/*
 * @(#)CSamplerWrapperUI.java   0.0.0 99/05/27
 *
 * Copyright (c) 1999 by Willie Wheeler.  All rights reserved.
 */
package stats.plaf.concrete;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.plaf.*;
import stats.*;
import stats.plaf.*;

/**
 * @version     0.0.0 05/27/99
 * @author      Willie Wheeler
 */
public class CSamplerWrapperUI extends SamplerWrapperUI
    implements ActionListener, ItemListener {

  protected static final String         DRAW = "draw";

  protected SamplerWrapper              wrapper;
  protected JCheckBox                   replaceBox;

  /**
   * Adds the given component to the given container, assuming that the
   * container has a <tt>GridBagLayout</tt>.  This method comes from
   * O'Reilly's <i>Java AWT Reference</i>, pp. 275-276.
   *
   * @param     container       container with a <tt>GridBagLayout</tt>
   * @param     component       component to add to the container
   * @param     gridx           grid x coord
   * @param     gridy           grid y coord
   * @param     gridwidth       grid width
   * @param     gridheight      grid height
   * @param     fill            fill value
   * @param     anchor          anchor value
   */
  protected static void addComponent(Container container, Component component,
      int gridx, int gridy, int gridwidth, int gridheight, int fill,
      int anchor) {
    GridBagLayout lm = (GridBagLayout)container.getLayout();
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.gridx = gridx;
    gbc.gridy = gridy;
    gbc.gridwidth = gridwidth;
    gbc.gridheight = gridheight;
    gbc.fill = fill;
    gbc.anchor = anchor;
    lm.setConstraints(component, gbc);
    container.add(component);
  }

  public static ComponentUI createUI(JComponent c) {
    return new CSamplerWrapperUI();
  }

  public void installUI(JComponent c) {
    wrapper = (SamplerWrapper)c;
    installDefaults();
    installComponents();
    installListeners();
  }

  public void installDefaults() { wrapper.setLayout(new BorderLayout()); }

  public void installComponents() {

    // Add sampler.
    Sampler sampler = wrapper.getSampler();
    wrapper.add(sampler, BorderLayout.CENTER);

    JPanel panel = new JPanel();
    panel.setLayout(new GridLayout(0, 1));
    wrapper.add(panel, BorderLayout.WEST);
    {
      JLabel psLabel = new JLabel("N=" + wrapper.getPopulationSize(),
          JLabel.CENTER);
      panel.add(psLabel);

      JPanel ssPanel = new JPanel();
      ssPanel.setLayout(new GridBagLayout());
      panel.add(ssPanel);
      {
        JLabel ssLabel = new JLabel("n=");
        addComponent(ssPanel, ssLabel, 0, 0, 1, 1,
            GridBagConstraints.NONE, GridBagConstraints.CENTER);
        ssPanel.add(ssLabel);

        JComboBox ssBox = new JComboBox(
            new String[] { "25", "50", "100", "250" });
        ssBox.setEditable(true);
        Component editor = ssBox.getEditor().getEditorComponent();
        if (editor instanceof JTextField) {
          ((JTextField)editor).setColumns(5);
        }
        addComponent(ssPanel, ssBox, 0, 1, 1, 1,
            GridBagConstraints.NONE, GridBagConstraints.CENTER);
      }

      JPanel nsPanel = new JPanel();
      nsPanel.setLayout(new GridBagLayout());
      panel.add(nsPanel);
      {
        JLabel nsLabel = new JLabel("# samples=");
        addComponent(nsPanel, nsLabel, 0, 0, 1, 1,
            GridBagConstraints.NONE, GridBagConstraints.CENTER);

        JComboBox nsBox = new JComboBox(
            new String[] { "1", "5", "10", "50", "100", "500", "1000" });
        nsBox.setEditable(true);
        Component editor = nsBox.getEditor().getEditorComponent();
        if (editor instanceof JTextField) {
          ((JTextField)editor).setColumns(5);
        }
        addComponent(nsPanel, nsBox, 0, 1, 1, 1,
            GridBagConstraints.NONE, GridBagConstraints.CENTER);
      }

      replaceBox = new JCheckBox("Replace", sampler.getReplace());
      replaceBox.setHorizontalAlignment(JCheckBox.CENTER);
      panel.add(replaceBox);

      JPanel drawPanel = new JPanel();
      drawPanel.setLayout(new GridBagLayout());
      panel.add(drawPanel);
      {
        JButton drawButton = new JButton("Sample");
        drawButton.setActionCommand(DRAW);
        drawButton.addActionListener(this);
        addComponent(drawPanel, drawButton, 0, 0, 1, 1,
            GridBagConstraints.NONE, GridBagConstraints.CENTER);
      }
    }
  }

  public void installListeners() {
    replaceBox.addItemListener(this);
  }

  public void uninstallUI(JComponent c) { }
  public void uninstallDefaults() { }
  public void uninstallComponents() { }
  public void uninstallListeners() { }

  public void actionPerformed(ActionEvent e) {
    String cmd = e.getActionCommand();
    if (cmd == DRAW) { wrapper.drawSample(); }
  }

  public void itemStateChanged(ItemEvent e) {
    wrapper.setReplace(e.getStateChange() == ItemEvent.SELECTED);
  }
}