tests/annotation.html

   1 <html>
   2   <head>
   3     <title>demo</title>
   4     <!--[if IE]>
   5     <script type="text/javascript" src="excanvas.js"></script>
   6     <![endif]-->
   7     <script type="text/javascript" src="../strftime/strftime-min.js"></script>
   8     <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
   9     <script type="text/javascript" src="../dygraph-canvas.js"></script>
  10     <script type="text/javascript" src="../dygraph.js"></script>
  11     <style type="text/css">
  12     .annotation {
  13     }
  14     </style>
  15   </head>
  16   <body>
  17     <input type="button" value="Add Annotation" onclick="add()" />
  18     <div id="events"> </div>
  19     <div style="position:absolute; left:200px; top: 200px;" id="g"></div>
  20     <div style="position:absolute; left:700px; top: 200px;" id="list"></div>
  21
  22     <script type="text/javascript">
  23       var eventDiv = document.getElementById("events");
  24       function nameAnnotation(ann) {
  25         return "(" + ann.series + ", " + ann.x + ")";
  26       }
  27
  28       g = new DateGraph(
  29               document.getElementById("g"),
  30               function() {
  31                 var zp = function(x) { if (x < 10) return "0"+x; else return x; };
  32                 var r = "date,parabola,line,another line,sine wave\n";
  33                 for (var i=1; i<=31; i++) {
  34                   r += "200610" + zp(i);
  35                   r += "," + 10*(i*(31-i));
  36                   r += "," + 10*(8*i);
  37                   r += "," + 10*(250 - 8*i);
  38                   r += "," + 10*(125 + 125 * Math.sin(0.3*i));
  39                   r += "\n";
  40                 }
  41                 return r;
  42               },
  43               {
  44                 rollPeriod: 1,
  45                 showRoller: true,
  46                 width: 480,
  47                 height: 320,
  48                 drawCallback: function(g) {
  49                   var ann = g.annotations();
  50                   var html = "";
  51                   for (var i = 0; i < ann.length; i++) {
  52                     var name = nameAnnotation(ann[i]);
  53                     html += "<span id='" + name + "'>"
  54                     html += name + ": " + ann[i].shortText + " -> ";
  55                     html += ann[i].text + "</span><br/>";
  56                   }
  57                   document.getElementById("list").innerHTML = html;
  58                 },
  59               }
  60           );
  61
  62       var last_ann = 0;
  63       annotations = [];
  64       for (var x = 10; x < 15; x += 2) {
  65         annotations.push( {
  66           series: 'sine wave',
  67           x: "200610" + x,
  68           shortText: x,
  69           text: 'Stock Market Crash ' + x
  70         } );
  71         last_ann = x;
  72       }
  73       annotations.push( {
  74         series: 'another line',
  75         x: "20061013",
  76         icon: 'dollar.png',
  77         iconWidth: 18,
  78         iconHeight: 23,
  79         tickHeight: 4,
  80         text: 'Another one',
  81         cssClass: 'annotation',
  82         clickHandler: function() {
  83           document.getElementById("events").innerHTML += "special handler<br/>";
  84         }
  85       } );
  86       g.setAnnotations(annotations);
  87
  88       function add() {
  89         var x = last_ann + 2;
  90         var annnotations = g.annotations();
  91         annotations.push( {
  92           series: 'line',
  93           x: "200610" + x,
  94           shortText: x,
  95           text: 'Line ' + x,
  96           tickHeight: 10
  97         } );
  98         last_ann = x;
  99         g.setAnnotations(annotations);
 100       }
 101
 102       var saveBg = '';
 103       g.updateOptions( {
 104         annotationClickHandler: function(ann, point, dg, event) {
 105           eventDiv.innerHTML += "click: " + nameAnnotation(ann) + "<br/>";
 106         },
 107         annotationDblClickHandler: function(ann, point, dg, event) {
 108           eventDiv.innerHTML += "dblclick: " + nameAnnotation(ann) + "<br/>";
 109         },
 110         annotationMouseOverHandler: function(ann, point, dg, event) {
 111           document.getElementById(nameAnnotation(ann)).style.fontWeight = 'bold';
 112           saveBg = ann.div.style.backgroundColor;
 113           ann.div.style.backgroundColor = '#ddd';
 114         },
 115         annotationMouseOutHandler: function(ann, point, dg, event) {
 116           document.getElementById(nameAnnotation(ann)).style.fontWeight = 'normal';
 117           ann.div.style.backgroundColor = saveBg;
 118         }
 119       });
 120     </script>
 121 </body>
 122 </html>