blob: f5b09205486d63ef61cd2894533ce543b32f10dc [file] [log] [blame]
// 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
#include "xfa/fxfa/parser/xfa_layout_itemlayout.h"
#include <algorithm>
#include <memory>
#include "xfa/fxfa/app/xfa_ffnotify.h"
#include "xfa/fxfa/parser/cxfa_occur.h"
#include "xfa/fxfa/parser/xfa_doclayout.h"
#include "xfa/fxfa/parser/xfa_document.h"
#include "xfa/fxfa/parser/xfa_document_layout_imp.h"
#include "xfa/fxfa/parser/xfa_layout_appadapter.h"
#include "xfa/fxfa/parser/xfa_layout_pagemgr_new.h"
#include "xfa/fxfa/parser/xfa_localemgr.h"
#include "xfa/fxfa/parser/xfa_object.h"
#include "xfa/fxfa/parser/xfa_parser.h"
#include "xfa/fxfa/parser/xfa_parser_imp.h"
#include "xfa/fxfa/parser/xfa_script.h"
#include "xfa/fxfa/parser/xfa_utils.h"
namespace {
int32_t SeparateStringW(const FX_WCHAR* pStr,
int32_t iStrLen,
FX_WCHAR delimiter,
CFX_WideStringArray& pieces) {
if (!pStr)
return 0;
if (iStrLen < 0)
iStrLen = FXSYS_wcslen(pStr);
const FX_WCHAR* pToken = pStr;
const FX_WCHAR* pEnd = pStr + iStrLen;
while (TRUE) {
if (pStr >= pEnd || delimiter == *pStr) {
CFX_WideString sub(pToken, pStr - pToken);
pieces.Add(sub);
pToken = pStr + 1;
if (pStr >= pEnd)
break;
}
pStr++;
}
return pieces.GetSize();
}
} // namespace
CXFA_ItemLayoutProcessor::CXFA_ItemLayoutProcessor(CXFA_Node* pNode,
CXFA_LayoutPageMgr* pPageMgr)
: m_bKeepBreakFinish(FALSE),
m_bIsProcessKeep(FALSE),
m_pKeepHeadNode(nullptr),
m_pKeepTailNode(nullptr),
m_pFormNode(pNode),
m_pLayoutItem(nullptr),
m_pOldLayoutItem(nullptr),
m_pCurChildNode(XFA_LAYOUT_INVALIDNODE),
m_pCurChildPreprocessor(nullptr),
m_nCurChildNodeStage(XFA_ItemLayoutProcessorStages_None),
m_fUsedSize(0),
m_pPageMgr(pPageMgr),
m_bBreakPending(TRUE),
m_fLastRowWidth(0),
m_fLastRowY(0),
m_fWidthLimite(0),
m_bUseInheriated(FALSE),
m_ePreProcessRs(XFA_ItemLayoutProcessorResult_Done),
m_bHasAvailHeight(TRUE) {
ASSERT(m_pFormNode && (m_pFormNode->IsContainerNode() ||
m_pFormNode->GetElementType() == XFA_Element::Form));
m_pOldLayoutItem =
(CXFA_ContentLayoutItem*)m_pFormNode->GetUserData(XFA_LAYOUTITEMKEY);
}
CXFA_ItemLayoutProcessor::~CXFA_ItemLayoutProcessor() {}
CXFA_ContentLayoutItem* CXFA_ItemLayoutProcessor::CreateContentLayoutItem(
CXFA_Node* pFormNode) {
if (!pFormNode) {
return nullptr;
}
CXFA_ContentLayoutItem* pLayoutItem = nullptr;
if (m_pOldLayoutItem) {
pLayoutItem = m_pOldLayoutItem;
m_pOldLayoutItem = m_pOldLayoutItem->m_pNext;
return pLayoutItem;
}
pLayoutItem = (CXFA_ContentLayoutItem*)pFormNode->GetDocument()
->GetParser()
->GetNotify()
->OnCreateLayoutItem(pFormNode);
CXFA_ContentLayoutItem* pPrevLayoutItem =
(CXFA_ContentLayoutItem*)pFormNode->GetUserData(XFA_LAYOUTITEMKEY);
if (pPrevLayoutItem) {
while (pPrevLayoutItem->m_pNext) {
pPrevLayoutItem = pPrevLayoutItem->m_pNext;
}
pPrevLayoutItem->m_pNext = pLayoutItem;
pLayoutItem->m_pPrev = pPrevLayoutItem;
} else {
pFormNode->SetUserData(XFA_LAYOUTITEMKEY, pLayoutItem);
}
return pLayoutItem;
}
FX_BOOL CXFA_ItemLayoutProcessor::FindLayoutItemSplitPos(
CXFA_ContentLayoutItem* pLayoutItem,
FX_FLOAT fCurVerticalOffset,
FX_FLOAT& fProposedSplitPos,
FX_BOOL& bAppChange,
FX_BOOL bCalculateMargin) {
CXFA_Node* pFormNode = pLayoutItem->m_pFormNode;
if (fProposedSplitPos > fCurVerticalOffset + XFA_LAYOUT_FLOAT_PERCISION &&
fProposedSplitPos <= fCurVerticalOffset + pLayoutItem->m_sSize.y -
XFA_LAYOUT_FLOAT_PERCISION) {
switch (pFormNode->GetIntact()) {
case XFA_ATTRIBUTEENUM_None: {
FX_BOOL bAnyChanged = FALSE;
CXFA_Document* pDocument = pFormNode->GetDocument();
CXFA_FFNotify* pNotify = pDocument->GetParser()->GetNotify();
FX_FLOAT fCurTopMargin = 0, fCurBottomMargin = 0;
CXFA_Node* pMarginNode =
pFormNode->GetFirstChildByClass(XFA_Element::Margin);
if (pMarginNode && bCalculateMargin) {
fCurTopMargin = pMarginNode->GetMeasure(XFA_ATTRIBUTE_TopInset)
.ToUnit(XFA_UNIT_Pt);
fCurBottomMargin = pMarginNode->GetMeasure(XFA_ATTRIBUTE_BottomInset)
.ToUnit(XFA_UNIT_Pt);
}
FX_BOOL bChanged = TRUE;
while (bChanged) {
bChanged = FALSE;
{
FX_FLOAT fRelSplitPos = fProposedSplitPos - fCurVerticalOffset;
if (pNotify->FindSplitPos(pFormNode, pLayoutItem->GetIndex(),
fRelSplitPos)) {
bAnyChanged = TRUE;
bChanged = TRUE;
fProposedSplitPos = fCurVerticalOffset + fRelSplitPos;
bAppChange = TRUE;
if (fProposedSplitPos <=
fCurVerticalOffset + XFA_LAYOUT_FLOAT_PERCISION) {
return TRUE;
}
}
}
FX_FLOAT fRelSplitPos = fProposedSplitPos - fCurBottomMargin;
for (CXFA_ContentLayoutItem* pChildItem =
(CXFA_ContentLayoutItem*)pLayoutItem->m_pFirstChild;
pChildItem;
pChildItem =
(CXFA_ContentLayoutItem*)pChildItem->m_pNextSibling) {
FX_FLOAT fChildOffset =
fCurVerticalOffset + fCurTopMargin + pChildItem->m_sPos.y;
FX_BOOL bChange = FALSE;
if (FindLayoutItemSplitPos(pChildItem, fChildOffset, fRelSplitPos,
bChange, bCalculateMargin)) {
if (fRelSplitPos - fChildOffset < XFA_LAYOUT_FLOAT_PERCISION &&
bChange) {
fProposedSplitPos = fRelSplitPos - fCurTopMargin;
} else {
fProposedSplitPos = fRelSplitPos + fCurBottomMargin;
}
bAnyChanged = TRUE;
bChanged = TRUE;
if (fProposedSplitPos <=
fCurVerticalOffset + XFA_LAYOUT_FLOAT_PERCISION) {
return TRUE;
}
if (bAnyChanged) {
break;
}
}
}
}
return bAnyChanged;
} break;
case XFA_ATTRIBUTEENUM_ContentArea:
case XFA_ATTRIBUTEENUM_PageArea: {
fProposedSplitPos = fCurVerticalOffset;
return TRUE;
}
default:
return FALSE;
}
}
return FALSE;
}
static XFA_ATTRIBUTEENUM XFA_ItemLayoutProcessor_GetLayout(
CXFA_Node* pFormNode,
FX_BOOL& bRootForceTb) {
bRootForceTb = FALSE;
XFA_ATTRIBUTEENUM eLayoutMode;
if (pFormNode->TryEnum(XFA_ATTRIBUTE_Layout, eLayoutMode, FALSE)) {
return eLayoutMode;
}
CXFA_Node* pParentNode = pFormNode->GetNodeItem(XFA_NODEITEM_Parent);
if (pParentNode && pParentNode->GetElementType() == XFA_Element::Form) {
bRootForceTb = TRUE;
return XFA_ATTRIBUTEENUM_Tb;
}
return XFA_ATTRIBUTEENUM_Position;
}
static FX_BOOL XFA_ExistContainerKeep(CXFA_Node* pCurNode, FX_BOOL bPreFind) {
if (!pCurNode || !XFA_ItemLayoutProcessor_IsTakingSpace(pCurNode)) {
return FALSE;
}
XFA_NODEITEM eItemType = XFA_NODEITEM_PrevSibling;
if (!bPreFind) {
eItemType = XFA_NODEITEM_NextSibling;
}
CXFA_Node* pPreContainer =
pCurNode->GetNodeItem(eItemType, XFA_ObjectType::ContainerNode);
if (!pPreContainer) {
return FALSE;
}
CXFA_Node* pKeep = pCurNode->GetFirstChildByClass(XFA_Element::Keep);
if (pKeep) {
XFA_ATTRIBUTEENUM ePrevious;
XFA_ATTRIBUTE eKeepType = XFA_ATTRIBUTE_Previous;
if (!bPreFind) {
eKeepType = XFA_ATTRIBUTE_Next;
}
if (pKeep->TryEnum(eKeepType, ePrevious, FALSE)) {
