public PdfPage(
PdfResources resources,
PdfContentStream contents,
int pagewidth,
int pageheight,
PdfObjectId objectId)
: base(objectId)
{
this[PdfName.Names.Type] = PdfName.Names.Page;
this[PdfName.Names.Resources] = resources.GetReference();
this[PdfName.Names.Contents] = contents.GetReference();
PdfArray mediaBox = new PdfArray();
mediaBox.Add(new PdfNumeric(0));
mediaBox.Add(new PdfNumeric(0));
mediaBox.Add(new PdfNumeric(pagewidth));
mediaBox.Add(new PdfNumeric(pageheight));
this[PdfName.Names.MediaBox] = mediaBox;
}
public void StopRenderer()
{
fontSetup.AddToResources(new PdfFontCreator(pdfCreator), pdfCreator.GetResources());
pdfCreator.OutputTrailer();
pdfCreator = null;
pdfResources = null;
currentStream = null;
currentAnnotList = null;
currentPage = null;
idReferences = null;
currentFontName = String.Empty;
currentFill = null;
prevUnderlineColor = null;
prevOverlineColor = null;
prevLineThroughColor = null;
fontSetup = null;
fontInfo = null;
}
public PdfPage(
PdfResources resources,
PdfContentStream contents,
int pagewidth,
int pageheight,
PdfObjectId objectId)
: base(objectId)
{
this[PdfName.Names.Type] = PdfName.Names.Page;
this[PdfName.Names.Resources] = resources.GetReference();
this[PdfName.Names.Contents] = contents.GetReference();
PdfArray mediaBox = new PdfArray();
mediaBox.Add(new PdfNumeric(0));
mediaBox.Add(new PdfNumeric(0));
mediaBox.Add(new PdfNumeric(pagewidth));
mediaBox.Add(new PdfNumeric(pageheight));
this[PdfName.Names.MediaBox] = mediaBox;
}
/**
* render page into PDF
*
* @param page page to render
*/
public void RenderPage(Page page)
{
BodyAreaContainer body;
AreaContainer before, after, start, end;
currentStream = this.pdfCreator.MakeContentStream();
body = page.getBody();
before = page.getBefore();
after = page.getAfter();
start = page.getStart();
end = page.getEnd();
this.currentFontName = "";
this.currentFontSize = 0;
this.currentLetterSpacing = Single.NaN;
currentStream.BeginTextObject();
RenderBodyAreaContainer(body);
if (before != null)
{
RenderAreaContainer(before);
}
if (after != null)
{
RenderAreaContainer(after);
}
if (start != null)
{
RenderAreaContainer(start);
}
if (end != null)
{
RenderAreaContainer(end);
}
CloseText();
// Bug fix for issue 1823
this.currentLetterSpacing = Single.NaN;
float w = page.getWidth();
float h = page.GetHeight();
currentStream.EndTextObject();
var idList = new System.Collections.Generic.List <string>();
foreach (string id in page.getIDList())
{
idList.Add(id);
}
currentPage = this.pdfCreator.MakePage(
this.pdfResources, currentStream,
Convert.ToInt32(Math.Round(w / 1000)),
Convert.ToInt32(Math.Round(h / 1000)), idList.ToArray());
if (page.hasLinks() || currentAnnotList != null)
{
if (currentAnnotList == null)
{
currentAnnotList = this.pdfCreator.MakeAnnotList();
}
currentPage.SetAnnotList(currentAnnotList);
ArrayList lsets = page.getLinkSets();
foreach (LinkSet linkSet in lsets)
{
linkSet.align();
String dest = linkSet.getDest();
LinkKind linkType = linkSet.getLinkType();
ArrayList rsets = linkSet.getRects();
foreach (LinkedRectangle lrect in rsets)
{
currentAnnotList.Add(
this.pdfCreator.MakeLink(lrect.getRectangle(),
dest, linkType).GetReference());
}
}
currentAnnotList = null;
}
else
{
// just to be on the safe side
currentAnnotList = null;
}
// ensures that color is properly reset for blocks that carry over pages
this.currentFill = null;
}
/// <summary>
/// Main method for running the sample.
