feature(segmentation): Add contour tools and utilities in a side panel (#5517)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Dan Rukas <dan.rukas@gmail.com>

extensions/cornerstone/src/utils/segmentationExportUtils.ts

@@ -0,0 +1,86 @@
+import { cache, metaData } from '@cornerstonejs/core';
+import { Types as cstTypes } from '@cornerstonejs/tools';
+
+/**
+ * Checks if a labelmap segmentation has exportable data
+ * A label map is exportable if it has any pixel data and
+ * it is referenced by a display set that is reconstructable.
+ *
+ * @param labelmap - The labelmap representation data
+ * @param displaySetService - The display set service instance
+ * @returns boolean - Whether the labelmap has exportable data
+ */
+export const hasExportableLabelMapData = (
+  labelmap: cstTypes.LabelmapSegmentationData | undefined,
+  displaySetService: any
+): boolean => {
+  if (!labelmap) {
+    return false;
+  }
+
+  const imageIds = labelmap?.imageIds;
+  if (!imageIds?.length) {
+    return false;
+  }
+
+  const hasPixelData = imageIds.some(imageId => {
+    const pixelData = cache.getImage(imageId)?.getPixelData();
+    if (!pixelData) {
+      return false;
+    }
+
+    for (let i = 0; i < pixelData.length; i++) {
+      if (pixelData[i] !== 0) {
+        return true;
+      }
+    }
+  });
+
+  if (!hasPixelData) {
+    return false;
+  }
+
+  const referencedImageIds = labelmap?.referencedImageIds;
+
+  if (!referencedImageIds) {
+    return false;
+  }
+  const firstImageId = referencedImageIds[0];
+  const instance = metaData.get('instance', firstImageId);
+
+  if (!instance) {
+    return false;
+  }
+
+  const SOPInstanceUID = instance.SOPInstanceUID || instance.SopInstanceUID;
+  const SeriesInstanceUID = instance.SeriesInstanceUID;
+  const displaySet = displaySetService.getDisplaySetForSOPInstanceUID(
+    SOPInstanceUID,
+    SeriesInstanceUID
+  );
+
+  return displaySet?.isReconstructable;
+};
+
+/**
+ * Checks if a contour segmentation has exportable data
+ * A contour is exportable if it has any contour annotation/geometry data.
+ *
+ * @param contour - The contour representation data
+ * @returns boolean - Whether the contour has exportable data
+ */
+export const hasExportableContourData = (
+  contour: cstTypes.ContourSegmentationData | undefined
+): boolean => {
+  if (!contour) {
+    return false;
+  }
+
+  const contourAnnotationUIDsMap = contour?.annotationUIDsMap;
+
+  if (!contourAnnotationUIDsMap) {
+    return false;
+  }
+
+  return contourAnnotationUIDsMap.size > 0;
+};