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Diffstat (limited to 'org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/IContextInformationPresenter.java')
| -rw-r--r-- | org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/IContextInformationPresenter.java | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/IContextInformationPresenter.java b/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/IContextInformationPresenter.java new file mode 100644 index 00000000000..d0b8783103f --- /dev/null +++ b/org.eclipse.jface.text/src/org/eclipse/jface/text/contentassist/IContextInformationPresenter.java @@ -0,0 +1,48 @@ +/********************************************************************** +Copyright (c) 2000, 2002 IBM Corp. and others. +All rights reserved. This program and the accompanying materials +are made available under the terms of the Common Public License v1.0 +which accompanies this distribution, and is available at +http://www.eclipse.org/legal/cpl-v10.html + +Contributors: + IBM Corporation - Initial implementation +**********************************************************************/ + +package org.eclipse.jface.text.contentassist; + + +import org.eclipse.jface.text.ITextViewer; +import org.eclipse.jface.text.TextPresentation; + + +/** + * A context information presenter determines the presentation + * of context information depending on a given document position. + * The interface can be implemented by clients. + * + * @since 2.0 + */ +public interface IContextInformationPresenter { + + /** + * Installs this presenter for the given context information. + * + * @param info the context information which this presenter should style + * @param viewer the text viewer on which the information is presented + * @param documentPosition the document position for which the information has been computed + */ + void install(IContextInformation info, ITextViewer viewer, int documentPosition); + + /** + * Updates the given presentation of the given context information + * at the given document position. Returns whether update changed the + * presentation. + * + * @param information the context information to be styled + * @param documentPosition the current position within the document + * @param presentation the presentation to be updated + * @return <code>true</code> if the given presentation has been changed + */ + boolean updatePresentation(int documentPosition, TextPresentation presentation); +}
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