Fix: [syncfusion_flutter_gauges] SfLinearGauge drag offset issue inside custom RenderObjects with Paint Offset

[ThibautTrarbach]

Hello,

Here is a pull request related to issue.

This is the patch explained in the issue and currently being used in one of our apps with @scalz.

Thank you in advance,
Thibaut

[Harsha-SF4223]

Hi @ThibautTrarbach,

Thank you for sharing your proposal and providing the patch related to the reported issue.

​We will fix the issue, and the update will be included in our upcoming weekly release, scheduled for January 13, 2026. We appreciate your continued support in helping us deliver high-quality components.

​Regards,
Harsha.

[Mugunthan-Ramalingam]

Hi @ThibautTrarbach,

The reported issue has been resolved, and the fix is included in the version mentioned below. We kindly request you to upgrade the syncfusion_flutter_gauges package to the latest version to avoid this issue.

Version: https://pub.dev/packages/syncfusion_flutter_gauges/versions/32.1.23

Root Cause:

The drag handler previously used details.localPosition to compute the marker’s value. In scenarios where parent widgets apply paint offsets without providing a transform layer, the gesture recognizer may report local coordinates relative to the parent’s origin instead of the gauge’s actual drawn location. This caused a mismatch between the pointer position and the gauge value.

Please let us know if you need any assistance with the upgrade or have further questions.

Regards,
Mugunthan.