division by zero bug

Hi,

Its almost a perfect plugin.. except that when an image is defined without a specified height (e.g. add_image_size( ‘content_half’, 390, 0, true); ) the crop editor throws a load of error because of the division by zero.

Lines 131, 136, 140, and 152 of ManualImageCropEditorWindow.php give ‘Warning: Division by zero’

Any chance of a patch for this? Specifying a height or width as zero is standard wordpress default functionality as spec’d in the codex.

https://www.ads-software.com/plugins/manual-image-crop/