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QItemDelegate was superseded since Qt4 by QStyledItemDelegate but it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 <volker.hilsheimer@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

1 files changed, 3 insertions, 3 deletions

diff --git a/examples/network/torrent/mainwindow.cpp b/examples/network/torrent/mainwindow.cpp
index 4c898743ba..2b5d0a8757 100644
--- a/examples/network/torrent/mainwindow.cpp
+++ b/examples/network/torrent/mainwindow.cpp
@@ -26,17 +26,17 @@ protected:
 };
 
 // TorrentViewDelegate is used to draw the progress bars.
-class TorrentViewDelegate : public QItemDelegate
+class TorrentViewDelegate : public QStyledItemDelegate
 {
     Q_OBJECT
 public:
-    inline TorrentViewDelegate(MainWindow *mainWindow) : QItemDelegate(mainWindow) {}
+    inline TorrentViewDelegate(MainWindow *mainWindow) : QStyledItemDelegate(mainWindow) {}
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option,
                const QModelIndex &index ) const override
     {
         if (index.column() != 2) {
-            QItemDelegate::paint(painter, option, index);
+            QStyledItemDelegate::paint(painter, option, index);
             return;
         }