| class CMdaImageUtility : public CActive |
7.0s - Replaced by Image Conversion library - no direct equivalent
Defines the public interface to image conversion.
This class has been deprecated in 7.0s, it's functionality is now part of the Image Converter Library. For more information see CImageEncoder and CImageDecoder.
Clients of the concrete conversion classes call the functions provided by this interface to perform the conversion. The implementation of these functions is provided either by the concrete conversion classes themselves or by private implementation classes.
5.0
CImageEncoder
CImageDecoder
| Public Member Functions | |
|---|---|
| ~CMdaImageUtility() | |
| void | CancelConvertL() |
| IMPORT_C void | Close() |
| void | ConvertL(CFbsBitmap &, TInt) |
| void | ConvertL(CFbsBitmap &, CFbsBitmap &, TInt) |
| IMPORT_C TInt | FrameCount() |
| IMPORT_C void | FrameInfo(TInt, TFrameInfo &) |
| void | ImageUtil_Reserved1() |
| void | ImageUtil_Reserved2() |
| void | ImageUtil_Reserved3() |
| void | ImageUtil_Reserved4() |
| Protected Member Functions | |
|---|---|
| CMdaImageUtility() | |
| void | DoCancel() |
| void | DoClose() |
| void | MoscoStateChangeEvent(CBase *, TInt, TInt, TInt) |
| void | SelfComplete(TInt) |
| Inherited Enumerations | |
|---|---|
| CActive:TPriority | |
| Protected Attributes | |
|---|---|
| CMdaImageUtilityPriv * | iProperties |
| Inherited Attributes | |
|---|---|
| CActive::iStatus | |
| void | CancelConvertL | ( | ) | [pure virtual] |
Cancels the conversion operation.
The callback function MMdaImageUtilObserver::MiuoConvertComplete() is not called.
| void | ConvertL | ( | CFbsBitmap & | aBitmap, |
| TInt | aFrameNumber = 0 | |||
| ) | [pure virtual] | |||
Begins the image conversion operation for the specified frame overloaded function.
The operation is asynchronous. When the conversion operation is complete, successfully or otherwise, the callback function MMdaImageUtilObserver::MiuoConvertComplete() is called.When converting from a file or descriptor to a bitmap, the operation can complete with KErrUnderflow, if there is insufficient information in the file or descriptor. Typically, this occurs when using the file or descriptor as a cache. In this situation, the conversion operation should be performed repeatedly until the file or descriptor has accumulated enough information for the operation to complete with KErrNone. As much of the image as is present is converted and written to the target bitmap at each call to this function.
| CFbsBitmap & aBitmap | A reference to a bitmap. This may be a source or a target for the conversion process, depending on the concrete conversion class utility being used. |
| TInt aFrameNumber = 0 | The frame number. This value is relative to zero. For those concrete conversion classes which perform conversion from a bitmap, this value must always be zero. For those concrete conversion classes which perform conversion to a bitmap, this value must be less than the number of frames in the image. |
| void | ConvertL | ( | CFbsBitmap & | aBitmap, |
| CFbsBitmap & | aMaskBitmap, | |||
| TInt | aFrameNumber = 0 | |||
| ) | [pure virtual] | |||
Begins the image conversion operation for the specified frame overloaded function.
The operation is asynchronous. When the conversion operation is complete, successfully or otherwise, the callback function MMdaImageUtilObserver::MiuoConvertComplete() is called.When converting from a file or descriptor to a bitmap, the operation can complete with KErrUnderflow, if there is insufficient information in the file or descriptor. Typically, this occurs when using the file or descriptor as a cache. In this situation, the conversion operation should be performed repeatedly until the file or descriptor has accumulated enough information for the operation to complete with KErrNone. As much of the image as is present is converted and written to the target bitmap at each call to this function.
CMdaImageUtility::ConvertL(CFbsBitmap& aBitmap,TInt aFrameNumber = 0)
| CFbsBitmap & aBitmap | A reference to a bitmap. This may be a source or a target for the conversion process, depending on the concrete conversion class utility being used. |
| CFbsBitmap & aMaskBitmap | A source or target mask bitmap, if present. |
| TInt aFrameNumber = 0 | The frame number. This value is relative to zero. For those concrete conversion classes which perform conversion from a bitmap, this value must always be zero. For those concrete conversion classes which perform conversion to a bitmap, this value must be less than the number of frames in the image. |
| IMPORT_C void | FrameInfo | ( | TInt | aFrame, |
| TFrameInfo & | aInfo | |||
| ) | const [virtual] | |||
| TInt aFrame | |
| TFrameInfo & aInfo |
| void | MoscoStateChangeEvent | ( | CBase * | aObject, |
| TInt | aPreviousState, | |||
| TInt | aCurrentState, | |||
| TInt | aErrorCode | |||
| ) | [protected, virtual] | |||