std_optional_variants.h

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/*
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 *
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 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
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 *
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 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
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 */
 
#ifndef STD_OPTIONAL_VARIANT_H
#define STD_OPTIONAL_VARIANT_H
 
#include <optional>
#include <wx/variant.h>
 
/*
 * Wrappers to allow use of std::optional<int> and std::optional<double> with the wxVariant
 * system.
 */
 
class STD_OPTIONAL_INT_VARIANT_DATA : public wxVariantData
{
public:
 STD_OPTIONAL_INT_VARIANT_DATA();
 
 STD_OPTIONAL_INT_VARIANT_DATA( std::optional<int> aValue );
 
 bool Eq( wxVariantData& aOther ) const override;
 
 wxString GetType() const override { return wxT( "std::optional<int>" ); }
 
 bool GetAsAny( wxAny* aAny ) const override
 {
 *aAny = m_value;
 return true;
 }
 
 std::optional<int> Value() const
 {
 return m_value;
 }
 
 static wxVariantData* VariantDataFactory( const wxAny& aAny )
 {
 return new STD_OPTIONAL_INT_VARIANT_DATA( aAny.As<std::optional<int>>() );
 }
 
protected:
 std::optional<int> m_value;
};
 
 
class STD_OPTIONAL_DOUBLE_VARIANT_DATA : public wxVariantData
{
public:
 STD_OPTIONAL_DOUBLE_VARIANT_DATA();
 
 STD_OPTIONAL_DOUBLE_VARIANT_DATA( std::optional<double> aValue );
 
 bool Eq( wxVariantData& aOther ) const override;
 
 wxString GetType() const override { return wxT( "std::optional<double>" ); }
 
 bool GetAsAny( wxAny* aAny ) const override
 {
 *aAny = m_value;
 return true;
 }
 
 std::optional<double> Value() const
 {
 return m_value;
 }
 
 static wxVariantData* VariantDataFactory( const wxAny& aAny )
 {
 return new STD_OPTIONAL_DOUBLE_VARIANT_DATA( aAny.As<std::optional<double>>() );
 }
 
protected:
 std::optional<double> m_value;
};
 
#endif //STD_OPTIONAL_VARIANT_H