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>

2 files changed, 8 insertions, 5 deletions

diff --git a/src/gui/doc/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp b/src/gui/doc/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp
index 40893fae87..4266da0a11 100644
--- a/src/gui/doc/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp
+++ b/src/gui/doc/snippets/code/src_gui_itemviews_qstandarditemmodel.cpp
@@ -73,8 +73,8 @@ for (int i = 0; i < 4; ++i) {
 //! [2]
 QTreeView *treeView = new QTreeView(this);
 treeView->setModel(myStandardItemModel);
-connect(treeView, SIGNAL(clicked(QModelIndex)),
-        this, SLOT(clicked(QModelIndex)));
+connect(treeView, &QTreeView::clicked,
+        this, &MyWidget::clicked);
 //! [2]
 
 
diff --git a/src/gui/doc/snippets/code/src_gui_kernel_qguiapplication.cpp b/src/gui/doc/snippets/code/src_gui_kernel_qguiapplication.cpp
index 7c5c387a5a..a399d444e1 100644
--- a/src/gui/doc/snippets/code/src_gui_kernel_qguiapplication.cpp
+++ b/src/gui/doc/snippets/code/src_gui_kernel_qguiapplication.cpp
@@ -64,7 +64,8 @@ MyMainWidget::MyMainWidget(QWidget *parent)
     :QWidget(parent)
 {
     QGuiApplication::setFallbackSessionManagementEnabled(false);
-    connect(qApp, SIGNAL(commitDataRequest(QSessionManager)), SLOT(commitData(QSessionManager)));
+    connect(qApp, &QGuiApplication::commitDataRequest,
+            this, &MyMainWidget::commitData);
 }
 
 void MyMainWidget::commitData(QSessionManager& manager)
@@ -102,12 +103,14 @@ appname -session id
 
 
 //! [3]
-foreach (const QString &command, mySession.restartCommand())
+const QStringList commands = mySession.restartCommand();
+for (const QString &command : commands)
     do_something(command);
 //! [3]
 
 
 //! [4]
-foreach (const QString &command, mySession.discardCommand())
+const QStringList commands = mySession.discardCommand();
+for (const QString &command : mySession.discardCommand())
     do_something(command);
 //! [4]