java字体对话框
java中没有自带的字体对话框，需要自己来编写。
package com.hf.app.lucky.frame;
/*
* JFontChooser.java
*
* Created on 2011年1月7日
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
/**
*
* @author
*/
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import javax.swing.event.*;
public class JFontChooser extends JPanel implements ActionListener,
ListSelectionListener {
private JDialog jd;// 用于显示模态的窗体
private JComboBox fonts;// 用于选择字体的下拉框
private JList face, size;// 用于选择字形和字号的列表
private JTextField sizeJT;// 用于显示选中的字形和字号
private JButton ok, cancel;// 表示选中和取消的按钮
private Font current;// 表示当然选中的字体
private GraphicsEnvironment ge;// 表示当前的图形环境
private JLabel demo;// 表示预览的label
private String fontName = "宋体 ";
private int fontStyle = Font.PLAIN, fontSize = 20;
private Frame owner;// 表示父类的组件窗体
private Hashtable
/** Creates a new instance of JFontChooser */
private JFontChooser() {
initOther();
}
private void initOther() {
current = new Font(fontName, fontStyle, fontSize);
ht = new Hashtable
sizeJT = new JTextField("20 ");
sizeJT.setEditable(false);
sizeJT.setBounds(260, 40, 50, 20);
ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
String[] family = ge.getAvailableFontFamilyNames();
fonts = new JComboBox(family);
fonts.setEditable(false);
fonts.setMaximumRowCount(5);
demo = new JLabel("鸿飞科技 ABCD abcd ", JLabel.CENTER);
demo.setFont(current);
String[] faceString = { "正常 ", "粗体 ", "斜体 ", "粗体+斜体 " };
String[] sizeString = { "初号 ", "小初 ", "一号 ", "小一 ", "二号 ", "小二 ",
"三号 ", "小三 ", "四号 ", "小四 ", "五号 ", "小五 ", "六号 ", "小六 ", "七号 ",
"八号 ", "5 ", "8 ", "9 ", "10 ", "11 ", "12 ", "14 ", "16 ",
"18 ", "20 ", "22 ", "24 ", "26 ", "28 ", "36 ", "48 ", "72 " };
int[] sizeValue = { 42, 36, 26, 24, 22, 18, 16, 15, 14, 12, 11, 9, 7,
6, 5, 4, 5, 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 26, 28,
36, 48, 72 };
for (int i = 0; i < sizeString.length; i++) {
ht.put(sizeString[i], sizeValue[i]);
}
face = new JList(faceString);
size = new JList(sizeString);
face.setSelectedIndex(0);
size.setSelectedIndex(25);
fonts.setSelectedItem("宋体 ");
face.setVisibleRowCount(4);
size.setVisibleRowCount(4);
ok = new JButton("确定 ");
cancel = new JButton("取消 ");
ok.addActionListener(this);
cancel.addActionListener(this);
fonts.addActionListener(this);
face.addListSelectionListener(this);
size.addListSelectionListener(this);
}
private void initWindow(String title) {
this.setLayout(new BorderLayout());
JLabel fontLabel = new JLabel("字体 ");
JLabel faceLabel = new JLabel("字形 ");
JLabel sizeLabel = new JLabel("字号 ");
fontLabel.setForeground(Color.RED);
faceLabel.setForeground(Color.RED);
sizeLabel.setForeground(Color.RED);
fontLabel.setBounds(20, 20, 100, 20);
faceLabel.setBounds(180, 20, 80, 20);
sizeLabel.setBounds(260, 20, 50, 20);
fonts.setBounds(10, 40, 127, 21);
JScrollPane faceScroll = new JScrollPane(face);
JScrollPane sizeScroll = new JScrollPane(size);
faceScroll.setBounds(180, 40, 65, 100);
sizeScroll.setBounds(260, 60, 50, 80);
JPanel up = new JPanel(null);
JPanel center = new JPanel(new BorderLayout());
JPanel bottom = new JPanel();
up.setPreferredSize(new Dimension(345, 160));
up.add(fontLabel);
up.add(faceLabel);
up.add(sizeLabel);
up.add(fonts);
up.add(faceScroll);
up.add(sizeScroll);
up.add(sizeJT);
// up.setBorder(BorderFactory.createTitledBorder( "选择区 "));
center.add(demo, BorderLayout.CENTER);
center.setBorder(BorderFactory.createTitledBorder("预览 "));
bottom.add(ok);
bottom.add(cancel);
this.add(up, BorderLayout.NORTH);
this.add(center, BorderLayout.CENTER);
this.add(bottom, BorderLayout.SOUTH);
jd = new JDialog(owner, title, true);
jd.getContentPane().add(this, BorderLayout.CENTER);
jd.setSize(360, 360);
jd.setResizable(false);
jd.setLocationRelativeTo(owner);
jd.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent we) {
current = null;
jd.dispose();
}
});
jd.setVisible(true);
}
public void actionPerformed(ActionEvent ae) {
if (ae.getSource() == fonts) {
fontName = (String) fonts.getSelectedItem();
current = new Font(fontName, fontStyle, fontSize);
demo.setFont(current);
this.repaint();
} else if (ae.getSource() == ok) {
jd.dispose();
} else if (ae.getSource() == cancel) {
current = null;
jd.dispose();
}
}
public void valueChanged(ListSelectionEvent le) {
if (le.getSource() == face) {
String value = (String) face.getSelectedValue();
if (value.equals("正常 ")) {
fontStyle = Font.PLAIN;
} else if (value.equals("粗体 ")) {
fontStyle = Font.BOLD;
} else if (value.equals("斜体 ")) {
fontStyle = Font.ITALIC;
} else if (value.equals("粗体+斜体 ")) {
fontStyle = Font.ITALIC | Font.BOLD;
}
current = new Font(fontName, fontStyle, fontSize);
demo.setFont(current);
this.repaint();
} else if (le.getSource() == size) {
String sizeName = (String) size.getSelectedValue();
sizeJT.setText(sizeName);
fontSize = ht.get(sizeName);
current = new Font(fontName, fontStyle, fontSize);
demo.setFont(current);
this.repaint();
}
}
public static Font showDialog(Frame owner, String title) {
JFontChooser jf = new JFontChooser();
jf.initWindow(title);
return jf.current;
}
public static void main(String[] args) {
System.out.println(JFontChooser.showDialog(null, "字体选择 "));
}
}