if (ePrevious == XFA_ATTRIBUTEENUM_ContentArea ||
ePrevious == XFA_ATTRIBUTEENUM_PageArea) {
return TRUE;
}
}
}
pKeep = pPreContainer->GetFirstChildByClass(XFA_Element::Keep);
if (!pKeep) {
return FALSE;
}
XFA_ATTRIBUTEENUM eNext;
XFA_ATTRIBUTE eKeepType = XFA_ATTRIBUTE_Next;
if (!bPreFind) {
eKeepType = XFA_ATTRIBUTE_Previous;
}
if (!pKeep->TryEnum(eKeepType, eNext, FALSE)) {
return FALSE;
}
if (eNext == XFA_ATTRIBUTEENUM_ContentArea ||
eNext == XFA_ATTRIBUTEENUM_PageArea) {
return TRUE;
}
return FALSE;
}
FX_FLOAT CXFA_ItemLayoutProcessor::FindSplitPos(FX_FLOAT fProposedSplitPos) {
ASSERT(m_pLayoutItem);
XFA_ATTRIBUTEENUM eLayout = m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout);
FX_BOOL bCalculateMargin = TRUE;
if (eLayout == XFA_ATTRIBUTEENUM_Position) {
bCalculateMargin = FALSE;
}
while (fProposedSplitPos > XFA_LAYOUT_FLOAT_PERCISION) {
FX_BOOL bAppChange = FALSE;
if (!FindLayoutItemSplitPos(m_pLayoutItem, 0, fProposedSplitPos, bAppChange,
bCalculateMargin)) {
break;
}
}
return fProposedSplitPos;
}
void CXFA_ItemLayoutProcessor::SplitLayoutItem(
CXFA_ContentLayoutItem* pLayoutItem,
CXFA_ContentLayoutItem* pSecondParent,
FX_FLOAT fSplitPos) {
FX_FLOAT fCurTopMargin = 0, fCurBottomMargin = 0;
XFA_ATTRIBUTEENUM eLayout = m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout);
FX_BOOL bCalculateMargin = TRUE;
if (eLayout == XFA_ATTRIBUTEENUM_Position) {
bCalculateMargin = FALSE;
}
CXFA_Node* pMarginNode =
pLayoutItem->m_pFormNode->GetFirstChildByClass(XFA_Element::Margin);
if (pMarginNode && bCalculateMargin) {
fCurTopMargin =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_TopInset).ToUnit(XFA_UNIT_Pt);
fCurBottomMargin =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_BottomInset).ToUnit(XFA_UNIT_Pt);
}
CXFA_ContentLayoutItem* pSecondLayoutItem = nullptr;
if (m_pCurChildPreprocessor &&
m_pCurChildPreprocessor->m_pFormNode == pLayoutItem->m_pFormNode) {
pSecondLayoutItem = m_pCurChildPreprocessor->CreateContentLayoutItem(
pLayoutItem->m_pFormNode);
} else {
pSecondLayoutItem = CreateContentLayoutItem(pLayoutItem->m_pFormNode);
}
pSecondLayoutItem->m_sPos.x = pLayoutItem->m_sPos.x;
pSecondLayoutItem->m_sSize.x = pLayoutItem->m_sSize.x;
pSecondLayoutItem->m_sPos.y = 0;
pSecondLayoutItem->m_sSize.y = pLayoutItem->m_sSize.y - fSplitPos;
pLayoutItem->m_sSize.y -= pSecondLayoutItem->m_sSize.y;
if (pLayoutItem->m_pFirstChild) {
pSecondLayoutItem->m_sSize.y += fCurTopMargin;
}
if (pSecondParent) {
pSecondParent->AddChild(pSecondLayoutItem);
if (fCurTopMargin > 0 && pLayoutItem->m_pFirstChild) {
pSecondParent->m_sSize.y += fCurTopMargin;
CXFA_ContentLayoutItem* pParentItem =
(CXFA_ContentLayoutItem*)pSecondParent->m_pParent;
while (pParentItem) {
pParentItem->m_sSize.y += fCurTopMargin;
pParentItem = (CXFA_ContentLayoutItem*)pParentItem->m_pParent;
}
}
} else {
pSecondLayoutItem->m_pParent = pLayoutItem->m_pParent;
pSecondLayoutItem->m_pNextSibling = pLayoutItem->m_pNextSibling;
pLayoutItem->m_pNextSibling = pSecondLayoutItem;
}
CXFA_ContentLayoutItem* pChildren =
(CXFA_ContentLayoutItem*)pLayoutItem->m_pFirstChild;
pLayoutItem->m_pFirstChild = nullptr;
FX_FLOAT lHeightForKeep = 0;
CFX_ArrayTemplate<CXFA_ContentLayoutItem*> keepLayoutItems;
FX_FLOAT fAddMarginHeight = 0;
for (CXFA_ContentLayoutItem *pChildItem = pChildren, *pChildNext = nullptr;
pChildItem; pChildItem = pChildNext) {
pChildNext = (CXFA_ContentLayoutItem*)pChildItem->m_pNextSibling;
pChildItem->m_pNextSibling = nullptr;
if (fSplitPos <= fCurTopMargin + pChildItem->m_sPos.y + fCurBottomMargin +
XFA_LAYOUT_FLOAT_PERCISION) {
if (!XFA_ExistContainerKeep(pChildItem->m_pFormNode, TRUE)) {
pChildItem->m_sPos.y -= fSplitPos - fCurBottomMargin;
pChildItem->m_sPos.y += lHeightForKeep;
pChildItem->m_sPos.y += fAddMarginHeight;
pSecondLayoutItem->AddChild(pChildItem);
} else {
if (lHeightForKeep < XFA_LAYOUT_FLOAT_PERCISION) {
for (int32_t iIndex = 0; iIndex < keepLayoutItems.GetSize();
iIndex++) {
CXFA_ContentLayoutItem* pPreItem = keepLayoutItems[iIndex];
pLayoutItem->RemoveChild(pPreItem);
pPreItem->m_sPos.y -= fSplitPos;
if (pPreItem->m_sPos.y < 0) {
pPreItem->m_sPos.y = 0;
}
if (pPreItem->m_sPos.y + pPreItem->m_sSize.y > lHeightForKeep) {
pPreItem->m_sPos.y = lHeightForKeep;
lHeightForKeep += pPreItem->m_sSize.y;
pSecondLayoutItem->m_sSize.y += pPreItem->m_sSize.y;
if (pSecondParent) {
pSecondParent->m_sSize.y += pPreItem->m_sSize.y;
}
}
pSecondLayoutItem->AddChild(pPreItem);
}
}
pChildItem->m_sPos.y -= fSplitPos;
pChildItem->m_sPos.y += lHeightForKeep;
pChildItem->m_sPos.y += fAddMarginHeight;
pSecondLayoutItem->AddChild(pChildItem);
}
} else if (fSplitPos + XFA_LAYOUT_FLOAT_PERCISION >=
fCurTopMargin + fCurBottomMargin + pChildItem->m_sPos.y +
pChildItem->m_sSize.y) {
pLayoutItem->AddChild(pChildItem);
if (XFA_ExistContainerKeep(pChildItem->m_pFormNode, FALSE)) {
keepLayoutItems.Add(pChildItem);
} else {
keepLayoutItems.RemoveAll();
}
} else {
FX_FLOAT fOldHeight = pSecondLayoutItem->m_sSize.y;
SplitLayoutItem(
pChildItem, pSecondLayoutItem,
fSplitPos - fCurTopMargin - fCurBottomMargin - pChildItem->m_sPos.y);
fAddMarginHeight = pSecondLayoutItem->m_sSize.y - fOldHeight;
pLayoutItem->AddChild(pChildItem);
}
}
}
void CXFA_ItemLayoutProcessor::SplitLayoutItem(FX_FLOAT fSplitPos) {
ASSERT(m_pLayoutItem);
SplitLayoutItem(m_pLayoutItem, nullptr, fSplitPos);
}
CXFA_ContainerLayoutItem* CXFA_LayoutItem::GetPage() const {
for (CXFA_LayoutItem* pCurNode = const_cast<CXFA_LayoutItem*>(this); pCurNode;
pCurNode = pCurNode->m_pParent) {
if (pCurNode->m_pFormNode->GetElementType() == XFA_Element::PageArea)
return static_cast<CXFA_ContainerLayoutItem*>(pCurNode);
}
return nullptr;
}
CXFA_Node* CXFA_LayoutItem::GetFormNode() const {
return m_pFormNode;
}
void CXFA_LayoutItem::GetRect(CFX_RectF& rtLayout, FX_BOOL bRelative) const {
ASSERT(m_bIsContentLayoutItem);
const CXFA_ContentLayoutItem* pThis =
static_cast<const CXFA_ContentLayoutItem*>(this);
CFX_PointF sPos = pThis->m_sPos;
CFX_SizeF sSize = pThis->m_sSize;
if (!bRelative) {
for (CXFA_LayoutItem* pLayoutItem = pThis->m_pParent; pLayoutItem;
pLayoutItem = pLayoutItem->m_pParent) {
if (CXFA_ContentLayoutItem* pContent =
pLayoutItem->AsContentLayoutItem()) {
sPos += pContent->m_sPos;
if (CXFA_Node* pMarginNode =
pLayoutItem->m_pFormNode->GetFirstChildByClass(
XFA_Element::Margin)) {
sPos += CFX_PointF(pMarginNode->GetMeasure(XFA_ATTRIBUTE_LeftInset)
.ToUnit(XFA_UNIT_Pt),
pMarginNode->GetMeasure(XFA_ATTRIBUTE_TopInset)
.ToUnit(XFA_UNIT_Pt));
}
} else {
