metabest.solver.ui.wizards.dnd.DropMetaModelElementTableTreeViewer.java Source code

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Here is the source code for metabest.solver.ui.wizards.dnd.DropMetaModelElementTableTreeViewer.java

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/*******************************************************************************
 * Copyright (c) 2015 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
 *******************************************************************************/
package metabest.solver.ui.wizards.dnd;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;

import metabup.metamodel.AnnotatedElement;
import metabup.metamodel.MetaModel;

public class DropMetaModelElementTableTreeViewer extends TreeViewer {
    List<AnnotatedElement> elements = new ArrayList<AnnotatedElement>();
    IStructuredSelection selection = null;
    MetaModel metamodel = null;

    /*public void refresh(MetaModel) {
       if(descriptions!=null){
     this.descriptions = descriptions;
     setInput(descriptions);
     refresh();
     expandAll();
       }
    }*/

    public void add(Object element) {
        System.out.println("i'm here");
        if (element instanceof AnnotatedElement) {
            System.out.println(" and yo no im're");
            elements.add((AnnotatedElement) element);
            setInput(elements);
        }

        refresh();
        expandAll();
    }

    public DropMetaModelElementTableTreeViewer(Composite parent, MetaModel metamodel) {
        super(parent);
        int operations = DND.DROP_COPY | DND.DROP_MOVE;
        Transfer[] transferTypes = new Transfer[] { TextTransfer.getInstance() };
        addDropSupport(operations, transferTypes, new MetaModelElementDropListener(this, metamodel));
        setContentProvider(new TableTreeContentProvider());
        setLabelProvider(new TableTreeLabelProvider());
        defineColumns(getTree());
        setInput(elements);
        expandAll();
    }

    private void defineColumns(Tree tree) {
        TreeColumn id = new TreeColumn(tree, SWT.LEFT);
        id.setAlignment(SWT.LEFT);
        id.setText("Element");
        id.setWidth(200);

        TreeColumn data = new TreeColumn(tree, SWT.LEFT);
        data.setAlignment(SWT.LEFT);
        data.setText("Type");
        data.setWidth(200);

        TreeColumn type = new TreeColumn(tree, SWT.LEFT);
        type.setAlignment(SWT.LEFT);
        type.setText("Min");
        type.setWidth(200);

        TreeColumn fragment = new TreeColumn(tree, SWT.LEFT);
        fragment.setAlignment(SWT.LEFT);
        fragment.setText("Max");
        fragment.setWidth(200);

        tree.setLinesVisible(true);
        tree.setHeaderVisible(true);
    }

    public List<AnnotatedElement> getSelectedElements() {
        if (elements.isEmpty())
            return null;
        return this.elements;
    }
}