| // 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_XFA_LAYOUT_ITEMLAYOUT_H_ |
| #define XFA_FXFA_PARSER_XFA_LAYOUT_ITEMLAYOUT_H_ |
| |
| #include <float.h> |
| |
| #include <list> |
| #include <map> |
| |
| #include "core/fxcrt/include/fx_basic.h" |
| #include "xfa/fxfa/parser/xfa_doclayout.h" |
| #include "xfa/fxfa/parser/xfa_document_layout_imp.h" |
| |
| #define XFA_LAYOUT_INVALIDNODE ((CXFA_Node*)(intptr_t)-1) |
| #define XFA_LAYOUT_FLOAT_PERCISION (0.0005f) |
| #define XFA_LAYOUT_FLOAT_MAX FLT_MAX |
| |
| class CXFA_ContainerLayoutItem; |
| class CXFA_ContentLayoutItem; |
| class CXFA_ItemLayoutProcessor; |
| class CXFA_LayoutPageMgr; |
| class CXFA_Node; |
| |
| enum XFA_ItemLayoutProcessorResult { |
| XFA_ItemLayoutProcessorResult_Done, |
| XFA_ItemLayoutProcessorResult_PageFullBreak, |
| XFA_ItemLayoutProcessorResult_RowFullBreak, |
| XFA_ItemLayoutProcessorResult_ManualBreak, |
| }; |
| |
| enum XFA_ItemLayoutProcessorStages { |
| XFA_ItemLayoutProcessorStages_None, |
| XFA_ItemLayoutProcessorStages_BookendLeader, |
| XFA_ItemLayoutProcessorStages_BreakBefore, |
| XFA_ItemLayoutProcessorStages_Keep, |
| XFA_ItemLayoutProcessorStages_Container, |
| XFA_ItemLayoutProcessorStages_BreakAfter, |
| XFA_ItemLayoutProcessorStages_BookendTrailer, |
| XFA_ItemLayoutProcessorStages_Done, |
| }; |
| |
| class CXFA_LayoutContext { |
| public: |
| CXFA_LayoutContext() |
| : m_prgSpecifiedColumnWidths(NULL), |
| m_fCurColumnWidth(0), |
| m_bCurColumnWidthAvaiable(FALSE), |
| m_pOverflowProcessor(NULL), |
| m_pOverflowNode(NULL) {} |
| ~CXFA_LayoutContext() { m_pOverflowProcessor = NULL; } |
| CFX_ArrayTemplate<FX_FLOAT>* m_prgSpecifiedColumnWidths; |
| FX_FLOAT m_fCurColumnWidth; |
| FX_BOOL m_bCurColumnWidthAvaiable; |
| CXFA_ItemLayoutProcessor* m_pOverflowProcessor; |
| CXFA_Node* m_pOverflowNode; |
| }; |
| |
| class CXFA_ItemLayoutProcessor { |
| public: |
| CXFA_ItemLayoutProcessor(CXFA_Node* pNode, CXFA_LayoutPageMgr* pPageMgr); |
| |
| XFA_ItemLayoutProcessorResult DoLayout( |
| FX_BOOL bUseBreakControl, |
| FX_FLOAT fHeightLimit, |
| FX_FLOAT fRealHeight = XFA_LAYOUT_FLOAT_MAX, |
| CXFA_LayoutContext* pContext = NULL); |
| |
| void GetCurrentComponentPos(FX_FLOAT& fAbsoluteX, FX_FLOAT& fAbsoluteY); |
| |
| void GetCurrentComponentSize(FX_FLOAT& fWidth, FX_FLOAT& fHeight); |
| |
| void SetCurrentComponentPos(FX_FLOAT fAbsoluteX, FX_FLOAT fAbsoluteY); |
| |
| void SetCurrentComponentSize(FX_FLOAT fWidth, FX_FLOAT fHeight); |
| inline CXFA_Node* GetFormNode() { return m_pFormNode; } |
| inline FX_BOOL HasLayoutItem() { return m_pLayoutItem != NULL; } |
| CXFA_ContentLayoutItem* ExtractLayoutItem(); |
| |
| static FX_BOOL IncrementRelayoutNode(CXFA_LayoutProcessor* pLayoutProcessor, |
| CXFA_Node* pNode, |
| CXFA_Node* pParentNode); |
| static void CalculatePositionedContainerPos(CXFA_Node* pNode, |
| FX_FLOAT fWidth, |
| FX_FLOAT fHeight, |
| FX_FLOAT& fAbsoluteX, |
| FX_FLOAT& fAbsoluteY); |
| static FX_BOOL FindLayoutItemSplitPos(CXFA_ContentLayoutItem* pLayoutItem, |
| FX_FLOAT fCurVerticalOffset, |
| FX_FLOAT& fProposedSplitPos, |
| FX_BOOL& bAppChange, |
| FX_BOOL bCalculateMargin = TRUE); |
| FX_FLOAT FindSplitPos(FX_FLOAT fProposedSplitPos); |
| void SplitLayoutItem(CXFA_ContentLayoutItem* pLayoutItem, |
| CXFA_ContentLayoutItem* pSecondParent, |
| FX_FLOAT fSplitPos); |
| void SplitLayoutItem(FX_FLOAT fSplitPos); |
| FX_BOOL JudgePutNextPage( |
| CXFA_ContentLayoutItem* pParentLayoutItem, |
| FX_FLOAT fChildHeight, |
