| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef XFA_FXFA_PARSER_CXFA_LAYOUTPAGEMGR_H_ |
| #define XFA_FXFA_PARSER_CXFA_LAYOUTPAGEMGR_H_ |
| |
| #include <iterator> |
| #include <list> |
| #include <map> |
| #include <vector> |
| |
| #include "xfa/fxfa/parser/xfa_layout_itemlayout.h" |
| |
| class CXFA_ContainerRecord; |
| class CXFA_LayoutItem; |
| |
| class CXFA_LayoutPageMgr { |
| public: |
| explicit CXFA_LayoutPageMgr(CXFA_LayoutProcessor* pLayoutProcessor); |
| ~CXFA_LayoutPageMgr(); |
| |
| bool InitLayoutPage(CXFA_Node* pFormNode); |
| bool PrepareFirstPage(CXFA_Node* pRootSubform); |
| float GetAvailHeight(); |
| bool GetNextAvailContentHeight(float fChildHeight); |
| void SubmitContentItem(CXFA_ContentLayoutItem* pContentLayoutItem, |
| XFA_ItemLayoutProcessorResult eStatus); |
| void FinishPaginatedPageSets(); |
| void SyncLayoutData(); |
| int32_t GetPageCount() const; |
| CXFA_ContainerLayoutItem* GetPage(int32_t index) const; |
| int32_t GetPageIndex(const CXFA_ContainerLayoutItem* pPage) const; |
| inline CXFA_ContainerLayoutItem* GetRootLayoutItem() const { |
| return m_pPageSetLayoutItemRoot; |
| } |
| bool ProcessBreakBeforeOrAfter(CXFA_Node* pBreakNode, |
| bool bBefore, |
| CXFA_Node*& pBreakLeaderNode, |
| CXFA_Node*& pBreakTrailerNode, |
| bool& bCreatePage); |
| bool ProcessOverflow(CXFA_Node* pFormNode, |
| CXFA_Node*& pLeaderNode, |
| CXFA_Node*& pTrailerNode, |
| bool bDataMerge = false, |
| bool bCreatePage = true); |
| CXFA_Node* QueryOverflow(CXFA_Node* pFormNode, |
| CXFA_LayoutContext* pLayoutContext = nullptr); |
| bool ProcessBookendLeaderOrTrailer(CXFA_Node* pBookendNode, |
| bool bLeader, |
| CXFA_Node*& pBookendAppendNode); |
| |
| private: |
| bool AppendNewPage(bool bFirstTemPage = false); |
| void ReorderPendingLayoutRecordToTail(CXFA_ContainerRecord* pNewRecord, |
| CXFA_ContainerRecord* pPrevRecord); |
| void RemoveLayoutRecord(CXFA_ContainerRecord* pNewRecord, |
| CXFA_ContainerRecord* pPrevRecord); |
| CXFA_ContainerRecord* GetCurrentContainerRecord() { |
| return *m_CurrentContainerRecordIter; |
| } |
| std::list<CXFA_ContainerRecord*>::iterator GetTailPosition() { |
| auto iter = m_ProposedContainerRecords.end(); |
| return !m_ProposedContainerRecords.empty() ? std::prev(iter) : iter; |
| } |
| CXFA_ContainerRecord* CreateContainerRecord(CXFA_Node* pPageNode = nullptr, |
| bool bCreateNew = false); |
| void AddPageAreaLayoutItem(CXFA_ContainerRecord* pNewRecord, |
| CXFA_Node* pNewPageArea); |
| void AddContentAreaLayoutItem(CXFA_ContainerRecord* pNewRecord, |
| CXFA_Node* pContentArea); |
| bool RunBreak(XFA_Element eBreakType, |
| XFA_ATTRIBUTEENUM eTargetType, |
| CXFA_Node* pTarget, |
| bool bStartNew); |
