viewport isViewportPreScaled.ts

50% Statements 4/8

37.5% Branches 3/8

100% Functions 1/1

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  import type { Types } from '@cornerstonejs/core';
import {
  cache,
  StackViewport,
  BaseVolumeViewport,
  utilities,
} from '@cornerstonejs/core';
 
function isViewportPreScaled(
  viewport: Types.IStackViewport | Types.IVolumeViewport,
  targetId: string
): boolean {
  if (viewport instanceof BaseVolumeViewport) {
    const volumeId = utilities.getVolumeId(targetId);
    const volume = cache.getVolume(volumeId);
    return !!volume?.scaling && Object.keys(volume.scaling).length > 0;
  } else Eif (viewport instanceof StackViewport) {
    const { preScale } = viewport.getImageData() || {};
    return !!preScale?.scaled;
  } else {
    return false;
  }
}
 
export { isViewportPreScaled };