QtGui documentation: cleanup

Cleanup the QtGui documentation:
 - use new signal/slot syntax
 - use range-based for loop instead foreach

Change-Id: Id49ff2cbe78f28a06ca0fb63e6ca6f7dc2736f7b
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/gui/doc/snippets/textdocument-selections/mainwindow.cpp b/src/gui/doc/snippets/textdocument-selections/mainwindow.cpp
index 8ac3913f3c..9253e87670 100644
--- a/src/gui/doc/snippets/textdocument-selections/mainwindow.cpp
+++ b/src/gui/doc/snippets/textdocument-selections/mainwindow.cpp
@@ -48,7 +48,7 @@
 **
 ****************************************************************************/
 
-#include <QtGui>
+#include <QtWidgets>
 
 #include "mainwindow.h"
 
@@ -90,7 +90,8 @@ MainWindow::MainWindow()
     document = new QTextDocument(this);
     editor->setDocument(document);
 
-    connect(editor, SIGNAL(selectionChanged()), this, SLOT(updateMenus()));
+    connect(editor, &QTextEdit::selectionChanged,
+            this, &MainWindow::updateMenus);
 
     setCentralWidget(editor);
     setWindowTitle(tr("Text Document Writer"));