protected override void RenderImageInformation(PDFContextBase context, PDFWriter writer)
{
base.RenderImageInformation(context, writer);
if (this.AlphaData != null)
{
PDFObjectRef alpha = this.RenderAlpaImageData(context, writer);
writer.WriteDictionaryObjectRefEntry("SMask", alpha);
}
}
public void SetAlphaFilteredData(IStreamFilter[] filters, byte[] data, PDFContextBase context)
{
if (null == data)
{
throw new ArgumentNullException("data");
}
this._filteredAlpha = data;
}
/// <summary>
/// Implementation method for the IPDFImageComponent to return the image data in a PDFImageXObject instance.
/// </summary>
/// <returns></returns>
public virtual PDFImageXObject GetImageObject(PDFContextBase context, Style fullstyle)
{
if (null == this.XObject)
{
bool log = context.ShouldLogDebug;
if (log)
{
context.TraceLog.Begin("Image", "Initializing and loading image for component " + this.UniqueID);
}
try
{
this.XObject = this.InitImageXObject(context, fullstyle);
}
catch (PDFMissingImageException ex)
{
if (this.AllowMissingImages && this.Document.RenderOptions.AllowMissingImages)
{
context.TraceLog.Add(TraceLevel.Error, "Image", "Missing Image replaced: " + ex.Message);
this.Visible = false;
}
else
{
throw;
}
}
catch (PDFException)
{
throw;
}
catch (Exception ex)
{
if (context.Conformance == ParserConformanceMode.Lax)
{
context.TraceLog.Add(TraceLevel.Error, "Load of image data failed. " + ex.Message, ex);
}
else
{
throw new PDFException(string.Format(Errors.CouldNotInitializeTheImageForComponent, this.UniqueID, ex.Message), ex);
}
}
if (log)
{
if (null == this.XObject)
{
context.TraceLog.End("Image", "No image loaded for component " + this.UniqueID);
}
else
{
context.TraceLog.End("Image", "Initialized and loaded image '" + this.XObject.ToString() + "' for component " + this.UniqueID);
}
}
}
return(this.XObject);
}
private void AssertInnerStyles(PDFContextBase context)
{
if (!string.IsNullOrEmpty(this.Contents))
{
if (null == this._innerItems)
{
this._innerItems = CreateInnerStyles(context);
}
}
}
protected virtual string DoLoadRemoteReference(string path, PDFContextBase context)
{
//TODO: Use the document for any client web requests.
//context.Document.LoadRemoteResource(path, context, new RemoteResourceRequest(DoLoadReferenceResult));
this.LoadedSource = path;
var request = System.Net.HttpWebRequest.Create(path);
using (var result = request.GetResponse())
return(this.DoLoadReferenceResult(result, path, context));
}
protected virtual bool ShouldApplyFilters(PDFContextBase context)
{
if (this.HasFilter)
{
if (context.Compression == OutputCompressionType.FlateDecode || this.IsPrecompressedData)
{
return(true);
}
}
return(false);
}
protected override IEnumerable <IPDFComponent> DoParseContents(PDFContextBase context)
{
if (!string.IsNullOrEmpty(this.HRef))
{
return(GetContentFromHRef(this.HRef, context));
}
else
{
return(base.DoParseContents(context));
}
}
protected virtual void UpdateShapeBounds(PDFContextBase context)
{
var bounds = this.GetBounds();
if (bounds != PDFRect.Empty)
{
this.X = bounds.X;
this.Y = bounds.Y;
this.Width = bounds.Width;
this.Height = bounds.Height;
}
}
protected virtual PDFObjectRef RenderShadingDictionary(PDFContextBase context, PDFWriter writer)
{
PDFPoint offset = new PDFPoint(this.Start.X, this.Start.Y);// this.Start;
PDFSize size = this.Size;
PDFSize graphicsSize = new PDFSize(size.Width + offset.X, size.Height + offset.Y);