if (pLayoutItem->m_pFormNode->GetElementType() ==
XFA_Element::ContentArea) {
sPos +=
CFX_PointF(pLayoutItem->m_pFormNode->GetMeasure(XFA_ATTRIBUTE_X)
.ToUnit(XFA_UNIT_Pt),
pLayoutItem->m_pFormNode->GetMeasure(XFA_ATTRIBUTE_Y)
.ToUnit(XFA_UNIT_Pt));
break;
} else if (pLayoutItem->m_pFormNode->GetElementType() ==
XFA_Element::PageArea) {
break;
}
}
}
}
rtLayout.Set(sPos.x, sPos.y, sSize.x, sSize.y);
}
CXFA_LayoutItem* CXFA_LayoutItem::GetParent() const {
return m_pParent;
}
const CXFA_LayoutItem* CXFA_LayoutItem::GetFirst() const {
ASSERT(m_bIsContentLayoutItem);
const CXFA_ContentLayoutItem* pCurNode =
static_cast<const CXFA_ContentLayoutItem*>(this);
while (pCurNode->m_pPrev) {
pCurNode = pCurNode->m_pPrev;
}
return pCurNode;
}
CXFA_LayoutItem* CXFA_LayoutItem::GetFirst() {
ASSERT(m_bIsContentLayoutItem);
CXFA_ContentLayoutItem* pCurNode = static_cast<CXFA_ContentLayoutItem*>(this);
while (pCurNode->m_pPrev) {
pCurNode = pCurNode->m_pPrev;
}
return pCurNode;
}
CXFA_LayoutItem* CXFA_LayoutItem::GetLast() {
ASSERT(m_bIsContentLayoutItem);
CXFA_ContentLayoutItem* pCurNode = static_cast<CXFA_ContentLayoutItem*>(this);
while (pCurNode->m_pNext) {
pCurNode = pCurNode->m_pNext;
}
return pCurNode;
}
const CXFA_LayoutItem* CXFA_LayoutItem::GetLast() const {
ASSERT(m_bIsContentLayoutItem);
const CXFA_ContentLayoutItem* pCurNode =
static_cast<const CXFA_ContentLayoutItem*>(this);
while (pCurNode->m_pNext) {
pCurNode = pCurNode->m_pNext;
}
return pCurNode;
}
CXFA_LayoutItem* CXFA_LayoutItem::GetPrev() const {
ASSERT(m_bIsContentLayoutItem);
return static_cast<const CXFA_ContentLayoutItem*>(this)->m_pPrev;
}
CXFA_LayoutItem* CXFA_LayoutItem::GetNext() const {
ASSERT(m_bIsContentLayoutItem);
return static_cast<const CXFA_ContentLayoutItem*>(this)->m_pNext;
}
int32_t CXFA_LayoutItem::GetIndex() const {
ASSERT(m_bIsContentLayoutItem);
int32_t iIndex = 0;
const CXFA_ContentLayoutItem* pCurNode =
static_cast<const CXFA_ContentLayoutItem*>(this);
while (pCurNode->m_pPrev) {
pCurNode = pCurNode->m_pPrev;
++iIndex;
}
return iIndex;
}
int32_t CXFA_LayoutItem::GetCount() const {
ASSERT(m_bIsContentLayoutItem);
int32_t iCount = GetIndex() + 1;
const CXFA_ContentLayoutItem* pCurNode =
static_cast<const CXFA_ContentLayoutItem*>(this);
while (pCurNode->m_pNext) {
pCurNode = pCurNode->m_pNext;
iCount++;
}
return iCount;
}
void CXFA_LayoutItem::AddChild(CXFA_LayoutItem* pChildItem) {
if (pChildItem->m_pParent) {
pChildItem->m_pParent->RemoveChild(pChildItem);
}
pChildItem->m_pParent = this;
if (!m_pFirstChild) {
m_pFirstChild = pChildItem;
} else {
CXFA_LayoutItem* pExistingChildItem = m_pFirstChild;
while (pExistingChildItem->m_pNextSibling) {
pExistingChildItem = pExistingChildItem->m_pNextSibling;
}
pExistingChildItem->m_pNextSibling = pChildItem;
}
}
void CXFA_LayoutItem::AddHeadChild(CXFA_LayoutItem* pChildItem) {
if (pChildItem->m_pParent) {
pChildItem->m_pParent->RemoveChild(pChildItem);
}
pChildItem->m_pParent = this;
if (!m_pFirstChild) {
m_pFirstChild = pChildItem;
} else {
CXFA_LayoutItem* pExistingChildItem = m_pFirstChild;
m_pFirstChild = pChildItem;
m_pFirstChild->m_pNextSibling = pExistingChildItem;
}
}
void CXFA_LayoutItem::InsertChild(CXFA_LayoutItem* pBeforeItem,
CXFA_LayoutItem* pChildItem) {
if (pBeforeItem->m_pParent != this) {
return;
}
if (pChildItem->m_pParent) {
pChildItem->m_pParent = nullptr;
}
pChildItem->m_pParent = this;
CXFA_LayoutItem* pExistingChildItem = pBeforeItem->m_pNextSibling;
pBeforeItem->m_pNextSibling = pChildItem;
pChildItem->m_pNextSibling = pExistingChildItem;
}
void CXFA_LayoutItem::RemoveChild(CXFA_LayoutItem* pChildItem) {
if (pChildItem->m_pParent != this) {
return;
}
if (m_pFirstChild == pChildItem) {
m_pFirstChild = pChildItem->m_pNextSibling;
} else {
CXFA_LayoutItem* pExistingChildItem = m_pFirstChild;
while (pExistingChildItem &&
pExistingChildItem->m_pNextSibling != pChildItem) {
pExistingChildItem = pExistingChildItem->m_pNextSibling;
}
if (pExistingChildItem) {
pExistingChildItem->m_pNextSibling = pChildItem->m_pNextSibling;
}
}
pChildItem->m_pNextSibling = nullptr;
pChildItem->m_pParent = nullptr;
}
CXFA_ContentLayoutItem* CXFA_ItemLayoutProcessor::ExtractLayoutItem() {
CXFA_ContentLayoutItem* pLayoutItem = m_pLayoutItem;
if (pLayoutItem) {
m_pLayoutItem =
static_cast<CXFA_ContentLayoutItem*>(pLayoutItem->m_pNextSibling);
pLayoutItem->m_pNextSibling = nullptr;
}
if (m_nCurChildNodeStage != XFA_ItemLayoutProcessorStages_Done ||
!ToContentLayoutItem(m_pOldLayoutItem))
return pLayoutItem;
if (m_pOldLayoutItem->m_pPrev)
m_pOldLayoutItem->m_pPrev->m_pNext = nullptr;
CXFA_FFNotify* pNotify =
m_pOldLayoutItem->m_pFormNode->GetDocument()->GetParser()->GetNotify();
CXFA_LayoutProcessor* pDocLayout =
m_pOldLayoutItem->m_pFormNode->GetDocument()->GetDocLayout();
CXFA_ContentLayoutItem* pOldLayoutItem = m_pOldLayoutItem;
while (pOldLayoutItem) {
CXFA_ContentLayoutItem* pNextOldLayoutItem = pOldLayoutItem->m_pNext;
pNotify->OnLayoutItemRemoving(pDocLayout, pOldLayoutItem);
if (pOldLayoutItem->m_pParent)
pOldLayoutItem->m_pParent->RemoveChild(pOldLayoutItem);
delete pOldLayoutItem;
pOldLayoutItem = pNextOldLayoutItem;
}
m_pOldLayoutItem = nullptr;
return pLayoutItem;
}
static FX_BOOL XFA_ItemLayoutProcessor_FindBreakNode(
CXFA_Node* pContainerNode,
CXFA_Node*& pCurActionNode,
XFA_ItemLayoutProcessorStages& nCurStage,
FX_BOOL bBreakBefore) {
FX_BOOL bFindRs = FALSE;
for (CXFA_Node* pBreakNode = pContainerNode; pBreakNode;
pBreakNode = pBreakNode->GetNodeItem(XFA_NODEITEM_NextSibling)) {
XFA_ATTRIBUTE eAttributeType = XFA_ATTRIBUTE_Before;
if (!bBreakBefore) {
eAttributeType = XFA_ATTRIBUTE_After;
}
switch (pBreakNode->GetElementType()) {
case XFA_Element::BreakBefore: {
if (bBreakBefore) {
pCurActionNode = pBreakNode;
nCurStage = XFA_ItemLayoutProcessorStages_BreakBefore;
bFindRs = TRUE;
}
} break;
case XFA_Element::BreakAfter: {
if (!bBreakBefore) {
pCurActionNode = pBreakNode;
nCurStage = XFA_ItemLayoutProcessorStages_BreakAfter;
bFindRs = TRUE;
}
} break;
case XFA_Element::Break:
if (pBreakNode->GetEnum(eAttributeType) != XFA_ATTRIBUTEENUM_Auto) {
pCurActionNode = pBreakNode;
nCurStage = XFA_ItemLayoutProcessorStages_BreakBefore;
if (!bBreakBefore) {
nCurStage = XFA_ItemLayoutProcessorStages_BreakAfter;
}
bFindRs = TRUE;
break;
}
default:
break;
}
if (bFindRs) {
break;
}
}
return bFindRs;
}
static void XFA_DeleteLayoutGeneratedNode(CXFA_Node* pGenerateNode) {
CXFA_FFNotify* pNotify =
pGenerateNode->GetDocument()->GetParser()->GetNotify();
CXFA_LayoutProcessor* pDocLayout =
