public void GetOrders()
{
if (m_budget == 0 || m_allOrders == null)
{
return;
}
int length = m_allOrders.Count;
if (length == 0)
{
return;
}
double total = m_allOrders.Total;
if (total <= m_budget)
{
m_orders = new List <OrderList> {
m_allOrders
};
return;
}
m_allOrders.Sort(new OrderItemComparator());
int index = 0;
m_orders = new List <OrderList>();
Int16 estimatedListCount = (Int16)Math.Ceiling(total / m_budget);
int offset = 0;
while (index < estimatedListCount)
{
m_orders.Add(new OrderList(m_budget));
index++;
}
index = 0;
OrderItem item = null;
bool moveForward = true;
int listTriedPerItem = 0;
while (index < length && listTriedPerItem < estimatedListCount)
{
int currentListIndex = (index + offset) % estimatedListCount;
if (moveForward)
{
item = m_allOrders[index];
listTriedPerItem = 0;
}
moveForward = true;
if (item != null && item.Price > 0)
{
OrderList currentList = m_orders[currentListIndex];
double listTotal = currentList.Total;
if (listTotal < m_budget)
{
double space = m_budget - listTotal;
if (item.Total <= space)
{
currentList.Add(item);
item = null;//if quantity are consumed, set variable to null
}
else
{
Int16 quantityFitCurrentList = (Int16)Math.Floor(space / item.Price);
if (quantityFitCurrentList > 0)
{
currentList.Add(new OrderItem(quantityFitCurrentList, item.Product));
item = new OrderItem((Int16)(item.Quantity - quantityFitCurrentList), item.Product);
}
}
}
if (item != null)
{
listTriedPerItem++;
offset++;
moveForward = false;
}
}
if (moveForward)
{
index++;
}
}
if (item != null)
{
if (index >= length)
{
OrderList list = new OrderList();
m_orders.Add(list);
list.Add(item);
}
else
{
OrderList list = new OrderList();
m_orders.Add(list);
while (index < length)
{
list.Add(m_allOrders[index++]);
}
}
}
}
public bool Print()
{
if (m_orders == null)
{
return(false);
}
int length = m_orders.Count;
if (length == 0)
{
return(false);
}
XmlDocument document = new XmlDocument();
XmlNode root = document.AppendChild(document.CreateElement("orders"));
if (root == null)
{
return(false);
}
int index = 0;
while (index < length)
{
OrderList list = m_orders[index++];
if (list == null)
{
continue;
}
XmlNode order = root.AppendChild(document.CreateElement("order"));
if (order == null)
{
return(false);
}
XmlNode total = order.AppendChild(document.CreateElement("total"));
if (total == null)
{
return(false);
}
total.InnerText = Convert.ToString(list.Total);
using (XmlWriter writer = order.CreateNavigator().AppendChild())
{
list.Print(order);
}
}
SaveFileDialog dialog = new SaveFileDialog
{
Filter = "Microsoft Word Document (*.doc)|*.doc",
FilterIndex = 2,
RestoreDirectory = true
};
if (dialog.ShowDialog() == DialogResult.OK)
{
using (Stream stream = dialog.OpenFile())
{
if (stream == null)
{
return(false);
}
XslCompiledTransform transform = new XslCompiledTransform();
transform.Load("Resources/GenerateWordDocument.xsl");
transform.Transform(document, null, stream);
}
return(true);
}
return(false);
}