<html>
<head>
<title>Annotations Events Handling</title>
<meta http-equiv="content-type" content="text/html;charset=utf-8"/>
<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>
<!-- 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");
// Writing the flash object into the page DOM.
chart.write("chartContainer");
// Enabling disabled buttons when chart has been rendered
chart.onChartDraw = function () {
document.getElementById("btnOnePointAnnotStart").removeAttribute("disabled");
document.getElementById("btnTwoPointsAnnotStart").removeAttribute("disabled");
document.getElementById("btnThreePointsAnnotStart").removeAttribute("disabled");
document.getElementById("btnRemoveAll").removeAttribute("disabled");
}
// Enable StopDrawingAnnotation button when any annotation drawing has started and log an event
chart.onAnnotationDrawingStart = function (id) {
document.getElementById("btnStopDrawing").removeAttribute("disabled");
logEvent("onAnnotationDrawingStart", id);
}
// Just log an event
chart.onAnnotationDrawingProgress = function (id, mouseX, mouseY) {
logEvent("onAnnotationDrawingProgress", id, mouseX, mouseY);
}
// Disable StopDrawingAnnotation button when annotation drawing successfully finished and log an event
chart.onAnnotationDrawingFinish = function (id) {
document.getElementById("btnStopDrawing").setAttribute("disabled", "disabled");
logEvent("onAnnotationDrawingFinish", id);
}
// Just log an event
chart.onAnnotationEditingStart = function (id) {
logEvent("onAnnotationEditingStart", id);
}
// Just log an event
chart.onAnnotationEditingProgress = function (id) {
logEvent("onAnnotationEditingProgress", id);
}
// Just log an event
chart.onAnnotationEditingFinish = function (id) {
logEvent("onAnnotationEditingFinish", id);
}
// Enable btnRemoveSelectedAnnotation button when any annotation has been selected and log an event
chart.onAnnotationSelect = function (id) {
document.getElementById("btnRemoveSelected").removeAttribute("disabled");
logEvent("onAnnotationSelect", id);
}
// Disable btnRemoveSelectedAnnotation button when no annotation is selected and log an event.
// This event also fires when the selected annotation has been removed, so we don't
// need to duplicate this disabling code to the removeSelectedAnnotation() function.
chart.onAnnotationDeselect = function (id) {
document.getElementById("btnRemoveSelected").setAttribute("disabled", "disabled");
logEvent("onAnnotationDeselect", id);
}
// Log an event.
chart.onAnnotationRemove = function (id) {
logEvent("onAnnotationRemove", id);
}
// Events Log
var events = [];
// Log an event
function logEvent(type, annotationId, opt_mouseX, opt_mouseY) {
var mouseCoords;
if (arguments.length == 2)
mouseCoords = null;
else
mouseCoords = "[" + opt_mouseX + "; " + opt_mouseY + "]";
// Show only ten last events
events.push({ type: type, id: annotationId, mouse: mouseCoords });
if (events.length > 10)
events = events.splice(1);
// Events are shown in log table
for (var i = 0; i < events.length; i++) {
var e = events[events.length - 1 - i];
var rowIndex = (i + 2).toString();
var row = $("table.log tr:eq(" + rowIndex + ")");
row.find("td:eq(0)").html(e.type);
row.find("td:eq(1)").html(e.id);
if (e.mouse)
row.find("td:eq(2)").html(e.mouse);
else
row.find("td:eq(2)").html("");
}
}
// All available one-anchor-point annotations
var onePointAnnotations = [
"VerticalLine",
"HorizontalLine",
"Arrow",
"Label"
];
// All available two-anchor-points annotations
var twoPointAnnotations = [
"Line",
"FibonacciFan",
"FibonacciArc",
"FibonacciRetracement",
"FibonacciTimezones",
"InfiniteLine",
"Ray",
"Rectangle",
"Ellipse"
];
// All available three-anchor-points annotations
var threePointAnnotations = [
"Triangle",
"TrendChannel",
"AndrewsPitchfork"
];
// Start drawing random one-anchor-point annotation
function startOnePointAnnotation() {
chart.startDrawingAnnotation(onePointAnnotations[Math.floor(Math.random() * onePointAnnotations.length)]);
}
// Start drawing random two-anchor-points annotation
function startTwoPointsAnnotation() {
chart.startDrawingAnnotation(twoPointAnnotations[Math.floor(Math.random() * twoPointAnnotations.length)]);
