Alsing.Windows.Forms.SyntaxBox.Painter.NativePainter.RenderMargin C# (CSharp) Method

        private void RenderMargin(int RowIndex)
        {
            GDISurface bbuff = GFX.BackBuffer;

            if (Control.ShowGutterMargin)
            {
                bbuff.FillRect(GFX.GutterMarginBrush, 0, 0, Control.View.GutterMarginWidth, Control.View.RowHeight);
                bbuff.FillRect(GFX.GutterMarginBorderBrush, Control.View.GutterMarginWidth - 1, 0, 1, Control.View.RowHeight);
                if (RowIndex <= Control.Document.Count - 1)
                {
                    Row r = Control.Document[RowIndex];

                    if (Control.View.RowHeight >= Control._SyntaxBox.GutterIcons.ImageSize.Height)
                    {
                        if (r.Bookmarked)
                            Control._SyntaxBox.GutterIcons.Draw(Graphics.FromHdc(bbuff.hDC), 0, 0, 1);
                        if (r.Breakpoint)
                            Control._SyntaxBox.GutterIcons.Draw(Graphics.FromHdc(bbuff.hDC), 0, 0, 0);
                    }
                    else
                    {
                        int w = Control.View.RowHeight;
                        if (r.Bookmarked)
                            Control._SyntaxBox.GutterIcons.Draw(Graphics.FromHdc(bbuff.hDC), 0, 0, w, w, 1);
                        if (r.Breakpoint)
                            Control._SyntaxBox.GutterIcons.Draw(Graphics.FromHdc(bbuff.hDC), 0, 0, w, w, 0);
                    }

                    if (r.Images != null)
                    {
                        foreach (int i in r.Images)
                        {
                            if (Control.View.RowHeight >= Control._SyntaxBox.GutterIcons.ImageSize.Height)
                            {
                                Control._SyntaxBox.GutterIcons.Draw(Graphics.FromHdc(bbuff.hDC), 0, 0, i);
                            }
                            else
                            {
                                int w = Control.View.RowHeight;
                                Control._SyntaxBox.GutterIcons.Draw(Graphics.FromHdc(bbuff.hDC), 0, 0, w, w, i);
                            }
                        }
                    }
                }
            }


            if (Control.ShowLineNumbers)
            {
                bbuff.FillRect(GFX.LineNumberMarginBrush, Control.View.GutterMarginWidth, 0, Control.View.LineNumberMarginWidth + 1, Control.View.RowHeight);

                //bbuff.FillRect (GFX.LineNumberMarginBrush  ,Control.View.GutterMarginWidth+Control.View.LineNumberMarginWidth,0,1,Control.View.RowHeight);

                for (int j = 0; j < Control.View.RowHeight; j += 2)
                {
                    bbuff.FillRect(GFX.LineNumberMarginBorderBrush, Control.View.GutterMarginWidth + Control.View.LineNumberMarginWidth, j, 1, 1);
                }
            }


            if (!Control.ShowLineNumbers || !Control.ShowGutterMargin)
                bbuff.FillRect(GFX.BackgroundBrush, Control.View.TotalMarginWidth, 0, Control.View.TextMargin - Control.View.TotalMarginWidth - 3, Control.View.RowHeight);
            else
                bbuff.FillRect(GFX.BackgroundBrush, Control.View.TotalMarginWidth + 1, 0, Control.View.TextMargin - Control.View.TotalMarginWidth - 4, Control.View.RowHeight);

            if (Control.ShowLineNumbers)
            {
                bbuff.Font = GFX.FontNormal;
                bbuff.FontTransparent = true;

                bbuff.TextForeColor = Control.LineNumberForeColor;
                if (RowIndex <= Control.Document.Count - 1)
                {
                    int nw = MeasureString((RowIndex + 1).ToString(CultureInfo.InvariantCulture)).Width;

                    bbuff.DrawTabbedString((RowIndex + 1).ToString(CultureInfo.InvariantCulture), Control.View.GutterMarginWidth + Control.View.LineNumberMarginWidth - nw - 1, 1, 0, Control.PixelTabSize);
                }
            }
        }