okular/core/utils.h
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/***************************************************************************
* Copyright (C) 2006 by Luigi Toscano <luigi.toscano@tiscali.it> *
* *
* 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. *
***************************************************************************/
#ifndef _OKULAR_UTILS_H_
#define _OKULAR_UTILS_H_
#include "area.h"
#include "okularcore_export.h"
class QRect;
class QImage;
class QWidget;
namespace Okular
{
/**
* @short General utility functions.
*
* This class contains some static functions of general utility.
*/
class OKULARCORE_EXPORT Utils
{
public:
/**
* Rotate the rect \p source in the area \p width x \p height with the
* specified \p orientation .
*/
static QRect rotateRect(const QRect &source, int width, int height, int orientation); // TODO remove the & when we do a BIC change elsewhere
/**
* Return the real DPI of the display containing given widget
*
* On X11, it can indicate the real horizontal DPI value without any Xrdb
* setting. Otherwise, returns the same as realDpiX/Y(),
*
* @since 0.19 (KDE 4.13)
*/
static QSizeF realDpi(QWidget *widgetOnScreen);
/**
* Compute the smallest rectangle that contains all non-white pixels in image),
* in normalized [0,1] coordinates.
*
* @since 0.7 (KDE 4.1)
*/
static NormalizedRect imageBoundingBox(const QImage *image);
};
}
#endif
/* kate: replace-tabs on; indent-width 4; */