private void SetViewCell(TModel model, TView view, IWriteableArray <TViewItem> array, int[] arrayIndexes, TModelItem newModelItem)
{
TViewItem oldViewItem = array[arrayIndexes];
_viewItemDisposer?.Invoke(oldViewItem);
array[arrayIndexes] = _itemConverter(model, newModelItem, view, oldViewItem);
}
static public void Fill <T>(this IWriteableArray <T> array, T value, IEnumerable <int[]> indexes = null)
{
IEnumerable <int[]> indexEnumerable = indexes ?? array.Indexes();
foreach (int[] index in indexEnumerable)
{
array[index] = value;
}
}
static public void Fill <T>(this IWriteableArray <T> array, Func <T, int[], T> valueFactory, IEnumerable <int[]> indexes = null)
{
IEnumerable <int[]> indexEnumerable = indexes ?? array.Indexes();
foreach (int[] index in indexEnumerable)
{
array[index] = valueFactory(array[index], index);
}
}
private void SetViewCells(TModel model, TView view, IndexRange indexRange, System.Array newValues)
{
IWriteableArray <TViewItem> array = _arrayGetter(view);
int[] arrayIndexes = indexRange.GetResetIndex();
int[] newValueIndexes = newValues.GetResetIndex();
while (newValues.MoveIndex(newValueIndexes))
{
if (!indexRange.MoveIndex(arrayIndexes))
{
throw new InvalidOperationException();
}
var newModelItem = (TModelItem)newValues.GetValue(newValueIndexes);
SetViewCell(model, view, array, arrayIndexes, newModelItem);
}
if (indexRange.MoveIndex(arrayIndexes))
{
throw new InvalidOperationException();
}
}
static public IWriteableArray <TNewValue> Retype <TOldValue, TNewValue>(this IWriteableArray <TOldValue> array, Func <TOldValue, TNewValue> getter, Action <TOldValue, TNewValue> setter)
{
return(new RetypedWriteableArray <TOldValue, TNewValue>(array, getter, setter));
}
