unitres.h

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// $Id: unitres.h 751 2006-03-31 15:43:49Z alex $
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 */
// Definition of various units related stuff

#ifndef INC_UNITRES
#define INC_UNITRES

/*---------------------------------------------------------------------------------

    The defines below were calculated using the following facts :

        1 mile = 1.60934 kilometres
        1 mile = 1760 yards

    They define the number of millipoints in each of the default unit types supported by Camelot.

    (MarkN 8/3/94 & 28/6/94)
*/

#define MM_MP_VAL   2834.652715         // Num millipoints in a millimetre
#define CM_MP_VAL   (MM_MP_VAL*10)      // Num millipoints in a centimetre
#define  M_MP_VAL   (CM_MP_VAL*100)     // Num millipoints in a metre
#define KM_MP_VAL   ( M_MP_VAL*1000)    // Num millipoints in a kilometre

#define MP_MP_VAL   1.0                 // Num millipoints in a millipoint (well, it's consistant)
#define PT_MP_VAL   (MP_MP_VAL*1000)    // Num millipoints in a computer point
#define PI_MP_VAL   (PT_MP_VAL*12)      // Num millipoints in a pica
#define IN_MP_VAL   (PI_MP_VAL*6)       // Num millipoints in an inch
#define FT_MP_VAL   (IN_MP_VAL*12)      // Num millipoints in a foot
#define YD_MP_VAL   (FT_MP_VAL*3)       // Num millipoints in a yard
#define MI_MP_VAL   (YD_MP_VAL*1760)    // Num millipoints in a mile
#define PX_MP_VAL   750.0               // Num millipoints in a pixel (1/96 inch)


// The following #defines echo the values defined in the enum specification in unittype.h.
// They are used in the units.ini file to all the units to specified in a more readable and changable way.
//
// It is important that they have the same value as the enums above. 
// (The program won't start up if they don't due to a validity checking function called DocUnitList::CheckUnitTypesValid())

#define UNIT_NOTYPE         -1
#define UNIT_AUTOMATIC      -2
#define UNIT_MILLIMETRES    0
#define UNIT_CENTIMETRES    1
#define UNIT_METRES         2
#define UNIT_INCHES         3
#define UNIT_FEET           4
#define UNIT_YARDS          5
#define UNIT_COMP_POINTS    6
#define UNIT_PICAS          7
#define UNIT_MILLIPOINTS    8
#define UNIT_MILES          9
#define UNIT_KILOMETRES     10
#define UNIT_PIXELS         11

#define UNIT_NUM_DEFAULT_TYPES 255

#endif // INC_UNITRES

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