void OnNodeExpanded(Node n)
{
int size = n.VisibleSubtreeSize;
RowsInserted(IndexOf(n) + 1, size);
rows += size;
}
void RenderColumnHeader(IColumn c, Painter p, Node n)
{
p.SetPosition(c.Left);
if (c.Left > 0)
p.DrawSeparatorLine(Pens.Black);
p.Pad(4);
p.DrawString(c.Name, Font, Brushes.Black, 3, c.Left + c.Width);
}
void PaintExpander(Rectangle bounds, Node n)
{
if (n.IsLeaf)
return;
Image image = provider.GetImage(n.Expanded ? "collapse" : "expand");
g.DrawImage(image, bounds.Left + bounds.Height * (n.Depth - 1), bounds.Top);
}
public int IndexOf(Node n)
{
int i = 0;
foreach (Node a in VisibleNodes)
if (a == n)
return i;
else
++i;
return -1;
}
bool IsDescendentOf(Node n)
{
Node t = this;
while (t != null)
if (t == n)
return true;
else
t = t.parent;
return false;
}
public void RenderCustom(Painter p, Node n, Action<IColumn, Painter, Node> a)
{
foreach (IColumn c in columns)
a(c, p, n);
}
public void Render(Painter p, Node n)
{
foreach (IColumn c in columns)
c.Render(p, n);
}
public void PaintItem(Node n, Rectangle bounds, bool selected)
{
PaintBackground(bounds, selected);
PaintExpander(bounds, n);
}
void OnNodeAdded(Node n)
{
rows += 1 + n.VisibleSubtreeSize;
}
public void Remove(Node node)
{
if (node == null)
throw new ArgumentNullException("Cannot remove null child");
if (!children.Remove(node))
throw new ArgumentException("The node does not contain this child");
node.parent = null;
RootNode root = Root as RootNode;
if (root != null)
root.NotifyNodeRemoved(node);
}
public bool Contains(Node node)
{
return children.Contains(node);
}
internal void NotifyNodeRemoved(Node n) { NodeRemoved(n); }
internal void NotifyNodeAdded(Node n) { NodeAdded(n); }
internal void NotifyNodeCollapsed(Node n) { NodeCollapsed(n); }
internal void NotifyNodeExpanded(Node n) { NodeExpanded(n); }
void OnNodeCollapsed(Node n)
{
int size = n.VisibleSubtreeSize;
rows -= size;
RowsRemoved(IndexOf(n) + 1, size);
}
void OnNodeRemoved(Node n)
{
rows -= 1 + n.VisibleSubtreeSize;
}
public void Add(Node child)
{
if (child == null)
throw new ArgumentNullException("Cannot add null child");
if (children.Contains(child))
throw new ArgumentException("The node already contains this child");
if (child.parent != null)
throw new InvalidOperationException("The child already has a parent");
if (this.IsDescendentOf(child))
throw new InvalidOperationException("Cannot create cycle");
children.Add(child);
child.parent = this;
RootNode root = Root as RootNode;
if (root != null)
root.NotifyNodeAdded(child);
}
public Node CreateView()
{
Node<CallerFunction> n = new Node<CallerFunction>(this);
n.Collapse();
foreach (CallerFunction f in callers.Values)
n.Add(f.CreateView());
return n;
}
public void Render(Painter p, Node n)
{
a(this, p, n);
}
