# fix\(ui\): reserve chart readout height to prevent layout shift \(\#246\) · lucenx/codexbar-plasma

[View on GitCafe](https://git.cafe/lucenx/codexbar-plasma/commit/f7135dbdb5b999b6d329f2391e84b1ff8e93e1c4)

Repository: [lucenx/codexbar-plasma](https://git.cafe/lucenx/codexbar-plasma)

Visibility: public

Requested revision: f7135dbdb5b999b6d329f2391e84b1ff8e93e1c4

Requested commit: f7135dbdb5b999b6d329f2391e84b1ff8e93e1c4

Commit: f7135dbdb5b999b6d329f2391e84b1ff8e93e1c4

Tree: 889af7e58698f687fc089f287d88942ec12afbac

Author: Simone

Committer: GitHub

## Message

```
fix(ui): reserve chart readout height to prevent layout shift (#246)

* fix(ui): reserve chart readout height to prevent layout shift

Reserve initial readout row height in interactive charts using FontMetrics
so that hovering a point for the first time does not cause a vertical layout shift.

Co-authored-by: Lucenx9 <185146821+Lucenx9@users.noreply.github.com>

* fix(ui): reserve chart readout height to prevent layout shift

Reserve initial readout row height in interactive charts using FontMetrics
so that hovering a point for the first time does not cause a vertical layout shift.

Co-authored-by: Lucenx9 <185146821+Lucenx9@users.noreply.github.com>

* test(ui): verify chart readout geometry with real controls

Cover first pointer and keyboard inspection, exit, and cleared points. Keep unrelated plain-text control tests unchanged. Document the regression coverage; the original reserved-height change has no observed geometry difference on the tested Qt 6.8.2 and 6.11.1 environments.

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: Lucenx9 <185146821+Lucenx9@users.noreply.github.com>
```

## Parents

- [b89542992515c64a5913f40a643053e8c9f05a9a](https://git.cafe/lucenx/codexbar-plasma/commit/b89542992515c64a5913f40a643053e8c9f05a9a?format=markdown)

[Source at this commit](https://git.cafe/lucenx/codexbar-plasma/tree/f7135dbdb5b999b6d329f2391e84b1ff8e93e1c4?format=markdown)