Qt 4.8
qimagereader.h
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41 
42 #ifndef QIMAGEREADER_H
43 #define QIMAGEREADER_H
44 
45 #include <QtCore/qbytearray.h>
46 #include <QtGui/qimage.h>
47 #include <QtGui/qimageiohandler.h>
48 
50 
52 
53 QT_MODULE(Gui)
54 
55 class QColor;
56 class QIODevice;
57 class QRect;
58 class QSize;
59 class QStringList;
60 
63 {
64 public:
70  InvalidDataError
71  };
72 
73  QImageReader();
74  explicit QImageReader(QIODevice *device, const QByteArray &format = QByteArray());
75  explicit QImageReader(const QString &fileName, const QByteArray &format = QByteArray());
76  ~QImageReader();
77 
78  void setFormat(const QByteArray &format);
79  QByteArray format() const;
80 
81  void setAutoDetectImageFormat(bool enabled);
82  bool autoDetectImageFormat() const;
83 
84  void setDecideFormatFromContent(bool ignored);
85  bool decideFormatFromContent() const;
86 
87  void setDevice(QIODevice *device);
88  QIODevice *device() const;
89 
90  void setFileName(const QString &fileName);
91  QString fileName() const;
92 
93  QSize size() const;
94 
95  QImage::Format imageFormat() const;
96 
97  QStringList textKeys() const;
98  QString text(const QString &key) const;
99 
100  void setClipRect(const QRect &rect);
101  QRect clipRect() const;
102 
103  void setScaledSize(const QSize &size);
104  QSize scaledSize() const;
105 
106  void setQuality(int quality);
107  int quality() const;
108 
109  void setScaledClipRect(const QRect &rect);
110  QRect scaledClipRect() const;
111 
112  void setBackgroundColor(const QColor &color);
113  QColor backgroundColor() const;
114 
115  bool supportsAnimation() const;
116 
117  bool canRead() const;
118  QImage read();
119  bool read(QImage *image);
120 
121  bool jumpToNextImage();
122  bool jumpToImage(int imageNumber);
123  int loopCount() const;
124  int imageCount() const;
125  int nextImageDelay() const;
126  int currentImageNumber() const;
127  QRect currentImageRect() const;
128 
129  ImageReaderError error() const;
130  QString errorString() const;
131 
132  bool supportsOption(QImageIOHandler::ImageOption option) const;
133 
134  static QByteArray imageFormat(const QString &fileName);
135  static QByteArray imageFormat(QIODevice *device);
136  static QList<QByteArray> supportedImageFormats();
137 
138 private:
141 };
142 
144 
146 
147 #endif // QIMAGEREADER_H
The QColor class provides colors based on RGB, HSV or CMYK values.
Definition: qcolor.h:67
double d
Definition: qnumeric_p.h:62
Format
The following image formats are available in Qt.
Definition: qimage.h:91
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
#define error(msg)
The QByteArray class provides an array of bytes.
Definition: qbytearray.h:135
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
The QString class provides a Unicode character string.
Definition: qstring.h:83
Q_GUI_EXPORT QString errorString(EGLint code=eglGetError())
Definition: qegl.cpp:743
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
ImageOption
This enum describes the different options supported by QImageIOHandler.
The QStringList class provides a list of strings.
Definition: qstringlist.h:66
The QImage class provides a hardware-independent image representation that allows direct access to th...
Definition: qimage.h:87
handler setDevice(device)
The QImageReader class provides a format independent interface for reading images from files or other...
Definition: qimagereader.h:62
int key
ImageReaderError
This enum describes the different types of errors that can occur when reading images with QImageReade...
Definition: qimagereader.h:65
The QRect class defines a rectangle in the plane using integer precision.
Definition: qrect.h:58
The QSize class defines the size of a two-dimensional object using integer point precision.
Definition: qsize.h:53
The QIODevice class is the base interface class of all I/O devices in Qt.
Definition: qiodevice.h:66
#define QT_END_HEADER
Definition: qglobal.h:137
static QString fileName(const QString &fileUrl)
#define enabled
#define text
Definition: qobjectdefs.h:80