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ohif-viewer/extensions/cornerstone/src/components/SegmentationUtilityButton.tsx
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TypeScript

import React, { useCallback } from 'react';
import { cn, ToolButton } from '@ohif/ui-next';
import { useUIStateStore } from '@ohif/extension-default';
interface SegmentationUtilityButtonProps {
className?: string;
isActive?: boolean;
id: string;
}
/**
* A button that represents a segmentation utility.
* It is implicitly the PopoverTrigger for the options Popover panel that is
* opened in the PanelSegmentation component. It in essence is the PopoverTrigger
* because typically this button has the associated options to display in the Popover.
* Furthermore it also typically has a command for toggling the activeSegmentationUtility
* value in the UIStateStore that triggers the fetching of its options.
* @param props - The props for the button.
* @param props.className - The class name for the button.
* @param props.isActive - Whether the button is active
* @param props.id - The id of the button.
*/
function SegmentationUtilityButton(props: SegmentationUtilityButtonProps) {
const { className, isActive, id } = props;
const activeSegmentationUtility = useUIStateStore(
store => store.uiState.activeSegmentationUtility
);
const toolButtonClassName = cn(
'w-7 h-7 text-primary hover:text-primary hover:!bg-primary/30',
className,
isActive && 'bg-primary/30'
);
const handleMouseDownCapture = useCallback(
event => {
if (activeSegmentationUtility === id) {
// If this active button is clicked, prevent the default Popover
// behaviour of closing the Popover on a pointer/mouse down.
// Not doing this will cause the Popover to close and then reopen again.
// Why? Because propagating this event will cause PanelSegmentation to
// close the Popover by clearing the activeSegmentationUtility. Then
// this button will set the activeSegmentationUtility again and the
// Popover will reopen.
event.preventDefault();
event.stopPropagation();
}
},
[activeSegmentationUtility, id]
);
return (
<div onPointerDownCapture={handleMouseDownCapture}>
<ToolButton
{...props}
className={toolButtonClassName}
/>
</div>
);
}
export default SegmentationUtilityButton;