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+// This defines the interface to the QextScintillaLexerDiff class.
+//
+// Copyright (c) 2006
+// 	Riverbank Computing Limited <info@riverbankcomputing.co.uk>
+// 
+// This file is part of QScintilla.
+// 
+// This copy of QScintilla 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, or (at your option) any
+// later version.
+// 
+// QScintilla is supplied 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
+// QScintilla; see the file LICENSE.  If not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifndef QEXTSCINTILLALEXERDIFF_H
+#define QEXTSCINTILLALEXERDIFF_H
+
+
+#include <qobject.h>
+
+#include <qextscintillaglobal.h>
+#include <qextscintillalexer.h>
+
+
+//! \brief The QextScintillaLexerDiff class encapsulates the Scintilla Diff
+//! lexer.
+class QEXTSCINTILLA_EXPORT QextScintillaLexerDiff : public QextScintillaLexer
+{
+	Q_OBJECT
+
+public:
+	//! This enum defines the meanings of the different styles used by the
+	//! Diff lexer.
+	enum {
+		//! The default.
+		Default = 0,
+
+		//! A comment.
+		Comment = 1,
+
+		//! A command.
+		Command = 2,
+
+		//! A header.
+		Header = 3,
+
+		//! A position.
+		Position = 4,
+
+		//! A removed line.
+		LineRemoved = 5,
+
+		//! An added line.
+		LineAdded = 6
+	};
+
+	//! Construct a QextScintillaLexerDiff with parent \a parent and name
+	//! \a name.  \a parent is typically the QextScintilla instance.
+	QextScintillaLexerDiff(QObject *parent = 0,const char *name = 0);
+
+	//! Destroys the QextScintillaLexerDiff instance.
+	virtual ~QextScintillaLexerDiff();
+
+	//! Returns the name of the language.
+	const char *language() const;
+
+	//! Returns the name of the lexer.  Some lexers support a number of
+	//! languages.
+	const char *lexer() const;
+
+	//! \internal Returns the string of characters that comprise a word.
+	const char *wordCharacters() const;
+
+	//! Returns the foreground colour of the text for style number
+	//! \a style.
+	//!
+	//! \sa paper()
+	QColor color(int style) const;
+
+	//! Returns the descriptive name for style number \a style.  If the
+	//! style is invalid for this language then QString::null is returned.
+	//! This is intended to be used in user preference dialogs.
+	QString description(int style) const;
+
+private:
+#if defined(Q_DISABLE_COPY)
+	QextScintillaLexerDiff(const QextScintillaLexerDiff &);
+	QextScintillaLexerDiff &operator=(const QextScintillaLexerDiff &);
+#endif
+};
+
+#endif