// **********************************************************************
//
// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
package IceGridGUI.Application;

import IceGrid.*;
import IceGridGUI.*;

import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableColumn;

//
// A special field used to show/edit parameter values
//

public class ParameterValuesField extends JTable
{
    public ParameterValuesField(Editor editor)
    {
	_editor = editor;

	_columnNames = new java.util.Vector(2);
	_columnNames.add("Name");
	_columnNames.add("Value");

	_useDefaultCombo.setEditable(true);
	_notSetCombo.setEditable(true);
    }

    public void set(java.util.List names,
		    java.util.Map values,
		    java.util.Map defaultValues,
		    final Utils.Resolver resolver)
    {
	//
	// Transform map into vector of vectors
	//
	java.util.Vector vector = new java.util.Vector(names.size());
	java.util.Iterator p = names.iterator();

	_hasDefault = new boolean[names.size()];
	int i = 0;

	while(p.hasNext())
	{
	    java.util.Vector row = new java.util.Vector(2);
	    String name = (String)p.next(); 
	    row.add(name);

	    _hasDefault[i] = (defaultValues.get(name) != null);
	   
	    Object val = values.get(name);
	    if(val == null)
	    {
		row.add(_hasDefault[i] ? _useDefault : _notSet);
	    }
	    else
	    {
		row.add(Utils.substitute((String)val, resolver));
	    }
	    vector.add(row);
	    i++;
	}

	_model = new DefaultTableModel(vector, _columnNames)
	    {
		public boolean isCellEditable(int row, int column)
		{
		    if(resolver == null)
		    {
			return column > 0;
		    }
		    else
		    {
			return false;
		    }
		}
	    };
	
	_model.addTableModelListener(new TableModelListener()
	    {
		public void tableChanged(TableModelEvent e)
		{
		    _editor.updated();
		}
	    });
	setModel(_model);

	setCellSelectionEnabled(resolver == null);
	setOpaque(resolver == null);
	setPreferredScrollableViewportSize(getPreferredSize());

	DefaultTableCellRenderer cr = (DefaultTableCellRenderer)
	    getDefaultRenderer(String.class);
	cr.setOpaque(resolver == null);	
    }


    public java.util.Map getValues()
    {
	java.util.Map values = new java.util.HashMap();

	if(isEditing()) 
	{
	    getCellEditor().stopCellEditing();
	}
	java.util.Vector vector = _model.getDataVector();
	
	java.util.Iterator p = vector.iterator();
	while(p.hasNext())
	{
	    java.util.Vector row = (java.util.Vector)p.next();
	    
	    //
	    // Eliminate rows with null or empty names
	    //
	    String name = (String)row.elementAt(0);
	    assert name != null;
	       
	    Object val = row.elementAt(1);
		    
	    //
	    // Eliminate entries with default or not set value
	    //
	    if(val != _useDefault && val != _notSet)
	    {
		assert val != null;
		values.put(name, val);
	    }
	}
	return values;
    }

    public TableCellEditor getCellEditor(int row,
					 int column)
    {
	if(column == 1)
	{
	    return _hasDefault[row] ? _useDefaultEditor : _notSetEditor;
	}
	else
	{
	    return super.getCellEditor(row, column);
	}
    }


    private static final Object _useDefault = new Object()
	{
	    public String toString()
	    {
		return "Use default";
	    }
	};

    private static final Object _notSet = new Object()
	{
	    public String toString()
	    {
		return "Not set";
	    }
	};

    private JComboBox _useDefaultCombo = new JComboBox(
	new Object[]{_useDefault});
    
    private JComboBox _notSetCombo = new JComboBox(
	new Object[]{_notSet});

    private TableCellEditor _useDefaultEditor = new DefaultCellEditor(_useDefaultCombo);
    private TableCellEditor _notSetEditor = new DefaultCellEditor(_notSetCombo);

    private DefaultTableModel _model;
    private java.util.Vector _columnNames;
    private Editor _editor;

    private boolean[] _hasDefault;
}