// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FXFA_PARSER_XFA_LAYOUT_ITEMLAYOUT_H_
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#define XFA_FXFA_PARSER_XFA_LAYOUT_ITEMLAYOUT_H_
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#include <float.h>
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#include <list>
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#include <map>
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#include "core/fxcrt/include/fx_basic.h"
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#include "xfa/fxfa/parser/xfa_doclayout.h"
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#include "xfa/fxfa/parser/xfa_document_layout_imp.h"
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#define XFA_LAYOUT_INVALIDNODE ((CXFA_Node*)(intptr_t)-1)
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#define XFA_LAYOUT_FLOAT_PERCISION (0.0005f)
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#define XFA_LAYOUT_FLOAT_MAX FLT_MAX
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class CXFA_ContainerLayoutItem;
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class CXFA_ContentLayoutItem;
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class CXFA_ItemLayoutProcessor;
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class CXFA_LayoutPageMgr;
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class CXFA_Node;
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enum XFA_ItemLayoutProcessorResult {
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XFA_ItemLayoutProcessorResult_Done,
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XFA_ItemLayoutProcessorResult_PageFullBreak,
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XFA_ItemLayoutProcessorResult_RowFullBreak,
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XFA_ItemLayoutProcessorResult_ManualBreak,
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};
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enum XFA_ItemLayoutProcessorStages {
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XFA_ItemLayoutProcessorStages_None,
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XFA_ItemLayoutProcessorStages_BookendLeader,
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XFA_ItemLayoutProcessorStages_BreakBefore,
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XFA_ItemLayoutProcessorStages_Keep,
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XFA_ItemLayoutProcessorStages_Container,
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XFA_ItemLayoutProcessorStages_BreakAfter,
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XFA_ItemLayoutProcessorStages_BookendTrailer,
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XFA_ItemLayoutProcessorStages_Done,
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};
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class CXFA_LayoutContext {
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public:
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CXFA_LayoutContext()
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: m_prgSpecifiedColumnWidths(nullptr),
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m_fCurColumnWidth(0),
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m_bCurColumnWidthAvaiable(FALSE),
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m_pOverflowProcessor(nullptr),
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m_pOverflowNode(nullptr) {}
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~CXFA_LayoutContext() { m_pOverflowProcessor = nullptr; }
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CFX_ArrayTemplate<FX_FLOAT>* m_prgSpecifiedColumnWidths;
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FX_FLOAT m_fCurColumnWidth;
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FX_BOOL m_bCurColumnWidthAvaiable;
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CXFA_ItemLayoutProcessor* m_pOverflowProcessor;
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CXFA_Node* m_pOverflowNode;
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};
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class CXFA_ItemLayoutProcessor {
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public:
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CXFA_ItemLayoutProcessor(CXFA_Node* pNode, CXFA_LayoutPageMgr* pPageMgr);
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~CXFA_ItemLayoutProcessor();
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XFA_ItemLayoutProcessorResult DoLayout(
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FX_BOOL bUseBreakControl,
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FX_FLOAT fHeightLimit,
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FX_FLOAT fRealHeight = XFA_LAYOUT_FLOAT_MAX,
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CXFA_LayoutContext* pContext = nullptr);
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void GetCurrentComponentPos(FX_FLOAT& fAbsoluteX, FX_FLOAT& fAbsoluteY);
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void GetCurrentComponentSize(FX_FLOAT& fWidth, FX_FLOAT& fHeight);
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void SetCurrentComponentPos(FX_FLOAT fAbsoluteX, FX_FLOAT fAbsoluteY);
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void SetCurrentComponentSize(FX_FLOAT fWidth, FX_FLOAT fHeight);
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CXFA_Node* GetFormNode() { return m_pFormNode; }
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FX_BOOL HasLayoutItem() { return !!m_pLayoutItem; }
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CXFA_ContentLayoutItem* ExtractLayoutItem();
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static FX_BOOL IncrementRelayoutNode(CXFA_LayoutProcessor* pLayoutProcessor,
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CXFA_Node* pNode,
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CXFA_Node* pParentNode);
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static void CalculatePositionedContainerPos(CXFA_Node* pNode,
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FX_FLOAT fWidth,
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FX_FLOAT fHeight,
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FX_FLOAT& fAbsoluteX,
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FX_FLOAT& fAbsoluteY);
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static FX_BOOL FindLayoutItemSplitPos(CXFA_ContentLayoutItem* pLayoutItem,
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FX_FLOAT fCurVerticalOffset,
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FX_FLOAT& fProposedSplitPos,
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FX_BOOL& bAppChange,
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FX_BOOL bCalculateMargin = TRUE);
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FX_FLOAT FindSplitPos(FX_FLOAT fProposedSplitPos);
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void SplitLayoutItem(CXFA_ContentLayoutItem* pLayoutItem,
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CXFA_ContentLayoutItem* pSecondParent,
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FX_FLOAT fSplitPos);
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void SplitLayoutItem(FX_FLOAT fSplitPos);
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FX_BOOL JudgePutNextPage(
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CXFA_ContentLayoutItem* pParentLayoutItem,
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FX_FLOAT fChildHeight,
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CFX_ArrayTemplate<CXFA_ContentLayoutItem*>& pKeepItems);
