/usr/include/libtomahawk/utils/DpiScaler.h is in libtomahawk-dev 0.8.4+dfsg1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | /* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
*
* Copyright 2013, Teo Mrnjavac <teo@kde.org>
*
* Tomahawk 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 3 of the License, or
* (at your option) any later version.
*
* Tomahawk 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 Tomahawk. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DPISCALER_H
#define DPISCALER_H
#include "DllMacro.h"
#include <QPaintDevice>
#include <QMargins>
#include <QSize>
namespace TomahawkUtils
{
/**
* @brief The DpiScaler class provides some convenience methods to recompute fixed pixel sizes
* into values suitable for different environment DPI settings.
* Usage:
* class Foo : public QWidget, private TomahawkUtils::DpiScaler {...};
*/
class DLLEXPORT DpiScaler
{
public:
DpiScaler( const QPaintDevice* that );
QSize scaled( int w, int h ) const;
QSize scaled( const QSize& size ) const;
QMargins scaled( int left, int top, int right, int bottom ) const;
QMargins scaled( const QMargins& margins ) const;
int scaledX( int x ) const;
int scaledY( int y ) const;
// convenience one-shot methods, usable without composing or private-inheriting DpiScaler
static QSize scaled( const QPaintDevice* pd, int w, int h );
static QSize scaled( const QPaintDevice* pd, const QSize& size );
static QMargins scaled( const QPaintDevice* pd, int left, int top, int right, int bottom );
static QMargins scaled( const QPaintDevice* pd, const QMargins& margins );
static int scaledX( const QPaintDevice* pd, int x );
static int scaledY( const QPaintDevice* pd, int y );
private:
inline static qreal ratioX( const QPaintDevice* pd );
inline static qreal ratioY( const QPaintDevice* pd );
inline static qreal ratioFromFontHeight();
qreal m_ratioX;
qreal m_ratioY;
const QPaintDevice* that;
static const qreal s_baseDpi;
};
}
#endif // DPISCALER_H
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