133 lines
2.2 KiB
C++
133 lines
2.2 KiB
C++
// ConstExpr.cpp: implementation of the CConstExpr 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 "Value.h" // for precompiled header
|
|
|
|
#include "ConstExpr.h"
|
|
#include "VectorValue.h"
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Construction/Destruction
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
CConstExpr::CConstExpr()
|
|
{
|
|
}
|
|
|
|
|
|
|
|
CConstExpr::CConstExpr(CValue* constval)
|
|
/*
|
|
pre:
|
|
effect: constructs a CConstExpr cointing the value constval
|
|
*/
|
|
{
|
|
m_value = constval;
|
|
// m_bModified=true;
|
|
}
|
|
|
|
|
|
|
|
CConstExpr::~CConstExpr()
|
|
/*
|
|
pre:
|
|
effect: deletes the object
|
|
*/
|
|
{
|
|
if (m_value)
|
|
m_value->Release();
|
|
}
|
|
|
|
|
|
|
|
unsigned char CConstExpr::GetExpressionID()
|
|
{
|
|
return CCONSTEXPRESSIONID;
|
|
}
|
|
|
|
|
|
|
|
CValue* CConstExpr::Calculate()
|
|
/*
|
|
pre:
|
|
ret: a new object containing the value of the stored CValue
|
|
*/
|
|
{
|
|
return m_value->AddRef();
|
|
}
|
|
|
|
|
|
|
|
void CConstExpr::ClearModified()
|
|
{
|
|
if (m_value)
|
|
{
|
|
m_value->SetModified(false);
|
|
m_value->SetAffected(false);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
float CConstExpr::GetNumber()
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
bool CConstExpr::NeedsRecalculated()
|
|
{
|
|
return m_value->IsAffected(); // IsAffected is m_bModified OR m_bAffected !!!
|
|
}
|
|
|
|
|
|
|
|
CExpression* CConstExpr::CheckLink(std::vector<CBrokenLinkInfo*>& brokenlinks)
|
|
{
|
|
// parent checks if child is still usefull.
|
|
// When for example it's value it's deleted flag set
|
|
// then release Value, and return NULL in case of constexpression
|
|
// else return this...
|
|
|
|
assertd(m_value);
|
|
if (m_value->IsReleaseRequested())
|
|
{
|
|
AddRef(); //numchanges++;
|
|
return Release();
|
|
}
|
|
else
|
|
return this;
|
|
}
|
|
|
|
|
|
|
|
void CConstExpr::BroadcastOperators(VALUE_OPERATOR op)
|
|
{
|
|
assertd(m_value);
|
|
m_value->SetColorOperator(op);
|
|
}
|
|
|
|
|
|
|
|
bool CConstExpr::MergeExpression(CExpression *otherexpr)
|
|
{
|
|
assertd(false);
|
|
return false;
|
|
}
|