void RealizeImageBrush(ImageBrush brush, ref XForm xform, ref XImage xImage)
{
//Debug.Assert(xform != null);
//xform = new XForm(this.writer.Owner, new XRect(brush.Viewbox.X * 3 / 4, brush.Viewbox.Y * 3 / 4, brush.Viewbox.Width * 3 / 4, brush.Viewbox.Height * 3 / 4));
//string imageUri = brush.ImageSource;
FixedPage fpage = brush.GetParent<FixedPage>();
if (fpage == null)
Debug.Assert(false);
FixedPayload payload = fpage.Document.Payload;
// Get the font object.
// Important: font.PdfFont is not yet defined here on the first call
string uriString = brush.ImageSource;
BitmapSource image = payload.GetImage(uriString);
// int factor = 1;
//int width = (int)(100 * factor);
//int height = (int)(100 * factor);
//DrawingVisual visual = new DrawingVisual();
//DrawingContext vdc = visual.RenderOpen();
//vdc.DrawRectangle(Brushes.GreenYellow, null, new Rect(0, 0, width, height));
//vdc.DrawLine(new Pen(Brushes.Red, 3), new Point(0, 0), new Point(100, 100));
//vdc.DrawLine(new Pen(Brushes.Red, 3), new Point(100, 0), new Point(0, 100));
//vdc.Close();
//RenderTargetBitmap rtb = new RenderTargetBitmap(width, height, 72 * factor, 72 * factor, PixelFormats.Default);
//rtb.Render(visual);
//BitmapImage bitmapImage = new BitmapImage(
xImage = XImage.FromBitmapSource(image);
//XGraphics gfx = XGraphics.FromForm(xform);
//gfx.DrawRectangle(XBrushes.Firebrick, new XRect(0, 0, 100, 100));
//PdfContentWriter formWriter = new PdfContentWriter(xform, RenderMode.Default);
////formWriter.Size = brush.Viewport.Size;
//formWriter.BeginContent(false);
////formWriter.WriteElement(visual);
//formWriter.EndContent();
}
XPImage Build(ImageBrush brush)
{
FixedPage fpage = brush.GetParent<FixedPage>();
if (fpage == null)
Debug.Assert(false);
FixedPayload payload = fpage.Document.Payload; // TODO: find better way to get FixedPayload
//Debug.Assert(Object.Equals(payload, Context.
// Get the font object.
// Important: font.PdfFont is not yet defined here on the first call
string uriString = brush.ImageSource;
BitmapSource bitmapSource = payload.GetImage(uriString);
XPImage xpImage = new XPImage(bitmapSource);
return xpImage;
}
void Construct(DocumentRenderingContext context, ImageBrush brush)
{
FixedPage fpage = brush.GetParent<FixedPage>();
if (fpage == null)
Debug.Assert(false);
FixedPayload payload = fpage.Document.Payload; // TODO: find better way to get FixedPayload
//Debug.Assert(Object.Equals(payload, Context.
this.form = XFormBuilder.FromImageBrush(context, brush);
// Get the font object.
// Important: font.PdfFont is not yet defined here on the first call
//string uriString = brush.ImageSource;
//BitmapSource bitmapSource = payload.GetImage(uriString);
//XPImage xpImage = new XPImage(bitmapSource);
}
/// <summary>
/// Creates an XForm from an image brush.
