Package DisplayProject.plaf

Source Code of DisplayProject.plaf.Win32OptionPaneUI$Handler

package DisplayProject.plaf;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.ComponentOrientation;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.LayoutManager;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Locale;

import javax.swing.BoxLayout;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRootPane;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.ListSelectionModel;
import javax.swing.LookAndFeel;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.basic.BasicOptionPaneUI;

import sun.swing.DefaultLookup;


public class Win32OptionPaneUI extends BasicOptionPaneUI {

  public static final int MinimumWidth = 262;
  public static final int MinimumHeight = 90;

  /**
   * <code>JOptionPane</code> that the receiver is providing the
   * look and feel for.
   */
  private Handler handler;

  /**
   * Creates a new BasicOptionPaneUI instance.
   */
  public static ComponentUI createUI(JComponent x) {
    return new Win32OptionPaneUI();
  }

  /**
   * Installs the receiver as the L&F for the passed in
   * <code>JOptionPane</code>.
   */
  public void installUI(JComponent c) {
    optionPane = (JOptionPane)c;
    installDefaults();
    optionPane.setLayout(createLayoutManager());
    installComponents();
    installListeners();
    installKeyboardActions();
  }

  /**
   * Removes the receiver from the L&F controller of the passed in split
   * pane.
   */
  public void uninstallUI(JComponent c) {
    uninstallComponents();
    optionPane.setLayout(null);
    uninstallKeyboardActions();
    uninstallListeners();
    uninstallDefaults();
    optionPane = null;
  }

  protected void installDefaults() {
    LookAndFeel.installColorsAndFont(optionPane, "OptionPane.background",
        "OptionPane.foreground", "OptionPane.font");
    LookAndFeel.installBorder(optionPane, "OptionPane.border");
    minimumSize = UIManager.getDimension("OptionPane.minimumSize");
    LookAndFeel.installProperty(optionPane, "opaque", Boolean.TRUE);
  }

  protected void uninstallDefaults() {
    LookAndFeel.uninstallBorder(optionPane);
  }

  protected void installComponents() {
    optionPane.add(createMessageArea());

    Container separator = createSeparator();
    if (separator != null) {
      optionPane.add(separator);
    }
    optionPane.add(createButtonArea());
    optionPane.applyComponentOrientation(optionPane.getComponentOrientation());
  }

  protected void uninstallComponents() {
    hasCustomComponents = false;
    inputComponent = null;
    initialFocusComponent = null;
    optionPane.removeAll();
  }

  protected LayoutManager createLayoutManager() {
    return new BoxLayout(optionPane, BoxLayout.Y_AXIS);
  }

  protected void installListeners() {
    if ((propertyChangeListener = createPropertyChangeListener()) != null) {
      optionPane.addPropertyChangeListener(propertyChangeListener);
    }
  }

  protected void uninstallListeners() {
    if (propertyChangeListener != null) {
      optionPane.removePropertyChangeListener(propertyChangeListener);
      propertyChangeListener = null;
    }
    handler = null;
  }

  protected PropertyChangeListener createPropertyChangeListener() {
    return getHandler();
  }

  private Handler getHandler() {
    if (handler == null) {
      handler = new Handler();
    }
    return handler;
  }


  protected void uninstallKeyboardActions() {
    SwingUtilities.replaceUIInputMap(optionPane, JComponent.WHEN_IN_FOCUSED_WINDOW, null);
    SwingUtilities.replaceUIActionMap(optionPane, null);
  }

//  InputMap getInputMap(int condition) {
//    if (condition == JComponent.WHEN_IN_FOCUSED_WINDOW) {
//      Object[] bindings = (Object[])DefaultLookup.get(
//          optionPane, this, "OptionPane.windowBindings");
//      if (bindings != null) {
//        return LookAndFeel.makeComponentInputMap(optionPane, bindings);
//      }
//    }
//    return null;
//  }

  /**
   * Returns the minimum size the option pane should be. Primarily
   * provided for subclassers wishing to offer a different minimum size.
   */
  public Dimension getMinimumOptionPaneSize() {
    if (minimumSize == null) {
      return new Dimension(MinimumWidth, MinimumHeight);
    }
    return new Dimension(minimumSize.width,
        minimumSize.height);
  }

