/// <summary>
/// Constructor
/// </summary>
/// <param name="_page">WorldclockPage</param>
public WorldclockInfo(WorldclockPage _page)
{
CityRecordList = new ObservableCollection <CityRecord>();
userLocations = new LocationObservableCollection();
page = _page;
LoadItemsList();
TimezoneUtility.UpdateLocalTime();
}
/// <summary>
/// Saves a list of cities which an user chooses
/// </summary>
/// <param name="user_location">a list of cities</param>
public void Save(LocationObservableCollection user_location)
{
if (Native.Preference.Contains("DOTNET_WORLDCLOCK_LIST_SIZE") || Native.Preference.Contains("DOTNET_WORLDCLOCK_MAP_CURRENT_TIMEZONE"))
{
Native.Preference.RemoveAll();
}
if (user_location.Count != 0)
{
Native.Preference.Set("DOTNET_WORLDCLOCK_LIST_SIZE", user_location.Count);
int no = 0;
foreach (Location l in user_location)
{
SaveItem(l, no++);
}
user_location.Clear();
}
}
/// <summary>
/// Loads a list of cities
/// </summary>
/// <param name="user_location">a list of cities which an user selected before</param>
/// It's passed by reference
public void Load(ref LocationObservableCollection user_location)
{
int listSize;
bool existing = Native.Preference.Contains("DOTNET_WORLDCLOCK_LIST_SIZE");
if (!existing)
{
return;
}
listSize = Native.Preference.Get <int>("DOTNET_WORLDCLOCK_LIST_SIZE");
if (user_location.Count != 0)
{
return;
}
for (int i = 0; i < listSize; i++)
{
Location l = LoadItem(i);
user_location.Add(l);
}
}
