private void CreateBlockAdornment(Microsoft.PowerToolsEx.BlockTagger.IBlockTag tag, SnapshotSpan span, double x, double yTop, double yBottom)
{
LineGeometry line = new LineGeometry(new Point(x, yTop), new Point(x, yBottom));
GeometryDrawing drawing = new GeometryDrawing(null, _coloring.GetLinePen(tag), line);
drawing.Freeze();
DrawingImage drawingImage = new DrawingImage(drawing);
drawingImage.Freeze();
Image image = new Image();
image.Source = drawingImage;
VisibleBlock block = new VisibleBlock(tag, x, yTop, yBottom);
Canvas.SetLeft(image, x);
Canvas.SetTop(image, yTop);
_layer.AddAdornment(AdornmentPositioningBehavior.TextRelative, span, block, image, OnAdornmentRemoved);
_visibleBlocks.Add(block);
}
private void DrawBlock(DrawingContext drawingContext, IMappingTagSpan <IBlockTag> tag, bool methodHighlights)
{
if (methodHighlights
? (tag.Tag.Type == BlockType.Method)
: ((tag.Tag.Type != BlockType.Namespace) && (tag.Tag.Type != BlockType.Root)))
{
int level = 0;
for (var p = tag.Tag.Parent; (p != null); p = p.Parent)
{
if ((p.Type != BlockType.Namespace) && (p.Type != BlockType.Root))
{
++level;
}
}
NormalizedSnapshotSpanCollection spans = tag.Span.GetSpans(_textView.TextSnapshot);
foreach (var span in spans)
{
double x = (double)(level) * (lineWidth + gapWidth) + 3.0;
if (x < this.ActualWidth)
{
double yTop = _scrollBar.GetYCoordinateOfBufferPosition(span.Start);
double yBottom = _scrollBar.GetYCoordinateOfBufferPosition(span.End);
if (yBottom > yTop + 2.0)
{
if (methodHighlights)
{
drawingContext.PushClip(new RectangleGeometry(new Rect(x - 1.0, 0.0, (this.ActualWidth - x), this.ActualHeight)));
drawingContext.DrawEllipse(_coloring.MethodSeparatorAndHighlightColoring.ToolTipBrush, null, new Point(x - 1.0, (yTop + yBottom) * 0.5),
(this.ActualWidth + 1.0 - x), (yBottom - yTop) * 0.5);
drawingContext.Pop();
}
else
{
drawingContext.DrawLine(_coloring.GetLinePen(tag.Tag),
new Point(x, yTop),
new Point(x, yBottom));
}
}
}
}
}
}