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import * as SegmentationState from '../../../stateManagement/segmentation/segmentationState';
import { getSegmentationRepresentations } from '../../../stateManagement/segmentation/segmentationState';
import { ToolGroupSpecificRepresentation } from '../../../types/SegmentationStateTypes';
import { triggerSegmentationRepresentationModified } from '../triggerSegmentationEvents';
import SegmentationRepresentations from '../../../enums/SegmentationRepresentations';
function getSegmentationIndices(segmentationId) {
const segmentation = SegmentationState.getSegmentation(segmentationId);
if (segmentation.type === SegmentationRepresentations.Labelmap) {
const volume = cache.getVolume(segmentationId);
const scalarData = volume.getScalarData();
const keySet = {};
for (let i = 0; i < scalarData.length; i++) {
const segmentIndex = scalarData[i];
if (segmentIndex !== 0 && !keySet[segmentIndex]) {
keySet[segmentIndex] = true;
}
}
return Object.keys(keySet).map((it) => parseInt(it, 10));
} else if (segmentation.type === SegmentationRepresentations.Contour) {
const geometryIds = segmentation.representationData.CONTOUR?.geometryIds;
if (!geometryIds) {
throw new Error(
`No geometryIds found for segmentationId ${segmentationId}`
);
}
return geometryIds.map((geometryId) => {
const geometry = cache.getGeometry(geometryId) as Types.IGeometry;
return (geometry.data as Types.IContourSet).getSegmentIndex();
});
}
}
/**
* Set the visibility of a segmentation representation for a given tool group. It fires
* a SEGMENTATION_REPRESENTATION_MODIFIED event. Visibility true will show all segments
* and visibility false will hide all segments"
*
* @triggers SEGMENTATION_REPRESENTATION_MODIFIED
* @param toolGroupId - The Id of the tool group that contains the segmentation.
* @param segmentationRepresentationUID - The id of the segmentation representation to modify its visibility.
* @param visibility - boolean
*/
function setSegmentationVisibility(
toolGroupId: string,
segmentationRepresentationUID: string,
visibility: boolean
): void {
const toolGroupSegmentationRepresentations =
getSegmentationRepresentations(toolGroupId);
if (!toolGroupSegmentationRepresentations) {
return;
}
const representation = toolGroupSegmentationRepresentations.find(
(representation: ToolGroupSpecificRepresentation) =>
representation.segmentationRepresentationUID ===
segmentationRepresentationUID
);
if (!representation) {
return;
}
const { segmentsHidden, segmentationId } = representation;
const indices = getSegmentationIndices(segmentationId);
// if visibility is set to be true, we need to remove all the segments
// from the segmentsHidden set, otherwise we need to add all the segments
// to the segmentsHidden set
if (visibility) {
segmentsHidden.clear();
} else {
indices.forEach((index) => {
segmentsHidden.add(index);
});
}
triggerSegmentationRepresentationModified(
toolGroupId,
representation.segmentationRepresentationUID
);
}
/**
* Get the visibility of a segmentation data for a given tool group.
*
* @param toolGroupId - The Id of the tool group that the segmentation
* data belongs to.
* @param segmentationRepresentationUID - The id of the segmentation data to get
* @returns A boolean value that indicates whether the segmentation data is visible or
* not on the toolGroup
*/
function getSegmentationVisibility(
toolGroupId: string,
segmentationRepresentationUID: string
): boolean | undefined {
const toolGroupSegmentationRepresentations =
getSegmentationRepresentations(toolGroupId);
const representation = toolGroupSegmentationRepresentations.find(
(representation: ToolGroupSpecificRepresentation) =>
representation.segmentationRepresentationUID ===
segmentationRepresentationUID
);
if (!representation) {
return;
}
const { segmentsHidden } = representation;
return segmentsHidden.size === 0;
}
/**
* Set the visibility of the given segment indices to the given visibility. This
* is a helper to set the visibility of multiple segments at once and reduces
* the number of events fired.
*
* @param toolGroupId - The tool group id of the segmentation representation.
* @param segmentationRepresentationUID - The UID of the segmentation
* representation.
* @param segmentIndices - The indices of the segments to be hidden/shown.
* @param visibility - The visibility to set the segments to.
*
*/
function setSegmentsVisibility(
toolGroupId: string,
segmentationRepresentationUID: string,
segmentIndices: number[],
visibility: boolean
): void {
const segRepresentation =
SegmentationState.getSegmentationRepresentationByUID(
toolGroupId,
segmentationRepresentationUID
);
if (!segRepresentation) {
return;
}
segmentIndices.forEach((segmentIndex) => {
visibility
? segRepresentation.segmentsHidden.delete(segmentIndex)
: segRepresentation.segmentsHidden.add(segmentIndex);
});
triggerSegmentationRepresentationModified(
toolGroupId,
segmentationRepresentationUID
);
}
function setSegmentVisibility(
toolGroupId: string,
segmentationRepresentationUID: string,
segmentIndex: number,
visibility: boolean
): void {
const segRepresentation =
SegmentationState.getSegmentationRepresentationByUID(
toolGroupId,
segmentationRepresentationUID
);
if (!segRepresentation) {
return;
}
visibility
? segRepresentation.segmentsHidden.delete(segmentIndex)
: segRepresentation.segmentsHidden.add(segmentIndex);
triggerSegmentationRepresentationModified(
toolGroupId,
segmentationRepresentationUID
);
}
export {
setSegmentationVisibility,
getSegmentationVisibility,
setSegmentVisibility,
setSegmentsVisibility,
};
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