You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
o3de/Code/Editor/Util/XmlHistoryManager.cpp

876 lines
29 KiB
C++

/*
* 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.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include "EditorDefs.h"
#include "XmlHistoryManager.h"
////////////////////////////////////////////////////////////////////////////
SXmlHistory::SXmlHistory(CXmlHistoryManager* pManager, const XmlNodeRef& xmlBaseVersion, uint32 typeId)
: m_pManager(pManager)
, m_typeId(typeId)
, m_DeletedVersion(-1)
, m_SavedVersion(-1)
{
int newVersionNumber = m_pManager->GetCurrentVersionNumber() + (m_pManager->IsPreparedForNextVersion() ? 1 : 0);
m_xmlVersionList[ newVersionNumber ] = xmlBaseVersion;
}
////////////////////////////////////////////////////////////////////////////
void SXmlHistory::AddToHistory(const XmlNodeRef& newXmlVersion)
{
int newVersionNumber = m_pManager->IncrementVersion(this);
m_xmlVersionList[ newVersionNumber ] = newXmlVersion;
}
////////////////////////////////////////////////////////////////////////////
const XmlNodeRef& SXmlHistory::Undo(bool* bVersionExist)
{
m_pManager->Undo();
return GetCurrentVersion(bVersionExist);
}
////////////////////////////////////////////////////////////////////////////
const XmlNodeRef& SXmlHistory::Redo()
{
m_pManager->Redo();
return GetCurrentVersion();
}
////////////////////////////////////////////////////////////////////////////
const XmlNodeRef& SXmlHistory::GetCurrentVersion(bool* bVersionExist, int* iVersionNumber) const
{
int currentVersion = m_pManager->GetCurrentVersionNumber();
TXmlVersionMap::const_iterator it = m_xmlVersionList.begin();
TXmlVersionMap::const_iterator previt = m_xmlVersionList.begin();
while (it != m_xmlVersionList.end())
{
if (it->first > currentVersion)
{
break;
}
previt = it;
++it;
}
if (bVersionExist)
{
*bVersionExist = currentVersion >= m_xmlVersionList.begin()->first;
}
if (iVersionNumber)
{
*iVersionNumber = previt->first;
}
return previt->second;
}
////////////////////////////////////////////////////////////////////////////
bool SXmlHistory::IsModified() const
{
int currVersion;
GetCurrentVersion(NULL, &currVersion);
return m_SavedVersion != currVersion;
}
////////////////////////////////////////////////////////////////////////////
void SXmlHistory::FlagAsDeleted()
{
assert(m_pManager->IsPreparedForNextVersion());
m_DeletedVersion = m_pManager->GetCurrentVersionNumber() + 1;
m_SavedVersion = -1;
}
////////////////////////////////////////////////////////////////////////////
void SXmlHistory::FlagAsSaved()
{
if (Exist())
{
int currVersion;
GetCurrentVersion(NULL, &currVersion);
m_SavedVersion = currVersion;
}
}
////////////////////////////////////////////////////////////////////////////
bool SXmlHistory::Exist() const
{
// int currentVersion = m_pManager->GetCurrentVersionNumber();
// bool deleted = m_DeletedVersion != -1 && currentVersion >= m_DeletedVersion;
// bool exist = currentVersion >= m_xmlVersionList.begin()->first;
// return !deleted && exist;
int currentVersion = m_pManager->GetCurrentVersionNumber();
return currentVersion >= m_xmlVersionList.begin()->first && (m_DeletedVersion == -1 || currentVersion < m_DeletedVersion);
}
////////////////////////////////////////////////////////////////////////////
void SXmlHistory::ClearRedo()
{
int currentVersion = m_pManager->GetCurrentVersionNumber();
if (m_DeletedVersion > currentVersion + (m_pManager->IsPreparedForNextVersion() ? 1 : 0))
{
m_DeletedVersion = -1;
