439 lines
12 KiB
C++
439 lines
12 KiB
C++
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// xlsxcellformula.cpp
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#include "xlsxcellformula.h"
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#include "xlsxcellformula_p.h"
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#include "xlsxutility_p.h"
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#include <QDebug>
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#include <QObject>
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#include <QString>
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#include <QXmlStreamReader>
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#include <QXmlStreamWriter>
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#include <QtGlobal>
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QT_BEGIN_NAMESPACE_XLSX
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CellFormulaPrivate::CellFormulaPrivate(const QString &formula_,
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const CellRange &ref_,
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CellFormula::FormulaType type_)
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: formula(formula_)
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, type(type_)
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, reference(ref_)
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, ca(false)
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, si(0)
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{
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// Remove the formula '=' sign if exists
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if (formula.startsWith(QLatin1String("=")))
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formula.remove(0, 1);
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else if (formula.startsWith(QLatin1String("{=")) && formula.endsWith(QLatin1String("}")))
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formula = formula.mid(2, formula.length() - 3);
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}
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CellFormulaPrivate::CellFormulaPrivate(const CellFormulaPrivate &other)
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: QSharedData(other)
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, formula(other.formula)
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, type(other.type)
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, reference(other.reference)
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, ca(other.ca)
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, si(other.si)
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{
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}
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CellFormulaPrivate::~CellFormulaPrivate()
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{
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}
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/*!
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\class CellFormula
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\inmodule QtXlsx
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\brief The CellFormula class provides a API that is used to handle the cell formula.
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*/
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/*!
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\enum CellFormula::FormulaType
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\value NormalType
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\value ArrayType
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\value DataTableType
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\value SharedType
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*/
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/*!
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* Creates a new formula.
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*/
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CellFormula::CellFormula()
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{
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// The d pointer is initialized with a null pointer
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}
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/*!
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* Creates a new formula with the given \a formula and \a type.
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*/
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CellFormula::CellFormula(const char *formula, FormulaType type)
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: d(new CellFormulaPrivate(QString::fromLatin1(formula), CellRange(), type))
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{
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}
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/*!
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* Creates a new formula with the given \a formula and \a type.
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*/
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CellFormula::CellFormula(const QString &formula, FormulaType type)
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: d(new CellFormulaPrivate(formula, CellRange(), type))
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{
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}
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/*!
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* Creates a new formula with the given \a formula, \a ref and \a type.
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*/
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CellFormula::CellFormula(const QString &formula, const CellRange &ref, FormulaType type)
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: d(new CellFormulaPrivate(formula, ref, type))
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{
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}
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/*!
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Creates a new formula with the same attributes as the \a other formula.
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*/
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CellFormula::CellFormula(const CellFormula &other)
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: d(other.d)
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{
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}
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/*!
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Assigns the \a other formula to this formula, and returns a
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reference to this formula.
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*/
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CellFormula &CellFormula::operator=(const CellFormula &other)
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{
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d = other.d;
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return *this;
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}
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/*!
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* Destroys this formula.
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*/
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CellFormula::~CellFormula()
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{
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}
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/*!
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* Returns the type of the formula.
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*/
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CellFormula::FormulaType CellFormula::formulaType() const
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{
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return d ? d->type : NormalType;
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}
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/*!
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* Returns the contents of the formula.
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*/
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QString CellFormula::formulaText() const
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{
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return d ? d->formula : QString();
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}
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/*!
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* Returns the reference cells of the formula. For normal formula,
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* this will return an invalid CellRange object.
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*/
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CellRange CellFormula::reference() const
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{
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return d ? d->reference : CellRange();
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}
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/*!
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* Returns whether the formula is valid.
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*/
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bool CellFormula::isValid() const
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{
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return d;
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}
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/*!
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* Returns the shared index for shared formula.
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*/
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int CellFormula::sharedIndex() const
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{
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return d && d->type == SharedType ? d->si : (-1);
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}
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/* aca (Always Calculate Array) // not-implemented attribute
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*
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* Only applies to array formulas.
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*
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* true indicates that the entire array shall be calculated in full.
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* If false the individual cells of the array shall be calculated as needed.
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*
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* The aca value shall be ignored unless the value of the corresponding
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* t attribute is array.
