From 0b5ac205c6aed000c5c8f8713735bd286223ce99 Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 21 Jul 2025 22:53:09 +0200
Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025

---
 .../examples/graph2d/09_external_legend.html  | 363 ++++++++++++++++++
 1 file changed, 363 insertions(+)
 create mode 100644 js/dos/ext/vis/examples/graph2d/09_external_legend.html
diff --git a/js/dos/ext/vis/examples/graph2d/09_external_legend.html b/js/dos/ext/vis/examples/graph2d/09_external_legend.html
new file mode 100644
index 0000000..39ec322
--- /dev/null
+++ b/js/dos/ext/vis/examples/graph2d/09_external_legend.html
@@ -0,0 +1,363 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Graph2d | External legend Example</title>
+  <link href="../../dist/vis.css" rel="stylesheet" type="text/css" />
+  <style type="text/css">
+    body, html {
+      font-family: sans-serif;
+    }
+
+    .custom-style1 {
+      fill: #f2ea00;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #b3ab00;
+    }
+
+    .custom-style2 {
+      fill: #00a0f2;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #050092;
+    }
+
+    .custom-style3 {
+      fill: #00f201;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #029200;
+    }
+
+    path.custom-style3.fill {
+      fill-opacity:0.5 !important;
+      stroke: none;
+    }
+
+    .vis-graph-group0 {
+      fill:#4f81bd;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #4f81bd;
+    }
+
+    .vis-graph-group1 {
+      fill:#f79646;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #f79646;
+    }
+
+    .vis-graph-group2 {
+      fill: #8c51cf;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #8c51cf;
+    }
+
+    .vis-graph-group3 {
+      fill: #75c841;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #75c841;
+    }
+
+    .vis-graph-group4 {
+      fill: #ff0100;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #ff0100;
+    }
+
+    .vis-graph-group5 {
+      fill: #37d8e6;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #37d8e6;
+    }
+
+    .vis-graph-group6 {
+      fill: #042662;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #042662;
+    }
+
+    .vis-graph-group7 {
+      fill:#00ff26;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #00ff26;
+    }
+
+    .vis-graph-group8 {
+      fill:#ff00ff;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #ff00ff;
+    }
+
+    .vis-graph-group9 {
+      fill: #8f3938;
+      fill-opacity:0;
+      stroke-width:2px;
+      stroke: #8f3938;
+    }
+
+    .vis-fill {
+      fill-opacity:0.1;
+      stroke: none;
+    }
+
+
+    .vis-bar {
+      fill-opacity:0.5;
+      stroke-width:1px;
+    }
+
+    .vis-point {
+      stroke-width:2px;
+      fill-opacity:1.0;
+    }
+
+
+    .vis-legend-background {
+      stroke-width:1px;
+      fill-opacity:0.9;
+      fill: #ffffff;
+      stroke: #c2c2c2;
+    }
+
+
+    .vis-outline {
+      stroke-width:1px;
+      fill-opacity:1;
+      fill: #ffffff;
+      stroke: #e5e5e5;
+    }
+
+    .vis-icon-fill {
+      fill-opacity:0.3;
+      stroke: none;
+    }
+
+    div.description-container {
+      float:left;
+      height:30px;
+      width:160px;
+      padding-left:5px;
+      padding-right:5px;
+      line-height: 30px;
+    }
+
+    div.icon-container {
+      float:left;
+    }
+
+    div.legend-element-container {
+      display:inline-block;
+      width:200px;
+      height:30px;
+      border-style:solid;
+      border-width:1px;
+      border-color: #e0e0e0;
+      background-color: #ffffff;
+      margin:4px;
+      padding:4px;
+      -webkit-touch-callout: none;
+      -webkit-user-select: none;
+      -khtml-user-select: none;
+      -moz-user-select: none;
+      -ms-user-select: none;
+      user-select: none;
+      cursor:pointer;
+    }
+    div.legend-element-container.hidden {
+      background-color: #d3e6ff;
+    }
+
+    svg.legend-icon {
+      width:30px;
+      height:30px;
+    }
+
+    div.external-legend {
+      position:relative;
+      margin-left: -5px;
+      width: 900px;
+    }
+  </style>
+
+  <script src="../../dist/vis.js"></script>
+
+  <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-61231638-1', 'auto');ga('send', 'pageview');</script></head>
+<body>
+<h2>Graph2d | External custom legend</h2>
+<div style="width:800px; font-size:14px; text-align: justify;">
+  This example shows how to create an external custom legend using the getLegend function. We use normal JavaScript to show and hide the
+  groups by updating the dataset.
