Tooltip - Add the capability to render layer features with QGIS Style (using SLD)

[nboisteault]

Allow to display the tooltip layer features with the same symbology as in QGIS project.

The style is taken from QGIS Server GetStyle request in SLD format. The rendering in Lizmap Web Client could defer from the one in QGIS, since SLD cannot mimic every option in QGIS.

If you use PNG or SVG in your symbology, you must keep them simple and embed them inside the QGIS project. External SVG won't be displayed.

When the user hovers a layer feature, its size in increased by 50%

Capture.video.du.2025-11-21.14-58-10.mp4

A new option displayLayerStyle must be set to `true' in the layer Tooltip configuration with Lizmap plugin, for this behaviour to happen.

Funded by CD30 Gard

[github-actions]

The Lizmap project highly values your contribution and would love to see this work merged! Unfortunately this PR has not had any activity in the last 2 months and is being automatically marked as "stale".
If there is no further activity on this pull request, it will be closed in two weeks.

[github-actions]

The Lizmap project highly values your contribution and would love to see this work merged! Unfortunately this PR has not had any activity in the last 2 months and is being automatically marked as "stale".
If there is no further activity on this pull request, it will be closed in two weeks.

[rldhont]

@mdouchin would it need some configuration ?

[mdouchin]

Yes, a way to setup a new property for each tooltip layer

"displayLayerStyle": true

[mdouchin]

@rldhont I just pushed back after rebasing from master. It seems ready to be merged, if you are OK.

[rldhont]

@mdouchin you can merge