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/**
* Copyright (C) 2003, Luís 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
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