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92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
/***************************************************************************
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* Copyright (C) 2006 by Luigi Toscano <luigi.toscano@tiscali.it> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#ifndef _OKULAR_UTILS_H_
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#define _OKULAR_UTILS_H_
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#include "okular_export.h"
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#include "area.h"
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#include <QRect>
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#include <QImage>
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#include <QWidget>
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namespace Okular
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{
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/**
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* @short General utility functions.
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*
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* This class contains some static functions of general utility.
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*/
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class OKULAR_EXPORT Utils
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{
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public:
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/**
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* Rotate the rect \p source in the area \p width x \p height with the
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* specified \p orientation .
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*/
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static QRect rotateRect( const QRect & source, int width, int height, int orientation );
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/**
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* Return the horizontal DPI of the main display
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*/
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static double dpiX();
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/**
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* Return the vertical DPI of the main display
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*/
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static double dpiY();
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/**
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* Return the real horizontal DPI of the main display.
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*
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* On X11, it can indicate the real horizontal DPI value without any Xrdb
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* setting. Otherwise, returns the same as dpiX(),
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*
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* @since 0.9 (KDE 4.3)
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* @deprecated Can not work with multi-monitor configurations
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*/
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static double realDpiX();
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/**
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* Return the real vertical DPI of the main display
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*
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* On X11, it can indicate the real horizontal DPI value without any Xrdb
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* setting. Otherwise, returns the same as dpiX(),
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*
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* @since 0.9 (KDE 4.3)
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* @deprecated Can not work with multi-monitor configurations
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*/
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static double realDpiY();
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/**
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* Return the real DPI of the display containing given widget
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*
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* On X11, it can indicate the real horizontal DPI value without any Xrdb
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* setting. Otherwise, returns the same as realDpiX/Y(),
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*
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* @since 0.19 (KDE 4.13)
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*/
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static QSizeF realDpi(QWidget* widgetOnScreen);
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/**
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* Compute the smallest rectangle that contains all non-white pixels in image),
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* in normalized [0,1] coordinates.
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*
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* @since 0.7 (KDE 4.1)
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*/
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static NormalizedRect imageBoundingBox( const QImage* image );
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};
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}
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#endif
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/* kate: replace-tabs on; indent-width 4; */
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