}
TXmlVersionMap::iterator it = m_xmlVersionList.begin();
for (; it != m_xmlVersionList.end(); ++it)
{
if (it->first > currentVersion)
{
break;
}
}
if (it != m_xmlVersionList.end())
{
++it;
while (it != m_xmlVersionList.end())
{
m_xmlVersionList.erase(it++);
}
}
}
////////////////////////////////////////////////////////////////////////////
void SXmlHistory::ClearHistory(bool flagAsSaved)
{
bool wasModified = !flagAsSaved && IsModified();
m_DeletedVersion = Exist() ? -1 : 0;
ClearRedo();
XmlNodeRef latest = m_xmlVersionList.rbegin()->second;
m_xmlVersionList.clear();
m_xmlVersionList[ 0 ] = latest;
m_SavedVersion = wasModified ? -1 : 0;
}
////////////////////////////////////////////////////////////////////////////
SXmlHistoryGroup::SXmlHistoryGroup(CXmlHistoryManager* pManager, uint32 typeId)
: m_pManager(pManager)
, m_typeId(typeId)
{
}
////////////////////////////////////////////////////////////////////////////
SXmlHistory* SXmlHistoryGroup::GetHistory(int index) const
{
THistoryList::const_iterator it = m_List.begin();
while (index > 0 && it != m_List.end())
{
++it;
if ((*it)->Exist())
{
--index;
}
}
return it != m_List.end() ? *it : NULL;
}
////////////////////////////////////////////////////////////////////////////
int SXmlHistoryGroup::GetHistoryCount() const
{
int count = 0;
for (THistoryList::const_iterator it = m_List.begin(); it != m_List.end(); ++it)
{
if ((*it)->Exist())
{
count++;
}
}
return count;
}
////////////////////////////////////////////////////////////////////////////
SXmlHistory* SXmlHistoryGroup::GetHistoryByTypeId(uint32 typeId, int index /*= 0*/) const
{
for (int i = 0; i < GetHistoryCount(); ++i)
{
SXmlHistory* pHistory = GetHistory(i);
if (pHistory->GetTypeId() == typeId)
{
index--;
}
if (index == -1)
{
return pHistory;
}
}
return NULL;
}
////////////////////////////////////////////////////////////////////////////
int SXmlHistoryGroup::GetHistoryCountByTypeId(uint32 typeId) const
{
int res = 0;
for (int i = 0; i < GetHistoryCount(); ++i)
{
if (GetHistory(i)->GetTypeId() == typeId)
{
res++;
}
}
return res;
}
////////////////////////////////////////////////////////////////////////////
int SXmlHistoryGroup::CreateXmlHistory(uint32 typeId, const XmlNodeRef& xmlBaseVersion)
{
if (m_pManager)
{
m_List.push_back(m_pManager->CreateXmlHistory(typeId, xmlBaseVersion));
return m_List.size() - 1;
}
return -1;
}
////////////////////////////////////////////////////////////////////////////
int SXmlHistoryGroup::GetHistoryIndex(const SXmlHistory* pHistory) const
{
int index = 0;
for (THistoryList::const_iterator it = m_List.begin(); it != m_List.end(); ++it)
{
if (*it == pHistory)
{
return index;
}
index++;
}
return -1;
}
////////////////////////////////////////////////////////////////////////////
CXmlHistoryManager::CXmlHistoryManager()
: m_CurrentVersion(0)
, m_LatestVersion(0)
, m_pExclusiveListener(NULL)
, m_RecordNextVersion(false)
, m_pExActiveGroup(NULL)
, m_bIsActiveGroupEx(false)
{
m_pNullGroup = new SXmlHistoryGroup(this, (uint32) - 1);
}
CXmlHistoryManager::~CXmlHistoryManager()
{
delete m_pNullGroup;
}
/////////////////////////////////////////////////////////////////////////////
bool CXmlHistoryManager::Undo()
{
if (m_CurrentVersion > 0)
{
int prevVersion = m_CurrentVersion;
const SXmlHistoryGroup* pPrevCurrGroup = GetActiveGroup();
m_CurrentVersion--;
ReloadCurrentVersion(pPrevCurrGroup, prevVersion);
return true;
}
return false;
}
/////////////////////////////////////////////////////////////////////////////
