Updating Event Markers Visual Settings Using JavaScript

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
	<head>
		<title>Update Event Markers Visual Settings using JavaScript</title>
		<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
		
		<!-- jQuery is used to work with DOM and create calendar control -->
		<script type="text/javascript" src="js/jquery-1.4.2.min.js"></script>
		<!-- jquery ui for calendar control -->
		<link type="text/css" href="css/ui-lightness/jquery-ui-1.8.2.custom.css?v=1.9.0r9317" rel="stylesheet" />	
		<script type="text/javascript" src="js/jquery-ui-1.8.2.custom.min.js"></script>
		
		<script type="text/javascript" language="javascript" src="./../js/AnyChartStock.js?v=1.9.0r9317"></script>
		<!-- chart size settings -->
		<style type="text/css">
			#chartContainer {
				width: 800px;
				height: 550px;
				float: left;
			}
		</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");
			// needConfig set to true allow us to work with chart objectModel.
			chart.needConfig = true;
			// Writing the flash object into the page DOM.
			chart.write("chartContainer");
			
			//document ready
			$(function(){
				// initialize jQuery UI date picker
				$('#eventMarkerDate').datepicker({
					dateFormat: 'yy-mm-dd' }
				);
			});
			
			// link to selected event marker settings
			var selectedMarkerConfig;
			
			// evnet marker deselect handler
			chart.onEventMarkerDeselect = function(e) {
				chart.getEventMarkerById(e.groupId,e.id).selected = false; // sync object model with real state
			}
			
			// event marker select event handler
			chart.onEventMarkerSelect = function(e) {
				selectedMarkerConfig = chart.getEventMarkerById(e.groupId,e.id); // get settings from objectModel
				selectedMarkerConfig.selected = true; // sync object model with real state
				
				var settings = selectedMarkerConfig.settings || chart.objectModel.eventMarkers.settings; // event marker settings 
				// event marker position
				$("#eventMarkerPosition").val(selectedMarkerConfig.position || "Series");
				// event marker direction
				$("#eventMarkerDirection").val(selectedMarkerConfig.direction || "Up");
				// event marker date
				$("#eventMarkerDate")
					.datepicker("disable")
					.datepicker("setDate",selectedMarkerConfig.date)
					.datepicker("enable");
				
				// event marker visual settings
				$("#eventMarkerSymbol").val(selectedMarkerConfig.format || chart.getEventMarkersGroupById(e.groupId).format); // format
				$("#eventMarkerShapeType").val(settings.shape.type); // shape type
				$("#eventMarkerColorScheme").val(selectedMarkerConfig.attributes.colorScheme); // color scheme
				// custom attributes
				$("#eventMarkerCustomAttrDecsription").val(selectedMarkerConfig.attributes.description); // "description" custom attribute
			};
			
			// update selected event marker settings
			function updateEventMarker() {
				
				selectedMarkerConfig.position = $("#eventMarkerPosition").val(); // position
				selectedMarkerConfig.direction = $("#eventMarkerDirection").val(); // direction
				var date = $("#eventMarkerDate").datepicker("getDate");
				date = new Date(date - date.getTimezoneOffset() * 60000);
				selectedMarkerConfig.date = date; // date
				// event marker visual settings
				selectedMarkerConfig.format = $("#eventMarkerSymbol").val(); // format
				
				var shapeType = $("#eventMarkerShapeType").val(); // shape type
				var colors = $("#eventMarkerColorScheme").val(); // color scheme
				if (colors == "Default") { // if default - reset settings
					selectedMarkerConfig.settings = {
						shape: { type: shapeType }
					};
				}else {
					// get settings based on shape type and color scheme
					var keysSource;
					switch (shapeType) {
						case "Circle": 
							selectedMarkerConfig.settings = circleSettingsBase;
							keysSource = circleKeys;
							break;
						case "Flag":
							selectedMarkerConfig.settings = flagSettingsBase;
							keysSource = flagKeys;
							break;
						case "Pin":
							selectedMarkerConfig.settings = pinSettingsBase;
							keysSource = pinKeys;
							break;
						case "Rect":
							selectedMarkerConfig.settings = rectSettingsBase;
							keysSource = rectKeys;
							break;
					}
					selectedMarkerConfig.settings = $.extend(true, {}, selectedMarkerConfig.settings); //clone settings 
					selectedMarkerConfig.settings.shape.fill.gradient.keys = keysSource[colors.toLowerCase()];
				}
				selectedMarkerConfig.attributes.colorScheme = colors; // save scheme to custom attr
				// custom attributes
				selectedMarkerConfig.attributes.description = $("#eventMarkerCustomAttrDecsription").val(); // "description" custom attribute
				// commit object model changes
				chart.applyEventMarkersChanges();
			}
			
