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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Free Documentation License
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+ \example player
+ \title Media Player Example
+
+
+ This example creates a simple multimedia player. We can play audio and
+ or video files using various codecs.
+
+ The example uses a QMediaPlayer object passed into a QVideoWidget to
+ control the video output. To give the application playlist capability
+ we also use a QPlayList object.
+
+ To activate the various functions such as play and stop on the dialog
+ we connect clicked() signals to slots that emit the play() and stop()
+ signals and in turn which we connect to the play() and stop() slots in
+ QMediaPlayer.
+
+ \code
+ connect(controls, SIGNAL(play()), player, SLOT(play()));
+ connect(controls, SIGNAL(pause()), player, SLOT(pause()));
+ connect(controls, SIGNAL(stop()), player, SLOT(stop()));
+ \endcode
+
+ We can get the volume (and set our user interface representation)
+
+ \code
+ controls->setVolume(player->volume());
+ \endcode
+
+ and we can make widget 'volume' changes change the volume
+
+ \code
+ connect(controls, SIGNAL(changeVolume(int)), player, SLOT(setVolume(int)));
+ \endcode
+
+ The example also allows us to change various video properties by means
+ of the QVideoWidget object. We can go to Full Screen mode with a single
+ button click, and back again. Or if we press the "Color Options" dialog
+ button we can have access to more subtle influences. The dialog has a
+ set of sliders so that we can change the brightness, contrast, hue and
+ saturation of the video being watched. The connect() statements are in
+ pairs so that changes to either the user interface widget (the relevant
+ slider) or the QVideoWidget object will update the other object.
+
+ \code
+ connect(brightnessSlider, SIGNAL(sliderMoved(int)), videoWidget,
+ SLOT(setBrightness(int)));
+ connect(videoWidget, SIGNAL(brightnessChanged(int)),
+ brightnessSlider, SLOT(setValue(int)));
+
+ connect(contrastSlider, SIGNAL(sliderMoved(int)), videoWidget,
+ SLOT(setContrast(int)));
+ connect(videoWidget, SIGNAL(contrastChanged(int)), contrastSlider,
+ SLOT(setValue(int)));
+
+ connect(hueSlider, SIGNAL(sliderMoved(int)), videoWidget,
+ SLOT(setHue(int)));
+ connect(videoWidget, SIGNAL(hueChanged(int)), hueSlider,
+ SLOT(setValue(int)));
+
+ connect(saturationSlider, SIGNAL(sliderMoved(int)), videoWidget,
+ SLOT(setSaturation(int)));
+ connect(videoWidget, SIGNAL(saturationChanged(int)),
+ saturationSlider, SLOT(setValue(int)));
+ \endcode
+
+*/
+