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** GNU General Public License Usage | |
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#ifndef QIMAGEIOHANDLER_H | |
#define QIMAGEIOHANDLER_H | |
#include <QtCore/qplugin.h> | |
#include <QtCore/qfactoryinterface.h> | |
#include <QtCore/qscopedpointer.h> | |
QT_BEGIN_HEADER | |
QT_BEGIN_NAMESPACE | |
QT_MODULE(Gui) | |
class QImage; | |
class QRect; | |
class QSize; | |
class QVariant; | |
class QImageIOHandlerPrivate; | |
class Q_GUI_EXPORT QImageIOHandler | |
{ | |
Q_DECLARE_PRIVATE(QImageIOHandler) | |
public: | |
QImageIOHandler(); | |
virtual ~QImageIOHandler(); | |
void setDevice(QIODevice *device); | |
QIODevice *device() const; | |
void setFormat(const QByteArray &format); | |
void setFormat(const QByteArray &format) const; | |
QByteArray format() const; | |
virtual QByteArray name() const; | |
virtual bool canRead() const = 0; | |
virtual bool read(QImage *image) = 0; | |
virtual bool write(const QImage &image); | |
enum ImageOption { | |
Size, | |
ClipRect, | |
Description, | |
ScaledClipRect, | |
ScaledSize, | |
CompressionRatio, | |
Gamma, | |
Quality, | |
Name, | |
SubType, | |
IncrementalReading, | |
Endianness, | |
Animation, | |
BackgroundColor, | |
ImageFormat | |
}; | |
virtual QVariant option(ImageOption option) const; | |
virtual void setOption(ImageOption option, const QVariant &value); | |
virtual bool supportsOption(ImageOption option) const; | |
// incremental loading | |
virtual bool jumpToNextImage(); | |
virtual bool jumpToImage(int imageNumber); | |
virtual int loopCount() const; | |
virtual int imageCount() const; | |
virtual int nextImageDelay() const; | |
virtual int currentImageNumber() const; | |
virtual QRect currentImageRect() const; | |
protected: | |
QImageIOHandler(QImageIOHandlerPrivate &dd); | |
QScopedPointer<QImageIOHandlerPrivate> d_ptr; | |
private: | |
Q_DISABLE_COPY(QImageIOHandler) | |
}; | |
struct Q_GUI_EXPORT QImageIOHandlerFactoryInterface : public QFactoryInterface | |
{ | |
virtual QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const = 0; | |
}; | |
#define QImageIOHandlerFactoryInterface_iid "com.trolltech.Qt.QImageIOHandlerFactoryInterface" | |
Q_DECLARE_INTERFACE(QImageIOHandlerFactoryInterface, QImageIOHandlerFactoryInterface_iid) | |
class Q_GUI_EXPORT QImageIOPlugin : public QObject, public QImageIOHandlerFactoryInterface | |
{ | |
Q_OBJECT | |
Q_INTERFACES(QImageIOHandlerFactoryInterface:QFactoryInterface) | |
public: | |
explicit QImageIOPlugin(QObject *parent = 0); | |
virtual ~QImageIOPlugin(); | |
enum Capability { | |
CanRead = 0x1, | |
CanWrite = 0x2, | |
CanReadIncremental = 0x4 | |
}; | |
Q_DECLARE_FLAGS(Capabilities, Capability) | |
virtual Capabilities capabilities(QIODevice *device, const QByteArray &format) const = 0; | |
virtual QStringList keys() const = 0; | |
virtual QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const = 0; | |
}; | |
Q_DECLARE_OPERATORS_FOR_FLAGS(QImageIOPlugin::Capabilities) | |
QT_END_NAMESPACE | |
QT_END_HEADER | |
#endif // QIMAGEIOHANDLER_H |