cpp/openttd-patchpack/source Files · src/zoom.hpp

Files @ r7596:afd285ff90bb

Branch filter:

Location: cpp/openttd-patchpack/source/src/zoom.hpp

r7596:afd285ff90bb 1.4 KiB text/x-c++hdr Show Annotation Show as Raw Download as Raw

miham

(svn r11123) -Update: WebTranslator2 update to 2007-09-17 12:45:29
afrikaans - 47 fixed, 52 changed by TrueTenacity (99)
brazilian_portuguese - 23 changed by fukumori (23)
bulgarian - 14 fixed by thetitan (14)
catalan - 3 changed by arnaullv (3)
croatian - 6 fixed, 12 changed by knovak (15), tperic (3)
danish - 20 fixed by ThomasA (20)
finnish - 20 fixed by habazi (20)
german - 10 fixed by Timwi (10)
hungarian - 1 fixed by miham (1)
italian - 1 fixed by lorenzodv (1)
japanese - 6 fixed by ickoonite (6)
norwegian_nynorsk - 6 fixed by pollux (6)
piglatin - 20 fixed by adammw (20)
russian - 20 fixed by Smoky555 (20)
slovak - 1 fixed by lengyel (1)
slovenian - 7 fixed by Necrolyte (7)
spanish - 1 changed by Cabu (1)
traditional_chinese - 21 fixed by xbddc (21)

/* $Id$ */

/** @file zoom.hpp */

#ifndef ZOOM_HPP
#define ZOOM_HPP

enum ZoomLevel {
	/* Our possible zoom-levels */
	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;

static inline int ScaleByZoom(int value, ZoomLevel zoom)
{
	if (zoom == ZOOM_LVL_NORMAL) return value;
	int izoom = (int)zoom - (int)ZOOM_LVL_NORMAL;
	return (zoom > ZOOM_LVL_NORMAL) ? value << izoom : (value + (1 << -izoom) - 1) >> -izoom;
}

static inline int UnScaleByZoom(int value, ZoomLevel zoom)
{
	if (zoom == ZOOM_LVL_NORMAL) return value;
	int izoom = (int)zoom - (int)ZOOM_LVL_NORMAL;
	return (zoom > ZOOM_LVL_NORMAL) ? (value + (1 << izoom) - 1) >> izoom : value << -izoom;
}

#endif /* ZOOM_HPP */