internal TaskProviderItem(
IServiceProvider serviceProvider,
string message,
SourceSpan rawSpan,
VSTASKPRIORITY priority,
VSTASKCATEGORY category,
bool squiggle,
LocationTracker spanTranslator
)
{
_serviceProvider = serviceProvider;
_message = message;
_rawSpan = rawSpan;
_spanTranslator = spanTranslator;
_rawSpan = rawSpan;
_priority = priority;
_category = category;
_squiggle = squiggle;
}
public TaskProviderItemFactory(LocationTracker spanTranslator)
{
_spanTranslator = spanTranslator;
}
public TaskProviderItemFactory(LocationTracker spanTranslator, int fromVersion)
{
_spanTranslator = spanTranslator;
_fromVersion = fromVersion;
}
public object CreateDiffView(AnalysisProtocol.ChangeInfo[] changes, LocationTracker tracker, ITextBuffer originalBuffer)
{
// Create a copy of the left hand buffer (we're going to remove all of the
// content we don't care about from it).
var leftBuffer = _bufferFactory.CreateTextBuffer(originalBuffer.ContentType);
using (var edit = leftBuffer.CreateEdit()) {
edit.Insert(0, originalBuffer.CurrentSnapshot.GetText());
edit.Apply();
}
// create a buffer for the right hand side, copy the original buffer
// into it, and then apply the changes.
var rightBuffer = _bufferFactory.CreateTextBuffer(originalBuffer.ContentType);
using (var edit = rightBuffer.CreateEdit()) {
edit.Insert(0, originalBuffer.CurrentSnapshot.GetText());
edit.Apply();
}
var startingVersion = rightBuffer.CurrentSnapshot;
VsProjectAnalyzer.ApplyChanges(changes, rightBuffer, tracker);
var textChanges = startingVersion.Version.Changes;
int minPos = startingVersion.Length, maxPos = 0;
foreach (var change in textChanges)
{
minPos = Math.Min(change.OldPosition, minPos);
maxPos = Math.Max(change.OldPosition, maxPos);
}
if (minPos == startingVersion.Length && maxPos == 0)
{
// no changes? that's weird...
return(null);
}
MinimizeBuffers(leftBuffer, rightBuffer, startingVersion, minPos, maxPos);
// create the difference buffer and view...
var diffBuffer = _diffBufferFactory.CreateDifferenceBuffer(leftBuffer, rightBuffer);
var diffView = _diffFactory.CreateDifferenceView(diffBuffer, _previewRoleSet);
diffView.ViewMode = DifferenceViewMode.Inline;
diffView.InlineView.ZoomLevel *= .75;
diffView.InlineView.VisualElement.Focusable = false;
diffView.InlineHost.GetTextViewMargin("deltadifferenceViewerOverview").VisualElement.Visibility = System.Windows.Visibility.Collapsed;
// Reduce the size of the buffer once it's ready
diffView.DifferenceBuffer.SnapshotDifferenceChanged += (sender, args) => {
diffView.InlineView.DisplayTextLineContainingBufferPosition(
new SnapshotPoint(diffView.DifferenceBuffer.CurrentInlineBufferSnapshot, 0),
0.0, ViewRelativePosition.Top, double.MaxValue, double.MaxValue
);
var width = Math.Max(diffView.InlineView.MaxTextRightCoordinate * (diffView.InlineView.ZoomLevel / 100), 400); // Width of the widest line.
var height = diffView.InlineView.LineHeight * (diffView.InlineView.ZoomLevel / 100) * // Height of each line.
diffView.DifferenceBuffer.CurrentInlineBufferSnapshot.LineCount;
diffView.VisualElement.Width = width;
diffView.VisualElement.Height = height;
};
return(diffView.VisualElement);
}
private async void OnNewAnalysis(AnalysisEntry entry) {
if (!_provider._colorNames) {
bool raise = false;
lock (_spanCacheLock) {
if (_spanCache != null) {
_spanCache = null;
raise = true;
}
}
if (raise) {
OnNewClassifications(_buffer.CurrentSnapshot);
}
return;
}
var classifications = await entry.Analyzer.GetAnalysisClassificationsAsync(
entry,
_buffer,
_provider._colorNamesWithAnalysis
);
if (classifications != null) {
Debug.WriteLine("Received {0} classifications", classifications.Data.classifications.Length);
// sort the spans by starting position so we can use binary search when handing them out
Array.Sort(
classifications.Data.classifications,
(x, y) => x.start - y.start
);
lock (_spanCacheLock) {
_spanCache = classifications.Data.classifications;
_spanTranslator = classifications.GetTracker(classifications.Data.version);
}
if (_spanTranslator != null) {
OnNewClassifications(_buffer.CurrentSnapshot);
}
}
}