iTextSharp.text.pdf.PdfContentByte.Rectangle C# (CSharp) Метод

        public void Rectangle(Rectangle rectangle)
        {
            // the coordinates of the border are retrieved
            float x1 = rectangle.Left;
            float y1 = rectangle.Bottom;
            float x2 = rectangle.Right;
            float y2 = rectangle.Top;

            // the backgroundcolor is set
            BaseColor background = rectangle.BackgroundColor;
            if (background != null) {
                SaveState();
                SetColorFill(background);
                Rectangle(x1, y1, x2 - x1, y2 - y1);
                Fill();
                RestoreState();
            }

            // if the element hasn't got any borders, nothing is added
            if (! rectangle.HasBorders()) {
                return;
            }

            // if any of the individual border colors are set
            // we draw the borders all around using the
            // different colors
            if (rectangle.UseVariableBorders) {
                VariableRectangle(rectangle);
            }
            else {
                // the width is set to the width of the element
                if (rectangle.BorderWidth != iTextSharp.text.Rectangle.UNDEFINED) {
                    SetLineWidth(rectangle.BorderWidth);
                }

                // the color is set to the color of the element
                BaseColor color = rectangle.BorderColor;
                if (color != null) {
                    SetColorStroke(color);
                }

                // if the box is a rectangle, it is added as a rectangle
                if (rectangle.HasBorder(iTextSharp.text.Rectangle.BOX)) {
                    this.Rectangle(x1, y1, x2 - x1, y2 - y1);
                }
                    // if the border isn't a rectangle, the different sides are added apart
                else {
                    if (rectangle.HasBorder(iTextSharp.text.Rectangle.RIGHT_BORDER)) {
                        MoveTo(x2, y1);
                        LineTo(x2, y2);
                    }
                    if (rectangle.HasBorder(iTextSharp.text.Rectangle.LEFT_BORDER)) {
                        MoveTo(x1, y1);
                        LineTo(x1, y2);
                    }
                    if (rectangle.HasBorder(iTextSharp.text.Rectangle.BOTTOM_BORDER)) {
                        MoveTo(x1, y1);
                        LineTo(x2, y1);
                    }
                    if (rectangle.HasBorder(iTextSharp.text.Rectangle.TOP_BORDER)) {
                        MoveTo(x1, y2);
                        LineTo(x2, y2);
                    }
                }

                Stroke();

                if (color != null) {
                    ResetRGBColorStroke();
                }
            }
        }

// ---------------------------------------------------------------------------    
    /**
     * Draws three rectangles
     * @param canvas
     */
    public void DrawRectangles(PdfContentByte canvas) {
      canvas.SaveState();
      canvas.SetGrayFill(0.9f);
      canvas.Rectangle(33, 592, 72, 72);
      canvas.Rectangle(263, 406, 72, 72);
      canvas.Rectangle(491, 168, 72, 72);
      canvas.FillStroke();
      canvas.RestoreState();
    }