com.netxforge.netxstudio.screens.ch9.ExpressionsLabelProvider.java Source code

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Here is the source code for com.netxforge.netxstudio.screens.ch9.ExpressionsLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 20 nov. 2012 NetXForge.
 * 
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details. You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>
 * 
 * Contributors: Christophe Bouhier - initial API and implementation and/or
 * initial documentation
 *******************************************************************************/
package com.netxforge.netxstudio.screens.ch9;

import org.eclipse.jface.viewers.CellLabelProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.graphics.Image;

import com.netxforge.netxstudio.common.model.StudioUtils;
import com.netxforge.netxstudio.library.Expression;

/**
 * 
 * @author Christophe Bouhier
 */
public class ExpressionsLabelProvider extends CellLabelProvider implements ITableLabelProvider {

    @Override
    public void update(ViewerCell cell) {
        String columnText = getColumnText(cell.getElement(), cell.getColumnIndex());
        cell.setText(columnText);
    }

    public String getColumnText(Object element, int columnIndex) {
        if (element instanceof Expression) {
            Expression expression = (Expression) element;
            switch (columnIndex) {
            case 0: {
                return "...[TODO]";
                // TODO Implement an Action to do a CDO XRef finding all
                // references and listing
                // then in a view. Or better, show-in references in a special
                // view.
            }
            case 1: {

                // Use a name provider....
                return expression.getName().startsWith(StudioUtils.GENERATED_EXPRESSION_PREFIX) ? "GENERATED"
                        : "USER ENTRY";
            }

            case 2: {
                if (expression.getName() != null) {
                    return expression.getName();
                }
            }
            case 3: {
                String expressionAsString = StudioUtils.expressionAsString(expression);
                return expressionAsString;
            }
            }
        }
        return "";
    }

    public Image getColumnImage(Object element, int columnIndex) {
        return null;
    }

}