Class TColorConvertor

class TColorConvertor;

Description

Interface to colour conversion classes for various display modes. Manages the mapping between RGB/Greyscale values and the index into the color palette for the given display mode.

Members

Defined in TColorConvertor:
Color(), ColorIndex(), ColorToIndex(), NewL(), RgbToMonochrome()

static IMPORT_C TColorConvertor *NewL(TDisplayMode aDisplayMode);

Description

Static factory function for creating instances of TColorConvertor derived classes based on the supplied display mode.

Parameters

Return value

Leave codes

virtual TInt ColorIndex(TRgb aColor) const=0;

Description

Returns the colour index corresponding to the supplied RGB value. Operates in the context of the current display mode.

This is a virtual function that each derived class must implement.

Parameters

Return value

virtual TRgb Color(TInt aColorIndex) const=0;

Description

Returns the RGB value corresponding to the supplied colour index. Operates in the context of the current display mode.

This is a virtual function that each derived class must implement.

Parameters

Return value

virtual void ColorToIndex(TInt *aIndexBuffer, TRgb *aColorBuffer, TInt aCount) const=0;

Description

Gets an array of colour indices from a corresponding array of RGB values. Operates in the context of the current display mode.

This is a virtual function that each derived class must implement.

Parameters

static inline TInt RgbToMonochrome(TRgb aRgb);

Description

Parameters

Return value