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* fix default displayset options * add viewport overlay * apply review comments
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extensions/cornerstone-3d/src/Viewport/CornerstoneOverlay.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,208 @@ | ||
| import React, { useCallback, useEffect, useState } from 'react'; | ||
| import PropTypes from 'prop-types'; | ||
| import { metaData, Enums, utilities } from '@cornerstonejs/core'; | ||
| import { ViewportOverlay } from '@ohif/ui'; | ||
|
|
||
| import Cornerstone3DViewportService from '../services/ViewportService/Cornerstone3DViewportService'; | ||
|
|
||
| function CornerstoneOverlay({ | ||
| viewportData, | ||
| imageIndex, | ||
| viewportIndex, | ||
| ToolBarService, | ||
| }) { | ||
| const [voi, setVOI] = useState({ windowCenter: null, windowWidth: null }); | ||
| const [scale, setScale] = useState(1); | ||
| const [activeTools, setActiveTools] = useState([]); | ||
|
|
||
| const getCornerstoneViewport = useCallback( | ||
| viewportIndex => { | ||
| const viewportInfo = Cornerstone3DViewportService.getViewportInfoByIndex( | ||
| viewportIndex | ||
| ); | ||
|
|
||
| if (!viewportInfo) { | ||
| return; | ||
| } | ||
|
|
||
| const viewportId = viewportInfo.getViewportId(); | ||
| const viewport = Cornerstone3DViewportService.getCornerstone3DViewport( | ||
| viewportId | ||
| ); | ||
|
|
||
| return viewport; | ||
| }, | ||
| [viewportIndex, viewportData] | ||
| ); | ||
|
|
||
| /** | ||
| * Initial toolbar state | ||
| */ | ||
| useEffect(() => { | ||
| setActiveTools(ToolBarService.getActiveTools()); | ||
| }, []); | ||
|
|
||
| /** | ||
| * Updating the VOI when the viewport changes its voi | ||
| */ | ||
| useEffect(() => { | ||
| const viewport = getCornerstoneViewport(viewportIndex); | ||
|
|
||
| if (!viewport) { | ||
| return; | ||
| } | ||
|
|
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| const { element } = viewport; | ||
|
|
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| const updateVOI = eventDetail => { | ||
| const { range } = eventDetail.detail; | ||
|
|
||
| if (!range) { | ||
| return; | ||
| } | ||
|
|
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| const { lower, upper } = range; | ||
| const { windowWidth, windowCenter } = utilities.windowLevel.toWindowLevel( | ||
| lower, | ||
| upper | ||
| ); | ||
|
|
||
| setVOI({ windowCenter, windowWidth }); | ||
| }; | ||
|
|
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| element.addEventListener(Enums.Events.VOI_MODIFIED, updateVOI); | ||
|
|
||
| return () => { | ||
| element.removeEventListener(Enums.Events.VOI_MODIFIED, updateVOI); | ||
| }; | ||
| }, [viewportIndex, viewportData]); | ||
|
|
||
| /** | ||
| * Updating the scale when the viewport changes its zoom | ||
| */ | ||
| useEffect(() => { | ||
| const viewport = getCornerstoneViewport(viewportIndex); | ||
| if (!viewport) { | ||
| return; | ||
| } | ||
|
|
||
| const { element } = viewport; | ||
|
|
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| const updateScale = eventDetail => { | ||
| const { previousCamera, camera } = eventDetail.detail; | ||
|
|
||
| if (previousCamera.parallelScale !== camera.parallelScale) { | ||
| const viewport = getCornerstoneViewport(viewportIndex); | ||
|
|
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| const { dimensions, spacing } = viewport.getImageData(); | ||
