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*
* Licensed to the Apache Software Foundation (ASF) under one
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* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
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#ifndef SC_FORMULARESULT_HXX
#define SC_FORMULARESULT_HXX
#include "token.hxx"
/** Store a variable formula cell result, balancing between runtime performance
and memory consumption. */
class ScFormulaResult
{
typedef unsigned char Multiline;
static const Multiline MULTILINE_UNKNOWN = 0;
static const Multiline MULTILINE_FALSE = 1;
static const Multiline MULTILINE_TRUE = 2;
union
{
double mfValue; // double result direct for performance and memory consumption
const formula::FormulaToken* mpToken; // if not, result token obtained from interpreter
};
sal_uInt16 mnError; // error code
bool mbToken :1; // whether content of union is a token
bool mbEmpty :1; // empty cell result
bool mbEmptyDisplayedAsString :1; // only if mbEmpty
Multiline meMultiline :2; // result is multiline
/** Reset mnError, mbEmpty and mbEmptyDisplayedAsString to their defaults
prior to assigning other types */
inline void ResetToDefaults();
/** If token is of formula::svError set error code and decrement RefCount.
If token is of formula::svEmptyCell set mbEmpty and mbEmptyAsString and
decrement RefCount.
If token is of formula::svDouble set mfValue and decrement RefCount.
Else assign token to mpToken. NULL is valid => svUnknown.
Other member variables are set accordingly.
@precondition: Token MUST had been IncRef'ed prior to this call!
@precondition: An already existing different mpToken MUST had been
DecRef'ed prior to this call, p will be assigned to mpToken if not
resolved.
ATTENTION! Token may get deleted in this call! */
inline void ResolveToken( const formula::FormulaToken * p );
public:
/** Effectively type svUnknown. */
ScFormulaResult()
: mpToken(NULL), mnError(0), mbToken(true),
mbEmpty(false), mbEmptyDisplayedAsString(false),
meMultiline(MULTILINE_UNKNOWN) {}
ScFormulaResult( const ScFormulaResult & r )
: mnError( r.mnError), mbToken( r.mbToken),
mbEmpty( r.mbEmpty),
mbEmptyDisplayedAsString( r.mbEmptyDisplayedAsString),
meMultiline( r.meMultiline)
{
if (mbToken)
{
mpToken = r.mpToken;
if (mpToken)
{
// Since matrix dimension and
// results are assigned to a matrix
// cell formula token we have to
// clone that instead of sharing it.
const ScMatrixFormulaCellToken* pMatFormula =
r.GetMatrixFormulaCellToken();
if (pMatFormula)
mpToken = new ScMatrixFormulaCellToken( *pMatFormula);
mpToken->IncRef();
}
}
else
mfValue = r.mfValue;
}
/** Same comments as for SetToken() apply! */
explicit ScFormulaResult( const formula::FormulaToken* p )
: mnError(0), mbToken(false),
mbEmpty(false), mbEmptyDisplayedAsString(false),
meMultiline(MULTILINE_UNKNOWN)
{
SetToken( p);
}
~ScFormulaResult()
{
if (mbToken && mpToken)
mpToken->DecRef();
}
/** Well, guess what ... */
inline ScFormulaResult & operator=( const ScFormulaResult & r );
/** Assignment as in operator=() but without return */
inline void Assign( const ScFormulaResult & r );
/** Sets a direct double if token type is formula::svDouble, or mbEmpty if
formula::svEmptyCell, else token. If p is NULL, that is set as well, effectively
resulting in GetType()==svUnknown. If the already existing result is
ScMatrixFormulaCellToken, the upper left ist set to token.
ATTENTION! formula::FormulaToken had to be allocated using 'new' and if of type
formula::svDouble and no RefCount was set may not be used after this call
because it was deleted after decrement! */
inline void SetToken( const formula::FormulaToken* p );
/** May be NULL if SetToken() did so, also if type formula::svDouble or formula::svError! */
inline formula::FormulaConstTokenRef GetToken() const;
/** Return upper left token if formula::svMatrixCell, else return GetToken().
