org.eclipse.fmc.blockdiagram.editor.meta/src/org/eclipse/fmc/blockdiagram/editor/meta/features/TextDirectEditingMetaFeature.java

/*******************************************************************************
 * <copyright>
 *
 * Copyright (c) 2013, 2013 SAP AG.
 * 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:
 *    SAP AG - initial API, implementation and documentation
 *
 * </copyright>
 *
 *******************************************************************************/
package org.eclipse.fmc.blockdiagram.editor.meta.features;

import org.eclipse.fmc.blockdiagram.editor.meta.profile.IStereotypeProvider;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.IDirectEditingContext;
import org.eclipse.graphiti.mm.algorithms.AbstractText;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.fmc.blockdiagram.editor.util.FMCUtil;
import org.eclipse.fmc.mm.FMCElement;

/**
 * Feature Class for editing the text of a business object.
 * 
 * @author Patrick Jahnke
 * 
 */
public class TextDirectEditingMetaFeature extends
	org.eclipse.fmc.blockdiagram.editor.features.TextDirectEditingFeature {

	/**
	 * The stereotype provider (is not null only if the Stereotype Extension is
	 * installed).
	 */
	private IStereotypeProvider stereotypeProvider;

	/**
	 * Instantiates a new TextDirectEditingMetaFeature.
	 * 
	 * @param fp
	 *            the FeatureProvider Class.
	 * @param stereotypeProvider
	 *            the StereotypeProvider Class.
	 */
	public TextDirectEditingMetaFeature(IFeatureProvider fp,
			IStereotypeProvider stereotypeProvider) {
		super(fp);
		this.stereotypeProvider = stereotypeProvider;
	}

	/**
	 * Instantiate and call the TextDirectEditingVisitor.
	 */
	@Override
	public void setValue(String value, IDirectEditingContext context) {
		FMCElement element = (FMCElement) FMCUtil
				.getBO((PictogramElement) context.getPictogramElement());

		TextDirectEditingVisitor visitor = new TextDirectEditingVisitor(context);
		visitor.visit(element, value);

		if (stereotypeProvider != null)
			value = stereotypeProvider.getStereotypeText(element) + value;
		super.setValue(value, context);
	}

	/**
	 * Get the initial Value when the direct Text editing phase begins.
	 */
	@Override
	public String getInitialValue(IDirectEditingContext context) {
		AbstractText text = getText(context);
		if (text != null) {
			String value = text.getValue();
			if (stereotypeProvider != null)
				value = FMCUtil.substringStereotype(value);
			return value;
		} else
			return "";
	}
}