public final class DataLabelsSelectionHandler extends DataLabelsPointerHandler
DataLabelsPlugin.ID event callbacks to invoke data set selection handlers if there were defined.DEFAULT_CURSOR| Constructor and Description |
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DataLabelsSelectionHandler()
Creates a callback setting
CursorType.POINTER as pointer. |
DataLabelsSelectionHandler(CursorType cursor)
Creates a callback setting the pointer cursor what is passed as argument.
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| Modifier and Type | Method and Description |
|---|---|
void |
addDatasetSelectionEventHandler(DatasetSelectionEventHandler handler)
Adds a data set selection handler instance to be invoke at click event.
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boolean |
onClick(DataLabelsContext context)
Invoked to manage CLICK events on labels.
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boolean |
removeDatasetSelectionEventHandler(DatasetSelectionEventHandler handler)
Removes a data set selection handler instance.
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getCursor, onEnter, onLeavepublic DataLabelsSelectionHandler()
CursorType.POINTER as pointer.public DataLabelsSelectionHandler(CursorType cursor)
cursor - the cursor type to use. If null, uses CursorType.POINTER as pointerpublic void addDatasetSelectionEventHandler(DatasetSelectionEventHandler handler)
handler - data set selection handler instance to be invoke at click eventpublic boolean removeDatasetSelectionEventHandler(DatasetSelectionEventHandler handler)
handler - data set selection handler instancetrue if the handler has been removed, otherwise falsepublic boolean onClick(DataLabelsContext context)
ClickEventHandleronClick in interface ClickEventHandleronClick in class AbstractEventHandlercontext - DataLabelsPlugin.ID plugin context instancetrue, the label is updated with the new context and the chart re-rendered.