package com.revolsys.swing.component;

import java.awt.Dimension;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.Arrays;
import java.util.List;

import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.ButtonModel;
import javax.swing.JToggleButton;
import javax.swing.SpringLayout;

import com.revolsys.swing.layout.SpringLayoutUtil;

public class TogglePanel extends ValueField implements ItemListener {
  /**
   *
   */
  private static final long serialVersionUID = -1157521301167776836L;

  private final ButtonGroup group;

  public TogglePanel(final String value, final Action... actions) {
    this(value, null, actions);
  }

  public TogglePanel(final String value, final Dimension dimension, final Action... actions) {
    this(null, value, dimension, actions);
  }

  public TogglePanel(final String fieldName, final String value, final Dimension dimension,
    final Action... actions) {
    this(fieldName, value, dimension, Arrays.asList(actions));
  }

  public TogglePanel(final String fieldName, final String value, final Dimension dimension,
    final List<Action> actions) {
    super(new SpringLayout(), fieldName, value);
    setOpaque(false);
    setBorder(BorderFactory.createEmptyBorder(0, 3, 0, 0));
    this.group = new ButtonGroup();
    for (final Action action : actions) {
      final JToggleButton button = new JToggleButton(action);
      if (dimension != null) {
        button.setPreferredSize(dimension);
      }
      this.group.add(button);
      add(button);
      final Object actionCommand = action.getValue(Action.ACTION_COMMAND_KEY);

      if (value != null && actionCommand != null
        && value.equalsIgnoreCase(actionCommand.toString())) {
        button.setSelected(true);
      }
      button.addItemListener(this);
    }
    SpringLayoutUtil.makeColumns(this, getComponentCount(), 0, 0, 5, 0);
  }

  public String getActionCommand() {
    if (this.group != null) {
      final ButtonModel selection = this.group.getSelection();
      if (selection != null) {
        return selection.getActionCommand();
      }
    }
    return null;
  }

  @Override
  public void itemStateChanged(final ItemEvent e) {
    if (e.getStateChange() == ItemEvent.SELECTED) {
      firePropertyChange("actionCommand", null, getActionCommand());
      setFieldValue(getActionCommand());
    }

  }

  @Override
  public void save() {
    super.save();
    setFieldValue(getActionCommand());
  }
}