public ValueContainer Evaluate(IValueEnvironment env)
{
//TODO: Make it so no casting is needed
DictionaryKeyValueObserver<string, ValueContainer> repeatVariables = ((Environment.ValueEnvironment)env).GetRange(Name);
ValueContainer value = new ValueContainer(0);
Action onValueChanged = () =>
{
int count = 0;
double sum = 0;
foreach (ValueContainer item in repeatVariables.Where(v => !v.Inactive))
{
count++;
sum += Convert.ToDouble(item.Value);
}
value.Value = count > 0 ? sum / count : 0;
};
Action onCollectionChange = () =>
{
foreach (ValueContainer item in repeatVariables)
{
item.ValueChanged += onValueChanged;
}
onValueChanged();
};
repeatVariables.FilterResultChanged += onCollectionChange;
onCollectionChange();
return value;
}
public FrameworkElement BuildElement(ValueContainer value, bool editable)
{
FrameworkElement elem = BuildElement(value);
elem.IsEnabled = editable;
elem.IsVisibleChanged += (s, e) =>
{
value.Inactive = !elem.IsVisible;
};
return elem;
}
protected override FrameworkElement BuildElement(ValueContainer value)
{
TextBox tb = new TextBox() { Width = 200 };
tb.TextChanged += (s, e) =>
{
value.Value = tb.Text;
};
Action onValueChanged = () =>
{
tb.Text = Convert.ToString(value.Value);
};
value.ValueChanged += onValueChanged;
onValueChanged();
return tb;
}
protected override FrameworkElement BuildElement(ValueContainer value)
{
IntegerUpDown iud = new IntegerUpDown() { Width = 200 };
iud.ValueChanged += (s, e) =>
{
value.Value = iud.Value;
};
Action onValueChanged = () =>
{
iud.Value = Convert.ToInt32(value.Value);
};
value.ValueChanged += onValueChanged;
onValueChanged();
return iud;
}
protected override FrameworkElement BuildElement(ValueContainer value)
{
DoubleUpDown dud = new DoubleUpDown() { Width = 200, Increment = 0.1 };
dud.ValueChanged += (s, e) =>
{
value.Value = dud.Value;
};
Action onValueChanged = () =>
{
dud.Value = Convert.ToDouble(value.Value);
};
value.ValueChanged += onValueChanged;
onValueChanged();
return dud;
}
protected override FrameworkElement BuildElement(ValueContainer value)
{
DatePicker dp = new DatePicker() { Width = 200 };
dp.SelectedDateChanged += (s, e) =>
{
value.Value = dp.SelectedDate;
};
Action onValueChanged = () =>
{
dp.SelectedDate = Convert.ToDateTime(value.Value);
};
value.ValueChanged += onValueChanged;
onValueChanged();
return dp;
}
protected override FrameworkElement BuildElement(ValueContainer value)
{
CheckBox cb = new CheckBox();
cb.Checked += (s, e) =>
{
value.Value = true;
};
cb.Unchecked += (s, e) =>
{
value.Value = false;
};
Action onValueChanged = () =>
{
cb.IsChecked = Convert.ToBoolean(value.Value);
};
value.ValueChanged += onValueChanged;
onValueChanged();
return cb;
}
protected override object Evaluate(ValueContainer expr1Value, ValueContainer expr2Value)
{
return Math.Pow(Convert.ToDouble(expr1Value.Value), Convert.ToDouble(expr2Value.Value));
}
protected override object Evaluate(ValueContainer expr1Value, ValueContainer expr2Value)
{
return Convert.ToDouble(expr1Value.Value) % Convert.ToDouble(expr2Value.Value);
}
protected override object Evaluate(ValueContainer expr1Value, ValueContainer expr2Value)
{
return expr1Value.Value.Equals(expr2Value.Value);
}
protected virtual FrameworkElement BuildElement(ValueContainer value)
{
return null;
}
protected override object Evaluate(ValueContainer expr1Value, ValueContainer expr2Value)
{
return Convert.ToBoolean(expr1Value.Value) || Convert.ToBoolean(expr2Value.Value);
}
