// Adds to balance and creates a ledger of the transaction
// by checking whether there's room in history[] and making more if needed
// then changing balance, creating the ledger entry and increasing historyCount
public void NewTransaction(double change, string note)
{
if(!(historyCount < historyCap))
{
AddHistory(historyCap);
}
balance += change;
history[historyCount] = new Ledger(DateTime.Now, change, balance, note);
historyCount++;
}
// Doubles capacity of history[] and size of historyCap
// by creating a newHistory[] and copying the old entries into it
public void AddHistory(int cap)
{
int newCap = cap * 2;
Ledger[] newHistory = new Ledger[newCap];
for(int i = 0; i < cap; i++)
{
newHistory[i] = history[i];
}
history = newHistory;
historyCap = newCap;
}
public void SetHistory(int id, Ledger _ledger)
{
history[id] = _ledger;
}