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*
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* [Note: The primary case where an array formula must be calculated in
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* part instead of in full is when some cells in the array depend on other
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* cells that are semi-calculated, e.g., contains the function =(). end note]
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*
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* The possible values for this attribute are defined by the W3C XML Schema
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* boolean datatype.
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*/
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/* bx (Assigns Value to Name) // not-implemented attribute
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*
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* Specifies that this formula assigns a value to a name.
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*
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* The possible values for this attribute are defined by the W3C XML
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* Schema boolean datatype.
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*/
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/* del1 (Input 1 Deleted) // not-implemented attribute
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*
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* Whether the first input cell for data table has been deleted.
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* Applies to data table formula only. Written on master cell of data table
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* formula only.
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*
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* The possible values for this attribute are defined by the W3C XML Schema
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* boolean datatype.
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*/
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/* del2 (Input 2 Deleted) // not-implemented attribute
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*
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* Whether the second input cell for data table has been deleted.
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* Applies to data table formula only. Written on master cell of data
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* table formula only.
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*
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* The possible values for this attribute are defined by the W3C XML Schema
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* boolean datatype.
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*/
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/* dt2D (Data Table 2-D) // not-implemented attribute
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*
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* Data table is two-dimensional. Only applies to the data tables function.
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* Written on master cell of data table formula only.
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*
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* The possible values for this attribute are defined by the W3C XML Schema
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* boolean datatype.
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*/
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/* dtr (Data Table Row) // not-implemented attribute
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*
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* true if one-dimensional data table is a row, otherwise it's a column.
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* Only applies to the data tables function. Written on master cell of data
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* table formula only.
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*
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* The possible values for this attribute are defined by the W3C XML Schema
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* boolean datatype.
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*/
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/* r1 (Data Table Cell 1) // not-implemented attribute
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*
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* First input cell for data table. Only applies to the data tables array
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* function "TABLE()". Written on master cell of data table formula only.
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*
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* The possible values for this attribute are defined by the ST_CellRef
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* simple type (§18.18.7).
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*/
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/* r2 (Input Cell 2) // not-implemented attribute
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*
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* Second input cell for data table when dt2D is '1'. Only applies to the
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* data tables array function "TABLE()".Written on master cell of data table
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* formula only.
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*
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* The possible values for this attribute are defined by the ST_CellRef
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* simple type (§18.18.7).
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*/
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/*!
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* \internal
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* \remark pair with loadFromXml()
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*/
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bool CellFormula::saveToXml(QXmlStreamWriter &writer) const
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{
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// t (Formula Type)
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//
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// Type of formula.
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// The possible values for this attribute are defined by the
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// ST_CellFormulaType simple type (§18.18.6).
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//
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// 18.18.6 ST_CellFormulaType (Formula Type)
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// array (Array Formula)
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// dataTable (Table Formula)
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// normal (Normal)
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// shared (Shared Formula)
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QString t;
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switch (d->type) {
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case CellFormula::ArrayType:
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t = QStringLiteral("array");
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break;
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case CellFormula::SharedType:
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t = QStringLiteral("shared");
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break;
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case CellFormula::NormalType:
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t = QStringLiteral("normal");
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break;
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case CellFormula::DataTableType:
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t = QStringLiteral("dataTable");
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break;
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default: // undefined type
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return false;
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break;
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}
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// f (Formula)
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//
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// Formula for the cell. The formula expression is contained in the
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// character node of this element.
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writer.writeStartElement(QStringLiteral("f"));
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if (!t.isEmpty()) {
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writer.writeAttribute(QStringLiteral("t"), t); // write type(t)
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}
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// ref (Range of Cells)
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//
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// Range of cells which the formula applies to.
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// Only required for shared formula, array formula or data table.
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// Only written on the master formula,
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// not subsequent formulas belonging to the same shared group, array,
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// or data table.
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// The possible values for this attribute are defined by the ST_Ref
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// simple type (§18.18.62).
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if (d->type == CellFormula::SharedType || d->type == CellFormula::ArrayType ||
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d->type == CellFormula::DataTableType) {
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if (d->reference.isValid()) {
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writer.writeAttribute(QStringLiteral("ref"), d->reference.toString());
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}
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}
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// ca (Calculate Cell)
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//
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// Indicates that this formula needs to be recalculated the next time
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// calculation is performed. [Example: This is always set on volatile
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// functions, like =(), and circular references. end example]
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// The possible values for this attribute are defined by the W3C XML
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// Schema boolean datatype.