/// </summary>
/// <param name="stream"></param>
public static SampleOutputInfo[] Run()
{
// Create the pdf document
PdfFixedDocument document = new PdfFixedDocument();
// Create a new page in the document
PdfPage page = document.Pages.Add();
PdfBrush brush = new PdfBrush(PdfRgbColor.DarkRed);
PdfStandardFont helvetica = new PdfStandardFont(PdfStandardFontFace.Helvetica, 36);
page.Graphics.DrawString("Hello World", helvetica, brush, 100, 100);
PdfContentStream cs = new PdfContentStream(page.Graphics);
// Sets the stroke and fill colorspaces to DeviceRGB
cs.SetStrokeColorSpace(new PdfRgbColorSpace());
cs.SetFillColorSpace(new PdfRgbColorSpace());
// Set stroke color to blue
cs.SetStrokeColor(new double[] { 0, 0, 1 });
// Set fill color to green
cs.SetFillColor(new double[] { 0, 1, 0 });
// Draw a line from (0, 0) to (page.Width/2, page.Height/2)
// It will be drawn from top left corner to center of the page.
cs.MoveTo(0, 0);
cs.LineTo(page.Width / 2, page.Height / 2);
cs.StrokePath();
// Begin a text section
cs.BeginText();
cs.SetTextRendering(PdfTextRenderingMode.FillText);
cs.SetTextMatrix(1, 0, 0, 1, 100, 150);
cs.SetTextFontAndSize(helvetica, helvetica.Size);
// This text will appear inverted because the coordinate system is in visual mode.
byte[] binaryText = helvetica.EncodeString("Hello World");
cs.ShowText(new PdfCosBinaryString(binaryText));
cs.EndText();
// Reset coordinate system and the current graphics state to default PDF
cs.ResetPdfCoordinateSystem();
// Sets the stroke and fill colorspaces to DeviceRGB
cs.SetStrokeColorSpace(new PdfRgbColorSpace());
cs.SetFillColorSpace(new PdfRgbColorSpace());
// Set stroke color to blue
cs.SetStrokeColor(new double[] { 0, 0, 1 });
// Set fill color to green
cs.SetFillColor(new double[] { 0, 1, 0 });
// Draw a line from (0, 0) to (page.Width/2, page.Height/2)
// It will be drawn from bottom left corner to center of the page because the coordinate system has been reset to default PDF.
cs.MoveTo(0, 0);
cs.LineTo(page.Width / 2, page.Height / 2);
cs.StrokePath();
// Draw the text again
cs.BeginText();
cs.SetTextRendering(PdfTextRenderingMode.FillText);
cs.SetTextMatrix(1, 0, 0, 1, 100, 150);
cs.SetTextFontAndSize(helvetica, helvetica.Size);
// This text will appear ok.
