/// <summary>
/// Loads the specified options file.
/// </summary>
/// <param name="optionsFile">The options file.</param>
/// <returns>The deserialized instance of this class</returns>
public static MainOptions Load(string optionsFile)
{
MainOptions options = null; //the instance to return
if (File.Exists(optionsFile))
{
//Initializes a new instance of the class, to deserialize the options file
XmlSerializer serializer = new XmlSerializer(typeof(MainOptions));
//Read option files
StreamReader streamReader = new StreamReader(optionsFile);
XmlTextReader xmlReader = new XmlTextReader(streamReader);
//Deserializes it
if (serializer.CanDeserialize(xmlReader))
{
options = (MainOptions)serializer.Deserialize(xmlReader);
}
//Closes rssources
xmlReader.Close();
streamReader.Close();
}
//If the file doesn't exist or contains error, create a new one.
if (options == null)
{
options = CreateNewOptionsFile(optionsFile);
}
return(options);
}
/// <summary>
/// Loads the options.
/// </summary>
/// <returns></returns>
private static bool LoadOptions()
{
try {
//Deserializes options file as MainOptions class into Option
Options = MainOptions.Load();
return(true);
} catch (Exception ex) {
//Houston, we've a problem.
if (DialogResult.No == MessageBox.Show("Error loading preferences file.\n" + ex.Message + "\n\nDo you want to create a new file ?\n\nIf yes, your previous dots will be lost.\nIf no, SeaChart will terminate and you can manually fix the options file.", "Preferences error", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1))
{
//The user wants to terminate SeaChart to manually fix the problem.
return(false);
}
}
//The uesrs wants to create a new options file
try {
Options = MainOptions.CreateNewOptionsFile(MainOptions.DefaultOptionsFile);
return(true);
} catch (Exception ex) {
//Arg... a very bad day for the user.
MessageBox.Show(ex.Message, "Preferences error", MessageBoxButtons.OK, MessageBoxIcon.Hand);
return(false);
}
}
/// <summary>
/// Creates a new options file.
/// </summary>
/// <param name="optionsFile">The options file path.</param>
/// <returns>A new instance of this class</returns>
public static MainOptions CreateNewOptionsFile(string optionsFile)
{
//Gets the directory, and create it if it doesn't exist yet
string directoryName = Path.GetDirectoryName(DefaultOptionsFile);
if (directoryName != "" && !Directory.Exists(directoryName))
{
Directory.CreateDirectory(directoryName);
}
//Returns a new instance of the class, and serializes it into the specified XML file.
MainOptions options = new MainOptions();
options.Save(optionsFile);
return(options);
}