| CXFA_Node* BreakOverflow(CXFA_Node* pOverflowNode, |
| CXFA_Node*& pLeaderTemplate, |
| CXFA_Node*& pTrailerTemplate, |
| bool bCreatePage = true); |
| bool ResolveBookendLeaderOrTrailer(CXFA_Node* pBookendNode, |
| bool bLeader, |
| CXFA_Node*& pBookendAppendTemplate); |
| bool ExecuteBreakBeforeOrAfter(CXFA_Node* pCurNode, |
| bool bBefore, |
| CXFA_Node*& pBreakLeaderTemplate, |
| CXFA_Node*& pBreakTrailerTemplate); |
| |
| int32_t CreateMinPageRecord(CXFA_Node* pPageArea, |
| bool bTargetPageArea, |
| bool bCreateLast = false); |
| void CreateMinPageSetRecord(CXFA_Node* pPageSet, bool bCreateAll = false); |
| void CreateNextMinRecord(CXFA_Node* pRecordNode); |
| bool FindPageAreaFromPageSet(CXFA_Node* pPageSet, |
| CXFA_Node* pStartChild, |
| CXFA_Node* pTargetPageArea = nullptr, |
| CXFA_Node* pTargetContentArea = nullptr, |
| bool bNewPage = false, |
| bool bQuery = false); |
| bool FindPageAreaFromPageSet_Ordered(CXFA_Node* pPageSet, |
| CXFA_Node* pStartChild, |
| CXFA_Node* pTargetPageArea = nullptr, |
| CXFA_Node* pTargetContentArea = nullptr, |
| bool bNewPage = false, |
| bool bQuery = false); |
| bool FindPageAreaFromPageSet_SimplexDuplex( |
| CXFA_Node* pPageSet, |
| CXFA_Node* pStartChild, |
| CXFA_Node* pTargetPageArea = nullptr, |
| CXFA_Node* pTargetContentArea = nullptr, |
| bool bNewPage = false, |
| bool bQuery = false, |
| XFA_ATTRIBUTEENUM ePreferredPosition = XFA_ATTRIBUTEENUM_First); |
| bool MatchPageAreaOddOrEven(CXFA_Node* pPageArea, bool bLastMatch); |
| CXFA_Node* GetNextAvailPageArea(CXFA_Node* pTargetPageArea, |
| CXFA_Node* pTargetContentArea = nullptr, |
| bool bNewPage = false, |
| bool bQuery = false); |
| bool GetNextContentArea(CXFA_Node* pTargetContentArea); |
| void InitPageSetMap(); |
| void ProcessLastPageSet(); |
| bool IsPageSetRootOrderedOccurrence() const { |
| return m_ePageSetMode == XFA_ATTRIBUTEENUM_OrderedOccurrence; |
| } |
| void ClearData(); |
| void MergePageSetContents(); |
| void LayoutPageSetContents(); |
| void PrepareLayout(); |
| void SaveLayoutItem(CXFA_LayoutItem* pParentLayoutItem); |
| |
| CXFA_LayoutProcessor* m_pLayoutProcessor; |
| CXFA_Node* m_pTemplatePageSetRoot; |
| CXFA_ContainerLayoutItem* m_pPageSetLayoutItemRoot; |
| CXFA_ContainerLayoutItem* m_pPageSetCurRoot; |
| std::list<CXFA_ContainerRecord*> m_ProposedContainerRecords; |
| std::list<CXFA_ContainerRecord*>::iterator m_CurrentContainerRecordIter; |
| CXFA_Node* m_pCurPageArea; |
| int32_t m_nAvailPages; |
| int32_t m_nCurPageCount; |
| XFA_ATTRIBUTEENUM m_ePageSetMode; |
| bool m_bCreateOverFlowPage; |
| std::map<CXFA_Node*, int32_t> m_pPageSetMap; |
| std::vector<CXFA_ContainerLayoutItem*> m_PageArray; |
| }; |
| |
| #endif // XFA_FXFA_PARSER_CXFA_LAYOUTPAGEMGR_H_ |
