Collapse all Symbian^3 Product Developer Library

CVFTracker Class Reference

class CVFTracker : public CBase

This class provides functions to register the image that has got from viewfinder and checks the appropriate time to capture that image.

Inherits from

CVFTracker
- CBase

Public Member Functions
	~CVFTracker()
IMPORT_C TAny *	Extension(TUid)
IMPORT_C void	InitializeL(const TSize &)
IMPORT_C TBool	IsTimeToCapture(TDirection &)
IMPORT_C TBool	IsTimeToCapture(TDirection &, TInt)
IMPORT_C CVFTracker *	NewL()
IMPORT_C void	RegisterImageL(const CFbsBitmap &, CPanoramaTransform &)
IMPORT_C void	RegisterImageL(const CImageFrame &, CPanoramaTransform &)
IMPORT_C void	Reset()

Private Member Functions
	CVFTracker()
void	ConstructL()

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Private Attributes
CVFTrackerImpl *	iVFTrackImpl

Constructor & Destructor Documentation

CVFTracker()

CVFTracker

(

)

[private]

~CVFTracker()

IMPORT_C

~CVFTracker

(

)

Member Functions Documentation

ConstructL()

void

ConstructL

(

)

[private]

Extension(TUid)

IMPORT_C TAny *

Extension

(

TUid

aExtension

)

Retrieves a non-standard extension on the VFTracker

Parameters

TUid aExtension

The UID of the extension to be retrieved

InitializeL(const TSize &)

IMPORT_C void

InitializeL

(

const TSize &

aSize

)

Initialises the dimensions of the image on the plugin and creates the VFTracker object.

Parameters

const TSize & aSize

Dimensions of the image.

IsTimeToCapture(TDirection &)

IMPORT_C TBool

IsTimeToCapture

(

TDirection &

aDirection

)

const

Determines from a PanoramaTransform if it is time to capture a new image.

Parameters

TDirection & aDirection

The type of panorama being created.

IsTimeToCapture(TDirection &, TInt)

IMPORT_C TBool	IsTimeToCapture	(	TDirection &	aDirection,
			TInt	aOverlap
		)	const

Determines from a PanoramaTransform if it is time to capture a new image.

Parameters

TDirection & aDirection	The type of panorama being created.
TInt aOverlap	Desired overlap in the panorama image.

NewL()

IMPORT_C CVFTracker *

NewL

(

)

[static]

Constructs a new VFTracker object.

A leave occurs if there is insufficient memory available.

RegisterImageL(const CFbsBitmap &, CPanoramaTransform &)

IMPORT_C void	RegisterImageL	(	const CFbsBitmap &	aBitmap,
			CPanoramaTransform &	aPanTrans
		)

Performs overlapping calculations from viewfinder image. Pass all viewfinder images to this function to find out when its time to capture a new image.

Parameters

const CFbsBitmap & aBitmap	A bitmap that needs to be registered
CPanoramaTransform & aPanTrans	A panorama transform object.

RegisterImageL(const CImageFrame &, CPanoramaTransform &)

IMPORT_C void	RegisterImageL	(	const CImageFrame &	aImageFrame,
			CPanoramaTransform &	aPanTrans
		)

Performs overlapping calculations from viewfinder image. Pass all viewfinder images to this function to find out when its time to capture a new image.

Parameters

const CImageFrame & aImageFrame	A imageframe object.
CPanoramaTransform & aPanTrans	A panorama transform object.

Reset()

IMPORT_C void

Reset

(

)

Resets the transform return for the next RegisterImageL().

Member Data Documentation

CVFTrackerImpl * iVFTrackImpl

CVFTrackerImpl *

iVFTrackImpl

[private]