IlvDefaultFeatureRenderer Class Reference

This feature renderer can translate all the predefined geometries of Rogue Wave Views into graphic objects. More...

#include <ilviews/maps/dftrenderer.h>

Inheritance diagram for IlvDefaultFeatureRenderer:

Public Member Functions
	IlvDefaultFeatureRenderer (IlvDisplay *display)
	Initializes an instance of the renderer. More...
	IlvDefaultFeatureRenderer (const IlvDefaultFeatureRenderer &source)
	Creates an IlvDefaultFeatureRenderer by copying an existing one. More...
IlvFeatureRenderer *	getAreaRenderer () const
	Returns the renderer used to translate areas into graphic objects. More...
IlvFeatureRenderer *	getCurveRenderer () const
	Returns the renderer used to translate curves into graphic objects. More...
IlvFeatureRenderer *	getImageRenderer () const
	Returns the renderer used to translate images into graphic objects. More...
IlvFeatureRenderer *	getPointRenderer () const
	Returns the renderer used to translate points into graphic objects. More...
IlvFeatureRenderer *	getRasterRenderer () const
	Returns the renderer used to translate rasters into graphic objects. More...
IlvFeatureRenderer *	getTextRenderer () const
	Returns The renderer used to translate texts into graphic objects. More...
virtual IlvGraphic *	makeGraphic (const IlvMapFeature &mapFeature, const IlvMapInfo &targetMapInfo, IlvMapsError &status) const
	Translates an IlvMapFeature into a graphic object. More...
void	setAreaRenderer (const IlvFeatureRenderer *areaRenderer)
	Sets the graphic renderer used to translate areas into graphic objects. More...
void	setCurveRenderer (const IlvFeatureRenderer *curveRenderer)
	Sets the graphic renderer used to translate curves into graphic objects. More...
void	setImageRenderer (const IlvFeatureRenderer *imageRenderer)
	Sets the graphic renderer used to translate images into graphic objects. More...
void	setPointRenderer (const IlvFeatureRenderer *pointRenderer)
	Sets the graphic renderer used to translate points into graphic objects. More...
void	setRasterRenderer (const IlvFeatureRenderer *rasterRenderer)
	Sets the graphic renderer used to translate rasters into graphic objects. More...
void	setTextRenderer (const IlvFeatureRenderer *textRenderer)
	Sets the graphic renderer used to translate texts into graphic objects. More...
Public Member Functions inherited from IlvFeatureRenderer
virtual IlvFeatureRenderer *	copy () const =0
	Copies the object. More...
IlvDisplay *	getDisplay () const
	Returns the renderer display. More...
IlBoolean	isPersistent () const
	Checks if the renderer can be saved. More...
void	save (IlvOutputFile &file) const
	Saves the object to an IlvOutputFile. More...
virtual void	write (IlvOutputFile &file) const =0
	Writes the renderer to an IlvOutputStream. More...

Protected Member Functions
virtual IlvGraphic *	dispatch (const IlvMapFeature &mapFeature, const IlvMapInfo &targetMapInfo, IlvMapsError &status) const
	Dispatches a map feature to the renderer specialized to render the feature geometry. More...
virtual IlvGraphic *	makeGraphicFromGeometryCollection (const IlvMapFeature &mapFeature, const IlvMapInfo &targetMapInfo, IlvMapsError &status) const
	This function is called by dispatch for the map features whose geometry is a collection of subgeometries. More...
Protected Member Functions inherited from IlvFeatureRenderer
	IlvFeatureRenderer (IlvDisplay *display, IlBoolean persistent=IlTrue)
	Constructor. More...

Additional Inherited Members
Static Public Member Functions inherited from IlvFeatureRenderer
static IlvFeatureRenderer *	Load (IlvInputFile &file)
	Loads a renderer from an IlvInputFile. More...

Detailed Description

This feature renderer can translate all the predefined geometries of Rogue Wave Views into graphic objects.

Library: ilvmaps

It dispatches the makeGraphic calls to a specialized feature renderer depending on the geometry of the map feature. Each specialized feature renderer is initialized with a default value, but it can be changed.

Constructor & Destructor Documentation

IlvDefaultFeatureRenderer::IlvDefaultFeatureRenderer

(

IlvDisplay *

display

)

Initializes an instance of the renderer.

Parameters

display	The display used to create the graphic objects.
persistent	Specifies if the renderer must be saved by the objects that use it.

IlvDefaultFeatureRenderer::IlvDefaultFeatureRenderer

(

const IlvDefaultFeatureRenderer &

source

)

Creates an IlvDefaultFeatureRenderer by copying an existing one.

Parameters

source

The renderer to be copied.

Member Function Documentation

virtual IlvGraphic* IlvDefaultFeatureRenderer::dispatch ( const IlvMapFeature &  mapFeature, const IlvMapInfo &  targetMapInfo, IlvMapsError &  status  ) const

protectedvirtual

Dispatches a map feature to the renderer specialized to render the feature geometry.

