added property to set whether the outline is hull or rect

packages/demo-app-ts/src/data/generator.ts

@@ -33,6 +33,7 @@ export interface GeneratorNodeOptions {
   nodeIcons?: boolean;
   smallNodes?: boolean;
   contextMenus?: boolean;
+  hulledOutline?: boolean;
 }
 
 export interface GeneratorEdgeOptions {
@@ -53,7 +54,8 @@ export const DefaultNodeOptions: GeneratorNodeOptions = {
   nodeBadges: false,
   nodeIcons: false,
   smallNodes: false,
-  contextMenus: false
+  contextMenus: false,
+  hulledOutline: true
 };
 
 export const DefaultEdgeOptions: GeneratorEdgeOptions = {
@@ -76,6 +78,7 @@ export const getNodeOptions = (
   showStatusDecorator?: boolean;
   showDecorators?: boolean;
   showContextMenu?: boolean;
+  hulledOutline?: boolean;
   labelIconClass?: string;
   labelIcon?: React.ComponentClass<SVGIconProps>;
 } => {
@@ -91,6 +94,7 @@ export const getNodeOptions = (
     showStatusDecorator: nodeCreationOptions.statusDecorators,
     showDecorators: nodeCreationOptions.showDecorators,
     showContextMenu: nodeCreationOptions.contextMenus,
+    hulledOutline: nodeCreationOptions.hulledOutline,
     labelIconClass,
     labelIcon
   };
@@ -129,6 +133,23 @@ export const generateEdge = (
     tagStatus: options.edgeStatuses[index % options.edgeStatuses.length]
   });
 
+export const updateGroup = (group: NodeModel, nodeCreationOptions: GeneratorNodeOptions): NodeModel => {
+  return {
+    ...group,
+    data: {
+      badge: nodeCreationOptions.nodeBadges ? 'GN' : undefined,
+      badgeColor: '#F2F0FC',
+      badgeTextColor: '#5752d1',
+      badgeBorderColor: '#CBC1FF',
+      collapsedWidth: 75,
+      collapsedHeight: 75,
+      showContextMenu: nodeCreationOptions.contextMenus,
+      collapsible: true,
+      hulledOutline: nodeCreationOptions.hulledOutline
+    }
+  };
+};
+
 export const generateDataModel = (
   numNodes: number,
   numGroups: number,
@@ -167,7 +188,8 @@ export const generateDataModel = (
         collapsedWidth: 75,
         collapsedHeight: 75,
         showContextMenu: nodeCreationOptions.contextMenus,
-        collapsible: true
+        collapsible: true,
+        hulledOutline: nodeOptions.hulledOutline
       }
     };
     if (level === groupDepth) {

packages/demo-app-ts/src/demos/TopologyPackage.tsx

@@ -26,7 +26,7 @@ import {
 import stylesComponentFactory from '../components/stylesComponentFactory';
 import defaultLayoutFactory from '../layouts/defaultLayoutFactory';
 import defaultComponentFactory from '../components/defaultComponentFactory';
-import { generateDataModel, generateEdge, generateNode } from '../data/generator';
+import { generateDataModel, generateEdge, generateNode, updateGroup } from '../data/generator';
 import { useTopologyOptions } from '../utils/useTopologyOptions';
 import { Tab, Tabs, TabTitleText } from '@patternfly/react-core';
 
@@ -157,7 +157,7 @@ const TopologyViewComponent: React.FunctionComponent<TopologyViewComponentProps>
     if (nodes.length) {
       const updatedNodes: NodeModel[] = nodes.map((node, index) => {
         if (node.group) {
-          return node;
+          return updateGroup(node, nodeOptions);
         }
         return {
           ...node,

packages/demo-app-ts/src/utils/useTopologyOptions.tsx

@@ -177,6 +177,14 @@ export const useTopologyOptions = (
         >
           Context Menus
         </SelectOption>
+        <SelectOption
+          hasCheckbox
+          value="Rectangle Groups"
+          isSelected={!nodeOptions.hulledOutline}
+          onClick={() => setNodeOptions((prev) => ({ ...prev, hulledOutline: !prev.hulledOutline }))}
+        >
+          Rectangle Groups
+        </SelectOption>
       </SelectList>
     );
 

packages/module/src/components/groups/DefaultGroup.tsx

@@ -77,6 +77,8 @@ interface DefaultGroupProps {
   onContextMenu?: (e: React.MouseEvent) => void;
   /** Flag indicating that the context menu for the node is currently open  */
   contextMenuOpen?: boolean;
+  /** Flag indicating whether to use hull layout or rect layout for expanded groups. Defaults to hull (true) */
+  hulledOutline?: boolean;
 }
 
 type DefaultGroupInnerProps = Omit<DefaultGroupProps, 'element'> & { element: Node };

