src/gui/image/qpictureformatplugin.cpp
author Eckhart Koeppen <eckhart.koppen@nokia.com>
Wed, 21 Apr 2010 20:15:53 +0300
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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 "qpictureformatplugin.h"
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#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_PICTURE)
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#include "qpicture.h"
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QT_BEGIN_NAMESPACE
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/*!
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    \obsolete
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    \class QPictureFormatPlugin
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    \brief The QPictureFormatPlugin class provides an abstract base
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    for custom picture format plugins.
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    \ingroup plugins
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    The picture format plugin is a simple plugin interface that makes
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    it easy to create custom picture formats that can be used
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    transparently by applications.
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    Writing an picture format plugin is achieved by subclassing this
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    base class, reimplementing the pure virtual functions keys(),
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    loadPicture(), savePicture(), and installIOHandler(), 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 QPictureFormatPlugin::keys() const
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    Returns the list of picture formats this plugin supports.
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    \sa installIOHandler()
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*/
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/*!
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    \fn bool QPictureFormatPlugin::installIOHandler(const QString &format)
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    Installs a QPictureIO picture I/O handler for the picture format \a
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    format.
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    \sa keys()
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*/
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/*!
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    Constructs an picture format plugin with the given \a parent.
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    This is invoked automatically by the Q_EXPORT_PLUGIN2() macro.
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*/
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QPictureFormatPlugin::QPictureFormatPlugin(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 picture format 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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QPictureFormatPlugin::~QPictureFormatPlugin()
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{
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}
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/*!
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    Loads the picture stored in the file called \a fileName, with the
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    given \a format, into *\a picture. Returns true on success;
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    otherwise returns false.
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    \sa savePicture()
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*/
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bool QPictureFormatPlugin::loadPicture(const QString &format, const QString &fileName, QPicture *picture)
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{
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    Q_UNUSED(format)
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    Q_UNUSED(fileName)
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    Q_UNUSED(picture)
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    return false;
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}
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/*!
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    Saves the given \a picture into the file called \a fileName,
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    using the specified \a format. Returns true on success; otherwise
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    returns false.
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    \sa loadPicture()
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*/
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bool QPictureFormatPlugin::savePicture(const QString &format, const QString &fileName, const QPicture &picture)
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{
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    Q_UNUSED(format)
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    Q_UNUSED(fileName)
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    Q_UNUSED(picture)
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    return false;
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}
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#endif // QT_NO_LIBRARY || QT_NO_PICTURE
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QT_END_NAMESPACE