Glk: Image scaling in buffer windows

[Dannii]

@zarf

If the width goes to zero, the image does not appear.

I meant if you set the maxwidth parameter to 0, and the image’s original width is wider than the screen, in which case it should be clipped.

@zarf

(By the way, I never saw the term “fleuron” before this discussion.)

Quite a few posts in the previous discussion refered to them, including one you replied to .

@zarf

I expect fleurons to use imagerule_WidthRatio rather than maxwidth, for a horizontal-bar sort of divider. The sort of divider that looks like three stars (or flowers) should scale down proportionally; stars don’t look good squished. So I think my rule is justified.

It depends on what type of image you’re using. If you’re using one like this you’d want the height to scale:

But one like this you might be okay to lose its aspect ratio:

There could also be an image which has no horizontal details, like a rainbow or a barcode, which you would want stretched.

I had been thinking of a situation in which you might want to have a border image with a original width of 600px but then apply a 80% max-width onto it, keeping the height the same in both cases. But this might be overkill. Not having special rules for imagerule_HeightFixed would certainly be simpler.

@Draconis You were one of the people originally pushing for fleuron-style support. Is a percentage of the screen width with fixed height good enough?

@zarf

Hm. How about I drop the maxwidth argument entirely, and use val2 for the maxwidth for buffer windows? (val2 is currently unused for buffer windows.) That would segment the functionality nicely.

Hmm, that could be a good addition. Would it then be useable in the original functions too?