public void MarkNode(TreeNode a_node)
{
if (a_node == null)
return;
Sprite sp = this.SpriteFromNode(a_node);
if (sp != null)
{
//check if there's already a marker on the sprite:
if (this._markedSprites.Contains(sp))
{
////yes, so remove it:
this._markedSprites.Remove(sp);
//TODO: it shouldn't be a behavior, but a plain child sprite. Easier to manage...
BhSpriteTransformer bhXform = (BhSpriteTransformer)sp.GetBehaviorByIndex(0);
bhXform.Dispose();
a_node.ForeColor = Color.Black;
}
else
{
//no; add a transformer:
BhSpriteTransformer bhXform = new BhSpriteTransformer();
sp.AddBehavior(bhXform);
bhXform.Init();
a_node.ForeColor = Color.Red;
this._markedSprites.Add(sp);
}
}
}