binaryText = helvetica.EncodeString("Hello World");
cs.ShowText(new PdfCosBinaryString(binaryText));
cs.EndText();
// Restore the visual coordinate system
cs.RestoreVisualCoordinateSystem();
SampleOutputInfo[] output = new SampleOutputInfo[] { new SampleOutputInfo(document, "xfinium.pdf.sample.contentstream.pdf") };
return(output);
}
public void StopRenderer() {
fontSetup.AddToResources(new PdfFontCreator(pdfDoc), pdfDoc.getResources());
pdfDoc.outputTrailer();
pdfDoc = null;
pdfResources = null;
currentStream = null;
currentAnnotList = null;
currentPage = null;
idReferences = null;
currentFontName = String.Empty;
currentFill = null;
prevUnderlineColor = null;
prevOverlineColor = null;
prevLineThroughColor = null;
fontSetup = null;
fontInfo = null;
}
/**
* render page into PDF
*
* @param page page to render
*/
public void RenderPage(Page page) {
BodyAreaContainer body;
AreaContainer before, after, start, end;
currentStream = this.pdfDoc.makeContentStream();
body = page.getBody();
before = page.getBefore();
after = page.getAfter();
start = page.getStart();
end = page.getEnd();
this.currentFontName = "";
this.currentFontSize = 0;
this.currentLetterSpacing = Single.NaN;
currentStream.Write("BT\n");
RenderBodyAreaContainer(body);
if (before != null) {
RenderAreaContainer(before);
}
if (after != null) {
RenderAreaContainer(after);
}
if (start != null) {
RenderAreaContainer(start);
}
if (end != null) {
RenderAreaContainer(end);
}
CloseText();
// Bug fix for issue 1823
this.currentLetterSpacing = Single.NaN;
float w = page.getWidth();
float h = page.GetHeight();
currentStream.Write("ET\n");
currentPage = this.pdfDoc.makePage(
this.pdfResources, currentStream,
Convert.ToInt32(Math.Round(w/1000)),
Convert.ToInt32(Math.Round(h/1000)), page);
if (page.hasLinks() || currentAnnotList != null) {
if (currentAnnotList == null) {
currentAnnotList = this.pdfDoc.makeAnnotList();
}
currentPage.SetAnnotList(currentAnnotList);
ArrayList lsets = page.getLinkSets();
foreach (LinkSet linkSet in lsets) {
linkSet.align();
String dest = linkSet.getDest();
int linkType = linkSet.getLinkType();
ArrayList rsets = linkSet.getRects();
foreach (LinkedRectangle lrect in rsets) {
currentAnnotList.Add(this.pdfDoc.makeLink(lrect.getRectangle(),
dest, linkType).GetReference());
}
}
currentAnnotList = null;
}
else {
// just to be on the safe side
currentAnnotList = null;
}
// ensures that color is properly reset for blocks that carry over pages
this.currentFill = null;
}
public PdfContentStream makeContentStream()
{
PdfContentStream obj = new PdfContentStream(doc.NextObjectId());
obj.AddFilter(new FlateFilter());
this.objects.Add(obj);
return obj;
}
public PdfPage makePage(PdfResources resources, PdfContentStream contents,
int pagewidth, int pageheight, Page currentPage)
{
PdfPage page = new PdfPage(
resources, contents,
pagewidth, pageheight,
doc.NextObjectId());
if (currentPage != null)
{
foreach (string id in currentPage.getIDList())
{
idReferences.setInternalGoToPageReference(id, page.GetReference());
}
}
/* add it to the list of objects */
this.objects.Add(page);
page.SetParent(doc.Pages);
doc.Pages.Kids.Add(page.GetReference());
return page;
}
/// <summary>
/// Main method for running the sample.
/// </summary>
/// <param name="stream"></param>
public static SampleOutputInfo[] Run()
{
// Create the pdf document
PdfFixedDocument document = new PdfFixedDocument();
// Create a new page in the document
PdfPage page = document.Pages.Add();
PdfBrush brush = new PdfBrush(PdfRgbColor.DarkRed);
PdfStandardFont helvetica = new PdfStandardFont(PdfStandardFontFace.Helvetica, 36);
page.Graphics.DrawString("Hello World", helvetica, brush, 100, 100);
PdfContentStream cs = new PdfContentStream(page.Graphics);
// Sets the stroke and fill colorspaces to DeviceRGB
cs.SetStrokeColorSpace(new PdfRgbColorSpace());
cs.SetFillColorSpace(new PdfRgbColorSpace());
// Set stroke color to blue
cs.SetStrokeColor(new double[] { 0, 0, 1 });
// Set fill color to green
cs.SetFillColor(new double[] { 0, 1, 0 });
// Draw a line from (0, 0) to (page.Width/2, page.Height/2)
// It will be drawn from top left corner to center of the page.
cs.MoveTo(0, 0);
cs.LineTo(page.Width / 2, page.Height / 2);
cs.StrokePath();
// Begin a text section
cs.BeginText();
cs.SetTextRendering(PdfTextRenderingMode.FillText);
cs.SetTextMatrix(1, 0, 0, 1, 100, 150);
cs.SetTextFontAndSize(helvetica, helvetica.Size);
// This text will appear inverted because the coordinate system is in visual mode.
