/// <summary>
/// Sets the document theme
/// </summary>
/// <param name="theme">Theme package</param>
public static OpenXmlPowerToolsDocument SetTheme(WmlDocument doc, OpenXmlPowerToolsDocument themeDoc)
{
using (OpenXmlMemoryStreamDocument streamDoc = new OpenXmlMemoryStreamDocument(doc))
{
using (WordprocessingDocument document = streamDoc.GetWordprocessingDocument())
{
using (OpenXmlMemoryStreamDocument themeStream = new OpenXmlMemoryStreamDocument(themeDoc))
using (Package theme = themeStream.GetPackage())
{
// Gets the theme manager part
PackageRelationship themeManagerRelationship =
theme.GetRelationshipsByType(mainDocumentRelationshipType).FirstOrDefault();
if (themeManagerRelationship != null)
{
PackagePart themeManagerPart = theme.GetPart(themeManagerRelationship.TargetUri);
// Gets the theme main part
PackageRelationship themeRelationship =
themeManagerPart.GetRelationshipsByType(themeRelationshipType).FirstOrDefault();
if (themeRelationship != null)
{
PackagePart themePart = theme.GetPart(themeRelationship.TargetUri);
XDocument newThemeDocument = XDocument.Load(XmlReader.Create(themePart.GetStream(FileMode.Open, FileAccess.Read)));
// Removes existing theme part from document
if (document.MainDocumentPart.ThemePart != null)
{
document.MainDocumentPart.DeletePart(document.MainDocumentPart.ThemePart);
}
// Creates a new theme part
ThemePart documentThemePart = document.MainDocumentPart.AddNewPart <ThemePart>();
var embeddedItems =
newThemeDocument
.Descendants()
.Attributes(relationshipns + "embed");
foreach (PackageRelationship imageRelationship in themePart.GetRelationships())
{
// Adds an image part to the theme part and stores contents inside
PackagePart imagePart = theme.GetPart(imageRelationship.TargetUri);
ImagePart newImagePart =
documentThemePart.AddImagePart(GetImagePartType(imagePart.ContentType));
newImagePart.FeedData(imagePart.GetStream(FileMode.Open, FileAccess.Read));
// Updates relationship references into the theme XDocument
XAttribute relationshipAttribute = embeddedItems.FirstOrDefault(e => e.Value == imageRelationship.Id);
if (relationshipAttribute != null)
{
relationshipAttribute.Value = documentThemePart.GetIdOfPart(newImagePart);
}
}
documentThemePart.PutXDocument(newThemeDocument);
}
}
}
}
return(streamDoc.GetModifiedDocument());
}
}
/// <summary>
/// Sets the document theme
/// </summary>
/// <param name="theme">Theme package</param>
public void SetTheme(Package theme)
{
// Gets the theme manager part
PackageRelationship themeManagerRelationship =
theme.GetRelationshipsByType(mainDocumentRelationshipType).FirstOrDefault();
if (themeManagerRelationship != null)
{
PackagePart themeManagerPart = theme.GetPart(themeManagerRelationship.TargetUri);
// Gets the theme main part
PackageRelationship themeRelationship =
themeManagerPart.GetRelationshipsByType(themeRelationshipType).FirstOrDefault();
if (themeRelationship != null)
{
PackagePart themePart = theme.GetPart(themeRelationship.TargetUri);
XDocument newThemeDocument = XDocument.Load(XmlReader.Create(themePart.GetStream(FileMode.Open, FileAccess.Read)));
// Removes existing theme part from document
if (parentDocument.Document.MainDocumentPart.ThemePart != null)
{
parentDocument.Document.MainDocumentPart.DeletePart(parentDocument.Document.MainDocumentPart.ThemePart);
}
// Creates a new theme part
ThemePart documentThemePart = parentDocument.Document.MainDocumentPart.AddNewPart <ThemePart>();
XDocument themeDocument = parentDocument.GetXDocument(documentThemePart);
themeDocument.Add(newThemeDocument.Root);
var embeddedItems =
themeDocument
.Descendants()
.Attributes(relationshipns + "embed");
foreach (PackageRelationship imageRelationship in themePart.GetRelationships())
