Spike: Crop image to a rounded rectangle

[niranjan-uma-shankar]

This extends the PPTXGenJS library to support rounded rectangle cropping of an image. This is used to crop a Chronicle card's background image to the same dimensions of a Chronicle card widget.

PPTXGenJS doesn't provide a straightforward way to overlay a background image on a rounded rectangle (a rect with all edges having a border radius). So, this approach directly crops the background image to have rounded corners.

Steps

1. Checkout branch
2. npm install
3. To compile the library source changes, run:

npm run build && cp src/bld/pptxgen.cjs.js dist/pptxgen.cjs.js && cp src/bld/pptxgen.es.js dist/pptxgen.es.js

4. Run node add_image_with_rounding.js . You should now see a new Image_With_Rounding.pptx in the project folder.