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/* This file is part of the KDE project
Copyright (C) 2005 Johannes Schaub <litb_devel@web.de>
Copyright (C) 2011 Arjen Hiemstra <ahiemstra@heimr.nl>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _KOZOOMMODE_H_
#define _KOZOOMMODE_H_
#include <QString>
#include <QFlags>
#include "kowidgets_export.h"
/**
* The ZoomMode container
*/
class KOWIDGETS_EXPORT KoZoomMode
{
public:
enum Mode
{
ZOOM_CONSTANT = 0, ///< zoom x %
ZOOM_WIDTH = 1, ///< zoom pagewidth
ZOOM_PAGE = 2, ///< zoom to pagesize
ZOOM_PIXELS = 4, ///< zoom to actual pixels
ZOOM_TEXT = 8 ///< zoom to actual pixels
};
Q_DECLARE_FLAGS(Modes, Mode)
/// \param mode the mode name
/// \return the to Mode converted QString \c mode
static Mode toMode(const QString& mode);
/// \return the to QString converted and translated Mode \c mode
static QString toString(Mode mode);
/// \param mode the mode name
/// \return true if \c mode isn't dependent on windowsize
static bool isConstant(const QString& mode)
{ return toMode(mode) == ZOOM_CONSTANT; }
/**
* Return the minimum zoom possible for documents.
*
* \return The minimum zoom possible.
*/
static qreal minimumZoom();
/**
* Return the maximum zoom possible for documents.
*
* \return The maximum zoom possible.
*/
static qreal maximumZoom();
/**
* Clamp the zoom value so that mimimumZoom <= zoom <= maximumZoom.
*
* \param zoom The value to clamp.
*
* \return minimumZoom if zoom < minimumZoom, maximumZoom if zoom >
* maximumZoom, zoom if otherwise.
*/
static qreal clampZoom(qreal zoom);
/**
* Set the minimum zoom possible for documents.
*
* Note that after calling this, any existing KoZoomAction instances
* should be recreated.
*
* \param zoom The minimum zoom to use.
*/
static void setMinimumZoom(qreal zoom);
/**
* Set the maximum zoom possible for documents.
*
* Note that after calling this, any existing KoZoomAction instances
* should be recreated.
*
* \param zoom The maximum zoom to use.
*/
static void setMaximumZoom(qreal zoom);
private:
static const char * const modes[];
static qreal minimumZoomValue;
static qreal maximumZoomValue;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(KoZoomMode::Modes)
#endif
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