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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#pragma once
#include "global.hxx"
#include <svl/sharedstring.hxx>
#include <variant>
class ScDocument;
class ScFormulaCell;
class EditTextObject;
class ScColumn;
struct ScRefCellValue;
namespace sc {
struct ColumnBlockPosition;
}
/**
* Store arbitrary cell value of any kind. It only stores cell value and
* nothing else. It creates a copy of the original cell value, and manages
* the life cycle of the copied value.
*/
struct ScCellValue
{
private:
/// std::monostate is there to indicate CellType::NONE
std::variant<std::monostate, double, svl::SharedString, EditTextObject*, ScFormulaCell*> maData;
void reset_to_empty();
public:
SC_DLLPUBLIC ScCellValue();
ScCellValue( const ScRefCellValue& rCell );
ScCellValue( double fValue );
ScCellValue( const svl::SharedString& rString );
ScCellValue( std::unique_ptr<EditTextObject> );
ScCellValue( const ScCellValue& r );
ScCellValue(ScCellValue&& r) noexcept;
SC_DLLPUBLIC ~ScCellValue();
SC_DLLPUBLIC void clear() noexcept;
SC_DLLPUBLIC void set( double fValue );
SC_DLLPUBLIC void set( const svl::SharedString& rStr );
void set( const EditTextObject& rEditText );
SC_DLLPUBLIC void set( std::unique_ptr<EditTextObject> );
SC_DLLPUBLIC void set( ScFormulaCell* pFormula );
SC_DLLPUBLIC CellType getType() const;
double getDouble() const { return std::get<double>(maData); }
ScFormulaCell* getFormula() const { return std::get<ScFormulaCell*>(maData); }
const svl::SharedString* getSharedString() const { return &std::get<svl::SharedString>(maData); }
EditTextObject* getEditText() const { return std::get<EditTextObject*>(maData); }
EditTextObject* releaseEditText() { auto p = getEditText(); maData = static_cast<EditTextObject*>(nullptr); return p; }
ScFormulaCell* releaseFormula() { auto p = getFormula(); maData = static_cast<ScFormulaCell*>(nullptr); return p; }
/**
* Take cell value from specified position in specified document.
*/
void assign( const ScDocument& rDoc, const ScAddress& rPos );
void assign(const ScCellValue& rOther, ScDocument& rDestDoc, ScCloneFlags nCloneFlags = ScCloneFlags::Default);
/**
* Set cell value at specified position in specified document.
*/
void commit( ScDocument& rDoc, const ScAddress& rPos ) const;
void commit( ScColumn& rColumn, SCROW nRow ) const;
/**
* Set cell value at specified position in specified document. But unlike
* commit(), this method sets the original value to the document without
* copying. After this call, the value gets cleared.
*/
void release( ScDocument& rDoc, const ScAddress& rPos );
void release( ScColumn& rColumn, SCROW nRow, sc::StartListeningType eListenType = sc::SingleCellListening );
OUString getString( const ScDocument& rDoc ) const;
SC_DLLPUBLIC bool isEmpty() const;
bool equalsWithoutFormat( const ScCellValue& r ) const;
ScCellValue& operator= ( const ScCellValue& r );
ScCellValue& operator=(ScCellValue&& r) noexcept;
ScCellValue& operator= ( const ScRefCellValue& r );
void swap( ScCellValue& r );
};
/**
* This is very similar to ScCellValue, except that it references the
* original value instead of copying it. As such, don't hold an instance of
* this class any longer than necessary, and absolutely not after the
* original cell has been destroyed.
*/
struct SC_DLLPUBLIC ScRefCellValue
{
private:
CellType meType;
union {
double mfValue;
const svl::SharedString* mpString;
const EditTextObject* mpEditText;
ScFormulaCell* mpFormula;
};
public:
ScRefCellValue();
ScRefCellValue( double fValue );
ScRefCellValue( const svl::SharedString* pString );
ScRefCellValue( const EditTextObject* pEditText );
ScRefCellValue( ScFormulaCell* pFormula );
/**
* Take cell value from specified position in specified document.
*/
ScRefCellValue( ScDocument& rDoc, const ScAddress& rPos );
ScRefCellValue( ScDocument& rDoc, const ScAddress& rPos, sc::ColumnBlockPosition& rBlockPos );
void clear();
CellType getType() const { return meType; }
double getDouble() const { assert(meType == CELLTYPE_VALUE); return mfValue; }
const svl::SharedString* getSharedString() const { assert(meType == CELLTYPE_STRING); return mpString; }
const EditTextObject* getEditText() const { assert(meType == CELLTYPE_EDIT); return mpEditText; }
ScFormulaCell* getFormula() const { assert(meType == CELLTYPE_FORMULA); return mpFormula; }
/**
* Take cell value from specified position in specified document.
*/
void assign( ScDocument& rDoc, const ScAddress& rPos );
void assign( ScDocument& rDoc, const ScAddress& rPos, sc::ColumnBlockPosition& rBlockPos );
/**
* Set cell value at specified position in specified document.
*/
void commit( ScDocument& rDoc, const ScAddress& rPos ) const;
bool hasString() const;
bool hasNumeric() const;
bool hasError() const;
double getValue();
/**
* Retrieve a numeric value without modifying the states of any objects in
* the referenced document store.
*/
double getRawValue() const;
/**
* Retrieve string value.
*
* Note that this method is NOT thread-safe.
*
* @param pDoc
* Needed to resolve EditCells' field contents, obtain a
* ScFieldEditEngine from that document. May be NULL if there is
* no ScDocument in the calling context but then the document
* specific fields can not be resolved. See
* ScEditUtil::GetString().
*/
OUString getString( const ScDocument* pDoc ) const;
/**
* Retrieve a string value without modifying the states of any objects in
* the referenced document store.
*
* This method is thread-safe.
*/
OUString getRawString( const ScDocument& rDoc ) const;
bool isEmpty() const;
bool hasEmptyValue();
bool equalsWithoutFormat( const ScRefCellValue& r ) const;
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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