var func = this._descriptor.GetGradientFunction(offset, size);
var coords = GetCoords(offset, size, _descriptor.Size, _descriptor.XCentre, _descriptor.YCentre);
writer.BeginDictionaryEntry("Shading");
writer.BeginDictionary();
writer.WriteDictionaryNumberEntry("ShadingType", (int)ShadingType.Radial);
writer.WriteDictionaryNameEntry("ColorSpace", "DeviceRGB");
writer.WriteDictionaryBooleanEntry("AntiAlias", true);
writer.BeginDictionaryEntry("BBox");
writer.WriteArrayRealEntries(true, offset.X.PointsValue,
offset.Y.PointsValue,
offset.X.PointsValue + size.Width.PointsValue,
offset.Y.PointsValue + size.Height.PointsValue);
writer.EndDictionaryEntry();
writer.BeginDictionaryEntry("Coords");
writer.WriteArrayRealEntries(true, coords);
writer.EndDictionaryEntry();
writer.BeginDictionaryEntry("Extend");
writer.BeginArray();
writer.BeginArrayEntry();
writer.WriteBooleanS(true);
writer.EndArrayEntry();
writer.BeginArrayEntry();
writer.WriteBooleanS(true);
writer.EndArrayEntry();
writer.EndArray();
writer.EndDictionaryEntry();
if (null != func)
{
writer.BeginDictionaryEntry("Function");
func.WriteFunctionDictionary(context, writer);
writer.EndDictionaryEntry();
}
writer.EndDictionary();//shading
return(null);
}
protected StyleCollection CreateInnerStyles(string content, PDFContextBase context)
{
var collection = new StyleCollection();
if (context.TraceLog.ShouldLog(TraceLevel.Verbose))
{
context.TraceLog.Add(TraceLevel.Verbose, "HTML", "Parsing the css selectors from string for link " + this.UniqueID);
}
this.ParseCssStyles(collection, content, context);
return(collection);
}
public override VisualComponent DoBuildItemField(PDFContextBase context)
{
Link link = new Link();
link.Action = LinkAction.Uri;
link.File = this.LinkUrl;
Label label = new Label();
label.Text = string.IsNullOrEmpty(this.LinkText) ? this.LinkUrl : this.LinkText;
link.Contents.Add(label);
return(link);
}
private void InitAndLoadRoot(Component built, PDFContextBase context)
{
if (context.TraceLog.ShouldLog(TraceLevel.Debug))
{
context.TraceLog.Add(TraceLevel.Debug, "DataGrid", "Initializing and loading root component before binding");
}
PDFTraceLog log = context.TraceLog;
PDFInitContext init = new PDFInitContext(context.Items, log, context.PerformanceMonitor, this.Document);
PDFLoadContext load = new PDFLoadContext(context.Items, log, context.PerformanceMonitor, this.Document);
built.Init(init);
built.Load(load);
}
public CSSStyleParser(string content, PDFContextBase context)
{
this.Content = content;
this._err = new List <CSSParsingError>();
this.Context = context;
if (null == context)
{
this.Log = new Logging.DoNothingTraceLog(TraceRecordLevel.Off);
}
else
{
this.Log = context.TraceLog;
}
}
public override void AddContent(Component component, PDFContextBase context)
{
var doc = component.Document;
if (null == _parsedGroup)
{
_parsedGroup = new StyleGroup();
foreach (var style in this._parsed)
{
_parsedGroup.Styles.Add(style);
}
doc.Styles.Add(_parsedGroup);
}
}
protected virtual PDFAcrobatFormFieldWidget GetFieldEntry(PDFContextBase context)
{
if (string.IsNullOrEmpty(this.Name))
{
if (string.IsNullOrEmpty(this.ID))
{
this.ID = this.GetIncrementID(this.Type);
}
this.Name = this.UniqueID;
}
PDFAcrobatFormFieldWidget entry = new PDFAcrobatFormFieldWidget(this.Name, this.Value, this.DefaultValue, this.FieldType, this.Options);
return(entry);
}
/// <summary>
/// renders this instance to the output writer if the resource has been registered.
