dw::core::ImgRendererDist Class Reference

Implementation of ImgRenderer, which distributes all calls to a set of other implementations of ImgRenderer. More...

#include <imgrenderer.hh>

Public Member Functions
	ImgRendererDist ()
	~ImgRendererDist ()
void	setBuffer (core::Imgbuf *buffer, bool resize)
	Called, when an image buffer is attached. More...
void	drawRow (int row)
	Called, when data from a row is available and has been copied into the image buffer. More...
void	finish ()
	Called, when all image data has been retrieved. More...
void	fatal ()
	Called, when there are problems with the retrieval of image data. More...
void	put (ImgRenderer *child)
void	remove (ImgRenderer *child)
Public Member Functions inherited from dw::core::ImgRenderer
virtual	~ImgRenderer ()

Private Attributes
lout::container::typed::HashSet < lout::object::TypedPointer < ImgRenderer > > *	children

Detailed Description

Implementation of ImgRenderer, which distributes all calls to a set of other implementations of ImgRenderer.

The order of the call children is not defined, especially not identical to the order in which they have been added.

Constructor & Destructor Documentation

dw::core::ImgRendererDist::ImgRendererDist ( )

inline

References children.

dw::core::ImgRendererDist::~ImgRendererDist ( )

inline

References children.

Member Function Documentation

void dw::core::ImgRendererDist::drawRow ( int  row )

virtual

Called, when data from a row is available and has been copied into the image buffer.

The implementation will typically queue the respective area for drawing.

Implements dw::core::ImgRenderer.

References lout::object::TypedPointer< T >::getTypedValue().

void dw::core::ImgRendererDist::fatal ( )

virtual

Called, when there are problems with the retrieval of image data.

The implementation may use this to indicate an error.

Implements dw::core::ImgRenderer.

References lout::object::TypedPointer< T >::getTypedValue().

void dw::core::ImgRendererDist::finish ( )

virtual

Called, when all image data has been retrieved.

The implementation may use this instead of "drawRow" for drawing, to limit the number of draws.

Implements dw::core::ImgRenderer.

References lout::object::TypedPointer< T >::getTypedValue().

void dw::core::ImgRendererDist::put ( ImgRenderer *  child )

inline

References children.

Referenced by dw::core::style::StyleImage::putExternalImgRenderer().

void dw::core::ImgRendererDist::remove ( ImgRenderer *  child )

inline

References children.

Referenced by dw::core::style::StyleImage::removeExternalImgRenderer().

void dw::core::ImgRendererDist::setBuffer ( core::Imgbuf *  buffer, bool  resize  )

virtual

Called, when an image buffer is attached.

This is typically the case when all meta data (size, depth) has been read.

Implements dw::core::ImgRenderer.

References lout::object::TypedPointer< T >::getTypedValue().

Member Data Documentation

lout::container::typed::HashSet<lout::object::TypedPointer <ImgRenderer> >* dw::core::ImgRendererDist::children

private

Referenced by ImgRendererDist(), put(), remove(), and ~ImgRendererDist().

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The documentation for this class was generated from the following files:

• dw/imgrenderer.hh
• dw/imgrenderer.cc