Parameters

mapFeature	The map feature to be translated.
targetMapInfo	The IlvMapInfo that specifies the projection in which the graphic object must be returned.
status	Set to an error code if the renderer cannot process the map feature.

Returns

An IlvGraphic or a null pointer if no appropriate renderer was found, or if a severe error occurs during the rendering process.

Reimplemented in IlvS57Renderer.

IlvFeatureRenderer* IlvDefaultFeatureRenderer::getAreaRenderer

(

)

const

Returns the renderer used to translate areas into graphic objects.

Returns

An IlvFeatureRenderer that can be modified, but that should not be deleted.

IlvFeatureRenderer* IlvDefaultFeatureRenderer::getCurveRenderer

(

)

const

Returns the renderer used to translate curves into graphic objects.

Returns

An IlvFeatureRenderer that can be modified, but that should not be deleted.

IlvFeatureRenderer* IlvDefaultFeatureRenderer::getImageRenderer

(

)

const

Returns the renderer used to translate images into graphic objects.

Returns

An IlvFeatureRenderer that can be modified, but that should not be deleted.

IlvFeatureRenderer* IlvDefaultFeatureRenderer::getPointRenderer

(

)

const

Returns the renderer used to translate points into graphic objects.

Returns

An IlvFeatureRenderer that can be modified, but that should not be deleted.

IlvFeatureRenderer* IlvDefaultFeatureRenderer::getRasterRenderer

(

)

const

Returns the renderer used to translate rasters into graphic objects.

Returns

An IlvFeatureRenderer that can be modified, but that should not be deleted.

IlvFeatureRenderer* IlvDefaultFeatureRenderer::getTextRenderer

(

)

const

Returns The renderer used to translate texts into graphic objects.

Returns

An IlvFeatureRenderer that can be modified, but that should not be deleted.

virtual IlvGraphic* IlvDefaultFeatureRenderer::makeGraphic ( const IlvMapFeature &  mapFeature, const IlvMapInfo &  targetMapInfo, IlvMapsError &  status  ) const

virtual

Translates an IlvMapFeature into a graphic object.

If the targetMapInfo has a non-null projection, or a projection that is not an instance of IlvUnknownProjection, the graphic object is projected to the projection system of targetMapInfo. Otherwise, only the map adapter of targetMapInfo is used to convert the feature coordinate into the manager coordinate system.

Parameters

feature	The map feature to be translated.
targetMapInfo	This parameter specifies the projection in which the graphic object must be returned. If this projection is not defined (targetMapInfo.getProjection() is NULL), the graphic object is returned to the projection of the map feature (only the map adapter is used)
status	Is set to an error code if the renderer cannot process the map feature (most of the time, because the renderer does not support the feature geometry, but it can also indicate that a projection error occurred).

Returns

An IlvGraphic or a null pointer if a severe error occurred.

Implements IlvFeatureRenderer.

virtual IlvGraphic* IlvDefaultFeatureRenderer::makeGraphicFromGeometryCollection ( const IlvMapFeature &  mapFeature, const IlvMapInfo &  targetMapInfo, IlvMapsError &  status  ) const

protectedvirtual

This function is called by dispatch for the map features whose geometry is a collection of subgeometries.

Parameters

mapFeature	The map feature to be translated.
targetMapInfo	The IlvMapInfo that specifies the projection in which the graphic object must be returned.
status	Set to an error code if the renderer cannot process the map feature.

Returns

An IlvGraphic or a null pointer if no appropriate renderer was found, or if a severe error occurs during the rendering process.

void IlvDefaultFeatureRenderer::setAreaRenderer

(

const IlvFeatureRenderer *

areaRenderer

)

Sets the graphic renderer used to translate areas into graphic objects.

Parameters

areaRenderer

The area renderer.

void IlvDefaultFeatureRenderer::setCurveRenderer

(

const IlvFeatureRenderer *

curveRenderer

)

Sets the graphic renderer used to translate curves into graphic objects.

Parameters

curveRenderer

The curve renderer.

void IlvDefaultFeatureRenderer::setImageRenderer

(

const IlvFeatureRenderer *

imageRenderer

)

Sets the graphic renderer used to translate images into graphic objects.

Parameters

imageRenderer

The image renderer.

void IlvDefaultFeatureRenderer::setPointRenderer

(

const IlvFeatureRenderer *

pointRenderer

)

Sets the graphic renderer used to translate points into graphic objects.

Parameters

pointRenderer

The point renderer.

void IlvDefaultFeatureRenderer::setRasterRenderer

(

const IlvFeatureRenderer *

rasterRenderer

)

Sets the graphic renderer used to translate rasters into graphic objects.

Parameters

rasterRenderer

The raster renderer.

void IlvDefaultFeatureRenderer::setTextRenderer

(

const IlvFeatureRenderer *

textRenderer

)

Sets the graphic renderer used to translate texts into graphic objects.

Parameters

textRenderer

The text renderer.