pGenerateNode->GetDocument()->GetDocLayout();
CXFA_NodeIteratorTemplate<CXFA_Node, CXFA_TraverseStrategy_XFANode> sIterator(
pGenerateNode);
for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode;
pNode = sIterator.MoveToNext()) {
CXFA_ContentLayoutItem* pCurLayoutItem =
(CXFA_ContentLayoutItem*)pNode->GetUserData(XFA_LAYOUTITEMKEY);
CXFA_ContentLayoutItem* pNextLayoutItem = nullptr;
while (pCurLayoutItem) {
pNextLayoutItem = pCurLayoutItem->m_pNext;
pNotify->OnLayoutItemRemoving(pDocLayout, pCurLayoutItem);
delete pCurLayoutItem;
pCurLayoutItem = pNextLayoutItem;
}
}
pGenerateNode->GetNodeItem(XFA_NODEITEM_Parent)->RemoveChild(pGenerateNode);
}
void CXFA_ItemLayoutProcessor::XFA_ItemLayoutProcessor_GotoNextContainerNode(
CXFA_Node*& pCurActionNode,
XFA_ItemLayoutProcessorStages& nCurStage,
CXFA_Node* pParentContainer,
FX_BOOL bUsePageBreak) {
CXFA_Node* pEntireContainer = pParentContainer;
CXFA_Node* pChildContainer = XFA_LAYOUT_INVALIDNODE;
switch (nCurStage) {
case XFA_ItemLayoutProcessorStages_BreakBefore:
case XFA_ItemLayoutProcessorStages_BreakAfter: {
pChildContainer = pCurActionNode->GetNodeItem(XFA_NODEITEM_Parent);
} break;
case XFA_ItemLayoutProcessorStages_Keep:
case XFA_ItemLayoutProcessorStages_Container:
pChildContainer = pCurActionNode;
break;
default:
pChildContainer = XFA_LAYOUT_INVALIDNODE;
break;
}
switch (nCurStage) {
case XFA_ItemLayoutProcessorStages_Keep: {
CXFA_Node* pBreakAfterNode =
pChildContainer->GetNodeItem(XFA_NODEITEM_FirstChild);
if (!m_bKeepBreakFinish &&
XFA_ItemLayoutProcessor_FindBreakNode(pBreakAfterNode, pCurActionNode,
nCurStage, FALSE)) {
return;
}
goto CheckNextChildContainer;
}
case XFA_ItemLayoutProcessorStages_None: {
pCurActionNode = XFA_LAYOUT_INVALIDNODE;
case XFA_ItemLayoutProcessorStages_BookendLeader:
for (CXFA_Node* pBookendNode =
pCurActionNode == XFA_LAYOUT_INVALIDNODE
? pEntireContainer->GetNodeItem(XFA_NODEITEM_FirstChild)
: pCurActionNode->GetNodeItem(XFA_NODEITEM_NextSibling);
pBookendNode; pBookendNode = pBookendNode->GetNodeItem(
XFA_NODEITEM_NextSibling)) {
switch (pBookendNode->GetElementType()) {
case XFA_Element::Bookend:
case XFA_Element::Break:
pCurActionNode = pBookendNode;
nCurStage = XFA_ItemLayoutProcessorStages_BookendLeader;
return;
default:
break;
}
}
}
{
pCurActionNode = XFA_LAYOUT_INVALIDNODE;
case XFA_ItemLayoutProcessorStages_BreakBefore:
if (pCurActionNode != XFA_LAYOUT_INVALIDNODE) {
CXFA_Node* pBreakBeforeNode =
pCurActionNode->GetNodeItem(XFA_NODEITEM_NextSibling);
if (!m_bKeepBreakFinish &&
XFA_ItemLayoutProcessor_FindBreakNode(
pBreakBeforeNode, pCurActionNode, nCurStage, TRUE)) {
return;
}
if (m_bIsProcessKeep) {
if (ProcessKeepNodesForBreakBefore(pCurActionNode, nCurStage,
pChildContainer)) {
return;
}
goto CheckNextChildContainer;
}
pCurActionNode = pChildContainer;
nCurStage = XFA_ItemLayoutProcessorStages_Container;
return;
}
goto CheckNextChildContainer;
}
case XFA_ItemLayoutProcessorStages_Container: {
pCurActionNode = XFA_LAYOUT_INVALIDNODE;
case XFA_ItemLayoutProcessorStages_BreakAfter: {
if (pCurActionNode == XFA_LAYOUT_INVALIDNODE) {
CXFA_Node* pBreakAfterNode =
pChildContainer->GetNodeItem(XFA_NODEITEM_FirstChild);
if (!m_bKeepBreakFinish &&
XFA_ItemLayoutProcessor_FindBreakNode(
pBreakAfterNode, pCurActionNode, nCurStage, FALSE)) {
return;
}
} else {
CXFA_Node* pBreakAfterNode =
pCurActionNode->GetNodeItem(XFA_NODEITEM_NextSibling);
if (XFA_ItemLayoutProcessor_FindBreakNode(
pBreakAfterNode, pCurActionNode, nCurStage, FALSE)) {
return;
}
}
goto CheckNextChildContainer;
}
}
CheckNextChildContainer : {
CXFA_Node* pNextChildContainer =
pChildContainer == XFA_LAYOUT_INVALIDNODE
? pEntireContainer->GetNodeItem(XFA_NODEITEM_FirstChild,
XFA_ObjectType::ContainerNode)
: pChildContainer->GetNodeItem(XFA_NODEITEM_NextSibling,
XFA_ObjectType::ContainerNode);
while (pNextChildContainer &&
pNextChildContainer->IsLayoutGeneratedNode()) {
CXFA_Node* pSaveNode = pNextChildContainer;
pNextChildContainer = pNextChildContainer->GetNodeItem(
XFA_NODEITEM_NextSibling, XFA_ObjectType::ContainerNode);
if (pSaveNode->IsUnusedNode())
XFA_DeleteLayoutGeneratedNode(pSaveNode);
}
if (!pNextChildContainer) {
goto NoMoreChildContainer;
}
FX_BOOL bLastKeep = FALSE;
if (ProcessKeepNodesForCheckNext(pCurActionNode, nCurStage,
pNextChildContainer, bLastKeep)) {
return;
}
if (!m_bKeepBreakFinish && !bLastKeep &&
XFA_ItemLayoutProcessor_FindBreakNode(
pNextChildContainer->GetNodeItem(XFA_NODEITEM_FirstChild),
pCurActionNode, nCurStage, TRUE)) {
return;
}
pCurActionNode = pNextChildContainer;
if (m_bIsProcessKeep) {
nCurStage = XFA_ItemLayoutProcessorStages_Keep;
} else {
nCurStage = XFA_ItemLayoutProcessorStages_Container;
}
return;
}
NoMoreChildContainer : {
pCurActionNode = XFA_LAYOUT_INVALIDNODE;
case XFA_ItemLayoutProcessorStages_BookendTrailer:
for (CXFA_Node* pBookendNode =
pCurActionNode == XFA_LAYOUT_INVALIDNODE
? pEntireContainer->GetNodeItem(XFA_NODEITEM_FirstChild)
: pCurActionNode->GetNodeItem(XFA_NODEITEM_NextSibling);
pBookendNode; pBookendNode = pBookendNode->GetNodeItem(
XFA_NODEITEM_NextSibling)) {
switch (pBookendNode->GetElementType()) {
case XFA_Element::Bookend:
case XFA_Element::Break:
pCurActionNode = pBookendNode;
nCurStage = XFA_ItemLayoutProcessorStages_BookendTrailer;
return;
default:
break;
}
}
}
default:
pCurActionNode = nullptr;
nCurStage = XFA_ItemLayoutProcessorStages_Done;
}
}
FX_BOOL CXFA_ItemLayoutProcessor::ProcessKeepNodesForCheckNext(
CXFA_Node*& pCurActionNode,
XFA_ItemLayoutProcessorStages& nCurStage,
CXFA_Node*& pNextContainer,
FX_BOOL& bLastKeepNode) {
const bool bCanSplit = pNextContainer->GetIntact() == XFA_ATTRIBUTEENUM_None;
FX_BOOL bNextKeep = FALSE;
if (XFA_ExistContainerKeep(pNextContainer, FALSE)) {
bNextKeep = TRUE;
}
if (bNextKeep && !bCanSplit) {
if (!m_bIsProcessKeep && !m_bKeepBreakFinish) {
m_pKeepHeadNode = pNextContainer;
m_bIsProcessKeep = TRUE;
}
} else {
if (m_bIsProcessKeep && m_pKeepHeadNode) {
m_pKeepTailNode = pNextContainer;
if (!m_bKeepBreakFinish &&
XFA_ItemLayoutProcessor_FindBreakNode(
pNextContainer->GetNodeItem(XFA_NODEITEM_FirstChild),
pCurActionNode, nCurStage, TRUE)) {
return TRUE;
} else {
pNextContainer = m_pKeepHeadNode;
m_bKeepBreakFinish = TRUE;
m_pKeepHeadNode = nullptr;
m_pKeepTailNode = nullptr;
m_bIsProcessKeep = FALSE;
}
} else {
if (m_bKeepBreakFinish) {
bLastKeepNode = TRUE;
}
m_bKeepBreakFinish = FALSE;
}
}
return FALSE;
}
FX_BOOL CXFA_ItemLayoutProcessor::ProcessKeepNodesForBreakBefore(
CXFA_Node*& pCurActionNode,
