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diff --git a/kghostview/displayoptions.h b/kghostview/displayoptions.h
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+++ b/kghostview/displayoptions.h
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+/**
+ * Copyright (C) 2003, Lu�s Pedro Coelho
+ *
+ * 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 DISPLAYOPTIONS_H
+#define DISPLAYOPTIONS_H
+#include <qstring.h>
+#include <qvaluelist.h>
+#include "dscparse_adapter.h"
+#include <kdemacros.h>
+class KCmdLineArgs;
+class KConfig;
+
+class KDE_EXPORT DisplayOptions 
+{
+	public:
+	DisplayOptions();
+
+	// default generated DisplayOptions(const DisplayOptions&); 
+	// default generated ~DisplayOptions(); 
+	// default generated DisplayOptions& operator = (const DisplayOptions&); 
+
+	void reset() { *this = DisplayOptions(); }
+
+	void restoreOverrideOrientation() { setOverrideOrientation( CDSC_ORIENT_UNKNOWN ); }
+	void setOverrideOrientation(CDSC_ORIENTATION_ENUM e)  { _overrideOrientation = e; }
+	CDSC_ORIENTATION_ENUM overrideOrientation() const { return _overrideOrientation; }
+
+	void restoreOverridePageMedia() { _overridePageMedia = QString::null; }
+	void setOverridePageMedia(const QString& newMedia) { _overridePageMedia = newMedia; }
+	const QString& overridePageMedia() const { return _overridePageMedia; }
+
+	/** 
+	 * The current page.
+	 * Note that the pages here are 0-based, although the user should see 1-based pages.
+	 *
+	 * In parsing cmdline-args, we transform --page=1 into setPage( 0 );
+	 */
+	int page() const { return _page; }
+	void setPage( int newPage ) { _page = newPage; }
+
+	double magnification() const;
+	void setMagnification( double );
+	/** 
+	 * Goes to the next degree of magnification if possible. If we cannot zoom in any more, it returns false,
+	 * leaving the magnification untouched.
+	 */
+	bool zoomIn();
+	bool zoomOut();
+
+	bool canZoomIn() const;
+	bool canZoomOut() const;
+
+	/** 
+	 * Parses command line options.
+	 */
+	static DisplayOptions parse ( KCmdLineArgs * );
+	/**
+	 * Transforms the object in a string representation.
+	 * Useful for storing in config files, for example.
+	 *
+	 * \return string representation or null on error.
+	 *
+	 * \sa fromString
+	 */
+	static QString toString( const DisplayOptions& );
+	/**
+	 * Reads the display options from a string formatted by toString.
+	 *
+	 * \return true if the convertion succeeded.
+	 */
+	static bool fromString( DisplayOptions&, const QString& );
+
+	/**
+	 * Returns a list of values that normally we can get through
+	 * zoomIn() & zoomOut()
+	 */
+	static QValueList<double> normalMagnificationValues();
+
+	private:
+
+	unsigned closestIndex() const;
+
+	CDSC_ORIENTATION_ENUM _overrideOrientation;
+	QString               _overridePageMedia;
+	int                   _page;
+	double                _magnification;
+};
+
+inline
+DisplayOptions::DisplayOptions()
+	:_overrideOrientation( CDSC_ORIENT_UNKNOWN ),
+	 _overridePageMedia ( QString::null ),
+	 _page( 0 )
+{
+	setMagnification( 1.0 );
+}
+
+#endif // DISPLAYOPTIONS_H