public void InclChunk_Theory(string file, DjvuJsonDocument doc)
{
byte[] buffer = null;
using (FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read))
{
buffer = new byte[fs.Length];
int result = fs.Read(buffer, 0, buffer.Length);
Assert.Equal <long>(fs.Length, result);
}
Mock <IDjvuDocument> docMock = new Mock <IDjvuDocument>();
Mock <IDjvuElement> parentMock = new Mock <IDjvuElement>();
IDjvuElement parent = parentMock.Object;
IDjvuDocument document = docMock.Object;
using (MemoryStream ms = new MemoryStream(buffer, false))
using (IDjvuReader reader = new DjvuReader(ms))
{
InclChunk chunk = new InclChunk(reader, parent, document, "INCL", buffer.Length);
Assert.False(chunk.IsInitialized);
// Support multiple INCL chunks in single DjvuChunk
var testChunk = doc.Data.Pages[0].Children
.Where(x => x.ID == "INCL" && x.Name == chunk.IncludeID)
.FirstOrDefault <DjvuJsonDocument.Chunk>();
Assert.NotNull(testChunk);
Assert.Equal(testChunk.Name, chunk.IncludeID);
}
}
public void Palette_Theory(string file, DjvuJsonDocument doc)
{
byte[] buffer = null;
using (FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read))
{
buffer = new byte[fs.Length];
int result = fs.Read(buffer, 0, buffer.Length);
Assert.Equal <long>(fs.Length, result);
}
Mock <IDjvuDocument> docMock = new Mock <IDjvuDocument>();
Mock <IDjvuElement> parentMock = new Mock <IDjvuElement>();
IDjvuElement parent = parentMock.Object;
IDjvuDocument document = docMock.Object;
using (MemoryStream ms = new MemoryStream(buffer, false))
using (IDjvuReader reader = new DjvuReader(ms))
{
FGbzChunk chunk = new FGbzChunk(reader, parent, document, "FGBZ", buffer.Length);
Assert.False(chunk.IsInitialized);
var testChunk = doc.Data.Pages[0].Children
.Where(x => x.ID == "FGbz")
.FirstOrDefault <DjvuJsonDocument.Chunk>();
Assert.Equal <int>((int)testChunk?.Version.Value, chunk.Version);
Assert.Equal <int>((int)testChunk.Colors.Value, (int)chunk.Palette?.PaletteColors?.Length);
}
}
/// <summary>
/// IFFChunk constructor
/// </summary>
/// <param name="reader"></param>
/// <param name="parent"></param>
/// <param name="document"></param>
/// <param name="chunkID"></param>
/// <param name="length"></param>
public DjvuNode(IDjvuReader reader, IDjvuElement parent, IDjvuDocument document,
string chunkID = "", long length = 0)
{
Reader = reader;
Parent = parent;
Document = document;
Length = length;
ChunkID = chunkID;
DataOffset = reader.Position;
}
public Bookmark(IDjvuDocument document, INavmChunk navm, Bookmark parent, string name, string url, Bookmark[] children)
{
InitializeReferences(document, navm, parent);
Name = name;
Url = url;
Children = children;
LoadReferencedPage();
}
public DjvuImage(IDjvuPage page)
{
if (page == null)
{
throw new DjvuArgumentNullException(nameof(page));
}
_Page = page;
_Page.PropertyChanged += PagePropertyChanged;
_Document = page.Document;
}
internal void BuildNavigation(IDjvuDocument document)
{
List <Bookmark> bookmarks = new List <Bookmark>();
for (int x = 0; x < document.Pages.Count; x++)
{
IDjvuPage page = document.Pages[x];
int pageNum = x + 1;
bookmarks.Add(new Bookmark(document, null, null,
string.Format("Page {0}", pageNum), string.Format("#{0}", pageNum), new Bookmark[0]));
}
Bookmarks = bookmarks;
}
internal void InitializeReferences(IDjvuDocument document, INavmChunk navm, Bookmark parent)
{
Document = document;
Parent = parent;
if (navm != null)
{
NavmNode = navm;
}
else if (parent != null)
{
NavmNode = parent.NavmNode;
}
else if (document != null)
{
NavmNode = document.RootForm.Children
.Where(x => x.ChunkType == ChunkType.Navm)
.FirstOrDefault() as INavmChunk;
}
}
public void ImageTest()
{
Mock <IDjvuReader> readerMock = new Mock <IDjvuReader>();
readerMock.SetupAllProperties();
readerMock.Object.Position = 1024;
Mock <IDjvuDocument> docMock = new Mock <IDjvuDocument>();
Mock <IDjvuElement> parentMock = new Mock <IDjvuElement>();
IDjvuReader reader = readerMock.Object;
IDjvuElement parent = parentMock.Object;
IDjvuDocument document = docMock.Object;
SjbzChunk chunk = new SjbzChunk(reader, parent, document, "SJBZ", 2048);
Assert.False(chunk.IsInitialized);
chunk.ReadData(reader);
Assert.Equal <long>(reader.Position, chunk.DataOffset + chunk.Length);
}
public DjvuPage(int pageNumber, IDjvuDocument document, DirmComponent header,
ITH44Chunk thumbnail, IReadOnlyList<IDjviChunk> includedItems, DjvuFormElement form)
{
PageNumber = pageNumber;
Document = document;
Header = header;
Thumbnail = thumbnail;
IncludeFiles = includedItems;
PageForm = form;
_DjvuImage = new DjvuImage(this);
PropertyChanged += DjvuPage_PropertyChanged;
if (form.ChunkType != ChunkType.BM44Form && form.ChunkType != ChunkType.PM44Form && Info == null)
{
throw new DjvuFormatException(
$"Page {PageNumber} does not have associated Info chunk." +
"Page is invalid and can not be displayed");
}
else if (form.ChunkType == ChunkType.BM44Form || form.ChunkType == ChunkType.PM44Form)
{
// TODO: Debug log or assert
}
}
public void FGbzChunkTest001()
{
Mock <IDjvuReader> readerMock = new Mock <IDjvuReader>();
readerMock.Setup <long>(x => x.Position).Returns(1024);
// readerMock.SetupAllProperties();
Mock <IDjvuDocument> docMock = new Mock <IDjvuDocument>();