/// Resources are only rendered once, so if this resource has already been rendered it simply returns the previous reference
/// </summary>
/// <param name="context">The context associated with the rendering</param>
/// <param name="writer">The writer to output any instructions to</param>
/// <returns>A PDFObject reference for this resource</returns>
/// <remarks>In order to ensure that this resource is output, then call the RegisterUse with a resource collection.</remarks>
public PDFObjectRef EnsureRendered(PDFContextBase context, PDFWriter writer)
{
if (this.Registered)
{
if (null == this.RenderReference)
{
this.RenderReference = this.DoRenderToPDF(context, writer);
}
return(this.RenderReference);
}
else
{
return(null);
}
}
protected virtual string DoLoadRemoteReference(string path, PDFContextBase context)
{
//TODO: Use the document for any client web requests.
//context.Document.LoadRemoteResource(path, context, new RemoteResourceRequest(DoLoadReferenceResult));
string content;
HttpClient client = null;
bool dispose = false;
try
{
this.LoadedSource = path;
client = this.GetServiceClient();
if (null == client)
{
client = new HttpClient();
dispose = true;
}
lock (context.Document)
{
var task = client.GetStreamAsync(path);
var awaiter = task.GetAwaiter();
using (var response = task.Result)
content = this.DoLoadReferenceResult(response, path, context);
}
}
catch (Exception ex)
{
content = string.Empty;
if (context.Conformance == ParserConformanceMode.Lax)
{
context.TraceLog.Add(TraceLevel.Error, "HTML", "Could not load link href the response from '" + path + "'", ex);
}
else
{
throw;
}
}
finally
{
if (null != client && dispose)
{
client.Dispose();
}
}
return(content);
}
protected override PDFObjectRef DoRenderToPDF(PDFContextBase context, PDFWriter writer)
{
PDFObjectRef oref = writer.BeginObject();
writer.BeginDictionaryS();
writer.WriteDictionaryNameEntry("Type", "ExtGState");
foreach (PDFName name in this.States.Keys)
{
writer.BeginDictionaryEntry(name);
this.States[name].WriteData(writer);
writer.EndDictionaryEntry();
}
writer.EndDictionary();
writer.EndObject();
return(oref);
}
public override void WriteFunctionDictionary(PDFContextBase context, PDFWriter writer)
{
writer.BeginDictionary();
writer.WriteDictionaryNumberEntry("FunctionType", 3);
writer.BeginDictionaryEntry("Domain");
writer.WriteArrayRealEntries(this.DomainStart, this.DomainEnd);
writer.EndDictionaryEntry();
//The bounds is the function extents of the functions
writer.BeginDictionaryEntry("Bounds");
writer.BeginArray();
foreach (var boundary in this.Boundaries)
{
writer.BeginArrayEntry();
writer.WriteRealS(boundary.Bounds);
writer.EndArrayEntry();
}
writer.EndArray();
writer.EndDictionaryEntry();
//Write the array of function 2 (Axial aka Linear between 2 colours)
List <double> encodes = new List <double>();
writer.BeginDictionaryEntry("Functions");
writer.BeginArray();
foreach (var func in this.Functions)
{
writer.BeginArrayEntry();
func.WriteFunctionDictionary(context, writer);
writer.EndArrayEntry();
//May need to change these values
encodes.Add(0);
encodes.Add(1);
}
writer.EndArray();
writer.EndDictionaryEntry();
//Write the encodes for each of the functions 0 1 in a single array
writer.BeginDictionaryEntry("Encode");
writer.WriteArrayRealEntries(encodes.ToArray());