{
// Adds an image part to the theme part and stores contents inside
PackagePart imagePart = theme.GetPart(imageRelationship.TargetUri);
ImagePart newImagePart =
documentThemePart.AddImagePart(GetImagePartType(imagePart.ContentType));
newImagePart.FeedData(imagePart.GetStream(FileMode.Open, FileAccess.Read));
// Updates relationship references into the theme XDocument
XAttribute relationshipAttribute = embeddedItems.FirstOrDefault(e => e.Value == imageRelationship.Id);
if (relationshipAttribute != null)
{
relationshipAttribute.Value = documentThemePart.GetIdOfPart(newImagePart);
}
}
// Updates the theme part with actual contents of the theme XDocument
using (XmlWriter newThemeWriter = XmlWriter.Create(documentThemePart.GetStream(FileMode.Create, FileAccess.Write)))
themeDocument.WriteTo(newThemeWriter);
}
}
}
/// <summary>
/// Gets the document theme
/// </summary>
public Package GetTheme(string outputPath)
{
Package themePackage = null;
// Loads the theme part main file
ThemePart theme = parentDocument.Document.MainDocumentPart.ThemePart;
if (theme != null)
{
XDocument themeDocument = parentDocument.GetXDocument(theme);
// Creates the theme package (thmx file)
themePackage = Package.Open(outputPath, FileMode.Create);
// Creates the theme manager part on the new package and loads default content
PackagePart newThemeManagerPart = themePackage.CreatePart(new Uri("/theme/theme/themeManager.xml", UriKind.RelativeOrAbsolute), "application/vnd.openxmlformats-officedocument.themeManager+xml");
themePackage.CreateRelationship(newThemeManagerPart.Uri, TargetMode.Internal, "http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument");
using (XmlWriter xWriter = XmlWriter.Create(newThemeManagerPart.GetStream(FileMode.Create, FileAccess.Write)))
{
CreateEmptyThemeManager().WriteTo(xWriter);
xWriter.Flush();
}
// Creates the main theme part
PackagePart newThemePart = themePackage.CreatePart(new Uri("/theme/theme/" + theme.Uri.OriginalString.Substring(theme.Uri.OriginalString.LastIndexOf('/') + 1), UriKind.RelativeOrAbsolute), theme.ContentType);
newThemeManagerPart.CreateRelationship(newThemePart.Uri, TargetMode.Internal, theme.RelationshipType);
// Gets embeded part references
var embeddedItems =
themeDocument
.Descendants()
.Attributes(relationshipns + "embed");
foreach (IdPartPair partId in theme.Parts)
{
OpenXmlPart part = partId.OpenXmlPart;
// Creates the new media part inside the destination package
PackagePart newPart = themePackage.CreatePart(new Uri("/theme/media/" + part.Uri.OriginalString.Substring(part.Uri.OriginalString.LastIndexOf('/') + 1), UriKind.RelativeOrAbsolute), part.ContentType);
PackageRelationship relationship =
newThemePart.CreateRelationship(newPart.Uri, TargetMode.Internal, part.RelationshipType);
// Copies binary content from original part to destination part
Stream partStream = part.GetStream(FileMode.Open, FileAccess.Read);
Stream newPartStream = newPart.GetStream(FileMode.Create, FileAccess.Write);
byte[] fileContent = new byte[partStream.Length];
partStream.Read(fileContent, 0, (int)partStream.Length);
newPartStream.Write(fileContent, 0, (int)partStream.Length);
newPartStream.Flush();
// Replaces old embed part reference with the freshly created one
XAttribute relationshipAttribute = embeddedItems.FirstOrDefault(e => e.Value == theme.GetIdOfPart(part));
if (relationshipAttribute != null)
{
relationshipAttribute.Value = relationship.Id;
}
}
// Writes the updated theme XDocument into the destination package
using (XmlWriter newThemeWriter = XmlWriter.Create(newThemePart.GetStream(FileMode.Create, FileAccess.Write)))
themeDocument.WriteTo(newThemeWriter);
//themePackage.Flush();
themePackage.Close();
}
return(themePackage);
}
