/*******************************************************************************
* Copyright (c) 2000, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Sergey Prigogin (Google)
*******************************************************************************/
package org.eclipse.cdt.internal.corext.fix;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.text.link.LinkedModeModel;
import org.eclipse.jface.text.link.LinkedPosition;
import org.eclipse.swt.graphics.Image;
import org.eclipse.text.edits.ReplaceEdit;
import org.eclipse.text.edits.TextEdit;
import org.eclipse.cdt.core.dom.rewrite.ITrackedNodePosition;
public class LinkedProposalPositionGroup {
/**
* {@link LinkedProposalPositionGroup.PositionInformation} describes a position
* inside a position group. The information provided must be accurate
* after the document change to the proposal has been performed, but doesn't
* need to reflect the changed done by the linking mode.
*/
public static abstract class PositionInformation {
public abstract int getOffset();
public abstract int getLength();
public abstract int getSequenceRank();
}
public static class Proposal {
private String fDisplayString;
private Image fImage;
private int fRelevance;
public Proposal(String displayString, Image image, int relevance) {
fDisplayString= displayString;
fImage= image;
fRelevance= relevance;
}
public String getDisplayString() {
return fDisplayString;
}
public Image getImage() {
return fImage;
}
public int getRelevance() {
return fRelevance;
}
public void setImage(Image image) {
fImage= image;
}
public String getAdditionalProposalInfo() {
return null;
}
public TextEdit computeEdits(int offset, LinkedPosition position, char trigger, int stateMask, LinkedModeModel model) throws CoreException {
return new ReplaceEdit(position.getOffset(), position.getLength(), fDisplayString);
}
}
public static PositionInformation createPositionInformation(ITrackedNodePosition pos, boolean isFirst) {
return new TrackedNodePosition(pos, isFirst);
}
private static class TrackedNodePosition extends PositionInformation {
private final ITrackedNodePosition fPos;
private final boolean fIsFirst;
public TrackedNodePosition(ITrackedNodePosition pos, boolean isFirst) {
fPos= pos;
fIsFirst= isFirst;
}
@Override
public int getOffset() {
return fPos.getStartPosition();
}
@Override
public int getLength() {
return fPos.getLength();
}
@Override
public int getSequenceRank() {
return fIsFirst ? 0 : 1;
}
}
private final String fGroupId;
private final List<PositionInformation> fPositions;
private final List<Proposal> fProposals;
public LinkedProposalPositionGroup(String groupID) {
fGroupId= groupID;
fPositions= new ArrayList<PositionInformation>();
fProposals= new ArrayList<Proposal>();
}
public void addPosition(PositionInformation position) {
fPositions.add(position);
}
public void addProposal(Proposal proposal) {
fProposals.add(proposal);
}
public void addPosition(ITrackedNodePosition position, boolean isFirst) {
addPosition(createPositionInformation(position, isFirst));
}
public void addProposal(String displayString, Image image, int relevance) {
addProposal(new Proposal(displayString, image, relevance));
}
public String getGroupId() {
return fGroupId;
}
public PositionInformation[] getPositions() {
return fPositions.toArray(new PositionInformation[fPositions.size()]);
}
public Proposal[] getProposals() {
return fProposals.toArray(new Proposal[fProposals.size()]);
}
}