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// 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_ITEMLAYOUTPROCESSOR_H_
#define XFA_FXFA_PARSER_CXFA_ITEMLAYOUTPROCESSOR_H_
#include <float.h>
#include <list>
#include <map>
#include <vector>
#include "core/fxcrt/fx_coordinates.h"
#include "xfa/fxfa/fxfa_basic.h"
#define XFA_LAYOUT_INVALIDNODE nullptr
#define XFA_LAYOUT_FLOAT_PERCISION (0.0005f)
class CXFA_ContainerLayoutItem;
class CXFA_ContentLayoutItem;
class CXFA_ItemLayoutProcessor;
class CXFA_LayoutContext;
class CXFA_LayoutPageMgr;
class CXFA_LayoutProcessor;
class CXFA_Node;
enum class XFA_ItemLayoutProcessorResult {
Done,
PageFullBreak,
RowFullBreak,
ManualBreak,
};
enum class XFA_ItemLayoutProcessorStages {
None,
BookendLeader,
BreakBefore,
Keep,
Container,
BreakAfter,
BookendTrailer,
Done,
};
class CXFA_ItemLayoutProcessor {
public:
CXFA_ItemLayoutProcessor(CXFA_Node* pNode, CXFA_LayoutPageMgr* pPageMgr);
~CXFA_ItemLayoutProcessor();
XFA_ItemLayoutProcessorResult DoLayout(bool bUseBreakControl,
float fHeightLimit,
float fRealHeight,
CXFA_LayoutContext* pContext);
void DoLayoutPageArea(CXFA_ContainerLayoutItem* pPageAreaLayoutItem);
CXFA_Node* GetFormNode() { return m_pFormNode; }
CXFA_ContentLayoutItem* ExtractLayoutItem();
private:
CFX_SizeF GetCurrentComponentSize();
bool HasLayoutItem() const { return !!m_pLayoutItem; }
void SplitLayoutItem(float fSplitPos);
float FindSplitPos(float fProposedSplitPos);
bool ProcessKeepForSplit(
CXFA_ItemLayoutProcessor* pChildProcessor,
XFA_ItemLayoutProcessorResult eRetValue,
std::vector<CXFA_ContentLayoutItem*>* rgCurLineLayoutItem,
float* fContentCurRowAvailWidth,
float* fContentCurRowHeight,
float* fContentCurRowY,
bool* bAddedItemInRow,
bool* bForceEndPage,
XFA_ItemLayoutProcessorResult* result);
void ProcessUnUseOverFlow(CXFA_Node* pLeaderNode,
CXFA_Node* pTrailerNode,
CXFA_ContentLayoutItem* pTrailerItem,
CXFA_Node* pFormNode);
bool IsAddNewRowForTrailer(CXFA_ContentLayoutItem* pTrailerItem);
bool JudgeLeaderOrTrailerForOccur(CXFA_Node* pFormNode);
CXFA_ContentLayoutItem* CreateContentLayoutItem(CXFA_Node* pFormNode);
void SetCurrentComponentPos(const CFX_PointF& pos);
void SetCurrentComponentSize(const CFX_SizeF& size);
void SplitLayoutItem(CXFA_ContentLayoutItem* pLayoutItem,
CXFA_ContentLayoutItem* pSecondParent,
float fSplitPos);
float InsertKeepLayoutItems();
bool CalculateRowChildPosition(
std::vector<CXFA_ContentLayoutItem*> (&rgCurLineLayoutItems)[3],
XFA_AttributeEnum eFlowStrategy,
bool bContainerHeightAutoSize,
bool bContainerWidthAutoSize,
float* fContentCalculatedWidth,
float* fContentCalculatedHeight,
float* fContentCurRowY,
float fContentCurRowHeight,
float fContentWidthLimit,
bool bRootForceTb);
void ProcessUnUseBinds(CXFA_Node* pFormNode);
bool JudgePutNextPage(CXFA_ContentLayoutItem* pParentLayoutItem,
float fChildHeight,
