Package net.sf.jasperreports.customvisualization.export

Class CVElementImageProvider

java.lang.Object

net.sf.jasperreports.customvisualization.export.CVElementImageProvider

public class CVElementImageProvider
extends Object

Author:

Giulio Toffoli (gt78@users.sourceforge.net)

Constructor Summary

Constructors

Constructor	Description
CVElementImageProvider()

Method Summary

Modifier and Type	Method	Description
net.sf.jasperreports.engine.JRPrintImage	createPrintImage(net.sf.jasperreports.engine.JRGenericPrintElement element)
net.sf.jasperreports.renderers.Renderable	createRenderable(net.sf.jasperreports.engine.JRGenericPrintElement element, net.sf.jasperreports.repo.RepositoryContext repositoryContext)
net.sf.jasperreports.engine.JRPrintImage	getImage(net.sf.jasperreports.repo.RepositoryContext repositoryContext, net.sf.jasperreports.engine.JRGenericPrintElement element)	Produce an image for the element.
static CVElementImageProvider	getInstance()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CVElementImageProvider

public CVElementImageProvider()

Method Detail

getInstance

public static CVElementImageProvider getInstance()

getImage

public net.sf.jasperreports.engine.JRPrintImage getImage(net.sf.jasperreports.repo.RepositoryContext repositoryContext,
                                                         net.sf.jasperreports.engine.JRGenericPrintElement element)
                                                  throws net.sf.jasperreports.engine.JRException

Produce an image for the element. This method is invoked by JasperReports all the times the report needs to be rendered. It is called even if the element itself is not yet ready to be painted (in example when the viewer is displaying the first page containing this element, but this element has evaluation time report). The method return a JRPrintImage with a null renderer until the final image is not complete, in which case we look in the element for a cached renderer save as parameter with key CVPrintElement.PARAMETER_CACHE_RENDERER inside the element. If the renderer is not available (because this is the first time we try to draw this element after the image has been produced), the new renderer will be created. The ability to set a null renderer works starting from 6.2.2.

Parameters:

repositoryContext -

element -

Returns:

Throws:

net.sf.jasperreports.engine.JRException

createPrintImage

public net.sf.jasperreports.engine.JRPrintImage createPrintImage(net.sf.jasperreports.engine.JRGenericPrintElement element)

createRenderable

public net.sf.jasperreports.renderers.Renderable createRenderable(net.sf.jasperreports.engine.JRGenericPrintElement element,
                                                                  net.sf.jasperreports.repo.RepositoryContext repositoryContext)
                                                           throws net.sf.jasperreports.engine.JRException

Throws:

net.sf.jasperreports.engine.JRException