UMLNavigatorLabelProvider.java example

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modellipse-master
/*****************************************************************************
 * Copyright (c) 2010 CEA LIST.
 *
 *    
 * 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:
 *  Saadia Dhouib saadia.dhouib@cea.fr  
 *
 *****************************************************************************/
package org.eclipse.papyrus.uml.diagram.communication.navigator;

import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.jface.viewers.ITreePathLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.jface.viewers.ViewerLabel;
import org.eclipse.papyrus.uml.diagram.communication.edit.parts.ModelEditPart;
import org.eclipse.papyrus.uml.diagram.communication.part.UMLDiagramEditorPlugin;
import org.eclipse.papyrus.uml.diagram.communication.part.UMLVisualIDRegistry;
import org.eclipse.papyrus.uml.diagram.communication.providers.UMLElementTypes;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.navigator.ICommonContentExtensionSite;
import org.eclipse.ui.navigator.ICommonLabelProvider;

/**
 * @generated
 */
public class UMLNavigatorLabelProvider extends LabelProvider implements ICommonLabelProvider, ITreePathLabelProvider {

	/**
	 * @generated
	 */
	static {
		UMLDiagramEditorPlugin.getInstance().getImageRegistry().put("Navigator?UnknownElement", ImageDescriptor.getMissingImageDescriptor()); //$NON-NLS-1$
		UMLDiagramEditorPlugin.getInstance().getImageRegistry().put("Navigator?ImageNotFound", ImageDescriptor.getMissingImageDescriptor()); //$NON-NLS-1$
	}

	/**
	 * @generated
	 */
	public void updateLabel(ViewerLabel label, TreePath elementPath) {
		Object element = elementPath.getLastSegment();
		if(element instanceof UMLNavigatorItem && !isOwnView(((UMLNavigatorItem)element).getView())) {
			return;
		}
		label.setText(getText(element));
		label.setImage(getImage(element));
	}

	/**
	 * @generated
	 */
	public Image getImage(Object element) {
		if(element instanceof UMLNavigatorGroup) {
			UMLNavigatorGroup group = (UMLNavigatorGroup)element;
			return UMLDiagramEditorPlugin.getInstance().getBundledImage(group.getIcon());
		}

		if(element instanceof UMLNavigatorItem) {
			UMLNavigatorItem navigatorItem = (UMLNavigatorItem)element;
			if(!isOwnView(navigatorItem.getView())) {
				return super.getImage(element);
			}
			return getImage(navigatorItem.getView());
		}


		return super.getImage(element);
	}

	/**
	 * @generated
	 */
	public Image getImage(View view) {
		return getImage("Navigator?UnknownElement", null); //$NON-NLS-1$
	}

	/**
	 * @generated
	 */
	private Image getImage(String key, IElementType elementType) {
		ImageRegistry imageRegistry = UMLDiagramEditorPlugin.getInstance().getImageRegistry();
		Image image = imageRegistry.get(key);
		if(image == null && elementType != null && UMLElementTypes.isKnownElementType(elementType)) {
			image = UMLElementTypes.getImage(elementType);
			imageRegistry.put(key, image);
		}

		if(image == null) {
			image = imageRegistry.get("Navigator?ImageNotFound"); //$NON-NLS-1$
			imageRegistry.put(key, image);
		}
		return image;
	}

	/**
	 * @generated
	 */
	public String getText(Object element) {
		if(element instanceof UMLNavigatorGroup) {
			UMLNavigatorGroup group = (UMLNavigatorGroup)element;
			return group.getGroupName();
		}

		if(element instanceof UMLNavigatorItem) {
			UMLNavigatorItem navigatorItem = (UMLNavigatorItem)element;
			if(!isOwnView(navigatorItem.getView())) {
				return null;
			}
			return getText(navigatorItem.getView());
		}


		return super.getText(element);
	}

	/**
	 * @generated
	 */
	public String getText(View view) {
		if(view.getElement() != null && view.getElement().eIsProxy()) {
			return getUnresolvedDomainElementProxyText(view);
		}
		return getUnknownElementText(view);
	}


	/**
	 * @generated
	 */
	private String getUnknownElementText(View view) {
		return "<UnknownElement Visual_ID = " + view.getType() + ">"; //$NON-NLS-1$  //$NON-NLS-2$
	}

	/**
	 * @generated
	 */
	private String getUnresolvedDomainElementProxyText(View view) {
		return "<Unresolved domain element Visual_ID = " + view.getType() + ">"; //$NON-NLS-1$  //$NON-NLS-2$
	}

	/**
	 * @generated
	 */
	public void init(ICommonContentExtensionSite aConfig) {
	}

	/**
	 * @generated
	 */
	public void restoreState(IMemento aMemento) {
	}

	/**
	 * @generated
	 */
	public void saveState(IMemento aMemento) {
	}

	/**
	 * @generated
	 */
	public String getDescription(Object anElement) {
		return null;
	}

	/**
	 * @generated
	 */
	private boolean isOwnView(View view) {
		return ModelEditPart.MODEL_ID.equals(UMLVisualIDRegistry.getModelID(view));
	}

}