May be NULL if SetToken() did so, also if type formula::svDouble or formula::svError! */
inline formula::FormulaConstTokenRef GetCellResultToken() const;
/** Return type of result, including formula::svError, formula::svEmptyCell, formula::svDouble and
formula::svMatrixCell. */
inline formula::StackVar GetType() const;
/** If type is formula::svMatrixCell return the type of upper left element, else
GetType() */
inline formula::StackVar GetCellResultType() const;
/** If type is formula::svEmptyCell (including matrix upper left) and should be
displayed as empty string */
inline bool IsEmptyDisplayedAsString() const;
/** Test for cell result type formula::svDouble, including upper left if
formula::svMatrixCell. Also included is formula::svError for legacy, because previously
an error result was treated like a numeric value at some places in
ScFormulaCell. Also included is formula::svEmptyCell as a reference to an empty
cell usually is treated as numeric 0. Use GetCellResultType() for
details instead. */
inline bool IsValue() const;
/** Determines whether or not the result is a string containing more than
one paragraph */
inline bool IsMultiline() const;
/** Get error code if set or GetCellResultType() is formula::svError or svUnknown,
else 0. */
inline sal_uInt16 GetResultError() const;
/** Set error code, don't touch token or double. */
inline void SetResultError( sal_uInt16 nErr );
/** Set direct double. Shouldn't be used externally except in
ScFormulaCell for rounded CalcAsShown or SetErrCode(). If
ScMatrixFormulaCellToken the token isn't replaced but upper left result
is modified instead, but only if it was of type formula::svDouble before or not
set at all. */
inline void SetDouble( double f );
/** Return value if type formula::svDouble or formula::svHybridCell or formula::svMatrixCell and upper
left formula::svDouble, else 0.0 */
inline double GetDouble() const;
/** Return string if type formula::svString or formula::svHybridCell or formula::svMatrixCell and
upper left formula::svString, else empty string. */
inline const String & GetString() const;
/** Return matrix if type formula::svMatrixCell and ScMatrix present, else NULL. */
inline ScConstMatrixRef GetMatrix() const;
/** Return formula string if type formula::svHybridCell, else empty string. */
inline const String & GetHybridFormula() const;
/** Should only be used by import filters, best in the order
SetHybridDouble(), SetHybridString(), or only SetHybridString() for
formula string to be compiled later. */
inline void SetHybridDouble( double f );
/** Should only be used by import filters, best in the order
SetHybridDouble(), SetHybridString()/SetHybridFormula(), or only
SetHybridFormula() for formula string to be compiled later. */
inline void SetHybridString( const String & rStr );
/** Should only be used by import filters, best in the order
SetHybridDouble(), SetHybridString()/SetHybridFormula(), or only
SetHybridFormula() for formula string to be compiled later. */
inline void SetHybridFormula( const String & rFormula );
/** Get the const ScMatrixFormulaCellToken* if token is of that type, else
NULL. */
inline const ScMatrixFormulaCellToken* GetMatrixFormulaCellToken() const;
/** Get the ScMatrixFormulaCellToken* if token is of that type, else NULL.
Shouldn't be used externally except by ScFormulaCell::SetMatColsRows(). */
inline ScMatrixFormulaCellToken* GetMatrixFormulaCellTokenNonConst();
};
inline void ScFormulaResult::ResetToDefaults()
{
mnError = 0;
mbEmpty = false;
mbEmptyDisplayedAsString = false;
meMultiline = MULTILINE_UNKNOWN;
}
inline void ScFormulaResult::ResolveToken( const formula::FormulaToken * p )
{
ResetToDefaults();
if (!p)
{
mpToken = p;
mbToken = true;
}
else
{
switch (p->GetType())
{
case formula::svError:
mnError = p->GetError();
p->DecRef();
mbToken = false;
// set in case mnError is 0 now, which shouldn't happen but ...
mfValue = 0.0;
meMultiline = MULTILINE_FALSE;
break;
case formula::svEmptyCell:
mbEmpty = true;
mbEmptyDisplayedAsString = static_cast<const ScEmptyCellToken*>(p)->IsDisplayedAsString();
p->DecRef();
mbToken = false;
meMultiline = MULTILINE_FALSE;
break;
case formula::svDouble:
mfValue = p->GetDouble();
p->DecRef();
mbToken = false;
meMultiline = MULTILINE_FALSE;
break;
default:
mpToken = p;
mbToken = true;
}
}
}
inline ScFormulaResult & ScFormulaResult::operator=( const ScFormulaResult & r )
{
Assign( r);
return *this;
}
inline void ScFormulaResult::Assign( const ScFormulaResult & r )
{
if (this == &r)
return;
if (r.mbEmpty)
{
if (mbToken && mpToken)
mpToken->DecRef();
mbToken = false;
mbEmpty = true;
mbEmptyDisplayedAsString = r.mbEmptyDisplayedAsString;
meMultiline = r.meMultiline;
}
else if (r.mbToken)
{
// Matrix formula cell token must be cloned, see copy-ctor.
