CAnimationDataProvider Class Reference

class CAnimationDataProvider : public CBase

Pure virtual base class for data providers.

A data provider takes an animation specification (such as a file), converts it (if needed) into a format recognised by an animator (such as CAnimationFrame objects), and passes it to the animator, via the medium of an animation.

Most animation types take a data provider as an argument during contruction. For more detailed usage instructions, refer to the documentation of the derived classes.

CAnimation

MAnimationDataProviderObserver

Inherits from

CAnimationDataProvider
- CBase

Public Member Functions
TPtrC8	DataType()
IMPORT_C void	SetObserver(MAnimationDataProviderObserver *)
void	StartL()

Protected Member Functions
	CAnimationDataProvider()
IMPORT_C void	CAnimationDataProvider_Reserved1()
IMPORT_C void	CAnimationDataProvider_Reserved2()
IMPORT_C void	SendEventL(TInt)
IMPORT_C void	SendEventL(TInt, TInt)
IMPORT_C void	SendEventL(TInt, TAny *, TInt)

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()

Protected Attributes
TInt	iCAnimationDataProvider_Reserved
MAnimationDataProviderObserver *	iObserver

Constructor & Destructor Documentation

CAnimationDataProvider()

IMPORT_C

CAnimationDataProvider

(

)

[protected]

Constructor

Member Functions Documentation

CAnimationDataProvider_Reserved1()

IMPORT_C void

CAnimationDataProvider_Reserved1

(

)

[protected, virtual]

Reserved for future use

CAnimationDataProvider_Reserved2()

IMPORT_C void

CAnimationDataProvider_Reserved2

(

)

[protected, virtual]

Reserved for future use

DataType()

TPtrC8

DataType

(

)

[pure virtual]

Called from the animation to obtain the type of data to expect. An 8 bit identifier string

SendEventL(TInt)

IMPORT_C void

SendEventL

(

TInt

aEvent

)

[protected]

Sends an event with no associated data to the observer.

See SendEventL(TInt,TAny*,TInt) for further details.

Parameters

TInt aEvent

The event to pass. This may be a member of TAnimationEvent, or a user defined value. User defined events must be greater than EAnimationReservedEvents

SendEventL(TInt, TInt)

IMPORT_C void	SendEventL	(	TInt	aEvent,
			TInt	aData
		)	[protected]

Sends an event with a single integer data item to the observer.

See SendEventL(TInt,TAny*,TInt) for further details.

Parameters

TInt aEvent	The event to pass. This may be a member of TAnimationEvent, or a user defined value. User defined events must be greater than EAnimationReservedEvents
TInt aData	A pointer to the data to send

SendEventL(TInt, TAny *, TInt)

IMPORT_C void	SendEventL	(	TInt	aEvent,
			TAny *	aData,
			TInt	aDataSize
		)	[protected]

Sends an event with an arbitrary size data item to the observer.

TAnimationEvent

Parameters

TInt aEvent	The event to pass. This may be a member of TAnimationEvent, or a user defined value. User defined events must be greater than EAnimationReservedEvents
TAny * aData	A pointer to the data to send
TInt aDataSize	The size of the data item passed in aData

SetObserver(MAnimationDataProviderObserver *)

IMPORT_C void

SetObserver

(

MAnimationDataProviderObserver *

aObserver

)

Sets the destination for data from this data provider.

You do not need to call this function unless you are writing a new animation type.

Parameters

MAnimationDataProviderObserver * aObserver

The destination to send data to. Usually an animation class.

StartL()

void

StartL

(

)

[pure virtual]

Called from the animation when it is ready to begin receiving data.

Member Data Documentation

TInt iCAnimationDataProvider_Reserved

TInt

iCAnimationDataProvider_Reserved

[protected]

Reserved for future use

MAnimationDataProviderObserver * iObserver

MAnimationDataProviderObserver *

iObserver

[protected]

The destination to send data to. Usually an animation class.