Class ImageProcessorUtility

class ImageProcessorUtility;

Description

Utility class providing static factory functions for creating instances of CImageProcessor derived classes.

Members

Defined in ImageProcessorUtility:
NewImageProcessorL(), NewImageProcessorL(), ReductionFactor()

static IMPORT_C TInt ReductionFactor(const TSize &aOriginalSize, const TSize &aReducedSize);

Description

Static function to calculate a reduction factor based on the input parameters. This function is deprecated. It is recommended to use CImageDecoder::ReductionFactor or CImageReadCodec::ReductionFactor(for Plugin writers only) to calculate the reduction factor and then use CImageDecoder::ReducedSize to find the size of the decoded bitmap.

Parameters

const TSize &aOriginalSize A reference to the original size of an item. const TSize &aReducedSize A reference to the new size of an item.

Return value

TInt The reduction factor.

static IMPORT_C CImageProcessor *NewImageProcessorL(const CFbsBitmap &aBitmap, const TSize &aImageSize, TDisplayMode aImageDisplayMode, TBool aDisableErrorDiffusion);

Description

Static factory function for creating instances of CImageProcessor derived classes. This fuction is deprecated. It is recommended for plugin writers to use default implementation of CImageReadCodec::ReductionFactor to calculate the reduction factor and then use NewImageProcessorL(const CFbsBitmap& aBitmap,TInt aReductionFactor,TDisplayMode aImageDisplayMode, TBool aDisableErrorDiffusion)

Parameters

const CFbsBitmap &aBitmap A reference to the bitmap used. const TSize &aImageSize The size of image to use. TDisplayMode aImageDisplayMode The display mode to use. TBool aDisableErrorDiffusion A flag indicating whether error diffusion should be disabled.

Return value

CImageProcessor * A pointer to a fully constructed CImageProcessor derived object.

static IMPORT_C CImageProcessor *NewImageProcessorL(const CFbsBitmap &aBitmap, TInt aReductionFactor, TDisplayMode aImageDisplayMode, TBool aDisableErrorDiffusion);

Description

Static factory function for creating instances of CImageProcessor derived classes.

Parameters

const CFbsBitmap &aBitmap A reference to the bitmap used. TInt aReductionFactor The value indicating how much to shrink the bitmap. TDisplayMode aImageDisplayMode The display mode to use. TBool aDisableErrorDiffusion A flag indicating whether error diffusion should be disabled.

Return value

CImageProcessor * A pointer to a fully constructed CImageProcessor derived object.