/// <summary>
/// Gets the color alpha part depending on the type of rendering and the node
/// </summary>
/// <param name="oNode">Node to get the alpha</param>
/// <returns>Alpha part of the color</returns>
internal int GetNodeAlpha(Node oNode)
{
int nAlpha = 255;
if (oNode.GetHighlightSelectedPath() == false)
return nAlpha;
if (IsDesignMode == true)
return nAlpha;
if (m_bFocus == false)
{
if (oNode.IsInSelectedPath() == false)
return nAlpha = 100;
if (SelectedNode == null)
nAlpha = 100;
}
return nAlpha;
}
/// <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();
}
}