JFontChooser.java

/**
 *
 * JFontChooser - from jfontchooser.sourceforge.net
 *
 */
package javaforce;

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

public class JFontChooser extends JDialog {

  public static int OK_OPTION = 0;
  public static int CANCEL_OPTION = 1;
  private JList fontList, sizeList;
  private JCheckBox cbBold, cbItalic;
  private JTextArea txtSample;
  private int OPTION;
  private String[] sizes = new String[]
    {
      "2", "4", "6", "8", "10", "12", "14", "16", "18", "20", "22", "24", "30"
      , "36", "48", "72", "84", "96", "108", "144", "192", "216", "288"
    };

  public int showDialog(Font font) {
    setFont(font);
    return showDialog();
  }

  public int showDialog() {
    setVisible(true);
    return OPTION;
  }

  @SuppressWarnings("unchecked")
  public JFontChooser(Frame parent) {
    super(parent, true);
    setTitle("JFontChooser");

    OPTION = JFontChooser.CANCEL_OPTION;

    // create all components

    JButton btnOK = new JButton("OK");
    btnOK.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        JFontChooser.this.OPTION = JFontChooser.OK_OPTION;
        JFontChooser.this.setVisible(false);
      }
    });

    JButton btnCancel = new JButton("Cancel");
    btnCancel.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        JFontChooser.this.OPTION = JFontChooser.CANCEL_OPTION;
        JFontChooser.this.setVisible(false);
      }
    });

    fontList = new JList(GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames()) {
      public Dimension getPreferredScrollableViewportSize() {
        return new Dimension(150, 144);
      }
    };

    fontList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

    sizeList = new JList(sizes) {
      public Dimension getPreferredScrollableViewportSize() {
        return new Dimension(25, 144);
      }
    };
    sizeList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

    cbBold = new JCheckBox("Bold");
    cbItalic = new JCheckBox("Italic");

    txtSample = new JTextArea() {
      public Dimension getPreferredScrollableViewportSize() {
        return new Dimension(385, 80);
      }
    };
    txtSample.setText("The quick brown fox jumped over the fence");

    // set the default font

    setFont(null);

    // add the listeners

    ListSelectionListener listListener = new ListSelectionListener() {
      public void valueChanged(ListSelectionEvent e) {
        txtSample.setFont(getCurrentFont());
      }
    };

    fontList.addListSelectionListener(listListener);
    sizeList.addListSelectionListener(listListener);

    ActionListener cbListener = new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        txtSample.setFont(getCurrentFont());
      }
    };

    cbBold.addActionListener(cbListener);
    cbItalic.addActionListener(cbListener);

    // build the container

    getContentPane().setLayout(new java.awt.BorderLayout());

    JPanel leftPanel = new JPanel();
    leftPanel.setLayout(new java.awt.BorderLayout());

    leftPanel.add(new JScrollPane(fontList), java.awt.BorderLayout.CENTER);
    leftPanel.add(new JScrollPane(sizeList), java.awt.BorderLayout.EAST);

    getContentPane().add(leftPanel, java.awt.BorderLayout.CENTER);

    JPanel rightPanel = new JPanel();
    rightPanel.setLayout(new java.awt.BorderLayout());

    JPanel rightPanelSub1 = new JPanel();
    rightPanelSub1.setLayout(new java.awt.FlowLayout());

    rightPanelSub1.add(cbBold);
    rightPanelSub1.add(cbItalic);

    rightPanel.add(rightPanelSub1, java.awt.BorderLayout.NORTH);

    JPanel rightPanelSub2 = new JPanel();
    rightPanelSub2.setLayout(new java.awt.GridLayout(2, 1));

    rightPanelSub2.add(btnOK);
    rightPanelSub2.add(btnCancel);

    rightPanel.add(rightPanelSub2, java.awt.BorderLayout.SOUTH);

    getContentPane().add(rightPanel, java.awt.BorderLayout.EAST);

    getContentPane().add(new JScrollPane(txtSample), java.awt.BorderLayout.SOUTH);

    setSize(200, 200);
    setResizable(false);

    pack();
    setPosition();
  }

  public void setFont(Font font) {
    if (font == null) {
      font = txtSample.getFont();
    }

    fontList.setSelectedValue(font.getName(), true);
    fontList.ensureIndexIsVisible(fontList.getSelectedIndex());
    sizeList.setSelectedValue("" + font.getSize(), true);
    sizeList.ensureIndexIsVisible(sizeList.getSelectedIndex());

    cbBold.setSelected(font.isBold());
    cbItalic.setSelected(font.isItalic());
  }

  public Font getFont() {
    if (OPTION == OK_OPTION) {
      return getCurrentFont();
    }
    return null;
  }

  private Font getCurrentFont() {
    String fontFamily = (String) fontList.getSelectedValue();
    int fontSize = Integer.parseInt((String) sizeList.getSelectedValue());

    int fontType = Font.PLAIN;

    if (cbBold.isSelected()) {
      fontType += Font.BOLD;
    }
    if (cbItalic.isSelected()) {
      fontType += Font.ITALIC;
    }

    return new Font(fontFamily, fontType, fontSize);
  }

  private void setPosition() {
    Dimension d = getSize();
    Rectangle s = GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds();
    setLocation(s.width / 2 - d.width / 2, s.height / 2 - d.height / 2);
  }
}