cn.edu.pku.ogeditor.views.ConceptOutlineView.java Source code

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Here is the source code for cn.edu.pku.ogeditor.views.ConceptOutlineView.java

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/*******************************************************************************
 * 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:
?*******************************************************************************/
package cn.edu.pku.ogeditor.views;

import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.part.ViewPart;

import cn.edu.pku.ogeditor.MultiPageEditor;
import cn.edu.pku.ogeditor.ShapesEditor;

/**
 * the outline view of the concepts
 * @author Tao Wu
 */
public class ConceptOutlineView extends ViewPart implements ISelectionListener {

    private TreeViewer tv;

    @Override
    public void createPartControl(Composite parent) {
        // TODO Auto-generated method stub
        tv = new TreeViewer(parent, SWT.BORDER);
        tv.setContentProvider(new ConceptOutlineContentProvider());
        tv.setLabelProvider(new ConceptOutlineLabelProvider());
        ShapesEditor editor = null;
        if ((editor = getShapesEditor()) != null) {
            tv.setInput(editor.getDiagram());
        }
        getSite().getPage().addSelectionListener(this);

    }

    private ShapesEditor getShapesEditor() {
        // TODO Auto-generated method stub
        IEditorPart curEditor = getSite().getPage().getActiveEditor();
        if (curEditor instanceof MultiPageEditor)
            return ((MultiPageEditor) curEditor).getShapesEditor();
        else
            return null;
    }

    @Override
    public void setFocus() {
        // TODO Auto-generated method stub

    }

    @Override
    public void selectionChanged(IWorkbenchPart part, ISelection selection) {
        // TODO Auto-generated method stub
        if (part instanceof IEditorPart) {
            ShapesEditor editor = null;
            if ((editor = getShapesEditor()) != null) {
                tv.setInput(editor.getDiagram());
            } else
                tv.setInput(null);
        }
    }
}