/** | |
* Copyright (c) 2009-2010 Thales Corporate Services S.A.S. | |
* This program and the accompanying materials | |
* are made available under the terms of the Eclipse Public License v2.0 | |
* which accompanies this distribution, and is available at | |
* https://www.eclipse.org/legal/epl-v2.0 | |
* | |
* SPDX-License-Identifier: EPL-2.0 | |
* | |
* Contributors: | |
* Thales Corporate Services S.A.S - initial API and implementation | |
*/ | |
package org.eclipse.egf.producer.ui.decorators; | |
import org.eclipse.egf.core.ui.EGFCoreUIPlugin; | |
import org.eclipse.egf.core.ui.IEGFCoreUIImages; | |
import org.eclipse.egf.model.fcore.Contract; | |
import org.eclipse.jface.resource.ImageDescriptor; | |
import org.eclipse.jface.viewers.IDecoration; | |
import org.eclipse.jface.viewers.ILabelProviderListener; | |
import org.eclipse.jface.viewers.ILightweightLabelDecorator; | |
/** | |
* Decorate ActivityContract with an overlay to enlight mandatory contract. | |
* | |
* @author Xavier Maysonnave | |
*/ | |
public class MandatoryLabelDecorator implements ILightweightLabelDecorator { | |
private ImageDescriptor _mandatoryImage; | |
/** | |
* @see org.eclipse.jface.viewers.ILightweightLabelDecorator#decorate(java.lang.Object, | |
* org.eclipse.jface.viewers.IDecoration) | |
*/ | |
public void decorate(Object element, IDecoration decoration) { | |
if (element instanceof Contract) { | |
Contract contract = (Contract) element; | |
if (contract.isMandatory()) { | |
decoration.addOverlay(getMandatoryImage()); | |
} | |
} | |
} | |
/** | |
* Return the image for the decoration that should be used to cue the user that a field is | |
* required. | |
* | |
* @return a not null image. | |
*/ | |
private ImageDescriptor getMandatoryImage() { | |
if (_mandatoryImage == null) { | |
_mandatoryImage = EGFCoreUIPlugin.getDefault().getImageDescriptor(IEGFCoreUIImages.IMG_MANDATORY); | |
} | |
return _mandatoryImage; | |
} | |
/** | |
* @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener) | |
*/ | |
public void addListener(ILabelProviderListener listener_p) { | |
// Do nothing. | |
} | |
/** | |
* @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose() | |
*/ | |
public void dispose() { | |
_mandatoryImage = null; | |
} | |
/** | |
* @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, | |
* java.lang.String) | |
*/ | |
public boolean isLabelProperty(Object element_p, String property_p) { | |
return false; | |
} | |
/** | |
* @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener) | |
*/ | |
public void removeListener(ILabelProviderListener listener_p) { | |
// Do nothing. | |
} | |
} |