Mock <IDjvuElement> parentMock = new Mock <IDjvuElement>();
IDjvuReader reader = readerMock.Object;
IDjvuElement parent = parentMock.Object;
IDjvuDocument document = docMock.Object;
FGbzChunk chunk = new FGbzChunk(reader, parent, document, "FGBZ", 2048);
Assert.False(chunk.IsInitialized);
Assert.Equal <long>(1024, chunk.DataOffset);
Assert.Equal <long>(2048, chunk.Length);
Assert.Same(reader, chunk.Reader);
Assert.Same(parent, chunk.Parent);
Assert.Same(document, chunk.Document);
}
public void CreateDecodedDjvuNode_Theory(IDjvuReader reader, IDjvuDocument rootDocument,
IDjvuElement parent, ChunkType chunkType,
string chunkID = "", long length = 0)
{
if (reader == null)
{
Mock <IDjvuReader> readerMock = new Mock <IDjvuReader>();
readerMock.Setup <long>(x => x.Position).Returns(1024);
reader = readerMock.Object;
}
if (ChunkType.Info == chunkType)
{
length = 10;
}
IDjvuNode node = DjvuParser.CreateDecodedDjvuNode(reader, rootDocument, parent, chunkType, chunkID, length);
Assert.NotNull(node);
Assert.Equal <ChunkType>(chunkType, node.ChunkType);
Assert.Equal(chunkID, node.ChunkID);
Assert.Equal <long>(length, node.Length);
Assert.Equal <long>(reader.Position, node.DataOffset);
}
public static DjvuFormElement GetRootForm(IDjvuReader reader, IDjvuElement parent, IDjvuDocument document)
{
string formStr = reader.ReadUTF8String(4);
// use of uint in Djvu Format limits file read size to 4 GB - should be long (int64)
int length = (int)reader.ReadUInt32BigEndian();
string formType = reader.ReadUTF8String(4);
reader.Position -= 4;
ChunkType type = DjvuParser.GetFormType(formType);
DjvuFormElement formObj = (DjvuFormElement)DjvuParser.CreateDecodedDjvuNode(reader, document, parent, type, formType, length);
return(formObj);
}
/// <summary>
/// Builds the appropriate chunk for the ID
/// </summary>
/// <returns></returns>
public static IDjvuNode CreateDecodedDjvuNode(IDjvuReader reader, IDjvuDocument rootDocument,
IDjvuElement parent, ChunkType chunkType,
string chunkID = "", long length = 0)
{
IDjvuNode result = null;
switch (chunkType)
{
case ChunkType.Djvm:
result = new DjvmChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Djvu:
result = new DjvuChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Djvi:
result = new DjviChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Thum:
result = new ThumChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Dirm:
result = new DirmChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Navm:
result = new NavmChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Anta:
result = new AntaChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Antz:
result = new AntzChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Txta:
result = new TxtaChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Txtz:
result = new TxtzChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Djbz:
result = new DjbzChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Sjbz:
result = new SjbzChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.FG44:
result = new FG44Chunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.BG44:
result = new BG44Chunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.TH44:
result = new TH44Chunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.BM44:
result = new BM44Chunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.BM44Form:
result = new BM44Form(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.PM44:
result = new PM44Chunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.PM44Form:
result = new PM44Form(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Wmrm:
result = new WmrmChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.FGbz:
result = new FGbzChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Info:
result = new InfoChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Incl:
result = new InclChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.BGjp:
result = new BGjpChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.FGjp:
result = new FGjpChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Smmr:
result = new SmmrChunk(reader, parent, rootDocument, chunkID, length);
break;
case ChunkType.Cida:
result = new CidaChunk(reader, parent, rootDocument, chunkID, length);
break;
default:
result = new UnknownChunk(reader, parent, rootDocument, chunkID, length);
break;
}
return(result);
}
public DocumentNavigator(IDjvuDocument document)
{
BuildNavigation(document);
}
public Bookmark(IDjvuReader reader, IDjvuDocument document, INavmChunk navm, Bookmark parent)
{
InitializeReferences(document, navm, parent);
DecodeBookmarkData(reader);
LoadReferencedPage();
}
public DjvuFormElement(IDjvuReader reader, IDjvuElement parent, IDjvuDocument document,
string chunkID = "", long length = 0)
: base(reader, parent, document, chunkID, length)
{
InitializeInternal();
}
public AntaChunk(IDjvuReader reader, IDjvuElement parent, IDjvuDocument document,
string chunkID = "", long length = 0)
: base(reader, parent, document, chunkID, length)
{
}
public UnknownChunk(IDjvuReader reader, IDjvuElement parent, IDjvuDocument document,
string chunkID = "", long length = 0)
: base(reader, parent, document, chunkID, length)
{
// Nothing
}