问题描述
我正在使用 grommet,我创建了两个 FileInput,然后从图像中生成了一个新图像。我的问题是:有没有办法调用我从按钮中的 FileInput 获得的图像?如果是,如何?感谢您的回答。
function App() {
function merge(pfpImage,overlayImage) {
const pfpDimensions = sizeOf(pfpImage);
const overlayDimensions = sizeOf(overlayImage);
if (pfpDimensions == overlayDimensions) {
return mergeImages([pfpImage,overlayImage]);
} else {
window.alert("Make sure the images have the same dimensions.");
}
}
var mergedImage;
return (
<grommet theme={theme}>
<Header background="neutral-3" pad="medium" height="xsmall">
<Anchor label="Social Ribbon" icon={<Image className="logoImage" a11yTitle="Social Ribbon logo" src={logo} />} />
</Header>
<Main direction="column" pad="medium" gap="medium">
<Box direction="row" gap="large">
<Box direction="column" gap="medium">
<Box direction="row" gap="small">
<Text>Profile Picture: </Text>
<FileInput
name="pfp"
multiple={false}
onChange={event => {
const fileList = event.target.files;
for (let i = 0; i < fileList.length; i += 1) {
const pfpFile = fileList[i];
}
}}
/>
</Box>
<Box direction="row" gap="small">
<Text>Overlay: </Text>
<FileInput
name="overlay"
multiple={false}
onChange={event => {
const fileList = event.target.files;
for (let i = 0; i < fileList.length; i += 1) {
const overlayFile = fileList[i];
}
}}
/>
</Box>
</Box>
<Box>
<Image src={mergedImage} />
</Box>
</Box>
<Button primary size="small" label="Put overlay" onClick={mergedImage = merge(pfpFile,overlayFile)} />
</Main>
</grommet>
)
}
解决方法
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