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Eclipse Platform
Release 3.5

org.eclipse.jface.text
Interface ITextViewerExtension4

All Known Implementing Classes:
ProjectionViewer, SourceViewer, TextConsoleViewer, TextViewer

public interface ITextViewerExtension4

Extension interface for ITextViewer. Introduces the concept of text presentation listeners and improves focus handling among widget token keepers.

A ITextPresentationListeneris a listener that is informed by the viewer that a text presentation is about to be applied. During this callback the listener is allowed to modify the presentation. Text presentation listeners are thus a mean to participate in the process of text presentation creation.

Since:
3.0

Method Summary
 void addTextPresentationListener ( ITextPresentationListener listener)
          Adds the given text presentation listener to this text viewer.
 boolean moveFocusToWidgetToken ()
          Instructs the receiver to request the IWidgetTokenKeeper currently holding the widget token to take the keyboard focus.
 void removeTextPresentationListener ( ITextPresentationListener listener)
          Removes the given text presentation listener from this text viewer.
 

Method Detail

moveFocusToWidgetToken

boolean moveFocusToWidgetToken()
Instructs the receiver to request the IWidgetTokenKeeper currently holding the widget token to take the keyboard focus.

Returns:
true if there was any IWidgetTokenKeeper that was asked to take the focus, false otherwise

addTextPresentationListener

void addTextPresentationListener(
ITextPresentationListener listener)
Adds the given text presentation listener to this text viewer. This call has no effect if the listener is already registered with this text viewer.

Parameters:
listener - the text presentation listener

removeTextPresentationListener

void removeTextPresentationListener(
ITextPresentationListener listener)
Removes the given text presentation listener from this text viewer. This call has no effect if the listener is not registered with this text viewer.

Parameters:
listener - the text presentation listener

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire