examples/org.eclipse.gmf.examples.taipan.gmf.editor/src/org/eclipse/gmf/examples/taipan/gmf/editor/edit/parts/PortEditPart.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.edit.parts;

import java.util.Collections;
import java.util.List;

import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.PositionConstants;
import org.eclipse.draw2d.Shape;
import org.eclipse.draw2d.StackLayout;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EcorePackage;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.EditPolicy;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.LayoutEditPolicy;
import org.eclipse.gef.editpolicies.NonResizableEditPolicy;
import org.eclipse.gef.editpolicies.ResizableEditPolicy;
import org.eclipse.gef.handles.MoveHandle;
import org.eclipse.gef.requests.CreateRequest;
import org.eclipse.gmf.examples.taipan.figures.PortShape;
import org.eclipse.gmf.examples.taipan.gmf.editor.edit.policies.OpenDiagramEditPolicy;
import org.eclipse.gmf.examples.taipan.gmf.editor.edit.policies.PortItemSemanticEditPolicy;
import org.eclipse.gmf.examples.taipan.gmf.editor.part.TaiPanVisualIDRegistry;
import org.eclipse.gmf.runtime.diagram.ui.editparts.AbstractBorderedShapeEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IBorderItemEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.BorderItemSelectionEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles;
import org.eclipse.gmf.runtime.diagram.ui.figures.BorderItemLocator;
import org.eclipse.gmf.runtime.gef.ui.figures.DefaultSizeNodeFigure;
import org.eclipse.gmf.runtime.gef.ui.figures.NodeFigure;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.swt.graphics.Color;

/**
 * @generated
 */
public class PortEditPart extends AbstractBorderedShapeEditPart {

	/**
	* @generated
	*/
	public static final int VISUAL_ID = 2001;

	/**
	* @generated
	*/
	protected IFigure contentPane;

	/**
	* @generated
	*/
	protected IFigure primaryShape;

	/**
	* @generated
	*/
	public PortEditPart(View view) {
		super(view);
	}

	/**
	* @generated
	*/
	protected void createDefaultEditPolicies() {
		super.createDefaultEditPolicies();
		installEditPolicy(EditPolicyRoles.SEMANTIC_ROLE, new PortItemSemanticEditPolicy());
		installEditPolicy(EditPolicy.LAYOUT_ROLE, createLayoutEditPolicy());
		installEditPolicy(EditPolicyRoles.OPEN_ROLE, new OpenDiagramEditPolicy());
		// XXX need an SCR to runtime to have another abstract superclass that would let children add reasonable editpolicies
		// removeEditPolicy(org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles.CONNECTION_HANDLES_ROLE);
	}

	/**
	* @generated
	*/
	protected LayoutEditPolicy createLayoutEditPolicy() {
		org.eclipse.gmf.runtime.diagram.ui.editpolicies.LayoutEditPolicy lep = new org.eclipse.gmf.runtime.diagram.ui.editpolicies.LayoutEditPolicy() {

			protected EditPolicy createChildEditPolicy(EditPart child) {
				View childView = (View) child.getModel();
				switch (TaiPanVisualIDRegistry.getVisualID(childView)) {
				case PortLocationEditPart.VISUAL_ID:
					return new BorderItemSelectionEditPolicy() {

						protected List createSelectionHandles() {
							MoveHandle mh = new MoveHandle((GraphicalEditPart) getHost());
							mh.setBorder(null);
							return Collections.singletonList(mh);
						}
					};
				}
				EditPolicy result = child.getEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE);
				if (result == null) {
					result = new NonResizableEditPolicy();
				}
				return result;
			}

			protected Command getMoveChildrenCommand(Request request) {
				return null;
			}

			protected Command getCreateCommand(CreateRequest request) {
				return null;
			}
		};
		return lep;
	}

	/**
	* @generated
	*/
	protected IFigure createNodeShape() {
		return primaryShape = new PortShape();
	}

	/**
	* @generated
	*/
	public PortShape getPrimaryShape() {
		return (PortShape) primaryShape;
	}

	/**
	* @generated
	*/
	protected void addBorderItem(IFigure borderItemContainer, IBorderItemEditPart borderItemEditPart) {
		if (borderItemEditPart instanceof PortLocationEditPart) {
			BorderItemLocator locator = new BorderItemLocator(getMainFigure(), PositionConstants.SOUTH);
			locator.setBorderItemOffset(new Dimension(-20, -20));
			borderItemContainer.add(borderItemEditPart.getFigure(), locator);
		} else {
			super.addBorderItem(borderItemContainer, borderItemEditPart);
		}
	}

	/**
	* @generated
	*/
	protected NodeFigure createNodePlate() {
		DefaultSizeNodeFigure result = new DefaultSizeNodeFigure(60, 50);
		return result;
	}

	/**
	* @generated
	*/
	public EditPolicy getPrimaryDragEditPolicy() {
		EditPolicy result = super.getPrimaryDragEditPolicy();
		if (result instanceof ResizableEditPolicy) {
			ResizableEditPolicy ep = (ResizableEditPolicy) result;
			ep.setResizeDirections(PositionConstants.NONE);
		}
		return result;
	}

	/**
	* Creates figure for this edit part.
	* 
	* Body of this method does not depend on settings in generation model
	* so you may safely remove <i>generated</i> tag and modify it.
	* 
	* @generated
	*/
	protected NodeFigure createMainFigure() {
		NodeFigure figure = createNodePlate();
		figure.setLayoutManager(new StackLayout());
		IFigure shape = createNodeShape();
		figure.add(shape);
		contentPane = setupContentPane(shape);
		return figure;
	}

	/**
	* Default implementation treats passed figure as content pane.
	* Respects layout one may have set for generated figure.
	* @param nodeShape instance of generated figure class
	* @generated
	*/
	protected IFigure setupContentPane(IFigure nodeShape) {
		return nodeShape; // use nodeShape itself as contentPane
	}

	/**
	* @generated
	*/
	public IFigure getContentPane() {
		if (contentPane != null) {
			return contentPane;
		}
		return super.getContentPane();
	}

	/**
	* @generated
	*/
	protected void setForegroundColor(Color color) {
		if (primaryShape != null) {
			primaryShape.setForegroundColor(color);
		}
	}

	/**
	* @generated
	*/
	protected void setBackgroundColor(Color color) {
		if (primaryShape != null) {
			primaryShape.setBackgroundColor(color);
		}
	}

	/**
	* @generated
	*/
	protected void setLineWidth(int width) {
		if (primaryShape instanceof Shape) {
			((Shape) primaryShape).setLineWidth(width);
		}
	}

	/**
	* @generated
	*/
	protected void setLineType(int style) {
		if (primaryShape instanceof Shape) {
			((Shape) primaryShape).setLineStyle(style);
		}
	}

	/**
	* @generated
	*/
	public EditPart getPrimaryChildEditPart() {
		return getChildBySemanticHint(TaiPanVisualIDRegistry.getType(PortLocationEditPart.VISUAL_ID));
	}

	/**
	* @generated
	*/
	protected void handleNotificationEvent(Notification event) {
		if (event.getNotifier() == getModel() && EcorePackage.eINSTANCE.getEModelElement_EAnnotations().equals(event.getFeature())) {
			handleMajorSemanticChange();
		} else {
			super.handleNotificationEvent(event);
		}
	}

}