  /**
   * If <code>c</code> is the <code>JOptionPane</code> the receiver
   * is contained in, the preferred
   * size that is returned is the maximum of the preferred size of
   * the <code>LayoutManager</code> for the <code>JOptionPane</code>, and
   * <code>getMinimumOptionPaneSize</code>.
   */
  public Dimension getPreferredSize(JComponent c) {
    if ((JOptionPane)c == optionPane) {
      Dimension            ourMin = getMinimumOptionPaneSize();
      LayoutManager        lm = c.getLayout();

      if (lm != null) {
        Dimension         lmSize = lm.preferredLayoutSize(c);

        if (ourMin != null)
          return new Dimension
          (Math.max(lmSize.width, ourMin.width),
              Math.max(lmSize.height, ourMin.height));
        return lmSize;
      }
      return ourMin;
    }
    return null;
  }

  /**
   * Messaged from installComponents to create a Container containing the
   * body of the message. The icon is the created by calling
   * <code>addIcon</code>.
   */
  protected Container createMessageArea() {
    JPanel top = new JPanel();
    Border topBorder = (Border)DefaultLookup.get(optionPane, this,
        "OptionPane.messageAreaBorder");
    if (topBorder != null) {
      top.setBorder(topBorder);
    }
    top.setLayout(new BorderLayout());

    /* Fill the body. */
    Container          body = new JPanel(new GridBagLayout());
    Container          realBody = new JPanel(new BorderLayout());

    body.setName("OptionPane.body");
    realBody.setName("OptionPane.realBody");

    if (getIcon() != null) {
      JPanel sep = new JPanel();
      sep.setName("OptionPane.separator");
      sep.setPreferredSize(new Dimension(15, 1));
      realBody.add(sep, BorderLayout.BEFORE_LINE_BEGINS);
    }
    realBody.add(body, BorderLayout.CENTER);

    GridBagConstraints cons = new GridBagConstraints();
    cons.gridx = cons.gridy = 0;
    cons.gridwidth = GridBagConstraints.REMAINDER;
    cons.gridheight = 1;
    cons.anchor = DefaultLookup.getInt(optionPane, this,
        "OptionPane.messageAnchor", GridBagConstraints.CENTER);
    cons.insets = new Insets(0,0,3,0);

    addMessageComponents(body, cons, getMessage(),
        getMaxCharactersPerLineCount(), false);
    top.add(realBody, BorderLayout.CENTER);

    addIcon(top);
    return top;
  }


  /**
   * Returns the message to display from the JOptionPane the receiver is
   * providing the look and feel for.
   */
  protected Object getMessage() {
    inputComponent = null;
    if (optionPane != null) {
      if (optionPane.getWantsInput()) {
        /* Create a user component to capture the input. If the
         selectionValues are non null the component and there
         are < 20 values it'll be a combobox, if non null and
         >= 20, it'll be a list, otherwise it'll be a textfield. */
        Object             message = optionPane.getMessage();
        Object[]           sValues = optionPane.getSelectionValues();
        Object             inputValue = optionPane
        .getInitialSelectionValue();
        JComponent         toAdd;

        if (sValues != null) {
          if (sValues.length < 20) {
            JComboBox            cBox = new JComboBox();

            cBox.setName("OptionPane.comboBox");
            for(int counter = 0, maxCounter = sValues.length;
            counter < maxCounter; counter++) {
              cBox.addItem(sValues[counter]);
            }
            if (inputValue != null) {
              cBox.setSelectedItem(inputValue);
            }
            inputComponent = cBox;
            toAdd = cBox;

          } else {
            JList                list = new JList(sValues);
            JScrollPane          sp = new JScrollPane(list);

            sp.setName("OptionPane.scrollPane");
            list.setName("OptionPane.list");
            list.setVisibleRowCount(10);
            list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
            if(inputValue != null)
              list.setSelectedValue(inputValue, true);
            list.addMouseListener(getHandler());
            toAdd = sp;
            inputComponent = list;
          }

        } else {
          MultiplexingTextField   tf = new MultiplexingTextField(20);

          tf.setName("OptionPane.textField");
          tf.setKeyStrokes(new KeyStroke[] {
              KeyStroke.getKeyStroke("ENTER") } );
          if (inputValue != null) {
            String inputString = inputValue.toString();
            tf.setText(inputString);
            tf.setSelectionStart(0);
            tf.setSelectionEnd(inputString.length());
          }
          tf.addActionListener(getHandler());
          toAdd = inputComponent = tf;
        }

        Object[]           newMessage;

        if (message == null) {
          newMessage = new Object[1];
          newMessage[0] = toAdd;

        } else {
          newMessage = new Object[2];
          newMessage[0] = message;
          newMessage[1] = toAdd;
        }
        return newMessage;
      }
      return optionPane.getMessage();
    }
    return null;
  }

