private void SourceBuffersChanged(object sender, ProjectionSourceBuffersChangedEventArgs e)
{
IProjectionBufferBase projBuffer = (IProjectionBufferBase)sender;
FrugalList <ITextBuffer> addedToGraphBuffers = new FrugalList <ITextBuffer>();
FrugalList <ITextBuffer> removedFromGraphBuffers = new FrugalList <ITextBuffer>();
foreach (ITextBuffer addedBuffer in e.AddedBuffers)
{
AddSourceBuffer(projBuffer, addedBuffer, addedToGraphBuffers);
}
foreach (ITextBuffer removedBuffer in e.RemovedBuffers)
{
RemoveSourceBuffer(projBuffer, removedBuffer, removedFromGraphBuffers);
}
if (addedToGraphBuffers.Count > 0 || removedFromGraphBuffers.Count > 0)
{
var listeners = GraphBuffersChanged;
if (listeners != null)
{
((BaseBuffer)projBuffer).group.EnqueueEvents
(new GraphEventRaiser(this, new GraphBuffersChangedEventArgs(addedToGraphBuffers, removedFromGraphBuffers)), null);
}
}
}
private void OnSourceBuffersChanged(object sender, ProjectionSourceBuffersChangedEventArgs e)
{
BufferGraph targetGraph = this.GetTargetGraph();
if (targetGraph != null)
{
targetGraph.SourceBuffersChanged(sender, e);
}
}
private void OnProjectionBufferSourceBuffersChanged(object sender, ProjectionSourceBuffersChangedEventArgs e)
{
foreach (var b in e.RemovedBuffers)
{
_viewModel.SourceBuffers.Remove(b);
}
foreach (var b in e.AddedBuffers)
{
_viewModel.SourceBuffers.Add(b);
}
UpdateSourceSpans();
}
private void OnProjectionBufferSourceBuffersChanged(object sender, ProjectionSourceBuffersChangedEventArgs e)
{
foreach (var b in e.RemovedBuffers)
{
_viewModel.SourceBuffers.Remove(b);
}
foreach (var b in e.AddedBuffers)
{
_viewModel.SourceBuffers.Add(b);
}
UpdateSourceSpans();
}
private void OnSourceBuffersChanged(object sender, ProjectionSourceBuffersChangedEventArgs e)
{
// This is something of a hack. We can't use the buffer graph events for tracking when buffers are added
// or removed from the projection stack (the buffer events are fired after the corresponding text changed
// events so people getting tags inside the text change event would not see any tags on the newly added
// buffers). Instead, we update our buffer states by traversing the entire buffer graph whenever the
// source buffers for any projection buffer in the graph changes.
//
// This should be rare.
// Bump our version number so we can tell which BufferStates are unused.
++(this.versionNumber);
this.RegisterBufferGraph();
// Now that all living buffers have been registerd (and had their version numbers bumped), find any stale buffers
// that have an old version number and remove them.
List <ITextBuffer> deadBuffers = null;
foreach (var kvp in this.bufferStates)
{
if (kvp.Value.VersionNumber != this.versionNumber)
{
if (deadBuffers == null)
{
deadBuffers = new List <ITextBuffer>(this.bufferStates.Count);
}
deadBuffers.Add(kvp.Key);
}
}
if (deadBuffers != null)
{
foreach (var b in deadBuffers)
{
this.UnregisterAndRemoveBuffer(b);
}
}
}
private void OnSourceBuffersChanged(object sender, ProjectionSourceBuffersChangedEventArgs e)
{
_label.Content = $"This text view contains {_projectionBuffer.SourceBuffers.Count} projection buffers and {_projectionBuffer.CurrentSnapshot.SpanCount} projection spans.";
}
private void OnSourceBuffersChanged(object sender, ProjectionSourceBuffersChangedEventArgs e) => HandleAddRemoveBuffers(e.AddedBuffers, e.RemovedBuffers);
private void OnSourceBuffersChanged(object sender, ProjectionSourceBuffersChangedEventArgs e) {
HandleAddRemoveBuffers(e.AddedBuffers, e.RemovedBuffers);
}
