public void RealizeBrush(XBrush brush)
{
if (brush is XSolidBrush)
{
XColor color = ((XSolidBrush)brush).Color;
if (this.realizedFillColor.Argb != color.Argb)
{
if (this.realizedFillColor.Rgb != color.Rgb)
{
this.renderer.AppendFormat("{0} {1} {2} rg\n",
PdfEncoders.ToString(color.R / 255.0), PdfEncoders.ToString(color.G / 255.0), PdfEncoders.ToString(color.B / 255.0));
}
if (this.renderer.Owner.Version >= 14 && this.realizedFillColor.A != color.A)
{
PdfExtGState extGState = this.renderer.Owner.ExtGStateTable.GetExtGStateNonStroke(color.A);
string gs = this.renderer.Resources.AddExtGState(extGState);
this.renderer.AppendFormat("{0} gs\n", gs);
// Must create transparany group
if (this.renderer.page != null && color.A < 1)
this.renderer.page.transparencyUsed = true;
}
this.realizedFillColor = color;
}
}
else if (brush is XLinearGradientBrush)
{
XMatrix matrix = this.renderer.defaultViewMatrix;
matrix.Multiply(this.Transform);
PdfShadingPattern pattern = new PdfShadingPattern(this.renderer.Owner);
pattern.SetupFromBrush((XLinearGradientBrush)brush, matrix);
string name = this.renderer.Resources.AddPattern(pattern);
this.renderer.AppendFormat("/Pattern cs\n", name);
this.renderer.AppendFormat("{0} scn\n", name);
// Invalidate fill color
this.realizedFillColor = XColor.Empty;
}
}
public void RealizeBrush(XBrush brush, PdfColorMode colorMode)
{
if (brush is XSolidBrush)
{
XColor color = ((XSolidBrush)brush).Color;
color = ColorSpaceHelper.EnsureColorMode(colorMode, color);
if (colorMode != PdfColorMode.Cmyk)
{
if (this.realizedFillColor.Rgb != color.Rgb)
{
this.renderer.Append(PdfEncoders.ToString(color, PdfColorMode.Rgb));
this.renderer.Append(" rg\n");
}
}
else
{
if (!ColorSpaceHelper.IsEqualCmyk(this.realizedFillColor, color))
{
this.renderer.Append(PdfEncoders.ToString(color, PdfColorMode.Cmyk));
this.renderer.Append(" k\n");
}
}
if (this.renderer.Owner.Version >= 14 && this.realizedFillColor.A != color.A)
{
PdfExtGState extGState = this.renderer.Owner.ExtGStateTable.GetExtGStateNonStroke(color.A);
string gs = this.renderer.Resources.AddExtGState(extGState);
this.renderer.AppendFormat("{0} gs\n", gs);
// Must create transparany group
if (this.renderer.page != null && color.A < 1)
this.renderer.page.transparencyUsed = true;
}
this.realizedFillColor = color;
}
else if (brush is XLinearGradientBrush)
{
XMatrix matrix = this.renderer.defaultViewMatrix;
matrix.Prepend(this.Transform);
PdfShadingPattern pattern = new PdfShadingPattern(this.renderer.Owner);
pattern.SetupFromBrush((XLinearGradientBrush)brush, matrix);
string name = this.renderer.Resources.AddPattern(pattern);
this.renderer.AppendFormat("/Pattern cs\n", name);
this.renderer.AppendFormat("{0} scn\n", name);
// Invalidate fill color
this.realizedFillColor = XColor.Empty;
}
}
public void RealizeBrush(XBrush brush, PdfColorMode colorMode, int renderingMode, double fontEmSize)
{
// Rendering mode 2 is used for bold simulation.
// Reference: TABLE 5.3 Text rendering modes / Page 402
XSolidBrush solidBrush = brush as XSolidBrush;
if (solidBrush != null)
{
XColor color = solidBrush.Color;
bool overPrint = solidBrush.Overprint;
if (renderingMode == 0)
{
RealizeFillColor(color, overPrint, colorMode);
}
else if (renderingMode == 2)
{
// Come here in case of bold simulation.
RealizeFillColor(color, false, colorMode);
//color = XColors.Green;
RealizePen(new XPen(color, fontEmSize * Const.BoldEmphasis), colorMode);
}
else
throw new InvalidOperationException("Only rendering modes 0 and 2 are currently supported.");
}
else
{
if (renderingMode != 0)
throw new InvalidOperationException("Rendering modes other than 0 can only be used with solid color brushes.");
XLinearGradientBrush gradientBrush = brush as XLinearGradientBrush;
if (gradientBrush != null)
{
Debug.Assert(UnrealizedCtm.IsIdentity, "Must realize ctm first.");
XMatrix matrix = _renderer.DefaultViewMatrix;
matrix.Prepend(EffectiveCtm);
PdfShadingPattern pattern = new PdfShadingPattern(_renderer.Owner);
pattern.SetupFromBrush(gradientBrush, matrix, _renderer);
string name = _renderer.Resources.AddPattern(pattern);
_renderer.AppendFormatString("/Pattern cs\n", name);
_renderer.AppendFormatString("{0} scn\n", name);
// Invalidate fill color.
_realizedFillColor = XColor.Empty;
}
}
}