DecodedTableLabelProvider.java

/*
  DecodedTableLabelProvider.java

  (c) 2012-2013 Edward Swartz

  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 v9t9.gui.client.swt.shells.debugger;

import org.eclipse.jface.viewers.BaseLabelProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ITableColorProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;

import ejs.base.utils.HexUtils;

/**
 * @author ejs
 *
 */
public class DecodedTableLabelProvider extends BaseLabelProvider implements
		ITableLabelProvider, ITableColorProvider {

	private final ILabelProvider contentLabelProvider;
	private final int chunkSize;

	/**
	 * @param contentLabelProvider 
	 * 
	 */
	public DecodedTableLabelProvider(ILabelProvider contentLabelProvider, int chunkSize) {
		this.contentLabelProvider = contentLabelProvider;
		this.chunkSize = chunkSize;
	}

	@Override
	public Image getColumnImage(Object element, int columnIndex) {
		return null;
	}

	@Override
	public String getColumnText(Object element, int columnIndex) {
		DecodedRow row = (DecodedRow) element;
		IDecodedContent content = row.getContent();
		if (columnIndex == 0)
			 return HexUtils.toHex4(content.getAddr());
		if (columnIndex == 1) {
			StringBuilder sb = new StringBuilder();
			for (int i = 0; i < content.getSize(); i++) {
				if (i > 0 && i % chunkSize == 0)
					sb.append(' ');
				sb.append(HexUtils.toHex2(
						row.getBytes()[i]));
			}
			return sb.toString();
		}
		return contentLabelProvider.getText(content);
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableColorProvider#getForeground(java.lang.Object, int)
	 */
	@Override
	public Color getForeground(Object element, int columnIndex) {
		if (contentLabelProvider instanceof ITableColorProvider)
			return ((ITableColorProvider) contentLabelProvider).getForeground(element, columnIndex);
		return null;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableColorProvider#getBackground(java.lang.Object, int)
	 */
	@Override
	public Color getBackground(Object element, int columnIndex) {
		if (contentLabelProvider instanceof ITableColorProvider)
			return ((ITableColorProvider) contentLabelProvider).getBackground(element, columnIndex);
		return null;
	}

}