|
|
||
| // Todo: handle for the volume viewports with directions | ||
| const scale = (dimensions[0] * spacing[0]) / camera.parallelScale; | ||
| setScale(scale); | ||
| } | ||
| }; | ||
|
|
||
| element.addEventListener(Enums.Events.CAMERA_MODIFIED, updateScale); | ||
|
|
||
| return () => { | ||
| element.removeEventListener(Enums.Events.CAMERA_MODIFIED, updateScale); | ||
| }; | ||
| }, [viewportIndex, viewportData]); | ||
|
|
||
| /** | ||
| * Updating the active tools when the toolbar changes | ||
| */ | ||
| // Todo: this should act on the toolGroups instead of the toolbar state | ||
| useEffect(() => { | ||
| const { unsubscribe } = ToolBarService.subscribe( | ||
| ToolBarService.EVENTS.TOOL_BAR_STATE_MODIFIED, | ||
| () => { | ||
| setActiveTools(ToolBarService.getActiveTools()); | ||
| } | ||
| ); | ||
|
|
||
| return () => { | ||
| unsubscribe(); | ||
| }; | ||
| }, [ToolBarService]); | ||
|
|
||
| const getTopLeftContent = useCallback(() => { | ||
| const { windowWidth, windowCenter } = voi; | ||
|
|
||
| if (activeTools.includes('WindowLevel')) { | ||
| if (typeof windowCenter !== 'number' || typeof windowWidth !== 'number') { | ||
| return null; | ||
| } | ||
|
|
||
| return ( | ||
| <div className="flex flex-row"> | ||
| <span className="mr-1">W:</span> | ||
| <span className="ml-1 mr-2 font-light">{windowWidth.toFixed(0)}</span> | ||
| <span className="mr-1">L:</span> | ||
| <span className="ml-1 font-light">{windowCenter.toFixed(0)}</span> | ||
| </div> | ||
| ); | ||
| } | ||
|
|
||
| if (activeTools.includes('Zoom')) { | ||
| return ( | ||
| <div className="flex flex-row"> | ||
| <span className="mr-1">Zoom:</span> | ||
| <span className="font-light">{scale.toFixed(2)}x</span> | ||
| </div> | ||
| ); | ||
| } | ||
|
|
||
| return null; | ||
| }, [voi, scale, activeTools]); | ||
|
|
||
| const getTopRightContent = useCallback(() => { | ||
| const { stack } = viewportData; | ||
| const imageId = stack.imageIds[imageIndex]; | ||
|
|
||
| const generalImageModule = | ||
| metaData.get('generalImageModule', imageId) || {}; | ||
| const { instanceNumber } = generalImageModule; | ||
|
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| const stackSize = stack.imageIds ? stack.imageIds.length : 0; | ||
|
|
||
| return ( | ||
| <div className="flex flex-row"> | ||
| <span className="mr-1">I:</span> | ||
| <span className="font-light"> | ||
| {instanceNumber !== undefined | ||
| ? `${instanceNumber} (${imageIndex}/${stackSize})` | ||
| : `${imageIndex}/${stackSize}`} | ||
| </span> | ||
| </div> | ||
| ); | ||
| }, [imageIndex, viewportData]); | ||
|
|
||
| if (!viewportData) { | ||
| return null; | ||
| } | ||
|
|
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| // Todo: fix this for volume later | ||
| const { stack } = viewportData; | ||
|
|
||
| if (!stack || stack.imageIds.length === 0) { | ||
| throw new Error( | ||
| 'ViewportOverlay: only viewports with imageIds is supported at this time' | ||
| ); | ||
| } | ||
|
|
||
| return ( | ||
| <ViewportOverlay | ||
| topLeft={getTopLeftContent()} | ||
| topRight={getTopRightContent()} | ||
| /> | ||
| ); | ||
| } | ||
|
|
||
| CornerstoneOverlay.propTypes = { | ||
| viewportData: PropTypes.object, | ||
| imageIndex: PropTypes.number, | ||
| viewportIndex: PropTypes.number, | ||
| }; | ||
|
|
||
| export default CornerstoneOverlay; |
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