src/gui/image/qiconengineplugin.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 06 Jul 2010 15:10:48 +0300
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Revision: 201025 Kit: 2010127
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qiconengineplugin.h"
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#include "qiconengine.h"
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QT_BEGIN_NAMESPACE
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/*!
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    \class QIconEnginePlugin
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    \brief The QIconEnginePlugin class provides an abstract base for custom QIconEngine plugins.
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    \ingroup plugins
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    \bold {Use QIconEnginePluginV2 instead.}
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    The icon engine plugin is a simple plugin interface that makes it easy to
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    create custom icon engines that can be loaded dynamically into applications
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    through QIcon. QIcon uses the file or resource name's suffix to determine
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    what icon engine to use.
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    Writing a icon engine plugin is achieved by subclassing this base class,
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    reimplementing the pure virtual functions keys() and create(), and
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    exporting the class with the Q_EXPORT_PLUGIN2() macro.
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    \sa {How to Create Qt Plugins}
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*/
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/*!
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    \fn QStringList QIconEnginePlugin::keys() const
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    Returns a list of icon engine keys that this plugin supports. The keys correspond
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    to the suffix of the file or resource name used when the plugin was created.
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    Keys are case insensitive.
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    \sa create()
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*/
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/*!
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    \fn QIconEngine* QIconEnginePlugin::create(const QString& filename)
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    Creates and returns a QIconEngine object for the icon with the given
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    \a filename.
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    \sa keys()
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*/
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/*!
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    Constructs a icon engine plugin with the given \a parent. This is invoked
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    automatically by the Q_EXPORT_PLUGIN2() macro.
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*/
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QIconEnginePlugin::QIconEnginePlugin(QObject *parent)
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    : QObject(parent)
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{
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}
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/*!
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    Destroys the icon engine plugin.
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    You never have to call this explicitly. Qt destroys a plugin
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    automatically when it is no longer used.
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*/
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QIconEnginePlugin::~QIconEnginePlugin()
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{
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}
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// version 2
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/*!
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    \class QIconEnginePluginV2
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    \brief The QIconEnginePluginV2 class provides an abstract base for custom QIconEngineV2 plugins.
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    \ingroup plugins
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    \since 4.3
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    Icon engine plugins produces \l{QIconEngine}s for \l{QIcon}s; an
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    icon engine is used to render the icon. The keys that identifies
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    the engines the plugin can create are suffixes of 
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    icon filenames; they are returned by keys(). The create() function
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    receives the icon filename to return an engine for; it should
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    return 0 if it cannot produce an engine for the file.
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    Writing an icon engine plugin is achieved by inheriting
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    QIconEnginePluginV2, reimplementing keys() and create(), and
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    adding the Q_EXPORT_PLUGIN2() macro.
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    You should ensure that you do not duplicate keys. Qt will query
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    the plugins for icon engines in the order in which the plugins are
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    found during plugin search (see the plugins \l{How to Create Qt
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    Plugins}{overview document}).
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    \sa {How to Create Qt Plugins}
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*/
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/*!
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    \fn QStringList QIconEnginePluginV2::keys() const
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    Returns a list of icon engine keys that this plugin supports. The keys correspond
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    to the suffix of the file or resource name used when the plugin was created.
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    Keys are case insensitive.
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    \sa create()
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*/
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/*!
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    \fn QIconEngineV2* QIconEnginePluginV2::create(const QString& filename = QString())
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    Creates and returns a QIconEngine object for the icon with the given
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    \a filename.
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    \sa keys()
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*/
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/*!
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    Constructs a icon engine plugin with the given \a parent. This is invoked
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    automatically by the Q_EXPORT_PLUGIN2() macro.
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*/
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QIconEnginePluginV2::QIconEnginePluginV2(QObject *parent)
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    : QObject(parent)
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{
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}
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/*!
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    Destroys the icon engine plugin.
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    You never have to call this explicitly. Qt destroys a plugin
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    automatically when it is no longer used.
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*/
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QIconEnginePluginV2::~QIconEnginePluginV2()
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{
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}
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QT_END_NAMESPACE