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Location: cpp/openttd-patchpack/source/src/zoom_func.h - annotation
r24703:138ac240a464
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Update: Translations from eints
estonian: 85 changes by siimsoni
korean: 30 changes by telk5093
portuguese: 24 changes by CheapWebdesign
estonian: 85 changes by siimsoni
korean: 30 changes by telk5093
portuguese: 24 changes by CheapWebdesign
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* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file zoom_func.h Functions related to zooming. */
#ifndef ZOOM_FUNC_H
#define ZOOM_FUNC_H
#include "zoom_type.h"
/**
* Scale by zoom level, usually shift left (when zoom > ZOOM_LVL_NORMAL)
* When shifting right, value is rounded up
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int ScaleByZoom(int value, ZoomLevel zoom)
{
return value << zoom;
}
/**
* Scale by zoom level, usually shift right (when zoom > ZOOM_LVL_NORMAL)
* When shifting right, value is rounded up
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int UnScaleByZoom(int value, ZoomLevel zoom)
{
return (value + (1 << zoom) - 1) >> zoom;
}
/**
* Scale by zoom level, usually shift left (when zoom > ZOOM_LVL_NORMAL)
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int ScaleByZoomLower(int value, ZoomLevel zoom)
{
return value << zoom;
}
/**
* Scale by zoom level, usually shift right (when zoom > ZOOM_LVL_NORMAL)
* @param value value to shift
* @param zoom zoom level to shift to
* @return shifted value
*/
static inline int UnScaleByZoomLower(int value, ZoomLevel zoom)
{
return value >> zoom;
}
/**
* Short-hand to apply GUI zoom level.
* @param value Pixel amount at #ZOOM_LVL_BEGIN (full zoom in).
* @return Pixel amount at #ZOOM_LVL_GUI (current interface size).
*/
static inline int UnScaleGUI(int value)
{
return UnScaleByZoom(value, ZOOM_LVL_GUI);
}
/**
* Scale traditional pixel dimensions to GUI zoom level.
* @param value Pixel amount at #ZOOM_LVL_BASE (traditional "normal" interface size).
* @return Pixel amount at #ZOOM_LVL_GUI (current interface size).
*/
static inline int ScaleGUITrad(int value)
{
return UnScaleGUI(value * ZOOM_LVL_BASE);
}
/**
* Short-hand to apply font zoom level.
* @param value Pixel amount at #ZOOM_LVL_BEGIN (full zoom in).
* @return Pixel amount at #ZOOM_LVL_FONT (current interface size).
*/
static inline int UnScaleFont(int value)
{
return UnScaleByZoom(value, ZOOM_LVL_FONT);
}
/**
* Scale traditional pixel dimensions to Font zoom level.
* @param value Pixel amount at #ZOOM_LVL_BASE (traditional "normal" interface size).
* @return Pixel amount at #ZOOM_LVL_FONT (current interface size).
*/
static inline int ScaleFontTrad(int value)
{
return UnScaleFont(value * ZOOM_LVL_BASE);
}
#endif /* ZOOM_FUNC_H */
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