tudresden.ocl20.pivot.tools.codegen.ui.impl.wizards.ConstraintLabelProvider.java Source code

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/*
Copyright (C) 2008-2009 by Claas Wilke (claaswilke@gmx.net)
    
This file is part of the OCL 2 Java Code Generator of Dresden OCL2 for Eclipse.
    
Dresden OCL2 for Eclipse is free software: you can redistribute it and/or modify 
it under the terms of the GNU Lesser General Public License as published by the 
Free Software Foundation, either version 3 of the License, or (at your option)
any later version.
    
Dresden OCL2 for Eclipse 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 Lesser General Public License 
for more details.
    
You should have received a copy of the GNU Lesser General Public License along 
with Dresden OCL2 for Eclipse. If not, see <http://www.gnu.org/licenses/>.
 */

package tudresden.ocl20.pivot.tools.codegen.ui.impl.wizards;

import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.graphics.Image;

import tudresden.ocl20.pivot.model.IModel;
import tudresden.ocl20.pivot.pivotmodel.Constraint;
import tudresden.ocl20.pivot.tools.codegen.ui.Ocl2CodeUIPlugIn;

/**
 * <p>
 * An class to provide labels for a {@link Viewer} which displays
 * {@link Constraint}s.
 * </p>
 * 
 * @author Claas Wilke
 */
public class ConstraintLabelProvider extends LabelProvider implements ILabelProvider {

    /** The icon to display {@link Constraint}s. */
    private static final String CONSTRAINT_IMAGE = "icons/ocl.gif";

    /** Helper object to manage associated icons. */
    private ResourceManager resources;

    /**
     * <p>
     * Creates a new {@link ConstraintLabelProvider}.
     * </p>
     */
    public ConstraintLabelProvider() {

        this.resources = new LocalResourceManager(JFaceResources.getResources());
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object)
     */
    @Override
    public Image getImage(Object element) {

        Image result;

        result = Ocl2CodeUIPlugIn.getImageDescriptor(CONSTRAINT_IMAGE).createImage();

        return result;
    }

    /**
     * <p>
     * Simply returns the name of the {@link IModel model}.
     * </p>
     */
    @Override
    public String getText(Object element) {

        String result;

        Constraint aConstraint;
        aConstraint = (Constraint) element;

        result = aConstraint.getSpecification().getBody().trim();

        return result;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.viewers.BaseLabelProvider#dispose()
     */
    @Override
    public void dispose() {

        this.resources.dispose();
    }
}