writer.EndDictionaryEntry();
writer.EndDictionary();
}
protected virtual void BuildContents(PDFContextBase context)
{
if (this.LayoutType != FieldLayoutType.ValueOnly)
{
Label label = new Label();
label.Text = this.FieldLabel;
if (!string.IsNullOrEmpty(this.LabelPostFix) && !string.IsNullOrEmpty(this.FieldLabel))
{
label.Text += this.LabelPostFix;
}
label.StyleClass = this.LabelClass;
this.Contents.Add(label);
this._labelItem = label;
if (this.LayoutType == FieldLayoutType.Above)
{
label.PositionMode = Drawing.PositionMode.Block;
}
else if (this.LayoutType == FieldLayoutType.NextTo)
{
this.PositionMode = Drawing.PositionMode.Block;
label.PositionMode = Drawing.PositionMode.Block;
this.ColumnCount = 2;
this.Contents.Add(new ColumnBreak());
}
else
{
label.PositionMode = Drawing.PositionMode.Inline;
}
}
VisualComponent field = this.DoBuildItemField(context);
field.StyleClass = this.ValueClass;
this.Contents.Add(field);
if (this.LayoutType == FieldLayoutType.Inline)
{
field.PositionMode = Drawing.PositionMode.Inline;
}
else
{
field.PositionMode = Drawing.PositionMode.Block;
}
}
private PDFObjectRef RenderAlpaImageData(PDFContextBase context, PDFWriter writer)
{
context.TraceLog.Add(TraceLevel.Debug, "IMAGE", "Rendering image alpha mask");
PDFObjectRef mask = writer.BeginObject();
writer.BeginDictionary();
writer.WriteDictionaryNameEntry("Type", "XObject");
writer.WriteDictionaryNameEntry("Subtype", "Image");
writer.WriteDictionaryNumberEntry("Width", this.PixelWidth);
writer.WriteDictionaryNumberEntry("Height", this.PixelHeight);
//writer.WriteDictionaryNumberEntry("Length", this.AlphaData.LongLength);
writer.WriteDictionaryNameEntry("ColorSpace", "DeviceGray");
writer.WriteDictionaryNumberEntry("BitsPerComponent", 8);
this.WriteFilterNames(context, writer);
//writer.EndDictionary();
writer.BeginStream(mask);
byte[] data;
if (this.HasFilter && this.ShouldApplyFilters(context))
{
data = this.GetAlphaFilteredData(this.Filters, context);
if (null == data)
{
data = this.ApplyFiltersToData(this.AlphaData, context);
this.SetAlphaFilteredData(this.Filters, data, context);
}
}
else
{
data = this.AlphaData;
}
writer.WriteRaw(data, 0, data.Length);
writer.EndStream();
//inserted 15/01/15 - Write the filtered length, not the actua image data length to the dictionary.
writer.WriteDictionaryNumberEntry("Length", data.Length);
writer.EndDictionary();
//end of insert
writer.EndObject();
return(mask);
}
protected byte[] ApplyFiltersToData(byte[] data, PDFContextBase context)
{
if (this.ShouldApplyFilters(context))
{
int origlength = data.Length;
if (context.ShouldLogDebug)
{
context.TraceLog.Add(TraceLevel.Debug, "ImageData", "Applying filters to image data for '" + this.SourcePath + "'. Original length = " + origlength);
}
if (this.Filters.Length == 1)
{
data = this.Filters[0].FilterStream(data);
}
else
{
for (int i = 0; i < this.Filters.Length; i++)
{
if (context.ShouldLogDebug)
{
context.TraceLog.Add(TraceLevel.Debug, "ImageData", "Applying filter '" + this.Filters[i].FilterName + "' to image data.");
}
data = this.Filters[i].FilterStream(data);
}
}
int finallength = data.Length;
if (context.ShouldLogDebug)
{
context.TraceLog.Add(TraceLevel.Debug, "ImageData", "Applied all filters to image data for '" + this.SourcePath + "'. Final length = " + finallength);
}
else if (context.ShouldLogMessage)