const ScMatrixFormulaCellToken* pMatFormula =
r.GetMatrixFormulaCellToken();
if (pMatFormula)
SetToken( new ScMatrixFormulaCellToken( *pMatFormula));
else
SetToken( r.mpToken);
}
else
SetDouble( r.mfValue);
// If there was an error there will be an error, no matter what Set...()
// methods did.
mnError = r.mnError;
}
inline void ScFormulaResult::SetToken( const formula::FormulaToken* p )
{
ResetToDefaults();
if (p)
p->IncRef();
// Handle a result obtained from the interpreter to be assigned to a matrix
// formula cell's ScMatrixFormulaCellToken.
ScMatrixFormulaCellToken* pMatFormula = GetMatrixFormulaCellTokenNonConst();
if (pMatFormula)
{
const ScMatrixCellResultToken* pMatResult =
(p && p->GetType() == formula::svMatrixCell ?
dynamic_cast<const ScMatrixCellResultToken*>(p) : NULL);
if (pMatResult)
{
const ScMatrixFormulaCellToken* pNewMatFormula =
dynamic_cast<const ScMatrixFormulaCellToken*>(pMatResult);
if (pNewMatFormula)
{
DBG_ERRORFILE( "ScFormulaResult::SetToken: pNewMatFormula and pMatFormula, overriding matrix formula dimension; intended?");
pMatFormula->SetMatColsRows( pNewMatFormula->GetMatCols(),
pNewMatFormula->GetMatRows());
}
pMatFormula->Assign( *pMatResult);
p->DecRef();
}
else if (p)
{
// This may be the result of some constant expression like
// {="string"} that doesn't result in a matrix but still would
// display the result in all cells of this matrix formula.
pMatFormula->Assign( *p);
p->DecRef();
}
else
{
// NULL result? Well, if you say so ...
pMatFormula->ResetResult();
}
}
else
{
if (mbToken && mpToken)
mpToken->DecRef();
ResolveToken( p);
}
}
inline void ScFormulaResult::SetDouble( double f )
{
ResetToDefaults();
// Handle a result obtained from the interpreter to be assigned to a matrix
// formula cell's ScMatrixFormulaCellToken.
ScMatrixFormulaCellToken* pMatFormula = GetMatrixFormulaCellTokenNonConst();
if (pMatFormula)
pMatFormula->SetUpperLeftDouble( f);
else
{
if (mbToken && mpToken)
mpToken->DecRef();
mfValue = f;
mbToken = false;
meMultiline = MULTILINE_FALSE;
}
}
inline formula::StackVar ScFormulaResult::GetType() const
{
// Order is significant.
if (mnError)
return formula::svError;
if (mbEmpty)
return formula::svEmptyCell;
if (!mbToken)
return formula::svDouble;
if (mpToken)
return mpToken->GetType();
return formula::svUnknown;
}
inline formula::StackVar ScFormulaResult::GetCellResultType() const
{
formula::StackVar sv = GetType();
if (sv == formula::svMatrixCell)
// don't need to test for mpToken here, GetType() already did it
sv = static_cast<const ScMatrixCellResultToken*>(mpToken)->GetUpperLeftType();
return sv;
}
inline bool ScFormulaResult::IsEmptyDisplayedAsString() const
{
if (mbEmpty)
return mbEmptyDisplayedAsString;
if (GetType() == formula::svMatrixCell)
{
// don't need to test for mpToken here, GetType() already did it
const ScEmptyCellToken* p = dynamic_cast<const ScEmptyCellToken*>(
static_cast<const ScMatrixCellResultToken*>(
mpToken)->GetUpperLeftToken().operator->());
if (p)
return p->IsDisplayedAsString();
}
return false;
}
inline bool ScFormulaResult::IsValue() const
{
formula::StackVar sv = GetCellResultType();
return sv == formula::svDouble || sv == formula::svError || sv == formula::svEmptyCell;
}
inline bool ScFormulaResult::IsMultiline() const
{
if (meMultiline == MULTILINE_UNKNOWN)
{
const String& rStr = GetString();
if (rStr.Len() && rStr.Search( _LF ) != STRING_NOTFOUND)
const_cast<ScFormulaResult*>(this)->meMultiline = MULTILINE_TRUE;
else
const_cast<ScFormulaResult*>(this)->meMultiline = MULTILINE_FALSE;
}
return meMultiline == MULTILINE_TRUE;
}
inline sal_uInt16 ScFormulaResult::GetResultError() const
{
if (mnError)
return mnError;
formula::StackVar sv = GetCellResultType();
if (sv == formula::svError)
{
if (GetType() == formula::svMatrixCell)
// don't need to test for mpToken here, GetType() already did it
return static_cast<const ScMatrixCellResultToken*>(mpToken)->
GetUpperLeftToken()->GetError();
if (mpToken)
return mpToken->GetError();
}
return 0;
}
inline void ScFormulaResult::SetResultError( sal_uInt16 nErr )
{
mnError = nErr;
}
inline formula::FormulaConstTokenRef ScFormulaResult::GetToken() const
{
if (mbToken)
return mpToken;
return NULL;
}
inline formula::FormulaConstTokenRef ScFormulaResult::GetCellResultToken() const
{
if (GetType() == formula::svMatrixCell)
// don't need to test for mpToken here, GetType() already did it
return static_cast<const ScMatrixCellResultToken*>(mpToken)->GetUpperLeftToken();
return GetToken();
}
inline double ScFormulaResult::GetDouble() const
{
if (mbToken)
{
// Should really not be of type formula::svDouble here.