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//
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// 3.2.2 boolean
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// 3.2.2.1 Lexical representation
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// An instance of a datatype that is defined as ·boolean· can have the
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// following legal literals {true, false, 1, 0}.
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if (d->ca) {
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writer.writeAttribute(QStringLiteral("ca"), QStringLiteral("1"));
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}
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// si (Shared Group Index)
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// Optional attribute to optimize load performance by sharing formulas.
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//
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// When a formula is a shared formula (t value is shared) then this value
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// indicates the group to which this particular cell's formula belongs. The
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// first formula in a group of shared formulas is saved in the f element.
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// This is considered the 'master' formula cell. Subsequent cells sharing
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// this formula need not have the formula written in their f element.
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// Instead, the attribute si value for a particular cell is used to figure
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// what the formula expression should be based on the cell's relative
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// location to the master formula cell.
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if (d->type == CellFormula::SharedType) {
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int si = d->si;
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writer.writeAttribute(QStringLiteral("si"), QString::number(si));
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}
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if (!d->formula.isEmpty()) {
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QString strFormula = d->formula;
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writer.writeCharacters(strFormula); // write formula
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}
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writer.writeEndElement(); // f
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return true;
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}
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/*!
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* \internal
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* \remark pair with saveToXml()
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*/
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bool CellFormula::loadFromXml(QXmlStreamReader &reader)
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{
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Q_ASSERT(reader.name() == QLatin1String("f"));
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if (!d)
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d = new CellFormulaPrivate(QString(), CellRange(), NormalType);
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QXmlStreamAttributes attributes = reader.attributes();
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QString typeString = attributes.value(QLatin1String("t")).toString();
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// branch: shared-formula
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//
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if (typeString == QLatin1String("array")) {
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d->type = ArrayType;
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} else if (typeString == QLatin1String("shared")) {
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d->type = SharedType;
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} else if (typeString == QLatin1String("normal")) {
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d->type = NormalType;
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} else if (typeString == QLatin1String("dataTable")) {
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d->type = DataTableType;
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} else {
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/*
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// undefined type
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// qDebug() << "Undefined type" << typeString;
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return false;
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// */
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// dev40 {{
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// https://github.com/QtExcel/QXlsx/issues/38
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d->type = NormalType; // Change: normal Type is not mentioned in the xml file!!!!!
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// }}
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}
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// branch: shared-formula
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//
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// ref (Range of Cells)
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// Range of cells which the formula applies to.
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// Only required for shared formula, array formula or data table.
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if (d->type == CellFormula::SharedType || d->type == CellFormula::ArrayType ||
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d->type == CellFormula::DataTableType) {
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if (attributes.hasAttribute(QLatin1String("ref"))) {
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QString refString = attributes.value(QLatin1String("ref")).toString();
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d->reference = CellRange(refString);
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}
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}
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|
|
|
||
|
|
// branch: shared-formula
|
||
|
|
//
|
||
|
|
// si (Shared Group Index)
|
||
|
|
// Optional attribute to optimize load performance by sharing formulas.
|
||
|
|
// When a formula is a shared formula (t value is shared) then this value
|
||
|
|
// indicates the group to which this particular cell's formula belongs.
|
||
|
|
if (d->type == CellFormula::SharedType) {
|
||
|
|
QString ca = attributes.value(QLatin1String("si")).toString();
|
||
|
|
d->ca = parseXsdBoolean(ca, false);
|
||
|
|
|
||
|
|
if (attributes.hasAttribute(QLatin1String("si"))) {
|
||
|
|
d->si = attributes.value(QLatin1String("si")).toInt();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
d->formula = reader.readElementText(); // read formula
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* \internal
|
||
|
|
*/
|
||
|
|
bool CellFormula::operator==(const CellFormula &formula) const
|
||
|
|
{
|
||
|
|
return d->formula == formula.d->formula && d->type == formula.d->type && d->si == formula.d->si;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* \internal
|
||
|
|
*/
|
||
|
|
bool CellFormula::operator!=(const CellFormula &formula) const
|
||
|
|
{
|
||
|
|
return d->formula != formula.d->formula || d->type != formula.d->type || d->si != formula.d->si;
|
||
|
|
}
|
||
|
|
|
||
|
|
QT_END_NAMESPACE_XLSX
|