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133 lines
4.9 KiB
C++
133 lines
4.9 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#pragma once
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#include <AzCore/Component/EntityId.h>
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#include <AzCore/Memory/SystemAllocator.h>
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#include <AzToolsFramework/Undo/UndoSystem.h>
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#include <ScriptCanvas/Bus/UndoBus.h>
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#include <ScriptCanvas/Core/Core.h>
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namespace ScriptCanvasEditor
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{
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class GraphItemCommandNotifications
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: public AZ::EBusTraits
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{
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public:
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static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::ById;
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using BusIdType = ScriptCanvas::ScriptCanvasId;
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virtual void PreRestore(const UndoData& /*oldData*/) {};
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virtual void PostRestore(const UndoData& /* restoredData*/) {};
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};
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using GraphItemCommandNotificationBus = AZ::EBus<GraphItemCommandNotifications>;
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class ScriptCanvasMemoryAsset;
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// This command is the base URSequencePoint command from which all Script Canvas undo/redo commands derive
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class GraphItemCommand
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: public AzToolsFramework::UndoSystem::URSequencePoint
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{
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public:
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AZ_RTTI(GraphItemCommand, "{94B50FAC-ACAF-4B9B-BA3C-9F3EE36854BA}", AzToolsFramework::UndoSystem::URSequencePoint);
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AZ_CLASS_ALLOCATOR(GraphItemCommand, AZ::SystemAllocator, 0);
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explicit GraphItemCommand(AZStd::string_view friendlyName);
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~GraphItemCommand() override = default;
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void Undo() override;
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void Redo() override;
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virtual void Capture(ScriptCanvasMemoryAsset& memoryAsset, bool captureUndo);
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bool Changed() const override;
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protected:
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GraphItemCommand(const GraphItemCommand&) = delete;
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const GraphItemCommand& operator=(const GraphItemCommand&) = delete;
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virtual void RestoreItem(const AZStd::vector<AZ::u8>& restoreBuffer);
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AZ::EntityId m_graphCanvasGraphId;
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AZ::EntityId m_scriptCanvasEntityId; ///< The id of the ScriptCanvas Entity with the Script Canvas Graph and Graph Canvas Scene
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ScriptCanvas::ScriptCanvasId m_scriptCanvasId;
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AZStd::vector<AZ::u8> m_undoState;
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AZStd::vector<AZ::u8> m_redoState;
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};
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// This commands captures a modification to a Script Canvas graph involving either a ScriptCanvas Node/Connection or a GraphCanvas Node/Connection
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class GraphItemChangeCommand
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: public GraphItemCommand
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{
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public:
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AZ_RTTI(GraphItemChangeCommand, "{9F8805F7-61CD-40FC-B426-020925F4E3DB}", GraphItemCommand);
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AZ_CLASS_ALLOCATOR(GraphItemChangeCommand, AZ::SystemAllocator, 0);
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GraphItemChangeCommand(AZStd::string_view friendlyName);
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~GraphItemChangeCommand() = default;
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void Undo() override;
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void Redo() override;
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void Capture(ScriptCanvasMemoryAsset& memoryAsset, bool captureUndo) override;
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void RestoreItem(const AZStd::vector<AZ::u8>& restoreBuffer) override;
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protected:
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GraphItemChangeCommand(const GraphItemChangeCommand&) = delete;
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const GraphItemChangeCommand& operator=(const GraphItemChangeCommand&) = delete;
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void DeleteOldGraphData(const UndoData& oldData);
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void ActivateRestoredGraphData(const UndoData& restoredData);
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};
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// This command captures when a node or connection is added to the Script Canvas graph.
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class GraphItemAddCommand
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: public GraphItemChangeCommand
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{
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public:
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AZ_RTTI(GraphItemAddCommand, "{01E6BC39-0A2C-4C05-9384-804A63321D62}", GraphItemChangeCommand);
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AZ_CLASS_ALLOCATOR(GraphItemAddCommand, AZ::SystemAllocator, 0);
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explicit GraphItemAddCommand(AZStd::string_view friendlyName);
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~GraphItemAddCommand() override = default;
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void Undo() override;
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void Redo() override;
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void Capture(ScriptCanvasMemoryAsset& memoryAsset, bool captureUndo) override;
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protected:
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GraphItemAddCommand(const GraphItemAddCommand&) = delete;
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const GraphItemAddCommand& operator=(const GraphItemAddCommand&) = delete;
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};
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// This command captures when a node or connection is removed from the Script Canvas graph
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class GraphItemRemovalCommand
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: public GraphItemChangeCommand
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{
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public:
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AZ_RTTI(GraphItemRemovalCommand, "{6257B3EC-E9E8-4419-AA25-2A768C21B635}", GraphItemChangeCommand);
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AZ_CLASS_ALLOCATOR(GraphItemRemovalCommand, AZ::SystemAllocator, 0);
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explicit GraphItemRemovalCommand(AZStd::string_view friendlyName);
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~GraphItemRemovalCommand() override = default;
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void Undo() override;
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void Redo() override;
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void Capture(ScriptCanvasMemoryAsset& memoryAsset, bool captureUndo) override;
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protected:
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GraphItemRemovalCommand(const GraphItemRemovalCommand&) = delete;
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const GraphItemRemovalCommand& operator=(const GraphItemRemovalCommand&) = delete;
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};
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}
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