protected override void WndProc(ref Message m)
{
if (m.Msg == Win32Declarations.WM_NCPAINT && BorderStyle == BorderStyle.FixedSingle)
{
IntPtr hdc = Win32Declarations.GetWindowDC(Handle);
IntPtr brush = Win32Declarations.CreateSolidBrush(Win32Declarations.ColorToRGB(_borderColor));
IntPtr oldBrush = Win32Declarations.SelectObject(hdc, brush);
RECT rect = new RECT(0, 0, Width, Height);
Win32Declarations.FrameRect(hdc, ref rect, brush);
Win32Declarations.SelectObject(hdc, oldBrush);
Win32Declarations.DeleteObject(brush);
Win32Declarations.ReleaseDC(Handle, hdc);
m.Result = IntPtr.Zero;
}
else
{
base.WndProc(ref m);
}
}
public void Draw(TreeNode node, IntPtr hdc, Rectangle rect)
{
if (!IsHandled(node) || node.Bounds.IsEmpty || node.IsEditing)
{
return;
}
CustomTreeView.CustomTreeView treeView = (CustomTreeView.CustomTreeView)node.TreeView;
int offset = CalculateOffset(node);
RichText.RichText text = (RichText.RichText)myNodes[node];
Rectangle contentRect = CalculateContentRectangle(node, hdc, offset);
rect.X += offset;
rect.Width -= offset;
Rectangle fullRect = new Rectangle(contentRect.X - 1, node.Bounds.Top, contentRect.Width + 5, node.Bounds.Height);
//g.SetClip(fullRect);
TreeNode dropHiliteNode = treeView.DraggingOver ? treeView.DropHighlightedNode : null;
bool hasFocus = node.TreeView.Focused;
bool drawSelected = treeView.DraggingOver
? (node == dropHiliteNode)
: node.IsSelected && hasFocus;
bool drawNonfocusedSelection = node.IsSelected && !node.TreeView.HideSelection &&
(!hasFocus || treeView.DraggingOver);
Color backColor;
if (drawSelected)
{
backColor = SystemColors.Highlight;
}
else if (drawNonfocusedSelection)
{
backColor = SystemColors.Control;
}
else
{
backColor = treeView.BackColor;
}
IntPtr hBrush = Win32Declarations.CreateSolidBrush(Win32Declarations.ColorToRGB(backColor));
RECT lineRect = new RECT(fullRect.Left - 1, node.Bounds.Top, fullRect.Right + 1, node.Bounds.Bottom);
Win32Declarations.FillRect(hdc, ref lineRect, hBrush);
Win32Declarations.DeleteObject(hBrush);
if (drawSelected)
{
text = (RichText.RichText)text.Clone();
text.SetColors(SystemColors.HighlightText, SystemColors.Highlight);
}
else if (drawNonfocusedSelection)
{
text = (RichText.RichText)text.Clone();
text.SetColors(SystemColors.WindowText, SystemColors.Control);
}
text.Draw(hdc, contentRect);
if (hasFocus && treeView.SelectedNode == node && treeView.NeedFocusRect() && dropHiliteNode == null)
{
RECT rc = new RECT(fullRect.Left - 1, fullRect.Top, fullRect.Right + 1, fullRect.Bottom);
Win32Declarations.DrawFocusRect(hdc, ref rc);
}
}
