/*
 *  JFLAP - Formal Languages and Automata Package
 * 
 * 
 *  Susan H. Rodger
 *  Computer Science Department
 *  Duke University
 *  August 27, 2009

 *  Copyright (c) 2002-2009
 *  All rights reserved.

 *  JFLAP is open source software. Please see the LICENSE for terms.
 *
 */





package gui.grammar.parse;

import grammar.parse.LLParseTable;
import gui.LeftTable;
import gui.environment.Universe;

import java.awt.Color;
import java.awt.Component;
import javax.swing.*;
import javax.swing.table.*;

/**
 * This holds a LL parse table.
 * 
 * @author Thomas Finley
 */

public class LLParseTablePane extends LeftTable {
	/**
	 * Instantiates a new parse table pane for a parse table.
	 * 
	 * @param table
	 *            the table pane's parse table
	 */
	public LLParseTablePane(LLParseTable table) {
		super(table);
		this.table = table;
		setCellSelectionEnabled(true);

		for (int i = 1; i < getColumnCount(); i++)
			getColumnModel().getColumn(i).setCellRenderer(RENDERER);
	}

	/**
	 * Retrieves the parse table in this pane.
	 * 
	 * @return the parse table in this pane
	 */
	public LLParseTable getParseTable() {
		return table;
	}

	/** The parse table for this pane. */
	private LLParseTable table;

	/**
	 * The modified table cell renderer.
	 */
	private static class LambdaCellRenderer extends DefaultTableCellRenderer {
		public Component getTableCellRendererComponent(JTable table,
				Object value, boolean isSelected, boolean hasFocus, int row,
				int column) {
			JLabel l = (JLabel) super.getTableCellRendererComponent(table,
					value, isSelected, hasFocus, row, column);
			if (hasFocus && table.isCellEditable(row, column))
				return l;
			l.setText(((String) value).replace('!', Universe.curProfile.getEmptyString().charAt(0)));
			return l;
		}
	}

	/** Modified to use the set renderer highlighter. */
	public void highlight(int row, int column) {
		highlight(row, column, THRG);
	}

	/** The built in highlight renderer generator. */
	private static final gui.HighlightTable.TableHighlighterRendererGenerator THRG = new TableHighlighterRendererGenerator() {
		public TableCellRenderer getRenderer(int row, int column) {
			if (renderer == null) {
				renderer = new LambdaCellRenderer();
				renderer.setBackground(new Color(255, 150, 150));
			}
			return renderer;
		}

		private DefaultTableCellRenderer renderer = null;
	};

	/** The sets cell renderer. */
	private static final TableCellRenderer RENDERER = new LambdaCellRenderer();
}