bool CXmlHistoryManager::Redo()
{
if (m_CurrentVersion < m_LatestVersion)
{
int prevVersion = m_CurrentVersion;
const SXmlHistoryGroup* pPrevCurrGroup = GetActiveGroup();
m_CurrentVersion++;
ReloadCurrentVersion(pPrevCurrGroup, prevVersion);
return true;
}
return false;
}
/////////////////////////////////////////////////////////////////////////////
bool CXmlHistoryManager::Goto(int historyNum)
{
if (historyNum >= 0 && historyNum <= m_LatestVersion)
{
int prevVersion = m_CurrentVersion;
const SXmlHistoryGroup* pPrevCurrGroup = GetActiveGroup();
m_CurrentVersion = historyNum;
ReloadCurrentVersion(pPrevCurrGroup, prevVersion);
return true;
}
return false;
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RecordUndo(IXmlUndoEventHandler* pEventHandler, const char* desc)
{
ClearRedo();
SXmlHistory* pChangedXml = m_UndoEventHandlerMap[ pEventHandler ].CurrentData;
assert(pChangedXml);
XmlNodeRef newData = gEnv->pSystem->CreateXmlNode();
#if !defined(NDEBUG)
bool bRes =
#endif
pEventHandler->SaveToXml(newData);
assert(bRes);
TXmlHistotyGroupPtrList activeGroups = m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups;
pChangedXml->AddToHistory(newData);
m_UndoEventHandlerMap[ pEventHandler ].HistoryData[ m_CurrentVersion ] = pChangedXml;
m_HistoryInfoMap[ m_CurrentVersion ].HistoryDescription = desc;
m_HistoryInfoMap[ m_CurrentVersion ].IsNullUndo = false;
m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups = activeGroups;
m_HistoryInfoMap[ m_CurrentVersion ].HistoryInvalidated = false;
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_VersionAdded);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::UndoEventHandlerDestroyed(IXmlUndoEventHandler* pEventHandler, uint32 typeId /*= 0*/, bool destoryForever /*= false*/)
{
if (destoryForever)
{
UnregisterUndoEventHandler(pEventHandler);
}
else
{
m_InvalidHandlerMap[typeId] = pEventHandler;
}
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RestoreUndoEventHandler(IXmlUndoEventHandler* pEventHandler, uint32 typeId)
{
TInvalidUndoEventListener::iterator it = m_InvalidHandlerMap.find(typeId);
if (it != m_InvalidHandlerMap.end())
{
IXmlUndoEventHandler* pLastHandler = it->second;
TUndoEventHandlerMap::iterator lastit = m_UndoEventHandlerMap.find(pLastHandler);
if (lastit != m_UndoEventHandlerMap.end())
{
m_UndoEventHandlerMap[pEventHandler] = lastit->second;
m_UndoEventHandlerMap.erase(lastit);
}
m_InvalidHandlerMap.erase(it);
}
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RegisterEventListener(IXmlHistoryEventListener* pEventListener)
{
stl::push_back_unique(m_EventListener, pEventListener);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::UnregisterEventListener(IXmlHistoryEventListener* pEventListener)
{
m_EventListener.remove(pEventListener);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::PrepareForNextVersion()
{
assert(!m_RecordNextVersion);
m_RecordNextVersion = true;
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RecordNextVersion(SXmlHistory* pHistory, XmlNodeRef newData, const char* undoDesc /*= NULL*/)
{
assert(m_RecordNextVersion);
RegisterUndoEventHandler(this, pHistory);
m_newHistoryData = newData;
RecordUndo(this, undoDesc ? undoDesc : "<UNDEFINED>");
m_RecordNextVersion = false;
m_HistoryInfoMap[ m_CurrentVersion ].HistoryInvalidated = true;
UnregisterUndoEventHandler(this);
SetActiveGroupInt(GetActiveGroup());
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryInvalidate);
}
