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Feat: Translate comments of file-util.ts to English #3749 (#3757)

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### What problem does this PR solve?

Feat: Translate comments of file-util.ts to English #3749

### Type of change


- [x] New Feature (non-breaking change which adds functionality)
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balibabu 2024-11-29 18:01:14 +08:00 committed by GitHub
parent ea8a59d0b0
commit fadbe23bfe
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1 changed files with 13 additions and 13 deletions
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26
web/src/utils/file-util.ts
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@ -5,20 +5,20 @@ export const transformFile2Base64 = (val: any): Promise<any> => {
const reader = new FileReader(); const reader = new FileReader();
reader.readAsDataURL(val); reader.readAsDataURL(val);
reader.onload = (): void => { reader.onload = (): void => {
// 创建图片对象 // Create image object
const img = new Image(); const img = new Image();
img.src = reader.result as string; img.src = reader.result as string;
img.onload = () => { img.onload = () => {
// 创建canvas // Create canvas
const canvas = document.createElement('canvas'); const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d'); const ctx = canvas.getContext('2d');
// 计算压缩后的尺寸,最大宽高设为800px // Calculate compressed dimensions, set max width/height to 800px
let width = img.width; let width = img.width;
let height = img.height; let height = img.height;
const maxSize = 100; const maxSize = 100;
if (width > height && width > maxSize) { if (width > height && width > maxSize) {
height = (height * maxSize) / width; height = (height * maxSize) / width;
width = maxSize; width = maxSize;
@ -26,19 +26,19 @@ export const transformFile2Base64 = (val: any): Promise<any> => {
width = (width * maxSize) / height; width = (width * maxSize) / height;
height = maxSize; height = maxSize;
} }
// 设置canvas尺寸 // Set canvas dimensions
canvas.width = width; canvas.width = width;
canvas.height = height; canvas.height = height;
// 绘制图片 // Draw image
ctx?.drawImage(img, 0, 0, width, height); ctx?.drawImage(img, 0, 0, width, height);
// 转换为base64,保持原始格式和透明度 // Convert to base64, maintain original format and transparency
const compressedBase64 = canvas.toDataURL('image/png'); const compressedBase64 = canvas.toDataURL('image/png');
resolve(compressedBase64); resolve(compressedBase64);
}; };
img.onerror = reject; img.onerror = reject;
}; };
reader.onerror = reject; reader.onerror = reject;