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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_LAYOUT_ITEMLAYOUT_H_
#define _XFA_LAYOUT_ITEMLAYOUT_H_
#define XFA_LAYOUT_INVALIDNODE ((CXFA_Node*)(FX_INTPTR)-1)
#define XFA_LAYOUT_FLOAT_PERCISION (0.0005f)
#include "float.h"
#define XFA_LAYOUT_FLOAT_MAX FLT_MAX
class CXFA_ItemLayoutProcessor;
class CXFA_LayoutPageMgr;
class CXFA_ContainerLayoutItemImpl;
class CXFA_ContentLayoutItemImpl;
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 CFX_Object
{
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 CFX_Object
{
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_ContentLayoutItemImpl* 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_ContentLayoutItemImpl* pLayoutItem, FX_FLOAT fCurVerticalOffset, FX_FLOAT& fProposedSplitPos, FX_BOOL& bAppChange, FX_BOOL bCalculateMargin = TRUE);
FX_FLOAT FindSplitPos(FX_FLOAT fProposedSplitPos);
void SplitLayoutItem(CXFA_ContentLayoutItemImpl* pLayoutItem, CXFA_ContentLayoutItemImpl* pSecondParent, FX_FLOAT fSplitPos);
void SplitLayoutItem(FX_FLOAT fSplitPos);
FX_BOOL JudgePutNextPage(CXFA_ContentLayoutItemImpl* pParentLayoutItem, FX_FLOAT fChildHeight, CFX_ArrayTemplate<CXFA_ContentLayoutItemImpl*> &pKeepItems);
FX_BOOL ProcessKeepForSplite(CXFA_ItemLayoutProcessor* pParentProcessor, CXFA_ItemLayoutProcessor* pChildProcessor, XFA_ItemLayoutProcessorResult eRetValue,
CFX_ArrayTemplate<CXFA_ContentLayoutItemImpl*>& 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_ContainerLayoutItemImpl* pPageAreaLayoutItem);
FX_BOOL CalculateRowChildPosition(CFX_ArrayTemplate<CXFA_ContentLayoutItemImpl*>(&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_ContentLayoutItemImpl* pTrailerItem, CXFA_Node* pFormNode);
void ProcessUnUseBinds(CXFA_Node* pFormNode);
FX_BOOL IsAddNewRowForTrailer(CXFA_ContentLayoutItemImpl* pTrailerItem);
FX_BOOL JudgeLeaderOrTrailerForOccur(CXFA_Node* pFormNode);
CXFA_ContentLayoutItemImpl* 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_ContentLayoutItemImpl* m_pLayoutItem;
#ifdef _XFA_LAYOUTITEM_ProcessCACHE_
CXFA_ContentLayoutItemImpl* m_pOldLayoutItem;
#else
CXFA_LayoutPageMgr* m_pPageMgrCreateItem;
#endif
CXFA_Node* m_pCurChildNode;
CXFA_ItemLayoutProcessor* m_pCurChildPreprocessor;
XFA_ItemLayoutProcessorStages m_nCurChildNodeStage;
FX_FLOAT m_fUsedSize;
CXFA_LayoutPageMgr* m_pPageMgr;
CFX_PtrList m_rgPendingNodes;
FX_BOOL m_bBreakPending;
CFX_ArrayTemplate<FX_FLOAT> m_rgSpecifiedColumnWidths;
CFX_ArrayTemplate<CXFA_ContentLayoutItemImpl*> 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
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