/// </summary>
public static XForm FromImageBrush(DocumentRenderingContext context, ImageBrush brush)
{
XPImage xpImage = ImageBuilder.FromImageBrush(context, brush);
XImage ximage = xpImage.XImage;
double width = ximage.PixelWidth;
double height = ximage.PixelHeight;
// view box in point
// XRect box = new XRect(brush.Viewbox.X * 0.75, brush.Viewbox.Y * 0.75, brush.Viewbox.Width * 0.75, brush.Viewbox.Height * 0.75);
XRect box = new XRect(0, 0, width, height);
XForm xform = new XForm(context.PdfDocument, box);
PdfContentWriter formWriter = new PdfContentWriter(context, xform, RenderMode.Default);
Debug.Assert(ximage != null);
PdfFormXObject pdfForm = xform.PdfForm;
pdfForm.Elements.SetMatrix(PdfFormXObject.Keys.Matrix, new XMatrix());
//formWriter.Size = brush.Viewport.Size;
formWriter.BeginContentRaw();
string imageID = formWriter.Resources.AddImage(new PdfImage(context.PdfDocument, ximage));
XMatrix matrix = new XMatrix();
double scaleX = brush.Viewport.Width / brush.Viewbox.Width * 4 / 3 * ximage.PointWidth;
double scaleY = brush.Viewport.Height / brush.Viewbox.Height * 4 / 3 * ximage.PointHeight;
matrix.TranslatePrepend(-brush.Viewbox.X, -brush.Viewbox.Y);
matrix.ScalePrepend(scaleX, scaleY);
matrix.TranslatePrepend(brush.Viewport.X / scaleX, brush.Viewport.Y / scaleY);
matrix = new XMatrix(width, 0, 0, -height, 0, height);
formWriter.WriteLiteral("q\n");
// TODO:WriteClip(path.Data);
//formWriter.WriteLiteral("{0:0.###} 0 0 -{1:0.###} {2:0.###} {3:0.###} cm 100 Tz {4} Do Q\n",
// matrix.M11, matrix.M22, matrix.OffsetX, matrix.OffsetY + brush.Viewport.Height, imageID);
formWriter.WriteMatrix(matrix);
formWriter.WriteLiteral(imageID + " Do Q\n");
formWriter.EndContent();
return xform;
}
/// <summary>
/// Parses an ImageBrush element.
/// </summary>
ImageBrush ParseImageBrush()
{
Debug.Assert(this.reader.Name == "ImageBrush");
bool isEmptyElement = this.reader.IsEmptyElement;
ImageBrush brush = new ImageBrush();
while (MoveToNextAttribute())
{
switch (this.reader.Name)
{
//case "Name":
// //brush.Name = this.rdr.Value;
// break;
case "Opacity":
brush.Opacity = ParseDouble(this.reader.Value);
break;
case "Transform":
brush.Transform = ParseMatrixTransform(this.reader.Value);
break;
case "ViewboxUnits":
brush.ViewboxUnits = ParseEnum<ViewUnits>(this.reader.Value);
break;
case "ViewportUnits":
brush.ViewportUnits = ParseEnum<ViewUnits>(this.reader.Value);
break;
case "TileMode":
brush.TileMode = ParseEnum<TileMode>(this.reader.Value);
break;
case "Viewbox":
brush.Viewbox = Rect.Parse(this.reader.Value);
break;
case "Viewport":
brush.Viewport = Rect.Parse(this.reader.Value);
break;
case "ImageSource":
brush.ImageSource = this.reader.Value;
break;
case "x:Key":
brush.Key = this.reader.Value;
break;
default:
Debugger.Break();
break;
}
}
if (!isEmptyElement)
{
MoveToNextElement();
while (this.reader.IsStartElement())
{
switch (this.reader.Name)
{
case "ImageBrush.Transform":
MoveToNextElement();
brush.Transform = ParseMatrixTransform();
MoveToNextElement();
break;
default:
Debugger.Break();
break;
}
}
}
MoveToNextElement();
return brush;
}
public static XPImageBrush Create(DocumentRenderingContext context, ImageBrush brush)
{
XPImageBrush xpImageBrush = new XPImageBrush(brush);
xpImageBrush.Construct(context, brush);
return xpImageBrush;
}
/// <summary>
/// Initializes a new instance of the <see cref="XPObjectBase"/> class.
