Qt 4.8
qppmhandler_p.h
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41 
42 #ifndef QPPMHANDLER_P_H
43 #define QPPMHANDLER_P_H
44 
45 //
46 // W A R N I N G
47 // -------------
48 //
49 // This file is not part of the Qt API. It exists for the convenience
50 // of the QLibrary class. This header file may change from
51 // version to version without notice, or even be removed.
52 //
53 // We mean it.
54 //
55 
56 #include "QtGui/qimageiohandler.h"
57 
58 #ifndef QT_NO_IMAGEFORMAT_PPM
59 
61 
62 class QByteArray;
64 {
65 public:
66  QPpmHandler();
67  bool canRead() const;
68  bool read(QImage *image);
69  bool write(const QImage &image);
70 
71  QByteArray name() const;
72 
73  static bool canRead(QIODevice *device, QByteArray *subType = 0);
74 
76  void setOption(ImageOption option, const QVariant &value);
77  bool supportsOption(ImageOption option) const;
78 
79 private:
80  bool readHeader();
81  enum State {
85  };
87  char type;
88  int width;
89  int height;
90  int mcc;
92 };
93 
95 
96 #endif // QT_NO_IMAGEFORMAT_PPM
97 
98 #endif // QPPMHANDLER_P_H
The QVariant class acts like a union for the most common Qt data types.
Definition: qvariant.h:92
bool supportsOption(ImageOption option) const
Returns true if the QImageIOHandler supports the option option; otherwise returns false...
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
The QByteArray class provides an array of bytes.
Definition: qbytearray.h:135
bool readHeader()
QVariant option(ImageOption option) const
Returns the value assigned to option as a QVariant.
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
QByteArray name() const
Use format() instead.
ImageOption
This enum describes the different options supported by QImageIOHandler.
The QImage class provides a hardware-independent image representation that allows direct access to th...
Definition: qimage.h:87
bool write(const QImage &image)
Writes the image image to the assigned device.
The State element defines configurations of objects and properties.
The QImageIOHandler class defines the common image I/O interface for all image formats in Qt...
bool read(QImage *image)
Read an image from the device, and stores it in image.
QIODevice * device() const
Returns the device currently assigned to the QImageIOHandler.
void setOption(ImageOption option, const QVariant &value)
Sets the option option with the value value.
QByteArray subType
Definition: qppmhandler_p.h:91
The QIODevice class is the base interface class of all I/O devices in Qt.
Definition: qiodevice.h:66
bool canRead() const
Returns true if an image can be read from the device (i.