std::vector<CXFA_ContentLayoutItem*>* pKeepItems);
void DoLayoutPositionedContainer(CXFA_LayoutContext* pContext);
void DoLayoutTableContainer(CXFA_Node* pLayoutNode);
XFA_ItemLayoutProcessorResult DoLayoutFlowedContainer(
bool bUseBreakControl,
XFA_AttributeEnum eFlowStrategy,
float fHeightLimit,
float fRealHeight,
CXFA_LayoutContext* pContext,
bool bRootForceTb);
void DoLayoutField();
void GotoNextContainerNode(CXFA_Node*& pCurActionNode,
XFA_ItemLayoutProcessorStages* nCurStage,
CXFA_Node* pParentContainer,
bool bUsePageBreak);
bool ProcessKeepNodesForCheckNext(CXFA_Node*& pCurActionNode,
XFA_ItemLayoutProcessorStages* nCurStage,
CXFA_Node*& pNextContainer,
bool& bLastKeepNode);
bool ProcessKeepNodesForBreakBefore(CXFA_Node*& pCurActionNode,
XFA_ItemLayoutProcessorStages* nCurStage,
CXFA_Node* pContainerNode);
CXFA_Node* GetSubformSetParent(CXFA_Node* pSubformSet);
void UpdatePendingItemLayout(CXFA_ContentLayoutItem* pLayoutItem);
void AddTrailerBeforeSplit(float fSplitPos,
CXFA_ContentLayoutItem* pTrailerLayoutItem,
bool bUseInherited);
void AddLeaderAfterSplit(CXFA_ContentLayoutItem* pLeaderLayoutItem);
void AddPendingNode(CXFA_Node* pPendingNode, bool bBreakPending);
float InsertPendingItems(CXFA_Node* pCurChildNode);
XFA_ItemLayoutProcessorResult InsertFlowedItem(
CXFA_ItemLayoutProcessor* pProcessor,
bool bContainerWidthAutoSize,
bool bContainerHeightAutoSize,
float fContainerHeight,
XFA_AttributeEnum eFlowStrategy,
uint8_t* uCurHAlignState,
std::vector<CXFA_ContentLayoutItem*> (&rgCurLineLayoutItems)[3],
bool bUseBreakControl,
float fAvailHeight,
float fRealHeight,
float fContentWidthLimit,
float* fContentCurRowY,
float* fContentCurRowAvailWidth,
float* fContentCurRowHeight,
bool* bAddedItemInRow,
bool* bForceEndPage,
CXFA_LayoutContext* pLayoutContext,
bool bNewRow);
CXFA_Node* m_pFormNode;
CXFA_ContentLayoutItem* m_pLayoutItem = nullptr;
CXFA_Node* m_pCurChildNode = XFA_LAYOUT_INVALIDNODE;
float m_fUsedSize = 0;
CXFA_LayoutPageMgr* m_pPageMgr;
std::list<CXFA_Node*> m_PendingNodes;
bool m_bBreakPending = true;
std::vector<float> m_rgSpecifiedColumnWidths;
std::vector<CXFA_ContentLayoutItem*> m_arrayKeepItems;
float m_fLastRowWidth = 0;
float m_fLastRowY = 0;
bool m_bUseInheriated = false;
XFA_ItemLayoutProcessorResult m_ePreProcessRs =
XFA_ItemLayoutProcessorResult::Done;
bool m_bKeepBreakFinish = false;
bool m_bIsProcessKeep = false;
CXFA_Node* m_pKeepHeadNode = nullptr;
CXFA_Node* m_pKeepTailNode = nullptr;
CXFA_ContentLayoutItem* m_pOldLayoutItem = nullptr;
CXFA_ItemLayoutProcessor* m_pCurChildPreprocessor = nullptr;
XFA_ItemLayoutProcessorStages m_nCurChildNodeStage =
XFA_ItemLayoutProcessorStages::None;
std::map<CXFA_Node*, int32_t> m_PendingNodesCount;
float m_fWidthLimite = 0;
bool m_bHasAvailHeight = true;
};
#endif // XFA_FXFA_PARSER_CXFA_ITEMLAYOUTPROCESSOR_H_
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