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;
}
}
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))
{
continue;
}
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);
}
internal static void WriteToStream(BinaryWriter output, Escher.DrawingGroupContainer dggContainer)
{
if (dggContainer == null)
{
return;
}
int numberOfContinues = 0;
uint num = dggContainer.Length + 8;
uint num2 = 0u;
int size;
if (num > 8224)
{
size = 8224;
numberOfContinues = (int)num / 8224;
num2 = (uint)(num - numberOfContinues * 8224);
}
else
{
size = (ushort)num;
}
RecordFactory.WriteHeader(output, 235, size);
byte[] drawingGroupContainerData = dggContainer.DrawingGroupContainerData;
int currentLength = 0;
WriteDGHeader(output, drawingGroupContainerData, ref currentLength, ref numberOfContinues, num2);
drawingGroupContainerData = dggContainer.DrawingGroupData;
WriteDGHeader(output, drawingGroupContainerData, ref currentLength, ref numberOfContinues, num2);
drawingGroupContainerData = dggContainer.BStoreContainerData;
WriteDGHeader(output, drawingGroupContainerData, ref currentLength, ref numberOfContinues, num2);
Hashtable bSEList = dggContainer.BSEList;
ArrayList blipList = dggContainer.BlipList;
int currentBlip = 0;
Stream currentImageStream = null;
int shapePropertiesIndex = 0;
byte[] array = FillRecordWithBlips(dggContainer, blipList, bSEList, output.BaseStream, ref currentBlip, ref currentLength, ref currentImageStream);
if (array == null && currentLength < 8224 && numberOfContinues == 1)
{
WriteShapeProperties(dggContainer, output.BaseStream, ref shapePropertiesIndex, currentLength);
}
for (int i = 0; i < numberOfContinues; i++)
{
int size2 = (i != numberOfContinues - 1) ? 8224 : ((ushort)num2);
RecordFactory.WriteHeader(output, 60, size2);
currentLength = 0;
if (array != null)
{
output.BaseStream.Write(array, 0, array.Length);
currentLength += array.Length;
array = null;
}
if (currentImageStream == null)
{
array = FillRecordWithBlips(dggContainer, blipList, bSEList, output.BaseStream, ref currentBlip, ref currentLength, ref currentImageStream);
if (currentLength < 8224)
{
WriteShapeProperties(dggContainer, output.BaseStream, ref shapePropertiesIndex, currentLength);
}
continue;
}
int num3 = 8224 - currentLength;
int num4 = (int)(currentImageStream.Length - currentImageStream.Position);
if (num4 <= num3)
{
if (num4 > 0)
{
byte[] array2 = new byte[num4];
currentImageStream.Read(array2, 0, array2.Length);
output.BaseStream.Write(array2, 0, array2.Length);
currentLength += array2.Length;
}
dggContainer.StreamList[currentBlip].Offset = -1;
currentImageStream.Close();
currentImageStream = null;
currentBlip++;
array = FillRecordWithBlips(dggContainer, blipList, bSEList, output.BaseStream, ref currentBlip, ref currentLength, ref currentImageStream);
if (currentLength < 8224)
{
WriteShapeProperties(dggContainer, output.BaseStream, ref shapePropertiesIndex, currentLength);
}
}
else
{
byte[] buffer = new byte[num3];
currentImageStream.Read(buffer, 0, num3);
output.BaseStream.Write(buffer, 0, num3);
dggContainer.StreamList[currentBlip].Offset = (int)currentImageStream.Position;
}
}
output.BaseStream.Write(dggContainer.ShapePropertyData, shapePropertiesIndex, 50 - shapePropertiesIndex);
}