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74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* 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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#ifndef CRYINCLUDE_EDITOR_UTIL_IXMLHISTORYMANAGER_H
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#define CRYINCLUDE_EDITOR_UTIL_IXMLHISTORYMANAGER_H
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#pragma once
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// Helper class to handle Redo/Undo on set of Xml nodes
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struct IXmlUndoEventHandler
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{
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virtual bool SaveToXml(XmlNodeRef& xmlNode) = 0;
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virtual bool LoadFromXml(const XmlNodeRef& xmlNode) = 0;
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virtual bool ReloadFromXml(const XmlNodeRef& xmlNode) = 0;
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};
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struct IXmlHistoryEventListener
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{
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enum EHistoryEventType
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{
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eHET_HistoryDeleted,
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eHET_HistoryCleared,
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eHET_HistorySaved,
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eHET_VersionChanged,
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eHET_VersionAdded,
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eHET_HistoryInvalidate,
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eHET_HistoryGroupChanged,
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eHET_HistoryGroupAdded,
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eHET_HistoryGroupRemoved,
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};
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virtual void OnEvent(EHistoryEventType event, void* pData = nullptr) = 0;
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};
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struct IXmlHistoryView
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{
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virtual bool LoadXml(int typeId, const XmlNodeRef& xmlNode, IXmlUndoEventHandler*& pUndoEventHandler, uint32 userindex) = 0;
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virtual void UnloadXml(int typeId) = 0;
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};
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struct IXmlHistoryManager
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{
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// Undo/Redo
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virtual bool Undo() = 0;
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virtual bool Redo() = 0;
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virtual bool Goto(int historyNum) = 0;
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virtual void RecordUndo(IXmlUndoEventHandler* pEventHandler, const char* desc) = 0;
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virtual void UndoEventHandlerDestroyed(IXmlUndoEventHandler* pEventHandler, uint32 typeId = 0, bool destoryForever = false) = 0;
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virtual void RestoreUndoEventHandler(IXmlUndoEventHandler* pEventHandler, uint32 typeId) = 0;
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virtual void RegisterEventListener(IXmlHistoryEventListener* pEventListener) = 0;
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virtual void UnregisterEventListener(IXmlHistoryEventListener* pEventListener) = 0;
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// History
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virtual void ClearHistory(bool flagAsSaved = false) = 0;
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virtual int GetVersionCount() const = 0;
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virtual const string& GetVersionDesc(int number) const = 0;
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virtual int GetCurrentVersionNumber() const = 0;
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// Views
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virtual void RegisterView(IXmlHistoryView* pView) = 0;
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virtual void UnregisterView(IXmlHistoryView* pView) = 0;
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};
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#endif // CRYINCLUDE_EDITOR_UTIL_IXMLHISTORYMANAGER_H
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