Mutable `Image` Widget

[Aidan-McNay]

(Feature Request, not critical)

An issue I've come upon several times is trying to update an Image Widget, similar to how you can change the styles/text of other widgets. The current workaround is to have it as a Resident layout and change the room to a new Resident with a new widget, but it's kinda clunky. I'm wondering whether there's a way to update the SDL texture associated with the image instead? Something like

val update_image : Bogue.Image.t -> Bogue.Image.t -> unit

where update source target would mutate target to have the same texture (and therefore image) as source

Happy to take a stab at it (although currently in uni, may be a while), but wanted to get a rough sense of "is this feasible" from someone who might know more :)

[sanette]

It's a reasonable request. Two behaviors can be considered:

1. the target image links to the source, so when the latter is modified, the former too
2. the target image is a hard copy of the source made at creation time only.

Then:

1: is natural for instance when you have many sprites with the same image
2: is maybe a better choice because if we want to have the behavior of 1). we could first create the target image with Image.copy and then only update the source.