byte[] binaryText = helvetica.EncodeString("Hello World");
cs.ShowText(new PdfCosBinaryString(binaryText));
cs.EndText();
// Reset coordinate system and the current graphics state to default PDF
cs.ResetPdfCoordinateSystem();
// Sets the stroke and fill colorspaces to DeviceRGB
cs.SetStrokeColorSpace(new PdfRgbColorSpace());
cs.SetFillColorSpace(new PdfRgbColorSpace());
// Set stroke color to blue
cs.SetStrokeColor(new double[] { 0, 0, 1 });
// Set fill color to green
cs.SetFillColor(new double[] { 0, 1, 0 });
// Draw a line from (0, 0) to (page.Width/2, page.Height/2)
// It will be drawn from bottom left corner to center of the page because the coordinate system has been reset to default PDF.
cs.MoveTo(0, 0);
cs.LineTo(page.Width / 2, page.Height / 2);
cs.StrokePath();
// Draw the text again
cs.BeginText();
cs.SetTextRendering(PdfTextRenderingMode.FillText);
cs.SetTextMatrix(1, 0, 0, 1, 100, 150);
cs.SetTextFontAndSize(helvetica, helvetica.Size);
// This text will appear ok.
binaryText = helvetica.EncodeString("Hello World");
cs.ShowText(new PdfCosBinaryString(binaryText));
cs.EndText();
// Restore the visual coordinate system
cs.RestoreVisualCoordinateSystem();
SampleOutputInfo[] output = new SampleOutputInfo[] { new SampleOutputInfo(document, "xfinium.pdf.sample.contentstream.pdf") };
return output;
}
public PdfContents(PdfContentStream stream)
{
this.Value = (IPdfObject)stream;
}
public async Task SaveAsync(Stream stream)
{
var pdfDocumentCatalog = new PdfDocumentCatalog();
var pdfPageTree = new PdfPageTree();
pdfDocumentCatalog.PagesReference = pdfPageTree.Reference;
var pdfFonts = new List <PdfFont>();
var pdfFontDescriptors = new List <PdfFontDescriptor>();
var pdfCharWidthsObjects = new List <PdfCharWidths>();
var pdfFontStreams = new List <PdfFontStream>();
var fontToPdfFont = new Dictionary <Font, PdfFont>();
foreach (var font in Fonts)
{
var fontStream = new PdfFontStream();
fontStream.Filter = PdfStreamFilter.FlateDecode;
fontStream.Stream = new PdfStream(File.ReadAllBytes(font.FileName));
pdfFontStreams.Add(fontStream);
var fontInfo = font.FontInfo;
var factor = 1000.0 / fontInfo.HeadTable.UnitsPerEm;
var charWidths = new int[129];
for (int i = 0; i < 129; i++)
{
fontInfo.CharacterMapTable.Encodings.Last().Value.TryGetGlyphId(i, out var glyphIndex);
charWidths[i] = fontInfo.HorizontalMetricsTable.HMetrics[glyphIndex].AdvanceWidth; // Don't normalize
//fontInfo.CharacterMapTable.Encodings.Last().Value.TryGetGlyphId(i, out var glyphIndex);
//var blockLocation = fontInfo.IndexLocationTable.GetLocation(glyphIndex);
//var glyphHeader = fontInfo.GlyphTable.ReadHeader(blockLocation);
//charWidths[i] = glyphHeader.XMax - glyphHeader.XMin;
}
var pdfCharWidths = new PdfCharWidths {
Widths = new PdfArray(charWidths.Select(x => (PdfObject) new PdfReal(Normalize(x, factor))).ToList())
};
pdfCharWidthsObjects.Add(pdfCharWidths);
var pdfFontDescriptor = new PdfFontDescriptor
{
Ascent = new PdfInteger(Normalize(fontInfo.HorizontalHeaderTable.Ascender, factor)),
