diff --git a/src/zoom.hpp b/src/zoom.hpp deleted file mode 100644 --- a/src/zoom.hpp +++ /dev/null @@ -1,94 +0,0 @@ -/* $Id$ */ - -/** @file zoom.hpp */ - -#ifndef ZOOM_HPP -#define ZOOM_HPP - -#include "core/enum_type.hpp" - -enum ZoomLevel { - /* Our possible zoom-levels */ - ZOOM_LVL_BEGIN = 0, - ZOOM_LVL_NORMAL = 0, - ZOOM_LVL_OUT_2X, - ZOOM_LVL_OUT_4X, - ZOOM_LVL_OUT_8X, - ZOOM_LVL_END, - - /* Here we define in which zoom viewports are */ - ZOOM_LVL_VIEWPORT = ZOOM_LVL_NORMAL, - ZOOM_LVL_NEWS = ZOOM_LVL_NORMAL, - ZOOM_LVL_INDUSTRY = ZOOM_LVL_OUT_2X, - ZOOM_LVL_TOWN = ZOOM_LVL_OUT_2X, - ZOOM_LVL_AIRCRAFT = ZOOM_LVL_NORMAL, - ZOOM_LVL_SHIP = ZOOM_LVL_NORMAL, - ZOOM_LVL_TRAIN = ZOOM_LVL_NORMAL, - ZOOM_LVL_ROADVEH = ZOOM_LVL_NORMAL, - ZOOM_LVL_WORLD_SCREENSHOT = ZOOM_LVL_NORMAL, - - ZOOM_LVL_DETAIL = ZOOM_LVL_OUT_2X, ///< All zoomlevels below or equal to this, will result in details on the screen, like road-work, ... - - ZOOM_LVL_MIN = ZOOM_LVL_NORMAL, - ZOOM_LVL_MAX = ZOOM_LVL_OUT_8X, -}; - -extern ZoomLevel _saved_scrollpos_zoom; - -DECLARE_POSTFIX_INCREMENT(ZoomLevel) - -/** - * 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) -{ - if (zoom == ZOOM_LVL_NORMAL) return value; - int izoom = zoom - ZOOM_LVL_NORMAL; - return (zoom > ZOOM_LVL_NORMAL) ? value << izoom : (value + (1 << -izoom) - 1) >> -izoom; -} - -/** - * 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) -{ - if (zoom == ZOOM_LVL_NORMAL) return value; - int izoom = zoom - ZOOM_LVL_NORMAL; - return (zoom > ZOOM_LVL_NORMAL) ? (value + (1 << izoom) - 1) >> izoom : value << -izoom; -} - -/** - * 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) -{ - if (zoom == ZOOM_LVL_NORMAL) return value; - int izoom = zoom - ZOOM_LVL_NORMAL; - return (zoom > ZOOM_LVL_NORMAL) ? value << izoom : value >> -izoom; -} - -/** - * 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) -{ - if (zoom == ZOOM_LVL_NORMAL) return value; - int izoom = zoom - ZOOM_LVL_NORMAL; - return (zoom > ZOOM_LVL_NORMAL) ? value >> izoom : value << -izoom; -} - -#endif /* ZOOM_HPP */