ssdobjectnode.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 1996, Vrije Universiteit Amsterdam.
// Author: Frank Dehne ([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 "ssdobjectnode.h"
#include "ssdgraph.h"
#include "lstring.h"

SSDObjectNode::SSDObjectNode(SSDGraph *g): StringListNode(g) {
	SetStringListLabel("Attributes");
	SetStringLabel("Attribute");
}

StringListNode::StringErrorType SSDObjectNode::SetString(
		const string *s, unsigned n, bool update) {
	if (*s != "" && s->letters()==0)
		return StringListNode::STRING_SYNTAX_ERROR;
	if (HasString(s)) {
		if (n >= NrStrings() || *GetString(n) != *s || !update)
			return StringListNode::STRING_ALREADY_EXISTS;
	}
	return StringListNode::SetString(s, n, update);
}