Recurse subdirectories not working well

[thany]

Recurse subdirectories only work for dropping files. It should work for adding files from within the program as well, by selecting a folder rather than a bunch of files.

More importantly, files are not saved recursively. When the input directory is D:\input and the output is D:\output, a file located at D:\input\path\to\file\filename.png is happily saved to D:\output\filename.png.

So it completely destroys the directory structure at the destination, so it's far more work to use this function than to process each directory nonrecursively one by one.