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.
void	drawRow (int row)
	Called, when data from a row is available and has been copied into the image buffer.
void	finish ()
	Called, when all image data has been retrieved.
void	fatal ()
	Called, when there are problems with the retrieval of image data.
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.

Definition at line 59 of file imgrenderer.hh.

Constructor & Destructor Documentation

ImgRendererDist()

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

inline

Definition at line 65 of file imgrenderer.hh.

References children.

~ImgRendererDist()

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

inline

Definition at line 68 of file imgrenderer.hh.

References children.

Member Function Documentation

drawRow()

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.

Definition at line 37 of file imgrenderer.cc.

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

fatal()

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.

Definition at line 56 of file imgrenderer.cc.

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

finish()

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.

Definition at line 47 of file imgrenderer.cc.

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

put()

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

inline

Definition at line 75 of file imgrenderer.hh.

References children.

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

remove()

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

inline

Definition at line 77 of file imgrenderer.hh.

References children.

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

setBuffer()

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.

Definition at line 28 of file imgrenderer.cc.

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

Member Data Documentation

children

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

private

Definition at line 62 of file imgrenderer.hh.

Referenced by drawRow(), fatal(), finish(), ImgRendererDist(), put(), remove(), setBuffer(), and ~ImgRendererDist().

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

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