Cleanup EditableItemModel example

Cleanup the EditableItemModel example:
 - include own headers first
 - use nullptr
 - add sanity checks
 - use for loop instead foreach
 - use const where possible

Change-Id: Ib36e5710c07979576b48a905ee50908a64dcb697
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

1 files changed, 1 insertions, 2 deletions

diff --git a/examples/widgets/itemviews/editabletreemodel/mainwindow.h b/examples/widgets/itemviews/editabletreemodel/mainwindow.h
index dbc745e25d..314b0cb1fa 100644
--- a/examples/widgets/itemviews/editabletreemodel/mainwindow.h
+++ b/examples/widgets/itemviews/editabletreemodel/mainwindow.h
@@ -54,14 +54,13 @@
 #include "ui_mainwindow.h"
 
 #include <QMainWindow>
-#include <QModelIndex>
 
 class MainWindow : public QMainWindow, private Ui::MainWindow
 {
     Q_OBJECT
 
 public:
-    MainWindow(QWidget *parent = 0);
+    MainWindow(QWidget *parent = nullptr);
 
 public slots:
     void updateActions();