jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/orm/details/MetadataCompleteComposite.java

/*******************************************************************************
 * Copyright (c) 2009 Oracle. 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:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.ui.internal.orm.details;

import org.eclipse.jpt.core.context.orm.OrmTypeMapping;
import org.eclipse.jpt.ui.internal.orm.JptUiOrmMessages;
import org.eclipse.jpt.ui.internal.widgets.FormPane;
import org.eclipse.jpt.utility.internal.model.value.PropertyAspectAdapter;
import org.eclipse.jpt.utility.internal.model.value.TransformationPropertyValueModel;
import org.eclipse.jpt.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.utility.model.value.WritablePropertyValueModel;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.widgets.Composite;

public class MetadataCompleteComposite extends FormPane<OrmTypeMapping> {

	public MetadataCompleteComposite(FormPane<?> parentPane,
	                           PropertyValueModel<? extends OrmTypeMapping> subjectHolder,
	                           Composite parent) {

		super(parentPane, subjectHolder, parent);
	}

	@Override
	protected void initializeLayout(Composite container) {

		addTriStateCheckBoxWithDefault(
			container,
			JptUiOrmMessages.MetadataCompleteComposite_metadataComplete,
			buildMetadataCompleteHolder(),
			buildMetadataCompleteStringHolder(),
			null
		);
	}
	
	private WritablePropertyValueModel<Boolean> buildMetadataCompleteHolder() {
		return new PropertyAspectAdapter<OrmTypeMapping, Boolean>(
			getSubjectHolder(),
			OrmTypeMapping.DEFAULT_METADATA_COMPLETE_PROPERTY,
			OrmTypeMapping.SPECIFIED_METADATA_COMPLETE_PROPERTY)
		{
			@Override
			protected Boolean buildValue_() {
				return this.subject.getSpecifiedMetadataComplete();
			}

			@Override
			protected void setValue_(Boolean value) {
				this.subject.setSpecifiedMetadataComplete(value);
			}

			@Override
			protected void subjectChanged() {
				Object oldValue = this.getValue();
				super.subjectChanged();
				Object newValue = this.getValue();

				// Make sure the default value is appended to the text
				if (oldValue == newValue && newValue == null) {
					this.fireAspectChange(Boolean.TRUE, newValue);
				}
			}
		};
	}

	private PropertyValueModel<String> buildMetadataCompleteStringHolder() {

		return new TransformationPropertyValueModel<Boolean, String>(buildMetadataCompleteHolder()) {

			@Override
			protected String transform(Boolean value) {

				if ((getSubject() != null) && (value == null)) {

					boolean defaultValue = getSubject().isDefaultMetadataComplete();
					String defaultStringValue = defaultValue ? JptUiOrmMessages.Boolean_True :
						                                           JptUiOrmMessages.Boolean_False;

					return NLS.bind(
						JptUiOrmMessages.MetadataCompleteComposite_metadataCompleteWithDefault,
						defaultStringValue
					);
				}

				return JptUiOrmMessages.MetadataCompleteComposite_metadataComplete;
			}
		};
	}

}