/// </summary>
XPImageBrush(ImageBrush brush)
: base(brush)
{
}
public static XPImage FromImageBrush(DocumentRenderingContext context, ImageBrush brush)
{
ImageBuilder ib = new ImageBuilder(context);
XPImage xpImage = ib.Build(brush);
return xpImage;
}
PdfTilingPattern BuildPattern(ImageBrush brush, XMatrix transform)
{
// Bounding box lays always at (0,0)
XRect bbox = new XRect(0, 0, brush.Viewport.Width, brush.Viewport.Height);
#if true
XMatrix matrix = transform;
matrix.Prepend(new XMatrix(1, 0, 0, 1, brush.Viewport.X, brush.Viewport.Y));
if (brush.Transform != null)
{
matrix.Prepend(new XMatrix(brush.Transform.Matrix.m11, brush.Transform.Matrix.m12, brush.Transform.Matrix.m21,
brush.Transform.Matrix.m22, brush.Transform.Matrix.offsetX, brush.Transform.Matrix.offsetY));
}
#else
double c = 1;
XMatrix matrix = new XMatrix(1 * c, 0, 0, 1 * c, brush.Viewport.X * c, brush.Viewport.Y * c); // HACK: 480
XMatrix t = transform;
//t.Invert();
t.Prepend(matrix);
//t.TranslateAppend(brush.Viewport.X , brush.Viewport.Y);
//matrix.Append(t);
matrix = t;
#endif
double xStep = brush.Viewport.Width;
double yStep = brush.Viewport.Height;
// PdfTilingPattern
//<<
// /BBox [0 0 240 120]
// /Length 74
// /Matrix [0.75 0 0 -0.75 0 480]
// /PaintType 1
// /PatternType 1
// /Resources
// <<
// /ExtGState
// <<
// /GS0 10 0 R
// >>
// /XObject
// <<
// /Fm0 17 0 R
// >>
// >>
// /TilingType 3
// /Type /Pattern
// /XStep 480
// /YStep 640
//>>
//stream
// q
// 0 0 240 120 re
// W n
// q
// 2.3999939 0 0 1.1999969 0 0 cm
// /GS0 gs
// /Fm0 Do
// Q
//Q
//endstream
PdfTilingPattern pattern = Context.PdfDocument.Internals.CreateIndirectObject<PdfTilingPattern>();
pattern.Elements.SetInteger(PdfTilingPattern.Keys.PatternType, 1); // Tiling
pattern.Elements.SetInteger(PdfTilingPattern.Keys.PaintType, 1); // Color
pattern.Elements.SetInteger(PdfTilingPattern.Keys.TilingType, 3); // Constant spacing and faster tiling
pattern.Elements.SetMatrix(PdfTilingPattern.Keys.Matrix, matrix);
pattern.Elements.SetRectangle(PdfTilingPattern.Keys.BBox, new PdfRectangle(bbox));
pattern.Elements.SetReal(PdfTilingPattern.Keys.XStep, xStep);
pattern.Elements.SetReal(PdfTilingPattern.Keys.YStep, yStep);
// Set extended graphic state like Acrobat do
PdfExtGState pdfExtGState = Context.PdfDocument.Internals.CreateIndirectObject<PdfExtGState>();
pdfExtGState.SetDefault1();
PdfFormXObject pdfForm = BuildForm(brush);
//XRect viewBoxForm = new XRect(0, 0, 640, 480);
PdfContentWriter writer = new PdfContentWriter(Context, pattern);
writer.BeginContentRaw();
// Acrobat 8 clips to bounding box, so do we
//writer.WriteClip(bbox);
XMatrix transformation = new XMatrix();
double dx = brush.Viewport.Width / brush.Viewbox.Width * 96 / pdfForm.DpiX;
double dy = brush.Viewport.Height / brush.Viewbox.Height * 96 / pdfForm.DpiY;
transformation = new XMatrix(dx, 0, 0, dy, 0, 0);
writer.WriteMatrix(transformation);
writer.WriteGraphicsState(pdfExtGState);
string name = writer.Resources.AddForm(pdfForm);
writer.WriteLiteral(name + " Do\n");
writer.EndContent();
return pattern;
}
/// <summary>
/// Builds a tiling pattern from an image brush.
/// </summary>
public static PdfTilingPattern BuildFromImageBrush(DocumentRenderingContext context, ImageBrush brush, XMatrix transform)
{
TilingPatternBuilder builder = new TilingPatternBuilder(context);
PdfTilingPattern pattern = builder.BuildPattern(brush, transform);
return pattern;
}
/// <summary>
/// Builds a PdfFormXObject from the specified brush.
