Package org.pepstock.charba.client.impl.callbacks

Class DataLabelsPointerHandler

java.lang.Object

org.pepstock.charba.client.datalabels.events.AbstractEventHandler

org.pepstock.charba.client.impl.callbacks.DataLabelsPointerHandler

All Implemented Interfaces:

ClickEventHandler, EnterEventHandler, LeaveEventHandler

Direct Known Subclasses:

DataLabelsSelectionHandler

public class DataLabelsPointerHandler
extends AbstractEventHandler

DataLabelsPlugin event callback to change the cursor type when the labels are clickable.

Author:

Andrea "Stock" Stocchero

Field Summary

Fields

Modifier and Type	Field	Description
static CursorType	DEFAULT_CURSOR	Default pointer cursor to use if omitted, CursorType.POINTER.

Constructor Summary

Constructors

Constructor	Description
DataLabelsPointerHandler()	Creates a callback setting the DEFAULT_CURSOR as pointer.
DataLabelsPointerHandler(CursorType cursor)	Creates a callback setting the pointer cursor what is passed as argument.

Method Summary

Modifier and Type	Method	Description
CursorType	getCursor()	Returns the pointer cursor to use.
boolean	onEnter(DataLabelsContext context, ChartEventContext event)	Invoked to manage ENTER events on labels.
boolean	onLeave(DataLabelsContext context, ChartEventContext event)	Invoked to manage LEAVE events on labels.

Methods inherited from class org.pepstock.charba.client.datalabels.events.AbstractEventHandler

onClick

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_CURSOR

public static final CursorType DEFAULT_CURSOR

Default pointer cursor to use if omitted, CursorType.POINTER.

Constructor Detail

DataLabelsPointerHandler

public DataLabelsPointerHandler()

Creates a callback setting the DEFAULT_CURSOR as pointer.

DataLabelsPointerHandler

public DataLabelsPointerHandler(CursorType cursor)

Creates a callback setting the pointer cursor what is passed as argument.

Parameters:

cursor - the cursor type to use. If null, uses DEFAULT_CURSOR as pointer

Method Detail

getCursor

public final CursorType getCursor()

Returns the pointer cursor to use.

Returns:

the pointer cursor to use

onLeave

public boolean onLeave(DataLabelsContext context,
                       ChartEventContext event)

Description copied from interface: LeaveEventHandler

Invoked to manage LEAVE events on labels.

Specified by:

onLeave in interface LeaveEventHandler

Overrides:

onLeave in class AbstractEventHandler

Parameters:

context - DataLabelsPlugin.ID plugin context instance

event - event instance

Returns:

If the callback explicitly returns true, the label is updated with the new context and the chart re-rendered.

onEnter

public boolean onEnter(DataLabelsContext context,
                       ChartEventContext event)

Description copied from interface: EnterEventHandler

Invoked to manage ENTER events on labels.

Specified by:

onEnter in interface EnterEventHandler

Overrides:

onEnter in class AbstractEventHandler

Parameters:

context - DataLabelsPlugin.ID plugin context instance

event - event instance

Returns:

If the callback explicitly returns true, the label is updated with the new context and the chart re-rendered.