1

/* $Id$ */

     2

     3

/** @file zoom.hpp */

     4

     5

#ifndef ZOOM_HPP

     6

#define ZOOM_HPP

     7

     8

enum ZoomLevel {

     9

	/* Our possible zoom-levels */

    10

	ZOOM_LVL_NORMAL = 0,

    11

	ZOOM_LVL_OUT_2X,

    12

	ZOOM_LVL_OUT_4X,

    13

	ZOOM_LVL_OUT_8X,

    14

	ZOOM_LVL_OUT_16X,

    15

	ZOOM_LVL_END,

    16

    17

	/* Here we define in which zoom viewports are */

    18

	ZOOM_LVL_VIEWPORT = ZOOM_LVL_NORMAL,

    19

	ZOOM_LVL_NEWS     = ZOOM_LVL_NORMAL,

    20

	ZOOM_LVL_INDUSTRY = ZOOM_LVL_OUT_2X,

    21

	ZOOM_LVL_TOWN     = ZOOM_LVL_OUT_2X,

    22

	ZOOM_LVL_AIRCRAFT = ZOOM_LVL_NORMAL,

    23

	ZOOM_LVL_SHIP     = ZOOM_LVL_NORMAL,

    24

	ZOOM_LVL_TRAIN    = ZOOM_LVL_NORMAL,

    25

	ZOOM_LVL_ROADVEH  = ZOOM_LVL_NORMAL,

    26

	ZOOM_LVL_WORLD_SCREENSHOT = ZOOM_LVL_NORMAL,

    27

    28

	ZOOM_LVL_DETAIL   = ZOOM_LVL_OUT_2X, //! All zoomlevels below or equal to this, will result in details on the screen, like road-work, ...

    29

    30

	ZOOM_LVL_MIN      = ZOOM_LVL_NORMAL,

    31

	ZOOM_LVL_MAX      = ZOOM_LVL_OUT_16X,

    32

};

    33

    34

extern ZoomLevel _saved_scrollpos_zoom;

    35

    36

static inline int ScaleByZoom(int value, ZoomLevel zoom)

    37

{

    38

	if (zoom == ZOOM_LVL_NORMAL) return value;

    39

	int izoom = (int)zoom - (int)ZOOM_LVL_NORMAL;

    41

}

    42

    43

static inline int UnScaleByZoom(int value, ZoomLevel zoom)

    44

{

    45

	if (zoom == ZOOM_LVL_NORMAL) return value;

    46

	int izoom = (int)zoom - (int)ZOOM_LVL_NORMAL;

    48

}

    49

    50

#endif /* ZOOM_HPP */