penma / feht2 Goto Github PK

Like in Feh. Unfortunately that code is full of magic numbers and so it has to be figured out how to do it right.

Is also lacking any handling of warp limits. API exists but is not implemented on either side. Warp limits will not prevent emission of events, they will only prevent pointer warping - keyboard input will scroll as well and should not allow excess scrolling either.

Luckily most of this happens in common/input and so this issue is relatively self-contained.

Font path and font name are hardcoded.

Long-term goal: configure font(path)(s) in config file.

Mid-term goals:

• Automatically populate font path with something useful for the system (ideally, X11 font path... must find out more about this)
• Try several fonts, one of which is likely to be installed

0976491 changed behaviour to just save the next-largest power of two and downscale that as needed at render time. However, even on fast boxes, this ad-hoc rendering does, while not making in unacceptably slow, make it look less smooth.

There are two possibilities:

1. Store the right size in addition to the next power of two.
2. As before, store only the right size. This will make regeneration a bit slower, but that can be sped up by using the ondisk thumbnail cache if a suitable size is available. (It doesn't matter if we open the original or the thumbnail if all we want is a smaller thumbnail.)

Not needed and only eats performance by rescaling the same thumbnails over 9000 times. Better keep original thumb size until drag_stop

Current system is maybe obvious to a developer but not to a user. Change this to something better.

Ideas:

• Displaying white frames temporarily to emphasize what the new layout will really be looking like.
• Fix aspect ratio, map drag distance to scale factor and change the ratio in a different way.

Useless to have user wait for thumbnails that he doesn't want to see. Have priorities.

1. Thumbnails that are currently visible in the window. Maybe a few ones ahead too, so when scrolling down thumbnails are already done.
2. Invisible ones. Just linearly from beginning.

For each of the two sets:

1. Missing thumbnails
2. Thumbnails that are present but smaller than requested
3. Thumbnails that are larger than requested.