public void SetProjectionMappings(string secondaryContent, IReadOnlyList <ProjectionMapping> mappings)
{
// Changing projections can move caret to a visible area unexpectedly.
// Save caret position so we can place it at the same location when
// projections are re-established.
SaveViewPosition();
var secondarySpans = CreateSecondarySpans(secondaryContent, mappings);
if (IdenticalSpans(secondarySpans))
{
return;
}
// While we are changing mappings map everything to the view
mappings = mappings ?? new List <ProjectionMapping>();
MapEverythingToView();
// Now update language spans
ContainedLanguageBuffer.ReplaceSpans(0, ContainedLanguageBuffer.CurrentSnapshot.SpanCount, secondarySpans, EditOptions.DefaultMinimalChange, this);
if (secondarySpans.Count > 0)
{
// Update primary (view) buffer projected spans. View buffer spans are all tracking spans:
// they either come from primary content or secondary content. Inert spans do not participate.
var viewSpans = CreateViewSpans(mappings);
if (viewSpans.Count > 0)
{
ViewBuffer.ReplaceSpans(0, ViewBuffer.CurrentSnapshot.SpanCount, viewSpans, EditOptions.DefaultMinimalChange, this);
}
}
RestoreViewPosition();
MappingsChanged?.Invoke(this, EventArgs.Empty);
}
private void MapEverythingToView()
{
var diskSnap = DiskBuffer.CurrentSnapshot;
var everything = new SnapshotSpan(diskSnap, 0, diskSnap.Length);
var trackingSpan = diskSnap.CreateTrackingSpan(everything, SpanTrackingMode.EdgeInclusive);
ViewBuffer.ReplaceSpans(0, ViewBuffer.CurrentSnapshot.SpanCount, new List <object>()
{
trackingSpan
}, EditOptions.None, this);
}
public void SetProjectionMappings(string secondaryContent, IReadOnlyList <ProjectionMapping> mappings)
{
mappings = mappings ?? new List <ProjectionMapping>();
MapEverythingToView();
// Now update language spans
var secondarySpans = CreateSecondarySpans(secondaryContent, mappings);
ContainedLanguageBuffer.ReplaceSpans(0, ContainedLanguageBuffer.CurrentSnapshot.SpanCount, secondarySpans, EditOptions.DefaultMinimalChange, this);
// Update primary (view) buffer projected spans. View buffer spans are all tracking spans:
// they either come from primary content or secondary content. Inert spans do not participate.
var viewSpans = CreateViewSpans(mappings);
if (viewSpans.Count > 0)
{
ViewBuffer.ReplaceSpans(0, ViewBuffer.CurrentSnapshot.SpanCount, viewSpans, EditOptions.DefaultMinimalChange, this);
}
}