{
context.TraceLog.Add(TraceLevel.Message, "ImageData", "Filters applied to image data for '" + this.SourcePath + "', and size has gone from " + origlength + " to " + finallength);
}
}
else if (context.ShouldLogDebug)
{
context.TraceLog.Add(TraceLevel.Debug, "ImageData", "Should not apply filters to image data for '" + this.SourcePath + "', returning original data");
}
return(data);
}
private bool TryGetFont(IPDFDocument doc, PDFContextBase context, out PDFFontDefinition definition)
{
System.Drawing.FontStyle style = System.Drawing.FontStyle.Regular;
if (this.FontBold)
{
style |= System.Drawing.FontStyle.Bold;
}
if (this.FontItalic)
{
style |= System.Drawing.FontStyle.Italic;
}
string name = this.FontFamily.FamilyName;
PDFFontFactory.TryEnsureFont(doc, context, this.Source, name, style, out definition);
return(null != definition);
}
internal PDFObjectRef Render(PDFName name, PDFContextBase context, PDFWriter writer)
{
if (context.ShouldLogDebug)
{
context.TraceLog.Begin(TraceLevel.Message, "Image Data", "Rendering image data for '" + name.ToString() + "'");
}
PDFObjectRef renderref = writer.BeginObject(name.Value);
writer.BeginDictionaryS();
writer.WriteDictionaryNameEntry("Name", name.Value);
writer.WriteDictionaryNameEntry("Type", "XObject");
writer.WriteDictionaryNameEntry("Subtype", "Image");
RenderImageInformation(context, writer);
//writer.EndDictionary(); //- commented for data length fix
writer.BeginStream(renderref);
int length = this.RenderImageStreamData(context, writer);
writer.EndStream();
//Added for Data Length fix HRB 15/01/2015
writer.WriteDictionaryNumberEntry("Length", length);
writer.EndDictionary();
//End of add
writer.EndObject();
if (context.ShouldLogDebug)
{
context.TraceLog.End(TraceLevel.Message, "Image Data", "Completed render of the image data for '" + name + "' with source " + this.SourcePath);
}
else
{
context.TraceLog.Add(TraceLevel.Message, "Image Data", "Rendered the image data for '" + name.ToString() + "' with source " + this.SourcePath);
}
return(renderref);
}
private bool ShouldAddContent(OutputFormat format, PDFContextBase context, out HTMLLinkType type)
{
type = HTMLLinkType.Other;
//If we have a media value and it's not for this format, then we don't add them
if (null != Media && this.Media.IsMatchedTo(format) == false)
{
return(false);
}
if (this.Visible == false)
{
return(false);
}
if (string.IsNullOrEmpty(this.Relationship))
{
if (context.Conformance == ParserConformanceMode.Lax)
{
context.TraceLog.Add(TraceLevel.Error, "HTML", "The 'rel'ationship attribute is required on a html 'link' tag.");
return(false);
}
else
{
throw new PDFParserException("The 'rel'ationship attribute is required on a html 'link' tag.");
}
}
if (this.Relationship.Equals("stylesheet", StringComparison.OrdinalIgnoreCase) || string.IsNullOrEmpty(this.Relationship))
{
type = HTMLLinkType.CSS;
return(true);
}
else if (this.Relationship.Equals("import"))
{
type = HTMLLinkType.Html;
return(true);
}
else
{
return(false);
}
}
protected override Resources.PDFImageXObject InitImageXObject(PDFContextBase context, Style style)
{
Document doc = this.Document;
if (null == doc)
{
throw new NullReferenceException(Errors.ParentDocumentCannotBeNull);
}
if (null != this.Data)
{
_xobj = null;
if (!string.IsNullOrEmpty(this.ImageKey))
{
