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/*
* IzPack - Copyright 2001-2012 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.izforge.izpack.installer.language;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GraphicsEnvironment;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.TreeMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.GrayFilter;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.ListCellRenderer;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import com.izforge.izpack.api.GuiId;
import com.izforge.izpack.api.exception.ResourceException;
import com.izforge.izpack.api.resource.Locales;
import com.izforge.izpack.api.resource.Resources;
import com.izforge.izpack.installer.container.provider.AbstractInstallDataProvider;
import com.izforge.izpack.installer.data.GUIInstallData;
import com.izforge.izpack.installer.requirement.RequirementsChecker;
/**
* Used to prompt the user for the language. Languages can be displayed in iso3 or the native
* notation or the notation of the default locale. Revising to native notation is based on code
* from Christian Murphy (patch #395).
*
* @author Julien Ponge
* @author Christian Murphy
* @author Klaus Bartz
*/
public class LanguageDialog extends JDialog
{
private static final long serialVersionUID = 3256443616359887667L;
/**
* The parent frame.
*/
private final JFrame frame;
/**
* The installation data.
*/
private final GUIInstallData installData;
/**
* The resources.
*/
private final Resources resources;
/**
* The supported locales.
*/
private final Locales locales;
/**
* Installation requirements checker.
*/
private final RequirementsChecker requirements;
/**
* Maps ISO3 codes to the corresponding language display values.
*/
private Map displayNames = new HashMap();
/**
* The combo box.
*/
private JComboBox comboBox;
/**
* The logger.
*/
private static final Logger logger = Logger.getLogger(LanguageDialog.class.getName());
/**
* Constructs a {@code LanguageDialog}.
*
* @param frame the parent frame
* @param resources the resources
* @param locales the locales
* @param installData the installation data
* @param requirements the installation requirements
*/
public LanguageDialog(JFrame frame, Resources resources, Locales locales, GUIInstallData installData,
RequirementsChecker requirements)
{
super(frame);
this.frame = frame;
this.resources = resources;
this.locales = locales;
this.installData = installData;
this.requirements = requirements;
this.setName(GuiId.DIALOG_PICKER.id);
initialise();
}
/**
* Displays the dialog.
*
* @throws Exception for any error
*/
public void initLangPack() throws Exception
{
// Loads the suitable langpack
switch (locales.getLocales().size()) {
case 0:
// nothing to do at this point
break;
case 1:
// propagate the specified language
String codeOfUniqueLanguage = displayNames.keySet().iterator().next();
propagateLocale(codeOfUniqueLanguage);
break;
default:
frame.setVisible(false);
setVisible(true);
}
// check installer conditions
if (!requirements.check())
{
logger.info("Not all installer requirements are fulfilled.");
System.exit(-1);
}
}
/**
* Initialises the dialog.
*/
private void initialise()
{
JPanel contentPane = (JPanel) getContentPane();
Languages languages = new Languages(locales, installData, contentPane.getFont());
// We build the GUI
addWindowListener(new WindowHandler());
setTitle("Language Selection");
GridBagLayout layout = new GridBagLayout();
contentPane.setLayout(layout);
GridBagConstraints gbConstraints = new GridBagConstraints();
gbConstraints.anchor = GridBagConstraints.CENTER;
gbConstraints.insets = new Insets(5, 5, 5, 5);
gbConstraints.fill = GridBagConstraints.HORIZONTAL;
gbConstraints.gridx = 0;
gbConstraints.weightx = 1.0;
gbConstraints.weighty = 1.0;
gbConstraints.ipadx = 0;
gbConstraints.ipady = 6;
ImageIcon img = getImage();
JLabel imgLabel = new JLabel(img);
gbConstraints.gridy = 0;
contentPane.add(imgLabel);
String firstMessage = "Please select your language";
if (languages.getDisplayType() == Languages.DisplayType.ISO3)
{
// TODO - Not sure why this is specific to ISO3. Should be localised too.
