XII Release 0.1.0
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xiiEnumAccessorProperty< Class, EnumType, Type > Class Template Reference

[internal] An implementation of xiiTypedEnumProperty that uses custom getter / setter functions to access an enum property. More...

#include <EnumProperty.h>

Inheritance diagram for xiiEnumAccessorProperty< Class, EnumType, Type >:
[legend]

Public Types

using RealType = typename xiiTypeTraits<Type>::NonConstReferenceType
 
using GetterFunc = Type (Class::*)() const
 
using SetterFunc = void (Class::*)(Type value)
 

Public Member Functions

 xiiEnumAccessorProperty (xiiStringView sPropertyName, GetterFunc getter, SetterFunc setter)
 Constructor.
 
virtual void * GetPropertyPointer (const void *pInstance) const override
 Returns a pointer to the property data or nullptr. If a valid pointer is returned, that pointer and the information from GetSpecificType() can be used to step deeper into the type (if required).
 
virtual xiiInt64 GetValue (const void *pInstance) const override
 Returns the value of the property. Pass the instance pointer to the surrounding class along.
 
virtual void SetValue (void *pInstance, xiiInt64 value) const override
 Modifies the value of the property. Pass the instance pointer to the surrounding class along.
 
- Public Member Functions inherited from xiiTypedEnumProperty< EnumType >
 xiiTypedEnumProperty (xiiStringView sPropertyName)
 Passes the property name through to xiiAbstractEnumerationProperty.
 
virtual const xiiRTTIGetSpecificType () const override
 Returns the actual type of the property. You can then test whether it derives from xiiEnumBase or xiiBitflagsBase to determine whether we are dealing with an enum or bitflags property.
 
- Public Member Functions inherited from xiiAbstractEnumerationProperty
 xiiAbstractEnumerationProperty (xiiStringView sPropertyName)
 Passes the property name through to xiiAbstractMemberProperty.
 
virtual void GetValuePtr (const void *pInstance, void *pObject) const override
 Writes the value of this property in pInstance to pObject. pObject needs to point to an instance of this property's type.
 
virtual void SetValuePtr (void *pInstance, const void *pObject) const override
 Sets the value of pObject to the property in pInstance. pObject needs to point to an instance of this property's type.
 
- Public Member Functions inherited from xiiAbstractMemberProperty
 xiiAbstractMemberProperty (xiiStringView sPropertyName)
 Passes the property name through to xiiAbstractProperty.
 
virtual xiiPropertyCategory::Enum GetCategory () const override
 Returns xiiPropertyCategory::Member.
 
- Public Member Functions inherited from xiiAbstractProperty
 xiiAbstractProperty (xiiStringView sPropertyName)
 The constructor must get the name of the property. The string must be a compile-time constant.
 
xiiStringView GetPropertyName () const
 Returns the name of the property.
 
const xiiBitflags< xiiPropertyFlags > & GetFlags () const
 Returns the flags of the property.
 
xiiAbstractPropertyAddFlags (xiiBitflags< xiiPropertyFlags > flags)
 Adds flags to the property. Returns itself to allow to be called during initialization.
 
xiiAbstractPropertyAddAttributes (xiiPropertyAttribute *pAttrib1, xiiPropertyAttribute *pAttrib2=nullptr, xiiPropertyAttribute *pAttrib3=nullptr, xiiPropertyAttribute *pAttrib4=nullptr, xiiPropertyAttribute *pAttrib5=nullptr, xiiPropertyAttribute *pAttrib6=nullptr)
 Adds attributes to the property. Returns itself to allow to be called during initialization. Allocate an attribute using standard 'new'.
 
xiiArrayPtr< const xiiPropertyAttribute *const > GetAttributes () const
 Returns the array of property attributes.
 
template<typename Type>
const Type * GetAttributeByType () const
 Returns the first attribute that derives from the given type, or nullptr if nothing is found.
 

Additional Inherited Members

- Protected Attributes inherited from xiiAbstractProperty
xiiBitflags< xiiPropertyFlagsm_Flags
 
xiiStringView m_sPropertyName
 
xiiHybridArray< const xiiPropertyAttribute *, 2U, xiiStaticAllocatorWrapperm_Attributes
 

Detailed Description

template<typename Class, typename EnumType, typename Type>
class xiiEnumAccessorProperty< Class, EnumType, Type >

[internal] An implementation of xiiTypedEnumProperty that uses custom getter / setter functions to access an enum property.

Member Function Documentation

◆ GetPropertyPointer()

template<typename Class, typename EnumType, typename Type>
virtual void * xiiEnumAccessorProperty< Class, EnumType, Type >::GetPropertyPointer ( const void * pInstance) const
inlineoverridevirtual

Returns a pointer to the property data or nullptr. If a valid pointer is returned, that pointer and the information from GetSpecificType() can be used to step deeper into the type (if required).

You need to pass the pointer to an object on which you are operating. This function is mostly of interest when the property itself is a compound type (a struct or class). If it is a simple type (int, float, etc.) it doesn't make much sense to retrieve the pointer.

For example GetSpecificType() might return that a property is of type xiiVec3. In that case one might either stop and just use the code to handle xiiVec3 types, or one might continue and enumerate all sub-properties (x, y and z) as well.

Note
There is no guarantee that this function returns a non-nullptr pointer, independent of the type. When a property uses custom 'accessors' (functions to get / set the property value), it is not possible (or useful) to get the property pointer.

Implements xiiAbstractMemberProperty.

◆ GetValue()

template<typename Class, typename EnumType, typename Type>
virtual xiiInt64 xiiEnumAccessorProperty< Class, EnumType, Type >::GetValue ( const void * pInstance) const
inlineoverridevirtual

Returns the value of the property. Pass the instance pointer to the surrounding class along.

Implements xiiAbstractEnumerationProperty.

◆ SetValue()

template<typename Class, typename EnumType, typename Type>
virtual void xiiEnumAccessorProperty< Class, EnumType, Type >::SetValue ( void * pInstance,
xiiInt64 value ) const
inlineoverridevirtual

Modifies the value of the property. Pass the instance pointer to the surrounding class along.

Note
Make sure the property is not read-only before calling this, otherwise an assert will fire.

Implements xiiAbstractEnumerationProperty.


The documentation for this class was generated from the following file: