[qt/qt/qtgraphs]: Summary of bulk changes made

Git repository change summary for qt/qt/qtgraphs
Pushed by mirror-service into branch '6.12'.
Changed from 672ef445655b67c5a2aaec86c1ac6c1d73e3bc6d to 7ef8f4d8c13909b2aa631644c16068455cbc587d
Acknowledgement was received that this change introduces only existing code that has been pushed to another public open source repository.

This change contains the following new commits:

Git commit 91d3869ae8a6385adeda94ef1ab598a698b2d776 by Qt Cherry-pick Bot (on behalf of Sami Varanka) on 28/07/2026 at 05:50..
Fix: Graphs 2D doesn't build without shape backend

There were few unused variable warnings in graphsview without shape
backend. In addition, QCPainterItem compilation failed due to
canvasPaint didn't use conditional compiling.

Amends 03e677e12594c10e9658b1bbed695512359c9564

Change-Id: Ida77722d3e38cc9d803e11016e59725e770c6223
Reviewed-by: Kwanghyo Park <[email protected]>
Reviewed-by: Sami Varanka <[email protected]>
(cherry picked from commit f7b00012e0048245a6895fd1222a5ce5b97cff58)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtgraphs/-/commit/91d3869ae8a6385adeda94ef1ab598a698b2d776

Git commit 7ef8f4d8c13909b2aa631644c16068455cbc587d by Qt Cherry-pick Bot (on behalf of Sami Varanka) on 28/07/2026 at 09:29..
2D Change datetimeaxis tickcount type

Previously datetimeaxis' tickCount property's type was qreal. Having
tickCount property with FP type is weird. Change the type to int.

Amends c09ae0ee04841c4f51e8a908529eb23943e43e7d to address header review
comment.

Task-number: QTBUG-146286
Change-Id: I9594fb9ca211e91f205c7026aeb207b269d9e273
Reviewed-by: Sami Varanka <[email protected]>
(cherry picked from commit 7e9902dd7a0fb3e603b5f9863e198b5578dc86fc)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtgraphs/-/commit/7ef8f4d8c13909b2aa631644c16068455cbc587d