public void TestSetProperties()
{
String inputPath = OpenXml4NetTestDataSamples.GetSampleFileName("TestPackageThumbnail.docx");
String imagePath = OpenXml4NetTestDataSamples.GetSampleFileName("thumbnail.jpg");
FileInfo outputFile = OpenXml4NetTestDataSamples.GetOutputFile("TestPackageThumbnailOUTPUT.docx");
// Open namespace
OPCPackage p = OPCPackage.Open(inputPath, PackageAccess.READ_WRITE);
FileStream fs = outputFile.OpenWrite();
p.AddThumbnail(imagePath);
// Save the namespace in the output directory
p.Save(fs);
// Open the newly Created file to check core properties saved values.
OPCPackage p2 = OPCPackage.Open(outputFile.Name, PackageAccess.READ);
if (p2.GetRelationshipsByType(PackageRelationshipTypes.THUMBNAIL)
.Size == 0)
{
Assert.Fail("Thumbnail not Added to the namespace !");
}
p2.Revert();
File.Delete(outputFile.Name);
}
/**
* Sets the Thumbnail for the document, replacing any existing
* one.
*
* @param name The filename for the thumbnail image, eg <code>thumbnail.jpg</code>
* @param imageData The inputstream to read the thumbnail image from
*/
public void SetThumbnail(String filename, Stream imageData)
{
PackagePart tPart = ThumbnailPart;
if (tPart == null)
{
// New thumbnail
pkg.AddThumbnail(filename, imageData);
}
else
{
// Change existing
String newType = ContentTypes.GetContentTypeFromFileExtension(filename);
if (!newType.Equals(tPart.ContentType))
{
throw new ArgumentException("Can't set a Thumbnail of type " +
newType + " when existing one is of a different type " +
tPart.ContentType);
}
StreamHelper.CopyStream(imageData, tPart.GetOutputStream());
}
}
