public AppData()
{
var source = new ConversionItemViewModel(UnitFactory.UnitFromName(Settings.LastUnitSource, Settings.LastCategory));
source.Value = Settings.LastUnitSourceValue;
var destination = new ConversionItemViewModel(UnitFactory.UnitFromName(Settings.LastUnitDestination, Settings.LastCategory));
CurrentConversion = new SimpleConvertViewModel(Settings.LastCategory,source, destination);
}
public SimpleConvertViewModel(UnitCategory category, ConversionItemViewModel sourceUnit, ConversionItemViewModel destinationUnit)
{
_currentCategory = category;
// get default source if it doesn't exist
if ((sourceUnit == null) || (destinationUnit == null))
{
SetDefaultUnits(category);
}
else
{
if ((sourceUnit.ConversionUnit == null || destinationUnit.ConversionUnit == null))
SetDefaultUnits(category);
else
{
this.SourceUnit = sourceUnit;
this.DestinationUnit = destinationUnit;
UserInputValue = sourceUnit.Value.ToString();
}
// TextInputValue = "0";
}
PopulateConversionList(_currentCategory);
DigitPressedCommand = new Command<string>(ProcessDigit);
ClearCommand = new Command(ProcessClear);
EditAvailableItemsCommand = new Command(EditAvailableItems);
CollapseKeyboardCommand = new Command(CollapseKeyboard);
BackspaceCommand = new Command(ProcessBackspace);
InformationCommand = new Command(ShowInformation);
NegateCommand = new Command(NegateEntry);
SwapValuesCommand = new Command(SwapValues);
ChangeSourceUnitCommand = new Command(ChangeSourceUnit);
ChangeDestinationUnitCommand = new Command(ChangeDestinationUnit);
// IncrementDecimalPlacesCommand = new Command(IncrementDecimalPlaces);
// DecrementDecimalPlacesCommand = new Command(DecrementDecimalPlaces);
IsKeyaboardVisible = true;
}
private void UpdateSelectedUnit()
{
if (availableUnitList.SelectedItem == null)
return;
ConversionItemSelectionViewModel item = availableUnitList.SelectedItem as ConversionItemSelectionViewModel;
AppData data = ((App)Application.Current).AppData;
ConversionItemViewModel newItem = new ConversionItemViewModel(item.ConversionUnit);
if (_isDestination)
{
data.CurrentConversion.DestinationUnit = newItem;
newItem.ApplyConversion(data.CurrentConversion.SourceUnit);
}
else
{
var value = data.CurrentConversion.SourceUnit.Value;
data.CurrentConversion.SourceUnit = newItem;
data.CurrentConversion.SourceUnit.Value = value;
data.CurrentConversion.DestinationUnit.ApplyConversion(data.CurrentConversion.SourceUnit);
}
}
public void ApplyConversion(ConversionItemViewModel fromUnit)
{
// convert to unit
var convResult = ConversionEngine.ConvertUnit(fromUnit.ConversionUnit, this.ConversionUnit, fromUnit.Value);
this.Value = convResult;
}