private void DrawEdge(Edge e)
{
if (e == null)
{
return;
}
int thickness = e.IsDouble ? doubleThickness : normalThickness;
Brush b = Brushes.Black;
if (e.HasRail)
{
b = Brushes.Red;
thickness = railThickness;
}
LineCoordinates coords = CoordsFromEdge(e);
double x1 = pointSize / 2 + coords.startX + leftShift;
double x2 = pointSize / 2 + coords.endX + leftShift;
double y1 = topShift + pointSize / 2 + coords.startY * heightScale;
double y2 = topShift + pointSize / 2 + coords.endY * heightScale;
Line edgeLine = new Line()
{
Stroke = b, StrokeThickness = thickness, X1 = x1, X2 = x2, Y1 = y1, Y2 = y2
};
edgeLine.Tag = e;
edgeLine.MouseEnter += MouseOverEdge;
edgeLine.MouseLeave += MouseOutEdge;
edgeLine.MouseUp += MouseClickEdge;
gameCanvas.Children.Add(edgeLine);
}
private LineCoordinates CoordsFromEdge(Edge e)
{
LineCoordinates coords = new LineCoordinates();
coords.startX = LeftFromVertex(e.From);
coords.endX = LeftFromVertex(e.To);
coords.startY = TopFromVertex(e.From);
coords.endY = TopFromVertex(e.To);
return(coords);
}