public Path CreateLineForMinSpanningTreeEdge(DelaunayEdge edge)
{
if (this.minimumSpanningTreePaths == null)
{
this.minimumSpanningTreePaths = new Dictionary<DelaunayEdge, Path>();
}
if (!this.minimumSpanningTreePaths.ContainsKey(edge))
{
LineGeometry geometry = new LineGeometry(new Point(edge.Start.X, edge.Start.Y), new Point(edge.End.X, edge.End.Y));
geometry.Freeze();
Path path = new Path();
path.Data = geometry;
path.StrokeThickness = MinimumSpanningTreeTickness;
path.Stroke = new SolidColorBrush(Color.FromArgb(120, minimumSpanningTreeEdgeColor.A, minimumSpanningTreeEdgeColor.G, minimumSpanningTreeEdgeColor.B));
this.minimumSpanningTreePaths[edge] = path;
}
return this.minimumSpanningTreePaths[edge];
}
public Path CreateEdgeLine(DelaunayEdge edge)
{
if (this.edgesPaths == null)
{
this.edgesPaths = new Dictionary<DelaunayEdge, Path>();
}
if (!this.edgesPaths.ContainsKey(edge))
{
LineGeometry geometry = new LineGeometry(new Point(edge.Start.X, edge.Start.Y), new Point(edge.End.X, edge.End.Y));
geometry.Freeze();
Path path = new Path();
path.Data = geometry;
path.StrokeThickness = EdgeTickness;
path.Stroke = new SolidColorBrush(EdgeColor);
this.edgesPaths[edge] = path;
}
return this.edgesPaths[edge];
}
void CreateVisuals(ITextViewLine line)
{
var text = view.TextSnapshot.GetText(line.Start, line.Length);
if (hasUsing == false)
UpdateUsing(text);
var regex = hasUsing == true ? usingColorRegex : colorRegex;
var matches = regex.Matches(text);
foreach (Match match in matches)
{
var mode = match.Groups["mode"].Value;
Func<Match, Eto.Drawing.Color> translateColor;
if (!colorMatching.TryGetValue(mode, out translateColor))
continue;
var color = translateColor(match).ToWpf();
if (color.A <= 0)
continue;
var span = new SnapshotSpan(view.TextSnapshot, line.Start + match.Index, match.Length);
var geometry = view.TextViewLines.GetMarkerGeometry(span);
if (geometry == null
|| !view.TextViewModel.IsPointInVisualBuffer(span.Start, PositionAffinity.Successor)
|| !view.TextViewModel.IsPointInVisualBuffer(span.End, PositionAffinity.Predecessor))
continue;
var pen = GetPen(color);
var bounds = geometry.Bounds;
var underline = new LineGeometry(bounds.BottomLeft, bounds.BottomRight);
underline.Freeze();
var drawing = new GeometryDrawing(null, pen, underline);
drawing.Freeze();
var drawingImage = new DrawingImage(drawing);
drawingImage.Freeze();
var image = new Image();
image.Source = drawingImage;
Canvas.SetLeft(image, geometry.Bounds.Left);
Canvas.SetTop(image, geometry.Bounds.Bottom - 2);
layer.AddAdornment(AdornmentPositioningBehavior.TextRelative, span, null, image, null);
}
}
