/// <summary>
/// Refresh tree control
/// </summary>
public void RefreshTree()
{
//Auto enable scroll for new content size
_ltd = new LayeredTreeDraw(m_RootNode, 17.5, 17.5, 17.5, VerticalJustification.top);
_ltd.LayoutTree();
this.AutoScrollMinSize = new Size((int)_ltd.PxOverallWidth + this.Margin.Left + this.Margin.Right, (int)_ltd.PxOverallHeight + this.Margin.Top + this.Margin.Bottom);
Invalidate();
}
/// <summary>
/// Prepare for Tree node draw.
/// </summary>
/// <param name="gpRoot"></param>
/// <param name="funNodeValue">delegate for callbaack for retrieve GPNode string representation</param>
public void DrawTreeExpression(GPNode gpRoot, NodeValue funNodeValue, NodeBackground funNodeBackground = null)
{
Clear();
//define callbacks for
_funNodeValueCallback = funNodeValue;
_funNodeBackgroundCallback = funNodeBackground;
//Collection holds tree nodes
Queue <GPNode> dataTree = new Queue <GPNode>();
Queue <TreeNodeDrawer> ctrls = new Queue <TreeNodeDrawer>();
//current node
GPNode node = null;
TreeNodeDrawer treeCtrl = null;
treeCtrl = AddNode(gpRoot.value, gpRoot.marked, null);
ctrls.Enqueue(treeCtrl);
dataTree.Enqueue(gpRoot);
while (dataTree.Count > 0)
{
//get next node
node = dataTree.Dequeue();
treeCtrl = ctrls.Dequeue();
if (node.children != null)
{
for (int i = 0; i < node.children.Length; i++)
{
var tn = AddNode(node.children[i].value, node.children[i].marked, treeCtrl);
dataTree.Enqueue(node.children[i]);
ctrls.Enqueue(tn);
}
}
}
_ltd = new LayeredTreeDraw(m_RootNode, 17.5, 17.5, 17.5, VerticalJustification.top);
_ltd.LayoutTree();
//Auto enable scroll for new content size
this.AutoScrollMinSize = new Size((int)_ltd.PxOverallWidth + this.Margin.Left + this.Margin.Right, (int)_ltd.PxOverallHeight + this.Margin.Top + this.Margin.Bottom);
Invalidate();
}