public override bool VertexVerbApplicable(Functions.Codes code, Target target)
{
switch (code)
{
case Functions.Codes.AddVertex: return(true);
case Functions.Codes.RemoveVertex: return(m_DefinedVertices > 2);
}
return(base.VertexVerbApplicable(code, target));
}
public override bool AllowVerbWhenComplete(Functions.Codes code)
{
switch (code)
{
case Functions.Codes.Increment:
case Functions.Codes.Decrement:
return(true);
default:
return(false);
}
}
public override VerbResult OtherVerb(EditableView.ClickPosition position, Functions.Codes code)
{
switch (code)
{
case Functions.Codes.Increment:
case Functions.Codes.Decrement:
int delta = code == Functions.Codes.Increment ? 1 : -1;
return(ChangeSides(delta));
default:
return(VerbResult.Rejected);
}
}
public override VerbResult OtherVerb(EditableView.ClickPosition position, Functions.Codes code)
{
switch (code)
{
case Functions.Codes.AddVertex:
case Functions.Codes.RemoveVertex:
// Base functionality is OK, except that we also need to update the control points
var result = base.OtherVerb(position, code);
if (code == Functions.Codes.RemoveVertex)
{
m_ControlPoints.RemoveRange(m_ControlPoints.Count - 2, 2);
}
else
{
m_ControlPoints.Add(PointF.Empty);
m_ControlPoints.Add(PointF.Empty);
}
this.SetControlPoints(0);
return(result);
}
return(base.OtherVerb(position, code));
}
