public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
bool isSelected = (bool)value;
string languageParameter = parameter as string; // "English" or "Serbian"
LanguageViewModel.Language language = LanguageViewModel.Language.English;
if (languageParameter == null)
{
throw new ArgumentNullException("parameter", "Language parameter not set.");
}
if (isSelected)
{
if (languageParameter == "Serbian")
{
language = LanguageViewModel.Language.Serbian;
}
return(language);
}
else
{
if (languageParameter == "English")
{
language = LanguageViewModel.Language.Serbian;
}
return(language);
}
}
/// <summary>
/// Gets saved settings from the SavedSettings.txt as a List of objects. On index 0 should be a
/// string, on index 1 a bool value, on index 2 a TimeSpan and on index 3 Language enum. If
/// SavedSettings.txt has been tempered with returns null.
/// </summary>
/// <returns>List of objects holding the settings, or null if they can't be read.</returns>
private List <object> GetSavedSettings()
{
List <object> settings = new List <object>(4);
try
{
// Trying to read SavedSettings.txt, which should be in format:
// Line 1: "Last save location = xxx" where xxx is the full path to the saved Dictionary
// Line 2: "Open dictionary automatically = xxx" where xxx is either true or false
// Line 3: "Automatic save interval = xxx" where xxx is a TimeSpan
// Line 4: "Chosen language = xxx" where xxx is either English or Serbian
string[] lines = File.ReadAllLines("SavedSettings.txt");
if (lines.Length < 4)
{
// SavedSettings.txt has been changed
return(null);
}
string firstLine = lines[0];
string secondLine = lines[1];
string thirdLine = lines[2];
string fourthLine = lines[3];
string lastSaveLocation = string.Empty;
bool openAutomatically = false;
TimeSpan saveInterval = new TimeSpan(0, 0, 0);
LanguageViewModel.Language language = LanguageViewModel.Language.English;
try
{
firstLine = firstLine.Substring(32).Trim();
secondLine = secondLine.Substring(32).Trim();
thirdLine = thirdLine.Substring(32).Trim();
fourthLine = fourthLine.Substring(32).Trim();
lastSaveLocation = firstLine;
bool.TryParse(secondLine, out openAutomatically);
TimeSpan.TryParse(thirdLine, out saveInterval);
Enum.TryParse(fourthLine, out language);
}
catch (ArgumentOutOfRangeException)
{
// SavedSettings.txt has been changed
return(null);
}
settings.Add(lastSaveLocation);
settings.Add(openAutomatically);
settings.Add(saveInterval);
settings.Add(language);
}
catch (FileNotFoundException)
{
// SavedSettings.txt deleted
Debug.WriteLine("SavedSettings.txt file not found. Starting with default settings.");
return(null);
}
return(settings);
}
public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
string saveLocation = values[0] as string;
LanguageViewModel.Language language = (LanguageViewModel.Language)values[1];
string title = "German dictionary";
if (language == LanguageViewModel.Language.Serbian)
{
title = "Recnik nemackog jezika";
}
if (saveLocation != null)
{
string fileName = Path.GetFileNameWithoutExtension(saveLocation);
title += " - " + fileName;
}
return(title);
}
