LineElementDrawData CreateLineElementDrawData(StructureVisualizerData data)
{
var pen = GetPen(data.BlockKind);
Debug.Assert(pen != null);
double x = GetLineXPosition(data);
return(new LineElementDrawData(pen, x));
}
LineElement FindLineElement(StructureVisualizerData info)
{
foreach (var lineElement in lineElements)
{
if (StructureVisualizerDataComparer.Instance.Equals(lineElement.StructureVisualizerData, info))
{
return(lineElement);
}
}
return(null);
}
public double GetXPosition(StructureVisualizerData data)
{
TryUpdateState();
var topPoint = data.Top.Start.TranslateTo(toXPosDictSnapshot, PointTrackingMode.Negative);
double x;
if (toXPosDict.TryGetValue(topPoint.Position, out x))
{
return(x);
}
var point = GetBlockStartPoint(topPoint, data.Bottom.Start.TranslateTo(toXPosDictSnapshot, PointTrackingMode.Negative));
var line = wpfTextView.GetTextViewLineContainingBufferPosition(point);
var bounds = line.GetExtendedCharacterBounds(point);
x = Math.Round(bounds.Left + bounds.Width / 2 - PEN_THICKNESS / 2) + 0.5;
toXPosDict[topPoint.Position] = x;
return(x);
}
public LineElement(StructureVisualizerData info)
{
StructureVisualizerData = info;
}
double GetLineXPosition(StructureVisualizerData data) => xPosCache.GetXPosition(data);
IEnumerable <LineElementData> GetLineElementData(NormalizedSnapshotSpanCollection spans)
{
if (spans.Count == 0)
{
yield break;
}
var snapshot = spans[0].Snapshot;
ITextSnapshotLine snapshotLine = null;
SnapshotSpan lineExtent;
var prevLineExtent = default(SnapshotSpan);
var list = new List <StructureVisualizerData>();
StructureVisualizerData[] listArray = null;
List <ITextViewLine> linesList = null;
foreach (var span in spans)
{
var lines = GetTextViewLinesIntersectingSpan(span, ref linesList);
foreach (var line in lines)
{
if (snapshotLine != null)
{
if (line.Start >= snapshotLine.Start && line.EndIncludingLineBreak <= snapshotLine.EndIncludingLineBreak)
{
// Nothing
}
else if (line.Start == snapshotLine.EndIncludingLineBreak)
{
snapshotLine = snapshotLine.Snapshot.GetLineFromLineNumber(snapshotLine.LineNumber + 1);
}
else
{
snapshotLine = line.Start.GetContainingLine();
}
lineExtent = snapshotLine.Extent;
}
else if (line.IsFirstTextViewLineForSnapshotLine && line.IsLastTextViewLineForSnapshotLine)
{
lineExtent = line.Extent;
}
else
{
snapshotLine = line.Start.GetContainingLine();
lineExtent = snapshotLine.Extent;
}
if (prevLineExtent != lineExtent)
{
list.Clear();
structureVisualizerServiceDataProvider.GetData(lineExtent, list);
listArray = list.Count == 0 ? Array.Empty <StructureVisualizerData>() : list.ToArray();
}
if (listArray.Length != 0)
{
var last = listArray[listArray.Length - 1];
// Don't add a vertical line to the line containing the start block
if (!(last.Top.Start >= lineExtent.Start && last.Top.End <= lineExtent.End))
{
var ary = listArray;
if (last.Bottom.Start >= lineExtent.Start && last.Bottom.End <= lineExtent.End)
{
ary = new StructureVisualizerData[listArray.Length - 1];
for (int i = 0; i < ary.Length; i++)
{
ary[i] = listArray[i];
}
}
yield return(new LineElementData(line, ary));
}
}
prevLineExtent = lineExtent;
}
}
}