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FX_BOOL ProcessKeepForSplite(
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CXFA_ItemLayoutProcessor* pParentProcessor,
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CXFA_ItemLayoutProcessor* pChildProcessor,
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XFA_ItemLayoutProcessorResult eRetValue,
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CFX_ArrayTemplate<CXFA_ContentLayoutItem*>& rgCurLineLayoutItem,
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FX_FLOAT& fContentCurRowAvailWidth,
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FX_FLOAT& fContentCurRowHeight,
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FX_FLOAT& fContentCurRowY,
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FX_BOOL& bAddedItemInRow,
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FX_BOOL& bForceEndPage,
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XFA_ItemLayoutProcessorResult& result);
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FX_FLOAT InsertKeepLayoutItems();
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void DoLayoutPageArea(CXFA_ContainerLayoutItem* pPageAreaLayoutItem);
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FX_BOOL CalculateRowChildPosition(
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CFX_ArrayTemplate<CXFA_ContentLayoutItem*>(&rgCurLineLayoutItems)[3],
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XFA_ATTRIBUTEENUM eFlowStrategy,
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FX_BOOL bContainerHeightAutoSize,
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FX_BOOL bContainerWidthAutoSize,
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FX_FLOAT& fContentCalculatedWidth,
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FX_FLOAT& fContentCalculatedHeight,
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FX_FLOAT& fContentCurRowY,
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FX_FLOAT fContentCurRowHeight,
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FX_FLOAT fContentWidthLimit,
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FX_BOOL bRootForceTb = FALSE);
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void ProcessUnUseOverFlow(CXFA_Node* pLeaderNode,
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CXFA_Node* pTrailerNode,
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CXFA_ContentLayoutItem* pTrailerItem,
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CXFA_Node* pFormNode);
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void ProcessUnUseBinds(CXFA_Node* pFormNode);
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FX_BOOL IsAddNewRowForTrailer(CXFA_ContentLayoutItem* pTrailerItem);
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FX_BOOL JudgeLeaderOrTrailerForOccur(CXFA_Node* pFormNode);
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CXFA_ContentLayoutItem* CreateContentLayoutItem(CXFA_Node* pFormNode);
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protected:
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void DoLayoutPositionedContainer(CXFA_LayoutContext* pContext = nullptr);
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void DoLayoutTableContainer(CXFA_Node* pLayoutNode);
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XFA_ItemLayoutProcessorResult DoLayoutFlowedContainer(
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FX_BOOL bUseBreakControl,
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XFA_ATTRIBUTEENUM eFlowStrategy,
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FX_FLOAT fHeightLimit,
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FX_FLOAT fRealHeight,
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CXFA_LayoutContext* pContext = nullptr,
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FX_BOOL bRootForceTb = FALSE);
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void DoLayoutField();
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void XFA_ItemLayoutProcessor_GotoNextContainerNode(
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CXFA_Node*& pCurActionNode,
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XFA_ItemLayoutProcessorStages& nCurStage,
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CXFA_Node* pParentContainer,
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FX_BOOL bUsePageBreak);
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FX_BOOL ProcessKeepNodesForCheckNext(CXFA_Node*& pCurActionNode,
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XFA_ItemLayoutProcessorStages& nCurStage,
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CXFA_Node*& pNextContainer,
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FX_BOOL& bLastKeepNode);
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FX_BOOL ProcessKeepNodesForBreakBefore(
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CXFA_Node*& pCurActionNode,
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XFA_ItemLayoutProcessorStages& nCurStage,
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CXFA_Node* pContainerNode);
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CXFA_Node* GetSubformSetParent(CXFA_Node* pSubformSet);
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public:
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FX_BOOL m_bKeepBreakFinish;
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FX_BOOL m_bIsProcessKeep;
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CXFA_Node* m_pKeepHeadNode;
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CXFA_Node* m_pKeepTailNode;
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CXFA_Node* m_pFormNode;
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CXFA_ContentLayoutItem* m_pLayoutItem;
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CXFA_ContentLayoutItem* m_pOldLayoutItem;
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CXFA_Node* m_pCurChildNode;
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CXFA_ItemLayoutProcessor* m_pCurChildPreprocessor;
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XFA_ItemLayoutProcessorStages m_nCurChildNodeStage;
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FX_FLOAT m_fUsedSize;
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CXFA_LayoutPageMgr* m_pPageMgr;
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std::list<CXFA_Node*> m_PendingNodes;
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FX_BOOL m_bBreakPending;
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CFX_ArrayTemplate<FX_FLOAT> m_rgSpecifiedColumnWidths;
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CFX_ArrayTemplate<CXFA_ContentLayoutItem*> m_arrayKeepItems;
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std::map<CXFA_Node*, int32_t> m_PendingNodesCount;
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FX_FLOAT m_fLastRowWidth;
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FX_FLOAT m_fLastRowY;
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FX_FLOAT m_fWidthLimite;
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FX_BOOL m_bUseInheriated;
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XFA_ItemLayoutProcessorResult m_ePreProcessRs;
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FX_BOOL m_bHasAvailHeight;
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};
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FX_BOOL XFA_ItemLayoutProcessor_IsTakingSpace(CXFA_Node* pNode);
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#endif // XFA_FXFA_PARSER_XFA_LAYOUT_ITEMLAYOUT_H_
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