Class TGifImageDescriptor

class TGifImageDescriptor : public TFrameDataBlock;

Description

GIF specific frame data variant which holds image descriptor information.

It can only be used with the GIF decoder (the encoder is not configurable).

Derivation

• TFrameDataBlock - The abstract base class for all format-specific frame data variants.

• TGifImageDescriptor - GIF specific frame data variant which holds image descriptor information.

Members

Defined in TGifImageDescriptor:

• DuplicateL(CFrameImageData &)constProvides a copy of an object that manages a list of frame and image block data, ...
• TGifImageDescriptor()Default constructor for this class.
• iInterlacedA boolean indicating if the image is interlaced. ETrue if the image is interlace...
• iLocalColorMapA boolean indicating if the frame has its own local colour map. ETrue if it does...
• iSortedLocalMapA boolean indicating if the frame's local colour map is sorted in priority order...

Inherited from TFrameDataBlock:

• DataType()constReturns the data type of the current TFrameDataBlock object.
• TFrameDataBlock(TUid)Constructs and initialises the TFrameDataBlock object to the data type specified...

IMPORT_C TGifImageDescriptor();

Description

Default constructor for this class.

private: virtual TFrameDataBlock* DuplicateL(CFrameImageData &aFrameImageData) const;

Description

Provides a copy of an object that manages a list of frame and image block data, but not a bitwise copy. It provides a new reference to the object.

Parameters

CFrameImageData &aFrameImageData An object that manages a list of frame and image block data

Return value

TFrameDataBlock *

TBool iLocalColorMap;

Description

A boolean indicating if the frame has its own local colour map. ETrue if it does, otherwise EFalse.

TBool iSortedLocalMap;

Description

A boolean indicating if the frame's local colour map is sorted in priority order. ETrue if it is, otherwise EFalse.

TBool iInterlaced;

Description

A boolean indicating if the image is interlaced. ETrue if the image is interlaced.