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[WIP] Add logo to svg #32

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[WIP] Add logo to svg #32

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88d0140
Enable to add img to svg
Bunlong Jan 15, 2023
b9563fa
Update supports
Bunlong Feb 27, 2023
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30 changes: 27 additions & 3 deletions src/useQRCode.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -127,19 +127,43 @@ function useSVGComponent() {
const SVGComponent = <T extends HTMLDivElement>({
text,
options,
logo,
}: IQRCode) => {
const inputRef = React.useRef<T>(null);

React.useEffect(() => {
QRCode.toString(text, options, function (error: Error, svg: string) {
if (error) {
throw error;
}
let _svg = '';
let x = 0;
let y = 0;
if (logo) {
const logoWidth = logo?.options?.width || 30;
if (logo?.options?.x && logo?.options?.y) {
x = logo?.options?.x;
y = logo?.options?.y;
} else if (!logo?.options?.x || !logo?.options?.y) {
// let margin = options?.margin;
// margin = !margin ? (margin === 0 ? 0 : 32) : margin * 8;
// const width = options?.width || 116 + margin;
// const center = (width - logoWidth) / 2;
}
const image = `<image xlink:href=${logo?.src} width="${logoWidth}" height=${logoWidth} x=${x} y=${y} preserveAspectRatio="none" />`;
const position = svg.indexOf('</svg>');
_svg = [
svg.slice(0, position),
image,
svg.slice(position),
].join('');
} else {
_svg = svg;
}
if (inputRef.current instanceof HTMLDivElement) {
inputRef.current.innerHTML = svg;
inputRef.current.innerHTML = _svg;
}
});
}, [text, options]);
}, [text, options, logo]);

return <div ref={inputRef} />;
};
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1 change: 1 addition & 0 deletions supports/create-next-app/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@
},
"dependencies": {
"next": "12.3.1",
"next-qrcode": "file:../..",
"react": "18.2.0",
"react-dom": "18.2.0"
},
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14 changes: 9 additions & 5 deletions supports/create-next-app/pages/index.tsx
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Expand Up @@ -47,17 +47,21 @@ const Home: NextPage = () => {
<SVG
text={'https://github.com/bunlong/next-qrcode'}
options={{
type: 'image/jpeg',
quality: 0.3,
level: 'M',
margin: 3,
scale: 4,
margin: 5,
width: 200,
color: {
dark: '#010599FF',
light: '#FFBF60FF',
},
}}
logo={{
src: 'https://cdn-icons-png.flaticon.com/512/124/124010.png',
options: {
width: 5,
x: 0,
y: 0,
}
}}
/>
</>
)
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