_xobj = this.Document.GetImageResource(this.ImageKey, this, false);
}
if (null == _xobj)
{
string name;
if (string.IsNullOrEmpty(this.ImageKey))
{
name = "DataImage_" + this.Document.GetIncrementID(PDFObjectTypes.ImageXObject);
}
else
{
name = this.ImageKey;
}
System.ComponentModel.TypeConverter BitmapConverter = TypeDescriptor.GetConverter(typeof(Bitmap));
Bitmap img = (Bitmap)BitmapConverter.ConvertFrom(this.Data.Raw);
PDFImageData data = PDFImageData.LoadImageFromBitmap(name, img, this.Compress);
_xobj = PDFImageXObject.Load(data, name);
this.Document.SharedResources.Add(_xobj);
}
}
return(_xobj);
}
protected override PDFObjectRef DoRenderToPDF(PDFContextBase context, PDFWriter writer)
{
PDFObjectRef oref = writer.BeginObject(this.Name.Value);
writer.BeginDictionary();
writer.WriteDictionaryNameEntry("Type", "Pattern");
writer.WriteDictionaryNumberEntry("PatternType", (int)this.PatternType);
//Actual shading dictionary
var shading = this.RenderShadingDictionary(context, writer);
if (null != shading)
{
writer.WriteDictionaryObjectRefEntry("Shading", shading);
}
writer.EndDictionary();
writer.EndObject();
return(oref);
}
public override void WriteFunctionDictionary(PDFContextBase context, PDFWriter writer)
{
writer.BeginDictionary();
writer.WriteDictionaryNumberEntry("FunctionType", 2);
writer.BeginDictionaryEntry("Domain");
writer.WriteArrayRealEntries(this.DomainStart, this.DomainEnd);
writer.EndDictionaryEntry();
writer.BeginDictionaryEntry("C0");
writer.WriteArrayRealEntries(this.ColorZero.Red.Value, this.ColorZero.Green.Value, this.ColorZero.Blue.Value);
writer.EndDictionaryEntry();
writer.BeginDictionaryEntry("C1");
writer.WriteArrayRealEntries(this.ColorOne.Red.Value, this.ColorOne.Green.Value, this.ColorOne.Blue.Value);
writer.EndDictionaryEntry();
writer.WriteDictionaryRealEntry("N", this.Exponent);
writer.EndDictionary(); //function
}
public override void RenderWidthsArrayToPDF(PDFContextBase context, PDFWriter writer)
{
if (context.ShouldLogDebug)
{
context.TraceLog.Add(TraceLevel.Debug, "PDFFontWidths", "Width information will be rendered as a CID lookup set");
}
List <char> keys = new List <char>(this._char2offset.Keys);
keys.Sort();
writer.BeginArray();
SortedDictionary <int, int> glyph2width = new SortedDictionary <int, int>();
foreach (WidthMetric met in this._char2offset.Values)
{
glyph2width[met.Glyph] = met.Width;
}
if (context.ShouldLogDebug)
{
context.TraceLog.Add(TraceLevel.Debug, "PDFFontWidths", "CID Lookup built with glyph widths");
}
//Writes the used characters as [c[w] c[w] c[w]]
//TODO: Improve rendering
foreach (int g in glyph2width.Keys)
{
int w = glyph2width[g];
writer.WriteNumber(g);
writer.BeginArray();
writer.WriteNumber(w);
writer.EndArray();
}
writer.EndArray();
if (context.ShouldLogDebug)
{
context.TraceLog.Add(TraceLevel.Debug, "PDFFontWidths", glyph2width.Count.ToString() + " widths written as CID lookup set");
}
}
protected void SetCachedFilteredData(IStreamFilter[] filters, byte[] data, PDFContextBase context)
{
if (null == filters)
{
throw new ArgumentNullException("filters");
}
else if (filters.Length == 0)
{
throw new ArgumentOutOfRangeException("filters");
}
if (null == data)
{
throw new ArgumentNullException("data");
}
string key = GetFullFilterCacheKey(filters);
this._filtercachekey = key;
this._filterdata = data;
}
