skrueger/i8n/SwitchLanguageDialog.java

/*******************************************************************************
 * Copyright (c) 2009 Martin O. J. Schmitz.
 * 
 * This file is part of the SCHMITZM library - a collection of utility 
 * classes based on Java 1.6, focusing (not only) on Java Swing 
 * and the Geotools library.
 * 
 * The SCHMITZM project is hosted at:
 * http://wald.intevation.org/projects/schmitzm/
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License (license.txt)
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * or try this link: http://www.gnu.org/licenses/lgpl.html
 * 
 * Contributors:
 *     Martin O. J. Schmitz - initial API and implementation
 *     Stefan A. Tzeggai - additional utility classes
 ******************************************************************************/
package skrueger.i8n;

import java.awt.Component;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;

import net.miginfocom.swing.MigLayout;

import org.apache.log4j.Logger;

import schmitzm.swing.SwingUtil;
import skrueger.swing.AtlasDialog;
import skrueger.swing.OkButton;
import skrueger.swing.TranslationEditJPanel;

/**
 * This dialog ask the user to select one of list of given languages. The dialog
 * is modal and not visible after construction.
 * 
 * @author Stefan A. Tzeggai
 */
public class SwitchLanguageDialog extends AtlasDialog {
    protected Logger LOGGER = Logger.getLogger(SwitchLanguageDialog.class);

    private JPanel jContentPane = null;

    private JLabel jLabelFlagimage = null;

    private JPanel jPanel = null;

    private JLabel jLabel = null;

    private LanguagesComboBox jComboBox = null;

    private final List<String> languages;

    /**
     * if <code>true</code>, the default locale will also be changed during a
     * language selection
     **/
    protected boolean setLocale;

    /**
     * A dialog to select one of the available languages. If only one language
     * is available, select it directly. Creating this object automatically
     * makes it visible, unless there is only one language to choose from.. it
     * that case it disposes itself automatically.
     * 
     * @param setLocale if <code>true</code>, the default locale will also be
     *        changed during a language selection
     */
    public SwitchLanguageDialog(final Component owner,
            final List<String> languages, boolean setLocale) {
        super(owner);
        this.languages = languages;
        this.setLocale = setLocale;

        if (languages == null || languages.size() == 0) {
            // No language is available.
            return;
        }

        Translation.setActiveLang(languages.get(0), setLocale);
        if (languages.size() == 1) {
            // Only language one language is available. It has been selected
            // automatically.
            return;
        }

        initialize();
    }

    @Override
    /**
     * This modal dialog will not appear if there is <= one language to select from.
     */
    public void setVisible(boolean b) {
        if (b == true && (languages == null || languages.size() <= 1)) {
            return;
        }
        super.setVisible(b);
    }

    /**
     * This method initializes this
     * 
     * @return void
     */
    private void initialize() {
        this.setContentPane(getJContentPane());

        pack();

        SwingUtil.centerFrameOnScreenRandom(this);
        setModal(true);
    }

    public boolean close() {
        // Only close by ESC and window-close if a valid selection is made
        if (jComboBox.getSelectedIndex() == languages.size()
                || jComboBox.getSelectedIndex() == -1)
            return false;
        else
            return super.close();
    }

    /**
     * This method initializes jContentPane
     * 
     * @return javax.swing.JPanel
     */
    private JPanel getJContentPane() {
        if (jContentPane == null) {
            jLabelFlagimage = new JLabel(new ImageIcon(
                    TranslationEditJPanel.class
                            .getResource("resource/flags.jpg")));
            jContentPane = new JPanel();
            MigLayout migLayout = new MigLayout("wrap 1", "[center]", "[]0[]");
            jContentPane.setLayout(migLayout);
            jContentPane.add(jLabelFlagimage, "north");
            jContentPane.add(getLanguageCombobox());
            jContentPane.add(getOkButton(), // AtlasDialog.getOkButton()
                    "right, w 50!, gaptop 5, gapright 5, gapbottom 5");
        }
        return jContentPane;
    }

    /**
     * This method initializes the JPanel that carries the select language
     * combobox
     * 
     * @return javax.swing.JPanel
     */
    private JPanel getLanguageCombobox() {
        if (jPanel == null) {
            jLabel = new JLabel();
            jLabel.setText("Select language: "); // i8n!?! Maybe replace with an
            // icon of an index finger
            jPanel = new JPanel();
            jPanel.add(jLabel);
            jPanel.add(getJComboBox());
        }
        return jPanel;
    }