			// event marker styles
			var circleSettingsBase = {
				font: { family: "Verdana", size: 9, color: "#FFFFFF" },
				shape: {
					type: "Circle",
					fill: {
						type: "Gradient", opacity: 1,
						gradient: {
							type:"Radial",
							angle: 45,
							focalPoint: -0.5,
							keys: []
						}
					}
				},
				connector: { length: 13 },
				states: {
					hover: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 0.7 }
						}
					},
					selectedHover: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 1 }
						}
					},
					selectedNormal: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 1 }
						}
					}
				}
			};
			var circleKeys = {	
				black: [
					{ color: "#C5C5C5" },
					{ color: "#000000" }
				],
				red: [
					{ color: "#DC6B6B" },
					{ color: "#85001F" }
				], 
				green: [
					{ color: "#6BDC73" },
					{ color: "#006511" }
				]
			};
			
			var flagSettingsBase = {
				font: { family: "Verdana", size: 9, color: "#FFFFFF" },
				shape: {
					type: "Flag",
					fill: {
						type: "Gradient", opacity: 1,
						gradient: {
							type:"Linear",
							angle: 45,
							keys: []
						}
					},
					corners: {
						type: "Rounded", rightTop: 3, rightBottom: 3
					}
				},
				connector: { length: 13 },
				states: {
					hover: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 0.7 }
						}
					},
					selectedHover: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 1 }
						}
					},
					selectedNormal: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 1 }
						}
					}
				}
			};
			var flagKeys = {
				black: [
					{ color: "#A5A5A5" },
					{ color: "#000000" }
				],
				red: [
					{ color: "#DC6B6B" },
					{ color: "#85001F" }
				],
				green: [
					{ color: "#6BDC73" },
					{ color: "#006511" }
				]
			};
			
			var rectSettingsBase = {
				font: { family: "Verdana", size: 9, color: "#FFFFFF" },
				shape: {
					type: "Rect",
					fill: {
						type: "Gradient", opacity: 1,
						gradient: {
							type:"Linear",
							angle: 45,
							keys: []
						}
					},
					corners: {
						type: "Rounded", all: 3
					}
				},
				connector: { length: 13 },
				states: {
					hover: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 0.7 }
						}
					},
					selectedHover: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 1 }
						}
					},
					selectedNormal: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 1 }
						}
					}
				}
			};
			var rectKeys = {
				black: [
					{ color: "#A5A5A5" },
					{ color: "#000000" }
				], 
				red: [
					{ color: "#DC6B6B" },
					{ color: "#85001F" }
				],
				green: [
					{ color: "#6BDC73" },
					{ color: "#006511" }
				]
			};
			
			var pinSettingsBase = {
				font: { family: "Verdana", size: 8, color: "#FFFFFF" },
				shape: {
					type: "Pin", width: 11, 
					fill: {
						type: "Gradient", opacity: 1,
						gradient: {
							type:"Linear",
							angle: 45,
							keys: []
						}
					}
				},
				connector: { length: 13 },
				states: {
					hover: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 0.7 }
						}
					},
					selectedHover: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 1 }
						}
					},
					selectedNormal: {
						shape: {
							border: { color: "#579AE9", thickness: 2, opacity: 1 }
						}
					}
				}
			};
			var pinKeys = {
				black:  [
					{ color: "#A5A5A5" },
					{ color: "#000000" }
				],
				red: [
					{ color: "#DC6B6B" },
					{ color: "#85001F" }
				],
				green: [
					{ color: "#6BDC73" },
					{ color: "#006511" }
				]
			};
			
			//---------------------------------------------------------------------------------------------------
			//		html events binding
			//---------------------------------------------------------------------------------------------------
			
			$(function() {
				$("#eventMarkerSymbol").change(updateEventMarker);
				$('#eventMarkerDate').change(updateEventMarker);
				$("#eventMarkerPosition").change(updateEventMarker);
				$("#eventMarkerDirection").change(updateEventMarker);
				$("#eventMarkerShapeType").change(updateEventMarker);
				$("#eventMarkerColorScheme").change(updateEventMarker);
				$("#eventMarkerCustomAttrDecsription").change(updateEventMarker);
			});
			
