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node_modules/wmf/README.md

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+# js-wmf
+
+Processor for Windows MetaFile (WMF) files in JS (for the browser and nodejs).
+
+
+## Installation
+
+With [npm](https://www.npmjs.org/package/wmf):
+
+```bash
+$ npm install wmf
+```
+
+In the browser:
+
+```html
+<script src="wmf.js"></script>
+```
+
+The browser exposes a variable `WMF`.
+
+
+## Usage
+
+The `data` argument is expected to be an `ArrayBuffer`, `Uint8Array` or `Buffer`
+
+- `WMF.image_size(data)` extracts the image offset and extents, returns an Array
+  `[width, height]` where both metrics are measured in pixels.
+
+- `WMF.draw_canvas(data, canvas)` parses the WMF and draws to a `Canvas`.
+
+### Notes
+
+- The library assumes the global `ImageData` is available.  For nodejs-powered
+  canvas implementations, a shim must be exposed as a global. Using the `canvas`
+  npm package:
+
+```js
+const { createImageData } = require("canvas");
+global.ImageData = createImageData;
+```
+
+- `OffscreenCanvas` in Chrome and some other Canvas implementations require
+  the dimensions in the constructor:
+
+```js
+const size = WMF.image_size(data);
+const canvas = new OffscreenCanvas(size[0], size[1]);
+```
+
+
+## Examples
+
+<details>
+  <summary><b>Browser Fetch into canvas</b> (click to show)</summary>
+
+```js
+// assume `canvas` is a DOM element
+(async() => {
+  const res = await fetch("url/for/image.wmf");
+  const ab = await res.arrayBuffer();
+  WMF.draw_canvas(ab, document.getElementById("canvas"));
+})();
+```
+
+</details>
+
+<details>
+  <summary><b>NodeJS (using `canvas` npm module)</b> (click to show)</summary>
+
+```js
+const { createCanvas, createImageData } = require("canvas");
+global.ImageData = createImageData;
+
+const size = WMF.image_size(data);
+const canvas = createCanvas(size[0], size[1]);
+WMF.draw_canvas(data, canvas);
+```
+
+</details>
+
+
+## License
+
+Please consult the attached LICENSE file for details.  All rights not explicitly
+granted by the Apache 2.0 License are reserved by the Original Author.
+
+
+## References
+
+ - `MS-WMF`: Windows Metafile Format
+