/// <summary>
/// Sets the fixed source or target terminal point on the given edge.
/// </summary>
/// <param name="edge">State whose terminal point should be updated.</param>
/// <param name="terminal">State which represents the actual terminal.</param>
/// <param name="source">Boolean that specifies if the terminal is the source.</param>
/// <param name="constraint">Constraint that specifies the connection.</param>
public void UpdateFixedTerminalPoint(mxCellState edge, mxCellState terminal,
bool source, mxConnectionConstraint constraint)
{
mxPoint pt = null;
if (constraint != null)
{
pt = graph.GetConnectionPoint(terminal, constraint);
}
if (pt == null && terminal == null)
{
mxPoint orig = edge.Origin;
mxGeometry geo = graph.GetCellGeometry(edge.Cell);
pt = geo.GetTerminalPoint(source);
if (pt != null)
{
pt = new mxPoint(scale * (translate.X + pt.X + orig.X),
scale * (translate.Y + pt.Y + orig.Y));
}
}
edge.SetAbsoluteTerminalPoint(pt, source);
}
/// <summary>
/// Updates the absolute terminal point in the given state for the given
/// start and end state, where start is the source if source is true.
/// </summary>
/// <param name="edge">State whose terminal point should be updated.</param>
/// <param name="start">for the terminal on "this" side of the edge.</param>
/// <param name="end">for the terminal on the other side of the edge.</param>
/// <param name="source">Boolean indicating if start is the source terminal state.</param>
public void UpdateFloatingTerminalPoint(mxCellState edge, mxCellState start,
mxCellState end, bool source)
{
start = GetTerminalPort(edge, start, source);
mxPoint next = GetNextPoint(edge, end, source);
double border = mxUtils.GetDouble(edge.Style, mxConstants.STYLE_PERIMETER_SPACING);
border += mxUtils.GetDouble(edge.Style, (source) ?
mxConstants.STYLE_SOURCE_PERIMETER_SPACING :
mxConstants.STYLE_TARGET_PERIMETER_SPACING);
mxPoint pt = GetPerimeterPoint(start, next, graph.IsOrthogonal(edge), border);
edge.SetAbsoluteTerminalPoint(pt, source);
}