/////////////////////////////////////////////////////////////////////////////
bool CXmlHistoryManager::SaveToXml(XmlNodeRef& xmlNode)
{
assert(m_newHistoryData);
xmlNode = m_newHistoryData;
return true;
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::ClearHistory(bool flagAsSaved)
{
TXmlHistotyGroupPtrList activeGropus = m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups;
for (TXmlHistoryList::iterator it = m_XmlHistoryList.begin(); it != m_XmlHistoryList.end(); ++it)
{
it->ClearHistory(flagAsSaved);
}
SetActiveGroup(NULL);
m_CurrentVersion = 0;
m_LatestVersion = 0;
m_UndoEventHandlerMap.clear();
m_HistoryInfoMap.clear();
m_HistoryInfoMap[ 0 ].HistoryDescription = "New History";
m_HistoryInfoMap[ 0 ].ActiveGroups = activeGropus;
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryCleared);
}
/////////////////////////////////////////////////////////////////////////////
const AZStd::string& CXmlHistoryManager::GetVersionDesc(int number) const
{
THistoryInfoMap::const_iterator it = m_HistoryInfoMap.find(number);
if (it != m_HistoryInfoMap.end())
{
return it->second.HistoryDescription;
}
static AZStd::string undef("UNDEFINED");
return undef;
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RegisterView(IXmlHistoryView* pView)
{
stl::push_back_unique(m_Views, pView);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::UnregisterView(IXmlHistoryView* pView)
{
m_Views.remove(pView);
}
/////////////////////////////////////////////////////////////////////////////
SXmlHistoryGroup* CXmlHistoryManager::CreateXmlGroup(uint32 typeId)
{
m_Groups.push_back(SXmlHistoryGroup(this, typeId));
return &(*m_Groups.rbegin());
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::AddXmlGroup(const SXmlHistoryGroup* pGroup, const char* undoDesc /*= NULL*/)
{
RecordUndoInternal(undoDesc ? undoDesc : "New XML Group added");
m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups.push_back(pGroup);
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryGroupAdded, (void*)pGroup);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RemoveXmlGroup(const SXmlHistoryGroup* pGroup, const char* undoDesc /*= NULL*/)
{
bool unload = m_HistoryInfoMap[ m_CurrentVersion ].CurrGroup == pGroup;
RecordUndoInternal(undoDesc ? undoDesc : "XML Group deleted");
TXmlHistotyGroupPtrList& list = m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups;
stl::find_and_erase(list, pGroup);
if (unload)
{
SetActiveGroupInt(NULL);
}
m_HistoryInfoMap[ m_CurrentVersion ].CurrGroup = m_pNullGroup;
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryGroupRemoved, (void*)pGroup);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::SetActiveGroup(const SXmlHistoryGroup* pGroup, const char* displayName /*= NULL*/, const TGroupIndexMap& groupIndex /*= TGroupIndexMap()*/, bool setExternal /*= false*/)
{
TGroupIndexMap userIndex;
const SXmlHistoryGroup* pActiveGroup = GetActiveGroup(userIndex);
if (pGroup != pActiveGroup || userIndex != groupIndex || setExternal)
{
const bool isEx = m_CurrentVersion != m_LatestVersion || setExternal;
m_pExActiveGroup = const_cast<SXmlHistoryGroup*>(pGroup);
m_ExCurrentIndex = groupIndex;
m_bIsActiveGroupEx = true;
SetActiveGroupInt(pGroup, displayName, !isEx, groupIndex);
m_bIsActiveGroupEx = isEx;
}
}
void CXmlHistoryManager::SetActiveGroupInt(const SXmlHistoryGroup* pGroup, const char* displayName /*= NULL*/, bool bRecordNullUndo /*= false*/, const TGroupIndexMap& groupIndex /*= TGroupIndexMap()*/)
{
UnloadInt();
