LandmarksUtils Class Reference


Static Public Member Functions
static void	FloatToDesL (TReal aFloat, TDes &aDes, TRealFormat aRealFormat)
static void	LatLongToDes (TReal aFloat, TDes &aDes)
static void	LatLongFloatToDegMinSecDesL (TReal aLatLong, TDes &aDes)
static void	Panic (TInt aReason)
Classes
struct	SDegMinSec
	Internal struct for LatLongFloatToDegMinSecDesL. More...

Member Function Documentation

void LandmarksUtils::FloatToDesL	(	TReal	aFloat,
		TDes &	aDes,
		TRealFormat	aRealFormat
	)	`[static]`

Converts a float to a descriptor. Handles the case when the float is NaN

Parameters:

	aFloat	the source float
	aDes	the target descriptor
	aRealFormat	Format used for real value conversion to text

Definition at line 29 of file LandmarksUtils.cpp.

00030     {
00031     if (Math::IsNaN(aFloat))
00032         {
00033         aDes = KNullDesC;
00034         }
00035     else
00036         {
00037         User::LeaveIfError(aDes.Num(aFloat, aRealFormat));
00038         }
00039     }

void LandmarksUtils::LatLongToDes	(	TReal	aFloat,
		TDes &	aDes
	)	`[static]`

Converts a float lat/long to a descriptor. Handles the case when the float is NaN

Parameters:

	aFloat	the source float
	aDes	the target descriptor

Definition at line 45 of file LandmarksUtils.cpp.

00046     {
00047     if (Math::IsNaN(aFloat))
00048         {
00049         aDes = KNullDesC;
00050         }
00051     else
00052         {
00053         aDes.Format(KLatLongFormat, aFloat);
00054         }
00055     }

void LandmarksUtils::LatLongFloatToDegMinSecDesL	(	TReal	aLatLong,
		TDes &	aDes
	)	`[static]`

Converts a latitude or longitude in float format to a descriptor containing degrees, minutes and seconds.

Parameters:

	aLatLong	the source float
	aDes	the target descriptor (degrees, minutes and seconds)

Definition at line 61 of file LandmarksUtils.cpp.

References LandmarksUtils::SDegMinSec::iDegrees, LandmarksUtils::SDegMinSec::iMinutes, and LandmarksUtils::SDegMinSec::iSeconds.

00062     {
00063     if (!Math::IsNaN(aLatLong))
00064         {
00065         // Convert to deg min sec
00066         SDegMinSec degMinSec;
00067 
00068         // Fetch degrees
00069         User::LeaveIfError(Math::Int(degMinSec.iDegrees, Abs(aLatLong)));
00070 
00071         // Fetch minutes
00072         TReal minutes = (Abs(aLatLong) - degMinSec.iDegrees) * KMinutesPerDegree;
00073         User::LeaveIfError(Math::Int(degMinSec.iMinutes, minutes));
00074 
00075         // Fetch seconds
00076         degMinSec.iSeconds = 
00077             ((minutes - degMinSec.iMinutes) * KSecondsPerMinute);
00078 
00079         // Check if seconds is going to be rounded to 60
00080         const TReal KMaxSeconds = 59.999;
00081         if (degMinSec.iSeconds > KMaxSeconds)
00082             {
00083             degMinSec.iSeconds = 0;
00084             degMinSec.iMinutes++;
00085             if (degMinSec.iMinutes == KMinutesPerDegree)
00086                 {
00087                 degMinSec.iMinutes = 0;
00088                 degMinSec.iDegrees++;
00089                 // We do not need to check if degress > 90 or if degrees > 180.
00090                 // Landmarks FW takes care of that.
00091                 }
00092             }
00093 
00094         // Format output descriptor
00095         if (aLatLong >= 0)
00096             {
00097             aDes.Format(KListBoxLatLongFormat, &KPositiveSign, 
00098                 degMinSec.iDegrees, KDegreeSign, degMinSec.iMinutes, 
00099                 degMinSec.iSeconds);
00100             }
00101         else
00102             {
00103             aDes.Format(KListBoxLatLongFormat, &KNegativeSign, 
00104                 Abs(degMinSec.iDegrees), KDegreeSign, Abs(degMinSec.iMinutes), 
00105                 Abs(degMinSec.iSeconds));
00106             }
00107         }
00108     else
00109         {
00110         aDes.Zero();
00111         }
00112     }

void LandmarksUtils::Panic ( TInt aReason ) [static]

Panics the application due to some programming error

Parameters:

aReason

The panic number or error code

Definition at line 118 of file LandmarksUtils.cpp.

00119     {
00120     _LIT(KPanic, "LmRefApp bug");
00121     User::Panic(KPanic, aReason);
00122     }

LandmarksUtils Class Reference

Static Public Member Functions

Classes

Detailed Description

Member Function Documentation