search

hackerb9 / vt340test

Tests of VT340 compatibility
Creative Commons Zero v1.0 Universal
40 stars 5 forks source link

Add a Sixel scrolling test #7

Closed j4james closed 3 years ago

j4james commented 3 years ago

This tests at what point a Sixel image will trigger the viewport to scroll when the height of the image reaches the bottom of the screen (or the bottom margin when margins are set).

If I'm correct in my understanding of how it should work, then the -- markers above the images should all line up like this: image

hackerb9 commented 3 years ago

Looks almost correct. Furthest right square ended up higher than expected. See scrolling.png.

j4james commented 3 years ago

Looks almost correct. Furthest right square ended up higher than expected. See scrolling.png.

In a way that's great news. That means it's possible to output an image all the way to the bottom of the screen (or margin area) without it scrolling. But that's not what I was seeing in some of the other tests, so there must still be some aspect of the scrolling that I don't understand. I'll need to try and figure out what exactly is triggering the scroll in the other test cases.