protected virtual void OnGetNodeColors(GetNodeColorsEventArgs e)
{
EventHandler<GetNodeColorsEventArgs> handler = base.Events[EventGetNodeColors] as EventHandler<GetNodeColorsEventArgs>;
if (handler != null)
{
handler(this, e);
}
}
private void WmCustomDraw(ref Message m)
{
TreeNode node;
TreeNodeStates itemState;
switch (Microsoft.Win32.NMCUSTOMDRAW.GetDrawStage(m.LParam))
{
case CDDS.CDDS_ITEMPREPAINT:
node = this.NodeFromHandle(Microsoft.Win32.NMCUSTOMDRAW.GetItemSpec(m.LParam));
if (node != null)
{
if (!base.ClientRectangle.IntersectsWith(Microsoft.Win32.NMCUSTOMDRAW.GetRect(m.LParam)))
{
m.Result = (IntPtr) 4L;
}
else
{
System.Drawing.Color backColor = Microsoft.Win32.NMTVCUSTOMDRAW.GetBackColor(m.LParam);
System.Drawing.Color foreColor = Microsoft.Win32.NMTVCUSTOMDRAW.GetForeColor(m.LParam);
itemState = (TreeNodeStates) Microsoft.Win32.NMCUSTOMDRAW.GetItemState(m.LParam);
IntPtr ptr = Windows.SendMessage(base.Handle, 0x110a, (IntPtr) 8L, IntPtr.Zero);
if ((ptr != IntPtr.Zero) && (node.Handle == ptr))
{
itemState |= TreeNodeStates.Marked;
}
GetNodeColorsEventArgs e = new GetNodeColorsEventArgs(node, itemState, backColor, foreColor);
this.OnGetNodeColors(e);
if (e.BackColor != backColor)
{
Microsoft.Win32.NMTVCUSTOMDRAW.SetBackColor(m.LParam, e.BackColor);
}
if (e.ForeColor != foreColor)
{
Microsoft.Win32.NMTVCUSTOMDRAW.SetForeColor(m.LParam, e.ForeColor);
}
if (base.DrawMode != TreeViewDrawMode.Normal)
{
m.Result = (IntPtr) (((int) m.Result) | 0x10);
}
}
break;
}
break;
case CDDS.CDDS_ITEMPOSTPAINT:
node = this.NodeFromHandle(Microsoft.Win32.NMCUSTOMDRAW.GetItemSpec(m.LParam));
if (node != null)
{
Rectangle bounds = node.Bounds;
if (base.ClientRectangle.IntersectsWith(bounds))
{
itemState = (TreeNodeStates) Microsoft.Win32.NMCUSTOMDRAW.GetItemState(m.LParam);
using (Graphics graphics = Graphics.FromHdcInternal(Microsoft.Win32.NMCUSTOMDRAW.GetHdc(m.LParam)))
{
PostDrawTreeNodeEventArgs args2 = new PostDrawTreeNodeEventArgs(graphics, node, bounds, itemState);
this.OnPostDrawNode(args2);
}
}
}
break;
}
}
protected override void OnGetNodeColors(GetNodeColorsEventArgs e)
{
bool flag = (e.State & TreeNodeStates.Selected) == 0;
if (base.ExplorerTheme || (base.HotTracking && ((e.State & (TreeNodeStates.Hot | TreeNodeStates.Selected)) == TreeNodeStates.Hot)))
{
e.ForeColor = e.Node.ForeColor;
flag = flag && !base.ExplorerTheme;
}
else if ((e.State & TreeNodeStates.Marked) > 0)
{
e.ForeColor = SystemColors.HighlightText;
flag = false;
}
if (flag && ImageHelper.IsCloseColors(e.ForeColor, e.BackColor))
{
e.ForeColor = this.ForeColor;
}
base.OnGetNodeColors(e);
}
