PainterController set background by picture from gallery

[thaibom95]

Hi. Thanks for your library. It's really good.
Can you add more property like background by picture from gallery? It will perfect.
Thanks.

[Joao-b4]

I need this option, I can't find any library that will allow me to do this

[knaeckeKami]

this can easily be achieved by passing a child widget to to customPainter and using a foreground painter.
see https://gist.github.com/knaeckeKami/64f240c0aaf253596bd33f5fa0c4c5f2

I hacked this together for a quick proof of concept. It enables drawing on an image from a file. I also do some matrix-magic to transform the drawn path to fit on the original dimensions of the image, in case the image has a higher resolution than the phone screen.