All files / extensions/cornerstone/src/utils segmentationHandlers.ts

85.45% Statements 47/55
66.66% Branches 10/15
77.77% Functions 14/18
85.18% Lines 46/54

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161                                74x 74x     48x       48x   48x       48x     48x 744x 744x   48x 744x 744x                 48x           47x 27x                 74x       74x             74x     588x   588x       588x 588x   279137x     588x 13996x 13996x       588x           588x       588x           74x             74x         74x   148x 1045x   1045x 869x       176x   176x   176x     176x     176x 132x         44x     176x     148x   74x    
import * as cornerstoneTools from '@cornerstonejs/tools';
import { updateSegmentationStats } from './updateSegmentationStats';
import { useSelectedSegmentationsForViewportStore } from '../stores';
import { SegmentationRepresentations } from '@cornerstonejs/tools/enums';
 
/**
 * Sets up the handler for segmentation data modification events
 */
export function setupSegmentationDataModifiedHandler({
  segmentationService,
  customizationService,
  commandsManager,
}) {
  // A flag to indicate if the event is unsubscribed to. This is important because
  // the debounced callback does an await and in that period of time the event may have
  // been unsubscribed.
  let isUnsubscribed = false;
  const { unsubscribe: debouncedUnsubscribe } = segmentationService.subscribeDebounced(
    segmentationService.EVENTS.SEGMENTATION_DATA_MODIFIED,
    async ({ segmentationId }) => {
      const disableUpdateSegmentationStats = customizationService.getCustomization(
        'panelSegmentation.disableUpdateSegmentationStats'
      );
 
      const segmentation = segmentationService.getSegmentation(segmentationId);
 
      Iif (!segmentation || disableUpdateSegmentationStats) {
        return;
      }
 
      const readableText = customizationService.getCustomization('panelSegmentation.readableText');
 
      // Check for segments with bidirectional measurements and update them
      const segmentIndices = Object.keys(segmentation.segments)
        .map(index => parseInt(index))
        .filter(index => index > 0);
 
      for (const segmentIndex of segmentIndices) {
        const segment = segmentation.segments[segmentIndex];
        Iif (segment?.cachedStats?.namedStats?.bidirectional) {
          // Run the command to update the bidirectional measurement
          commandsManager.runCommand('runSegmentBidirectional', {
            segmentationId,
            segmentIndex,
          });
        }
      }
 
      const updatedSegmentation = await updateSegmentationStats({
        segmentation,
        segmentationId,
        readableText,
      });
 
      if (!isUnsubscribed && updatedSegmentation) {
        segmentationService.addOrUpdateSegmentation({
          segmentationId,
          segments: updatedSegmentation.segments,
        });
      }
    },
    1000
  );
 
  const unsubscribe = () => {
    isUnsubscribed = true;
    debouncedUnsubscribe();
  };
  return { unsubscribe };
}
 
/**
 * Sets up the handler for segmentation modification events
 */
export function setupSegmentationModifiedHandler({ segmentationService }) {
  const { unsubscribe } = segmentationService.subscribe(
    segmentationService.EVENTS.SEGMENTATION_MODIFIED,
    async ({ segmentationId }) => {
      const segmentation = segmentationService.getSegmentation(segmentationId);
 
      Iif (!segmentation) {
        return;
      }
 
      const annotationState = cornerstoneTools.annotation.state.getAllAnnotations();
      const bidirectionalAnnotations = annotationState.filter(
        annotation =>
          annotation.metadata.toolName === cornerstoneTools.SegmentBidirectionalTool.toolName
      );
 
      const segmentIndices = Object.keys(segmentation.segments)
        .map(index => parseInt(index))
        .filter(index => index > 0);
 
      // check if there is a bidirectional data that exists but the segment
      // does not exists anymore we need to remove the bidirectional data
      const bidirectionalAnnotationsToRemove = bidirectionalAnnotations.filter(
        annotation =>
          annotation.metadata.segmentationId === segmentationId &&
          !segmentIndices.includes(annotation.metadata.segmentIndex)
      );
 
      const toRemoveUIDs = bidirectionalAnnotationsToRemove.map(
        annotation => annotation.annotationUID
      );
 
      toRemoveUIDs.forEach(uid => {
        cornerstoneTools.annotation.state.removeAnnotation(uid);
      });
    }
  );
 
  return { unsubscribe };
}
 
/**
 * Sets up auto tab switching for when the first segmentation is added into the viewer.
 */
export function setUpSelectedSegmentationsForViewportHandler({ segmentationService }) {
  const selectedSegmentationsForViewportEvents = [
    segmentationService.EVENTS.SEGMENTATION_MODIFIED,
    segmentationService.EVENTS.SEGMENTATION_REPRESENTATION_MODIFIED,
  ];
 
  const unsubscribeSelectedSegmentationsForViewportEvents = selectedSegmentationsForViewportEvents
    .map(eventName =>
      segmentationService.subscribe(eventName, event => {
        const { viewportId } = event;
 
        if (!viewportId) {
          return;
        }
 
        const { selectedSegmentationsForViewport, setSelectedSegmentationsForViewport } =
          useSelectedSegmentationsForViewportStore.getState();
 
        const representations = segmentationService.getSegmentationRepresentations(viewportId);
 
        const activeRepresentation = representations.find(representation => representation.active);
 
        const typeToSegmentationIdMap =
          selectedSegmentationsForViewport[viewportId] ??
          new Map<SegmentationRepresentations, string>();
 
        if (activeRepresentation) {
          typeToSegmentationIdMap.set(
            activeRepresentation.type,
            activeRepresentation.segmentationId
          );
        } else {
          typeToSegmentationIdMap.clear();
        }
 
        setSelectedSegmentationsForViewport(viewportId, typeToSegmentationIdMap);
      })
    )
    .map(subscription => subscription.unsubscribe);
 
  return { unsubscribeSelectedSegmentationsForViewportEvents };
}