			//---------------------------------------------------------------------------------------------------
			//		Enable html controls
			//---------------------------------------------------------------------------------------------------
			
			chart.onChartDraw = function() {
				$("#eventMarkerSymbol").removeAttr("disabled");
				$("#eventMarkerDate").removeAttr("disabled");
				$("#eventMarkerPosition").removeAttr("disabled");
				$("#eventMarkerDirection").removeAttr("disabled");
				$("#eventMarkerShapeType").removeAttr("disabled");
				$("#eventMarkerColorScheme").removeAttr("disabled");
				$("#eventMarkerCustomAttrDecsription").removeAttr("disabled");
				
				chart.onChartDraw = null;
			}
		</script>
		<!-- style settings -->
		<style type="text/css">
			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;
				padding-right:10px;
				text-align:left;
			}
			
			table.settings tr td {
				background-color: #F8F4F0;
				font:normal 70% Verdana;
				padding-bottom:2px;
				padding-top:2px;
				padding-left:10px;
				padding-right:10px;
				text-align:left;
				width:150px;				
			}
			
			table.settings input, table.settings select {
				width: 100%;
			}
			
			#eventMarkerDate {
				background-image: url(calendar.png);
				background-repeat: no-repeat;
				background-position: center right;
			}
			
			#ui-datepicker-div {
				font-size: 10pt;
			}
		</style>
	</head>
	<body>
		<div id="chartContainer"><!-- Chart Container --></div>
		<table class="settings">
			<tr><th colspan="2">Event Marker Settings:</th></tr>
			<tr>
				<td>Symbol:</td>
				<td><input type="text" id="eventMarkerSymbol" disabled="disabled" autocomplete="off"/> </td>
			</tr>
			<tr>
				<td>Date:</td>
				<td><input type="text" id="eventMarkerDate" disabled="disabled" autocomplete="off"></td>
			</tr>
			<tr>
				<td>Position:</td>
				<td><select id="eventMarkerPosition" disabled="disabled" autocomplete="off">
						<option value="Series" selected="true">Series</option>
						<option value="SeriesPositive">SeriesPositive</option>
						<option value="SeriesNegative">SeriesNegative</option>
						<option value="Axis">Axis</option>
					</select></td>
			</tr>
			<tr>
				<td>Direction:</td>
				<td><select id="eventMarkerDirection" disabled="disabled" autocomplete="off">
						<option value="Up" selected="true">Up</option>
						<option value="Down">Down</option>
					</select></td>
			</tr>
			<tr>
				<td>Shape Type:</td>
				<td><select id="eventMarkerShapeType" disabled="disabled" autocomplete="off">
						<option value="Circle" selected="true">Circle</option>
						<option value="Rect">Rect</option>
						<option value="Pin">Pin</option>
						<option value="Flag">Flag</option>
					</select></td>
			</tr>
			<tr>
				<td>Color Scheme:</td>
				<td><select id="eventMarkerColorScheme" disabled="disabled" autocomplete="off">
						<option value="Default">Default</option>
						<option value="Black">Black</option>
						<option value="Red">Red</option>
						<option value="Green">Green</option>
					</select></td>
			</tr>
			<tr>
				<th colspan="2">Custom attributes:</th>
			</tr>
			<tr>
				<td>Description:</td>
				<td><input type="text" id="eventMarkerCustomAttrDecsription" disabled="disabled" autocomplete="off"/></td>
			</tr>
		</table>
	</body>
</html>

Sample Description

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

How to use this sample?

Click event markers on the chart to select them and use controls to the right of the chart to change their look and content.

How it works

This sample shows you how you can alter event markers on-the-fly using object model (as described in Updating Chart using Object Model).

Main things to notice here are getEventMarkerById method and applyEventMarkersChanges methods, the first one is used to obtain the link to selected event marker and the second one to apply changes when tuning is finished.

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.
applyEventMarkersChanges	Method	Commits changes made to eventMarkers element of the objectModel.
getEventMarkerById	Method	Returns the link to event marker object.
getEventMarkersGroupById	Method	Returns the link to event marker group object.
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.
onEventMarkerDeselect	Event	This event is dispatched when an event marker is deselected.
onEventMarkerSelect	Event	This event is dispatched when an event marker is selected.

Prerequisites

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

Configuration file

config.xml

CSV files

data.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-1.4.2.min.js - A JavaScript jQuery library. Learn more at jQuery official site.
jquery-ui-1.8.2.custom.min.js
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

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