jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/editpolicies/ColumnHelper.java

/*******************************************************************************
 * Copyright (c) 2006 Sybase, Inc. and others.
 *
 * 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:
 *     Sybase, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.jst.pagedesigner.editpolicies;

import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.LayoutManager;
import org.eclipse.draw2d.geometry.Insets;
import org.eclipse.draw2d.geometry.PrecisionRectangle;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.jst.pagedesigner.css2.layout.CSSFigure;
import org.eclipse.jst.pagedesigner.css2.layout.table.CSSTableLayout2;

/**
 * @author mengbo
 */
public class ColumnHelper {
    
    /**
     * @param editPart
     * @return a rectangle that bounds the actual visual rectangle of the column represented
     * by editPart.  The editPart's figure normally only maps to the td in the rendered table.
     * 
     * The rectangle is translated to absolute bounds
     */
    public static Rectangle getAdjustedColumnBoundingRectangle(GraphicalEditPart editPart)
    {
        Rectangle bounds = editPart.getFigure().getBounds().getCopy();

        if (editPart.getParent() != null) {
            IFigure figure = ((GraphicalEditPart) editPart.getParent())
                    .getFigure();
            if (figure instanceof CSSFigure) {
                CSSFigure cssFigure = (CSSFigure) figure;
                LayoutManager layoutManager = cssFigure.getLayoutManager();
                if (layoutManager instanceof CSSTableLayout2) {
                    CSSTableLayout2 tableLayout = (CSSTableLayout2) layoutManager;
                    bounds.y = tableLayout.getHSpacing();
                    bounds.height = figure.getClientArea().height
                            - tableLayout.getHSpacing() * 2;
                }
            }
        }
        bounds = new PrecisionRectangle(bounds.getResized(-1, -1));
        editPart.getFigure().translateToAbsolute(bounds);
        
        return bounds;
    }
    
	public static Rectangle getColumnBounds(GraphicalEditPart editPart,
			IFigure target) {
	    Rectangle bounds = getAdjustedColumnBoundingRectangle(editPart);
        target.translateToRelative(bounds);
        Insets insets = target.getInsets();
		bounds.translate(-insets.left, -insets.top);
		bounds.resize(insets.getWidth() + 1, insets.getHeight() + 1);
		return bounds;
	}
}