XFA_ItemLayoutProcessorStages& nCurStage,
CXFA_Node* pContainerNode) {
if (m_pKeepTailNode == pContainerNode) {
pCurActionNode = m_pKeepHeadNode;
m_bKeepBreakFinish = TRUE;
m_pKeepHeadNode = nullptr;
m_pKeepTailNode = nullptr;
m_bIsProcessKeep = FALSE;
nCurStage = XFA_ItemLayoutProcessorStages_Container;
return TRUE;
}
CXFA_Node* pBreakAfterNode =
pContainerNode->GetNodeItem(XFA_NODEITEM_FirstChild);
if (XFA_ItemLayoutProcessor_FindBreakNode(pBreakAfterNode, pCurActionNode,
nCurStage, FALSE)) {
return TRUE;
}
return FALSE;
}
FX_BOOL XFA_ItemLayoutProcessor_IsTakingSpace(CXFA_Node* pNode) {
XFA_ATTRIBUTEENUM ePresence = pNode->GetEnum(XFA_ATTRIBUTE_Presence);
return ePresence == XFA_ATTRIBUTEENUM_Visible ||
ePresence == XFA_ATTRIBUTEENUM_Invisible;
}
static inline void XFA_ItemLayoutProcessor_CalculateContainerSpecfiedSize(
CXFA_Node* pFormNode,
FX_FLOAT& fContainerWidth,
FX_FLOAT& fContainerHeight,
FX_BOOL& bContainerWidthAutoSize,
FX_BOOL& bContainerHeightAutoSize) {
fContainerWidth = 0;
fContainerHeight = 0;
bContainerWidthAutoSize = TRUE;
bContainerHeightAutoSize = TRUE;
XFA_Element eType = pFormNode->GetElementType();
CXFA_Measurement mTmpValue;
if (bContainerWidthAutoSize &&
(eType == XFA_Element::Subform || eType == XFA_Element::ExclGroup) &&
pFormNode->TryMeasure(XFA_ATTRIBUTE_W, mTmpValue, FALSE) &&
mTmpValue.GetValue() > XFA_LAYOUT_FLOAT_PERCISION) {
fContainerWidth = mTmpValue.ToUnit(XFA_UNIT_Pt);
bContainerWidthAutoSize = FALSE;
}
if (bContainerHeightAutoSize &&
(eType == XFA_Element::Subform || eType == XFA_Element::ExclGroup) &&
pFormNode->TryMeasure(XFA_ATTRIBUTE_H, mTmpValue, FALSE) &&
mTmpValue.GetValue() > XFA_LAYOUT_FLOAT_PERCISION) {
fContainerHeight = mTmpValue.ToUnit(XFA_UNIT_Pt);
bContainerHeightAutoSize = FALSE;
}
if (bContainerWidthAutoSize && eType == XFA_Element::Subform &&
pFormNode->TryMeasure(XFA_ATTRIBUTE_MaxW, mTmpValue, FALSE) &&
mTmpValue.GetValue() > XFA_LAYOUT_FLOAT_PERCISION) {
fContainerWidth = mTmpValue.ToUnit(XFA_UNIT_Pt);
bContainerWidthAutoSize = FALSE;
}
if (bContainerHeightAutoSize && eType == XFA_Element::Subform &&
pFormNode->TryMeasure(XFA_ATTRIBUTE_MaxH, mTmpValue, FALSE) &&
mTmpValue.GetValue() > XFA_LAYOUT_FLOAT_PERCISION) {
fContainerHeight = mTmpValue.ToUnit(XFA_UNIT_Pt);
bContainerHeightAutoSize = FALSE;
}
}
static inline void
XFA_ItemLayoutProcessor_CalculateContainerComponentSizeFromContentSize(
CXFA_Node* pFormNode,
FX_BOOL bContainerWidthAutoSize,
FX_FLOAT fContentCalculatedWidth,
FX_FLOAT& fContainerWidth,
FX_BOOL bContainerHeightAutoSize,
FX_FLOAT fContentCalculatedHeight,
FX_FLOAT& fContainerHeight) {
CXFA_Node* pMarginNode = pFormNode->GetFirstChildByClass(XFA_Element::Margin);
CXFA_Measurement mTmpValue;
if (bContainerWidthAutoSize) {
fContainerWidth = fContentCalculatedWidth;
if (pMarginNode) {
if (pMarginNode->TryMeasure(XFA_ATTRIBUTE_LeftInset, mTmpValue, FALSE)) {
fContainerWidth += mTmpValue.ToUnit(XFA_UNIT_Pt);
}
if (pMarginNode->TryMeasure(XFA_ATTRIBUTE_RightInset, mTmpValue, FALSE)) {
fContainerWidth += mTmpValue.ToUnit(XFA_UNIT_Pt);
}
}
}
if (bContainerHeightAutoSize) {
fContainerHeight = fContentCalculatedHeight;
if (pMarginNode) {
if (pMarginNode->TryMeasure(XFA_ATTRIBUTE_TopInset, mTmpValue, FALSE)) {
fContainerHeight += mTmpValue.ToUnit(XFA_UNIT_Pt);
}
if (pMarginNode->TryMeasure(XFA_ATTRIBUTE_BottomInset, mTmpValue,
FALSE)) {
fContainerHeight += mTmpValue.ToUnit(XFA_UNIT_Pt);
}
}
}
}
void CXFA_ItemLayoutProcessor::CalculatePositionedContainerPos(
CXFA_Node* pNode,
FX_FLOAT fWidth,
FX_FLOAT fHeight,
FX_FLOAT& fAbsoluteX,
FX_FLOAT& fAbsoluteY) {
XFA_ATTRIBUTEENUM eAnchorType = pNode->GetEnum(XFA_ATTRIBUTE_AnchorType);
int32_t nAnchorType = 0;
switch (eAnchorType) {
case XFA_ATTRIBUTEENUM_TopLeft:
nAnchorType = 0;
break;
case XFA_ATTRIBUTEENUM_TopCenter:
nAnchorType = 1;
break;
case XFA_ATTRIBUTEENUM_TopRight:
nAnchorType = 2;
break;
case XFA_ATTRIBUTEENUM_MiddleLeft:
nAnchorType = 3;
break;
case XFA_ATTRIBUTEENUM_MiddleCenter:
nAnchorType = 4;
break;
case XFA_ATTRIBUTEENUM_MiddleRight:
nAnchorType = 5;
break;
case XFA_ATTRIBUTEENUM_BottomLeft:
nAnchorType = 6;
break;
case XFA_ATTRIBUTEENUM_BottomCenter:
nAnchorType = 7;
break;
case XFA_ATTRIBUTEENUM_BottomRight:
nAnchorType = 8;
break;
default:
break;
}
static const uint8_t nNextPos[4][9] = {{0, 1, 2, 3, 4, 5, 6, 7, 8},
{6, 3, 0, 7, 4, 1, 8, 5, 2},
{8, 7, 6, 5, 4, 3, 2, 1, 0},
{2, 5, 8, 1, 4, 7, 0, 3, 6}};
FX_FLOAT fAnchorX = pNode->GetMeasure(XFA_ATTRIBUTE_X).ToUnit(XFA_UNIT_Pt);
FX_FLOAT fAnchorY = pNode->GetMeasure(XFA_ATTRIBUTE_Y).ToUnit(XFA_UNIT_Pt);
int32_t nRotate =
FXSYS_round(pNode->GetMeasure(XFA_ATTRIBUTE_Rotate).GetValue());
nRotate = XFA_MapRotation(nRotate) / 90;
int32_t nAbsoluteAnchorType = nNextPos[nRotate][nAnchorType];
fAbsoluteX = fAnchorX;
fAbsoluteY = fAnchorY;
switch (nAbsoluteAnchorType / 3) {
case 1:
fAbsoluteY -= fHeight / 2;
break;
case 2:
fAbsoluteY -= fHeight;
break;
default:
break;
}
switch (nAbsoluteAnchorType % 3) {
case 1:
fAbsoluteX -= fWidth / 2;
break;
case 2:
fAbsoluteX -= fWidth;
break;
default:
break;
}
}
FX_BOOL CXFA_ItemLayoutProcessor::IncrementRelayoutNode(
CXFA_LayoutProcessor* pLayoutProcessor,
CXFA_Node* pNode,
CXFA_Node* pParentNode) {
return FALSE;
}
void CXFA_ItemLayoutProcessor::DoLayoutPageArea(
CXFA_ContainerLayoutItem* pPageAreaLayoutItem) {
CXFA_Node* pFormNode = pPageAreaLayoutItem->m_pFormNode;
CXFA_Node* pCurChildNode = XFA_LAYOUT_INVALIDNODE;
XFA_ItemLayoutProcessorStages nCurChildNodeStage =
XFA_ItemLayoutProcessorStages_None;
CXFA_LayoutItem* pBeforeItem = nullptr;
for (XFA_ItemLayoutProcessor_GotoNextContainerNode(
pCurChildNode, nCurChildNodeStage, pFormNode, FALSE);
pCurChildNode; XFA_ItemLayoutProcessor_GotoNextContainerNode(
pCurChildNode, nCurChildNodeStage, pFormNode, FALSE)) {
if (nCurChildNodeStage != XFA_ItemLayoutProcessorStages_Container) {
continue;
}
if (pCurChildNode->GetElementType() == XFA_Element::Variables) {
continue;
}
CXFA_ItemLayoutProcessor* pProcessor =
new CXFA_ItemLayoutProcessor(pCurChildNode, nullptr);
pProcessor->DoLayout(FALSE, XFA_LAYOUT_FLOAT_MAX);
if (!pProcessor->HasLayoutItem()) {
delete pProcessor;
continue;
}
FX_FLOAT fWidth, fHeight;
pProcessor->GetCurrentComponentSize(fWidth, fHeight);
FX_FLOAT fAbsoluteX = 0, fAbsoluteY = 0;
CalculatePositionedContainerPos(pCurChildNode, fWidth, fHeight, fAbsoluteX,
fAbsoluteY);
pProcessor->SetCurrentComponentPos(fAbsoluteX, fAbsoluteY);
CXFA_LayoutItem* pProcessItem = pProcessor->ExtractLayoutItem();
if (!pBeforeItem) {
