content: package tim.prune.function.edit;
  
  import javax.swing.table.AbstractTableModel;
  
  import tim.prune.I18nManager;
  
  /**
   * Class to hold table model information for edit dialog
   */
  public class EditFieldsTableModel extends AbstractTableModel
  {
  	private final String[] _fieldNames;
  	private final String[] _originalValues;
  	private final String[] _fieldValues;
  	private final boolean[] _valueChanged;
  
  
  	/**
  	 * Constructor giving list size
  	 * @param inSize number of fields
  	 */
  	public EditFieldsTableModel(int inSize)
  	{
  		_fieldNames     = new String[inSize];
  		_originalValues = new String[inSize];
  		_fieldValues    = new String[inSize];
  		_valueChanged   = new boolean[inSize];
  	}
  
  	/**
  	 * Set the given data in the array
  	 * @param inName field name
  	 * @param inValue field value
  	 * @param inIndex index to place in array
  	 */
  	public void addFieldInfo(String inName, String inValue, int inIndex)
  	{
  		_fieldNames[inIndex] = inName;
  		_originalValues[inIndex] = inValue;
  		_fieldValues[inIndex] = inValue;
  		_valueChanged[inIndex] = false;
  	}
  
  	public int getColumnCount() {
  		return 2;
  	}
  
  	public int getRowCount() {
  		return _fieldNames.length;
  	}
  
  	public Object getValueAt(int inRowIndex, int inColumnIndex)
  	{
  		if (inColumnIndex == 0) {
  			return _fieldNames[inRowIndex];
  		}
  		return _fieldValues[inRowIndex];
  	}
  
  	/**
  	 * @return true if cell is editable
  	 */
  	public boolean isCellEditable(int inRowIndex, int inColumnIndex) {
  		return false;
  	}
  
  	/**
  	 * Set the given cell value
  	 */
  	public void setValueAt(Object inValue, int inRowIndex, int inColumnIndex) {
  		// ignore edits
  	}
  
  	/**
  	 * @return Class of cell data
  	 */
  	public Class<?> getColumnClass(int inColumnIndex)
  	{
  		if (inColumnIndex <= 1) {
  			return String.class;
  		}
  		return Boolean.class;
  	}
  
  	/**
  	 * Get the name of the column
  	 */
  	public String getColumnName(int inColNum)
  	{
  		if (inColNum == 0) {
  			return I18nManager.getText("dialog.pointedit.table.field");
  		}
  		return I18nManager.getText("dialog.pointedit.table.value");
  	}
  
  	/**
  	 * Update the value of the given row
  	 * @param inRowNum number of row, starting at 0
  	 * @param inValue new value
  	 */
  	public void updateValue(int inRowNum, String inValue)
  	{
  		String origValue = _originalValues[inRowNum];
  		String currValue = _fieldValues[inRowNum];
  		// Update model if changed from original value
  		_valueChanged[inRowNum] = areStringsDifferent(origValue, inValue);
  		// Update model if changed from current value
  		if (areStringsDifferent(currValue, inValue))
  		{
  			_fieldValues[inRowNum] = inValue;
  			fireTableRowsUpdated(inRowNum, inRowNum);
  		}
  	}
  
  	/**
  	 * Compare two strings to see if they're equal or not (nulls treated the same as empty strings)
  	 * @param inString1 first string
  	 * @param inString2 second string
  	 * @return true if the strings are different
  	 */
  	private static boolean areStringsDifferent(String inString1, String inString2)
  	{
  		// if both empty then same
  		if ((inString1 == null || inString1.equals(""))
  			&& (inString2 == null || inString2.equals("")))
  		{
  			return false;
  		}
  		return (inString1 == null || !inString1.equals(inString2));
  	}
  
  	/**
  	 * Get the value at the given index
  	 * @param inIndex index of field, starting at 0
  	 * @return string value
  	 */
  	public String getValue(int inIndex) {
  		return _fieldValues[inIndex];
  	}
  
  	/**
  	 * Get the changed flag at the given index
  	 * @param inIndex index of field, starting at 0
  	 * @return true if field changed
  	 */
  	public boolean getChanged(int inIndex) {
  		return _valueChanged[inIndex];
  	}
  }
  