Add recent file handling to SDI/MDI and remove the recentfiles example.

The existing recentfiles example was basically a clone of the SDI
example with a "Recent" menu added. Assuming it is better to have
it all in one place, the functionality is merged into the existing
SDI/MDI examples.

- Implement recently opened files handling using a submenu and a
  QSettings array in the SDI/MDI examples.
- Remove recentfiles example.

Change-Id: Id5a1ab9fa1c2e6b9ec81309cfe74cf86f450392a
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>

2 files changed, 4 insertions, 42 deletions

diff --git a/examples/widgets/doc/src/application.qdoc b/examples/widgets/doc/src/application.qdoc
index 048b4bfd21..cd284ecba0 100644
--- a/examples/widgets/doc/src/application.qdoc
+++ b/examples/widgets/doc/src/application.qdoc
@@ -50,11 +50,10 @@
 
     To keep the example simple, recently opened files aren't shown in
     the \uicontrol{File} menu, even though this feature is desired in 90%
-    of applications. The \l{mainwindows/recentfiles}{Recent Files}
-    example shows how to implement this. Furthermore, this example
-    can only load one file at a time. The \l{mainwindows/sdi}{SDI}
-    and \l{mainwindows/mdi}{MDI} examples shows how to lift these
-    restrictions.
+    of applications. Furthermore, this example can only load one file at a
+    time. The \l{mainwindows/sdi}{SDI} and \l{mainwindows/mdi}{MDI} examples
+    show how to lift these restrictions and how to implement recently opened files
+    handling.
 
     \section1 MainWindow Class Definition
 
diff --git a/examples/widgets/doc/src/recentfiles.qdoc b/examples/widgets/doc/src/recentfiles.qdoc
deleted file mode 100644
index b58c9a1f76..0000000000
--- a/examples/widgets/doc/src/recentfiles.qdoc
+++ /dev/null
@@ -1,37 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://www.qt.io/contact-us.
-**
-** GNU Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file. Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: http://www.gnu.org/copyleft/fdl.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-    \example mainwindows/recentfiles
-    \title Recent Files Example
-    \ingroup examples-mainwindow
-
-    \brief The Recent Files example shows how a standard File menu can be extended to show
-    the most recent files loaded by a main window application.
-
-    \image recentfiles-example.png
-*/