PropertyProxy.h

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#pragma once 
 
#include <Core/Property.h>
 
 
namespace Core
{
/*@brief
 * A  PropertyProxy serves as a placeholder for another property (usually in another class).
 * It is used to mimic the Properties update mechanism even if the class it is used in does
 * not have a property of this king.
 * P.e. it can be used in an Element to do as if it would have a PropertyShape. This way
 * the updating of shapes can be more easily handled in App.Element.
 */
 
class LX_CORE_EXPORT PropertyProxy : public Core::Property
{
    TYPESYSTEM_HEADER();
 
public:
    inline void setValue(bool b);
    bool setValueFromVariant(const Core::Variant& value);
    void copyValue(Core::Property* p);
 
    bool getValue() const;
    Core::Variant getVariant(void) const;
 
    virtual void save(Base::AbstractWriter& writer, Base::PersistenceVersion& save_version);
    inline virtual void restore(Base::AbstractXMLReader& reader, Base::PersistenceVersion& version);
    virtual bool isEqual(const Property*) const;
    virtual Core::Property* copy(void) const override;
    virtual void paste(const Core::Property& from) override;
 
protected:
    bool _nValue = false;
};
 
DECLARE_PROPERTY_FACTORY(PropertyProxy_Factory, Core::PropertyProxy);
 
}  // namespace Core