pPageAreaLayoutItem->AddHeadChild(pProcessItem);
} else {
pPageAreaLayoutItem->InsertChild(pBeforeItem, pProcessItem);
}
pBeforeItem = pProcessItem;
delete pProcessor;
}
pBeforeItem = nullptr;
CXFA_LayoutItem* pLayoutItem = pPageAreaLayoutItem->m_pFirstChild;
while (pLayoutItem) {
if (!pLayoutItem->IsContentLayoutItem() ||
pLayoutItem->m_pFormNode->GetElementType() != XFA_Element::Draw) {
pLayoutItem = pLayoutItem->m_pNextSibling;
continue;
}
if (pLayoutItem->m_pFormNode->GetElementType() == XFA_Element::Draw) {
CXFA_LayoutItem* pNextLayoutItem = pLayoutItem->m_pNextSibling;
pPageAreaLayoutItem->RemoveChild(pLayoutItem);
if (!pBeforeItem) {
pPageAreaLayoutItem->AddHeadChild(pLayoutItem);
} else {
pPageAreaLayoutItem->InsertChild(pBeforeItem, pLayoutItem);
}
pBeforeItem = pLayoutItem;
pLayoutItem = pNextLayoutItem;
}
}
}
void CXFA_ItemLayoutProcessor::DoLayoutPositionedContainer(
CXFA_LayoutContext* pContext) {
if (m_pLayoutItem)
return;
m_pLayoutItem = CreateContentLayoutItem(m_pFormNode);
FX_BOOL bIgnoreXY = (m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout) !=
XFA_ATTRIBUTEENUM_Position);
FX_FLOAT fContainerWidth = 0, fContainerHeight = 0;
FX_BOOL bContainerWidthAutoSize = TRUE, bContainerHeightAutoSize = TRUE;
XFA_ItemLayoutProcessor_CalculateContainerSpecfiedSize(
m_pFormNode, fContainerWidth, fContainerHeight, bContainerWidthAutoSize,
bContainerHeightAutoSize);
FX_FLOAT fContentCalculatedWidth = 0, fContentCalculatedHeight = 0;
FX_FLOAT fHiddenContentCalculatedWidth = 0,
fHiddenContentCalculatedHeight = 0;
if (m_pCurChildNode == XFA_LAYOUT_INVALIDNODE) {
XFA_ItemLayoutProcessor_GotoNextContainerNode(
m_pCurChildNode, m_nCurChildNodeStage, m_pFormNode, FALSE);
}
int32_t iColIndex = 0;
for (; m_pCurChildNode; XFA_ItemLayoutProcessor_GotoNextContainerNode(
m_pCurChildNode, m_nCurChildNodeStage, m_pFormNode, FALSE)) {
if (m_nCurChildNodeStage != XFA_ItemLayoutProcessorStages_Container) {
continue;
}
if (m_pCurChildNode->GetElementType() == XFA_Element::Variables) {
continue;
}
CXFA_ItemLayoutProcessor* pProcessor =
new CXFA_ItemLayoutProcessor(m_pCurChildNode, m_pPageMgr);
if (pContext && pContext->m_prgSpecifiedColumnWidths) {
int32_t iColSpan = m_pCurChildNode->GetInteger(XFA_ATTRIBUTE_ColSpan);
if (iColSpan <=
pContext->m_prgSpecifiedColumnWidths->GetSize() - iColIndex) {
pContext->m_fCurColumnWidth = 0;
pContext->m_bCurColumnWidthAvaiable = TRUE;
if (iColSpan == -1)
iColSpan = pContext->m_prgSpecifiedColumnWidths->GetSize();
for (int32_t i = 0; iColIndex + i < iColSpan; ++i) {
pContext->m_fCurColumnWidth +=
pContext->m_prgSpecifiedColumnWidths->GetAt(iColIndex + i);
}
if (pContext->m_fCurColumnWidth == 0)
pContext->m_bCurColumnWidthAvaiable = FALSE;
iColIndex += iColSpan >= 0 ? iColSpan : 0;
}
}
pProcessor->DoLayout(FALSE, XFA_LAYOUT_FLOAT_MAX, XFA_LAYOUT_FLOAT_MAX,
pContext);
if (!pProcessor->HasLayoutItem()) {
delete pProcessor;
continue;
}
FX_FLOAT fWidth, fHeight;
pProcessor->GetCurrentComponentSize(fWidth, fHeight);
FX_BOOL bChangeParentSize = FALSE;
if (XFA_ItemLayoutProcessor_IsTakingSpace(m_pCurChildNode)) {
bChangeParentSize = TRUE;
}
FX_FLOAT fAbsoluteX = 0, fAbsoluteY = 0;
if (!bIgnoreXY) {
CalculatePositionedContainerPos(m_pCurChildNode, fWidth, fHeight,
fAbsoluteX, fAbsoluteY);
}
pProcessor->SetCurrentComponentPos(fAbsoluteX, fAbsoluteY);
if (bContainerWidthAutoSize) {
FX_FLOAT fChildSuppliedWidth = fAbsoluteX + fWidth;
if (bChangeParentSize) {
if (fContentCalculatedWidth < fChildSuppliedWidth) {
fContentCalculatedWidth = fChildSuppliedWidth;
}
} else {
if (fHiddenContentCalculatedWidth < fChildSuppliedWidth &&
m_pCurChildNode->GetElementType() != XFA_Element::Subform) {
fHiddenContentCalculatedWidth = fChildSuppliedWidth;
}
}
}
if (bContainerHeightAutoSize) {
FX_FLOAT fChildSuppliedHeight = fAbsoluteY + fHeight;
if (bChangeParentSize) {
if (fContentCalculatedHeight < fChildSuppliedHeight) {
fContentCalculatedHeight = fChildSuppliedHeight;
}
} else {
if (fHiddenContentCalculatedHeight < fChildSuppliedHeight &&
m_pCurChildNode->GetElementType() != XFA_Element::Subform) {
fHiddenContentCalculatedHeight = fChildSuppliedHeight;
}
}
}
m_pLayoutItem->AddChild(pProcessor->ExtractLayoutItem());
delete pProcessor;
}
XFA_VERSION eVersion = m_pFormNode->GetDocument()->GetCurVersionMode();
if (fContentCalculatedWidth == 0 && eVersion < XFA_VERSION_207) {
fContentCalculatedWidth = fHiddenContentCalculatedWidth;
}
if (fContentCalculatedHeight == 0 && eVersion < XFA_VERSION_207) {
fContentCalculatedHeight = fHiddenContentCalculatedHeight;
}
XFA_ItemLayoutProcessor_CalculateContainerComponentSizeFromContentSize(
m_pFormNode, bContainerWidthAutoSize, fContentCalculatedWidth,
fContainerWidth, bContainerHeightAutoSize, fContentCalculatedHeight,
fContainerHeight);
SetCurrentComponentSize(fContainerWidth, fContainerHeight);
}
static inline void XFA_ItemLayoutProcessor_UpdateWidgetSize(
CXFA_ContentLayoutItem* pLayoutItem,
FX_FLOAT& fWidth,
FX_FLOAT& fHeight) {
CXFA_Node* pNode = pLayoutItem->m_pFormNode;
ASSERT(pNode);
switch (pNode->GetElementType()) {
case XFA_Element::Subform:
case XFA_Element::Area:
case XFA_Element::ExclGroup:
case XFA_Element::SubformSet: {
if (fWidth < -XFA_LAYOUT_FLOAT_PERCISION) {
fWidth = pLayoutItem->m_sSize.x;
}
if (fHeight < -XFA_LAYOUT_FLOAT_PERCISION) {
fHeight = pLayoutItem->m_sSize.y;
}
break;
}
case XFA_Element::Draw:
case XFA_Element::Field: {
pNode->GetDocument()->GetParser()->GetNotify()->StartFieldDrawLayout(
pNode, fWidth, fHeight);
break;
}
default:
ASSERT(FALSE);
}
}
static inline void XFA_ItemLayoutProcessor_RelocateTableRowCells(
CXFA_ContentLayoutItem* pLayoutRow,
const CFX_ArrayTemplate<FX_FLOAT>& rgSpecifiedColumnWidths,
XFA_ATTRIBUTEENUM eLayout) {
FX_FLOAT fContainerWidth = 0, fContainerHeight = 0;
FX_BOOL bContainerWidthAutoSize = TRUE, bContainerHeightAutoSize = TRUE;
XFA_ItemLayoutProcessor_CalculateContainerSpecfiedSize(
pLayoutRow->m_pFormNode, fContainerWidth, fContainerHeight,
bContainerWidthAutoSize, bContainerHeightAutoSize);
CXFA_Node* pMarginNode =
pLayoutRow->m_pFormNode->GetFirstChildByClass(XFA_Element::Margin);
FX_FLOAT fLeftInset = 0, fTopInset = 0, fRightInset = 0, fBottomInset = 0;
if (pMarginNode) {
fLeftInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_LeftInset).ToUnit(XFA_UNIT_Pt);
fTopInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_TopInset).ToUnit(XFA_UNIT_Pt);
fRightInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_RightInset).ToUnit(XFA_UNIT_Pt);
fBottomInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_BottomInset).ToUnit(XFA_UNIT_Pt);
}
FX_FLOAT fContentWidthLimit =
bContainerWidthAutoSize ? XFA_LAYOUT_FLOAT_MAX
: fContainerWidth - fLeftInset - fRightInset;
FX_FLOAT fContentCurrentHeight =
pLayoutRow->m_sSize.y - fTopInset - fBottomInset;
FX_FLOAT fContentCalculatedWidth = 0, fContentCalculatedHeight = 0;
FX_FLOAT fCurrentColX = 0;
int32_t nCurrentColIdx = 0;
FX_BOOL bMetWholeRowCell = FALSE;
for (CXFA_ContentLayoutItem* pLayoutChild =
(CXFA_ContentLayoutItem*)pLayoutRow->m_pFirstChild;
pLayoutChild;
pLayoutChild = (CXFA_ContentLayoutItem*)pLayoutChild->m_pNextSibling) {
int32_t nOriginalColSpan =
pLayoutChild->m_pFormNode->GetInteger(XFA_ATTRIBUTE_ColSpan);
int32_t nColSpan = nOriginalColSpan;
FX_FLOAT fColSpanWidth = 0;
if (nColSpan == -1 ||
nCurrentColIdx + nColSpan > rgSpecifiedColumnWidths.GetSize()) {
nColSpan = rgSpecifiedColumnWidths.GetSize() - nCurrentColIdx;
}
for (int32_t i = 0; i < nColSpan; i++) {
fColSpanWidth += rgSpecifiedColumnWidths[nCurrentColIdx + i];
}
if (nColSpan != nOriginalColSpan) {
fColSpanWidth = bMetWholeRowCell ? 0 : std::max(fColSpanWidth,
pLayoutChild->m_sSize.y);
}
if (nOriginalColSpan == -1) {
bMetWholeRowCell = TRUE;
}
pLayoutChild->m_sPos = CFX_PointF(fCurrentColX, 0);
pLayoutChild->m_sSize.x = fColSpanWidth;
if (XFA_ItemLayoutProcessor_IsTakingSpace(pLayoutChild->m_pFormNode)) {
fCurrentColX += fColSpanWidth;
nCurrentColIdx += nColSpan;
FX_FLOAT fNewHeight =
bContainerHeightAutoSize ? -1 : fContentCurrentHeight;
XFA_ItemLayoutProcessor_UpdateWidgetSize(pLayoutChild, fColSpanWidth,
fNewHeight);
pLayoutChild->m_sSize.y = fNewHeight;
if (bContainerHeightAutoSize) {
FX_FLOAT fChildSuppliedHeight = pLayoutChild->m_sSize.y;
if (fContentCalculatedHeight < fChildSuppliedHeight) {
fContentCalculatedHeight = fChildSuppliedHeight;
}
}
}
}
if (bContainerHeightAutoSize) {
for (CXFA_ContentLayoutItem* pLayoutChild =
(CXFA_ContentLayoutItem*)pLayoutRow->m_pFirstChild;
pLayoutChild;
pLayoutChild = (CXFA_ContentLayoutItem*)pLayoutChild->m_pNextSibling) {
XFA_ItemLayoutProcessor_UpdateWidgetSize(
pLayoutChild, pLayoutChild->m_sSize.x, fContentCalculatedHeight);
FX_FLOAT fOldChildHeight = pLayoutChild->m_sSize.y;
pLayoutChild->m_sSize.y = fContentCalculatedHeight;
CXFA_Node* pParaNode =
pLayoutChild->m_pFormNode->GetFirstChildByClass(XFA_Element::Para);
if (pParaNode && pLayoutChild->m_pFirstChild) {
FX_FLOAT fOffHeight = fContentCalculatedHeight - fOldChildHeight;
XFA_ATTRIBUTEENUM eVType = pParaNode->GetEnum(XFA_ATTRIBUTE_VAlign);
switch (eVType) {
case XFA_ATTRIBUTEENUM_Middle:
fOffHeight = fOffHeight / 2;
break;
case XFA_ATTRIBUTEENUM_Bottom:
break;
case XFA_ATTRIBUTEENUM_Top:
default:
fOffHeight = 0;
break;
}
if (fOffHeight > 0) {
for (CXFA_ContentLayoutItem* pInnerLayoutChild =
(CXFA_ContentLayoutItem*)pLayoutChild->m_pFirstChild;
pInnerLayoutChild;
pInnerLayoutChild =
(CXFA_ContentLayoutItem*)pInnerLayoutChild->m_pNextSibling) {
pInnerLayoutChild->m_sPos.y += fOffHeight;
}
}
}
}
}
if (bContainerWidthAutoSize) {
FX_FLOAT fChildSuppliedWidth = fCurrentColX;
if (fContentWidthLimit < XFA_LAYOUT_FLOAT_MAX &&
fContentWidthLimit > fChildSuppliedWidth) {
fChildSuppliedWidth = fContentWidthLimit;
}
if (fContentCalculatedWidth < fChildSuppliedWidth) {
fContentCalculatedWidth = fChildSuppliedWidth;
}
} else {
fContentCalculatedWidth = fContainerWidth - fLeftInset - fRightInset;
}
if (pLayoutRow->m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout) ==
XFA_ATTRIBUTEENUM_Rl_row) {
for (CXFA_ContentLayoutItem* pLayoutChild =
(CXFA_ContentLayoutItem*)pLayoutRow->m_pFirstChild;
pLayoutChild;
pLayoutChild = (CXFA_ContentLayoutItem*)pLayoutChild->m_pNextSibling) {
pLayoutChild->m_sPos.x = fContentCalculatedWidth -
pLayoutChild->m_sPos.x - pLayoutChild->m_sSize.x;
}
}
XFA_ItemLayoutProcessor_CalculateContainerComponentSizeFromContentSize(
pLayoutRow->m_pFormNode, bContainerWidthAutoSize, fContentCalculatedWidth,
fContainerWidth, bContainerHeightAutoSize, fContentCalculatedHeight,
fContainerHeight);
pLayoutRow->m_sSize = CFX_SizeF(fContainerWidth, fContainerHeight);
}
void CXFA_ItemLayoutProcessor::DoLayoutTableContainer(CXFA_Node* pLayoutNode) {
if (m_pLayoutItem)
return;
if (!pLayoutNode) {
pLayoutNode = m_pFormNode;
}
ASSERT(m_pCurChildNode == XFA_LAYOUT_INVALIDNODE);
m_pLayoutItem = CreateContentLayoutItem(m_pFormNode);
FX_FLOAT fContainerWidth = 0, fContainerHeight = 0;
FX_BOOL bContainerWidthAutoSize = TRUE, bContainerHeightAutoSize = TRUE;
XFA_ItemLayoutProcessor_CalculateContainerSpecfiedSize(
m_pFormNode, fContainerWidth, fContainerHeight, bContainerWidthAutoSize,
bContainerHeightAutoSize);
FX_FLOAT fContentCalculatedWidth = 0, fContentCalculatedHeight = 0;
CXFA_Node* pMarginNode =
m_pFormNode->GetFirstChildByClass(XFA_Element::Margin);
FX_FLOAT fLeftInset = 0;
FX_FLOAT fRightInset = 0;
if (pMarginNode) {
fLeftInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_LeftInset).ToUnit(XFA_UNIT_Pt);
fRightInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_RightInset).ToUnit(XFA_UNIT_Pt);
}
FX_FLOAT fContentWidthLimit =
bContainerWidthAutoSize ? XFA_LAYOUT_FLOAT_MAX
: fContainerWidth - fLeftInset - fRightInset;
CFX_WideStringC wsColumnWidths;
if (pLayoutNode->TryCData(XFA_ATTRIBUTE_ColumnWidths, wsColumnWidths)) {
CFX_WideStringArray widths;
if (SeparateStringW(wsColumnWidths.c_str(), wsColumnWidths.GetLength(),
L' ', widths) > 0) {
int32_t iCols = widths.GetSize();
CFX_WideString wsWidth;
for (int32_t i = 0; i < iCols; i++) {
wsWidth = widths[i];
wsWidth.TrimLeft(L' ');
if (!wsWidth.IsEmpty()) {
CXFA_Measurement measure(wsWidth.AsStringC());
m_rgSpecifiedColumnWidths.Add(measure.ToUnit(XFA_UNIT_Pt));
}
}
}
}
int32_t iSpecifiedColumnCount = m_rgSpecifiedColumnWidths.GetSize();
CXFA_LayoutContext layoutContext;
layoutContext.m_prgSpecifiedColumnWidths = &m_rgSpecifiedColumnWidths;
CXFA_LayoutContext* pLayoutContext =
iSpecifiedColumnCount > 0 ? &layoutContext : nullptr;
if (m_pCurChildNode == XFA_LAYOUT_INVALIDNODE) {
XFA_ItemLayoutProcessor_GotoNextContainerNode(
m_pCurChildNode, m_nCurChildNodeStage, m_pFormNode, FALSE);
}
for (; m_pCurChildNode; XFA_ItemLayoutProcessor_GotoNextContainerNode(
m_pCurChildNode, m_nCurChildNodeStage, m_pFormNode, FALSE)) {
layoutContext.m_bCurColumnWidthAvaiable = FALSE;
layoutContext.m_fCurColumnWidth = 0;
if (m_nCurChildNodeStage != XFA_ItemLayoutProcessorStages_Container) {
continue;
}
CXFA_ItemLayoutProcessor* pProcessor =
new CXFA_ItemLayoutProcessor(m_pCurChildNode, m_pPageMgr);
