209a2ede2c
#ifdef HAVE_CONFIG_H #include <config.h> #endif added to these files. Kent -- mein@cs.umn.edu
133 lines
2.3 KiB
C++
133 lines
2.3 KiB
C++
// ConstExpr.cpp: implementation of the CConstExpr class.
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/*
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* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Erwin Coumans makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*/
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#include "Value.h" // for precompiled header
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#include "ConstExpr.h"
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#include "VectorValue.h"
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CConstExpr::CConstExpr()
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{
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}
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CConstExpr::CConstExpr(CValue* constval)
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/*
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pre:
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effect: constructs a CConstExpr cointing the value constval
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*/
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{
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m_value = constval;
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// m_bModified=true;
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}
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CConstExpr::~CConstExpr()
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/*
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pre:
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effect: deletes the object
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*/
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{
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if (m_value)
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m_value->Release();
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}
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unsigned char CConstExpr::GetExpressionID()
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{
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return CCONSTEXPRESSIONID;
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}
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CValue* CConstExpr::Calculate()
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/*
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pre:
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ret: a new object containing the value of the stored CValue
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*/
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{
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return m_value->AddRef();
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}
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void CConstExpr::ClearModified()
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{
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if (m_value)
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{
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m_value->SetModified(false);
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m_value->SetAffected(false);
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}
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}
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float CConstExpr::GetNumber()
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{
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return -1;
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}
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bool CConstExpr::NeedsRecalculated()
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{
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return m_value->IsAffected(); // IsAffected is m_bModified OR m_bAffected !!!
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}
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CExpression* CConstExpr::CheckLink(std::vector<CBrokenLinkInfo*>& brokenlinks)
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{
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// parent checks if child is still usefull.
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// When for example it's value it's deleted flag set
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// then release Value, and return NULL in case of constexpression
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// else return this...
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assertd(m_value);
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if (m_value->IsReleaseRequested())
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{
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AddRef(); //numchanges++;
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return Release();
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}
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else
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return this;
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}
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void CConstExpr::BroadcastOperators(VALUE_OPERATOR op)
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{
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assertd(m_value);
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m_value->SetColorOperator(op);
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}
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bool CConstExpr::MergeExpression(CExpression *otherexpr)
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{
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assertd(false);
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return false;
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}
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