luciad::IFeaturePainter Class Reference

A feature painter is used to specify how a feature is painted. More...

#include <luciad/layers/features/IFeaturePainter.h>

Public Member Functions
virtual	~IFeaturePainter ()=default
virtual void	configureMetadata (FeaturePainterMetadata &metadata) const =0
	This method is called by the layer to determine when the styling defined by this IFeaturePainter changes. More...
virtual void	paint (const Feature &feature, const FeaturePainterContext &context, FeatureCanvas &canvas) const =0
	Specifies how the given feature is painted. More...

Detailed Description

A feature painter is used to specify how a feature is painted.

An example of how to implement this interface can be found here.

Constructor & Destructor Documentation

~IFeaturePainter()

virtual luciad::IFeaturePainter::~IFeaturePainter ( )

virtualdefault

Member Function Documentation

configureMetadata()

virtual void luciad::IFeaturePainter::configureMetadata ( FeaturePainterMetadata &  metadata ) const

pure virtual

This method is called by the layer to determine when the styling defined by this IFeaturePainter changes.

The layer can use the FeaturePainterMetadata to know when to call the IFeaturePainter::paint method. The luciad::FeatureState::selected() and the luciad::FeaturePainterMetadata::painterDependsOnFeature are active by default.

Parameters

metadata

the metadata to be modified in this method

paint()

virtual void luciad::IFeaturePainter::paint ( const Feature &  feature, const FeaturePainterContext &  context, FeatureCanvas &  canvas  ) const

pure virtual

Specifies how the given feature is painted.

This is done by submitting draw command on the given FeatureCanvas.

An example of how to implement this method can be found here.

Parameters

feature	the feature to painter
context	additional context information
canvas	the canvas on which to submit draw commands.