartContainer");
			
			//--------------------------------------------------------------------------------
			//		Exporting
			//--------------------------------------------------------------------------------
			
			// Function to save chart as jpg image
			function saveAsImage() {
				
				// object with settings
				var exportSettings = {
					fileName: $("#fileName").val(), // name of the file
					quality: $("#quality").val(), // quality: 1..100
					backgroundColor: $("#bgColor").val() // background of jpg image
				};
				
				var useCustomSize = $("#useCustomSize").get(0).checked; // use custom or original size
				if (useCustomSize) {
					exportSettings.size = "Custom"; // custom size is used
					exportSettings.width = $("#imgWidth").val(); // custom image width
					exportSettings.height = $("#imgHeight").val(); // custom image height
					exportSettings.resizingMode = $("#resizingMode").val(); // resizing mode
					exportSettings.cutExtraSpace = $("#cropExtraSpace").get(0).checked; // cut extra space settings
				}else {
					exportSettings.size = "Original"; // use original size
				}
				
				// export image with custom settings
				chart.exportAsJPG(exportSettings);
			}
			
			//--------------------------------------------------------------------------------
			//		Auxiliary Interface Functions
			//--------------------------------------------------------------------------------
			
			// Function to update inputs states depending on custom size flag state
			function checkCustomSize() {
				var disable = !$("#useCustomSize").get(0).checked;
				if (disable) {
					$("#imgWidth").attr("disabled","disabled");
					$("#imgHeight").attr("disabled","disabled");
					$("#resizingMode").attr("disabled","disabled");
					$("#cropExtraSpace").attr("disabled","disabled");
				}else {
					$("#imgWidth").removeAttr("disabled");
					$("#imgHeight").removeAttr("disabled");
					$("#resizingMode").removeAttr("disabled");
					$("#cropExtraSpace").removeAttr("disabled");
				}
				
			}
			
			// Function to update inputs states depending on resizing mode
			function checkResizingMode() {
				if (!$("#useCustomSize").get(0).checked) return;
				
				var mode = $("#resizingMode").val();
				if (mode == "Stretch" || mode == "Recalculate")
					$("#cropExtraSpace").attr("disabled","disabled");
				else
					$("#cropExtraSpace").removeAttr("disabled");
			}
			
			//---------------------------------------------------------------------------------------------------
			//		html events binding
			//---------------------------------------------------------------------------------------------------
			
			$(function() {
				$("#useCustomSize").change(checkCustomSize);
				$("#resizingMode").change(checkResizingMode);
			});
			
			//---------------------------------------------------------------------------------------------------
			//		Enable html controls
			//---------------------------------------------------------------------------------------------------
			
			chart.onChartDraw = function() {
				$("#fileName").removeAttr("disabled");
				$("#useCustomSize").removeAttr("disabled");
				$("#btnSave").removeAttr("disabled");
				$("#quality").removeAttr("disabled");
				$("#bgColor").removeAttr("disabled");
				
				chart.onChartDraw = null;
			}
		</script>
		<style type="text/css">
			/* table style and other */
			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: #F8F4F0;
				font:normal 70% Verdana;
				padding-bottom:2px;
				padding-top:2px;
				padding-left:10px;
				text-align:left;	
			}
			
			table.settings input, table.settings select {
				width: 170px;
			}
		</style>
	</head>
	<body>
		<table>
			<tr valign="top">
				<td id="chartContainer"><!-- Chart Container --></td>
				<td>
					<table class="settings">
						<tr><th colspan="2">File settings:</th></tr>
						
						<!-- file name -->
						<tr>
							<td>File name:</td>
							<td><input type="text" value="stock.jpg" id="fileName" disabled="disabled" autocomplete="off" /></td>
						</tr>
						
						<tr><th colspan="2">JPG settings:</th></tr>
						
						<!-- quality -->
						<tr>
							<td>Quality:</td>
							<td><input type="text" id="quality" disabled="disabled" value="80" autocomplete="off" /></td>
						</tr>
						<!-- background color -->
						<tr>
							<td>bgColor:</td>
							<td><input type="text" id="bgColor" disabled="disabled" value="#FFFFFF" autocomplete="off" /></td>
						</tr>
						
						<tr>
							<th colspan="2">Image size settings:</th>
						</tr>
						
						<!-- use custom size -->
						<tr>
							<td>Use custom size:</td>
							<td><input type="checkbox" id="useCustomSize" disabled="disabled" autocomplete="off" /></td>
						</tr>
						
						<!-- width -->
						<tr>
							<td>Width:</td>
							<td><input type="text" disabled="disabled" id="imgWidth" autocomplete="off" value="550" /></td>
						</tr>
						<!-- height -->
						<tr>
							<td>Height:</td>
							<td><input type="text" disabled="disabled" id="imgHeight" autocomplete="off" value="400"></td>
						</tr>
						<!-- resizing mode -->
						<tr>
							<td>Resizing mode:</td>
							<td><select id="resizingMode" disabled="disabled" autocomplete="off">
									<option value="Fit">Fit</option>
									<option value="Recalculate">Recalculate</option>
									<option value="Stretch">Stretch</option>
									<option value="RecalculateByProportions">RecalculateByProportions</option>
								</select></td>
						</tr>
						<!-- crop extra space -->
						<tr>
							<td>Crop extra space:</td>
							<td><input type="checkbox" disabled="disabled" id="cropExtraSpace" autocomplete="off"></td>
						</tr>	
					</table>
					<!-- export -->
					<table width="100%">
						<tr><td align="right"><input type="button" id="btnSave" disabled="disabled" value="Save as JPG..." onclick="saveAsImage()" /></td></tr>
					</table>
				</td>
			</tr>
		</table>
	</body>
</html>

Sample Description

How to use this sample?

In this sample you can tune any JPG export settings and then click "Save as JPG" button to export chart as JPG image to your PC.

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How it works

The chart can be exported as a static image in the PNG or JPG format or as a PDF document with an embedded static image of the chart or a fully interactive functional chart, as user sees it on the page.

When exporting a chart to any format, the component takes care of the entire file generation process. That means that you do not need to implement the conversion on the server side. The component automatically generates a ready-for-service file on the client side, not adding any extra load to the server. The only place where the server side is used is the helper script, which allows the end-user to save the file generated by the component on the local computer.

When "Save as JPG" button is clicked exportSettings object is created according to user settings and then exportAsJPG function is called.

You can read more about the way the export is organized at: Export to a local computer article and learn about JPG export settings at JPG Image Export Settings article.

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AnyChartStock JavaScript API

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

Item Type Description
exportAsJPG Method Exports the chart as a JPG image.
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.

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Prerequisites

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

Configuration file

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.

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