1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef _XFA_LAYOUT_PAGEMGR_H_ 8 #define _XFA_LAYOUT_PAGEMGR_H_ 9 class CXFA_ContainerRecord { 10 public: 11 CXFA_ContainerRecord(CXFA_ContainerLayoutItem* pPageSet = NULL, 12 CXFA_ContainerLayoutItem* pPageArea = NULL, 13 CXFA_ContainerLayoutItem* pContentArea = NULL) 14 : pCurPageSet(pPageSet), 15 pCurPageArea(pPageArea), 16 pCurContentArea(pContentArea) {} 17 CXFA_ContainerLayoutItem* pCurPageSet; 18 CXFA_ContainerLayoutItem* pCurPageArea; 19 CXFA_ContainerLayoutItem* pCurContentArea; 20 }; 21 class CXFA_LayoutPageMgr { 22 public: 23 CXFA_LayoutPageMgr(CXFA_LayoutProcessor* pLayoutProcessor); 24 ~CXFA_LayoutPageMgr(); 25 FX_BOOL InitLayoutPage(CXFA_Node* pFormNode); 26 FX_BOOL PrepareFirstPage(CXFA_Node* pRootSubform); 27 FX_FLOAT GetAvailHeight(); 28 FX_BOOL GetNextAvailContentHeight(FX_FLOAT fChildHeight); 29 void SubmitContentItem(CXFA_ContentLayoutItem* pContentLayoutItem, 30 XFA_ItemLayoutProcessorResult eStatus); 31 void FinishPaginatedPageSets(); 32 void SyncLayoutData(); 33 int32_t GetPageCount() const; 34 IXFA_LayoutPage* GetPage(int32_t index) const; 35 int32_t GetPageIndex(const IXFA_LayoutPage* pPage) const; 36 inline CXFA_ContainerLayoutItem* GetRootLayoutItem() const { 37 return m_pPageSetLayoutItemRoot; 38 } 39 FX_BOOL ProcessBreakBeforeOrAfter(CXFA_Node* pBreakNode, 40 FX_BOOL bBefore, 41 CXFA_Node*& pBreakLeaderNode, 42 CXFA_Node*& pBreakTrailerNode, 43 FX_BOOL& bCreatePage); 44 FX_BOOL ProcessOverflow(CXFA_Node* pFormNode, 45 CXFA_Node*& pLeaderNode, 46 CXFA_Node*& pTrailerNode, 47 FX_BOOL bDataMerge = FALSE, 48 FX_BOOL bCreatePage = TRUE); 49 CXFA_Node* QueryOverflow(CXFA_Node* pFormNode, 50 CXFA_LayoutContext* pLayoutContext = NULL); 51 FX_BOOL ProcessBookendLeaderOrTrailer(CXFA_Node* pBookendNode, 52 FX_BOOL bLeader, 53 CXFA_Node*& pBookendAppendNode); 54 CXFA_LayoutItem* FindOrCreateLayoutItem(CXFA_Node* pFormNode); 55 56 protected: 57 FX_BOOL AppendNewPage(FX_BOOL bFirstTemPage = FALSE); 58 void ReorderPendingLayoutRecordToTail(CXFA_ContainerRecord* pNewRecord, 59 CXFA_ContainerRecord* pPrevRecord); 60 void RemoveLayoutRecord(CXFA_ContainerRecord* pNewRecord, 61 CXFA_ContainerRecord* pPrevRecord); 62 inline CXFA_ContainerRecord* GetCurrentContainerRecord() { 63 CXFA_ContainerRecord* result = 64 ((CXFA_ContainerRecord*)m_rgProposedContainerRecord.GetAt( 65 m_pCurrentContainerRecord)); 66 ASSERT(result); 67 return result; 68 } 69 CXFA_ContainerRecord* CreateContainerRecord(CXFA_Node* pPageNode = NULL, 70 FX_BOOL bCreateNew = FALSE); 71 void AddPageAreaLayoutItem(CXFA_ContainerRecord* pNewRecord, 72 CXFA_Node* pNewPageArea); 73 void AddContentAreaLayoutItem(CXFA_ContainerRecord* pNewRecord, 74 CXFA_Node* pContentArea); 75 FX_BOOL RunBreak(XFA_ELEMENT eBreakType, 76 XFA_ATTRIBUTEENUM eTargetType, 77 CXFA_Node* pTarget, 78 FX_BOOL bStartNew); 79 