Polish the image viewer example.

- Open files passed on the command line.
- Point the file dialog to the pictures location
  and use a filter string for the supported types.
- Set the window title according to file name.

Task-number: QTBUG-37203
Task-number: QTBUG-39287
Change-Id: I4e5e43875c3a7544c862c054181e75942939c1d5
Reviewed-by: David Faure <david.faure@kdab.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/examples/widgets/widgets/imageviewer/main.cpp b/examples/widgets/widgets/imageviewer/main.cpp
index f1697f9e3f..ee66b29591 100644
--- a/examples/widgets/widgets/imageviewer/main.cpp
+++ b/examples/widgets/widgets/imageviewer/main.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
 ** Contact: http://www.qt-project.org/legal
 **
 ** This file is part of the examples of the Qt Toolkit.
@@ -39,13 +39,23 @@
 ****************************************************************************/
 
 #include <QApplication>
+#include <QCommandLineParser>
 
 #include "imageviewer.h"
 
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
+    QGuiApplication::setApplicationDisplayName(ImageViewer::tr("Image Viewer"));
+    QCommandLineParser commandLineParser;
+    commandLineParser.addHelpOption();
+    commandLineParser.addPositionalArgument(ImageViewer::tr("[file]"), ImageViewer::tr("Image file to open."));
+    commandLineParser.process(QCoreApplication::arguments());
     ImageViewer imageViewer;
+    if (!commandLineParser.positionalArguments().isEmpty()
+        && !imageViewer.loadFile(commandLineParser.positionalArguments().front())) {
+        return -1;
+    }
     imageViewer.show();
     return app.exec();
 }