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diff --git a/khexedit/hexvalidator.h b/khexedit/hexvalidator.h
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+/*
+ * khexedit - Versatile hex editor
+ * Copyright (C) 1999 Espen Sand, espensa@online.no
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef _HEX_VALIDATOR_H_
+#define _HEX_VALIDATOR_H_
+
+#include <qvalidator.h>
+
+class CHexValidator: public QValidator
+{
+ Q_OBJECT
+
+ public:
+ enum EState
+ {
+ hexadecimal = 0,
+ decimal,
+ octal,
+ binary,
+ regularText
+ };
+
+ public:
+ CHexValidator( QWidget *parent, EState state, const char *name = 0 );
+ ~CHexValidator( void );
+ QValidator::State validate( QString &string, int &pos ) const;
+ void setState( EState state );
+ void convert( QByteArray &dest, const QString &src );
+ void format( QString &dest, const QByteArray &src );
+
+ private:
+ /**
+ * Returns a string that is at least as long as @p destLen number of characters,
+ * by adding zeroes to the left as necessary.
+ *
+ * e.g. zeroExtend( "32", 3 ) => "032"
+ */
+ QString zeroExtend( const QString &src, unsigned destLen ) const;
+
+ EState mState;
+
+
+};
+
+
+#endif