/// <summary>
/// adds children to newly created clones
/// </summary>
/// <param name="menu">menu that has children to be coppied from</param>
private void addChildOf(TreeMenu menu)
{
if (menu.child == null)
{
return;
}
child = new TreeMenu(SquareList.createSquareList(menu.child.children));
child.addChildOf(menu.child);
}
/// <summary>
/// removes subtrees after the keeping children has passed
/// </summary>
/// <param name="keeping">number of children to keep</param>
/// <param name="parentCanvas">canvas to remove from</param>
private void KeepChildren(int keeping, Canvas parentCanvas)
{
if (keeping > 0)
{
child.KeepChildren(keeping - 1, this.canvas);
if (keeping == 1)
{
child = null;
}
return;
}
else
{
if (child != null)
{
child.KeepChildren(-1, this.canvas);
child = null;
}
parentCanvas.Children.Remove(this.canvas);
return;
}
}
/// <summary>
/// Only to be used in the public addchild
/// this is to ensure the breadcrumbs and parentlist is presevered
/// </summary>
/// <param name="grandChildren"></param>
/// <returns></returns>
private TreeMenu addChild(SquareList grandChildren)
{
if (child == null)
{
child = new TreeMenu(grandChildren);
canvas.Children.Add(child.DrawMenu());
return child;
}
else
{
TreeMenu gchild = child.addChild(grandChildren);
return gchild;
}
}
public void Delete()
{
if (!InHistory)
{/*Deleting already deleted block*/
foreach (Square block in children)
{
block.Delete();
}
breadCrumbs.Clear();
breadCrumbs = null;
if (child != null)
{
child.Delete();
}
child = null;
canvas = null;
myTimer.Stop();
myTimer = null;
return;
}
InHistory = false;
}
/// <summary>
/// create a new tree menu based on
/// this treeMenu
/// </summary>
/// <returns></returns>
public TreeMenu Clone()
{
TreeMenu newmenu = new TreeMenu(children, breadCrumbs, ParentList);
newmenu.addChildOf(this);
return newmenu;
}
/// <summary>
/// Adds a child to the menu if the menu has a child a
/// recursively trys to add the child until a leaf menu is found
/// </summary>
/// <param name="grandChildren">list used to populate the menu</param>
/// <param name="creator">square that wants to create a treemenu</param>
/// <returns></returns>
public TreeMenu addChild(SquareList grandChildren, Square creator)
{
CreateCrumb(creator);
TreeMenu NewChild;
if (child == null)
{
child = NewChild = new TreeMenu(grandChildren);
canvas.Children.Add(child.DrawMenu());
child.ReDraw(width, height);
}
else
{
NewChild = child.addChild(grandChildren);
NewChild.ReDraw(width, height);
}
NotifyChange("Source");
NotifyChange("Name");
return NewChild;
}
/// <summary>
/// Creates a treeMap and places it in a scatterview item in the scatterview scatter
/// the treemap will be facing the user
/// </summary>
/// <param name="fileName">the path to follow to the xml document to read</param>
/// <param name="caller">the square linked with the button that made the event</param>
/// <param name="angle">angle of the finger that raised the event</param>
/// <param name="parent">the location of the button that raised the event</param>
public void PlaceTreeMap(String fileName, Square caller, double angle, Point parent)
{
TreeMenu map = new TreeMenu(Catagory.ReadFile( fileName), caller, MenuList);
map.AddUpListenerToButtons(TouchUpMenu);
ScatterViewItem item = new ScatterViewItem();
item.Center = findPosition(parent, angle);
item.Orientation = angle + 90;
item.MinHeight = MinHeightItem;
item.MinWidth = MinWidthItem;
item.MaxHeight = MaxHeightItem;
item.MaxWidth = MaxWidthItem;
item.ContainerManipulationDelta += new ContainerManipulationDeltaEventHandler(OnManipulation);
item.ContainerManipulationCompleted += new ContainerManipulationCompletedEventHandler(AfterManipulationCompleted);
item.Width = treeWidth;
item.Height = treeHeight;
item.Content = map.DrawMenu();
item.ClipToBounds = false;
scatter.Items.Add(item);
MenuList.Add(map);
((IndividualMenu)FindTheMenu(caller.Button)).AddToHistory(map);
}
