/// <summary>
/// Reads the whole document as a byte stream
/// </summary>
public static Stream StreamAllRawText()
{
var doc = PluginBase.CurrentScintillaGateway;
var length = doc.GetLength();
int gap = doc.GetGapPosition();
Debug.WriteLine($"ScintillaStreams StreamAllRawText: gap at {gap}/{length}");
if (length == gap)
{
var characterPointer = doc.GetCharacterPointer();
unsafe
{
return(new UnmanagedMemoryStream((byte *)characterPointer.ToPointer(), length, length, FileAccess.Read));
}
}
return(ConcatenatingStream.FromFactoryFunctions(false, () =>
{
var rangePtr = doc.GetRangePointer(0, gap);
unsafe
{
return new UnmanagedMemoryStream((byte *)rangePtr.ToPointer(), gap, gap, FileAccess.Read);
}
}, () =>
{
var rangePtr = doc.GetRangePointer(gap + 1, length);
unsafe
{
return new UnmanagedMemoryStream((byte *)rangePtr.ToPointer(), length - gap, length - gap, FileAccess.Read);
}
}));
}
public void Meh2()
{
var buffer1 = new byte[128];
var buffer2 = new byte[128];
for (byte i = 0; i < 128; i++)
{
buffer1[i] = i;
buffer2[i] = (byte)(i + 128);
}
var stream1 = new MemoryStream(buffer1);
var stream2 = new MemoryStream(buffer2);
var c = new ConcatenatingStream(new Stream[] { stream1, stream2 }, true);
var resultBuffer = new byte[256];
var data = c.Read(resultBuffer, 0, 256);
Assert.AreEqual(256, data);
resultBuffer.AssertEqualData(0, buffer1, 0, 128);
resultBuffer.AssertEqualData(128, buffer2, 0, 128);
}
public void Meh()
{
var r = new Random();
var buffer1 = new byte[1024];
r.NextBytes(buffer1);
var stream1 = new MemoryStream(buffer1);
var buffer2 = new byte[1024];
r.NextBytes(buffer2);
var stream2 = new MemoryStream(buffer2);
var c = new ConcatenatingStream(new Stream[] { stream1, stream2 }, true);
var resultBuffer = new byte[2048];
var data = c.Read(resultBuffer, 0, 2048);
Assert.AreEqual(2048, data);
resultBuffer.AssertEqualData(0, buffer1, 0, 1024);
resultBuffer.AssertEqualData(1024, buffer2, 0, 1024);
}
/// <summary>
/// Reads the whole document as a byte stream.
/// Will likely throw exceptions if the document is edited while the stream is open.
/// </summary>
public static Stream StreamAllRawText()
{
var doc = PluginBase.CurrentScintillaGateway;
var length = doc.GetLength();
// When editing a document Scintilla divides it into two - one before the cursor and one after, calling the break point the "gap"
int gap = doc.GetGapPosition();
Debug.WriteLine($"ScintillaStreams StreamAllRawText: gap at {gap}/{length}");
// If not currently editing there is no "gap", and the gap is the end of the document
if (length == gap)
{
var characterPointer = doc.GetCharacterPointer();
unsafe
{
return(new UnmanagedMemoryStream((byte *)characterPointer.ToPointer(), length, length, FileAccess.Read));
}
}
// If there is a gap we create two streams - one for the first part and one for the second, and concatenate them
return(ConcatenatingStream.FromFactoryFunctions(false, () =>
{
var rangePtr = doc.GetRangePointer(0, gap);
unsafe
{
return new UnmanagedMemoryStream((byte *)rangePtr.ToPointer(), gap, gap, FileAccess.Read);
}
}, () =>
{
var rangePtr = doc.GetRangePointer(gap + 1, length);
unsafe
{
return new UnmanagedMemoryStream((byte *)rangePtr.ToPointer(), length - gap, length - gap, FileAccess.Read);
}
}));
}
