RedEditorLinkedModeUI.java

/*
 * Copyright 2016 Nokia Solutions and Networks
 * Licensed under the Apache License, Version 2.0,
 * see license.txt file for details.
 */
package org.robotframework.red.jface.text.link;

import java.util.Collection;

import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.link.LinkedModeModel;
import org.eclipse.jface.text.link.LinkedModeUI;
import org.eclipse.jface.text.link.LinkedPosition;
import org.eclipse.jface.text.link.LinkedPositionGroup;


/**
 * @author Michal Anglart
 *
 */
public class RedEditorLinkedModeUI extends LinkedModeUI {

    public static void enableLinkedMode(final ITextViewer viewer, final Collection<IRegion> regionsToLinkedEdit) {
        try {
            final LinkedModeModel model = new LinkedModeModel();
            for (final IRegion region : regionsToLinkedEdit) {
                final LinkedPositionGroup group = new LinkedPositionGroup();
                group.addPosition(new LinkedPosition(viewer.getDocument(), region.getOffset(), region.getLength()));
                model.addGroup(group);
            }
            model.forceInstall();
            final LinkedModeUI linkedModeUi = new RedEditorLinkedModeUI(model, viewer);
            linkedModeUi.enter();
        } catch (final BadLocationException e) {
            throw new IllegalStateException("Invalid location for linked mode regions", e);
        }
    }

    public RedEditorLinkedModeUI(final LinkedModeModel model, final ITextViewer... viewers) {
        super(model, viewers);
    }
}