TestConnector.html

<!DOCTYPE html>
<html>

<head>
  <title>Connector Annotation JavaScript Control Demo</title>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet">
	<link href="../../css/primitives.css" media="screen" rel="stylesheet" type="text/css" />
	<script type="text/javascript" src="../../primitives.js"></script>
  <script type="text/javascript" src="../../javascriptsamples.js"></script>
  <script type="text/javascript" src="../../interactivetests.js"></script>
  <link href="./css/styles.css" media="screen" rel="stylesheet" type="text/css" />

  <script type="text/javascript">
    var connectorAnnotationControl;
    var timer = null;
    var { Point, Rect, Size, Layers, ConnectorAnnotationControl } = primitives;
    var { ValueType, Render, PanelConfig, SizeConfig, ColorConfig, RadioBoxConfig, RangeConfig, DropDownBoxConfig, CaptionConfig, DropDownBoxConfig } = javascriptsamples;
    var { RenderEventArgs, createGraphics, PaletteItem, PlacementType, Colors, LineType, PolylinesBuffer, ConnectorOffbeat, ConnectorStraight, ConnectorAnnotationOffsetResolver } = interactivetests;

    var optionsRender = new Render([
        new PanelConfig("Layout & Shape Options", [
          new RadioBoxConfig("orientationType", primitives.OrientationType.Top, "Diagram orientation type", primitives.OrientationType, ValueType.Integer, onUpdate),
          new RadioBoxConfig("connectorPlacementType", primitives.ConnectorPlacementType.Offbeat, "Placement type", primitives.ConnectorPlacementType, ValueType.Integer, onUpdate),
          new RadioBoxConfig("connectorShapeType", primitives.ConnectorShapeType.OneWay, "Connector shape type", primitives.ConnectorShapeType, ValueType.Integer, onUpdate),
          new RangeConfig("labelOffset", 6, "Label Offset", 0, 20, 1, onUpdate),
          new RangeConfig("offset", 3, "Lines Offset", 0, 20, 1, onUpdate),
          new SizeConfig("labelSize", new Size(30, 14), "Label size", 1, 100, 1, onUpdate),
          new RadioBoxConfig("labelPlacementType", primitives.ConnectorLabelPlacementType.Between, "Label Placement", primitives.ConnectorLabelPlacementType, ValueType.Integer, onUpdate),
        ]),
        new PanelConfig("Style Options", [
          new RadioBoxConfig("lineType", primitives.LineType.Solid, "Line Type", primitives.LineType, ValueType.Integer, onUpdate),
          new ColorConfig("color", primitives.Colors.Black, "Color", false, onUpdate),
          new RangeConfig("lineWidth",2, "Line width", 0, 10, 1, onUpdate)
        ])
      ], {
        connectorPlacementType: primitives.ConnectorPlacementType.Offbeat,
        orientationType: primitives.OrientationType.Top,
        connectorShapeType: primitives.ConnectorShapeType.OneWay,
        labelOffset: 4,
        offset: 3,
        labelSize: new Size(40, 30),
        labelPlacementType: primitives.ConnectorLabelPlacementType.Between,

        lineType: primitives.LineType.Solid,
        color: primitives.Colors.Black,
        lineWidth: 2
      });

      document.addEventListener('DOMContentLoaded', function () {
        optionsRender.render(document.getElementById("westpanel"));

        onUpdate();

        window.addEventListener('resize', function (event) {
          onWindowResize();
        });
      });

      var fromPosition = new Rect(100, 100, 200, 100);
      var toPosition = new Rect(400, 400, 200, 100);

      const dragContext = {
        name: null,
        rectRef: null,
        startPoint: null,
        topLeftStartPoint: null,
        bottomRightStartPoint: null
      };

      function drag(event) {
        dragContext.startPoint = { x: event.clientX, y: event.clientY };
        dragContext.name = event.target.id;
        switch(dragContext.name) {
          case "fromrect":
            dragContext.topLeftStartPoint = new Point(fromPosition);
            break;
          case "torect":
            dragContext.topLeftStartPoint = new Point(toPosition);
            break;
        }
        event.dataTransfer.setDragImage(new Image(), 0, 0);
      }

      function dragresize(event) {
        dragContext.startPoint = { x: event.clientX, y: event.clientY };
        dragContext.name = event.target.id;
        switch(dragContext.name) {
          case "fromresizer":
            dragContext.bottomRightStartPoint = new Point(fromPosition.right(), fromPosition.bottom());
            break;
          case "toresizer":
            dragContext.bottomRightStartPoint = new Point(toPosition.right(), toPosition.bottom());
            break;
        }
        event.dataTransfer.setDragImage(new Image(), 0, 0);
      }

