qtextboundaryfinder.h

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00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
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00041 
00042 #ifndef QTEXTBOUNDARYFINDER_H
00043 #define QTEXTBOUNDARYFINDER_H
00044 
00045 #include <QtCore/qchar.h>
00046 #include <QtCore/qstring.h>
00047 
00048 QT_BEGIN_HEADER
00049 
00050 QT_BEGIN_NAMESPACE
00051 
00052 QT_MODULE(Core)
00053 
00054 class QTextBoundaryFinderPrivate;
00055 
00056 class Q_CORE_EXPORT QTextBoundaryFinder
00057 {
00058 public:
00059     QTextBoundaryFinder();
00060     QTextBoundaryFinder(const QTextBoundaryFinder &other);
00061     QTextBoundaryFinder &operator=(const QTextBoundaryFinder &other);
00062     ~QTextBoundaryFinder();
00063 
00064     enum BoundaryType {
00065         Grapheme,
00066         Word,
00067         Line,
00068         Sentence
00069     };
00070 
00071     enum BoundaryReason {
00072         NotAtBoundary = 0,
00073         StartWord = 1,
00074         EndWord = 2
00075         //Hyphen
00076     };
00077     Q_DECLARE_FLAGS( BoundaryReasons, BoundaryReason )
00078 
00079     QTextBoundaryFinder(BoundaryType type, const QString &string);
00080     QTextBoundaryFinder(BoundaryType type, const QChar *chars, int length, unsigned char *buffer = 0, int bufferSize = 0);
00081 
00082     inline bool isValid() const { return d; }
00083 
00084     inline BoundaryType type() const { return t; }
00085     QString string() const;
00086 
00087     void toStart();
00088     void toEnd();
00089     int position() const;
00090     void setPosition(int position);
00091 
00092     int toNextBoundary();
00093     int toPreviousBoundary();
00094 
00095     bool isAtBoundary() const;
00096     BoundaryReasons boundaryReasons() const;
00097 
00098 private:
00099     BoundaryType t;
00100     QString s;
00101     const QChar *chars;
00102     int length;
00103     int pos;
00104     uint freePrivate : 1;
00105     uint unused : 31;
00106     QTextBoundaryFinderPrivate *d;
00107 };
00108 
00109 QT_END_NAMESPACE
00110 
00111 QT_END_HEADER
00112 
00113 #endif
00114