TEventHandlerList eventHandler;
AZStd::string undoDesc;
if (pGroup)
{
for (TViews::iterator it = m_Views.begin(); it != m_Views.end(); ++it)
{
IXmlHistoryView* pView = *it;
std::map<uint32, int> userIndexCount;
for (SXmlHistoryGroup::THistoryList::const_iterator history = pGroup->m_List.begin(); history != pGroup->m_List.end(); ++history)
{
std::map<uint32, int>::iterator it2 = userIndexCount.find((*history)->GetTypeId());
if (it2 == userIndexCount.end())
{
userIndexCount[ (*history)->GetTypeId() ] = 0;
}
uint32 userindex = userIndexCount[ (*history)->GetTypeId() ];
IXmlUndoEventHandler* pEventHandler = NULL;
TGroupIndexMap::const_iterator indexIter = groupIndex.find((*history)->GetTypeId());
if (indexIter == groupIndex.end() || indexIter->second == userindex)
{
if ((*history)->Exist())
{
if (pView->LoadXml((*history)->GetTypeId(), (*history)->GetCurrentVersion(), pEventHandler, userindex))
{
if (pEventHandler)
{
m_UndoHandlerViewMap[ pEventHandler ] = pView;
RegisterUndoEventHandler(pEventHandler, *history);
eventHandler.push_back(pEventHandler);
}
}
}
}
if ((*history)->Exist())
{
userIndexCount[ (*history)->GetTypeId() ]++;
}
}
}
undoDesc = AZStd::string::format("Changed View to \"%s\"", displayName ? displayName : "UNDEFINED");
}
else
{
undoDesc = "Unloaded Views";
for (TUndoEventHandlerMap::iterator it = m_UndoEventHandlerMap.begin(); it != m_UndoEventHandlerMap.end(); ++it)
{
eventHandler.push_back(it->first);
}
pGroup = m_pNullGroup;
}
if (bRecordNullUndo)
{
RecordNullUndo(eventHandler, undoDesc.c_str());
m_HistoryInfoMap[ m_CurrentVersion ].CurrGroup = pGroup;
m_HistoryInfoMap[ m_CurrentVersion ].CurrUserIndex = groupIndex;
}
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryGroupChanged);
}
/////////////////////////////////////////////////////////////////////////////
const SXmlHistoryGroup* CXmlHistoryManager::GetActiveGroup() const
{
TGroupIndexMap userIndex;
return GetActiveGroup(userIndex);
}
/////////////////////////////////////////////////////////////////////////////
const SXmlHistoryGroup* CXmlHistoryManager::GetActiveGroup(TGroupIndexMap& currUserIndex /*out*/) const
{
if (m_bIsActiveGroupEx)
{
currUserIndex = m_ExCurrentIndex;
return m_pExActiveGroup;
}
int currVersion = m_CurrentVersion;
do
{
THistoryInfoMap::const_iterator it = m_HistoryInfoMap.find(currVersion);
if (it != m_HistoryInfoMap.end())
{
const SXmlHistoryGroup* pGroup = it->second.CurrGroup;
if (it != m_HistoryInfoMap.end() && pGroup)
{
currUserIndex = it->second.CurrUserIndex;
return pGroup == m_pNullGroup ? NULL : pGroup;
}
}
currVersion--;
} while (currVersion >= 0);
return NULL;
}
/////////////////////////////////////////////////////////////////////////////
SXmlHistory* CXmlHistoryManager::CreateXmlHistory(uint32 typeId, const XmlNodeRef& xmlBaseVersion)
{
m_XmlHistoryList.push_back(SXmlHistory(this, xmlBaseVersion, typeId));
return &(*m_XmlHistoryList.rbegin());
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::DeleteXmlHistory(const SXmlHistory* pXmlHistry)
{
for (TXmlHistoryList::iterator it = m_XmlHistoryList.begin(); it != m_XmlHistoryList.end(); ++it)
{
if (&(*it) == pXmlHistry)
{
m_XmlHistoryList.erase(it);
return;
}
}
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::UnloadInt()
{
for (TViews::iterator it = m_Views.begin(); it != m_Views.end(); ++it)
{
IXmlHistoryView* pView = *it;
pView->UnloadXml(-1);
}
}
/////////////////////////////////////////////////////////////////////////////
namespace
{
template< class T >
