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Diffstat (limited to 'src/gui/image/qbmphandler_p.h')
| -rw-r--r-- | src/gui/image/qbmphandler_p.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/gui/image/qbmphandler_p.h b/src/gui/image/qbmphandler_p.h new file mode 100644 index 0000000..6e953a5 --- /dev/null +++ b/src/gui/image/qbmphandler_p.h @@ -0,0 +1,117 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QBMPHANDLER_P_H +#define QBMPHANDLER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "QtGui/qimageiohandler.h" + +#ifndef QT_NO_IMAGEFORMAT_BMP + +QT_BEGIN_NAMESPACE + +struct BMP_FILEHDR { // BMP file header + char bfType[2]; // "BM" + qint32 bfSize; // size of file + qint16 bfReserved1; + qint16 bfReserved2; + qint32 bfOffBits; // pointer to the pixmap bits +}; + +struct BMP_INFOHDR { // BMP information header + qint32 biSize; // size of this struct + qint32 biWidth; // pixmap width + qint32 biHeight; // pixmap height + qint16 biPlanes; // should be 1 + qint16 biBitCount; // number of bits per pixel + qint32 biCompression; // compression method + qint32 biSizeImage; // size of image + qint32 biXPelsPerMeter; // horizontal resolution + qint32 biYPelsPerMeter; // vertical resolution + qint32 biClrUsed; // number of colors used + qint32 biClrImportant; // number of important colors +}; + +class QBmpHandler : public QImageIOHandler +{ +public: + QBmpHandler(); + bool canRead() const; + bool read(QImage *image); + bool write(const QImage &image); + + QByteArray name() const; + + static bool canRead(QIODevice *device); + + QVariant option(ImageOption option) const; + void setOption(ImageOption option, const QVariant &value); + bool supportsOption(ImageOption option) const; + +private: + bool readHeader(); + enum State { + Ready, + ReadHeader, + Error + }; + State state; + BMP_FILEHDR fileHeader; + BMP_INFOHDR infoHeader; + int startpos; +}; + +QT_END_NAMESPACE + +#endif // QT_NO_IMAGEFORMAT_BMP + +#endif // QBMPHANDLER_P_H |