    /**
     * This method initializes the Select Language Combobox
     * 
     * @return javax.swing.JComboBox
     */
    private JComboBox getJComboBox() {
        if (jComboBox == null) {
            ArrayList<String> languagesPlusOne = new ArrayList<String>(
                    languages);
            languagesPlusOne.add("?");

            jComboBox = new LanguagesComboBox(languages);

            SwingUtil.addMouseWheelForCombobox(jComboBox);
            jComboBox.addActionListener(new ActionListener() {

                public void actionPerformed(final ActionEvent e) {
                    if (jComboBox.getSelectedIndex() == languages.size()) {
                        getOkButton().setEnabled(false);
                        return;
                    }

                    String l = languages.get(jComboBox.getSelectedIndex());
                    try {
                        Translation.setActiveLang(l, setLocale);

                        getOkButton().setEnabled(true);
                    } catch (java.lang.IllegalArgumentException ee) {
                        LOGGER.warn("The language " + l + " is not valid", ee);
                        getOkButton().setEnabled(false);
                    }

                }

            });
        }
        return jComboBox;
    }

}
1	alfonx	244	/*******************************************************************************
2			* Copyright (c) 2009 Martin O. J. Schmitz.
3			*
4			* This file is part of the SCHMITZM library - a collection of utility
5	alfonx	256	* classes based on Java 1.6, focusing (not only) on Java Swing
6	alfonx	244	* and the Geotools library.
7			*
8			* The SCHMITZM project is hosted at:
9			* http://wald.intevation.org/projects/schmitzm/
10			*
11			* This program is free software; you can redistribute it and/or
12			* modify it under the terms of the GNU Lesser General Public License
13			* as published by the Free Software Foundation; either version 3
14			* of the License, or (at your option) any later version.
15			*
16			* This program is distributed in the hope that it will be useful,
17			* but WITHOUT ANY WARRANTY; without even the implied warranty of
18			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19			* GNU General Public License for more details.
20			*
21			* You should have received a copy of the GNU Lesser General Public License (license.txt)
22			* along with this program; if not, write to the Free Software
23			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24			* or try this link: http://www.gnu.org/licenses/lgpl.html
25			*
26			* Contributors:
27			* Martin O. J. Schmitz - initial API and implementation
28	alfonx	862	* Stefan A. Tzeggai - additional utility classes
29	alfonx	244	******************************************************************************/
30			package skrueger.i8n;
31
32			import java.awt.Component;
33			import java.awt.GridBagConstraints;
34			import java.awt.GridBagLayout;
35			import java.awt.Insets;
36			import java.awt.event.ActionEvent;
37			import java.awt.event.ActionListener;
38	alfonx	1150	import java.util.ArrayList;
39	alfonx	244	import java.util.List;
40
41			import javax.swing.ImageIcon;
42			import javax.swing.JButton;
43			import javax.swing.JComboBox;
44			import javax.swing.JLabel;
45			import javax.swing.JPanel;
46
47	keeb	1290	import net.miginfocom.swing.MigLayout;
48
49	alfonx	244	import org.apache.log4j.Logger;
50
51			import schmitzm.swing.SwingUtil;
52	alfonx	1098	import skrueger.swing.AtlasDialog;
53	alfonx	244	import skrueger.swing.OkButton;
54			import skrueger.swing.TranslationEditJPanel;
55
56			/**
57			* This dialog ask the user to select one of list of given languages. The dialog
58			* is modal and not visible after construction.
59			*
60	alfonx	1098	* @author Stefan A. Tzeggai
61	alfonx	244	*/
62	alfonx	1098	public class SwitchLanguageDialog extends AtlasDialog {
63	keeb	1290	protected Logger LOGGER = Logger.getLogger(SwitchLanguageDialog.class);
64	alfonx	244
65	keeb	1290	private JPanel jContentPane = null;
66	alfonx	244
67	keeb	1290	private JLabel jLabelFlagimage = null;
68	alfonx	244
69	keeb	1290	private JPanel jPanel = null;
70	alfonx	244
71	keeb	1290	private JLabel jLabel = null;
72	alfonx	244
73	keeb	1290	private LanguagesComboBox jComboBox = null;
74	alfonx	244
75	keeb	1290	private final List<String> languages;
76	alfonx	244
77	keeb	1290	/**
78			* if <code>true</code>, the default locale will also be changed during a
79			* language selection
80			**/
81			protected boolean setLocale;
