Preparations to deprecate QItemDelegate

QItemDelegate was superseded since Qt4 by QStyledItemDelegate but it
took until Qt6.7 to remove the last occurrences in qtbase.
 - remove unused includes / replace with qabstractitemdelegate.h
 - replace references in the documentation with QStyledItemDelegate
 - adjust the examples and tests to use QStyledItemDelegate

Pick-to: 6.5
Change-Id: I246755004ce2d01192a726ca0972106c237df0cc
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
(cherry picked from commit 4e8b54eb811f8c6064fd2e937711efe68543087c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/util/locale_database/testlocales/localewidget.cpp b/util/locale_database/testlocales/localewidget.cpp
index 50b9b81594..c35c3dc1d8 100644
--- a/util/locale_database/testlocales/localewidget.cpp
+++ b/util/locale_database/testlocales/localewidget.cpp
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 #include <QTableView>
 #include <QVBoxLayout>
-#include <QItemDelegate>
+#include <QStyledItemDelegate>
 #include <QItemEditorFactory>
 #include <QDoubleSpinBox>
 
@@ -38,7 +38,7 @@ LocaleWidget::LocaleWidget(QWidget *parent)
     m_model = new LocaleModel(this);
     m_view = new QTableView(this);
 
-    QItemDelegate *delegate = qobject_cast<QItemDelegate*>(m_view->itemDelegate());
+    QStyledItemDelegate *delegate = qobject_cast<QStyledItemDelegate*>(m_view->itemDelegate());
     Q_ASSERT(delegate != 0);
     static EditorFactory editor_factory;
     delegate->setItemEditorFactory(&editor_factory);