skrueger/i8n/LanguagesComboBox.java

package skrueger.i8n;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Locale;
import java.util.Vector;

import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;

/**
 * A JComboBox that shows the user a list of languages
 */
public class LanguagesComboBox extends JComboBox {

        private Vector<String> availLangs = new Vector<String>();

        public LanguagesComboBox() {
                super();
        }

        /**
         * Create a ComboBox with the given langauges as options
         */
        public LanguagesComboBox(Collection<String> langCodes) {
                this();
                updateModel(langCodes, null);
        }

        /**
         * Create a ComboBox with the given languages as options, excluding the
         * second parameter.
         * 
         * @param langCodes
         *            If <code>null</code>, {@link I8NUtil#getLanguageCodes()} will
         *            be used
         */
        public LanguagesComboBox(Collection<String> langCodes,
                        Collection<String> langCodesNotOffer) {
                this();
                updateModel(langCodes, langCodesNotOffer);
        }

        public void updateModel(Collection<String> langCodes,
                        Collection<String> langCodesNotOffer) {

                if (langCodes == null) {
                        langCodes = I8NUtil.getLanguageCodes();
                }

                if (langCodesNotOffer != null) {
                        langCodes = new ArrayList<String>(langCodes);
                        langCodes.removeAll(langCodesNotOffer);
                }

                availLangs.clear();

                for (String lc : langCodes) {
                        Locale locale = I8NUtil.getFirstLocaleForLang(lc);

                        availLangs.add(locale.getDisplayLanguage() + " / "
                                        + locale.getDisplayLanguage(locale) + " " + lc);
                }

                Collections.sort(availLangs);

                setModel(new DefaultComboBoxModel(availLangs));
                setSelectedIndex(-1);
                repaint();
        }

        public String getSelectedLanguage() {
                if (getSelectedIndex() < 0)
                        return null;
                String langDescription = availLangs.get(getSelectedIndex());

                return langDescription.substring(langDescription.lastIndexOf(" "))
                                .trim();
        }

}
1	alfonx	1150	package skrueger.i8n;
2
3			import java.util.ArrayList;
4			import java.util.Collection;
5			import java.util.Collections;
6			import java.util.Locale;
7			import java.util.Vector;
8
9			import javax.swing.DefaultComboBoxModel;
10			import javax.swing.JComboBox;
11
12			/**
13			* A JComboBox that shows the user a list of languages
14			*/
15			public class LanguagesComboBox extends JComboBox {
16
17			private Vector<String> availLangs = new Vector<String>();
18
19			public LanguagesComboBox() {
20			super();
21			}
22
23			/**
24			* Create a ComboBox with the given langauges as options
25			*/
26			public LanguagesComboBox(Collection<String> langCodes) {
27			this();
28			updateModel(langCodes, null);
29			}
30
31			/**
32			* Create a ComboBox with the given languages as options, excluding the
33			* second parameter.
34			*
35			* @param langCodes
36			* If <code>null</code>, {@link I8NUtil#getLanguageCodes()} will
37			* be used
38			*/
39			public LanguagesComboBox(Collection<String> langCodes,
40			Collection<String> langCodesNotOffer) {
41			this();
42			updateModel(langCodes, langCodesNotOffer);
43			}
44
45			public void updateModel(Collection<String> langCodes,
46			Collection<String> langCodesNotOffer) {
47
48			if (langCodes == null) {
49			langCodes = I8NUtil.getLanguageCodes();
50			}
51
52			if (langCodesNotOffer != null) {
53			langCodes = new ArrayList<String>(langCodes);
54			langCodes.removeAll(langCodesNotOffer);
55			}
56
57			availLangs.clear();
58
59			for (String lc : langCodes) {
60			Locale locale = I8NUtil.getFirstLocaleForLang(lc);
61
62			availLangs.add(locale.getDisplayLanguage() + " / "
63			+ locale.getDisplayLanguage(locale) + " " + lc);
64			}
65
66			Collections.sort(availLangs);
67
68			setModel(new DefaultComboBoxModel(availLangs));
69			setSelectedIndex(-1);
70			repaint();
71			}
72
73			public String getSelectedLanguage() {
74			if (getSelectedIndex() < 0)
75			return null;
76			String langDescription = availLangs.get(getSelectedIndex());
77
78			return langDescription.substring(langDescription.lastIndexOf(" "))
79			.trim();
80			}
81
82			}
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