CXFA_Node* BreakOverflow(CXFA_Node* pOverflowNode, 80 CXFA_Node*& pLeaderTemplate, 81 CXFA_Node*& pTrailerTemplate, 82 FX_BOOL bCreatePage = TRUE); 83 FX_BOOL ResolveBookendLeaderOrTrailer(CXFA_Node* pBookendNode, 84 FX_BOOL bLeader, 85 CXFA_Node*& pBookendAppendTemplate); 86 FX_BOOL ExecuteBreakBeforeOrAfter(CXFA_Node* pCurNode, 87 FX_BOOL bBefore, 88 CXFA_Node*& pBreakLeaderTemplate, 89 CXFA_Node*& pBreakTrailerTemplate); 90 91 int32_t CreateMinPageRecord(CXFA_Node* pPageArea, 92 FX_BOOL bTargetPageArea, 93 FX_BOOL bCreateLast = FALSE); 94 void CreateMinPageSetRecord(CXFA_Node* pPageSet, FX_BOOL bCreateAll = FALSE); 95 void CreateNextMinRecord(CXFA_Node* pRecordNode); 96 FX_BOOL FindPageAreaFromPageSet(CXFA_Node* pPageSet, 97 CXFA_Node* pStartChild, 98 CXFA_Node* pTargetPageArea = NULL, 99 CXFA_Node* pTargetContentArea = NULL, 100 FX_BOOL bNewPage = FALSE, 101 FX_BOOL bQuery = FALSE); 102 FX_BOOL FindPageAreaFromPageSet_Ordered(CXFA_Node* pPageSet, 103 CXFA_Node* pStartChild, 104 CXFA_Node* pTargetPageArea = NULL, 105 CXFA_Node* pTargetContentArea = NULL, 106 FX_BOOL bNewPage = FALSE, 107 FX_BOOL bQuery = FALSE); 108 FX_BOOL FindPageAreaFromPageSet_SimplexDuplex( 109 CXFA_Node* pPageSet, 110 CXFA_Node* pStartChild, 111 CXFA_Node* pTargetPageArea = NULL, 112 CXFA_Node* pTargetContentArea = NULL, 113 FX_BOOL bNewPage = FALSE, 114 FX_BOOL bQuery = FALSE, 115 XFA_ATTRIBUTEENUM ePreferredPosition = XFA_ATTRIBUTEENUM_First); 116 FX_BOOL MatchPageAreaOddOrEven(CXFA_Node* pPageArea, FX_BOOL bLastMatch); 117 CXFA_Node* GetNextAvailPageArea(CXFA_Node* pTargetPageArea, 118 CXFA_Node* pTargetContentArea = NULL, 119 FX_BOOL bNewPage = FALSE, 120 FX_BOOL bQuery = FALSE); 121 FX_BOOL GetNextContentArea(CXFA_Node* pTargetContentArea); 122 void InitPageSetMap(); 123 void ProcessLastPageSet(); 124 inline FX_BOOL IsPageSetRootOrderedOccurrence() { 125 return m_ePageSetMode == XFA_ATTRIBUTEENUM_OrderedOccurrence; 126 } 127 void ClearData(); 128 void ClearRecordList(); 129 void MergePageSetContents(); 130 void LayoutPageSetContents(); 131 void PrepareLayout(); 132 #if defined(_XFA_LAYOUTITEM_MAPCACHE_) || defined(_XFA_LAYOUTITEM_ProcessCACHE_) 133 void SaveLayoutItem(CXFA_LayoutItem* pParentLayoutItem); 134 #endif 135 CXFA_LayoutProcessor* m_pLayoutProcessor; 136 CXFA_Node* m_pTemplatePageSetRoot; 137 CXFA_ContainerLayoutItem* m_pPageSetLayoutItemRoot; 138 CXFA_ContainerLayoutItem* m_pPageSetCurRoot; 139 FX_POSITION m_pCurrentContainerRecord; 140 CFX_PtrList m_rgProposedContainerRecord; 141 CXFA_Node* m_pCurPageArea; 142 int32_t m_nAvailPages; 143 int32_t m_nCurPageCount; 144 XFA_ATTRIBUTEENUM m_ePageSetMode; 145 FX_BOOL m_bCreateOverFlowPage; 146 CFX_MapPtrTemplate<CXFA_Node*, int32_t> m_pPageSetMap; 147 CFX_ArrayTemplate<CXFA_ContainerLayoutItem*> m_PageArray; 148 #ifdef _XFA_LAYOUTITEM_MAPCACHE_ 149 CFX_MapPtrToPtr m_NodeToContent; 150 #endif 151 }; 152 #endif 153
