EnhancedCustomShapeFunctionParser.hxx

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#ifndef INCLUDED_SVX_ENHANCEDCUSTOMSHAPEFUNCTIONPARSER_HXX
#define INCLUDED_SVX_ENHANCEDCUSTOMSHAPEFUNCTIONPARSER_HXX
 
#include <config_options.h>
#include <sal/config.h>
#include <com/sun/star/drawing/EnhancedCustomShapeParameter.hpp>
#include <memory>
#include <ostream>
#include <string_view>
#include <vector>
 
#include <svx/svxdllapi.h>
 
struct EnhancedCustomShapeEquation
{
    sal_Int32   nOperation;
    sal_Int32   nPara[ 3 ];
 
    EnhancedCustomShapeEquation() :
        nOperation  ( 0 )
        {
            nPara[ 0 ] = nPara[ 1 ] = nPara[ 2 ] = 0;
        }
};
 
class EnhancedCustomShape2d;
 
namespace EnhancedCustomShape {
 
enum class ExpressionFunct
{
    Const,
 
    EnumPi,
    EnumLeft,
    EnumTop,
    EnumRight,
    EnumBottom,
    EnumXStretch,
    EnumYStretch,
    EnumHasStroke,
    EnumHasFill,
    EnumWidth,
    EnumHeight,
    EnumLogWidth,
    EnumLogHeight,
    EnumAdjustment,
    EnumEquation,
 
    UnaryAbs,
    UnarySqrt,
    UnarySin,
    UnaryCos,
    UnaryTan,
    UnaryAtan,
    UnaryNeg,
 
    BinaryPlus,
    BinaryMinus,
    BinaryMul,
    BinaryDiv,
    BinaryMin,
    BinaryMax,
    BinaryAtan2,
 
    TernaryIf
};
 
template< typename charT, typename traits >
inline std::basic_ostream<charT, traits> & operator <<(
    std::basic_ostream<charT, traits> & stream, const ExpressionFunct& eFunc )
{
    switch (eFunc)
    {
    case ExpressionFunct::Const : return stream << "const";
 
    case ExpressionFunct::EnumPi : return stream << "pi";
    case ExpressionFunct::EnumLeft : return stream << "left";
    case ExpressionFunct::EnumTop : return stream << "top";
    case ExpressionFunct::EnumRight : return stream << "right";
    case ExpressionFunct::EnumBottom : return stream << "bottom";
    case ExpressionFunct::EnumXStretch : return stream << "xstretch";
    case ExpressionFunct::EnumYStretch : return stream << "ystretch";
    case ExpressionFunct::EnumHasStroke : return stream << "hasstroke";
    case ExpressionFunct::EnumHasFill : return stream << "hasfill";
    case ExpressionFunct::EnumWidth : return stream << "width";
    case ExpressionFunct::EnumHeight : return stream << "height";
    case ExpressionFunct::EnumLogWidth : return stream << "logwidth";
    case ExpressionFunct::EnumLogHeight : return stream << "logheight";
    case ExpressionFunct::EnumAdjustment : return stream << "adjustment";
    case ExpressionFunct::EnumEquation : return stream << "equation";
 
    case ExpressionFunct::UnaryAbs : return stream << "abs";
    case ExpressionFunct::UnarySqrt : return stream << "sqrt";
    case ExpressionFunct::UnarySin : return stream << "sin";
    case ExpressionFunct::UnaryCos : return stream << "cos";
    case ExpressionFunct::UnaryTan : return stream << "tan";
    case ExpressionFunct::UnaryAtan : return stream << "atan";
    case ExpressionFunct::UnaryNeg : return stream << "neg";
 
    case ExpressionFunct::BinaryPlus : return stream << "plus";
    case ExpressionFunct::BinaryMinus : return stream << "minus";
    case ExpressionFunct::BinaryMul : return stream << "mul";
    case ExpressionFunct::BinaryDiv : return stream << "div";
    case ExpressionFunct::BinaryMin : return stream << "min";
    case ExpressionFunct::BinaryMax : return stream << "max";
    case ExpressionFunct::BinaryAtan2 : return stream << "atan2";
 
    case ExpressionFunct::TernaryIf : return stream << "if";
 
    default: return stream << "?(" << static_cast<int>(eFunc) << ")";
    }
}
 
#define EXPRESSION_FLAG_SUMANGLE_MODE 1
 
SVXCORE_DLLPUBLIC void FillEquationParameter( const css::drawing::EnhancedCustomShapeParameter&, const sal_Int32, EnhancedCustomShapeEquation& );
 
class SAL_DLLPUBLIC_RTTI ExpressionNode
{
public:
    virtual ~ExpressionNode();
 
    virtual bool isConstant() const = 0;
 
    virtual double operator()() const = 0;
 
    virtual ExpressionFunct getType() const = 0;
 
    virtual css::drawing::EnhancedCustomShapeParameter fillNode(
        std::vector< EnhancedCustomShapeEquation >& rEquations, ExpressionNode* pOptionalArg, sal_uInt32 nFlags ) = 0;
};
 
struct ParseError
{
    ParseError( const char* ) {}
};
 
class FunctionParser
{
public:
 
    UNLESS_MERGELIBS(SVXCORE_DLLPUBLIC) static std::shared_ptr<ExpressionNode> const & parseFunction( std::u16string_view rFunction, const EnhancedCustomShape2d& rCustoShape );
 
    // this is a singleton
    FunctionParser() = delete;
    FunctionParser(const FunctionParser&) = delete;
    FunctionParser& operator=( const FunctionParser& ) = delete;
};
 
}
 
#endif // INCLUDED_SVX_ENHANCEDCUSTOMSHAPEFUNCTIONPARSER_HXX
 
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