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import { useSystem, utils } from '@ohif/core';
import { useViewportGrid } from '@ohif/ui-next';
import {
getEnhancedDisplaySets,
sortByOverlayable,
DERIVED_OVERLAY_MODALITIES,
} from '../components/ViewportDataOverlaySettingMenu/utils';
const sortByPriority = (a, b) => {
if (utils.isLowPriorityModality(a.Modality)) {
return 1;
}
return -1;
};
/**
* Options for the useViewportDisplaySets hook
*/
export type UseViewportDisplaySetsOptions = {
/**
* Whether to include background display set
*/
includeBackground?: boolean;
/**
* Whether to include foreground display sets
*/
includeForeground?: boolean;
/**
* Whether to include overlay display sets
*/
includeOverlay?: boolean;
/**
* Whether to include potential overlay display sets
*/
includePotentialOverlay?: boolean;
/**
* Whether to include potential foreground display sets
*/
includePotentialForeground?: boolean;
/**
* Whether to include potential background display sets
*/
includePotentialBackground?: boolean;
};
/**
* Return type for useViewportDisplaySets
*/
export type ViewportDisplaySets = {
/**
* All display sets for the viewport
*/
allDisplaySets: AppTypes.DisplaySet[];
/**
* The viewport display sets for the viewport
*/
viewportDisplaySets: AppTypes.DisplaySet[];
/**
* The primary display set for the viewport (base image)
*/
backgroundDisplaySet?: AppTypes.DisplaySet;
/**
* Display sets currently shown with background (non-overlay layers)
*/
foregroundDisplaySets?: AppTypes.DisplaySet[];
/**
* Segmentation display sets currently applied as overlays
*/
overlayDisplaySets?: AppTypes.DisplaySet[];
/**
* Display sets that could be toggled on as overlays (derived modalities)
*/
potentialOverlayDisplaySets?: AppTypes.DisplaySet[];
/**
* Display sets that could be added as foreground layers
*/
potentialForegroundDisplaySets?: AppTypes.DisplaySet[];
/**
* Display sets that could replace the current background
*/
potentialBackgroundDisplaySets?: AppTypes.DisplaySet[];
};
/**
* Hook to provide display sets and overlay information for a viewport based on options.
*
* @param viewportId - The viewport ID to get display sets for
* @param options - Options to control which display sets to compute
* @returns Object containing requested display set collections based on options
*/
export function useViewportDisplaySets(
viewportId?: string,
options?: UseViewportDisplaySetsOptions
): ViewportDisplaySets {
const { servicesManager } = useSystem();
const { displaySetService, segmentationService } = servicesManager.services;
// Note: this is very important we should use the useViewportGrid hook here,
// since if the viewport displaySet is changed we should re-run this hook
// to get the latest displaySets
const [viewportGridState, viewportGridService] = useViewportGrid();
const viewportIdToUse = viewportId || viewportGridState.activeViewportId;
// Apply defaults - include everything if no options specified
const {
includeBackground = true,
includeForeground = true,
includeOverlay = true,
includePotentialOverlay = true,
includePotentialForeground = true,
includePotentialBackground = true,
} = options || {};
// Get all available display sets (only if needed)
const needsAllDisplaySets = includePotentialBackground;
const allDisplaySets = useMemo(
() => (needsAllDisplaySets ? displaySetService.getActiveDisplaySets() : []),
[displaySetService, needsAllDisplaySets]
);
// Get all available segmentations (only if needed)
const needsSegmentations = includeOverlay;
const [segmentationRepresentations, setSegmentationRepresentations] = useState(
needsSegmentations ? segmentationService.getSegmentationRepresentations(viewportIdToUse) : []
);
useEffect(() => {
setSegmentationRepresentations(
needsSegmentations ? segmentationService.getSegmentationRepresentations(viewportIdToUse) : []
);
const unsubscribeArr = needsSegmentations
? [
segmentationService.EVENTS.SEGMENTATION_REPRESENTATION_MODIFIED,
segmentationService.EVENTS.SEGMENTATION_REPRESENTATION_REMOVED,
].map(event =>
