/*
Copyright (C) 2009 by Claas Wilke (claaswilke@gmx.net).
This file is part of the Model Bus GUI 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 org.dresdenocl.modelbus.ui.internal.wizards.util;
import org.eclipse.jface.resource.ImageDescriptor;
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.swt.graphics.Image;
import org.dresdenocl.model.metamodel.IMetamodel;
import org.dresdenocl.modelbus.metamodel.IMetamodelDescriptor;
/**
* <p>
* A {@link LabelProvider} to display {@link IMetamodel}s.
* </p>
*/
public class MetaModelLabelProvider extends LabelProvider implements
ILabelProvider {
/** A helper object to manage associated icons. */
private ResourceManager resources;
/**
* <p>
* Creates a new {@link MetaModelLabelProvider}.
* </p>
*/
public MetaModelLabelProvider() {
this.resources = new LocalResourceManager(JFaceResources.getResources());
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.BaseLabelProvider#dispose()
*/
@Override
public void dispose() {
this.resources.dispose();
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object)
*/
@Override
public Image getImage(Object element) {
Image result;
/*
* Check if the meta model has been added and configured via the metamodels
* extension point.
*/
if (element instanceof IMetamodelDescriptor) {
IMetamodelDescriptor metamodel;
metamodel = (IMetamodelDescriptor) element;
ImageDescriptor imageDescriptor;
imageDescriptor =
ImageDescriptor.createFromURL(((IMetamodelDescriptor) metamodel)
.getIconURL());
if (imageDescriptor == null) {
imageDescriptor = ImageDescriptor.getMissingImageDescriptor();
}
// no else.
result = this.resources.createImage(imageDescriptor);
}
else {
result = null;
}
return result;
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
*/
@Override
public String getText(Object element) {
IMetamodel metamodel;
metamodel = (IMetamodel) element;
return metamodel.getName();
}
}