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CLafEdwinCustomDrawBase Class Reference

class CLafEdwinCustomDrawBase : public CBase

LAF support for custom drawing of Edwins.

This class is used by CEikEdwin to draw lines in plain text editors. It does not work in rich text editors, as it assumes the line spacing is constant.

The custom drawing interface is defined by the MFormCustomDraw class.

Inherits from

CLafEdwinCustomDrawBase
- CBase

Public Member Functions
IMPORT_C void	DrawBackground (const TParam &, const TRgb &, TRect &)
IMPORT_C void	LineSpacingChanged ()
IMPORT_C CLafEdwinCustomDrawBase *	NewL (const MLafEnv &, const CCoeControl &)
IMPORT_C TRgb	SystemColor ( TUint , TRgb )

Protected Member Functions
	CLafEdwinCustomDrawBase (const MLafEnv &, const CCoeControl &)

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
const CCoeControl &	iControl
const MLafEnv &	iEnv

Private Attributes
TInt	iSpare

Constructor & Destructor Documentation

CLafEdwinCustomDrawBase(const MLafEnv &, const CCoeControl &)

IMPORT_C	CLafEdwinCustomDrawBase	(	const MLafEnv &	aEnv,
			const CCoeControl &	aControl
		)	[protected]

Constructor that initialises data members.

Parameters

const MLafEnv & aEnv	LAF environment functions
const CCoeControl & aControl	The Edwin control

Member Functions Documentation

DrawBackground(const TParam &, const TRgb &, TRect &)

IMPORT_C void	DrawBackground	(	const TParam &	aParam,
			const TRgb &	aBackground,
			TRect &	aDrawn
		)	const

Implements MFormCustomDraw::DrawBackground() to draw the Edwin background.

See that function for a full description.

Parameters

const TParam & aParam	Drawing parameters
const TRgb & aBackground	Default background colour
TRect & aDrawn	On return, the rectangle to which the function has drawn

LineSpacingChanged()

IMPORT_C void

LineSpacingChanged

(

)

[virtual]

Notifies the drawer that a MEikEdwinObserver::EEventFormatChanged event has occurred for the Edwin.

NewL(const MLafEnv &, const CCoeControl &)

IMPORT_C CLafEdwinCustomDrawBase *	NewL	(	const MLafEnv &	aEnv,
			const CCoeControl &	aControl
		)	[static]

Allocates and constructs the custom drawer.

Parameters

const MLafEnv & aEnv	LAF environment functions
const CCoeControl & aControl	The Edwin control

SystemColor(TUint, TRgb)

IMPORT_C TRgb	SystemColor	(	TUint	aColorIndex,
			TRgb	aDefaultColor
		)	const

Gets the physical colour that maps to a specified logical colour.

Parameters

TUint aColorIndex	Logical colour
TRgb aDefaultColor	The default physical colour. This is the colour to be used if no translation is performed. This allows translation to change certain indices but not others ( by passing the default colour back unchanged).

Member Data Documentation

const CCoeControl & iControl

const CCoeControl &

iControl

[protected]

The Edwin control.

This is initialised by the constructor.

const MLafEnv & iEnv

const MLafEnv &

iEnv

[protected]

LAF environment functions

This is initialised by the constructor.

TInt iSpare

TInt

iSpare

[private]

Unused.