packages/module/src/components/groups/DefaultGroupExpanded.tsx

@@ -19,6 +19,7 @@ import {
   WithSelectionProps
 } from '../../behavior';
 import { CollapsibleGroupProps } from './types';
+import Rect from '../../geom/Rect';
 
 type DefaultGroupExpandedProps = {
   className?: string;
@@ -41,6 +42,7 @@ type DefaultGroupExpandedProps = {
   labelIconClass?: string; // Icon to show in label
   labelIcon?: string;
   labelIconPadding?: number;
+  hulledOutline?: boolean;
 } & CollapsibleGroupProps & WithDragNodeProps & WithSelectionProps & WithDndDropProps & WithContextMenuProps;
 
 type PointWithSize = [number, number, number];
@@ -96,7 +98,8 @@ const DefaultGroupExpanded: React.FunctionComponent<DefaultGroupExpandedProps> =
   labelIconClass,
   labelIcon,
   labelIconPadding,
-  onCollapseChange
+  onCollapseChange,
+  hulledOutline = true,
 }) => {
   const [hovered, hoverRef] = useHover();
   const [labelHover, labelHoverRef] = useHover();
@@ -107,6 +110,7 @@ const DefaultGroupExpanded: React.FunctionComponent<DefaultGroupExpandedProps> =
   const outlineRef = useCombineRefs(dndDropRef, anchorRef);
   const labelLocation = React.useRef<PointWithSize>();
   const pathRef = React.useRef<string>();
+  const boxRef = React.useRef<Rect | null>(null);
 
   let parent = element.getParent();
   let altGroup = false;
@@ -119,7 +123,7 @@ const DefaultGroupExpanded: React.FunctionComponent<DefaultGroupExpandedProps> =
   const padding = maxPadding(element.getStyle<NodeStyle>().padding ?? 17);
   const hullPadding = (point: PointWithSize | PointTuple) => (point[2] || 0) + padding;
 
-  if (!droppable || !pathRef.current || !labelLocation.current) {
+  if (!droppable || (hulledOutline && !pathRef.current) || (!hulledOutline && !boxRef.current) || !labelLocation.current) {
     const children = element.getNodes().filter(c => c.isVisible());
     if (children.length === 0) {
       return null;
@@ -141,17 +145,23 @@ const DefaultGroupExpanded: React.FunctionComponent<DefaultGroupExpandedProps> =
         points.push([x + width, y + height, 0] as PointWithSize);
       }
     });
-    const hullPoints: (PointWithSize | PointTuple)[] =
-      points.length > 2 ? polygonHull(points as PointTuple[]) : (points as PointTuple[]);
-    if (!hullPoints) {
-      return null;
-    }
 
-    // change the box only when not dragging
-    pathRef.current = hullPath(hullPoints as PointTuple[], hullPadding);
+    if (hulledOutline) {
+      const hullPoints: (PointWithSize | PointTuple)[] =
+        points.length > 2 ? polygonHull(points as PointTuple[]) : (points as PointTuple[]);
+      if (!hullPoints) {
+        return null;
+      }
 
-    // Compute the location of the group label.
-    labelLocation.current = computeLabelLocation(hullPoints as PointWithSize[]);
+      // change the box only when not dragging
+      pathRef.current = hullPath(hullPoints as PointTuple[], hullPadding);
+
+      // Compute the location of the group label.
+      labelLocation.current = computeLabelLocation(hullPoints as PointWithSize[]);
+    } else {
+      boxRef.current = element.getBounds();
+      labelLocation.current = [boxRef.current.x + boxRef.current.width / 2, boxRef.current.y + boxRef.current.height, 0];
+    }
   }
 
   const groupClassName = css(
@@ -177,14 +187,18 @@ const DefaultGroupExpanded: React.FunctionComponent<DefaultGroupExpandedProps> =
     <g ref={labelHoverRef} onContextMenu={onContextMenu} onClick={onSelect} className={groupClassName}>
       <Layer id={GROUPS_LAYER}>
         <g ref={refs} onContextMenu={onContextMenu} onClick={onSelect} className={innerGroupClassName}>
-          <path ref={outlineRef} className={styles.topologyGroupBackground} d={pathRef.current} />
+          {hulledOutline ? (
+            <path ref={outlineRef} className={styles.topologyGroupBackground} d={pathRef.current} />
+          ) : (
+            <rect ref={outlineRef} className={styles.topologyGroupBackground} x={boxRef.current.x} y={boxRef.current.y} width={boxRef.current.width} height={boxRef.current.height}/>
+          )}
         </g>
       </Layer>
       {showLabel && (label || element.getLabel()) && (
         <NodeLabel
           className={styles.topologyGroupLabel}
           x={labelLocation.current[0]}
-          y={labelLocation.current[1] + hullPadding(labelLocation.current) + 24}
+          y={labelLocation.current[1] + (hulledOutline ? hullPadding(labelLocation.current) : 0) + 24}
           paddingX={8}
           paddingY={5}
           dragRef={dragNodeRef ? dragLabelRef : undefined}