Update qrcode

Author: zxdong262

bin/qr-code.cut.js

@@ -0,0 +1,93 @@
+#!/usr/bin/env node
+
+import fs from 'fs'
+import path from 'path'
+import { fileURLToPath } from 'url'
+
+/**
+ * Crop QR code image - cut 340px from top, 230px from bottom, 100px from left, 100px from right
+ * Uses pure Node.js with Canvas API for image processing
+ */
+
+import { createCanvas, loadImage } from 'canvas'
+
+// Get __dirname equivalent in ES modules
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
+async function cropImage () {
+  try {
+    const inputPath = path.join(__dirname, '../src/static/electerm-wechat-group-qr.jpg')
+    const outputPath = path.join(__dirname, '../src/static/electerm-wechat-group-qr.jpg')
+
+    // Check if input file exists
+    if (!fs.existsSync(inputPath)) {
+      console.error('Input file does not exist:', inputPath)
+      process.exit(1)
+    }
+
+    console.log('Loading image:', inputPath)
+
+    // Load the image
+    const image = await loadImage(inputPath)
+    const originalWidth = image.width
+    const originalHeight = image.height
+
+    console.log(`Original dimensions: ${originalWidth}x${originalHeight}`)
+
+    // Calculate new dimensions
+    const cropTop = 340
+    const cropBottom = 230
+    const cropLeft = 120
+    const cropRight = 120
+    const newWidth = originalWidth - cropLeft - cropRight
+    const newHeight = originalHeight - cropTop - cropBottom
+
+    if (newHeight <= 0 || newWidth <= 0) {
+      console.error('Error: Cropping dimensions would result in zero or negative dimensions')
+      console.error(`Original dimensions: ${originalWidth}x${originalHeight}`)
+      console.error(`Crop values - top: ${cropTop}, bottom: ${cropBottom}, left: ${cropLeft}, right: ${cropRight}`)
+      process.exit(1)
+    }
+
+    console.log(`New dimensions: ${newWidth}x${newHeight}`)
+    console.log(`Cropping: ${cropTop}px from top, ${cropBottom}px from bottom, ${cropLeft}px from left, ${cropRight}px from right`)
+
+    // Create canvas with new dimensions
+    const canvas = createCanvas(newWidth, newHeight)
+    const ctx = canvas.getContext('2d')
+
+    // Draw the cropped portion of the image
+    ctx.drawImage(
+      image,
+      cropLeft, cropTop, // Source x, y (start from cropLeft pixels right and cropTop pixels down)
+      newWidth, newHeight, // Source width, height
+      0, 0, // Destination x, y
+      newWidth, newHeight // Destination width, height
+    )
+
+    // Save the cropped image
+    const buffer = canvas.toBuffer('image/jpeg', { quality: 0.9 })
+    fs.writeFileSync(outputPath, buffer)
+
+    console.log('Successfully cropped image saved to:', outputPath)
+    console.log(`Final dimensions: ${newWidth}x${newHeight}`)
+  } catch (error) {
+    console.error('Error processing image:', error)
+    process.exit(1)
+  }
+}
+
+// Check if canvas module is available
+try {
+  await import('canvas')
+} catch (error) {
+  console.error('Canvas module not found. Please install it with:')
+  console.error('npm install canvas')
+  console.error('\nNote: Canvas requires some system dependencies.')
+  console.error('On macOS: brew install pkg-config cairo pango libpng jpeg giflib librsvg')
+  process.exit(1)
+}
+
+// Run the crop function
+cropImage()