/// <summary>
/// Draws a partially defined graph edge</summary>
/// <param name="fromNode">Source node, or null</param>
/// <param name="fromRoute">Source route, or null</param>
/// <param name="toNode">Destination node, or null</param>
/// <param name="toRoute">Destination route, or null</param>
/// <param name="label">Edge label</param>
/// <param name="endPoint">Endpoint to substitute for source or destination, if either is null</param>
/// <param name="g">Graphics object</param>
public override void Draw(
TNode fromNode,
BoundaryRoute fromRoute,
TNode toNode,
BoundaryRoute toRoute,
string label,
Point endPoint,
D2dGraphics g)
{
// put endpoint into statechart space
var inverse = g.Transform;
inverse.Invert();
PointF end = Matrix3x2F.TransformPoint(inverse, endPoint);
PointF p1;
PointF normal1;
if (fromNode != null)
{
p1 = ParameterToPoint(fromNode.Bounds, fromRoute.Position, out normal1);
}
else
{
p1 = end;
normal1 = new Point();
}
PointF p4;
PointF normal2;
if (toNode != null)
{
p4 = ParameterToPoint(toNode.Bounds, toRoute.Position, out normal2);
}
else
{
p4 = end;
normal2 = new Point();
}
PointF p2, p3;
float d = GetTransitionPoints(p1, normal1, p4, normal2, out p2, out p3);
DrawEdgeSpline(p1, p2, p3, p4, d, m_theme.OutlineBrush, g);
if (!string.IsNullOrEmpty(label))
{
BezierCurve2F curve = new BezierCurve2F(p1, p2, p3, p4);
Vec2F midpoint = curve.Evaluate(0.5f);
g.DrawText(label, m_centerText, new PointF(midpoint.X, midpoint.Y), m_theme.TextBrush);
}
}
private void Draw(TEdge edge, Pen pen, Graphics g)
{
Point p1, p2, p3, p4;
float d = GetTransitionPoints(edge, out p1, out p2, out p3, out p4);
DrawEdgeSpline(p1, p2, p3, p4, d, pen, g);
BezierCurve2F curve = new BezierCurve2F(p1, p2, p3, p4);
Vec2F midpoint = curve.Evaluate(0.5f);
midpoint.X += 2;
g.DrawString(edge.Label, m_theme.Font, m_theme.TextBrush, new PointF(midpoint.X, midpoint.Y));
}
/// <summary>
/// Draws a partially defined graph edge</summary>
/// <param name="fromNode">Source node, or null</param>
/// <param name="fromRoute">Source route, or null</param>
/// <param name="toNode">Destination node, or null</param>
/// <param name="toRoute">Destination route, or null</param>
/// <param name="label">Edge label</param>
/// <param name="endPoint">Endpoint to substitute for source or destination, if either is null</param>
/// <param name="g">Graphics object</param>
public override void Draw(
TNode fromNode,
BoundaryRoute fromRoute,
TNode toNode,
BoundaryRoute toRoute,
string label,
Point endPoint,
Graphics g)
{
// put endpoint into statechart space
endPoint = GdiUtil.InverseTransform(g.Transform, endPoint);
Point p1;
Point normal1;
if (fromNode != null)
{
p1 = ParameterToPoint(fromNode.Bounds, fromRoute.Position, out normal1);
}
else
{
p1 = endPoint;
normal1 = new Point();
}
Point p4;
Point normal2;
if (toNode != null)
{
p4 = ParameterToPoint(toNode.Bounds, toRoute.Position, out normal2);
}
else
{
p4 = endPoint;
normal2 = new Point();
}
Point p2, p3;
float d = GetTransitionPoints(p1, normal1, p4, normal2, out p2, out p3);
DrawEdgeSpline(p1, p2, p3, p4, d, m_theme.OutlinePen, g);
BezierCurve2F curve = new BezierCurve2F(p1, p2, p3, p4);
Vec2F midpoint = curve.Evaluate(0.5f);
midpoint.X += 2;
g.DrawString(label, m_theme.Font, m_theme.TextBrush, new PointF(midpoint.X, midpoint.Y));
}
private void Draw(TEdge edge, D2dBrush brush, D2dGraphics g)
{
PointF p1, p2, p3, p4;
float d = GetTransitionPoints(edge, out p1, out p2, out p3, out p4);
DrawEdgeSpline(p1, p2, p3, p4, d, brush, g);
GdiUtil.MakeRectangle(p1, p2);
BezierCurve2F curve = new BezierCurve2F(p1, p2, p3, p4);
Vec2F midpoint = curve.Evaluate(0.5f);
midpoint.X += 2;
string label = edge.Label;
if (!string.IsNullOrEmpty(label))
{
g.DrawText(edge.Label, m_theme.TextFormat, new PointF(midpoint.X, midpoint.Y), m_theme.TextBrush);
}
}
