U2TResizeHandle.java

/*
 * Copyright (c) 2009 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
 *
 */
package org.eclipse.uml2.diagram.common.internal.draw2d.handles;

import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Cursors;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.handles.RelativeHandleLocator;
import org.eclipse.gef.handles.ResizeHandle;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.NotationPackage;
import org.eclipse.gmf.runtime.notation.Size;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Cursor;

public class U2TResizeHandle extends ResizeHandle {

	public U2TResizeHandle(GraphicalEditPart owner, RelativeHandleLocator locator, Cursor cursor) {
		super(owner, locator, cursor);
	}

	public U2TResizeHandle(GraphicalEditPart owner, int direction) {
		this(owner, direction, 3);
	}

	public U2TResizeHandle(GraphicalEditPart owner, int direction, int shift) {
		this(owner, new U2TRelativeHandleLocator(owner.getFigure(), direction, shift), Cursors.getDirectionalCursor(direction));
	}

	protected Color getBorderColor() {
		return (isPrimary()) ? ColorConstants.white : U2THandleKit.SELECTION_COLOR;
	}

	protected Color getFillColor() {
		return (isPrimary()) ? U2THandleKit.SELECTION_COLOR : ColorConstants.white;
	}

	public void setAccessible(boolean b) {
		myIsAccessible = b;
	}

	public Point getAccessibleLocation() {
		if (!myIsAccessible) {
			return null;
		}
		return super.getAccessibleLocation();
	}

	protected boolean hasUserBounds() {
		IGraphicalEditPart ownerImpl = (IGraphicalEditPart) getOwner();
		View view = ownerImpl.getNotationView();
		if (view instanceof Node) {
			Node node = (Node) view;
			if (node.getLayoutConstraint() instanceof Size) {
				Size size = (Size) node.getLayoutConstraint();
				return size.eIsSet(NotationPackage.eINSTANCE.getSize_Width()) || size.eIsSet(NotationPackage.eINSTANCE.getSize_Height());
			}
		}
		return false;
	}

	private boolean myIsAccessible = true;
}