Descent = new PdfInteger(Normalize(fontInfo.HorizontalHeaderTable.Descender, factor)),
FontName = new PdfName(font.Name),
FontBBox = new PdfRectangle(Normalize(fontInfo.HeadTable.XMin, factor),
Normalize(fontInfo.HeadTable.YMin, factor),
Normalize(fontInfo.HeadTable.XMax, factor),
Normalize(fontInfo.HeadTable.YMax, factor)),
FontWeight = new PdfInteger(fontInfo.Os2Table.UsWeightClass),
AvgWidth = new PdfInteger(Normalize(fontInfo.Os2Table.XAvgCharWidth, factor)),
CapHeight = new PdfInteger(Normalize(fontInfo.Os2Table.SCapHeight, factor)),
ItalicAngle = new PdfReal(Normalize((double)fontInfo.PostScriptTable.ItalicAngle, factor)),
// MaxWidth = new PdfInteger(0), // TODO
// XHeight = new PdfInteger(0), // TODO
StemV = new PdfInteger(50), // TODO
Flags = new PdfInteger(32), // TODO
FontFile2 = new PdfIndirectObjectReference(fontStream)
};
pdfFontDescriptors.Add(pdfFontDescriptor);
var pdfFont = new PdfFont
{
Subtype = new PdfName(font.Type),
BaseFont = new PdfName(font.Name),
Encoding = new PdfName(font.Encoding.ToString()),
FontDescriptor = pdfFontDescriptor.Reference,
Widths = pdfCharWidths.Reference,
FirstChar = new PdfInteger(0),
LastChar = new PdfInteger(127)
};
pdfFonts.Add(pdfFont);
fontToPdfFont[font] = pdfFont;
}
pdfPageTree.MediaBox = new PdfRectangle(0, 0, DefaultPageWidth, DefaultPageHeight);
pdfPageTree.Resources = new PdfResources
{
Fonts = new PdfFontResources()
};
foreach (var font in Fonts)
{
pdfPageTree.Resources.Fonts.Add($"F{_nextFontId++}", fontToPdfFont[font].Reference);
}
var pdfContentStreams = new List <PdfContentStream>();
var pdfPages = new List <PdfPage>();
foreach (var page in Pages)
{
var pdfPage = new PdfPage();
pdfPages.Add(pdfPage);
pdfPage.Parent = pdfPageTree.Reference;
if (page.Unit != 1.0)
{
pdfPage.UserUnit = new PdfReal(page.Unit);
}
if (page.Width != DefaultPageWidth || page.Height != DefaultPageHeight)
{
pdfPage.MediaBox = new PdfRectangle(0, 0, page.Width, page.Height);
}
var instructions = page.Paint();
if (!string.IsNullOrWhiteSpace(instructions))
{
var pdfContentStream = new PdfContentStream
{
Stream = new PdfStream(Encoding.ASCII.GetBytes(instructions)),
// Filter = PdfStreamFilter.FlateDecode // Temporarily no using. Uncomment after development complete
};
pdfContentStreams.Add(pdfContentStream);
pdfPage.Contents = pdfContentStream.Reference;
}
}
pdfPageTree.Kids = pdfPages.Select(x => x.Reference).ToList();
var writer = new PdfWriter(stream);
await writer.WriteAsync(pdfDocumentCatalog);
await writer.WriteAsync(pdfPageTree);
foreach (var pdfFont in pdfFonts)
{
await writer.WriteAsync(pdfFont);
}
foreach (var pdfFontDescriptor in pdfFontDescriptors)
{
await writer.WriteAsync(pdfFontDescriptor);
}
foreach (var pdfCharWidths in pdfCharWidthsObjects)
{
await writer.WriteAsync(pdfCharWidths);
}
foreach (var pdfFontStream in pdfFontStreams)
{
await writer.WriteAsync(pdfFontStream);
}
foreach (var pdfPage in pdfPages)
{
await writer.WriteAsync(pdfPage);
}
foreach (var pdfContentStream in pdfContentStreams)
{
await writer.WriteAsync(pdfContentStream);
}
await writer.CloseAsync(pdfDocumentCatalog, null);
}
