org.eclipse.fmc.blockdiagram.editor/src/org/eclipse/fmc/blockdiagram/editor/features/resize/ResizeFeature.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.features.resize;

import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.IResizeShapeContext;
import org.eclipse.graphiti.features.impl.DefaultResizeShapeFeature;
import org.eclipse.graphiti.mm.algorithms.AbstractText;
import org.eclipse.graphiti.mm.algorithms.GraphicsAlgorithm;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
import org.eclipse.graphiti.mm.pictograms.Shape;
import org.eclipse.graphiti.services.Graphiti;

/**
 * Resize feature which automatically realigns the texts of the shapes.
 * 
 * @author Benjamin Schmeling
 * 
 */
public class ResizeFeature extends DefaultResizeShapeFeature {

	public ResizeFeature(IFeatureProvider fp) {
		super(fp);
	}

	@Override
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.graphiti.features.impl.DefaultResizeShapeFeature#resizeShape
	 * (org.eclipse.graphiti.features.context.IResizeShapeContext)
	 */
	public void resizeShape(IResizeShapeContext context) {
		int w, h;
		int maxW = 0;
		int maxH = 0;
		if (context.getShape() instanceof ContainerShape) {
			GraphicsAlgorithm sGa;
			for (Shape s : ((ContainerShape) context.getShape()).getChildren()) {
				sGa = s.getGraphicsAlgorithm();
				if (!(sGa instanceof AbstractText)) {
					if (sGa.getWidth() + sGa.getX() > maxW) {
						maxW = sGa.getWidth() + sGa.getX();
					}
					if (sGa.getHeight() + sGa.getY() > maxH) {
						maxH = sGa.getHeight() + sGa.getY();
					}
				}
			}
		}

		w = context.getWidth() >= maxW ? context.getWidth() : maxW;
		h = context.getHeight() >= maxH ? context.getHeight() : maxH;
		// ((ResizeShapeContext) context).setHeight(h);
		// ((ResizeShapeContext) context).setWidth(w);
		if (context.getShape() instanceof ContainerShape) {
			for (Shape s : ((ContainerShape) context.getShape()).getChildren()) {
				if (s.getGraphicsAlgorithm() instanceof AbstractText
						&& !s.isActive()) {

					Graphiti.getGaService().setLocationAndSize(
							s.getGraphicsAlgorithm(), 5, 5, w - 5, h - 10);
				}
				/*
				 * else if (FMCUtil.getIndependentObject(context.getShape()) ==
				 * FMCType.HumanAgent || FMCUtil.getBO(context.getShape())
				 * instanceof HumanAgent) {
				 * 
				 * int oldWidth = s.getGraphicsAlgorithm().getWidth(); int
				 * oldHeight = s.getGraphicsAlgorithm().getHeight();
				 * Graphiti.getGaService().setLocation(
				 * s.getGraphicsAlgorithm(), w / 2 - 12, 10); }
				 */
			}
		}
		super.resizeShape(context);
	}
}