  /**
   * Creates and adds a JLabel representing the icon returned from
   * <code>getIcon</code> to <code>top</code>. This is messaged from
   * <code>createMessageArea</code>
   */
  protected void addIcon(Container top) {
    /* Create the icon. */
    Icon                  sideIcon = getIcon();

    if (sideIcon != null) {
      JLabel            iconLabel = new JLabel(sideIcon);

      iconLabel.setName("OptionPane.iconLabel");
      iconLabel.setVerticalAlignment(SwingConstants.TOP);
      top.add(iconLabel, BorderLayout.BEFORE_LINE_BEGINS);
    }
  }

  /**
   * Returns the icon from the JOptionPane the receiver is providing
   * the look and feel for, or the default icon as returned from
   * <code>getDefaultIcon</code>.
   */
  protected Icon getIcon() {
    Icon      mIcon = (optionPane == null ? null : optionPane.getIcon());

    if(mIcon == null && optionPane != null)
      mIcon = getIconForType(optionPane.getMessageType());
    return mIcon;
  }

  /**
   * Returns the icon to use for the passed in type.
   */
  protected Icon getIconForType(int messageType) {
    if(messageType < 0 || messageType > 3)
      return null;
    String propertyName = null;
    switch(messageType) {
    case 0:
      propertyName = "OptionPane.errorIcon";
      break;
    case 1:
      propertyName = "OptionPane.informationIcon";
      break;
    case 2:
      propertyName = "OptionPane.warningIcon";
      break;
    case 3:
      propertyName = "OptionPane.questionIcon";
      break;
    }
    if (propertyName != null) {
      return (Icon)DefaultLookup.get(optionPane, this, propertyName);
    }
    return null;
  }

  /**
   * Returns the maximum number of characters to place on a line.
   */
  protected int getMaxCharactersPerLineCount() {
    return optionPane.getMaxCharactersPerLineCount();
  }

  /**
   * Recursively creates new JLabel instances to represent <code>d</code>.
   * Each JLabel instance is added to <code>c</code>.
   */
  protected void burstStringInto(Container c, String d, int maxll) {
    // Primitive line wrapping
    int len = d.length();
    if (len <= 0)
      return;
    if (len > maxll) {
      int p = d.lastIndexOf(' ', maxll);
      if (p <= 0)
        p = d.indexOf(' ', maxll);
      if (p > 0 && p < len) {
        burstStringInto(c, d.substring(0, p), maxll);
        burstStringInto(c, d.substring(p + 1), maxll);
        return;
      }
    }
    JLabel label = new JLabel(d, JLabel.LEFT);
    label.setName("OptionPane.label");
    configureMessageLabel(label);
    c.add(label);
  }

  protected Container createSeparator() {
    return null;
  }

  /**
   * Creates and returns a Container containing the buttons. The buttons
   * are created by calling <code>getButtons</code>.
   */
  protected Container createButtonArea() {
    JPanel bottom = new JPanel();
    Border border = (Border)DefaultLookup.get(optionPane, this,
        "OptionPane.buttonAreaBorder");
    bottom.setName("OptionPane.buttonArea");
    if (border != null) {
      bottom.setBorder(border);
    }
    bottom.setLayout(new ButtonAreaLayout(
        DefaultLookup.getBoolean(optionPane, this,
            "OptionPane.sameSizeButtons", true),
            DefaultLookup.getInt(optionPane, this, "OptionPane.buttonPadding",
                6),
                DefaultLookup.getInt(optionPane, this,
                    "OptionPane.buttonOrientation", SwingConstants.CENTER),
                    DefaultLookup.getBoolean(optionPane, this, "OptionPane.isYesLast",
                        false)));
    addButtonComponents(bottom, getButtons(), getInitialValueIndex());
    return bottom;
  }

  /**
   * Creates the appropriate object to represent each of the objects in
   * <code>buttons</code> and adds it to <code>container</code>. This
   * differs from addMessageComponents in that it will recurse on
   * <code>buttons</code> and that if button is not a Component
   * it will create an instance of JButton.
   */
  protected void addButtonComponents(Container container, Object[] buttons,
      int initialIndex) {
    if (buttons != null && buttons.length > 0) {
      boolean            sizeButtonsToSame = getSizeButtonsToSameWidth();
      boolean            createdAll = true;
      int                numButtons = buttons.length;
      JButton[]          createdButtons = null;
      int                maxWidth = 0;

      if (sizeButtonsToSame) {
        createdButtons = new JButton[numButtons];
      }

      for(int counter = 0; counter < numButtons; counter++) {
        Object       button = buttons[counter];
        Component    newComponent;

        if (button instanceof Component) {
          createdAll = false;
          newComponent = (Component)button;
          container.add(newComponent);
          hasCustomComponents = true;