+
+</div>
+<br />
+<div id="Legend" class="external-legend"></div>
+<div id="visualization"></div>
+
+
+<script type="text/javascript">
+  // create a dataSet with groups
+  var names = ['SquareShaded', 'Bargraph', 'Blank', 'CircleShaded'];
+  var groups = new vis.DataSet();
+  groups.add({
+    id: 0,
+    content: names[0],
+    className: 'custom-style1',
+    options: {
+      drawPoints: {
+        style: 'square' // square, circle
+      },
+      shaded: {
+        orientation: 'bottom' // top, bottom
+      }
+    }});
+
+  groups.add({
+    id: 1,
+    content: names[1],
+    className: 'custom-style2',
+    options: {
+      style:'bar',
+      drawPoints: {style: 'circle',
+        size: 10
+      }
+    }});
+
+  groups.add({
+    id: 2,
+    content: names[2],
+    options: {
+      yAxisOrientation: 'right', // right, left
+      drawPoints: false
+    }
+  });
+
+  groups.add({
+    id: 3,
+    content: names[3],
+    className: 'custom-style3',
+    options: {
+      yAxisOrientation: 'right', // right, left
+      drawPoints: {
+        style: 'circle' // square, circle
+      },
+      shaded: {
+        orientation: 'top' // top, bottom
+      }
+    }});
+
+  var container = document.getElementById('visualization');
+  var items = [
+    {x: '2014-06-12', y: 0 , group: 0},
+    {x: '2014-06-13', y: 30, group: 0},
+    {x: '2014-06-14', y: 10, group: 0},
+    {x: '2014-06-15', y: 15, group: 1},
+    {x: '2014-06-16', y: 30, group: 1},
+    {x: '2014-06-17', y: 10, group: 1},
+    {x: '2014-06-18', y: 15, group: 1},
+    {x: '2014-06-19', y: 52, group: 1},
+    {x: '2014-06-20', y: 10, group: 1},
+    {x: '2014-06-21', y: 20, group: 2},
+    {x: '2014-06-22', y: 600, group: 2},
+    {x: '2014-06-23', y: 100, group: 2},
+    {x: '2014-06-24', y: 250, group: 2},
+    {x: '2014-06-25', y: 300, group: 2},
+    {x: '2014-06-26', y: 200, group: 3},
+    {x: '2014-06-27', y: 600, group: 3},
+    {x: '2014-06-28', y: 1000, group: 3},
+    {x: '2014-06-29', y: 250, group: 3},
+    {x: '2014-06-30', y: 300, group: 3}
+  ];
+
+  var dataset = new vis.DataSet(items);
+  var options = {
+    dataAxis: {showMinorLabels: false},
+    start: '2014-06-09',
+    end: '2014-07-03'
+  };
+  var graph2d = new vis.Graph2d(container, items, groups, options);
+
+
+  /**
+   * this function fills the external legend with content using the getLegend() function.
+   */
+  function populateExternalLegend() {
+    var groupsData = groups.get();
+    var legendDiv = document.getElementById("Legend");
+    legendDiv.innerHTML = "";
+
+    // get for all groups:
+    for (var i = 0; i < groupsData.length; i++) {
+      // create divs
+      var containerDiv = document.createElement("div");
+      var iconDiv = document.createElement("div");
+      var descriptionDiv = document.createElement("div");
+
+      // give divs classes and Ids where necessary
+      containerDiv.className = 'legend-element-container';
+      containerDiv.id = groupsData[i].id + "_legendContainer"
+      iconDiv.className = "icon-container";
+      descriptionDiv.className = "description-container";
+
+      // get the legend for this group.
+      var legend = graph2d.getLegend(groupsData[i].id,30,30);
+
+      // append class to icon. All styling classes from the vis.css have been copied over into the head here to be able to style the
+      // icons with the same classes if they are using the default ones.
+      legend.icon.setAttributeNS(null, "class", "legend-icon");
+
+      // append the legend to the corresponding divs
+      iconDiv.appendChild(legend.icon);
+      descriptionDiv.innerHTML = legend.label;
+
+      // determine the order for left and right orientation
+      if (legend.orientation == 'left') {
+        descriptionDiv.style.textAlign = "left";
+        containerDiv.appendChild(iconDiv);
+        containerDiv.appendChild(descriptionDiv);
+      }
+      else {
+        descriptionDiv.style.textAlign = "right";
+        containerDiv.appendChild(descriptionDiv);
+        containerDiv.appendChild(iconDiv);
+      }
+
+      // append to the legend container div
+      legendDiv.appendChild(containerDiv);
+
+      // bind click event to this legend element.
+      containerDiv.onclick = toggleGraph.bind(this,groupsData[i].id);
+    }
+  }
+
+  /**
+   * This function switchs the visible option of the selected group on an off.
+   * @param groupId
+   */
+  function toggleGraph(groupId) {
+    // get the container that was clicked on.
+    var container = document.getElementById(groupId + "_legendContainer")
+    // if visible, hide
+    if (graph2d.isGroupVisible(groupId) == true) {
+      groups.update({id:groupId, visible:false});
+      container.className = container.className + " hidden";
+    }
+    else { // if invisible, show
+      groups.update({id:groupId, visible:true});
+      container.className = container.className.replace("hidden","");
+    }
+  }
+
+  populateExternalLegend()
+
+</script>
+</body>
+</html>
\ No newline at end of file
