新增图片操作分类，支持调整大小、旋转、添加水印、裁剪、格式转换、图片信息、png2ico

plugin/lib/quickcomposer/image/png2icon.js

@@ -0,0 +1,36 @@
+const png2icons = require("png2icons");
+const fs = require("fs");
+const path = require("path");
+
+const pngToIcon = (input, outputDir, type = "ico") => {
+  if (input instanceof Array) {
+    input.forEach((input) => {
+      pngToIcon(input, outputDir, type);
+    });
+    return;
+  }
+  let icon, outputFile, basename;
+  console.log(input);
+  if (input.startsWith("data:image/png;base64,")) {
+    input = Buffer.from(input.split(",")[1], "base64");
+    basename = new Date().getTime().toString();
+  } else {
+    basename = path.basename(input, ".png");
+    input = fs.readFileSync(input);
+  }
+  if (type == "ico") {
+    icon = png2icons.createICO(input, png2icons.BICUBIC, 0, false);
+    outputFile = path.join(outputDir, basename + ".ico");
+  } else {
+    icon = png2icons.createICNS(input, png2icons.BILINEAR, 0);
+    outputFile = path.join(outputDir, basename + ".icns");
+  }
+  if (!icon) return;
+  fs.writeFile(outputFile, icon, (err) => {
+    if (err) throw err;
+  });
+};
+
+module.exports = {
+  pngToIcon,
+};