        } else {
          JButton      aButton;

          if (button instanceof ButtonFactory) {
            aButton = ((ButtonFactory)button).createButton();
          }
          else if (button instanceof Icon)
            aButton = new JButton((Icon)button);
          else
            aButton = new JButton(button.toString());

          aButton.setName("OptionPane.button");
          aButton.setMultiClickThreshhold(DefaultLookup.getInt(
              optionPane, this, "OptionPane.buttonClickThreshhold",
              0));
          configureButton(aButton);

          container.add(aButton);

          ActionListener buttonListener = createButtonActionListener(counter);
          if (buttonListener != null) {
            aButton.addActionListener(buttonListener);
          }
          newComponent = aButton;
        }
        if (sizeButtonsToSame && createdAll &&
            (newComponent instanceof JButton)) {
          createdButtons[counter] = (JButton)newComponent;
          maxWidth = Math.max(maxWidth,
              newComponent.getMinimumSize().width);
        }
        if (counter == initialIndex) {
          initialFocusComponent = newComponent;
          if (initialFocusComponent instanceof JButton) {
            JButton defaultB = (JButton)initialFocusComponent;
            defaultB.addAncestorListener(new AncestorListener() {
              public void ancestorAdded(AncestorEvent e) {
                JButton defaultButton = (JButton)e.getComponent();
                JRootPane root = SwingUtilities.getRootPane(defaultButton);
                if (root != null) {
                  root.setDefaultButton(defaultButton);
                }
              }
              public void ancestorRemoved(AncestorEvent event) {}
              public void ancestorMoved(AncestorEvent event) {}
            });
          }
        }
      }
      ((ButtonAreaLayout)container.getLayout()).
      setSyncAllWidths((sizeButtonsToSame && createdAll));
      /* Set the padding, windows seems to use 8 if <= 2 components,
           otherwise 4 is used. It may actually just be the size of the
           buttons is always the same, not sure. */
      if (DefaultLookup.getBoolean(optionPane, this,
          "OptionPane.setButtonMargin", true) && sizeButtonsToSame &&
          createdAll) {
        JButton               aButton;
        int                   padSize;

        padSize = (numButtons <= 2? 8 : 4);

        for(int counter = 0; counter < numButtons; counter++) {
          aButton = createdButtons[counter];
          aButton.setMargin(new Insets(2, padSize, 2, padSize));
        }
      }
    }
  }

  protected ActionListener createButtonActionListener(int buttonIndex) {
    return new ButtonActionListener(buttonIndex);
  }

  /**
   * Returns the buttons to display from the JOptionPane the receiver is
   * providing the look and feel for. If the JOptionPane has options
   * set, they will be provided, otherwise if the optionType is
   * YES_NO_OPTION, yesNoOptions is returned, if the type is
   * YES_NO_CANCEL_OPTION yesNoCancelOptions is returned, otherwise
   * defaultButtons are returned.
   */
  protected Object[] getButtons() {
    if (optionPane != null) {
      Object[] suppliedOptions = optionPane.getOptions();

      if (suppliedOptions == null) {
        Object[] defaultOptions;
        int type = optionPane.getOptionType();
        Locale l = optionPane.getLocale();
        if (type == JOptionPane.YES_NO_OPTION) {
          defaultOptions = new ButtonFactory[2];
          defaultOptions[0] = new ButtonFactory(
              UIManager.getString("OptionPane.yesButtonText", l),
              getMnemonic("OptionPane.yesButtonMnemonic", l),
              (Icon)DefaultLookup.get(optionPane, this,
              "OptionPane.yesIcon"));
          defaultOptions[1] = new ButtonFactory(
              UIManager.getString("OptionPane.noButtonText", l),
              getMnemonic("OptionPane.noButtonMnemonic", l),
              (Icon)DefaultLookup.get(optionPane, this,
              "OptionPane.noIcon"));
        } else if (type == JOptionPane.YES_NO_CANCEL_OPTION) {
          defaultOptions = new ButtonFactory[3];
          defaultOptions[0] = new ButtonFactory(
              UIManager.getString("OptionPane.yesButtonText", l),
              getMnemonic("OptionPane.yesButtonMnemonic", l),
              (Icon)DefaultLookup.get(optionPane, this,
              "OptionPane.yesIcon"));
          defaultOptions[1] = new ButtonFactory(
              UIManager.getString("OptionPane.noButtonText",l),
              getMnemonic("OptionPane.noButtonMnemonic", l),
              (Icon)DefaultLookup.get(optionPane, this,
              "OptionPane.noIcon"));
          defaultOptions[2] = new ButtonFactory(
              UIManager.getString("OptionPane.cancelButtonText",l),
              getMnemonic("OptionPane.cancelButtonMnemonic", l),
              (Icon)DefaultLookup.get(optionPane, this,
              "OptionPane.cancelIcon"));
        } else if (type == JOptionPane.OK_CANCEL_OPTION) {
          defaultOptions = new ButtonFactory[2];
          defaultOptions[0] = new ButtonFactory(
              UIManager.getString("OptionPane.okButtonText",l),
              getMnemonic("OptionPane.okButtonMnemonic", l),
              (Icon)DefaultLookup.get(optionPane, this,
              "OptionPane.okIcon"));
          defaultOptions[1] = new ButtonFactory(
              UIManager.getString("OptionPane.cancelButtonText",l),
              getMnemonic("OptionPane.cancelButtonMnemonic", l),
              (Icon)DefaultLookup.get(optionPane, this,
              "OptionPane.cancelIcon"));
        } else {
          defaultOptions = new ButtonFactory[1];
          defaultOptions[0] = new ButtonFactory(
              UIManager.getString("OptionPane.okButtonText",l),
              getMnemonic("OptionPane.okButtonMnemonic", l),
              (Icon)DefaultLookup.get(optionPane, this,
              "OptionPane.okIcon"));
        }
        return defaultOptions;

