private static byte[] FillRecordWithBlips(Escher.DrawingGroupContainer dggContainer, ArrayList blipList, Hashtable bseList, Stream stream, ref int currentBlip, ref int currentLength, ref Stream currentImageStream)
{
byte[] array = null;
if (currentBlip >= blipList.Count)
{
return(null);
}
do
{
byte[] checkSum = ((Escher.Blip)blipList[currentBlip]).CheckSum;
string @string = Encoding.ASCII.GetString(checkSum);
if (bseList.ContainsKey(@string))
{
byte[] array2 = new byte[69];
((Escher.BlipStoreEntry)bseList[@string]).GetData().CopyTo(array2, 0);
((Escher.Blip)blipList[currentBlip]).GetHeaderData().CopyTo(array2, 44);
int num = currentLength + 69;
currentImageStream = dggContainer.StreamList[currentBlip].Stream;
currentImageStream.Seek(dggContainer.StreamList[currentBlip].Offset, SeekOrigin.Begin);
if ((int)(currentImageStream.Length - currentImageStream.Position + num) > 8224)
{
int num2 = 8224 - currentLength;
if (num2 <= 69)
{
stream.Write(array2, 0, num2);
if (num2 < 69)
{
array = new byte[69 - num2];
Array.Copy(array2, num2, array, 0, array.Length);
}
currentLength += num2;
}
else
{
stream.Write(array2, 0, 69);
int num3 = num2 - 69;
byte[] array3 = new byte[num3];
currentImageStream.Read(array3, 0, num3);
stream.Write(array3, 0, array3.Length);
currentLength += num2;
dggContainer.StreamList[currentBlip].Offset = (int)currentImageStream.Position;
}
}
else
{
stream.Write(array2, 0, array2.Length);
int num4 = (int)(currentImageStream.Length - currentImageStream.Position);
byte[] array4 = new byte[num4];
currentImageStream.Read(array4, 0, num4);
stream.Write(array4, 0, array4.Length);
currentLength += num4 + 69;
dggContainer.StreamList[currentBlip].Offset = -1;
currentImageStream.Close();
currentImageStream = null;
currentBlip++;
}
}
}while (currentLength < 8224 && currentBlip < blipList.Count);
return(array);
}
private static void WriteShapeProperties(Escher.DrawingGroupContainer aDggContainer, Stream stream, ref int shapePropertiesIndex, int currentLength)
{
if (shapePropertiesIndex + 8224 - currentLength < 50)
{
stream.Write(aDggContainer.ShapePropertyData, shapePropertiesIndex, 8224 - currentLength);
shapePropertiesIndex += 8224 - currentLength;
}
else
{
stream.Write(aDggContainer.ShapePropertyData, shapePropertiesIndex, 50 - shapePropertiesIndex);
shapePropertiesIndex = 50;
}
}
public void AddImage(string imageName, Stream imageData, ImageFormat format, int rowStart, double rowStartPercentage, int columnStart, double columnStartPercentage, int rowEnd, double rowEndPercentage, int columnEnd, double columnEndPercentage, string hyperlinkURL, bool isBookmarkLink)
{
if (imageData != null && imageData.Length != 0L)
{
if (m_drawingGroupContainer == null)
{
m_drawingGroupContainer = new Escher.DrawingGroupContainer();
}
uint startSPID = 0u;
ushort dgID = 0;
uint referenceIndex = m_drawingGroupContainer.AddImage(imageData, format, imageName, m_worksheets.Count - 1, out startSPID, out dgID);
Escher.ClientAnchor.SPRC clientAnchor = new Escher.ClientAnchor.SPRC((ushort)columnStart, (short)(columnStartPercentage * 1024.0), (ushort)rowStart, (short)(rowStartPercentage * 256.0), (ushort)columnEnd, (short)(columnEndPercentage * 1024.0), (ushort)rowEnd, (short)(rowEndPercentage * 256.0));
m_worksheet.AddImage(dgID, startSPID, imageName, clientAnchor, referenceIndex, hyperlinkURL, isBookmarkLink);
}
}
public static void WriteToStream(BinaryWriter output, Escher.DrawingGroupContainer dggContainer)
{
if (dggContainer != null)
{
int num = 0;
uint num2 = dggContainer.Length + 8;
uint num3 = 0u;
int size;
if (num2 > 8224)
{
size = 8224;
num = (int)num2 / 8224;
num3 = (uint)(num2 - num * 8224);
}
else
{
size = (ushort)num2;
}
RecordFactory.WriteHeader(output, 235, size);
byte[] drawingGroupContainerData = dggContainer.DrawingGroupContainerData;
int num4 = 0;
MsoDrawingGroup.WriteDGHeader(output, drawingGroupContainerData, ref num4, ref num, num3);
drawingGroupContainerData = dggContainer.DrawingGroupData;
MsoDrawingGroup.WriteDGHeader(output, drawingGroupContainerData, ref num4, ref num, num3);
drawingGroupContainerData = dggContainer.BStoreContainerData;
MsoDrawingGroup.WriteDGHeader(output, drawingGroupContainerData, ref num4, ref num, num3);
Hashtable bSEList = dggContainer.BSEList;
ArrayList blipList = dggContainer.BlipList;
int num5 = 0;
Stream stream = null;
int num6 = 0;
byte[] array = MsoDrawingGroup.FillRecordWithBlips(dggContainer, blipList, bSEList, output.BaseStream, ref num5, ref num4, ref stream);
if (array == null && num4 < 8224 && num == 1)
{
MsoDrawingGroup.WriteShapeProperties(dggContainer, output.BaseStream, ref num6, num4);
}
for (int i = 0; i < num; i++)
{
int size2 = (i != num - 1) ? 8224 : ((ushort)num3);
RecordFactory.WriteHeader(output, 60, size2);
num4 = 0;
if (array != null)
{
output.BaseStream.Write(array, 0, array.Length);
num4 += array.Length;
array = null;
}
if (stream == null)
{
array = MsoDrawingGroup.FillRecordWithBlips(dggContainer, blipList, bSEList, output.BaseStream, ref num5, ref num4, ref stream);
if (num4 < 8224)
{
MsoDrawingGroup.WriteShapeProperties(dggContainer, output.BaseStream, ref num6, num4);
}
}
else
{
int num7 = 8224 - num4;
int num8 = (int)(stream.Length - stream.Position);
if (num8 <= num7)
{
if (num8 > 0)
{
byte[] array2 = new byte[num8];
stream.Read(array2, 0, array2.Length);
output.BaseStream.Write(array2, 0, array2.Length);
num4 += array2.Length;
}
dggContainer.StreamList[num5].Offset = -1;
stream.Close();
stream = null;
num5++;
array = MsoDrawingGroup.FillRecordWithBlips(dggContainer, blipList, bSEList, output.BaseStream, ref num5, ref num4, ref stream);
if (num4 < 8224)
{
MsoDrawingGroup.WriteShapeProperties(dggContainer, output.BaseStream, ref num6, num4);
}
}
else
{
byte[] buffer = new byte[num7];
stream.Read(buffer, 0, num7);
output.BaseStream.Write(buffer, 0, num7);
dggContainer.StreamList[num5].Offset = (int)stream.Position;
}
}
}
output.BaseStream.Write(dggContainer.ShapePropertyData, num6, 50 - num6);
}
}