firstMessage = "Please select your language below";
}
JLabel label1 = new JLabel(firstMessage, SwingConstants.LEADING);
gbConstraints.gridy = 1;
gbConstraints.insets = new Insets(15, 5, 5, 5);
layout.addLayoutComponent(label1, gbConstraints);
contentPane.add(label1);
gbConstraints.insets = new Insets(5, 5, 5, 5);
displayNames = languages.getDisplayNames();
comboBox = new JComboBox(displayNames.keySet().toArray());
comboBox.setName(GuiId.COMBO_BOX_LANG_FLAG.id);
if (useFlags())
{
comboBox.setRenderer(new FlagRenderer());
}
else
{
comboBox.setRenderer(new LanguageRenderer());
}
gbConstraints.gridy = 3;
layout.addLayoutComponent(comboBox, gbConstraints);
contentPane.add(comboBox);
gbConstraints.insets = new Insets(15, 5, 15, 5);
JButton okButton = new JButton("OK");
okButton.setName(GuiId.BUTTON_LANG_OK.id);
okButton.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
onOK();
}
});
gbConstraints.fill = GridBagConstraints.NONE;
gbConstraints.gridy = 4;
gbConstraints.anchor = GridBagConstraints.CENTER;
layout.addLayoutComponent(okButton, gbConstraints);
contentPane.add(okButton);
getRootPane().setDefaultButton(okButton);
// Packs and centers
// Fix for bug "Installer won't show anything on OSX"
if (System.getProperty("mrj.version") == null)
{
pack();
}
setSize(getPreferredSize());
Dimension frameSize = getSize();
Point center = GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint();
setLocation(center.x - frameSize.width / 2, center.y - frameSize.height / 2 - 10);
setResizable(true);
comboBox.setSelectedItem(Locale.getDefault().getISO3Language().toLowerCase());
setModal(true);
toFront();
}
/**
* Loads an image.
*
* @return The image icon.
*/
private ImageIcon getImage()
{
ImageIcon img;
try
{
img = resources.getImageIcon("installer.langsel.img");
}
catch (Exception err)
{
img = null;
}
return img;
}
private void onOK()
{
String selectedPack = (String) comboBox.getSelectedItem();
if (selectedPack == null)
{
throw new RuntimeException("installation canceled");
}
propagateLocale(selectedPack);
dispose();
}
/**
* The window events handler.
*
* @author Julien Ponge
*/
private class WindowHandler extends WindowAdapter
{
/**
* We can't avoid the exit here, so don't call exit anywhere else.
*
* @param e the event.
*/
@Override
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
/**
* Returns whether flags should be used in the language selection dialog or not.
*
* @return whether flags should be used in the language selection dialog or not
*/
private boolean useFlags()
{
if (installData.guiPrefs.modifier.containsKey("useFlags")
&& "no".equalsIgnoreCase(installData.guiPrefs.modifier.get("useFlags")))
{
return (false);
}
return (true);
}
/**
* Sets the selected locale on the installation data.
*
* @param code the locale ISO code
*/
private void propagateLocale(String code)
{
try
{
locales.setLocale(code);
Locale newLocale = locales.getLocale();
Locale.setDefault(newLocale);
JComponent.setDefaultLocale(newLocale);
SwingUtilities.updateComponentTreeUI(this);
installData.setLocale(locales.getLocale(), locales.getISOCode());
installData.setMessages(locales.getMessages());
AbstractInstallDataProvider.addCustomLangpack(installData, locales);
// Configure buttons after locale has been loaded
installData.configureGuiButtons();
}
catch (Exception exception)
{
logger.log(Level.SEVERE, exception.getMessage(), exception);
}
}
/**
* A list cell renderer to display the language given is ISO3 code.
*/
private class LanguageRenderer extends JLabel implements ListCellRenderer
{
/**
* Return a component that has been configured to display the specified value.
*
* @param list the list
* @param value the value to display
* @param index the cells index.
* @param isSelected true if the specified cell was selected.
* @param cellHasFocus true if the specified cell has the focus
* @return a component to render the value
*/
@Override
public Component getListCellRendererComponent(JList list, Object value, int index,
boolean isSelected, boolean cellHasFocus)
{
String code = (String) value;
setText(displayNames.get(code));
if (isSelected)
{
setForeground(list.getSelectionForeground());
setBackground(list.getSelectionBackground());
}
else
{
setForeground(list.getForeground());
setBackground(list.getBackground());
}
return this;
}
}
/**
* A list cell renderer that adds the flags on the display.
*
* @author Julien Ponge
*/
private class FlagRenderer extends LanguageRenderer
{
/**
* Icons cache.
*/
private TreeMap icons = new TreeMap();
/**
* Grayed icons cache.
*/
private TreeMap grayIcons = new TreeMap();
/**
* Default constructor.
*/
public FlagRenderer()
{
setOpaque(true);
}
/**
* Returns a suitable cell.
*
* @param list The list.
* @param value The object.
* @param index The index.
* @param isSelected true if it is selected.
* @param cellHasFocus Description of the Parameter
* @return The cell.
*/
@Override
public Component getListCellRendererComponent(JList list, Object value, int index,
boolean isSelected, boolean cellHasFocus)
{
Component result = super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
String code = (String) value;
if (!icons.containsKey(code))
{
try
{
ImageIcon icon;
icon = resources.getImageIcon("flag." + code);
icons.put(code, icon);
icon = new ImageIcon(GrayFilter.createDisabledImage(icon.getImage()));
grayIcons.put(code, icon);
}
catch (ResourceException exception)
{
logger.log(Level.WARNING, exception.getMessage(), exception);
}
}
if (isSelected || index == -1)
{
setIcon(icons.get(code));
}
else
{
setIcon(grayIcons.get(code));
}
return result;
}
}
}
