// Bubble sort the given linked list
public Node BubbleSort()
{
int swapped;
Node ptr1;
Node lptr = null;
// Checking for empty list
if (head == null)
{
return(null);
}
do
{
swapped = 0;
ptr1 = head;
while (ptr1.Next != lptr)
{
if (Double.Parse(ptr1.Data.Decimal) > Double.Parse(ptr1.Next.Data.Decimal))
{
DeweyDecimal t = ptr1.Data;
ptr1.Data = ptr1.Next.Data;
ptr1.Next.Data = t;
swapped = 1;
}
ptr1 = ptr1.Next;
}
lptr = ptr1;
}while (swapped != 0);
return(head);
}
//Create File
private void mnuNewFile_Click(object sender, EventArgs e)
{
using (SaveFileDialog dlg = new SaveFileDialog())
{
dlg.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
dlg.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
dlg.Title = "New FIle";
if (dlg.ShowDialog() == DialogResult.OK)
{
ExtensionMethods.storagePath = dlg.FileName;
spaces = spaces.ReadFromDataStore(ExtensionMethods.storagePath);
DeweyDecimal.Classification = DeweyDecimal.ReadToClassfication();
gbVirtualSotrageSpaces.Visible = true;
gbEbooks.Visible = true;
gbBookInfo.Visible = true;
gbBookDetails.Visible = true;
gbVirtualStorageSpaceInfo.Visible = true;
mnuImportEbooks.Enabled = true;
PopulateStorageSpaceList();
}
}
}
// Checks if the item exists in the list
public bool Contains(DeweyDecimal value)
{
Node current = head;
while (current != null)
{
if (current.Data == value)
{
return(true);
}
current = current.Next;
}
return(false);
}
public void AddFirst(DeweyDecimal data)
{
Node newNode = new Node(data);
if (head == null)
{
tail = newNode;
}
else
{
head.Previous = newNode;
}
head = newNode;
Length++;
}
// Finds the last node that contains the specified value
public Node FindLast(DeweyDecimal value)
{
Node current = tail;
while (current != null)
{
if (current.Data == value)
{
return(current);
}
current = current.Previous;
}
return(null);
}
// Finds the node that contains the specified value
public Node Find(DeweyDecimal value)
{
Node current = head;
while (current != null)
{
if (current.Data == value)
{
return(current);
}
current = current.Next;
}
return(null);
}
// AKA addLast
public void Add(DeweyDecimal data)
{
Node newNode = new Node(data);
if (tail == null)
{
head = newNode;
}
else
{
// Connect the final node
newNode.Previous = tail;
tail.Next = newNode;
}
// Set the new tail
tail = newNode;
Length++;
}
public bool Remove(DeweyDecimal value)
{
Node current = head;
while (current != null)
{
if (current.Data == value)
{
// End of the list
if (current.Next == null)
{
// Remove the last item in the list
tail = current.Previous;
}
else
{
current.Next.Previous = current.Previous;
}
// Start of the list
if (current.Previous == null)
{
head = current.Next;
}
else
{
// Tie the nodes together
current.Previous.Next = current.Next;
}
current = null;
Length--;
return(true);
}
current = current.Next;
}
return(false);
}
public Node(DeweyDecimal data)
{
Data = data;
}
public ImportBooks()
{
InitializeComponent();
spaces = spaces.ReadFromDataStore(storagePath);
DeweyDecimal.Classification = DeweyDecimal.ReadToClassfication();
}