/// <summary> /// Setups the shading pattern from the specified brush. /// </summary> internal void SetupFromBrush(XLinearGradientBrush brush, XMatrix matrix, XGraphicsPdfRenderer renderer) { if (brush == null) throw new ArgumentNullException("brush"); PdfShading shading = new PdfShading(_document); shading.SetupFromBrush(brush, renderer); Elements[Keys.Shading] = shading; //Elements[Keys.Matrix] = new PdfLiteral("[" + PdfEncoders.ToString(matrix) + "]"); Elements.SetMatrix(Keys.Matrix, matrix); }
public PdfGraphicsState(XGraphicsPdfRenderer renderer) { this.renderer = renderer; }
/// <summary> /// Setups the shading from the specified brush. /// </summary> internal void SetupFromBrush(XLinearGradientBrush brush, XGraphicsPdfRenderer renderer) { if (brush == null) throw new ArgumentNullException("brush"); PdfColorMode colorMode = _document.Options.ColorMode; XColor color1 = ColorSpaceHelper.EnsureColorMode(colorMode, brush._color1); XColor color2 = ColorSpaceHelper.EnsureColorMode(colorMode, brush._color2); PdfDictionary function = new PdfDictionary(); Elements[Keys.ShadingType] = new PdfInteger(2); if (colorMode != PdfColorMode.Cmyk) Elements[Keys.ColorSpace] = new PdfName("/DeviceRGB"); else Elements[Keys.ColorSpace] = new PdfName("/DeviceCMYK"); double x1 = 0, y1 = 0, x2 = 0, y2 = 0; if (brush._useRect) { XPoint pt1 = renderer.WorldToView(brush._rect.TopLeft); XPoint pt2 = renderer.WorldToView(brush._rect.BottomRight); switch (brush._linearGradientMode) { case XLinearGradientMode.Horizontal: x1 = pt1.X; y1 = pt1.Y; x2 = pt2.X; y2 = pt1.Y; break; case XLinearGradientMode.Vertical: x1 = pt1.X; y1 = pt1.Y; x2 = pt1.X; y2 = pt2.Y; break; case XLinearGradientMode.ForwardDiagonal: x1 = pt1.X; y1 = pt1.Y; x2 = pt2.X; y2 = pt2.Y; break; case XLinearGradientMode.BackwardDiagonal: x1 = pt2.X; y1 = pt1.Y; x2 = pt1.X; y2 = pt2.Y; break; } } else { XPoint pt1 = renderer.WorldToView(brush._point1); XPoint pt2 = renderer.WorldToView(brush._point2); x1 = pt1.X; y1 = pt1.Y; x2 = pt2.X; y2 = pt2.Y; } const string format = Config.SignificantFigures3; Elements[Keys.Coords] = new PdfLiteral("[{0:" + format + "} {1:" + format + "} {2:" + format + "} {3:" + format + "}]", x1, y1, x2, y2); //Elements[Keys.Background] = new PdfRawItem("[0 1 1]"); //Elements[Keys.Domain] = Elements[Keys.Function] = function; //Elements[Keys.Extend] = new PdfRawItem("[true true]"); string clr1 = "[" + PdfEncoders.ToString(color1, colorMode) + "]"; string clr2 = "[" + PdfEncoders.ToString(color2, colorMode) + "]"; function.Elements["/FunctionType"] = new PdfInteger(2); function.Elements["/C0"] = new PdfLiteral(clr1); function.Elements["/C1"] = new PdfLiteral(clr2); function.Elements["/Domain"] = new PdfLiteral("[0 1]"); function.Elements["/N"] = new PdfInteger(1); }