ssdassociationlinkedge.c

这个工具集提供以下结构化分析和UML分析中所用的图形化绘图工具：ER-diagrams, data and event flow diagrams and state-transition diagr

//------------------------------------------------------------------------------
//
// This file is part of Toolkit for Conceptual Modeling (TCM).
// (c) copyright 1999, Vrije Universiteit Amsterdam and University of Twente.
// Author: Frank Dehne ([e-mail]).
// Author: Henk van de Zandschulp ([e-mail]).
//
// TCM is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// TCM is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with TCM; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//-----------------------------------------------------------------------------
#include "ssdassociationlinkedge.h"
#include "ssdgraph.h"

SSDAssociationLinkEdge::SSDAssociationLinkEdge(
	SSDGraph *g, Subject *n1, Subject *n2): Edge(g, n1, n2) { }


Subject::NameErrType SSDAssociationLinkEdge::SetName(const string *s) {
	if (*s != "" && s->letters() == 0)
		return Subject::IMPOSSIBLE_NAME;
	else if ( *s == "" || 
		  ( ( GetSubject1()->GetClassType() == Code::SSD_CLASS_NODE ) &&
	    	    ( *s == *GetSubject1()->GetName() ) ) ||
		  ( ( GetSubject2()->GetClassType() == Code::SSD_CLASS_NODE ) &&
	    	    ( *s == *GetSubject2()->GetName() ) ) )
		return Edge::SetName(s);
	else
		return Subject::WRONG_NAME;
}