public void Add(Term addition)
{
if (topLayer is AddSubtractLayer) ((AddSubtractLayer)topLayer).Additions.Add(addition.TopLayer);
else
{
AddSubtractLayer newTopLayer = new AddSubtractLayer();
newTopLayer.Additions.Add(topLayer);
newTopLayer.Additions.Add(addition.TopLayer);
topLayer = Layer.GetBetterChild(newTopLayer);
}
}
private void AddFirstToLayerAndDeleteFromList(AddSubtractLayer layer, List<IElement> els)
{
bool isAddition = true;
if (els[0] is MinusElement) isAddition = false;
if (els[0] is PlusElement || els[0] is MinusElement) els.RemoveAt(0);
int length = GetFirstIndexOrCount(els, typeof(PlusElement), typeof(MinusElement));
ElementsToLayersParser parser = new ElementsToLayersParser(els.GetRange(0, length));
parser.Parse();
if (isAddition) layer.Additions.Add(parser.TopLayer);
if (!isAddition) layer.Subtractions.Add(parser.TopLayer);
els.RemoveRange(0, length);
}
private AddSubtractLayer ParseAddSubtractLayerFromElements()
{
AddSubtractLayer layer = new AddSubtractLayer();
List<IElement> els = new List<IElement>(elements);
while (els.Count > 0)
AddFirstToLayerAndDeleteFromList(layer, els);
return layer;
}
private AddSubtractLayer CreateNonCombinedLayerPart(ILayer[] pair, MultiplyDivideLayer[] parents)
{
AddSubtractLayer layerPart = new AddSubtractLayer();
MultiplyDivideLayer layer0 = Layer.GetMultiplyDivideLayerWithoutOne(parents[0], pair[0]);
if (additions.Contains(parents[0])) layerPart.Additions.Add(layer0);
else layerPart.Subtractions.Add(layer0);
MultiplyDivideLayer layer1 = Layer.GetMultiplyDivideLayerWithoutOne(parents[1], pair[1]);
if (additions.Contains(parents[1])) layerPart.Additions.Add(layer1);
else layerPart.Subtractions.Add(layer1);
return layerPart;
}
