protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (!Focused)
{
Focus();
}
updateMouseInfo(e.Location);
if (e.Button == MouseButtons.Left)
{
if (highlightArrow != null)
{
highlightArrow.Expanded = !highlightArrow.Expanded;
Invalidate();
}
if (highlightNode != null)
{
SelectedNode = highlightNode;
}
}
DynamicTreeNode n = NodeAt(e.Location);
OnNodeMouseDown(new DynamicTreeNodeMouseEventArgs(n, e));
}
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
DynamicTreeNode n = NodeAt(e.Location);
OnNodeMouseUp(new DynamicTreeNodeMouseEventArgs(n, e));
}
protected override void OnMouseClick(MouseEventArgs e)
{
base.OnMouseClick(e);
lastClick = e;
DynamicTreeNode n = NodeAt(e.Location);
OnNodeMouseClick(new DynamicTreeNodeMouseEventArgs(n, e));
}
private void ValidateSelectedNode()
{
if (SelectedNode != null)
{
if (!Nodes.VisibleNodes.Contains(SelectedNode))
{
SelectedNode = null;
}
}
}
protected override void OnDoubleClick(EventArgs e)
{
base.OnDoubleClick(e);
if (lastClick == null)
{
return;
}
DynamicTreeNode n = NodeAt(lastClick.Location);
OnNodeMouseDoubleClick(new DynamicTreeNodeMouseEventArgs(n, lastClick));
}
public override bool HighlightWhenSelected(DynamicTreeNode n)
{
return(Link.HighlightWhenSelected(n));
}
public DynamicTreeLinkNode(DynamicTreeNodeCollection collection, DynamicTreeNode link)
: base(collection, null)
{
Link = link;
nodesCache = new DynamicTreeNodeCollection(View, this);
}
public virtual bool HighlightWhenSelected(DynamicTreeNode n)
{
return(ClientData.HighlightWhenSelected.Contains(n.ClientData));
}
private void ChangedDataChild(int index, IDynamicTreeNodeDataProxy d)
{
Nodes[index] = new DynamicTreeNode(Nodes, d);
}
public DynamicTreeNodeMouseEventArgs(DynamicTreeNode n, MouseEventArgs e)
: base(e.Button, e.Clicks, e.X, e.Y, e.Delta)
{
node = n;
}
public override bool HighlightWhenSelected(DynamicTreeNode n)
{
return Link.HighlightWhenSelected(n);
}
public virtual bool HighlightWhenSelected(DynamicTreeNode n)
{
return ClientData.HighlightWhenSelected.Contains(n.ClientData);
}
} //Gets or sets a root node for the view. Its nodes will be shown as the root's child nodes.
public void SetRoot(IDynamicTreeNodeDataProxy data)
{
Root = data != null ? new DynamicTreeNode(new DynamicTreeNodeCollection(this), data) : null;
}
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (e.KeyCode == Keys.Down)
{
if (SelectedNode == null)
{
if (Nodes.Count == 0)
{
return;
}
SelectedNode = Nodes.VisibleNodes.First();
return;
}
int index = Nodes.VisibleNodes.IndexOf(SelectedNode) + 1;
index = Math.Min(Nodes.VisibleNodes.Count - 1, index);
SelectedNode = Nodes.VisibleNodes[index];
}
else if (e.KeyCode == Keys.Up)
{
if (SelectedNode == null)
{
if (Nodes.Count == 0)
{
return;
}
SelectedNode = Nodes.VisibleNodes.Last();
return;
}
int index = Nodes.VisibleNodes.IndexOf(SelectedNode) - 1;
index = Math.Max(0, index);
SelectedNode = Nodes.VisibleNodes[index];
}
else if (e.KeyCode == Keys.Left)
{
if (SelectedNode != null && SelectedNode.Expanded)
{
SelectedNode.Expanded = false;
Invalidate();
}
}
else if (e.KeyCode == Keys.Right)
{
if (SelectedNode != null && !SelectedNode.Expanded)
{
SelectedNode.Expanded = true;
Invalidate();
}
}
else if (e.KeyCode == Keys.Home)
{
SelectedNode = Nodes.VisibleNodes.First();
}
else if (e.KeyCode == Keys.End)
{
SelectedNode = Nodes.VisibleNodes.Last();
}
else if (e.KeyCode == Keys.PageDown)
{
if (SelectedNode == null)
{
SelectedNode = Nodes.VisibleNodes.First();
return;
}
int index = Nodes.VisibleNodes.IndexOf(SelectedNode) + 10;
index = Math.Min(Nodes.VisibleNodes.Count - 1, index);
SelectedNode = Nodes.VisibleNodes[index];
}
else if (e.KeyCode == Keys.PageUp)
{
if (SelectedNode == null)
{
SelectedNode = Nodes.VisibleNodes.Last();
return;
}
int index = Nodes.VisibleNodes.IndexOf(SelectedNode) - 10;
index = Math.Max(0, index);
SelectedNode = Nodes.VisibleNodes[index];
}
/*
* if (e.KeyCode == Keys.F)
* {
* if (ArrowRenderStyle == DynamicTreeViewRenderStyle.Native)
* {
* ArrowRenderStyle = DynamicTreeViewRenderStyle.FakeNative;
* SelectionRenderStyle = DynamicTreeViewRenderStyle.FakeNative;
* }
* else
* {
* ArrowRenderStyle = DynamicTreeViewRenderStyle.Native;
* SelectionRenderStyle = DynamicTreeViewRenderStyle.Native;
* }
* Invalidate();
* }*/
}
public DynamicTreeNodeMouseEventArgs(DynamicTreeNode n, MouseEventArgs e)
: base(e.Button, e.Clicks, e.X, e.Y, e.Delta)
{
node = n;
}
private void ChangedDataChild(int index, IDynamicTreeNodeDataProxy d)
{
Nodes[index] = new DynamicTreeNode(Nodes, d);
}
public DynamicTreeLinkNode(DynamicTreeNodeCollection collection, DynamicTreeNode link)
: base(collection, null)
{
Link = link;
nodesCache = new DynamicTreeNodeCollection(View, this);
}