segmentationService.subscribe(event, () => {
setSegmentationRepresentations(
segmentationService.getSegmentationRepresentations(viewportIdToUse)
);
})
)
: [];
return () => {
unsubscribeArr.forEach(item => item.unsubscribe());
};
}, [segmentationService, viewportIdToUse, needsSegmentations]);
const overlayDisplaySets = useMemo(() => {
Iif (!includeOverlay) {
return [];
}
return segmentationRepresentations.map(repr => {
const displaySet = displaySetService.getDisplaySetByUID(repr.segmentationId);
return displaySet;
});
}, [includeOverlay, segmentationRepresentations, displaySetService]);
const overlayDisplaySetUIDs = useMemo(() => {
return overlayDisplaySets.map(ds => ds.displaySetInstanceUID);
}, [overlayDisplaySets]);
// Get enhanced display sets (only if needed)
const needsEnhancedDisplaySets =
includeBackground || includeForeground || includePotentialOverlay || includePotentialForeground;
const { viewportDisplaySets = [], enhancedDisplaySets = [] } = useMemo(() => {
Iif (!needsEnhancedDisplaySets) {
return { viewportDisplaySets: [], enhancedDisplaySets: [] };
}
return (
getEnhancedDisplaySets({
viewportId: viewportIdToUse,
services: { displaySetService, viewportGridService },
}) || { viewportDisplaySets: [], enhancedDisplaySets: [] }
);
}, [viewportIdToUse, displaySetService, viewportGridService, needsEnhancedDisplaySets]);
const backgroundDisplaySet = useMemo(
() =>
includeBackground && viewportDisplaySets.length > 0 ? viewportDisplaySets[0] : undefined,
[includeBackground, viewportDisplaySets]
);
const foregroundDisplaySets = useMemo(() => {
Iif (!includeForeground || !backgroundDisplaySet) {
return [];
}
return viewportDisplaySets.filter(
ds =>
!DERIVED_OVERLAY_MODALITIES.includes(ds.Modality) &&
ds.displaySetInstanceUID !== backgroundDisplaySet.displaySetInstanceUID
);
}, [includeForeground, viewportDisplaySets, backgroundDisplaySet]);
const foregroundDisplaySetUIDs = useMemo(
() => foregroundDisplaySets.map(ds => ds.displaySetInstanceUID),
[foregroundDisplaySets]
);
const potentialOverlayDisplaySets = useMemo(() => {
Iif (!includePotentialOverlay) {
return [];
}
return enhancedDisplaySets
.filter(
ds =>
DERIVED_OVERLAY_MODALITIES.includes(ds.Modality) &&
!overlayDisplaySetUIDs.includes(ds.displaySetInstanceUID) &&
ds.isOverlayable
)
.sort(sortByOverlayable);
}, [includePotentialOverlay, enhancedDisplaySets, overlayDisplaySetUIDs]);
const potentialForegroundDisplaySets = useMemo(() => {
Iif (!includePotentialForeground) {
return [];
}
return enhancedDisplaySets
.filter(
ds =>
!DERIVED_OVERLAY_MODALITIES.includes(ds.Modality) &&
!foregroundDisplaySetUIDs.includes(ds.displaySetInstanceUID) &&
ds.isOverlayableE
)
.sort(sortByPriority);
}, [includePotentialForeground, enhancedDisplaySets, foregroundDisplaySetUIDs]);
const potentialBackgroundDisplaySets = useMemo(() => {
Iif (!includePotentialBackground || !backgroundDisplaySet) {
return [];
}
return allDisplaySets
.filter(
ds =>
!DERIVED_OVERLAY_MODALITIES.includes(ds.Modality) &&
ds.displaySetInstanceUID !== backgroundDisplaySet.displaySetInstanceUID &&
!overlayDisplaySetUIDs.includes(ds.displaySetInstanceUID) &&
!foregroundDisplaySetUIDs.includes(ds.displaySetInstanceUID)E
)
.sort(sortByPriority);
}, [
includePotentialBackground,
allDisplaySets,
backgroundDisplaySet,
overlayDisplaySetUIDs,
foregroundDisplaySetUIDs,
]);
const result: ViewportDisplaySets = {
allDisplaySets: allDisplaySets || [],
viewportDisplaySets: viewportDisplaySets || [],
};
if (includeBackground) {
result.backgroundDisplaySet = backgroundDisplaySet;
}
if (includeForeground) {
result.foregroundDisplaySets = foregroundDisplaySets;
}
if (includeOverlay) {
result.overlayDisplaySets = overlayDisplaySets;
}
if (includePotentialOverlay) {
result.potentialOverlayDisplaySets = potentialOverlayDisplaySets;
}
if (includePotentialForeground) {
result.potentialForegroundDisplaySets = potentialForegroundDisplaySets;
}
if (includePotentialBackground) {
result.potentialBackgroundDisplaySets = potentialBackgroundDisplaySets;
}
return result;
}
|