      }
      return suppliedOptions;
    }
    return null;
  }

  private int getMnemonic(String key, Locale l) {
    String value = (String)UIManager.get(key, l);

    if (value == null) {
      return 0;
    }
    try {
      return Integer.parseInt(value);
    }
    catch (NumberFormatException nfe) { }
    return 0;
  }

  /**
   * Returns true, basic L&F wants all the buttons to have the same
   * width.
   */
  protected boolean getSizeButtonsToSameWidth() {
    return true;
  }

  /**
   * Returns the initial index into the buttons to select. The index
   * is calculated from the initial value from the JOptionPane and
   * options of the JOptionPane or 0.
   */
  protected int getInitialValueIndex() {
    if (optionPane != null) {
      Object             iv = optionPane.getInitialValue();
      Object[]           options = optionPane.getOptions();

      if(options == null) {
        return 0;
      }
      else if(iv != null) {
        for(int counter = options.length - 1; counter >= 0; counter--){
          if(options[counter].equals(iv))
            return counter;
        }
      }
    }
    return -1;
  }

  /**
   * Sets the input value in the option pane the receiver is providing
   * the look and feel for based on the value in the inputComponent.
   */
  protected void resetInputValue() {
    if(inputComponent != null && (inputComponent instanceof JTextField)) {
      optionPane.setInputValue(((JTextField)inputComponent).getText());

    } else if(inputComponent != null &&
        (inputComponent instanceof JComboBox)) {
      optionPane.setInputValue(((JComboBox)inputComponent)
          .getSelectedItem());
    } else if(inputComponent != null) {
      optionPane.setInputValue(((JList)inputComponent)
          .getSelectedValue());
    }
  }



  /**
   * Returns true if in the last call to validateComponent the message
   * or buttons contained a subclass of Component.
   */
  public boolean containsCustomComponents(JOptionPane op) {
    return hasCustomComponents;
  }


  /**
   * <code>ButtonAreaLayout</code> behaves in a similar manner to
   * <code>FlowLayout</code>. It lays out all components from left to
   * right. If <code>syncAllWidths</code> is true, the widths of each
   * component will be set to the largest preferred size width.
   *
   * This inner class is marked &quot;public&quot; due to a compiler bug.
   * This class should be treated as a &quot;protected&quot; inner class.
   * Instantiate it only within subclasses of BasicOptionPaneUI.
   */ 
  public static class ButtonAreaLayout implements LayoutManager {
    protected boolean           syncAllWidths;
    protected int               padding;
    /** If true, children are lumped together in parent. */
    protected boolean           centersChildren;
    private int orientation;
    private boolean reverseButtons;
    /**
     * Indicates whether or not centersChildren should be used vs
     * the orientation. This is done for backward compatability
     * for subclassers.
     */
    private boolean useOrientation;

    public ButtonAreaLayout(boolean syncAllWidths, int padding) {
      this.syncAllWidths = syncAllWidths;
      this.padding = padding;
      centersChildren = true;
      useOrientation = false;
    }

