private void PopulateSourceEdits(ITextBuffer buffer)
{
IProjectionBufferBase projectionBuffer = buffer as IProjectionBufferBase;
if (projectionBuffer != null)
{
// Add ITextEdit objects to the edit map for all source buffers of the current projection buffer that
// are themselves projection buffers. This is so that such buffers are not considered independent buffers
// if it happens that the master edit does not touch them directly (even though not touched directly, they
// may receive events from their source buffers that were touched directly, and so FinalApply() will need
// to be invoked on them in order to construct a snapshot that matches the last snapshots of their source buffers).
foreach (ITextBuffer sourceBuffer in projectionBuffer.SourceBuffers)
{
IProjectionBufferBase sourceProjectionBuffer = sourceBuffer as IProjectionBufferBase;
if (sourceProjectionBuffer != null)
{
BaseBuffer baseSourceBuffer = (BaseBuffer)sourceBuffer;
if (!this.buffer2EditMap.ContainsKey(baseSourceBuffer))
{
this.buffer2EditMap.Add(sourceBuffer, (baseSourceBuffer.CreateSubordinateEdit(this.masterOptions, null, this.masterEditTag)));
}
}
}
}
}
public ITextEdit GetEdit(BaseBuffer buffer, EditOptions options)
{
ISubordinateTextEdit subedit;
if (!this.buffer2EditMap.TryGetValue(buffer, out subedit))
{
Debug.Assert(!(buffer is IProjectionBufferBase));
subedit = buffer.CreateSubordinateEdit(options, null, this.masterEditTag);
this.buffer2EditMap.Add(buffer, subedit);
}
return((ITextEdit)subedit);
}
