alexpete
116 lines
4.0 KiB
C++
116 lines
4.0 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/AttributeAllocator.h>
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namespace MCore
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{
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/**
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* The string attribute class.
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* This attribute represents one string.
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*/
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class MCORE_API AttributeString
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: public Attribute
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{
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AZ_CLASS_ALLOCATOR(AttributeString, 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 = 0x00000003
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};
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static AttributeString* Create(const AZStd::string& value);
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static AttributeString* Create(const char* value = "");
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MCORE_INLINE uint8* GetRawDataPointer() { return reinterpret_cast<uint8*>(mValue.data()); }
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MCORE_INLINE uint32 GetRawDataSize() const { return static_cast<uint32>(mValue.size()); }
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// adjust values
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MCORE_INLINE const char* AsChar() const { return mValue.c_str(); }
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MCORE_INLINE const AZStd::string& GetValue() const { return mValue; }
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MCORE_INLINE void SetValue(const AZStd::string& value) { mValue = value; }
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// overloaded from the attribute base class
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Attribute* Clone() const override { return AttributeString::Create(mValue); }
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const char* GetTypeString() const override { return "AttributeString"; }
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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 AttributeString*>(other)->GetValue();
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return true;
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}
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bool InitFromString(const AZStd::string& valueString) override { mValue = valueString; return true; }
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bool ConvertToString(AZStd::string& outString) const override { outString = mValue; return true; }
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uint32 GetClassSize() const override { return sizeof(AttributeString); }
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uint32 GetDefaultInterfaceType() const override { return ATTRIBUTE_INTERFACETYPE_STRING; }
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private:
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AZStd::string mValue; /**< The string value. */
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AttributeString()
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: Attribute(TYPE_ID) { }
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AttributeString(const AZStd::string& value)
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: Attribute(TYPE_ID)
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, mValue(value) { }
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AttributeString(const char* value)
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: Attribute(TYPE_ID)
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, mValue(value) { }
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~AttributeString() { mValue.clear(); }
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uint32 GetDataSize() const override
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{
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return sizeof(uint32) + static_cast<uint32>(mValue.size());
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}
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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(version);
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// read the number of characters
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uint32 numCharacters;
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if (stream->Read(&numCharacters, sizeof(uint32)) == 0)
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{
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return false;
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}
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// convert endian
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Endian::ConvertUnsignedInt32(&numCharacters, streamEndianType);
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if (numCharacters == 0)
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{
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mValue.clear();
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return true;
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}
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mValue.resize(numCharacters);
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if (stream->Read(mValue.data(), numCharacters) == 0)
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{
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return false;
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}
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return true;
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}
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};
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} // namespace MCore
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