SettingsPanel.java

/*
 * SettingsPanel.java
 *
 */
package org.jmeld.ui.settings;

import org.jmeld.settings.JMeldSettings;
import org.jmeld.ui.JMeldPanel;
import org.jmeld.ui.StatusBar;
import org.jmeld.ui.util.ImageUtil;
import org.jmeld.util.conf.ConfigurationListenerIF;
import org.jmeld.util.conf.ConfigurationManager;
import org.jmeld.util.prefs.FileChooserPreference;

import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

/**
 *
 * @author  kees
 */
public class SettingsPanel
    extends SettingsPanelForm
    implements ConfigurationListenerIF
{
  private DefaultListModel listModel;
  private JMeldPanel mainPanel;

  public SettingsPanel(JMeldPanel mainPanel)
  {
    this.mainPanel = mainPanel;

    init();
    initConfiguration();

    getConfiguration().addConfigurationListener(this);
  }

  private void init()
  {
    settingsPanel.setLayout(new CardLayout());
    for (Settings setting : Settings.values())
    {
      settingsPanel.add(setting.getPanel(), setting.getName());
    }

    initButton(saveButton, "stock_save", "Save settings");
    saveButton.addActionListener(getSaveAction());

    initButton(saveAsButton, "stock_save-as",
      "Save settings to a different file");
    saveAsButton.addActionListener(getSaveAsAction());

    initButton(reloadButton, "stock_reload",
      "Reload settings from a different file");
    reloadButton.addActionListener(getReloadAction());

    fileLabel.setText("");

    listModel = new DefaultListModel();
    for (Settings setting : Settings.values())
    {
      listModel.addElement(setting);
    }
    settingItems.setModel(listModel);
    settingItems.setCellRenderer(new SettingCellRenderer());
    settingItems.setSelectedIndex(0);
    settingItems.addListSelectionListener(getSettingItemsAction());
  }

  private void initButton(JButton button, String iconName, String toolTipText)
  {
    ImageIcon icon;

    button.setText("");
    button.setToolTipText(toolTipText);
    button.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
    button.setContentAreaFilled(false);
    icon = ImageUtil.getSmallImageIcon(iconName);
    button.setIcon(icon);
    button.setDisabledIcon(ImageUtil.createTransparentIcon(icon));
    button.setPressedIcon(ImageUtil.createDarkerIcon(icon));
    button.setFocusable(false);
  }

  public ActionListener getSaveAction()
  {
    return new ActionListener()
    {
      public void actionPerformed(ActionEvent ae)
      {
        getConfiguration().save();
        StatusBar.getInstance().setText("Configuration saved");
      }
    };
  }

  public ActionListener getSaveAsAction()
  {
    return new ActionListener()
    {
      public void actionPerformed(ActionEvent ae)
      {
        JFileChooser chooser;
        int result;
        File file;
        FileChooserPreference pref;
        Window ancestor;

        chooser = new JFileChooser();
        chooser.setApproveButtonText("Save");
        chooser.setDialogTitle("Save settings");
        pref = new FileChooserPreference("SettingsSave", chooser);

        ancestor = SwingUtilities.getWindowAncestor((Component) ae.getSource());
        result = chooser.showOpenDialog(ancestor);
        if (result == JFileChooser.APPROVE_OPTION)
        {
          pref.save();
          file = chooser.getSelectedFile();
          getConfiguration().setConfigurationFile(file);
          getConfiguration().save();
          StatusBar.getInstance().setText("Configuration saved to " + file);
        }
      }
    };
  }

  public ActionListener getReloadAction()
  {
    return new ActionListener()
    {
      public void actionPerformed(ActionEvent ae)
      {
        JFileChooser chooser;
        int result;
        File file;
        FileChooserPreference pref;
        Window ancestor;

        chooser = new JFileChooser();
        chooser.setApproveButtonText("Reload");
        chooser.setDialogTitle("Reload settings");
        pref = new FileChooserPreference("SettingsSave", chooser);

        ancestor = SwingUtilities.getWindowAncestor((Component) ae.getSource());
        result = chooser.showOpenDialog(ancestor);
        if (result == JFileChooser.APPROVE_OPTION)
        {
          pref.save();
          file = chooser.getSelectedFile();
          if (!ConfigurationManager.getInstance().reload(file,
            getConfiguration().getClass()))
          {
            StatusBar.getInstance().setAlarm("Failed to reload from " + file);
          }
        }
      }
    };
  }

  public ListSelectionListener getSettingItemsAction()
  {
    return new ListSelectionListener()
    {
      public void valueChanged(ListSelectionEvent event)
      {
        CardLayout layout;
        Settings settings;

        settings = (Settings) settingItems.getSelectedValue();
        layout = (CardLayout) settingsPanel.getLayout();
        layout.show(settingsPanel, settings.getName());
      }
    };
  }

  public void configurationChanged()
  {
    initConfiguration();
  }

  private void initConfiguration()
  {
    JMeldSettings c;

    c = getConfiguration();

    fileLabel.setText(c.getConfigurationFileName());
    saveButton.setEnabled(c.isChanged());
  }

  public boolean checkSave()
  {
    SaveSettingsDialog dialog;

    if (getConfiguration().isChanged())
    {
      dialog = new SaveSettingsDialog(mainPanel);
      dialog.show();
      if (dialog.isOK())
      {
        dialog.doSave();
      }
    }

    return true;
  }

  private JMeldSettings getConfiguration()
  {
    return JMeldSettings.getInstance();
  }
}