/// <summary>
/// Paint the node's lines
/// </summary>
private void PaintNodeLines(Node oNode, Graphics oGraphics, int nX, int nY, Hashtable mapItemBoxToRect, Hashtable m_mapSubItemToRect)
{
if (oNode.GetShowLines() == true && oNode.Parent != null)
{
int nAlpha = oNode.TreeView.GetNodeAlpha(oNode);
int nNXAdd = 0;
//if (oNode.GetShowPlusMinus() == false)
// nNXAdd = -1;
if (oNode.GetTreeView().Style.ShowPlusMinus && oNode.ShowPlusMinus == false)
nNXAdd = 0;
if (oNode.IndentLevel != 0)
nNXAdd -= m_oTreeView.Style.NodeSpaceHorizontal;
Pen oPen = null;
if (oNode.Flash == true)
nAlpha = 255;
oPen = new Pen(Color.FromArgb(nAlpha, oNode.GetLineColor()), 1);
oPen.DashStyle = TreeView.GetLineStyle(oNode.GetLineStyle());
if (oNode.m_nCollectionOrder != 0 && oNode.Flash == false && oNode.IsInSelectedPath() == false)
{
Node oPrevNode = null;
foreach (Node oTestNode in oNode.Collection)
{
if (oTestNode.m_nCollectionOrder == oNode.m_nCollectionOrder - 1)
{
oPrevNode = oTestNode;
break;
}
}
if (oPrevNode != null)
{
// prev node rect
object oRect = mapItemBoxToRect[oPrevNode];
if (oNode.GetTreeView().Sorted == false)
oRect = mapItemBoxToRect[oNode.Parent];
if (oRect != null)
{
Rectangle oParentRect = (Rectangle)oRect;
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, nY + 7, nX - 14 + nNXAdd + m_oTreeView.Style.NodeSpaceHorizontal, nY + 7);
if (oNode.GetTreeView().Sorted == true)
oParentRect.Y -= 6;
if ((oNode.IsInSelectedPath() && oNode.GetHighlightSelectedPath() == true) || oNode.IsLastInCollection() || oNode.GetTreeView().Sorted == true)
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, oParentRect.Y + 13, nX - 19 + nNXAdd, nY + 7);
}
}
else
{
// parent rect
object oRect = mapItemBoxToRect[oNode.Parent];
if (oRect != null)
{
Rectangle oParentRect = (Rectangle)oRect;
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, nY + 7, nX - 14 + nNXAdd + m_oTreeView.Style.NodeSpaceHorizontal, nY + 7);
if ((oNode.IsInSelectedPath() && oNode.GetHighlightSelectedPath() == true) || oNode.IsLastInCollection() || oNode.GetTreeView().Sorted == true)
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, oParentRect.Y + 13, nX - 19 + nNXAdd, nY + 7);
}
}
}
else
{
// parent rect
object oRect = mapItemBoxToRect[oNode.Parent];
if (oRect != null)
{
Rectangle oParentRect = (Rectangle)oRect;
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, nY + 7, nX - 14 + nNXAdd + m_oTreeView.Style.NodeSpaceHorizontal, nY + 7);
if (oNode.GetShowPlusMinus() == false)
{
oRect = m_mapSubItemToRect[oNode.Parent];
if (oRect == null)
{
if ((oNode.IsInSelectedPath() && oNode.GetHighlightSelectedPath() == true) || oNode.IsLastInCollection() || oNode.GetTreeView().Sorted == true)
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, oParentRect.Y + 13, nX - 19 + nNXAdd, nY + 7);
}
else
{
oParentRect = (Rectangle)oRect;
if ((oNode.IsInSelectedPath() && oNode.GetHighlightSelectedPath() == true) || oNode.IsLastInCollection() || oNode.GetTreeView().Sorted == true)
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, oParentRect.Y + 13, nX - 19 + nNXAdd, nY + 7);
}
}
else
{
if ((oNode.IsInSelectedPath() && oNode.GetHighlightSelectedPath() == true) || oNode.IsLastInCollection() || oNode.GetTreeView().Sorted == true)
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, oParentRect.Y + 13, nX - 19 + nNXAdd, nY + 7);
}
}
}
oPen.Dispose();
}
}
/// <summary>
/// Paints the line from the node to its parent
/// </summary>
/// <param name="oNode"></param>
/// <param name="oGraphics"></param>
private void PaintNodeFlashLine(Node oNode, Graphics oGraphics)
{
if (oNode.Parent == null)
return;
int nNXAdd = 0;
//if (oNode.GetShowPlusMinus() == false)
// nNXAdd = -1;
Pen oPen = null;
int nAlpha = 255;
oPen = new Pen(Color.FromArgb(nAlpha, oNode.GetLineColor()), 1);
oPen.DashStyle = TreeView.GetLineStyle(oNode.GetLineStyle());
Rectangle nodeRect = m_oTreeView.GetExpandBoxRect(oNode);
Rectangle parentRect = m_oTreeView.GetExpandBoxRect(oNode.Parent);
int nX = nodeRect.Right + 2;
int nY = nodeRect.Top - 2;
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, nY + 7, nX - 14 + nNXAdd, nY + 7);
oGraphics.DrawLine(oPen, nX - 19 + nNXAdd, parentRect.Y + 12, nX - 19 + nNXAdd, nY + 7);
if (oNode.Parent.Parent != null)
PaintNodeFlashLine(oNode.Parent, oGraphics);
}