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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qpictureformatplugin.h"
#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_PICTURE)
#include "qpicture.h"
QT_BEGIN_NAMESPACE
/*!
\obsolete
\class QPictureFormatPlugin
\brief The QPictureFormatPlugin class provides an abstract base
for custom picture format plugins.
\ingroup plugins
\inmodule QtGui
The picture format plugin is a simple plugin interface that makes
it easy to create custom picture formats that can be used
transparently by applications.
Writing an picture format plugin is achieved by subclassing this
base class, reimplementing the pure virtual functions
loadPicture(), savePicture(), and installIOHandler(), and
exporting the class with the Q_PLUGIN_METADATA() macro.
The json file containing the metadata should contain one entry
with the list of picture formats supported by the plugin:
\code
{ "Keys": [ "mypictureformat" ] }
\endcode
\sa {How to Create Qt Plugins}
*/
/*!
\fn bool QPictureFormatPlugin::installIOHandler(const QString &format)
Installs a QPictureIO picture I/O handler for the picture format \a
format. Returns \c true on success.
*/
/*!
Constructs an picture format plugin with the given \a parent.
This is invoked automatically by the moc generated code that exports the plugin.
*/
QPictureFormatPlugin::QPictureFormatPlugin(QObject *parent)
: QObject(parent)
{
}
/*!
Destroys the picture format plugin.
You never have to call this explicitly. Qt destroys a plugin
automatically when it is no longer used.
*/
QPictureFormatPlugin::~QPictureFormatPlugin()
{
}
/*!
Loads the picture stored in the file called \a fileName, with the
given \a format, into *\a picture. Returns \c true on success;
otherwise returns \c false.
\sa savePicture()
*/
bool QPictureFormatPlugin::loadPicture(const QString &format, const QString &fileName, QPicture *picture)
{
Q_UNUSED(format)
Q_UNUSED(fileName)
Q_UNUSED(picture)
return false;
}
/*!
Saves the given \a picture into the file called \a fileName,
using the specified \a format. Returns \c true on success; otherwise
returns \c false.
\sa loadPicture()
*/
bool QPictureFormatPlugin::savePicture(const QString &format, const QString &fileName, const QPicture &picture)
{
Q_UNUSED(format)
Q_UNUSED(fileName)
Q_UNUSED(picture)
return false;
}
#endif // QT_NO_LIBRARY || QT_NO_PICTURE
QT_END_NAMESPACE
|
