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electron/scripts/generate-icons.mjs

@@ -0,0 +1,46 @@
+import fs from 'fs'
+import path from 'path'
+import { fileURLToPath } from 'url'
+import pngToIco from 'png-to-ico'
+import { Resvg } from '@resvg/resvg-js'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
+const root = path.resolve(__dirname, '..')
+const buildDir = path.join(root, 'build')
+const srcSvg = path.join(buildDir, 'app-icon.svg')
+const outPng = path.join(buildDir, 'icon.png')
+const outIco = path.join(buildDir, 'icon.ico')
+
+if (!fs.existsSync(srcSvg)) {
+  console.error(`[gen:icons] missing ${srcSvg}`)
+  process.exit(1)
+}
+
+fs.mkdirSync(buildDir, { recursive: true })
+
+const svgBuf = fs.readFileSync(srcSvg)
+const svg = svgBuf.toString('utf8')
+
+function renderSvgToPngBuffer(svgInputUtf8, size) {
+  const resvg = new Resvg(svgInputUtf8, {
+    fitTo: { mode: 'width', value: size },
+    background: 'rgba(0,0,0,0)',
+  })
+  const img = resvg.render()
+  return img.asPng()
+}
+
+// 生成一张 256x256 的 PNG（也可供托盘/文档等使用）
+fs.writeFileSync(outPng, renderSvgToPngBuffer(svg, 256))
+
+// Windows .ico：包含多尺寸位图更稳（任务栏/快捷方式/高 DPI）
+const sizes = [16, 24, 32, 48, 64, 128, 256]
+const pngBuffers = sizes.map((s) => renderSvgToPngBuffer(svg, s))
+
+const ico = await pngToIco(pngBuffers)
+fs.writeFileSync(outIco, ico)
+
+console.log(`[gen:icons] wrote ${path.relative(root, outIco)} and ${path.relative(root, outPng)}`)
+