feat(displayArea): add display area to hanging protocol (#3691)

Co-authored-by: Ouwen Huang <ouwen.oh@gmail.com>

extensions/cornerstone/src/services/ViewportService/CornerstoneViewportService.ts

@@ -249,6 +249,7 @@ class CornerstoneViewportService extends PubSubService implements IViewportServi
     const type = viewportInfo.getViewportType();
     const background = viewportInfo.getBackground();
     const orientation = viewportInfo.getOrientation();
+    const displayArea = viewportInfo.getDisplayArea();
 
     const viewportInput: Types.PublicViewportInput = {
       viewportId,
@@ -257,6 +258,7 @@ class CornerstoneViewportService extends PubSubService implements IViewportServi
       defaultOptions: {
         background,
         orientation,
+        displayArea,
       },
     };
 

extensions/cornerstone/src/services/ViewportService/Viewport.ts

@@ -21,6 +21,7 @@ export type ViewportOptions = {
   presentationIds?: UITypes.PresentationIds;
   orientation?: Enums.OrientationAxis;
   background?: Types.Point3;
+  displayArea?: Types.DisplayArea;
   syncGroups?: SyncGroup[];
   initialImageOptions?: InitialImageOptions;
   customViewportProps?: Record<string, unknown>;
@@ -39,6 +40,7 @@ export type PublicViewportOptions = {
   viewportId?: string;
   orientation?: Enums.OrientationAxis;
   background?: Types.Point3;
+  displayArea?: Types.DisplayArea;
   syncGroups?: SyncGroup[];
   initialImageOptions?: InitialImageOptions;
   customViewportProps?: Record<string, unknown>;
@@ -265,6 +267,10 @@ class ViewportInfo {
     return this.viewportOptions.orientation;
   }
 
+  public getDisplayArea(): Types.DisplayArea {
+    return this.viewportOptions.displayArea;
+  }
+
   public getInitialImageOptions(): InitialImageOptions {
     return this.viewportOptions.initialImageOptions;
   }