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Diffstat (limited to 'xfa/fxfa/parser/xfa_layout_itemlayout.h')
| -rw-r--r-- | xfa/fxfa/parser/xfa_layout_itemlayout.h | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/xfa/fxfa/parser/xfa_layout_itemlayout.h b/xfa/fxfa/parser/xfa_layout_itemlayout.h new file mode 100644 index 0000000000..362e1c19fc --- /dev/null +++ b/xfa/fxfa/parser/xfa_layout_itemlayout.h @@ -0,0 +1,195 @@ +// 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 "core/include/fxcrt/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; + CFX_MapPtrToPtr 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_ |