OHIF-223: Add "Clear" all measurements to annotation toolbar (#1861)

* Add clear button

* Use james event

* Create new commands module to default

extensions/cornerstone/src/commandsModule.js

@@ -121,6 +121,7 @@ const commandsModule = ({ servicesManager }) => {
             lesionNamingNumber,
             measurementNumber,
           } = measurementData;
+
           if (!_id) {
             return;
           }

extensions/cornerstone/src/init.js

@@ -271,6 +271,7 @@ const _connectToolsToMeasurementService = measurementService => {
   const csToolsVer4MeasurementSource = _initMeasurementService(
     measurementService
   );
+  _connectMeasurementServiceToTools(measurementService, csToolsVer4MeasurementSource);
   const { addOrUpdate, remove } = csToolsVer4MeasurementSource;
   const elementEnabledEvt = cornerstone.EVENTS.ELEMENT_ENABLED;
 
@@ -335,6 +336,30 @@ const _connectToolsToMeasurementService = measurementService => {
   });
 };
 
+const _connectMeasurementServiceToTools = (measurementService, measurementSource) => {
+  const { MEASUREMENTS_CLEARED, MEASUREMENT_REMOVED } = measurementService.EVENTS;
+  const sourceId = measurementSource.id;
+
+  measurementService.subscribe(MEASUREMENTS_CLEARED, () => {
+    cornerstoneTools.globalImageIdSpecificToolStateManager.restoreToolState(
+      {}
+    );
+    cornerstone.getEnabledElements().forEach(enabledElement => {
+      cornerstone.updateImage(enabledElement.element);
+    });
+  });
+
+  /* TODO: Remove per measurement
+  measurementService.subscribe(MEASUREMENT_REMOVED,
+    ({ source, measurement }) => {
+      if ([sourceId].includes(source.id)) {
+        // const annotation = getAnnotation('Length', measurement.id);
+        // iterate tool state
+      }
+    }
+  ); */
+};
+
 // const {
 //   MEASUREMENT_ADDED,
 //   MEASUREMENT_UPDATED,