https://bugs.kde.org/show_bug.cgi?id=513240

            Bug ID: 513240
           Summary: Build failed on
                    core/libs/properties/itemsgroupedviewtoolbar.cpp with
                    QT5  compatibilty error
    Classification: Applications
           Product: digikam
      Version First 8.9.0
       Reported In:
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Build failled with error :

``` text* In file included from
/mnt/2c98cfab-4320-4ff2-b8d7-f2da522cc741/digikam-devel/mygit/digikam-8.8.0-dev-202512120836/core/libs/properties/itemsgroupedviewtoolbar.cpp:15:
/mnt/2c98cfab-4320-4ff2-b8d7-f2da522cc741/digikam-devel/mygit/digikam-8.8.0-dev-202512120836/core/libs/properties/itemsgroupedviewtoolbar.h:38:21:
error: 'QEnterEvent' has not been declared
   38 |     void enterEvent(QEnterEvent *event) override;
      |                     ^~~~~~~~~~~
/mnt/2c98cfab-4320-4ff2-b8d7-f2da522cc741/digikam-devel/mygit/digikam-8.8.0-dev-202512120836/core/libs/properties/itemsgroupedviewtoolbar.h:38:10:
error: 'void Digikam::ItemsGroupedViewToolbar::enterEvent(int*)' marked
'override', but does not override
   38 |     void enterEvent(QEnterEvent *event) override;
      |          ^~~~~~~~~~
In file included from /usr/include/x86_64-linux-gnu/qt5/QtWidgets/QWidget:1,
                 from
/mnt/2c98cfab-4320-4ff2-b8d7-f2da522cc741/digikam-devel/mygit/digikam-8.8.0-dev-202512120836/core/libs/properties/itemsgroupedviewtoolbar.h:19:
/usr/include/x86_64-linux-gnu/qt5/QtWidgets/qwidget.h:631:18: warning: 'virtual
void QWidget::enterEvent(QEvent*)' was hidden [-Woverloaded-virtual=]
  631 |     virtual void enterEvent(QEvent *event);
      |                  ^~~~~~~~~~
/mnt/2c98cfab-4320-4ff2-b8d7-f2da522cc741/digikam-devel/mygit/digikam-8.8.0-dev-202512120836/core/libs/properties/itemsgroupedviewtoolbar.h:38:10:
note:   by 'void Digikam::ItemsGroupedViewToolbar::enterEvent(int*)'
   38 |     void enterEvent(QEnterEvent *event) override;
      |          ^~~~~~~~~~
/mnt/2c98cfab-4320-4ff2-b8d7-f2da522cc741/digikam-devel/mygit/digikam-8.8.0-dev-202512120836/core/libs/properties/itemsgroupedviewtoolbar.cpp:55:6:
error: variable or field 'enterEvent' declared void
   55 | void ItemsGroupedViewToolbar::enterEvent(QEnterEvent* event)
      |      ^~~~~~~~~~~~~~~~~~~~~~~
/mnt/2c98cfab-4320-4ff2-b8d7-f2da522cc741/digikam-devel/mygit/digikam-8.8.0-dev-202512120836/core/libs/properties/itemsgroupedviewtoolbar.cpp:55:42:
error: 'QEnterEvent' was not declared in this scope; did you mean
'QTimerEvent'?
   55 | void ItemsGroupedViewToolbar::enterEvent(QEnterEvent* event)
      |                                          ^~~~~~~~~~~
      |                                          QTimerEvent
/mnt/2c98cfab-4320-4ff2-b8d7-f2da522cc741/digikam-devel/mygit/digikam-8.8.0-dev-202512120836/core/libs/properties/itemsgroupedviewtoolbar.cpp:55:55:
error: 'event' was not declared in this scope; did you mean 'QEvent'?
   55 | void ItemsGroupedViewToolbar::enterEvent(QEnterEvent* event)
      |                                                       ^~~~~
      |                                                       QEvent
make[3]: ***
[core/libs/properties/CMakeFiles/gui_itempropertiesdigikam_obj.dir/build.make:228:
core/libs/properties/CMakeFiles/gui_itempropertiesdigikam_obj.dir/itemsgroupedviewtoolbar.cpp.o]
Error 1
make[3]: *** Waiting for unfinished jobs.... ```

Root cause:
The code uses QEnterEvent which was introduced in Qt 6, but the compilation
environment uses Qt 5. In Qt 5, the appropriate event type is QEvent
(specifically QEvent::Enter).

Affected files:

core/libs/properties/itemsgroupedviewtoolbar.h

core/libs/properties/itemsgroupedviewtoolbar.cpp

SOFTWARE/OS VERSIONS
Linux Mint 22-2
Environnement de développement de KDE 
Version 5.115.0
Qt 
Version 5.15.13 (Compilé avec 5.15.13)

ADDITIONAL INFORMATION

My last fine build was from commit : 9a31bbac

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