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o3de/Gems/Atom/Tools/ShaderManagementConsole/Code/Source/Document/ShaderManagementConsoleDocu...

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/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
#pragma once
#include <AzCore/RTTI/RTTI.h>
#include <AzCore/Asset/AssetCommon.h>
#include <Atom/RPI.Reflect/Shader/ShaderAsset.h>
#include <Atom/RPI.Edit/Shader/ShaderVariantListSourceData.h>
#include <Atom/Document/ShaderManagementConsoleDocumentRequestBus.h>
namespace ShaderManagementConsole
{
/**
* ShaderManagementConsoleDocument provides an API for modifying and saving document properties.
*/
class ShaderManagementConsoleDocument
: public ShaderManagementConsoleDocumentRequestBus::Handler
{
public:
AZ_RTTI(ShaderManagementConsoleDocument, "{DBA269AE-892B-415C-8FA1-166B94B0E045}");
AZ_CLASS_ALLOCATOR(ShaderManagementConsoleDocument, AZ::SystemAllocator, 0);
AZ_DISABLE_COPY(ShaderManagementConsoleDocument);
ShaderManagementConsoleDocument();
virtual ~ShaderManagementConsoleDocument();
const AZ::Uuid& GetId() const;
////////////////////////////////////////////////////////////////////////
// ShaderManagementConsoleDocumentRequestBus::Handler implementation
AZStd::string_view GetAbsolutePath() const override;
AZStd::string_view GetRelativePath() const override;
size_t GetShaderOptionCount() const override;
const AZ::RPI::ShaderOptionDescriptor& GetShaderOptionDescriptor(size_t index) const override;
size_t GetShaderVariantCount() const override;
const AZ::RPI::ShaderVariantListSourceData::VariantInfo& GetShaderVariantInfo(size_t index) const override;
ShaderManagementConsoleDocumentResult Open(AZStd::string_view loadPath) override;
ShaderManagementConsoleDocumentResult Save() override;
ShaderManagementConsoleDocumentResult SaveAsCopy(AZStd::string_view savePath) override;
ShaderManagementConsoleDocumentResult Close() override;
bool IsOpen() const override;
bool IsModified() const override;
bool IsSavable() const override;
bool CanUndo() const override;
bool CanRedo() const override;
bool Undo() override;
bool Redo() override;
bool BeginEdit() override;
bool EndEdit() override;
////////////////////////////////////////////////////////////////////////
private:
// Function to be bound for undo and redo
using UndoRedoFunction = AZStd::function<void()>;
// A pair of functions, where first is the undo operation and second is the redo operation
using UndoRedoFunctionPair = AZStd::pair<UndoRedoFunction, UndoRedoFunction>;
// Container for all of the active undo and redo functions and state
using UndoRedoHistory = AZStd::vector<UndoRedoFunctionPair>;
void Clear();
// Unique id of this document
AZ::Uuid m_id = AZ::Uuid::CreateRandom();
// Relative path to the document
AZStd::string m_relativePath;
// Absolute path to the document
AZStd::string m_absolutePath;
// Source data for shader variant list
AZ::RPI::ShaderVariantListSourceData m_shaderVariantListSourceData;
// Shader asset for the corresponding shader variant list
AZ::Data::Asset<AZ::RPI::ShaderAsset> m_shaderAsset;
// Variables needed for tracking the undo and redo state of this document
// Container of undo commands
UndoRedoHistory m_undoHistory;
// The current position in the undo redo history
int m_undoHistoryIndex = 0;
};
} // namespace ShaderManagementConsole