ilog.views.servlet

Class IlvNavigationInfoGenerator

java.lang.Object

ilog.views.servlet.IlvAbstractHitmapInfoGenerator

ilog.views.servlet.IlvNavigationInfoGenerator

All Implemented Interfaces:

IlvHitmapInfoGenerator

public class IlvNavigationInfoGenerator
extends IlvAbstractHitmapInfoGenerator

The generator for keyboard navigation info in a view.

You can override prepareNavigationInfos() to define the logic of keyboard navigation.

Since:

JViews 8.8

See Also:

IlvHitmapConstants.NAVIGATION_TYPE

Field Summary

Fields

Modifier and Type	Field and Description
protected IlvNavigationInfo[]	relations An array of IlvNavigationInfo to keep the navigation information for each hitmap data item.

Fields inherited from class ilog.views.servlet.IlvAbstractHitmapInfoGenerator

hitmapDefinition

Constructor Summary

Constructors

Constructor and Description
IlvNavigationInfoGenerator(IlvHitmapDefinition hitmapDefinition) Constructor

Method Summary

Modifier and Type	Method and Description
String	buildInformation(String infoType) Builds the hitmap information for the given information type.
protected String	getRegionInfo(IlvGraphic graphic, String infoType) Gets the string like "[21,20,0,0]".
protected IlvNavigationInfo[]	prepareNavigationInfos() Prepare accessible information.

Methods inherited from class java.lang.Object

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

Field Detail

relations

protected IlvNavigationInfo[] relations

An array of IlvNavigationInfo to keep the navigation information for each hitmap data item.

Constructor Detail

IlvNavigationInfoGenerator

public IlvNavigationInfoGenerator(IlvHitmapDefinition hitmapDefinition)

Constructor

Parameters:

hitmapDefinition - the IlvHitmapDefinition instance.

Method Detail

buildInformation

public String buildInformation(String infoType)

Builds the hitmap information for the given information type. Overridden to invoke the prepareNavigationInfos() method.

Specified by:

buildInformation in interface IlvHitmapInfoGenerator

Overrides:

buildInformation in class IlvAbstractHitmapInfoGenerator

Returns:

The hitmap information of the given type, containing the region infos for all regions and that type.

prepareNavigationInfos

protected IlvNavigationInfo[] prepareNavigationInfos()

Prepare accessible information. [up, down, left, right]

 accessible:[,
 [26,19,0,0],
 [25,26,0,0],
 [24,25,0,0],
 [22,24,6,0],
 [23,24,0,0],
 [22,23,4,0],
 [21,20,0,0]]
 

getRegionInfo

protected String getRegionInfo(IlvGraphic graphic,
                               String infoType)

Gets the string like "[21,20,0,0]". Means when click up, down, left and right arrow key, which graphic element would be focused.

Specified by:

getRegionInfo in class IlvAbstractHitmapInfoGenerator

Parameters:

graphic - The IlvGraphic object.

infoType - The type of hitmap information.

Returns:

The hitmap information for the region of the graphic object.