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

89.47% Statements 51/57
68.75% Branches 11/16
83.33% Functions 15/18
89.28% Lines 50/56

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165                                201x 201x     79x       79x   79x       79x     79x 647x 647x   79x 647x 647x                 79x           77x 16x   16x 16x                   201x 12x 12x   201x             201x     1159x   1159x       1159x 1159x   325431x     1159x 14893x 14893x       1159x           1159x       1159x           201x             201x         201x   402x 4040x   4040x 3386x       654x   654x   738x     654x     654x 648x         6x     654x     402x   201x    
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) {
        const existingSegmentation = segmentationService.getSegmentation(segmentationId);
 
        if (existingSegmentation) {
          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 };
}