    ButtonAreaLayout(boolean syncAllSizes, int padding, int orientation,
        boolean reverseButtons) {
      this(syncAllSizes, padding);
      useOrientation = true;
      this.orientation = orientation;
      this.reverseButtons = reverseButtons;
    }

    public void setSyncAllWidths(boolean newValue) {
      syncAllWidths = newValue;
    }

    public boolean getSyncAllWidths() {
      return syncAllWidths;
    }

    public void setPadding(int newPadding) {
      this.padding = newPadding;
    }

    public int getPadding() {
      return padding;
    }

    public void setCentersChildren(boolean newValue) {
      centersChildren = newValue;
      useOrientation = false;
    }

    public boolean getCentersChildren() {
      return centersChildren;
    }

    private int getOrientation(Container container) {
      if (!useOrientation) {
        return SwingConstants.CENTER;
      }
      if (container.getComponentOrientation().isLeftToRight()) {
        return orientation;
      }
      switch (orientation) {
      case SwingConstants.LEFT:
        return SwingConstants.RIGHT;
      case SwingConstants.RIGHT:
        return SwingConstants.LEFT;
      case SwingConstants.CENTER:
        return SwingConstants.CENTER;
      }
      return SwingConstants.LEFT;
    }

    public void addLayoutComponent(String string, Component comp) {
    }

    public void layoutContainer(Container container) {
      Component[]      children = container.getComponents();

      if(children != null && children.length > 0) {
        int               numChildren = children.length;
        Insets            insets = container.getInsets();
        int maxWidth = 0;
        int maxHeight = 0;
        int totalButtonWidth = 0;
        int x = 0;
        int xOffset = 0;
        boolean ltr = container.getComponentOrientation().
        isLeftToRight();
        boolean reverse = (ltr) ? reverseButtons : !reverseButtons;

        for(int counter = 0; counter < numChildren; counter++) {
          Dimension pref = children[counter].getPreferredSize();
          maxWidth = Math.max(maxWidth, pref.width);
          maxHeight = Math.max(maxHeight, pref.height);
          totalButtonWidth += pref.width;
        }
        if (getSyncAllWidths()) {
          totalButtonWidth = maxWidth * numChildren;
        }
        totalButtonWidth += (numChildren - 1) * padding;

        switch (getOrientation(container)) {
        case SwingConstants.LEFT:
          x = insets.left;
          break;
        case SwingConstants.RIGHT:
          x = container.getWidth() - insets.right - totalButtonWidth;
          break;
        case SwingConstants.CENTER:
          if (getCentersChildren() || numChildren < 2) {
            x = (container.getWidth() - totalButtonWidth) / 2;
          }
          else {
            x = insets.left;
            if (getSyncAllWidths()) {
              xOffset = (container.getWidth() - insets.left -
                  insets.right - totalButtonWidth) /
                  (numChildren - 1) + maxWidth;
            }
            else {
              xOffset = (container.getWidth() - insets.left -
                  insets.right - totalButtonWidth) /
                  (numChildren - 1);
            }
          }
          break;
        }

        for (int counter = 0; counter < numChildren; counter++) {
          int index = (reverse) ? numChildren - counter - 1 :
            counter;
          Dimension pref = children[index].getPreferredSize();

          if (getSyncAllWidths()) {
            children[index].setBounds(x, insets.top,
                maxWidth, maxHeight);
          }
          else {
            children[index].setBounds(x, insets.top, pref.width,
                pref.height);
          }
          if (xOffset != 0) {
            x += xOffset;
          }
          else {
            x += children[index].getWidth() + padding;
          }
        }
      }
    }

    public Dimension minimumLayoutSize(Container c) {
      if(c != null) {
        Component[]       children = c.getComponents();

        if(children != null && children.length > 0) {
          Dimension     aSize;
          int           numChildren = children.length;
          int           height = 0;
          Insets        cInsets = c.getInsets();
          int           extraHeight = cInsets.top + cInsets.bottom;
          int           extraWidth = cInsets.left + cInsets.right;

          if (syncAllWidths) {
            int              maxWidth = 0;

            for(int counter = 0; counter < numChildren; counter++){
              aSize = children[counter].getPreferredSize();
              height = Math.max(height, aSize.height);
              maxWidth = Math.max(maxWidth, aSize.width);
            }
            return new Dimension(extraWidth + (maxWidth * numChildren) +
                (numChildren - 1) * padding,
                extraHeight + height);
          }
          else {
            int        totalWidth = 0;

            for(int counter = 0; counter < numChildren; counter++){
              aSize = children[counter].getPreferredSize();
              height = Math.max(height, aSize.height);
              totalWidth += aSize.width;
            }
            totalWidth += ((numChildren - 1) * padding);
            return new Dimension(extraWidth + totalWidth, extraHeight + height);
          }
        }
      }
      return new Dimension(0, 0);
    }

