examples/org.eclipse.gmf.examples.taipan.gmf.editor/src/org/eclipse/gmf/examples/taipan/gmf/editor/providers/TaiPanShortcutsDecoratorProvider.java

/*
* Copyright (c) 2006, 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.examples.taipan.gmf.editor.providers;

import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.examples.taipan.gmf.editor.edit.parts.AquatoryEditPart;
import org.eclipse.gmf.examples.taipan.gmf.editor.part.TaiPanDiagramEditorPlugin;
import org.eclipse.gmf.examples.taipan.gmf.editor.part.TaiPanVisualIDRegistry;
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 TaiPanShortcutsDecoratorProvider 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 && AquatoryEditPart.MODEL_ID.equals(TaiPanVisualIDRegistry.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 = TaiPanDiagramEditorPlugin.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));
			}
		}

	}

}