void ClearAfterVersion(T& container, int version)
{
auto foundit = container.end();
do
{
auto it = container.find(version);
if (it != container.end())
{
foundit = it;
break;
}
version--;
} while (version >= 0);
if (foundit != container.end())
{
for (auto it = ++foundit; it != container.end(); )
{
container.erase(it++);
}
}
}
}
void CXmlHistoryManager::ClearRedo()
{
ClearAfterVersion(m_HistoryInfoMap, m_CurrentVersion);
for (TUndoEventHandlerMap::iterator it = m_UndoEventHandlerMap.begin(); it != m_UndoEventHandlerMap.end(); ++it)
{
ClearAfterVersion(it->second.HistoryData, m_CurrentVersion);
}
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::DeleteAll()
{
ClearHistory();
m_Groups.clear();
m_UndoEventHandlerMap.clear();
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryDeleted);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::FlagHistoryAsSaved()
{
for (TXmlHistoryList::iterator it = m_XmlHistoryList.begin(); it != m_XmlHistoryList.end(); ++it)
{
it->FlagAsSaved();
}
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistorySaved);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RecordNullUndo(const TEventHandlerList& eventHandler, const char* desc, bool isNull /*= true*/)
{
TXmlHistotyGroupPtrList activeGroups = m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups;
// if current version is already null undo, overwrite it instead of create a new version
if (m_HistoryInfoMap[ m_CurrentVersion ].IsNullUndo && isNull)
{
assert(m_CurrentVersion);
m_CurrentVersion--;
}
ClearRedo();
IncrementVersion();
for (TEventHandlerList::const_iterator it = eventHandler.begin(); it != eventHandler.end(); ++it)
{
SXmlHistory* pChangedXml = m_UndoEventHandlerMap[ *it ].CurrentData;
m_UndoEventHandlerMap[ *it ].HistoryData[ m_CurrentVersion ] = pChangedXml;
}
m_HistoryInfoMap[ m_CurrentVersion ].HistoryDescription = desc;
m_HistoryInfoMap[ m_CurrentVersion ].IsNullUndo = isNull;
m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups = activeGroups;
m_HistoryInfoMap[ m_CurrentVersion ].HistoryInvalidated = false;
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_VersionAdded);
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::ReloadCurrentVersion(const SXmlHistoryGroup* pPrevGroup, int prevVersion)
{
m_bIsActiveGroupEx = false;
const SXmlHistoryGroup* pActiveGroup = GetActiveGroup();
bool bInvalidated = false;
int start = min(prevVersion, m_CurrentVersion);
int end = max(prevVersion, m_CurrentVersion);
for (int i = start; i <= end; ++i)
{
if (m_HistoryInfoMap[i].HistoryInvalidated)
{
bInvalidated = true;
break;
}
}
if (!bInvalidated && pPrevGroup == pActiveGroup)
{
for (TUndoEventHandlerMap::iterator it = m_UndoEventHandlerMap.begin(); it != m_UndoEventHandlerMap.end(); ++it)
{
IXmlUndoEventHandler* pEventHandler = it->first;
if (!IsEventHandlerValid(pEventHandler))
{
assert(false);
continue;
}
SXmlHistory* pXmlHistory = GetLatestHistory(m_UndoEventHandlerMap[ pEventHandler ]); /*m_UndoEventHandlerMap[ pEventHandler ].HistoryData[ m_CurrentVersion ];*/
if (pXmlHistory)
{
if (pXmlHistory->Exist())
{
pEventHandler->ReloadFromXml(pXmlHistory->GetCurrentVersion());
}
}
}
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_VersionChanged);
}
else
{
SetActiveGroupInt(pActiveGroup);
}
if (bInvalidated)
{
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryInvalidate);
}
TXmlHistotyGroupPtrList oldActiveGroups = m_HistoryInfoMap[ prevVersion ].ActiveGroups;
