128 lines
2.3 KiB
C++
128 lines
2.3 KiB
C++
|
|
// EmptyValue.cpp: implementation of the CEmptyValue class.
|
|
/*
|
|
* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
|
|
*
|
|
* Permission to use, copy, modify, distribute and sell this software
|
|
* and its documentation for any purpose is hereby granted without fee,
|
|
* provided that the above copyright notice appear in all copies and
|
|
* that both that copyright notice and this permission notice appear
|
|
* in supporting documentation. Erwin Coumans makes no
|
|
* representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "EmptyValue.h"
|
|
#include "IntValue.h"
|
|
#include "FloatValue.h"
|
|
#include "StringValue.h"
|
|
#include "ErrorValue.h"
|
|
#include "ListValue.h"
|
|
#include "VoidValue.h"
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Construction/Destruction
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
CEmptyValue::CEmptyValue()
|
|
/*
|
|
pre:
|
|
effect: constructs a new CEmptyValue
|
|
*/
|
|
{
|
|
SetModified(false);
|
|
}
|
|
|
|
|
|
|
|
CEmptyValue::~CEmptyValue()
|
|
/*
|
|
pre:
|
|
effect: deletes the object
|
|
*/
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
CValue * CEmptyValue::Calc(VALUE_OPERATOR op, CValue * val)
|
|
/*
|
|
pre:
|
|
ret: a new object containing the result of applying operator op to this
|
|
object and val
|
|
*/
|
|
{
|
|
return val->CalcFinal(VALUE_EMPTY_TYPE, op, this);
|
|
|
|
}
|
|
|
|
|
|
|
|
CValue * CEmptyValue::CalcFinal(VALUE_DATA_TYPE dtype, VALUE_OPERATOR op, CValue * val)
|
|
/*
|
|
pre: the type of val is dtype
|
|
ret: a new object containing the result of applying operator op to val and
|
|
this object
|
|
*/
|
|
{
|
|
return val->AddRef();
|
|
}
|
|
|
|
|
|
|
|
float CEmptyValue::GetNumber()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
CListValue* CEmptyValue::GetPolySoup()
|
|
{
|
|
CListValue* soup = new CListValue();
|
|
//don't add any poly, while it's an empty value
|
|
return soup;
|
|
}
|
|
|
|
|
|
|
|
bool CEmptyValue::IsInside(CValue* testpoint,bool bBorderInclude)
|
|
{
|
|
// empty space is solid, so always inside
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
double* CEmptyValue::GetVector3(bool bGetTransformedVec)
|
|
{
|
|
assertd(false); // don't get vector from me
|
|
return ZeroVector();
|
|
}
|
|
|
|
|
|
|
|
static STR_String emptyString = STR_String("");
|
|
|
|
|
|
const STR_String & CEmptyValue::GetText()
|
|
{
|
|
return emptyString;
|
|
}
|
|
|
|
|
|
|
|
CValue* CEmptyValue::GetReplica()
|
|
{
|
|
CEmptyValue* replica = new CEmptyValue(*this);
|
|
CValue::AddDataToReplica(replica);
|
|
return replica;
|
|
}
|
|
|