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MWsDrawResource Class Reference

class MWsDrawResource

An extension interface for CWindowGc and CRemoteGc to draw RWsDrawableSources.

Usage:

MWsDrawResource* gcDrawResource = static_cast<MWsDrawResource*>(gc->Interface(KMWsDrawResourceInterfaceUid));
if(gcDrawResource)
	{
	gcDrawResource->DrawResource(TPoint(5,5), drawableSource);
	}

RWsDrawableSource CWindowGc::Interface

Public Member Functions
void	DrawResource(const TPoint &, const RWsDrawableSource &, CWindowGc::TGraphicsRotation)
void	DrawResource(const TRect &, const RWsDrawableSource &, CWindowGc::TGraphicsRotation)
void	DrawResource(const TRect &, const RWsDrawableSource &, const TRect &, CWindowGc::TGraphicsRotation)
void	DrawResource(const TRect &, const RWsDrawableSource &, const TDesC8 &)

Member Functions Documentation

DrawResource(const TPoint &, const RWsDrawableSource &, CWindowGc::TGraphicsRotation)

void	DrawResource	(	const TPoint &	aPos,
			const RWsDrawableSource &	aSource,
			CWindowGc::TGraphicsRotation	aRotation = CWindowGc::EGraphicsRotationNone
		)	[pure virtual]

Draws an image based resource which may be generated using non-native rendering API such as OpenGL ES or OpenVG. The resource will be drawn at the specified position in its original size with orientation according to the specified rotation parameter. The current clipping region applies.

RWsDrawableSource

Pre-condition: Drawing context has been activated on a window. The drawable source has been created.

Post-condition: Request to draw resource has been accepted. There is no guarantee that the request has been completed when this method returns.

Parameters

const TPoint & aPos	The position of the top-left corner on a window.
const RWsDrawableSource & aSource	The resource to be drawn.
CWindowGc::TGraphicsRotation aRotation = CWindowGc::EGraphicsRotationNone	The rotation to be applied to the resource before it is drawn. The default value is CWindowGc::EGraphicsRotationNone.

DrawResource(const TRect &, const RWsDrawableSource &, CWindowGc::TGraphicsRotation)

void	DrawResource	(	const TRect &	aDestRect,
			const RWsDrawableSource &	aSource,
			CWindowGc::TGraphicsRotation	aRotation = CWindowGc::EGraphicsRotationNone
		)	[pure virtual]

Draws an image based resource. The resource will be rendered to the given destination rectangle on the window in its original dimensions with orientation according to the specified rotation parameter. Drawing will be clipped to the given destination rectangle. The current clipping region applies. The resource can be drawn rotated using the CWindowGc::TGraphicsRotation enum which defines possible rotation values in clockwise degrees.

RWsDrawableSource

Pre-condition: Drawing context has been activated on a window. The drawable source has been created.

Post-condition: Request to draw resource has been accepted. There is no guarantee that the request has been completed when this method returns.

Parameters

const TRect & aDestRect	Destination rectangle to which the resource will be rendered.
const RWsDrawableSource & aSource	The resource to be drawn.
CWindowGc::TGraphicsRotation aRotation = CWindowGc::EGraphicsRotationNone	The rotation to be applied to the resource before it is drawn. The default value is CWindowGc::EGraphicsRotationNone.

DrawResource(const TRect &, const RWsDrawableSource &, const TRect &, CWindowGc::TGraphicsRotation)

void	DrawResource	(	const TRect &	aDestRect,
			const RWsDrawableSource &	aSource,
			const TRect &	aSrcRect,
			CWindowGc::TGraphicsRotation	aRotation = CWindowGc::EGraphicsRotationNone
		)	[pure virtual]

Draws an image based resource. The resource is rendered into the given destination rectangle on a window. Scaling (stretching or compression) applies if the destination rectangle is different from the source rectangle. The resource orientation is set based on the specified rotation parameter before scaling and drawing operations are performed.

RWsDrawableSource

Pre-condition: Drawing context has been activated on a window. The drawable source has been created.

Post-condition: Request to draw an image based resource has been accepted. There is no guarantee that the request has been completed when this method returns.

Parameters

const TRect & aDestRect	The destination rectangle to which the resource will be rendered on a window.
const RWsDrawableSource & aSource	The resource to draw.
const TRect & aSrcRect	The source rectangle specifying the area/sub-area of the resource to be rendered.
CWindowGc::TGraphicsRotation aRotation = CWindowGc::EGraphicsRotationNone	Rotation to be applied to the resource before it is drawn. The default value is CWindowGc::EGraphicsRotationNone.

DrawResource(const TRect &, const RWsDrawableSource &, const TDesC8 &)

void	DrawResource	(	const TRect &	aDestRect,
			const RWsDrawableSource &	aSource,
			const TDesC8 &	aParam
		)	[pure virtual]

Draws a non-image based resource. The resource will be rendered into the given destination rectangle on a window. The current clipping region applies. The adaptation is free to interpret the parameter aParam and may define its own rules on how to handle the rendering of a non-image based resource.

RWsDrawableSource

Pre-condition: Drawing context has been activated on a window. The drawable source has been created.

Post-condition: Request to draw a non-image based resource has been accepted. There is no guarantee that the request has been completed when this method returns.

Parameters

const TRect & aDestRect	The destination rectangle to which the resource will be rendered on a window.
const RWsDrawableSource & aSource	The resource.
const TDesC8 & aParam	Parameters specifying how to draw the resource.