/// </summary>
PdfFormXObject BuildForm(ImageBrush brush)
{
//<<
// /BBox [0 100 100 0]
// /Length 65
// /Matrix [1 0 0 1 0 0]
// /Resources
// <<
// /ColorSpace
// <<
// /CS0 15 0 R
// >>
// /ExtGState
// <<
// /GS0 10 0 R
// >>
// /ProcSet [/PDF /ImageC /ImageI]
// /XObject
// <<
// /Im0 16 0 R
// >>
// >>
// /Subtype /Form
//>>
//stream
// q
// 0 0 100 100 re
// W n
// q
// /GS0 gs
// 100 0 0 -100 0 100 cm
// /Im0 Do
// Q
//Q
//endstream
PdfFormXObject pdfForm = Context.PdfDocument.Internals.CreateIndirectObject<PdfFormXObject>();
XPImage xpImage = ImageBuilder.FromImageBrush(Context, brush);
XImage ximage = xpImage.XImage;
ximage.Interpolate = false;
double width = ximage.PixelWidth;
double height = ximage.PixelHeight;
pdfForm.DpiX = ximage.HorizontalResolution;
pdfForm.DpiY = ximage.VerticalResolution;
// view box in point
// XRect box = new XRect(brush.Viewbox.X * 0.75, brush.Viewbox.Y * 0.75, brush.Viewbox.Width * 0.75, brush.Viewbox.Height * 0.75);
XRect box = new XRect(0, 0, width, height);
pdfForm.Elements.SetRectangle(PdfFormXObject.Keys.BBox, new PdfRectangle(0, height, width, 0));
pdfForm.Elements.SetMatrix(PdfFormXObject.Keys.Matrix, new XMatrix());
PdfContentWriter writer = new PdfContentWriter(Context, pdfForm);
Debug.Assert(ximage != null);
//PdfFormXObject pdfForm = xform.PdfForm;
pdfForm.Elements.SetMatrix(PdfFormXObject.Keys.Matrix, new XMatrix());
//formWriter.Size = brush.Viewport.Size;
writer.BeginContentRaw();
string imageID = writer.Resources.AddImage(new PdfImage(Context.PdfDocument, ximage));
XMatrix matrix = new XMatrix();
//double scaleX = brush.Viewport.Width / brush.Viewbox.Width * 4 / 3 * ximage.PointWidth;
//double scaleY = brush.Viewport.Height / brush.Viewbox.Height * 4 / 3 * ximage.PointHeight;
//matrix.TranslatePrepend(-brush.Viewbox.X, -brush.Viewbox.Y);
//matrix.ScalePrepend(scaleX, scaleY);
//matrix.TranslatePrepend(brush.Viewport.X / scaleX, brush.Viewport.Y / scaleY);
//double scaleX = 96 / ximage.HorizontalResolution;
//double scaleY = 96 / ximage.VerticalResolution;
//width *= scaleX;
//height *= scaleY;
matrix = new XMatrix(width, 0, 0, -height, 0, height);
writer.WriteLiteral("q\n");
// TODO:WriteClip(path.Data);
//formWriter.WriteLiteral("{0:0.###} 0 0 -{1:0.###} {2:0.###} {3:0.###} cm 100 Tz {4} Do Q\n",
// matrix.M11, matrix.M22, matrix.OffsetX, matrix.OffsetY + brush.Viewport.Height, imageID);
writer.WriteMatrix(matrix);
writer.WriteLiteral(imageID + " Do Q\n");
#if DEBUG
if (DevHelper.BorderPatterns)
writer.WriteLiteral("1 1 1 rg 0 0 m {0:0.###} 0 l {0:0.###} {1:0.###} l 0 {1:0.###} l h s\n", width, height);
#endif
writer.EndContent();
return pdfForm;
}
public XPVisualBrush(ImageBrush brush)
: base(brush)
{
}
