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📄 qstyleplugin.cpp

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/******************************************************************************** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.**** This file is part of the QtGui module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 as published by the Free Software Foundation** and appearing in the file LICENSE.GPL included in the packaging of** this file.  Please review the following information to ensure GNU** General Public Licensing requirements will be met:** http://trolltech.com/products/qt/licenses/licensing/opensource/**** If you are unsure which license is appropriate for your use, please** review the following information:** http://trolltech.com/products/qt/licenses/licensing/licensingoverview** or contact the sales department at sales@trolltech.com.**** In addition, as a special exception, Trolltech gives you certain** additional rights. These rights are described in the Trolltech GPL** Exception version 1.0, which can be found at** http://www.trolltech.com/products/qt/gplexception/ and in the file** GPL_EXCEPTION.txt in this package.**** In addition, as a special exception, Trolltech, as the sole copyright** holder for Qt Designer, grants users of the Qt/Eclipse Integration** plug-in the right for the Qt/Eclipse Integration to link to** functionality provided by Qt Designer and its related libraries.**** Trolltech reserves all rights not expressly granted herein.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#include "qstyleplugin.h"#include "qstyle.h"/*!    \class QStylePlugin    \brief The QStylePlugin class provides an abstract base for custom QStyle plugins.    \ingroup plugins    QStylePlugin is a simple plugin interface that makes it easy    to create custom styles that can be loaded dynamically into    applications using the QStyleFactory class.    Writing a style plugin is achieved by subclassing this base class,    reimplementing the pure virtual keys() and create() functions, and    exporting the class using the Q_EXPORT_PLUGIN2() macro. See \l    {How to Create Qt Plugins} for details.    \sa QStyleFactory, QStyle*//*!    \fn QStringList QStylePlugin::keys() const    Returns the list of style keys this plugin supports.    These keys are usually the class names of the custom styles that    are implemented in the plugin.    \sa create()*//*!    \fn QStyle* QStylePlugin::create(const QString& key)    Creates and returns a QStyle object for the given style \a key.    The style key is usually the class name of the required    style. Note that the keys are case insensitive. For example:    \quotefromfile snippets/qstyleplugin/main.cpp    \skipto MyStylePlugin::keys    \printuntil }    \skipto MyStylePlugin::create    \printuntil return 0    \printuntil }    \sa keys()*//*!    Constructs a style plugin with the given \a parent.    Note that this constructor is invoked automatically by the    Q_EXPORT_PLUGIN2() macro, so there is no need for calling it    explicitly.*/QStylePlugin::QStylePlugin(QObject *parent)    : QObject(parent){}/*!    Destroys the style plugin.    Note that Qt destroys a plugin automatically when it is no longer    used, so there is no need for calling the destructor explicitly.*/QStylePlugin::~QStylePlugin(){}

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