/*
    * @(#)TablePanel.java Sep 21, 2003
    * 
    * Copyright (c) 2003 Delft University of Technology Jaffalaan 5, 2628 BX Delft,
    * the Netherlands All rights reserved.
    * 
    * This software is proprietary information of Delft University of Technology
    * The code is published under the General Public License
    */
  package nl.tudelft.simulation.dsol.gui.panels;
  
  import info.clearthought.layout.TableLayout;
  import info.clearthought.layout.TableLayoutConstants;
  
  import java.awt.Component;
  import java.awt.Point;
  
  import javax.swing.JPanel;
  import javax.swing.table.DefaultTableModel;
  
  
  /***
   * The tablePanel provides an easy to access table for the DSOL Framework <br>
   * (c) copyright 2003 <a href="http://www.simulation.tudelft.nl">Delft
   * University of Technology </a>, the Netherlands. <br>
   * See for project information <a href="http://www.simulation.tudelft.nl">
   * www.simulation.tudelft.nl </a> <br>
   * License of use: <a href="http://www.gnu.org/copyleft/gpl.html">General Public
   * License (GPL) </a>, no warranty <br>
   * 
   * @version 2.0 21.09.2003 <br>
   * @author <a href="http://www.tbm.tudelft.nl/webstaf/peterja/index.htm">Peter
   *         Jacobs </a>
   */
  public class TablePanel extends JPanel
  {
  	/*** the content of the tablePanel */
  	private DefaultTableModel content = null;
  
  	/***
  	 * Constructor for TablePanel.
  	 * 
  	 * @param columns the amount of columns
  	 * @param rows the amount of rows
  	 */
  	public TablePanel(final int rows, final int columns)
  	{
  		super();
  		this.content = new DefaultTableModel(rows, columns);
  	}
  
  	/***
  	 * adds a row to the tablePanel
  	 */
  	public void addRow()
  	{
  		this.content.addRow((Object[]) null);
  		this.validate();
  	}
  
  	/***
  	 * adds a column to the tablePanel
  	 */
  	public void addColumn()
  	{
  		this.content.addColumn((Object[]) null);
  		this.validate();
  	}
  
  	/***
  	 * deletes a row from the contentpanel
  	 */
  	public void deleteRow()
  	{
  		if (this.content.getRowCount() == 1)
  		{
  			return;
  		}
  		this.content.removeRow(this.content.getRowCount() - 1);
  		this.validate();
  	}
  
  	/***
  	 * deletes a column from the tablePanel
  	 */
  	public void deleteColumn()
  	{
  		if (this.content.getColumnCount() == 1)
  		{
  			return;
  		}
  		DefaultTableModel result = new DefaultTableModel(this.content
  				.getRowCount(), this.content.getColumnCount() - 1);
  		for (int rows = 0; rows < this.content.getRowCount(); rows++)
  		{
  			for (int cols = 0; cols < this.content.getColumnCount() - 1; cols++)
  			{
  				result.setValueAt(this.content.getValueAt(rows, cols), rows,
  						cols);
 			}
 		}
 		this.content = result;
 		this.validate();
 	}
 
 	/***
 	 * returns the row of a specific point
 	 * 
 	 * @param point the xy-point
 	 * @return int the row
 	 */
 	public int getRow(final Point point)
 	{
 		double heigth = this.getHeight() / (double) this.getRows();
 		return (int) Math.floor(point.getY() / heigth);
 	}
 
 	/***
 	 * returns the column of a point on the panel
 	 * 
 	 * @param point the x-y point
 	 * @return int the column
 	 */
 	public int getColumn(final Point point)
 	{
 		double width = this.getWidth() / (double) this.getColumns();
 		return (int) Math.floor(point.getX() / width);
 	}
 
 	/***
 	 * Method setCell.
 	 * 
 	 * @param container the subject of the cell
 	 * @param row of the cell
 	 * @param column of the cell
 	 */
 	public void setCell(final Component container, final int row,
 			final int column)
 	{
 		this.content.setValueAt(container, row, column);
 		this.validate();
 	}
 
 	/***
 	 * contains this container
 	 * 
 	 * @param container contains the container..
 	 * @return boolean
 	 */
 	public boolean contains(final Component container)
 	{
 		for (int c = 0; c < this.getColumns(); c++)
 		{
 			for (int r = 0; r < this.getRows(); r++)
 			{
 				if (this.getCell(r, c).equals(container))
 				{
 					return true;
 				}
 			}
 		}
 		return false;
 	}
 
 	/***
 	 * gets the container in a cell
 	 * 
 	 * @param row the row
 	 * @param column the column
 	 * @return Component
 	 */
 	public Component getCell(final int row, final int column)
 	{
 		double height = this.getHeight() / (double) this.getRows();
 		double width = this.getWidth() / (double) this.getColumns();
 		Point point = new Point((int) Math.round((column + 0.5) * width),
 				(int) Math.round((row + 0.5) * height));
 		return this.getComponentAt(point.x, point.y);
 	}
 
 	/***
 	 * removes the content of a cell
 	 * 
 	 * @param row the row
 	 * @param column the column
 	 */
 	public void removeCell(final int row, final int column)
 	{
 		this.remove(this.getCell(row, column));
 	}
 
 	/***
 	 * Method refractor computes the size
 	 * 
 	 * @param number refers to the number of rows/columns
 	 * @return double[] the result
 	 */
 	private double[] refractor(final int number)
 	{
 		double[] result = new double[number];
 		for (int i = 0; i < result.length; i++)
 		{
 			result[i] = 1.0 / number * 1.0;
 			if (result[i] == 1.0)
 			{
 				result[i] = TableLayoutConstants.FILL;
 			}
 		}
 		return result;
 	}
 
 	/***
 	 * returns the number of Columns
 	 * 
 	 * @return int
 	 */
 	public int getColumns()
 	{
 		return this.content.getColumnCount();
 	}
 
 	/***
 	 * returns the number of rows
 	 * 
 	 * @return int the number of rows
 	 */
 	public int getRows()
 	{
 		return this.content.getRowCount();
 	}
 
 	/***
 	 * @see java.awt.Component#validate()
 	 */
 	public void validate()
 	{
 		this.removeAll();
 		double[][] tableDefinition = {
 				this.refractor(this.content.getColumnCount()),
 				this.refractor(this.content.getRowCount())};
 		TableLayout layout = new TableLayout(tableDefinition);
 		this.setLayout(layout);
 		for (int rows = 0; rows < this.content.getRowCount(); rows++)
 		{
 			for (int cols = 0; cols < this.content.getColumnCount(); cols++)
 			{
 				Component component = (Component) this.content.getValueAt(rows,
 						cols);
 				if (component != null)
 				{
 					this.add(component, "" + cols + "," + rows + ",C,C");
 				}
 			}
 		}
 		super.validate();
 		super.repaint();
 	}
 }