feat: crop png

This commit is contained in:
Ibrahima G. Coulibaly
2025-03-09 02:35:30 +00:00
parent 0a21aa07ab
commit 5e1aceccd1
4 changed files with 234 additions and 0 deletions

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import { expect, describe, it } from 'vitest';
// import { } from './service';
//
// describe('crop', () => {
//
// })

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import { Box } from '@mui/material';
import React, { useState } from 'react';
import * as Yup from 'yup';
import ToolFileInput from '@components/input/ToolFileInput';
import ToolFileResult from '@components/result/ToolFileResult';
import { GetGroupsType } from '@components/options/ToolOptions';
import TextFieldWithDesc from '@components/options/TextFieldWithDesc';
import ToolContent from '@components/ToolContent';
import { ToolComponentProps } from '@tools/defineTool';
import SimpleRadio from '@components/options/SimpleRadio';
const initialValues = {
xPosition: '0',
yPosition: '0',
cropWidth: '100',
cropHeight: '100',
cropShape: 'rectangular' as 'rectangular' | 'circular'
};
const validationSchema = Yup.object({
xPosition: Yup.number()
.min(0, 'X position must be positive')
.required('X position is required'),
yPosition: Yup.number()
.min(0, 'Y position must be positive')
.required('Y position is required'),
cropWidth: Yup.number()
.min(1, 'Width must be at least 1px')
.required('Width is required'),
cropHeight: Yup.number()
.min(1, 'Height must be at least 1px')
.required('Height is required')
});
export default function CropPng({ title }: ToolComponentProps) {
const [input, setInput] = useState<File | null>(null);
const [result, setResult] = useState<File | null>(null);
const compute = (optionsValues: typeof initialValues, input: any) => {
if (!input) return;
const { xPosition, yPosition, cropWidth, cropHeight, cropShape } =
optionsValues;
const x = parseInt(xPosition);
const y = parseInt(yPosition);
const width = parseInt(cropWidth);
const height = parseInt(cropHeight);
const isCircular = cropShape === 'circular';
const processImage = async (
file: File,
x: number,
y: number,
width: number,
height: number,
isCircular: boolean
) => {
// Create source canvas
const sourceCanvas = document.createElement('canvas');
const sourceCtx = sourceCanvas.getContext('2d');
if (sourceCtx == null) return;
// Create destination canvas
const destCanvas = document.createElement('canvas');
const destCtx = destCanvas.getContext('2d');
if (destCtx == null) return;
// Load image
const img = new Image();
img.src = URL.createObjectURL(file);
await img.decode();
// Set source canvas dimensions
sourceCanvas.width = img.width;
sourceCanvas.height = img.height;
// Draw original image on source canvas
sourceCtx.drawImage(img, 0, 0);
// Set destination canvas dimensions to crop size
destCanvas.width = width;
destCanvas.height = height;
if (isCircular) {
// For circular crop
destCtx.beginPath();
// Create a circle with center at half width/height and radius of half the smaller dimension
const radius = Math.min(width, height) / 2;
destCtx.arc(width / 2, height / 2, radius, 0, Math.PI * 2);
destCtx.closePath();
destCtx.clip();
// Draw the cropped portion centered in the circle
destCtx.drawImage(img, x, y, width, height, 0, 0, width, height);
} else {
// For rectangular crop, simply draw the specified region
destCtx.drawImage(img, x, y, width, height, 0, 0, width, height);
}
// Convert canvas to blob and create file
destCanvas.toBlob((blob) => {
if (blob) {
const newFile = new File([blob], file.name, {
type: 'image/png'
});
setResult(newFile);
}
}, 'image/png');
};
processImage(input, x, y, width, height, isCircular);
};
const getGroups: GetGroupsType<typeof initialValues> = ({
values,
updateField
}) => [
{
title: 'Crop Position and Size',
component: (
<Box>
<TextFieldWithDesc
value={values.xPosition}
onOwnChange={(val) => updateField('xPosition', val)}
description={'X position (in pixels)'}
inputProps={{
'data-testid': 'x-position-input',
type: 'number',
min: 0
}}
/>
<TextFieldWithDesc
value={values.yPosition}
onOwnChange={(val) => updateField('yPosition', val)}
description={'Y position (in pixels)'}
inputProps={{
'data-testid': 'y-position-input',
type: 'number',
min: 0
}}
/>
<TextFieldWithDesc
value={values.cropWidth}
onOwnChange={(val) => updateField('cropWidth', val)}
description={'Crop width (in pixels)'}
inputProps={{
'data-testid': 'crop-width-input',
type: 'number',
min: 1
}}
/>
<TextFieldWithDesc
value={values.cropHeight}
onOwnChange={(val) => updateField('cropHeight', val)}
description={'Crop height (in pixels)'}
inputProps={{
'data-testid': 'crop-height-input',
type: 'number',
min: 1
}}
/>
</Box>
)
},
{
title: 'Crop Shape',
component: (
<Box>
<SimpleRadio
onClick={() => updateField('cropShape', 'rectangular')}
checked={values.cropShape == 'rectangular'}
description={'Crop a rectangular fragment from a PNG.'}
title={'Rectangular Crop Shape'}
/>
<SimpleRadio
onClick={() => updateField('cropShape', 'circular')}
checked={values.cropShape == 'circular'}
description={'Crop a circular fragment from a PNG.'}
title={'Circular Crop Shape'}
/>
</Box>
)
}
];
return (
<ToolContent
title={title}
initialValues={initialValues}
getGroups={getGroups}
compute={compute}
input={input}
validationSchema={validationSchema}
inputComponent={
<ToolFileInput
value={input}
onChange={setInput}
accept={['image/png']}
title={'Input PNG'}
/>
}
resultComponent={
<ToolFileResult
title={'Cropped PNG'}
value={result}
extension={'png'}
/>
}
toolInfo={{
title: 'Crop PNG Image',
description:
'This tool allows you to crop a PNG image by specifying the position, size, and shape of the crop area. You can choose between rectangular or circular cropping.'
}}
/>
);
}

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import { defineTool } from '@tools/defineTool';
import { lazy } from 'react';
export const tool = defineTool('png', {
name: 'Crop',
path: 'crop',
icon: 'mdi:crop', // Iconify icon as a string
description: 'A tool to crop images with precision and ease.',
shortDescription: 'Crop images quickly.',
keywords: ['crop', 'image', 'edit', 'resize', 'trim'],
component: lazy(() => import('./index'))
});