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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_XFA_LAYOUT_ITEMLAYOUT_H_
#define XFA_FXFA_PARSER_XFA_LAYOUT_ITEMLAYOUT_H_
#include <float.h>
#include <list>
#include <map>
#include "core/fxcrt/fx_basic.h"
#include "xfa/fxfa/fxfa_basic.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_LayoutProcessor;
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(nullptr),
m_fCurColumnWidth(0),
m_bCurColumnWidthAvaiable(false),
m_pOverflowProcessor(nullptr),
m_pOverflowNode(nullptr) {}
~CXFA_LayoutContext() { m_pOverflowProcessor = nullptr; }
CFX_ArrayTemplate<FX_FLOAT>* m_prgSpecifiedColumnWidths;
FX_FLOAT m_fCurColumnWidth;
bool m_bCurColumnWidthAvaiable;
CXFA_ItemLayoutProcessor* m_pOverflowProcessor;
CXFA_Node* m_pOverflowNode;
};
class CXFA_ItemLayoutProcessor {
public:
CXFA_ItemLayoutProcessor(CXFA_Node* pNode, CXFA_LayoutPageMgr* pPageMgr);
~CXFA_ItemLayoutProcessor();
XFA_ItemLayoutProcessorResult DoLayout(
bool bUseBreakControl,
FX_FLOAT fHeightLimit,
FX_FLOAT fRealHeight = XFA_LAYOUT_FLOAT_MAX,
CXFA_LayoutContext* pContext = nullptr);
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);
CXFA_Node* GetFormNode() { return m_pFormNode; }
bool HasLayoutItem() { return !!m_pLayoutItem; }
CXFA_ContentLayoutItem* ExtractLayoutItem();
static 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 bool FindLayoutItemSplitPos(CXFA_ContentLayoutItem* pLayoutItem,
FX_FLOAT fCurVerticalOffset,
FX_FLOAT& fProposedSplitPos,
bool& bAppChange,
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);
bool JudgePutNextPage(CXFA_ContentLayoutItem* pParentLayoutItem,
FX_FLOAT fChildHeight,
CFX_ArrayTemplate<CXFA_ContentLayoutItem*>& pKeepItems);
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,
bool& bAddedItemInRow,
bool& bForceEndPage,
XFA_ItemLayoutProcessorResult& result);
FX_FLOAT InsertKeepLayoutItems();
void DoLayoutPageArea(CXFA_ContainerLayoutItem* pPageAreaLayoutItem);
bool CalculateRowChildPosition(
CFX_ArrayTemplate<CXFA_ContentLayoutItem*> (&rgCurLineLayoutItems)[3],
XFA_ATTRIBUTEENUM eFlowStrategy,
bool bContainerHeightAutoSize,
bool bContainerWidthAutoSize,
FX_FLOAT& fContentCalculatedWidth,
FX_FLOAT& fContentCalculatedHeight,
FX_FLOAT& fContentCurRowY,
FX_FLOAT fContentCurRowHeight,
FX_FLOAT fContentWidthLimit,
bool bRootForceTb = false);
void ProcessUnUseOverFlow(CXFA_Node* pLeaderNode,
CXFA_Node* pTrailerNode,
CXFA_ContentLayoutItem* pTrailerItem,
CXFA_Node* pFormNode);
void ProcessUnUseBinds(CXFA_Node* pFormNode);
bool IsAddNewRowForTrailer(CXFA_ContentLayoutItem* pTrailerItem);
bool JudgeLeaderOrTrailerForOccur(CXFA_Node* pFormNode);
CXFA_ContentLayoutItem* CreateContentLayoutItem(CXFA_Node* pFormNode);
protected:
void DoLayoutPositionedContainer(CXFA_LayoutContext* pContext = nullptr);
void DoLayoutTableContainer(CXFA_Node* pLayoutNode);
XFA_ItemLayoutProcessorResult DoLayoutFlowedContainer(
bool bUseBreakControl,
XFA_ATTRIBUTEENUM eFlowStrategy,
FX_FLOAT fHeightLimit,
FX_FLOAT fRealHeight,
CXFA_LayoutContext* pContext = nullptr,
bool bRootForceTb = false);
void DoLayoutField();
void XFA_ItemLayoutProcessor_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);
public:
bool m_bKeepBreakFinish;
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;
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;
bool m_bUseInheriated;
XFA_ItemLayoutProcessorResult m_ePreProcessRs;
bool m_bHasAvailHeight;
};
bool XFA_ItemLayoutProcessor_IsTakingSpace(CXFA_Node* pNode);
#endif // XFA_FXFA_PARSER_XFA_LAYOUT_ITEMLAYOUT_H_
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