initial migration to TS
This commit is contained in:
90
frontend/src/CropBoxOverlay.tsx
Normal file
90
frontend/src/CropBoxOverlay.tsx
Normal file
@@ -0,0 +1,90 @@
|
||||
import React, { useRef, useState, useCallback } from 'react';
|
||||
|
||||
export const CAPTURE_SELECTOR = '.crop-overlay';
|
||||
|
||||
export default function CropBoxOverlay({
|
||||
image, x1, y1, x2, y2,
|
||||
aLocked, bLocked,
|
||||
nodeId, onWidgetChange,
|
||||
}) {
|
||||
const containerRef = useRef(null);
|
||||
const [dragging, setDragging] = useState(null);
|
||||
|
||||
const getCoords = useCallback((e) => {
|
||||
const rect = containerRef.current.getBoundingClientRect();
|
||||
return {
|
||||
fx: Math.max(0, Math.min(1, (e.clientX - rect.left) / rect.width)),
|
||||
fy: Math.max(0, Math.min(1, (e.clientY - rect.top) / rect.height)),
|
||||
};
|
||||
}, []);
|
||||
|
||||
const onPointerDown = useCallback((point) => (e) => {
|
||||
if (point === 'p1' && aLocked) return;
|
||||
if (point === 'p2' && bLocked) return;
|
||||
e.stopPropagation();
|
||||
e.preventDefault();
|
||||
e.target.setPointerCapture(e.pointerId);
|
||||
setDragging(point);
|
||||
}, [aLocked, bLocked]);
|
||||
|
||||
const onPointerMove = useCallback((e) => {
|
||||
if (!dragging || !containerRef.current) return;
|
||||
const { fx, fy } = getCoords(e);
|
||||
const vx = parseFloat(fx.toFixed(3));
|
||||
const vy = parseFloat(fy.toFixed(3));
|
||||
if (dragging === 'p1') {
|
||||
onWidgetChange(nodeId, 'x1', vx);
|
||||
onWidgetChange(nodeId, 'y1', vy);
|
||||
} else {
|
||||
onWidgetChange(nodeId, 'x2', vx);
|
||||
onWidgetChange(nodeId, 'y2', vy);
|
||||
}
|
||||
}, [dragging, getCoords, nodeId, onWidgetChange]);
|
||||
|
||||
const onPointerUp = useCallback(() => {
|
||||
setDragging(null);
|
||||
}, []);
|
||||
|
||||
const left = Math.min(x1, x2);
|
||||
const right = Math.max(x1, x2);
|
||||
const top = Math.min(y1, y2);
|
||||
const bottom = Math.max(y1, y2);
|
||||
|
||||
return (
|
||||
<div
|
||||
ref={containerRef}
|
||||
className="nodrag nowheel crop-overlay"
|
||||
onPointerMove={onPointerMove}
|
||||
onPointerUp={onPointerUp}
|
||||
onLostPointerCapture={onPointerUp}
|
||||
>
|
||||
<img src={image} alt="crop source" draggable={false} className="crop-image" />
|
||||
|
||||
<div className="crop-dim" style={{ left: 0, top: 0, width: '100%', height: `${top * 100}%` }} />
|
||||
<div className="crop-dim" style={{ left: 0, top: `${top * 100}%`, width: `${left * 100}%`, height: `${(bottom - top) * 100}%` }} />
|
||||
<div className="crop-dim" style={{ left: `${right * 100}%`, top: `${top * 100}%`, width: `${(1 - right) * 100}%`, height: `${(bottom - top) * 100}%` }} />
|
||||
<div className="crop-dim" style={{ left: 0, top: `${bottom * 100}%`, width: '100%', height: `${(1 - bottom) * 100}%` }} />
|
||||
|
||||
<div
|
||||
className="crop-rect"
|
||||
style={{
|
||||
left: `${left * 100}%`,
|
||||
top: `${top * 100}%`,
|
||||
width: `${(right - left) * 100}%`,
|
||||
height: `${(bottom - top) * 100}%`,
|
||||
}}
|
||||
/>
|
||||
|
||||
<div
|
||||
className={`crop-marker ${aLocked ? 'crop-marker-locked' : ''}`}
|
||||
style={{ left: `${x1 * 100}%`, top: `${y1 * 100}%` }}
|
||||
onPointerDown={onPointerDown('p1')}
|
||||
/>
|
||||
<div
|
||||
className={`crop-marker ${bLocked ? 'crop-marker-locked' : ''}`}
|
||||
style={{ left: `${x2 * 100}%`, top: `${y2 * 100}%` }}
|
||||
onPointerDown={onPointerDown('p2')}
|
||||
/>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
Reference in New Issue
Block a user