if (mpToken)
{
switch (mpToken->GetType())
{
case formula::svHybridCell:
return mpToken->GetDouble();
case formula::svMatrixCell:
{
const ScMatrixCellResultToken* p =
static_cast<const ScMatrixCellResultToken*>(mpToken);
if (p->GetUpperLeftType() == formula::svDouble)
return p->GetUpperLeftToken()->GetDouble();
}
break;
default:
; // nothing
}
}
return 0.0;
}
if (mbEmpty)
return 0.0;
return mfValue;
}
inline const String & ScFormulaResult::GetString() const
{
if (mbToken && mpToken)
{
switch (mpToken->GetType())
{
case formula::svString:
case formula::svHybridCell:
return mpToken->GetString();
case formula::svMatrixCell:
{
const ScMatrixCellResultToken* p =
static_cast<const ScMatrixCellResultToken*>(mpToken);
if (p->GetUpperLeftType() == formula::svString)
return p->GetUpperLeftToken()->GetString();
}
break;
default:
; // nothing
}
}
return EMPTY_STRING;
}
inline ScConstMatrixRef ScFormulaResult::GetMatrix() const
{
if (GetType() == formula::svMatrixCell)
return static_cast<const ScToken*>(mpToken)->GetMatrix();
return NULL;
}
inline const String & ScFormulaResult::GetHybridFormula() const
{
if (GetType() == formula::svHybridCell)
{
const ScHybridCellToken* p = dynamic_cast<const ScHybridCellToken*>(mpToken);
if (p)
return p->GetFormula();
}
return EMPTY_STRING;
}
inline void ScFormulaResult::SetHybridDouble( double f )
{
ResetToDefaults();
if (mbToken && mpToken)
{
String aString( GetString());
String aFormula( GetHybridFormula());
mpToken->DecRef();
mpToken = new ScHybridCellToken( f, aString, aFormula);
mpToken->IncRef();
}
else
{
mfValue = f;
mbToken = false;
meMultiline = MULTILINE_FALSE;
}
}
inline void ScFormulaResult::SetHybridString( const String & rStr )
{
// Obtain values before changing anything.
double f = GetDouble();
String aFormula( GetHybridFormula());
ResetToDefaults();
if (mbToken && mpToken)
mpToken->DecRef();
mpToken = new ScHybridCellToken( f, rStr, aFormula);
mpToken->IncRef();
mbToken = true;
}
inline void ScFormulaResult::SetHybridFormula( const String & rFormula )
{
// Obtain values before changing anything.
double f = GetDouble();
String aStr( GetString());
ResetToDefaults();
if (mbToken && mpToken)
mpToken->DecRef();
mpToken = new ScHybridCellToken( f, aStr, rFormula);
mpToken->IncRef();
mbToken = true;
}
inline const ScMatrixFormulaCellToken* ScFormulaResult::GetMatrixFormulaCellToken() const
{
return (GetType() == formula::svMatrixCell ?
dynamic_cast<const ScMatrixFormulaCellToken*>(mpToken) : NULL);
}
inline ScMatrixFormulaCellToken* ScFormulaResult::GetMatrixFormulaCellTokenNonConst()
{
return const_cast<ScMatrixFormulaCellToken*>( GetMatrixFormulaCellToken());
}
#endif // SC_FORMULARESULT_HXX