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cnjinhao / nana

a modern C++ GUI library
https://nana.acemind.cn
Boost Software License 1.0
2.3k stars 331 forks source link

textbox scrolling doesn't scroll to top/bottom properly #603

Closed ashbob999 closed 3 years ago

ashbob999 commented 3 years ago

Using the textbox with line numbers example, so that the issue is easier to see. When we add enough lines to make the scroll bar appear, and you scroll to the top of the textbox it does not scroll right to the top but scrolls to 1 line before. You then have to scroll down, then up to get to the first line. This also happens when you scroll to the bottom line.

After testing it only happens when the line count is even.

Attached are 2 videos showing what I mean Odd Lines Even lines

cnjinhao commented 3 years ago

Fixed! Thank you a lot for reporting this bug.

ashbob999 commented 3 years ago

Thanks, works smoothly and as intended now.