Package org.csstudio.ui.util

Class AbstractSelectionProviderWrapper

java.lang.Object

org.csstudio.ui.util.AbstractSelectionProviderWrapper

All Implemented Interfaces:

ISelectionProvider

public abstract class AbstractSelectionProviderWrapper
extends Object
implements ISelectionProvider

Helper class to wrap a selection provider (e.g. a table, a tree, ...), so that events are fired at the same time, but the selection is changed to a different type (e.g. String to ProcessVariable).

This class is useful when constructing a composite that should behave like a standard JFace widget in term of selection but with CSS business objects. To use, you implement the transform and reverseTransform that convert the selection back and forth.

Constructor Summary

Constructors

Constructor	Description
AbstractSelectionProviderWrapper(ISelectionProvider wrappedProvider, ISelectionProvider eventSource)

Method Summary

Modifier and Type	Method	Description
void	addSelectionChangedListener(ISelectionChangedListener listener)
ISelection	getSelection()
void	removeSelectionChangedListener(ISelectionChangedListener listener)
protected ISelection	reverseTransform(IStructuredSelection selection)
void	setSelection(ISelection selection)
protected abstract ISelection	transform(IStructuredSelection selection)

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractSelectionProviderWrapper

public AbstractSelectionProviderWrapper(ISelectionProvider wrappedProvider,
 ISelectionProvider eventSource)

Method Details

addSelectionChangedListener

public void addSelectionChangedListener(ISelectionChangedListener listener)

Specified by:

addSelectionChangedListener in interface ISelectionProvider

removeSelectionChangedListener

public void removeSelectionChangedListener(ISelectionChangedListener listener)

Specified by:

removeSelectionChangedListener in interface ISelectionProvider

getSelection

public ISelection getSelection()

Specified by:

getSelection in interface ISelectionProvider

setSelection

public void setSelection(ISelection selection)

Specified by:

setSelection in interface ISelectionProvider

transform

protected abstract ISelection transform(IStructuredSelection selection)

reverseTransform

protected ISelection reverseTransform(IStructuredSelection selection)