      function onDragOver(event) {
        event.preventDefault();
        const { name, startPoint, topLeftStartPoint, bottomRightStartPoint } = dragContext;
        var endPoint = new Point(event.clientX, event.clientY);
        switch(name) {
          case "fromrect":
            fromPosition.x = topLeftStartPoint.x + endPoint.x - startPoint.x;
            fromPosition.y = topLeftStartPoint.y + endPoint.y - startPoint.y;
            break;
          case "fromresizer":
            var bottomRight = new Point(bottomRightStartPoint.x + endPoint.x - startPoint.x, bottomRightStartPoint.y + endPoint.y - startPoint.y);
            var topLeft = new Point(fromPosition);
            fromPosition = new Rect(topLeft, bottomRight);
            break;
          case "torect":
            toPosition.x = topLeftStartPoint.x + endPoint.x - startPoint.x;
            toPosition.y = topLeftStartPoint.y + endPoint.y - startPoint.y;
            break;
          case "toresizer":
            var bottomRight = new Point(bottomRightStartPoint.x + endPoint.x - startPoint.x, bottomRightStartPoint.y + endPoint.y - startPoint.y);
            var topLeft = new Point(toPosition);
            toPosition = new Rect(topLeft, bottomRight);
            break;
        }

        onUpdate()
      }

      function drop(event) {
        event.preventDefault();
        dragContext.name = null;
      }

      function onUpdate() {
        var fromRect = document.getElementById("fromrect");
        fromRect.style.left = fromPosition.x + "px";
        fromRect.style.top = fromPosition.y + "px";
        fromRect.style.width = fromPosition.width + "px";
        fromRect.style.height = fromPosition.height + "px";

        var toRect = document.getElementById("torect");
        toRect.style.left = toPosition.x + "px";
        toRect.style.top = toPosition.y + "px";
        toRect.style.width = toPosition.width + "px";
        toRect.style.height = toPosition.height + "px";

        var options = optionsRender.getValues();
        options.label = "100";
        options.fromRectangle = fromPosition;
        options.toRectangle = toPosition;
        if (!connectorAnnotationControl) {
          connectorAnnotationControl = new ConnectorAnnotationControl(document.getElementById("annotation"), options);
        } else {
          connectorAnnotationControl.setOptions(options);
          connectorAnnotationControl.update();
        }
      }
 
      function onWindowResize() {
        if (timer == null) {
          timer = window.setTimeout(function () {
            onUpdate();
            window.clearTimeout(timer);
            timer = null;
          }, 300);
        }
      }
  </script>
</head>

<body>
	<div class="container-fluid">
	  <div class="row">
		<nav id="sidebarMenu" class="col-md-4 col-lg-2 d-md-block bg-light sidebar collapse" style="position: fixed; top: 0; bottom: 0px; overflow-y: auto; float: none;">
		  <div class="position-sticky pt-3">
			<div id="westpanel" class="flex-column">
      </div>
		  </div>
		</nav>
	
		<main class="col-md-8 ms-sm-auto col-lg-10 px-md-4">
        <div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
          <h1 class="h2">Connector Annotation Control</h1>
        </div>
        <div id="centerpanel" class="mediaPlaceholder my-2 w-100" ondrop="drop(event)" ondragover="onDragOver(event)" style="border-style: dotted; border-width: 1px;">
          <div id="placeholder" style="overflow: hidden; position: relative; width: 100%; height: 100%;">
            <div id="annotation" style="position: absolute; padding: 0px; margin: 0px; width: 100%; height: 100%;"></div>
            <div id="fromrect" style="position: absolute; top: 100px; left: 100px; width: 200px; height: 100px; border-width: 1px; border-style: dotted;" draggable="true" ondragstart="drag(event)">Drag & Resize Rect
              <div id="fromresizer" style="position: absolute; right: 0px; bottom: 0px; width: 16px; height: 8px; border-width: 1px; border-style: dotted;" draggable="true" ondragstart="dragresize(event)"></div>
            </div>
            <div id="torect" style="position: absolute; top: 400px; left: 400px; width: 200px; height: 100px; border-width: 1px; border-style: dotted;" draggable="true" ondragstart="drag(event)">Drag & Resize Rect
              <div id="toresizer" style="position: absolute; right: 0px; bottom: 0px; width: 16px; height: 8px; border-width: 1px; border-style: dotted;" draggable="true" ondragstart="dragresize(event)"></div>
            </div>
          </div>
        </div>
        <div id="southpanel" class="alert alert-primary" style="min-height: 60px;" role="alert">
		  </div>
		</main>
	  </div>
	</div>
  </body>
</html>