alexpete
88 lines
3.3 KiB
C++
88 lines
3.3 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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// include the required headers
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#include "StandardHeaders.h"
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#include "Attribute.h"
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#include <MCore/Source/LogManager.h>
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namespace MCore
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{
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/**
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* The pointer attribute class.
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* This attribute represents a pointer to an object. It cannot be loaded or saved to streams/files.
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* It is mainly used to temporarily store pointers to objects.
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*/
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class MCORE_API AttributePointer
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: public Attribute
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{
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AZ_CLASS_ALLOCATOR(AttributePointer, AttributeAllocator, 0)
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friend class AttributeFactory;
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public:
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enum
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{
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TYPE_ID = 0x0000000c
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};
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static AttributePointer* Create(void* value = nullptr);
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// adjust values
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MCORE_INLINE void* GetValue() const { return mValue; }
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MCORE_INLINE void SetValue(void* value) { mValue = value; }
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// overloaded from the attribute base class
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Attribute* Clone() const override { return AttributePointer::Create(mValue); }
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const char* GetTypeString() const override { return "AttributePointer"; }
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bool InitFrom(const Attribute* other) override
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{
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if (other->GetType() != TYPE_ID)
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{
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return false;
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}
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mValue = static_cast<const AttributePointer*>(other)->GetValue();
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return true;
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}
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bool InitFromString(const AZStd::string& valueString) override { MCORE_UNUSED(valueString); MCORE_ASSERT(false); return false; } // currently unsupported
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bool ConvertToString(AZStd::string& outString) const override { MCORE_UNUSED(outString); MCORE_ASSERT(false); return false; } // currently unsupported
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uint32 GetClassSize() const override { return sizeof(AttributePointer); }
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uint32 GetDefaultInterfaceType() const override { return ATTRIBUTE_INTERFACETYPE_DEFAULT; }
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private:
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void* mValue; /**< The pointer value. */
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AttributePointer()
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: Attribute(TYPE_ID)
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, mValue(nullptr) { }
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AttributePointer(void* pointer)
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: Attribute(TYPE_ID)
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, mValue(pointer) { }
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~AttributePointer() {}
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uint32 GetDataSize() const override { return sizeof(void*); }
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// read from a stream
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bool ReadData(MCore::Stream* stream, MCore::Endian::EEndianType streamEndianType, uint8 version) override
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{
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MCORE_UNUSED(stream);
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MCORE_UNUSED(streamEndianType);
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MCORE_UNUSED(version);
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MCore::LogWarning("MCore::AttributePointer::ReadData() - Pointer attributes cannot be read from disk.");
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return false;
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}
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};
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} // namespace MCore
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