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| |
| #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/private/qtguiglobal_p.h> |
| #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 |
| // V4: |
| quint32 biRedMask; |
| quint32 biGreenMask; |
| quint32 biBlueMask; |
| quint32 biAlphaMask; |
| qint32 biCSType; |
| qint32 biEndpoints[9]; |
| qint32 biGammaRed; |
| qint32 biGammaGreen; |
| qint32 biGammaBlue; |
| // V5: |
| qint32 biIntent; |
| qint32 biProfileData; |
| qint32 biProfileSize; |
| qint32 biReserved; |
| }; |
| |
| // BMP-Handler, which is also able to read and write the DIB |
| // (Device-Independent-Bitmap) format used internally in the Windows operating |
| // system for OLE/clipboard operations. DIB is a subset of BMP (without file |
| // header). The Windows-Lighthouse plugin accesses the DIB-functionality. |
| |
| class QBmpHandler : public QImageIOHandler |
| { |
| public: |
| enum InternalFormat { |
| DibFormat, |
| BmpFormat |
| }; |
| |
| explicit QBmpHandler(InternalFormat fmt = BmpFormat); |
| bool canRead() const override; |
| bool read(QImage *image) override; |
| bool write(const QImage &image) override; |
| |
| #if QT_DEPRECATED_SINCE(5, 13) |
| QByteArray name() const override; |
| #endif |
| static bool canRead(QIODevice *device); |
| |
| QVariant option(ImageOption option) const override; |
| void setOption(ImageOption option, const QVariant &value) override; |
| bool supportsOption(ImageOption option) const override; |
| |
| private: |
| bool readHeader(); |
| inline QByteArray formatName() const; |
| |
| enum State { |
| Ready, |
| ReadHeader, |
| Error |
| }; |
| |
| const InternalFormat m_format; |
| |
| State state; |
| BMP_FILEHDR fileHeader; |
| BMP_INFOHDR infoHeader; |
| qint64 startpos; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_IMAGEFORMAT_BMP |
| |
| #endif // QBMPHANDLER_P_H |