private void DrawOrientedRect(YOrientedRectangle pos, Graphics g)
{
points[0] = new PointF((float)pos.AnchorX, (float)pos.AnchorY);
points[1] = new PointF((float)(pos.AnchorX + pos.Height * pos.UpX), (float)(pos.AnchorY + pos.Height * pos.UpY));
points[2] = new PointF((float)(pos.AnchorX + pos.Height * pos.UpX + pos.Width * -pos.UpY), (float)(pos.AnchorY + pos.Height * pos.UpY + pos.Width * pos.UpX));
points[3] = new PointF((float)(pos.AnchorX + pos.Width * -pos.UpY), (float)(pos.AnchorY + pos.Width * pos.UpX));
g.DrawPolygon(this.labelBorderPen, points);
}
private static Polygon GetPolygon(YOrientedRectangle orientedRectangle)
{
var poly = new Polygon();
poly.Stroke = Brushes.Red;
poly.Points.Add(new Point((float)orientedRectangle.AnchorX, (float)orientedRectangle.AnchorY));
poly.Points.Add(new Point((float)(orientedRectangle.AnchorX + orientedRectangle.Height * orientedRectangle.UpX), (float)(orientedRectangle.AnchorY + orientedRectangle.Height * orientedRectangle.UpY)));
poly.Points.Add(new Point((float)(orientedRectangle.AnchorX + orientedRectangle.Height * orientedRectangle.UpX + orientedRectangle.Width * -orientedRectangle.UpY), (float)(orientedRectangle.AnchorY + orientedRectangle.Height * orientedRectangle.UpY + orientedRectangle.Width * orientedRectangle.UpX)));
poly.Points.Add(new Point((float)(orientedRectangle.AnchorX + orientedRectangle.Width * -orientedRectangle.UpY), (float)(orientedRectangle.AnchorY + orientedRectangle.Width * orientedRectangle.UpX)));
return(poly);
}
private static YOrientedRectangle GetEdgeLabelLocation(LayoutGraph graph, Edge e, IEdgeLabelLayout ell)
{
YOrientedRectangle ellp = ell.LabelModel.GetLabelPlacement(
ell.BoundingBox,
graph.GetLayout(e),
graph.GetLayout(e.Source),
graph.GetLayout(e.Target),
ell.ModelParameter);
return(ellp);
}
protected void PaintEdgeLabel(Graphics g, LayoutGraph graph, Edge edge, IEdgeLabelLayout label)
{
YOrientedRectangle pos = GetEdgeLabelLocation(graph, edge, label);
DrawOrientedRect(pos, g);
}
protected void PaintNodeLabel(Graphics g, LayoutGraph graph, Node node, INodeLabelLayout label)
{
YOrientedRectangle pos = GetNodeLabelLocation(graph, node, label);
DrawOrientedRect(pos, g);
}
