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//////////////////////////////////////////////////////////////////////////////
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//文件 ActionModifiedItem.cpp
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//主要功能:
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//
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//程序编写: 2006-12-07
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/////////////////////////////////////////////////////////////////////////////
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#include "StdAfx.h"
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#include ".\actionmodifieditem.h"
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#include "SigmaDoc.h"
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#include "SigmaView.h"
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#include "Visitor.h"
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CActionModifiedItem::CActionModifiedItem(CSigmaDoc * ppDoc, UINT actionType)
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: CActionItem(ppDoc, actionType)
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{
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}
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NAction::CActionModifiedItem::CActionModifiedItem()
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:CActionItem(nullptr, 0)
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{
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}
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CActionModifiedItem::CActionModifiedItem(CSigmaDoc * ppDoc, UINT actionType, const CPositionList& list)
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: CActionItem(ppDoc, actionType)
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{
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BackupOldItem(list);
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}
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CActionModifiedItem::~CActionModifiedItem(void)
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{
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}
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int CActionModifiedItem::GetCount()
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{
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return (int)m_entries.size();
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}
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void CActionModifiedItem::Undo()
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{
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CActionItem::Undo();
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PerformOperation(&ModifiedEntry::pOldOne);
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}
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void CActionModifiedItem::Redo()
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{
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CActionItem::Redo();
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PerformOperation(&ModifiedEntry::pNewOne);
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}
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void NAction::CActionModifiedItem::accept(CActionVisitor& visitor)
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{
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visitor.visit(*this);
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}
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void CActionModifiedItem::PerformOperation(std::unique_ptr<COne> ModifiedEntry::* member)
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{
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GetDoc()->ClearSelection();
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for (const ModifiedEntry& entry : m_entries)
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{
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// 拿到 CXy 中的 COne 指针，它就是我们要 undo redo 的目标对象
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COne* pOne = GetDoc()->GetDraw()->GetOneById(entry.id);
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// 这里根据 member 这个类成员指针来决定是取 pOldOne 还是 pNewOne，undo 时就是 pOldOne，redo 时就是 pNewOne
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const std::unique_ptr<COne>& pActionOne = entry.*member;
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if (pOne != nullptr && pActionOne != nullptr)
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{
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// 拷贝备份的内容到目标对象中
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CloneOneAndInvalidate(pOne, pActionOne.get());
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}
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}
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}
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void CActionModifiedItem::AfterRedoUndo(COne* pDestOne)
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{
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}
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void NAction::CActionModifiedItem::BackupOldOne(COne* pOne)
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{
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if (pOne != nullptr)
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{
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ModifiedEntry entry;
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entry.id = pOne->GetId();
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entry.pOldOne = std::make_unique<COne>();
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CloneOne(entry.pOldOne.get(), pOne);
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m_entries.push_back(std::move(entry));
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}
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}
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void NAction::CActionModifiedItem::CloneOneAndInvalidate(COne* pOne, const COne* pActionOne)
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{
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CloneOne(pOne, const_cast<COne*>(pActionOne));
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CRect8 range(1e100, -1e100, -1e100, 1e100);
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pOne->GetRange(range);
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Invalidate(range);
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}
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bool CActionModifiedItem::BackupOldItem(POSITION pos, COne* pOne)
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{
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if (pos == nullptr || pOne == nullptr)
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{
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return false;
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}
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BackupOldOne(pOne);
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return true;
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}
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void CActionModifiedItem::CloneOne(COne* pDestOne, COne* pSourceOne)
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{
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*pDestOne = *pSourceOne;
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}
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void CActionModifiedItem::BackupOldItem(const CPositionList& list)
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{
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for (POSITION pos = list.GetHeadPosition(); pos != nullptr; list.GetNext(pos))
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{
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POSITION pt = list.GetAt(pos);
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COne* pOne = GetDoc()->GetDraw()->GetAt(pt);
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BackupOldOne(pOne);
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}
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}
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void NAction::CActionModifiedItem::BackupNewItem()
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{
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for (ModifiedEntry& entry : m_entries)
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{
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COne* pNewOne = GetDoc()->GetDraw()->GetOneById(entry.id);
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if (pNewOne != nullptr)
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{
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entry.pNewOne = std::make_unique<COne>();
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CloneOne(entry.pNewOne.get(), pNewOne);
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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CActionModifiedMesh::CActionModifiedMesh(CSigmaDoc * ppDoc, UINT actionType)
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: CActionModifiedItem(ppDoc, actionType)
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{
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}
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NAction::CActionModifiedMesh::CActionModifiedMesh()
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{
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}
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CActionModifiedMesh::CActionModifiedMesh(CSigmaDoc * ppDoc, UINT actionType, const CPositionList& list)
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: CActionModifiedItem(ppDoc, actionType, list)
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{
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}
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CActionModifiedMesh::~CActionModifiedMesh(void)
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{
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}
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void NAction::CActionModifiedMesh::accept(CActionVisitor& visitor)
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{
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visitor.visit(*this);
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}
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void CActionModifiedMesh::CloneOne(COne* pDestOne, COne* pSourceOne)
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{
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pDestOne->CloneOtherParameter(*pSourceOne);
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ASSERT(pSourceOne->GetType() == DOUBLEFOX_MESH);
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if(pDestOne->value == NULL)
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pDestOne->value=new CMesh();
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((CMesh*)pDestOne->value)->CloneOtherParamter(*(CMesh*)pSourceOne->value);
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}
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void CActionModifiedMesh::AfterRedoUndo(COne* pDestOne)
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{
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//刷新显示
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((CMesh*)pDestOne->value)->GetBitmap();
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}
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