| CFX_ArrayTemplate<CXFA_ContentLayoutItem*>& pKeepItems); |
| FX_BOOL ProcessKeepForSplite( |
| CXFA_ItemLayoutProcessor* pParentProcessor, |
| CXFA_ItemLayoutProcessor* pChildProcessor, |
| XFA_ItemLayoutProcessorResult eRetValue, |
| CFX_ArrayTemplate<CXFA_ContentLayoutItem*>& rgCurLineLayoutItem, |
| FX_FLOAT& fContentCurRowAvailWidth, |
| FX_FLOAT& fContentCurRowHeight, |
| FX_FLOAT& fContentCurRowY, |
| FX_BOOL& bAddedItemInRow, |
| FX_BOOL& bForceEndPage, |
| XFA_ItemLayoutProcessorResult& result); |
| FX_FLOAT InsertKeepLayoutItems(); |
| void DoLayoutPageArea(CXFA_ContainerLayoutItem* pPageAreaLayoutItem); |
| FX_BOOL CalculateRowChildPosition( |
| CFX_ArrayTemplate<CXFA_ContentLayoutItem*>(&rgCurLineLayoutItems)[3], |
| XFA_ATTRIBUTEENUM eFlowStrategy, |
| FX_BOOL bContainerHeightAutoSize, |
| FX_BOOL bContainerWidthAutoSize, |
| FX_FLOAT& fContentCalculatedWidth, |
| FX_FLOAT& fContentCalculatedHeight, |
| FX_FLOAT& fContentCurRowY, |
| FX_FLOAT fContentCurRowHeight, |
| FX_FLOAT fContentWidthLimit, |
| FX_BOOL bRootForceTb = FALSE); |
| |
| void ProcessUnUseOverFlow(CXFA_Node* pLeaderNode, |
| CXFA_Node* pTrailerNode, |
| CXFA_ContentLayoutItem* pTrailerItem, |
| CXFA_Node* pFormNode); |
| void ProcessUnUseBinds(CXFA_Node* pFormNode); |
| FX_BOOL IsAddNewRowForTrailer(CXFA_ContentLayoutItem* pTrailerItem); |
| FX_BOOL JudgeLeaderOrTrailerForOccur(CXFA_Node* pFormNode); |
| CXFA_ContentLayoutItem* CreateContentLayoutItem(CXFA_Node* pFormNode); |
| |
| protected: |
| void DoLayoutPositionedContainer(CXFA_LayoutContext* pContext = NULL); |
| void DoLayoutTableContainer(CXFA_Node* pLayoutNode); |
| XFA_ItemLayoutProcessorResult DoLayoutFlowedContainer( |
| FX_BOOL bUseBreakControl, |
| XFA_ATTRIBUTEENUM eFlowStrategy, |
| FX_FLOAT fHeightLimit, |
| FX_FLOAT fRealHeight, |
| CXFA_LayoutContext* pContext = NULL, |
| FX_BOOL bRootForceTb = FALSE); |
| void DoLayoutField(); |
| void XFA_ItemLayoutProcessor_GotoNextContainerNode( |
| CXFA_Node*& pCurActionNode, |
| XFA_ItemLayoutProcessorStages& nCurStage, |
| CXFA_Node* pParentContainer, |
| FX_BOOL bUsePageBreak); |
| |
| FX_BOOL ProcessKeepNodesForCheckNext(CXFA_Node*& pCurActionNode, |
| XFA_ItemLayoutProcessorStages& nCurStage, |
| CXFA_Node*& pNextContainer, |
| FX_BOOL& bLastKeepNode); |
| |
| FX_BOOL ProcessKeepNodesForBreakBefore( |
| CXFA_Node*& pCurActionNode, |
| XFA_ItemLayoutProcessorStages& nCurStage, |
| CXFA_Node* pContainerNode); |
| |
| CXFA_Node* GetSubformSetParent(CXFA_Node* pSubformSet); |
| |
| public: |
| FX_BOOL m_bKeepBreakFinish; |
| FX_BOOL m_bIsProcessKeep; |
| CXFA_Node* m_pKeepHeadNode; |
| CXFA_Node* m_pKeepTailNode; |
| CXFA_Node* m_pFormNode; |
| CXFA_ContentLayoutItem* m_pLayoutItem; |
| CXFA_ContentLayoutItem* m_pOldLayoutItem; |
| CXFA_Node* m_pCurChildNode; |
| CXFA_ItemLayoutProcessor* m_pCurChildPreprocessor; |
| XFA_ItemLayoutProcessorStages m_nCurChildNodeStage; |
| FX_FLOAT m_fUsedSize; |
| CXFA_LayoutPageMgr* m_pPageMgr; |
| std::list<CXFA_Node*> m_PendingNodes; |
| FX_BOOL m_bBreakPending; |
| CFX_ArrayTemplate<FX_FLOAT> m_rgSpecifiedColumnWidths; |
| CFX_ArrayTemplate<CXFA_ContentLayoutItem*> m_arrayKeepItems; |
| std::map<CXFA_Node*, int32_t> m_PendingNodesCount; |
| FX_FLOAT m_fLastRowWidth; |
| FX_FLOAT m_fLastRowY; |
| FX_FLOAT m_fWidthLimite; |
| FX_BOOL m_bUseInheriated; |
| XFA_ItemLayoutProcessorResult m_ePreProcessRs; |
| FX_BOOL m_bHasAvailHeight; |
| }; |
| FX_BOOL XFA_ItemLayoutProcessor_IsTakingSpace(CXFA_Node* pNode); |
| |
| #endif // XFA_FXFA_PARSER_XFA_LAYOUT_ITEMLAYOUT_H_ |
