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QItemDelegate was superseded since Qt4 by QStyledItemDelegate but it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 6.6
Change-Id: I246755004ce2d01192a726ca0972106c237df0cc
Reviewed-by: Volker Hilsheimer <[email protected]>
Reviewed-by: Paul Wicking <[email protected]>

1 files changed, 3 insertions, 3 deletions

diff --git a/tests/manual/widgets/itemviews/delegate/example.cpp b/tests/manual/widgets/itemviews/delegate/example.cpp
index 3421b7790b1..9df2d87ee84 100644
--- a/tests/manual/widgets/itemviews/delegate/example.cpp
+++ b/tests/manual/widgets/itemviews/delegate/example.cpp
@@ -5,7 +5,7 @@
 #include <QApplication>
 #include <QTableView>
 #include <QStandardItemModel>
-#include <QItemDelegate>
+#include <QStyledItemDelegate>
 #include <QDebug>
 #include <QComboBox>
 
@@ -16,10 +16,10 @@ public:
     ~ExampleEditor() { QApplication::instance()->quit(); }
 };
 
-class ExampleDelegate : public QItemDelegate
+class ExampleDelegate : public QStyledItemDelegate
 {
 public:
-    ExampleDelegate() : QItemDelegate()
+    ExampleDelegate() : QStyledItemDelegate()
     {
         m_editor = new ExampleEditor(0);
         m_combobox = new QComboBox(0);