Nested BorderGroup

gistfile1.txt

public class BorderGroup
{
    private static Vector2[] _startPos = new Vector2[8];
    private static Vector2[] _labelSize = new Vector2[8];
    private static uint[] _colour = new uint[8];
    private static byte _nestIndex = 0;
    private static float _dentMulitpier = 3;
    public static void BeginBorder(string label, uint colour)
    {
        ImGui.PushID(label);
        
        _colour[_nestIndex] = colour;
        _startPos[_nestIndex] = ImGui.GetCursorScreenPos();
        _startPos[_nestIndex].X -= 3;
        _startPos[_nestIndex].Y += ImGui.GetTextLineHeight() * 0.5f;
        ImGui.Text(label);
        _labelSize[_nestIndex] = ImGui.GetItemRectSize();
        _nestIndex++;
        ImGui.Indent(_dentMulitpier * _nestIndex);
    }



    public static void BeginBorder(string label)
    {
        BeginBorder(label, ImGui.GetColorU32(ImGuiCol.Border)); 
    }
    
    public static void BeginBorder(string label, ImGuiCol colorIdx)
    {
        BeginBorder(label, ImGui.GetColorU32(colorIdx)); 
    }

    public static void EndBoarder()
    { 
        ImGui.Unindent(_dentMulitpier * _nestIndex);
        _nestIndex--;
        Vector2 size = new Vector2(ImGui.GetContentRegionAvail().X, ImGui.GetCursorScreenPos().Y - _startPos[_nestIndex].Y);
        //ImGui.get
        ImDrawListPtr wdl = ImGui.GetWindowDrawList();

        float by = _startPos[_nestIndex].Y + size.Y -_dentMulitpier * _nestIndex;
        float rx = _startPos[_nestIndex].X + size.X - _dentMulitpier * _nestIndex;
        
        Vector2[] pts = new Vector2[6];
        pts[0] = new Vector2(_startPos[_nestIndex].X + _dentMulitpier, _startPos[_nestIndex].Y);
        pts[1] = _startPos[_nestIndex]; //top left
        pts[2] = new Vector2(_startPos[_nestIndex].X, by); //bottom left
        pts[3] = new Vector2(rx, by); //bottom right
        pts[4] = new Vector2(rx, _startPos[_nestIndex].Y); //top right
        pts[5] = new Vector2(_startPos[_nestIndex].X + _labelSize[_nestIndex].X + _dentMulitpier, _startPos[_nestIndex].Y);
        wdl.AddPolyline(ref pts[0], pts.Length, _colour[_nestIndex], false, 1.0f);
        
        ImGui.PopID();
        
    }
}