content: package tim.prune.function.settings;
  
  import java.awt.Rectangle;
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  
  import javax.swing.JFileChooser;
  
  import tim.prune.App;
  import tim.prune.GenericFunction;
  import tim.prune.I18nManager;
  import tim.prune.config.Config;
  import tim.prune.config.ConfigPaths;
  import tim.prune.data.DoubleRange;
  import tim.prune.data.Track;
  import tim.prune.tips.TipManager;
  
  /**
   * Class to provide the function to save the config settings
   */
  public class SaveConfig extends GenericFunction
  {
  	/**
  	 * Constructor
  	 * @param inApp application object for callback
  	 */
  	public SaveConfig(App inApp) {
  		super(inApp);
  	}
  
  	/** Get the name key */
  	public String getNameKey() {
  		return "function.saveconfig";
  	}
  
  	/**
  	 * Begin the function
  	 */
  	public void begin()
  	{
  		File configFile = getConfig().getConfigFile();
  		if (configFile == null) {
  			configFile = ConfigPaths.getSuggestedConfigFile();
  		}
  		JFileChooser chooser = new JFileChooser(configFile.getAbsoluteFile().getParent());
  		chooser.setSelectedFile(configFile);
  		int response = chooser.showSaveDialog(_parentFrame);
  		if (response == JFileChooser.APPROVE_OPTION)
  		{
  			File saveFile = chooser.getSelectedFile();
  			saveConfig(getConfig(), saveFile);
  			if (!saveFile.getName().equals(ConfigPaths.getDefaultFilename()))
  			{
  				// User chose a name which isn't the default, so show a tip
  				_app.showTip(TipManager.Tip_NonStandardConfigFile);
  			}
  		}
  	}
  
  	/**
  	 * Autosave the settings file without any prompts
  	 * @return true if save was successful
  	 */
  	public boolean silentSave() {
  		return saveConfig(getConfig(), getConfig().getConfigFile());
  	}
  
  	/**
  	 * Autosave has been turned on or off, so maybe need to save
  	 * @param inSaveOn true if autosave was switched on
  	 */
  	public void autosaveSwitched(boolean inSaveOn)
  	{
  		File configFile = getConfig().getConfigFile();
  		if (inSaveOn && configFile == null) {
  			begin();
  		}
  		else if (!inSaveOn && configFile != null) {
  			silentSave();
  		}
  	}
  
  	/**
  	 * Actually save the config file
  	 * @param inConfig config to save
  	 * @param inSaveFile file to save
  	 * @return true if save was successful
  	 */
  	private boolean saveConfig(Config inConfig, File inSaveFile)
  	{
  		// Set current window position in config
  		Rectangle currBounds = _app.getFrame().getBounds();
  		String windowBounds = "" + currBounds.x + "x" + currBounds.y + "x"
  			+ currBounds.width + "x" + currBounds.height;
  		inConfig.setConfigString(Config.KEY_WINDOW_BOUNDS, windowBounds);
  
  		final String latlonString = createLatLonStringForConfig();
  		if (latlonString != null) {
  			inConfig.setConfigString(Config.KEY_LATLON_RANGE, latlonString);
  		}
  
  		boolean saved = false;
  		try (FileOutputStream outStream = new FileOutputStream(inSaveFile))
  		{
  			inConfig.getAllConfig().store(outStream, "GpsPrune config file");
  			saved = true;
  		} catch (IOException ioe) {
  			_app.showErrorMessageNoLookup(getNameKey(),
  				I18nManager.getText("error.save.failed") + " : " + ioe.getMessage());
  		} catch (NullPointerException npe) {
  		}
  		// Remember where it was saved to
  		inConfig.setConfigFile(inSaveFile);
  		return saved;
  	}
  
  	/**
  	 * @return semicolon-separated string containing the four values, or null
  	 */
  	private String createLatLonStringForConfig()
  	{
  		Track track = _app.getTrackInfo().getTrack();
  		if (track.getNumPoints() >= 2)
  		{
  			final DoubleRange latRange = track.getLatRange();
  			final DoubleRange lonRange = track.getLonRange();
  			if (latRange.getRange() > 0.0 && lonRange.getRange() > 0.0)
  			{
  				return latRange.getMinimum() + ";"
  					+ latRange.getMaximum() + ";"
  					+ lonRange.getMinimum() + ";"
  					+ lonRange.getMaximum();
  			}
  		}
  		return null;
  	}
  }
  