package org.trade.ui.widget;

import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.AbstractCellEditor;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JDialog;
import javax.swing.JTable;
import javax.swing.table.TableCellEditor;

/**
 */
public class ColorEditor extends AbstractCellEditor implements TableCellEditor, ActionListener {
	/**
	 * 
	 */
	private static final long serialVersionUID = -6974362652025540325L;
	private Color currentColor;
	private JButton button;
	private JColorChooser colorChooser;
	private JDialog dialog;
	protected static final String EDIT = "edit";

	public ColorEditor() {
		// Set up the editor (from the table's point of view),
		// which is a button.
		// This button brings up the color chooser dialog,
		// which is the editor from the user's point of view.
		button = new JButton();
		button.setActionCommand(EDIT);
		button.addActionListener(this);
		button.setBorderPainted(false);

		// Set up the dialog that the button brings up.
		colorChooser = new JColorChooser();
		dialog = JColorChooser.createDialog(button, "Pick a Color", true, // modal
				colorChooser, this, // OK button handler
				null); // no CANCEL button handler
	}

	/**
	 * Handles events from the editor button and from the dialog's OK button.
	 * 
	 * @param e
	 *            ActionEvent
	 * @see java.awt.event.ActionListener#actionPerformed(ActionEvent)
	 */
	public void actionPerformed(ActionEvent e) {
		if (EDIT.equals(e.getActionCommand())) {
			// The user has clicked the cell, so
			// bring up the dialog.
			button.setBackground(currentColor);
			colorChooser.setColor(currentColor);
			dialog.setVisible(true);

			// Make the renderer reappear.
			fireEditingStopped();

		} else { // User pressed dialog's "OK" button.
			currentColor = colorChooser.getColor();
		}
	}

	// Implement the one CellEditor method that AbstractCellEditor doesn't.
	/**
	 * Method getCellEditorValue.
	 * 
	 * @return Object
	 * @see javax.swing.CellEditor#getCellEditorValue()
	 */
	public Object getCellEditorValue() {
		return currentColor;
	}

	// Implement the one method defined by TableCellEditor.
	/**
	 * Method getTableCellEditorComponent.
	 * 
	 * @param table
	 *            JTable
	 * @param value
	 *            Object
	 * @param isSelected
	 *            boolean
	 * @param row
	 *            int
	 * @param column
	 *            int
	 * @return Component
	 * @see javax.swing.table.TableCellEditor#getTableCellEditorComponent(JTable,
	 *      Object, boolean, int, int)
	 */
	public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
		currentColor = (Color) value;
		return button;
	}
}