82	alfonx	244
83	keeb	1290	/**
84			* A dialog to select one of the available languages. If only one language
85			* is available, select it directly. Creating this object automatically
86			* makes it visible, unless there is only one language to choose from.. it
87			* that case it disposes itself automatically.
88			*
89			* @param setLocale if <code>true</code>, the default locale will also be
90			* changed during a language selection
91			*/
92			public SwitchLanguageDialog(final Component owner,
93			final List<String> languages, boolean setLocale) {
94			super(owner);
95			this.languages = languages;
96			this.setLocale = setLocale;
97	alfonx	244
98	keeb	1290	if (languages == null \|\| languages.size() == 0) {
99			// No language is available.
100			return;
101			}
102	alfonx	1098
103	keeb	1290	Translation.setActiveLang(languages.get(0), setLocale);
104			if (languages.size() == 1) {
105			// Only language one language is available. It has been selected
106			// automatically.
107			return;
108			}
109	alfonx	244
110	keeb	1290	initialize();
111			}
112	alfonx	244
113	keeb	1290	@Override
114			/**
115			* This modal dialog will not appear if there is <= one language to select from.
116			*/
117			public void setVisible(boolean b) {
118			if (b == true && (languages == null \|\| languages.size() <= 1)) {
119			return;
120			}
121			super.setVisible(b);
122			}
123	alfonx	244
124	keeb	1290	/**
125			* This method initializes this
126			*
127			* @return void
128			*/
129			private void initialize() {
130			this.setContentPane(getJContentPane());
131	alfonx	244
132	keeb	1290	pack();
133	alfonx	1098
134	keeb	1290	SwingUtil.centerFrameOnScreenRandom(this);
135			setModal(true);
136			}
137	alfonx	244
138	keeb	1290	public boolean close() {
139			// Only close by ESC and window-close if a valid selection is made
140			if (jComboBox.getSelectedIndex() == languages.size()
141			\|\| jComboBox.getSelectedIndex() == -1)
142			return false;
143			else
144			return super.close();
145			}
146	alfonx	607
147	keeb	1290	/**
148			* This method initializes jContentPane
149			*
150			* @return javax.swing.JPanel
151			*/
152			private JPanel getJContentPane() {
153			if (jContentPane == null) {
154			jLabelFlagimage = new JLabel(new ImageIcon(
155			TranslationEditJPanel.class
156			.getResource("resource/flags.jpg")));
157			jContentPane = new JPanel();
158			MigLayout migLayout = new MigLayout("wrap 1", "[center]", "[]0[]");
159			jContentPane.setLayout(migLayout);
160			jContentPane.add(jLabelFlagimage, "north");
161			jContentPane.add(getLanguageCombobox());
162			jContentPane.add(getOkButton(), // AtlasDialog.getOkButton()
163			"right, w 50!, gaptop 5, gapright 5, gapbottom 5");
164			}
165			return jContentPane;
166			}
167	alfonx	244
168	keeb	1290	/**
169			* This method initializes the JPanel that carries the select language
170			* combobox
171			*
172			* @return javax.swing.JPanel
173			*/
174			private JPanel getLanguageCombobox() {
175			if (jPanel == null) {
176			jLabel = new JLabel();
177			jLabel.setText("Select language: "); // i8n!?! Maybe replace with an
178			// icon of an index finger
179			jPanel = new JPanel();
180			jPanel.add(jLabel);
181			jPanel.add(getJComboBox());
182			}
183			return jPanel;
184			}
185	alfonx	1098
186	keeb	1290	/**
187			* This method initializes the Select Language Combobox
188			*
189			* @return javax.swing.JComboBox
190			*/
191			private JComboBox getJComboBox() {
192			if (jComboBox == null) {
193			ArrayList<String> languagesPlusOne = new ArrayList<String>(
194			languages);
195			languagesPlusOne.add("?");
196	alfonx	244
197	keeb	1290	jComboBox = new LanguagesComboBox(languages);
198	alfonx	244
199	keeb	1290	SwingUtil.addMouseWheelForCombobox(jComboBox);
200			jComboBox.addActionListener(new ActionListener() {
201	alfonx	244
202	keeb	1290	public void actionPerformed(final ActionEvent e) {
203			if (jComboBox.getSelectedIndex() == languages.size()) {
204			getOkButton().setEnabled(false);
205			return;
206			}
207	alfonx	244
208	keeb	1290	String l = languages.get(jComboBox.getSelectedIndex());
209			try {
210			Translation.setActiveLang(l, setLocale);
211	alfonx	244
212	keeb	1290	getOkButton().setEnabled(true);
213			} catch (java.lang.IllegalArgumentException ee) {
214			LOGGER.warn("The language " + l + " is not valid", ee);
215			getOkButton().setEnabled(false);
216			}
217	alfonx	244
218	keeb	1290	}
219	alfonx	244
220	keeb	1290	});
221			}
222			return jComboBox;
223			}
224	alfonx	244
225	alfonx	607	}