Doc: Update examples used in Writing QML Extensions tutorial

Update the examples to use Qt's resource file system to
store the qml files in, enabling them to run unmodified
in any platform/build configuration.

Also,
    - Chapter 6: Move the plugin code to a subproject
      and create a C++ application to use the plugin
    - Update documentation related to above chapter
    - Add thumbnails for the examples so they will
      appear in Qt Creators example list.

Task-number: QTBUG-35001
Change-Id: I29122af11bb11c7e5e17993438e5fc18c7f96f89
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Reviewed-by: Alan Alpert <aalpert@blackberry.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/examples/qml/tutorials/extending/chapter6-plugins/main.cpp b/examples/qml/tutorials/extending/chapter6-plugins/main.cpp
new file mode 100644
index 0000000000..60d8c6cd7a
--- /dev/null
+++ b/examples/qml/tutorials/extending/chapter6-plugins/main.cpp
@@ -0,0 +1,53 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+**     of its contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+//![0]
+#include <QtQuick/QQuickView>
+#include <QGuiApplication>
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+    QQuickView view;
+    view.setResizeMode(QQuickView::SizeRootObjectToView);
+    view.setSource(QUrl("qrc:///app.qml"));
+    view.show();
+    return app.exec();
+}
+//![0]