/// <summary>
/// Parses a pdfx file located at the full path
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
protected virtual IPDFComponent ParseComponentAtPath(string path)
{
if (null == this.Parent)
{
throw RecordAndRaise.NullReference(Errors.ParentDocumentCannotBeNull);
}
else
{
return(this.Parent.ParseComponentAtPath(path));
}
}
/// <summary>
/// Creates a new PDFGraphics context within which drawing to the PDF Surface can take place
/// </summary>
/// <param name="writer">The writer used to write graphical instructions to</param>
/// <param name="styles">The styles of the new graphics context</param>
/// <returns>A newly instantiated graphics context</returns>
public virtual PDFGraphics CreateGraphics(PDFWriter writer, StyleStack styles, PDFContextBase context)
{
if (this.Parent == null)
{
throw RecordAndRaise.NullReference(Errors.InvalidCallToGetGraphicsForStructure);
}
else
{
return(this.Parent.CreateGraphics(writer, styles, context));
}
}
/// <summary>
/// Overrides the base implementation to registed the image data as a resource on the current container
/// </summary>
/// <param name="context"></param>
/// <param name="set"></param>
/// <param name="fullstyle"></param>
protected override void DoRegisterArtefacts(PDFLayoutContext context, PDFArtefactRegistrationSet set, Style fullstyle)
{
IPDFResourceContainer resources = this.GetResourceContainer();
if (null == resources)
{
throw RecordAndRaise.NullReference(Errors.ResourceContainerOfComponnetNotFound, "Image", this.ID);
}
PDFImageXObject xobj = this.GetImageObject(context, fullstyle);
if (null != xobj)
{
resources.Register(xobj);
}
base.DoRegisterArtefacts(context, set, fullstyle);
}
//
// IPDFTemplate Instantiate method.
//
public IEnumerable <IPDFComponent> Instantiate(int index, IPDFComponent owner)
{
if (!_initialised)
{
this.InitTemplate(this.XmlContent, this.NamespacePrefixMappings);
}
if (null == owner)
{
throw new ArgumentNullException("owner");
}
using (System.IO.StringReader sr = new System.IO.StringReader(this._toparse))
{
//Get the closest remote component
IPDFRemoteComponent remote = this.GetRemoteComponent(owner);
IPDFDocument doc = owner.Document;
IPDFComponent comp;
if (doc is IPDFTemplateParser)
{
comp = ((IPDFTemplateParser)doc).ParseTemplate(remote, sr);
}
else
{
throw RecordAndRaise.NullReference(Errors.ParentDocumentMustBeTemplateParser);
}
if (this.IsBlock)
{
if (!(comp is TemplateBlockInstance))
{
throw RecordAndRaise.InvalidCast(Errors.CannotConvertObjectToType, comp.GetType(), typeof(TemplateBlockInstance));
}
TemplateBlockInstance template = (TemplateBlockInstance)comp;
if (null != this.Style && (template is IPDFStyledComponent))
{
this.Style.MergeInto((template as IPDFStyledComponent).Style);
}
template.StyleClass = this.StyleClass;
template.ElementName = this.ElementName;
}
else
{
if (!(comp is TemplateInstance))
{
throw RecordAndRaise.InvalidCast(Errors.CannotConvertObjectToType, comp.GetType(), typeof(TemplateInstance));
}
TemplateInstance template = (TemplateInstance)comp;
if (null != this.Style && (template is IPDFStyledComponent))
{
this.Style.MergeInto((template as IPDFStyledComponent).Style);
}
template.StyleClass = this.StyleClass;
template.ElementName = this.ElementName;
}
if (comp is Component && owner is Component && this.UseDataStyleIdentifier)
{
var stem = this.DataStyleStem;
if (string.IsNullOrEmpty(stem))
{
stem = ((Component)owner).UniqueID;
}
DataStyleIdentifierVisitor visitor = new DataStyleIdentifierVisitor(stem, 1);
visitor.PushToComponents(comp as Component);
}
List <IPDFComponent> all = new List <IPDFComponent>(1);
all.Add(comp);
return(all);
}
}
protected override Resources.PDFImageXObject InitImageXObject(PDFContextBase context, Style style)
{
Document doc = this.Document;
if (null == doc)
{
throw RecordAndRaise.NullReference(Errors.ParentDocumentCannotBeNull);
}
PDFImageXObject xobj = null;
if (null != this.Data)
{
xobj = this.Document.GetImageResource(this.Data.SourcePath, this, false);
if (null == xobj)
{
string name = this.Document.GetIncrementID(PDFObjectTypes.ImageXObject);
xobj = PDFImageXObject.Load(this.Data, name);
this.Document.SharedResources.Add(xobj);
}
}
else if (String.IsNullOrEmpty(this.Source) == false)
{
string fullpath = this.Source;
try
{
//Commented so the document checks the factories, and if not found calls back to this component to map the path after.
//if (System.Uri.IsWellFormedUriString(fullpath, UriKind.Relative))
// fullpath = this.MapPath(fullpath);
xobj = this.Document.GetImageResource(fullpath, this, true);
}
catch (Exception ex)
{
throw new PDFMissingImageException(string.Format(Errors.CouldNotLoadImageFromPath, this.Source), ex);
}
if (null == xobj)
{
PDFImageData data = null;
try
{
data = this.Document.LoadImageData(this, fullpath);
}
catch (Exception ex)
{
throw new PDFMissingImageException(string.Format(Errors.CouldNotLoadImageFromPath, this.Source), ex);
}
if (null != data)
{
string name = this.Document.GetIncrementID(PDFObjectTypes.ImageXObject);
xobj = PDFImageXObject.Load(data, name);
this.Document.SharedResources.Add(xobj);
}
else
{
throw new PDFMissingImageException(string.Format(Errors.CouldNotLoadImageFromPath, this.Source));
}
}
}
return(xobj);
}
protected override Resources.PDFImageXObject InitImageXObject(PDFContextBase context, Style style)
{
Document doc = this.Document;
if (null == doc)
{
throw RecordAndRaise.NullReference(Errors.ParentDocumentCannotBeNull);
}
PDFImageXObject xobj = null;
if (null != this.Data)
{
xobj = this.Document.GetImageResource(this.Data.SourcePath, this, false);
if (null == xobj)
{
string name = this.Document.GetIncrementID(PDFObjectTypes.ImageXObject);
xobj = PDFImageXObject.Load(this.Data, name);
this.Document.SharedResources.Add(xobj);
}
}
else if (String.IsNullOrEmpty(this.Source) == false)
{
string fullpath = this.Source;
try
{
xobj = this.Document.GetImageResource(fullpath, this, true);
}
catch (Exception ex)
{
throw new PDFMissingImageException(string.Format(Errors.CouldNotLoadImageFromPath, this.Source), ex);
}
if (null == xobj)
{
PDFImageXObject data = null;
try
{
data = this.Document.LoadImageData(this, fullpath);
}
catch (Exception ex)
{
throw new PDFMissingImageException(string.Format(Errors.CouldNotLoadImageFromPath, this.Source), ex);
}
if (null != data)
{
this.Document.SharedResources.Add(data);
xobj = data;
}
else
{
throw new PDFMissingImageException(string.Format(Errors.CouldNotLoadImageFromPath, this.Source));
}
}
}
return(xobj);
}