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savefilter.h

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00001 /****************************************************************************
00002 **
00003 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
00004 ** Contact: Alexander Bokovoy <alexander.bokovoy@nokia.com>
00005 **
00006 ** This file is part of the Quill Image Filters package.
00007 **
00008 ** Commercial Usage
00009 ** Licensees holding valid Qt Commercial licenses may use this file in
00010 ** accordance with the Qt Commercial License Agreement provided with the
00011 ** Software or, alternatively, in accordance with the terms contained in
00012 ** a written agreement between you and Nokia.
00013 **
00014 ** GNU Lesser General Public License Usage
00015 ** Alternatively, this file may be used under the terms of the GNU Lesser
00016 ** General Public License version 2.1 as published by the Free Software
00017 ** Foundation and appearing in the file LICENSE.LGPL included in the
00018 ** packaging of this file.  Please review the following information to
00019 ** ensure the GNU Lesser General Public License version 2.1 requirements
00020 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
00021 **
00022 ** In addition, as a special exception, Nokia gives you certain
00023 ** additional rights. These rights are described in the Nokia Qt LGPL
00024 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
00025 ** package.
00026 **
00027 ** GNU General Public License Usage
00028 ** Alternatively, this file may be used under the terms of the GNU
00029 ** General Public License version 3.0 as published by the Free Software
00030 ** Foundation and appearing in the file LICENSE.GPL included in the
00031 ** packaging of this file.  Please review the following information to
00032 ** ensure the GNU General Public License version 3.0 requirements will be
00033 ** met: http://www.gnu.org/copyleft/gpl.html.
00034 **
00035 ** If you are unsure which license is appropriate for your use, please
00036 ** contact the sales department at qt-sales@nokia.com.
00037 **
00038 ****************************************************************************/
00039 
00055 #ifndef __QUILL_FILTERS_SAVE_H__
00056 #define __QUILL_FILTERS_SAVE_H__
00057 
00058 #include <QImageWriter>
00059 #include "quillimagefilter.h"
00060 #include "quillimagefilterimplementation.h"
00061 
00062 class QIODevice;
00063 class SaveFilterPrivate;
00064 
00065 class SaveFilter : public QuillImageFilterImplementation
00066 {
00067 public:
00068     SaveFilter();
00069     ~SaveFilter();
00070 
00078     QuillImage apply(const QuillImage &image) const;
00079 
00080     bool setOption(const QString &option, const QVariant &value);
00081     QVariant option(const QString &option) const;
00082     const QStringList supportedOptions() const;
00083 
00084     const QString name() const { return QuillImageFilter::Name_Save; }
00085 
00086     QuillImageFilter::QuillFilterRole role() const;
00087 
00088     QIODevice* iODevice() const;
00089 
00090     void setIODevice(QIODevice* iODevice);
00091 private:
00092     SaveFilterPrivate *priv;
00093 
00094     void setFileModificationDateTime() const;
00095 
00096     QuillImage saveJpeg(const QuillImage &image) const;
00097 
00098     bool saveFullImage(const QuillImage &image) const;
00099 
00100     void setError(QImageWriter::ImageWriterError error);
00101 
00102 private:
00103     static const QLatin1String Option_Timestamp;
00104 };
00105 
00106 #endif // __QUILL_FILTERS_SAVE_H__

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