PdfRpt.Core.Helper.GradientBackground.DrawGradientBackground C# (CSharp) Method

GradientBackground Class Documentation 显示文件 Open project: VahidN/PdfReport

DrawGradientBackground() public static method

Draws a rectangular gradient background color.

public static DrawGradientBackground ( this position, PdfContentByte canvases, BaseColor startColor, BaseColor endColor ) : void
position	this	The coordinates of the cell
canvases	iTextSharp.text.pdf.PdfContentByte	An array of PdfContentByte to add text or graphics
startColor	iTextSharp.text.BaseColor	Gradient's Start Color
endColor	iTextSharp.text.BaseColor	Gradient's End Color
return	void

        public static void DrawGradientBackground(this Rectangle position, PdfContentByte[] canvases, BaseColor startColor, BaseColor endColor)
        {
            if (startColor == null || endColor == null) return;

            var cb = canvases[PdfPTable.BACKGROUNDCANVAS];
            cb.SaveState();

            var shading = PdfShading.SimpleAxial(
                                    cb.PdfWriter,
                                    position.Left, position.Top, position.Left, position.Bottom,
                                    startColor, endColor);
            var shadingPattern = new PdfShadingPattern(shading);

            cb.SetShadingFill(shadingPattern);
            cb.Rectangle(position.Left, position.Bottom, position.Width, position.Height);
            cb.Fill();

            cb.RestoreState();
        }

GradientBackground

ApplyGradientBackground

DrawGradientBackground