    public Dimension preferredLayoutSize(Container c) {
      return minimumLayoutSize(c);
    }

    public void removeLayoutComponent(Component c) { }
  }


  /**
   * This inner class is marked &quot;public&quot; due to a compiler bug.
   * This class should be treated as a &quot;protected&quot; inner class.
   * Instantiate it only within subclasses of BasicOptionPaneUI.
   */ 
  public class PropertyChangeHandler implements PropertyChangeListener {
    /**
     * If the source of the PropertyChangeEvent <code>e</code> equals the
     * optionPane and is one of the ICON_PROPERTY, MESSAGE_PROPERTY,
     * OPTIONS_PROPERTY or INITIAL_VALUE_PROPERTY,
     * validateComponent is invoked.
     */
    public void propertyChange(PropertyChangeEvent e) {
      getHandler().propertyChange(e);
    }
  }

  /**
   * Configures any necessary colors/fonts for the specified label
   * used representing the message.
   */
  private void configureMessageLabel(JLabel label) {
    Color color = (Color)DefaultLookup.get(optionPane, this,
    "OptionPane.messageForeground");
    if (color != null) {
      label.setForeground(color);
    }
    Font messageFont = (Font)DefaultLookup.get(optionPane, this,
        "OptionPane.messageFont");
    if (messageFont != null) {
      label.setFont(messageFont);
    }
  }

  /**
   * Configures any necessary colors/fonts for the specified button
   * used representing the button portion of the optionpane.
   */
  private void configureButton(JButton button) {
    Font buttonFont = (Font)DefaultLookup.get(optionPane, this,
    "OptionPane.buttonFont");
    if (buttonFont != null) {
      button.setFont(buttonFont);
    }
  }

  /**
   * This inner class is marked &quot;public&quot; due to a compiler bug.
   * This class should be treated as a &quot;protected&quot; inner class.
   * Instantiate it only within subclasses of BasicOptionPaneUI.
   */ 
  public class ButtonActionListener implements ActionListener {
    protected int buttonIndex;

    public ButtonActionListener(int buttonIndex) {
      this.buttonIndex = buttonIndex;
    }

    public void actionPerformed(ActionEvent e) {
      if (optionPane != null) {
        int optionType = optionPane.getOptionType();
        Object[] options = optionPane.getOptions();

        /* If the option pane takes input, then store the input value
         * if custom options were specified, if the option type is
         * DEFAULT_OPTION, OR if option type is set to a predefined
         * one and the user chose the affirmative answer.
         */
        if (inputComponent != null) {
          if (options != null ||
              optionType == JOptionPane.DEFAULT_OPTION ||
              ((optionType == JOptionPane.YES_NO_OPTION ||
                  optionType == JOptionPane.YES_NO_CANCEL_OPTION ||
                  optionType == JOptionPane.OK_CANCEL_OPTION) &&
                  buttonIndex == 0)) {
            resetInputValue();
          }
        }
        if (options == null) {
          if (optionType == JOptionPane.OK_CANCEL_OPTION &&
              buttonIndex == 1) {
            optionPane.setValue(new Integer(2));

          } else {
            optionPane.setValue(new Integer(buttonIndex));
          }
        } else {
          optionPane.setValue(options[buttonIndex]);
        }
      }
    }
  }


  private class Handler implements ActionListener, MouseListener,
  PropertyChangeListener {
    //
    // ActionListener
    //
    public void actionPerformed(ActionEvent e) {
      optionPane.setInputValue(((JTextField)e.getSource()).getText());
    }


    //
    // MouseListener
    //
    public void mouseClicked(MouseEvent e) {
    }

    public void mouseReleased(MouseEvent e) {
    }

    public void mouseEntered(MouseEvent e) {
    }

    public void mouseExited(MouseEvent e) {
    }

    public void mousePressed(MouseEvent e) {
      if (e.getClickCount() == 2) {
        JList     list = (JList)e.getSource();
        int       index = list.locationToIndex(e.getPoint());

        optionPane.setInputValue(list.getModel().getElementAt(index));
      }
    }

    //
    // PropertyChangeListener
    //
    public void propertyChange(PropertyChangeEvent e) {
      if(e.getSource() == optionPane) {
        // Option Pane Auditory Cue Activation
        // only respond to "ancestor" changes
        // the idea being that a JOptionPane gets a JDialog when it is
        // set to appear and loses it's JDialog when it is dismissed.
        if ("ancestor" == e.getPropertyName()) {
          JOptionPane op = (JOptionPane)e.getSource();
          boolean isComingUp;

