normsample.java

java tutorial.sun公司官方出品。java入门书籍。最新版

/*
 * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Sun Microsystems nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */ 


import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.text.Normalizer;
import javax.swing.*;
import java.util.*;

public class NormSample extends Applet{
    static final long serialVersionUID = 6607883013849198961L;
    JComboBox normalizationTemplate;
    JComboBox formComboBox;
    JComponent paintingComponent;
    HashMap<String, Normalizer.Form> formValues = new HashMap<String, Normalizer.Form>();
    HashMap<String, String> templateValues = new HashMap<String, String>();
    
    public static void main(String[] args) {

//creating an applete for normalization 

        JFrame f = new JFrame("Normalizer's API");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        NormSample applet = new NormSample();
        applet.init();
        f.add("Center", applet);
        f.pack();
        f.setVisible(true);
    }

    public void init(){

//preparing values for the normalization forms ComboBox

        formValues.put("NFC", Normalizer.Form.NFC);
        formValues.put("NFD", Normalizer.Form.NFD);
        formValues.put("NFKC", Normalizer.Form.NFKC);
        formValues.put("NFKD", Normalizer.Form.NFKD);

        formComboBox = new JComboBox();

        for (Iterator it = formValues.keySet().iterator(); it.hasNext();){
            formComboBox.addItem((String)it.next());
        }

//preparing samples for normalization

        //text with the acute accent symbol 
        templateValues.put("acute accent", "touch" + "\u00e9");
     
        //text with ligature
        templateValues.put("ligature", "a" + "\ufb03" + "ance");

        //text with the cedilla
        templateValues.put("cedilla", "fa" + "\u00e7" + "ade");

        //text with half-width katakana
        templateValues.put("half-width katakana", "\uff81\uff6e\uff7a\uff9a\uff70\uff84");

        normalizationTemplate = new JComboBox();

        for (Iterator it = templateValues.keySet().iterator(); it.hasNext();){
            normalizationTemplate.addItem((String)it.next());
        }

//defining a component to output normalization results

        paintingComponent = new JComponent(){
            static final long serialVersionUID = -3725620407788489160L;
            
            public Dimension getSize(){
                    return new Dimension(550, 200);
                }
                public Dimension getPreferredSize(){
                    return new Dimension(550, 200);
                }
                public Dimension getMinimumSize(){
                    return new Dimension(550, 200);
                }
                public void paint (Graphics g) {
                    Graphics2D g2 = (Graphics2D) g;
                    

                    g2.setFont(new Font("Serif", Font.PLAIN, 20));                     
                    g2.setColor(Color.BLACK);
                    g2.drawString("Original string:", 100, 80);
                    g2.drawString("Normalized string:", 100, 120);
                    g2.setFont(new Font("Serif", Font.BOLD, 24));


//output of the original sample selected from the ComboBox 
 
                    String original_string = templateValues.get(normalizationTemplate.getSelectedItem());
                    g2.drawString(original_string, 320, 80);

//normalization and output of the normalized string

                    String normalized_string;
                    java.text.Normalizer.Form currentForm = formValues.get(formComboBox.getSelectedItem());
                    normalized_string = Normalizer.normalize(original_string, currentForm);
                    g2.drawString(normalized_string, 320, 120);
                }
            };
        setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
        add(paintingComponent);
        JPanel controls = new JPanel();
        
        controls.setLayout(new BoxLayout(controls, BoxLayout.X_AXIS));
        controls.add(new Label("Normalization Form: "));
        controls.add(formComboBox);
        controls.add(new Label("Normalization Template:"));
        controls.add(normalizationTemplate);
        add(controls);
        formComboBox.addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e){
                    paintingComponent.repaint();
                }
            });

        normalizationTemplate.addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e){
                    paintingComponent.repaint();
                }
            });
    }
}