Make sure the virtual viewport doesn't go negative#13052
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I'll run a quick test build with this fix :) Thanks for jumping on it! |
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Summary of the Pull Request
When calculating the position of the virtual bottom after a resize with
reflow, it was possible for it to end up less than the height of the
viewport. This meant that the top of the virtual viewport would be
negative, which resulted in other operations failing further down the
line. This PR updates the virtual bottom calculation to fix that
scenario.
References
This was probably a regression introduced in PR #12972.
PR Checklist
Validation Steps Performed
I wasn't able to replicate the exact case described in issue #13034,
because I don't have Windows 11, so can't configure the default
terminal. However, I was able to reproduce a similar failure using a
SetConsoleScreenBufferInfoExcall, and I've confirmed that this PRhas fixed that.
I've also added another screen buffer test to make sure the
ResizeWithReflowmethod doesn't shrink the virtual bottom whenresizing at the top of the buffer.