examples/org.eclipse.gmf.sketch.edit/src/org/eclipse/gmf/sketch/provider/SketchLabelItemProvider.java

/*
 * Copyright (c) 2007 Borland Software Corporation
 * 
 * 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:
 *    Dmitry Stadnik (Borland) - initial API and implementation
 */
package org.eclipse.gmf.sketch.provider;

import java.util.Collection;
import java.util.List;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;

import org.eclipse.emf.common.util.ResourceLocator;

import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;

import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ViewerNotification;
import org.eclipse.gmf.sketch.SketchLabel;
import org.eclipse.gmf.sketch.SketchPackage;

/**
 * This is the item provider adapter for a {@link org.eclipse.gmf.sketch.SketchLabel} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class SketchLabelItemProvider extends SketchDiagramElementItemProvider implements IEditingDomainItemProvider, IStructuredItemContentProvider, ITreeItemContentProvider, IItemLabelProvider, IItemPropertySource {

	/**
	 * This constructs an instance from a factory and a notifier.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public SketchLabelItemProvider(AdapterFactory adapterFactory) {
		super(adapterFactory);
	}

	/**
	 * This returns the property descriptors for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
		if (itemPropertyDescriptors == null) {
			super.getPropertyDescriptors(object);

			addAttributesPropertyDescriptor(object);
			addExternalPropertyDescriptor(object);
		}
		return itemPropertyDescriptors;
	}

	/**
	 * This adds a property descriptor for the Attributes feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addAttributesPropertyDescriptor(Object object) {
		itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(), getResourceLocator(), getString("_UI_SketchLabel_attributes_feature"), //$NON-NLS-1$
				getString("_UI_PropertyDescriptor_description", "_UI_SketchLabel_attributes_feature", "_UI_SketchLabel_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
				SketchPackage.Literals.SKETCH_LABEL__ATTRIBUTES, true, false, true, null, null, null));
	}

	/**
	 * This adds a property descriptor for the External feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addExternalPropertyDescriptor(Object object) {
		itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory(), getResourceLocator(), getString("_UI_SketchLabel_external_feature"), //$NON-NLS-1$
				getString("_UI_PropertyDescriptor_description", "_UI_SketchLabel_external_feature", "_UI_SketchLabel_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
				SketchPackage.Literals.SKETCH_LABEL__EXTERNAL, true, false, false, ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE, null, null));
	}

	/**
	 * This returns SketchLabel.gif.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object getImage(Object object) {
		return overlayImage(object, getResourceLocator().getImage("full/obj16/SketchLabel")); //$NON-NLS-1$
	}

	/**
	 * This returns the label text for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public String getTextGen(Object object) {
		String label = ((SketchLabel) object).getName();
		return label == null || label.length() == 0 ? getString("_UI_SketchLabel_type") : //$NON-NLS-1$
				getString("_UI_SketchLabel_type") + " " + label; //$NON-NLS-1$ //$NON-NLS-2$
	}

	@Override
	public String getText(Object object) {
		StringBuilder sb = new StringBuilder();
		sb.append(getTextGen(object));
		sb.append(' ');
		sb.append('[');
		boolean empty = true;
		for (EAttribute attribute : ((SketchLabel) object).getAttributes()) {
			if (empty) {
				empty = false;
			} else {
				sb.append(',');
				sb.append(' ');
			}
			sb.append(attribute.getName());
		}
		sb.append(']');
		sb.append(' ');
		sb.append(((SketchLabel) object).getVisualID());
		return sb.toString();
	}

	/**
	 * This handles model notifications by calling {@link #updateChildren} to update any cached
	 * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void notifyChanged(Notification notification) {
		updateChildren(notification);

		switch (notification.getFeatureID(SketchLabel.class)) {
		case SketchPackage.SKETCH_LABEL__EXTERNAL:
			fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
			return;
		}
		super.notifyChanged(notification);
	}

	/**
	 * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s describing the children
	 * that can be created under this object.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected void collectNewChildDescriptors(Collection<Object> newChildDescriptors, Object object) {
		super.collectNewChildDescriptors(newChildDescriptors, object);
	}

	/**
	 * Return the resource locator for this item provider's resources.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public ResourceLocator getResourceLocator() {
		return SketchEditPlugin.INSTANCE;
	}

}