Created
January 15, 2024 12:54
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It's a react component of my project
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import React, { useEffect, useRef, useState } from "react"; | |
import { Rect, Circle } from "react-konva"; | |
const Rectangle = ({ width, height, x, y, ...props }) => { | |
const rect = useRef(); | |
const [cords, setCords] = useState({ | |
topLeft: { x: x, y: y }, | |
topRight: { x: x + width, y: y }, | |
bottomLeft: { x: x, y: y + height }, | |
bottomRight: { x: x + width, y: y + height }, | |
}); | |
const updateRect = (e) => { | |
const target = e.currentTarget.getClientRect(); | |
setCords(pos => ({ | |
topLeft: { x: target.x, y: target.y }, | |
topRight: { x: target.x + target.width, y: target.y }, | |
bottomLeft: { x: target.x, y: target.y + target.height }, | |
bottomRight: { | |
x: target.x + target.width, | |
y: target.y + target.height, | |
}, | |
})); | |
}; | |
const onAnchorMouseEnter = (e) => { | |
const target = e.currentTarget; | |
target.stroke("red"); | |
}; | |
const onAnchorMouseLeave = (e) => { | |
const target = e.currentTarget; | |
target.stroke("gray"); | |
}; | |
return ( | |
<> | |
<Rect | |
draggable | |
x={cords.topLeft.x} | |
y={cords.topLeft.y} | |
width={Math.abs(cords.topLeft.x - cords.topRight.x)} | |
height={Math.abs(cords.topLeft.y - cords.bottomLeft.y)} | |
{...props} | |
ref={rect} | |
onDragMove={updateRect} | |
/> | |
<> | |
<Circle | |
id={"1"} | |
draggable | |
name="settings" | |
x={cords.topLeft.x} | |
y={cords.topLeft.y} | |
radius={8} | |
strokeWidth={2} | |
fill="gray" | |
onMouseEnter={onAnchorMouseEnter} | |
onMouseLeave={onAnchorMouseLeave} | |
onDragMove={(e) => { | |
const posRect = e.target.getClientRect() | |
setCords(pos => ({ | |
topLeft: { x: posRect.x, y: posRect.y }, | |
topRight: { x: pos.topRight.x, y: posRect.y }, | |
bottomLeft: { x: posRect.x, y: pos.bottomLeft.y }, | |
bottomRight: { x: pos.bottomRight.x, y: pos.bottomRight.y}, | |
})); | |
}} | |
/> | |
<Circle | |
id={"2"} | |
draggable | |
name="settings" | |
x={cords.topRight.x} | |
y={cords.topRight.y} | |
radius={8} | |
strokeWidth={2} | |
fill="gray" | |
stroke={"gray"} | |
onMouseEnter={onAnchorMouseEnter} | |
onMouseLeave={onAnchorMouseLeave} | |
onDragMove={(e) => { | |
const posRect = e.target.getClientRect() | |
setCords(pos => ({ | |
topLeft: { x: pos.topLeft.x, y: posRect.y }, | |
topRight: { x: posRect.x, y: posRect.y }, | |
bottomLeft: { x: pos.bottomLeft.x, y: pos.bottomLeft.y }, | |
bottomRight: { x: posRect.x, y: pos.bottomRight.y }, | |
})); | |
}} | |
/> | |
<Circle | |
id={"3"} | |
draggable | |
name="settings" | |
x={cords.bottomLeft.x} | |
y={cords.bottomLeft.y} | |
radius={8} | |
strokeWidth={2} | |
fill="gray" | |
onMouseEnter={onAnchorMouseEnter} | |
onMouseLeave={onAnchorMouseLeave} | |
onDragMove={(e) => { | |
const posRect = e.target.getClientRect() | |
setCords(pos => ({ | |
topLeft: { x: posRect.x, y: pos.topLeft.y }, | |
topRight: { x: pos.topRight.x, y: pos.topRight.y }, | |
bottomLeft: { x: posRect.x, y: posRect.y }, | |
bottomRight: { x: pos.bottomRight.x, y: posRect.y }, | |
})); | |
}} | |
/> | |
<Circle | |
id={"4"} | |
draggable | |
name="settings" | |
x={cords.bottomRight.x} | |
y={cords.bottomRight.y} | |
radius={8} | |
strokeWidth={2} | |
fill="gray" | |
onMouseEnter={onAnchorMouseEnter} | |
onMouseLeave={onAnchorMouseLeave} | |
onDragMove={(e) => { | |
const posRect = e.target.getClientRect() | |
setCords(pos => ({ | |
topLeft: {x: pos.topLeft.x, y: pos.topLeft.y}, | |
topRight: { x: posRect.x, y: pos.topRight.y }, | |
bottomLeft: { x: pos.bottomLeft.x, y: posRect.y }, | |
bottomRight: { x: posRect.x, y: posRect.y }, | |
})); | |
}} | |
/> | |
</> | |
</> | |
); | |
}; | |
export default Rectangle; |
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