          // if the old value is null, then the JOptionPane is being
          // created since it didn't previously have an ancestor.
          if (e.getOldValue() == null) {
            isComingUp = true;
          } else {
            isComingUp = false;
          }

          // figure out what to do based on the message type
          switch (op.getMessageType()) {
          case JOptionPane.PLAIN_MESSAGE:
            if (isComingUp) {
              Win32LookAndFeel.playSound(optionPane,
                  "OptionPane.informationSound");
            }
            break;
          case JOptionPane.QUESTION_MESSAGE:
            if (isComingUp) {
              Win32LookAndFeel.playSound(optionPane,
                  "OptionPane.questionSound");
            }
            break;
          case JOptionPane.INFORMATION_MESSAGE:
            if (isComingUp) {
              Win32LookAndFeel.playSound(optionPane,
                  "OptionPane.informationSound");
            }
            break;
          case JOptionPane.WARNING_MESSAGE:
            if (isComingUp) {
              Win32LookAndFeel.playSound(optionPane,
                  "OptionPane.warningSound");
            }
            break;
          case JOptionPane.ERROR_MESSAGE:
            if (isComingUp) {
              Win32LookAndFeel.playSound(optionPane,
                  "OptionPane.errorSound");
            }
            break;
          default:
            System.err.println("Undefined JOptionPane type: " +
                op.getMessageType());
          break;
          }
        }
        // Visual activity
        String         changeName = e.getPropertyName();

        if(changeName == JOptionPane.OPTIONS_PROPERTY ||
            changeName == JOptionPane.INITIAL_VALUE_PROPERTY ||
            changeName == JOptionPane.ICON_PROPERTY ||
            changeName == JOptionPane.MESSAGE_TYPE_PROPERTY ||
            changeName == JOptionPane.OPTION_TYPE_PROPERTY ||
            changeName == JOptionPane.MESSAGE_PROPERTY ||
            changeName == JOptionPane.SELECTION_VALUES_PROPERTY ||
            changeName == JOptionPane.INITIAL_SELECTION_VALUE_PROPERTY ||
            changeName == JOptionPane.WANTS_INPUT_PROPERTY) {
          uninstallComponents();
          installComponents();
          optionPane.validate();
        }
        else if (changeName == "componentOrientation") {
          ComponentOrientation o = (ComponentOrientation)e.getNewValue();
          JOptionPane op = (JOptionPane)e.getSource();
          if (o != (ComponentOrientation)e.getOldValue()) {
            op.applyComponentOrientation(o);
          }
        }
      }
    }
  }


  //
  // Classes used when optionPane.getWantsInput returns true.
  //

  /**
   * A JTextField that allows you to specify an array of KeyStrokes that
   * that will have their bindings processed regardless of whether or
   * not they are registered on the JTextField. This is used as we really
   * want the ActionListener to be notified so that we can push the
   * change to the JOptionPane, but we also want additional bindings
   * (those of the JRootPane) to be processed as well.
   */
  @SuppressWarnings("serial")
  private static class MultiplexingTextField extends JTextField {
    private KeyStroke[] strokes;

    MultiplexingTextField(int cols) {
      super(cols);
    }

    /**
     * Sets the KeyStrokes that will be additional processed for
     * ancestor bindings.
     */
    void setKeyStrokes(KeyStroke[] strokes) {
      this.strokes = strokes;
    }

    protected boolean processKeyBinding(KeyStroke ks, KeyEvent e,
        int condition, boolean pressed) {
      boolean processed = super.processKeyBinding(ks, e, condition,
          pressed);

      if (processed && condition != JComponent.WHEN_IN_FOCUSED_WINDOW) {
        for (int counter = strokes.length - 1; counter >= 0;
        counter--) {
          if (strokes[counter].equals(ks)) {
            // Returning false will allow further processing
            // of the bindings, eg our parent Containers will get a
            // crack at them.
            return false;
          }
        }
      }
      return processed;
    }
  }





  /**
   * This class is used to create the default buttons. This indirection is
   * used so that addButtonComponents can tell which Buttons were created
   * by us vs subclassers or from the JOptionPane itself.
   */
  private static class ButtonFactory {
    private String text;
    private int mnemonic;
    private Icon icon;

    ButtonFactory(String text, int mnemonic, Icon icon) {
      this.text = text;
      this.mnemonic = mnemonic;
      this.icon = icon;
    }

    JButton createButton() {
      JButton button = new JButton(text);
      if (icon != null) {
        button.setIcon(icon);
      }
      if (mnemonic != 0) {
        button.setMnemonic(mnemonic);
      }
      return button;
    }
  }
}
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