/*
 *  License (BSD Style License):
 *   Copyright (c) 2011
 *   Software Engineering
 *   Department of Computer Science
 *   Technische Universität Darmstadt
 *   All rights reserved.
 * 
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions are met:
 * 
 *   - Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *   - Neither the name of the Software Engineering Group or Technische 
 *     Universität Darmstadt nor the names of its contributors may be used to 
 *     endorse or promote products derived from this software without specific 
 *     prior written permission.
 * 
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 *   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *   POSSIBILITY OF SUCH DAMAGE.
 */
package de.tud.cs.st.vespucci.vespucci_model.diagram.providers;

import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.common.core.service.AbstractProvider;
import org.eclipse.gmf.runtime.common.core.service.IOperation;
import org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.ShapeEditPart;
import org.eclipse.gmf.runtime.diagram.ui.services.decorator.AbstractDecorator;
import org.eclipse.gmf.runtime.diagram.ui.services.decorator.CreateDecoratorsOperation;
import org.eclipse.gmf.runtime.diagram.ui.services.decorator.IDecoratorProvider;
import org.eclipse.gmf.runtime.diagram.ui.services.decorator.IDecoratorTarget;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.swt.graphics.Image;

/**
 * @generated
 */
public class VespucciShortcutsDecoratorProvider extends AbstractProvider
		implements IDecoratorProvider {

	/**
	 * @generated
	 */
	public static final String SHORTCUTS_DECORATOR_ID = "shortcuts"; //$NON-NLS-1$

	/**
	 * @generated
	 */
	public boolean provides(IOperation operation) {
		if (!(operation instanceof CreateDecoratorsOperation)) {
			return false;
		}
		IDecoratorTarget decoratorTarget = ((CreateDecoratorsOperation) operation)
				.getDecoratorTarget();
		View view = (View) decoratorTarget.getAdapter(View.class);
		return view != null
				&& de.tud.cs.st.vespucci.vespucci_model.diagram.edit.parts.ShapesDiagramEditPart.MODEL_ID
						.equals(de.tud.cs.st.vespucci.vespucci_model.diagram.part.VespucciVisualIDRegistry
								.getModelID(view));
	}

	/**
	 * @generated
	 */
	public void createDecorators(IDecoratorTarget decoratorTarget) {
		View view = (View) decoratorTarget.getAdapter(View.class);
		if (view != null) {
			EAnnotation annotation = view.getEAnnotation("Shortcut"); //$NON-NLS-1$
			if (annotation != null) {
				decoratorTarget.installDecorator(SHORTCUTS_DECORATOR_ID,
						new ShortcutsDecorator(decoratorTarget));
			}
		}
	}

	/**
	 * @generated
	 */
	protected class ShortcutsDecorator extends AbstractDecorator {

		/**
		 * @generated
		 */
		public ShortcutsDecorator(IDecoratorTarget decoratorTarget) {
			super(decoratorTarget);
		}

		/**
		 * @generated
		 */
		public void activate() {
			refresh();
		}

		/**
		 * @generated
		 */
		public void refresh() {
			removeDecoration();
			EditPart editPart = (EditPart) getDecoratorTarget().getAdapter(
					EditPart.class);
			Image image = de.tud.cs.st.vespucci.vespucci_model.diagram.part.VespucciDiagramEditorPlugin
					.getInstance().getBundledImage("icons/shortcut.gif"); //$NON-NLS-1$
			if (editPart instanceof ShapeEditPart) {
				setDecoration(getDecoratorTarget().addShapeDecoration(image,
						IDecoratorTarget.Direction.SOUTH_WEST, 0, false));
			} else if (editPart instanceof ConnectionEditPart) {
				setDecoration(getDecoratorTarget().addConnectionDecoration(
						image, 50, false));
			}
		}

	}

}