}
// Start drawing random three-anchor-points annotation
function startThreePointsAnnotation() {
chart.startDrawingAnnotation(threePointAnnotations[Math.floor(Math.random() * threePointAnnotations.length)]);
}
// Stop drawing annotation
function stopDrawing() {
chart.stopDrawingAnnotation();
document.getElementById("btnStopDrawing").setAttribute("disabled", "disabled");
}
// Removes selected annotation
function removeSelected() {
var id = chart.getSelectedAnnotationId()
chart.removeAnnotation(id);
}
// Removes all annotations from the chart
function removeAll() {
chart.removeAllAnnotations();
}
</script>
<!-- table settings -->
<style type="text/css">
table.settings {
border-style: solid;
border-width: 1px;
border-color: #D0CDC9;
}
table.settings tr th {
font:normal 7pt 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 8pt Verdana;
padding-bottom:2px;
padding-top:2px;
padding-left:10px;
text-align:left;
}
table.log td {
height: 18px;
}
table.settings tr td.offset {
text-align: center;
vertical-align: middle;
font-weight: bold;
border: 0;
}
input {
width: 100%
}
</style>
</head>
<body>
<div id="chartContainer"><!-- Chart Container --></div>
<table>
<tr>
<td width="530">
<!-- events log -->
<table class="settings log" width="100%">
<tr><th colspan="3">Events Log:</th></tr>
<tr><th width="170">Annotation event</th><th width="200">Annotation id</th><th>Mouse coordinates</th></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
<tr><td> </td><td> </td><td> </td></tr>
</table>
</td>
</tr>
<tr><td>
<table class="settings">
<tr>
<th>AvaliableAction</th>
</tr>
<tr>
<td><input id="btnOnePointAnnotStart" type="button" value="Add one-anchor-point annotation"
onclick="startOnePointAnnotation();" disabled="disabled" autocomplete="off"/></td>
</tr>
<tr>
<td><input id="btnTwoPointsAnnotStart" type="button" value="Add two-anchor-points annotation"
onclick="startTwoPointsAnnotation();" disabled="disabled" autocomplete="off"/></td>
</tr>
<tr>
<td><input id="btnThreePointsAnnotStart" type="button" value="Add three-anchor-points annotation"
onclick="startThreePointsAnnotation();" disabled="disabled" autocomplete="off"/></td>
</tr>
<tr>
<td><input id="btnStopDrawing" type="button" value="Stop drawing annotations"
onclick="stopDrawing();" disabled="disabled" autocomplete="off"/></td>
</tr>
<tr>
<td><input id="btnRemoveSelected" type="button" value="Remove selected annotation"
onclick="removeSelected();" disabled="disabled" autocomplete="off"/></td>
</tr>
<tr>
<td><input id="btnRemoveAll" type="button" value="Remove all annotations"
onclick="removeAll();" disabled="disabled" autocomplete="off"/></td>
</tr>
</table>
</td></tr>
</table>
</body>
</html>
Sample Description
How to use this sample?
Sample shows how to handle events dispatched by annotations.
Click"Add one-anchor-point annotation", "Add two-anchor-points annotation" or "Add three-anchor-points annotation" button do draw a random annotation to the chart. To abort drawing click "Stop drawing annotations", to remove selected or all click "Remove selected annotation" or "Remove all annotations".
When you click buttons, select, deselect, remove annotations, engine dispatches different events which are shown in log table.
How it works
When "Add one-anchor-point annotation", "Add two-anchor-points annotation" or "Add three-anchor-points annotation" buttons are clicked startDrawingAnnotation starts drawing mode. When latter happens component dispatches onAnnotationDrawingStart event. When user finishes drawing onAnnotationDrawingFinish is fired.
Selection and deselection fires onAnnotationSelect and onAnnotationDeselect. Removal using Delete key fires onAnnotationRemove. You can learn more about events handling on Event handling article.
AnyChartStock JavaScript API
This sample uses the following methods, properties and events from AnyChartStock JavaScript API:
Prerequisites
This section lists all configuration, data and auxiliary files required for this sample.
Configuration file
CSV files
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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