TXmlHistotyGroupPtrList newActiveGroups = m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups;
RemoveListFromList(newActiveGroups, oldActiveGroups);
RemoveListFromList(oldActiveGroups, m_HistoryInfoMap[ m_CurrentVersion ].ActiveGroups);
for (TXmlHistotyGroupPtrList::iterator it = newActiveGroups.begin(); it != newActiveGroups.end(); ++it)
{
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryGroupAdded, (void*) *it);
}
for (TXmlHistotyGroupPtrList::iterator it = oldActiveGroups.begin(); it != oldActiveGroups.end(); ++it)
{
NotifyUndoEventListener(IXmlHistoryEventListener::eHET_HistoryGroupRemoved, (void*) *it);
}
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RemoveListFromList(TXmlHistotyGroupPtrList& list, const TXmlHistotyGroupPtrList& removeList)
{
for (TXmlHistotyGroupPtrList::const_iterator rit = removeList.begin(); rit != removeList.end(); ++rit)
{
for (TXmlHistotyGroupPtrList::iterator it = list.begin(); it != list.end(); ++it)
{
if (*it == *rit)
{
list.erase(it);
break;
}
}
}
}
/////////////////////////////////////////////////////////////////////////////
SXmlHistory* CXmlHistoryManager::GetLatestHistory(SUndoEventHandlerData& eventHandlerData)
{
int currVersion = m_CurrentVersion;
do
{
THistoryVersionMap::iterator it = eventHandlerData.HistoryData.find(currVersion);
if (it != eventHandlerData.HistoryData.end())
{
return it->second;
}
currVersion--;
} while (currVersion >= 0);
return NULL;
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::NotifyUndoEventListener(IXmlHistoryEventListener::EHistoryEventType event, void* pData)
{
if (m_pExclusiveListener)
{
m_pExclusiveListener->OnEvent(event, pData);
}
else
{
for (TEventListener::iterator it = m_EventListener.begin(); it != m_EventListener.end(); ++it)
{
(*it)->OnEvent(event, pData);
}
}
}
/////////////////////////////////////////////////////////////////////////////
int CXmlHistoryManager::IncrementVersion([[maybe_unused]] SXmlHistory* pXmlHistry)
{
for (TXmlHistoryList::iterator it = m_XmlHistoryList.begin(); it != m_XmlHistoryList.end(); ++it)
{
it->ClearRedo();
}
return IncrementVersion();
}
/////////////////////////////////////////////////////////////////////////////
int CXmlHistoryManager::IncrementVersion()
{
m_CurrentVersion++;
m_LatestVersion = m_CurrentVersion;
return m_CurrentVersion;
}
////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RegisterUndoEventHandler(IXmlUndoEventHandler* pEventHandler, SXmlHistory* pXmlData)
{
m_UndoEventHandlerMap[ pEventHandler ].CurrentData = pXmlData;
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::UnregisterUndoEventHandler(IXmlUndoEventHandler* pEventHandler)
{
TUndoEventHandlerMap::iterator it = m_UndoEventHandlerMap.find(pEventHandler);
if (it != m_UndoEventHandlerMap.end())
{
m_UndoEventHandlerMap.erase(it);
}
}
/////////////////////////////////////////////////////////////////////////////
void CXmlHistoryManager::RecordUndoInternal(const char* desc)
{
TEventHandlerList eventHandler;
for (TUndoEventHandlerMap::iterator it = m_UndoEventHandlerMap.begin(); it != m_UndoEventHandlerMap.end(); ++it)
{
eventHandler.push_back(it->first);
}
RecordNullUndo(eventHandler, desc, false);
}
/////////////////////////////////////////////////////////////////////////////
bool CXmlHistoryManager::IsEventHandlerValid(IXmlUndoEventHandler* pEventHandler)
{
for (TInvalidUndoEventListener::iterator it = m_InvalidHandlerMap.begin(); it != m_InvalidHandlerMap.end(); ++it)
{
if (it->second == pEventHandler)
{
return false;
}
}
return true;
}