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92 lines
2.6 KiB
92 lines
2.6 KiB
/*************************************************************************** |
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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 "okularcore_export.h" |
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#include "area.h" |
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class QRect; |
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class QImage; |
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class 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 OKULARCORE_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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