pProcessor->DoLayout(FALSE, XFA_LAYOUT_FLOAT_MAX, XFA_LAYOUT_FLOAT_MAX,
pLayoutContext);
if (!pProcessor->HasLayoutItem()) {
delete pProcessor;
continue;
}
m_pLayoutItem->AddChild(pProcessor->ExtractLayoutItem());
delete pProcessor;
}
int32_t iRowCount = 0, iColCount = 0;
{
CFX_ArrayTemplate<CXFA_ContentLayoutItem*> rgRowItems;
CFX_ArrayTemplate<int32_t> rgRowItemsSpan;
CFX_ArrayTemplate<FX_FLOAT> rgRowItemsWidth;
for (CXFA_ContentLayoutItem* pLayoutChild =
(CXFA_ContentLayoutItem*)m_pLayoutItem->m_pFirstChild;
pLayoutChild;
pLayoutChild = (CXFA_ContentLayoutItem*)pLayoutChild->m_pNextSibling) {
if (pLayoutChild->m_pFormNode->GetElementType() != XFA_Element::Subform) {
continue;
}
if (!XFA_ItemLayoutProcessor_IsTakingSpace(pLayoutChild->m_pFormNode)) {
continue;
}
XFA_ATTRIBUTEENUM eLayout =
pLayoutChild->m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout);
if (eLayout != XFA_ATTRIBUTEENUM_Row &&
eLayout != XFA_ATTRIBUTEENUM_Rl_row) {
continue;
}
if (CXFA_ContentLayoutItem* pRowLayoutCell =
(CXFA_ContentLayoutItem*)pLayoutChild->m_pFirstChild) {
rgRowItems.Add(pRowLayoutCell);
int32_t iColSpan =
pRowLayoutCell->m_pFormNode->GetInteger(XFA_ATTRIBUTE_ColSpan);
rgRowItemsSpan.Add(iColSpan);
rgRowItemsWidth.Add(pRowLayoutCell->m_sSize.x);
}
}
iRowCount = rgRowItems.GetSize();
iColCount = 0;
FX_BOOL bMoreColumns = TRUE;
while (bMoreColumns) {
bMoreColumns = FALSE;
FX_BOOL bAutoCol = FALSE;
for (int32_t i = 0; i < iRowCount; i++) {
while (rgRowItems[i] && (rgRowItemsSpan[i] <= 0 ||
!XFA_ItemLayoutProcessor_IsTakingSpace(
rgRowItems[i]->m_pFormNode))) {
CXFA_ContentLayoutItem* pNewCell =
(CXFA_ContentLayoutItem*)rgRowItems[i]->m_pNextSibling;
if (rgRowItemsSpan[i] < 0 && XFA_ItemLayoutProcessor_IsTakingSpace(
rgRowItems[i]->m_pFormNode)) {
pNewCell = nullptr;
}
rgRowItems[i] = pNewCell;
rgRowItemsSpan[i] =
pNewCell
? pNewCell->m_pFormNode->GetInteger(XFA_ATTRIBUTE_ColSpan)
: 0;
rgRowItemsWidth[i] = pNewCell ? pNewCell->m_sSize.x : 0;
}
CXFA_ContentLayoutItem* pCell = rgRowItems[i];
if (!pCell) {
continue;
}
bMoreColumns = TRUE;
if (rgRowItemsSpan[i] == 1) {
if (iColCount >= iSpecifiedColumnCount) {
for (int32_t j = 0, c = iColCount + 1 -
m_rgSpecifiedColumnWidths.GetSize();
j < c; j++) {
m_rgSpecifiedColumnWidths.Add(0);
}
}
if (m_rgSpecifiedColumnWidths[iColCount] <
XFA_LAYOUT_FLOAT_PERCISION) {
bAutoCol = TRUE;
}
if (bAutoCol &&
m_rgSpecifiedColumnWidths[iColCount] < rgRowItemsWidth[i]) {
m_rgSpecifiedColumnWidths[iColCount] = rgRowItemsWidth[i];
}
}
}
if (bMoreColumns) {
FX_FLOAT fFinalColumnWidth = 0.0f;
if (iColCount < m_rgSpecifiedColumnWidths.GetSize())
fFinalColumnWidth = m_rgSpecifiedColumnWidths[iColCount];
for (int32_t i = 0; i < iRowCount; ++i) {
if (!rgRowItems[i])
continue;
--rgRowItemsSpan[i];
rgRowItemsWidth[i] -= fFinalColumnWidth;
}
++iColCount;
}
}
}
FX_FLOAT fCurrentRowY = 0;
for (CXFA_ContentLayoutItem* pLayoutChild =
(CXFA_ContentLayoutItem*)m_pLayoutItem->m_pFirstChild;
pLayoutChild;
pLayoutChild = (CXFA_ContentLayoutItem*)pLayoutChild->m_pNextSibling) {
if (!XFA_ItemLayoutProcessor_IsTakingSpace(pLayoutChild->m_pFormNode)) {
continue;
}
if (pLayoutChild->m_pFormNode->GetElementType() == XFA_Element::Subform) {
XFA_ATTRIBUTEENUM eSubformLayout =
pLayoutChild->m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout);
if (eSubformLayout == XFA_ATTRIBUTEENUM_Row ||
eSubformLayout == XFA_ATTRIBUTEENUM_Rl_row) {
XFA_ItemLayoutProcessor_RelocateTableRowCells(
pLayoutChild, m_rgSpecifiedColumnWidths, eSubformLayout);
}
}
pLayoutChild->m_sPos.y = fCurrentRowY;
if (bContainerWidthAutoSize) {
pLayoutChild->m_sPos.x = 0;
} else {
switch (pLayoutChild->m_pFormNode->GetEnum(XFA_ATTRIBUTE_HAlign)) {
case XFA_ATTRIBUTEENUM_Left:
default:
pLayoutChild->m_sPos.x = 0;
break;
case XFA_ATTRIBUTEENUM_Center:
pLayoutChild->m_sPos.x =
(fContentWidthLimit - pLayoutChild->m_sSize.x) / 2;
break;
case XFA_ATTRIBUTEENUM_Right:
pLayoutChild->m_sPos.x = fContentWidthLimit - pLayoutChild->m_sSize.x;
break;
}
}
if (bContainerWidthAutoSize) {
FX_FLOAT fChildSuppliedWidth =
pLayoutChild->m_sPos.x + pLayoutChild->m_sSize.x;
if (fContentWidthLimit < XFA_LAYOUT_FLOAT_MAX &&
fContentWidthLimit > fChildSuppliedWidth) {
fChildSuppliedWidth = fContentWidthLimit;
}
if (fContentCalculatedWidth < fChildSuppliedWidth) {
fContentCalculatedWidth = fChildSuppliedWidth;
}
}
fCurrentRowY += pLayoutChild->m_sSize.y;
}
if (bContainerHeightAutoSize) {
FX_FLOAT fChildSuppliedHeight = fCurrentRowY;
if (fContentCalculatedHeight < fChildSuppliedHeight) {
fContentCalculatedHeight = fChildSuppliedHeight;
}
}
XFA_ItemLayoutProcessor_CalculateContainerComponentSizeFromContentSize(
m_pFormNode, bContainerWidthAutoSize, fContentCalculatedWidth,
fContainerWidth, bContainerHeightAutoSize, fContentCalculatedHeight,
fContainerHeight);
SetCurrentComponentSize(fContainerWidth, fContainerHeight);
}
static uint8_t XFA_ItemLayoutProcessor_HAlignEnumToInt(
XFA_ATTRIBUTEENUM eHAlign) {
switch (eHAlign) {
case XFA_ATTRIBUTEENUM_Center:
return 1;
case XFA_ATTRIBUTEENUM_Right:
return 2;
case XFA_ATTRIBUTEENUM_Left:
default:
return 0;
}
}
static void XFA_ItemLayoutProcessor_UpdatePendedItemLayout(
CXFA_ItemLayoutProcessor* pProcessor,
CXFA_ContentLayoutItem* pLayoutItem) {
XFA_ATTRIBUTEENUM eLayout =
pLayoutItem->m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout);
switch (eLayout) {
case XFA_ATTRIBUTEENUM_Row:
case XFA_ATTRIBUTEENUM_Rl_row:
XFA_ItemLayoutProcessor_RelocateTableRowCells(
pLayoutItem, pProcessor->m_rgSpecifiedColumnWidths, eLayout);
break;
default:
break;
}
}
FX_BOOL CXFA_ItemLayoutProcessor::IsAddNewRowForTrailer(
CXFA_ContentLayoutItem* pTrailerItem) {
if (!pTrailerItem) {
return FALSE;
}
FX_FLOAT fWidth = pTrailerItem->m_sSize.x;
XFA_ATTRIBUTEENUM eLayout = m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout);
if (eLayout != XFA_ATTRIBUTEENUM_Tb && m_fWidthLimite > fWidth) {
return FALSE;
}
return TRUE;
}
static void XFA_ItemLayoutProcessor_AddTrailerBeforeSplit(
CXFA_ItemLayoutProcessor* pProcessor,
FX_FLOAT fSplitPos,
CXFA_ContentLayoutItem* pTrailerLayoutItem,
FX_BOOL bUseInherited = FALSE) {
if (!pTrailerLayoutItem) {
return;
}
FX_FLOAT fHeight = pTrailerLayoutItem->m_sSize.y;
if (bUseInherited) {
FX_FLOAT fNewSplitPos = 0;
if (fSplitPos - fHeight > XFA_LAYOUT_FLOAT_PERCISION) {
fNewSplitPos = pProcessor->FindSplitPos(fSplitPos - fHeight);
}
if (fNewSplitPos > XFA_LAYOUT_FLOAT_PERCISION) {
pProcessor->SplitLayoutItem(fNewSplitPos);
}
return;
}
XFA_ItemLayoutProcessor_UpdatePendedItemLayout(pProcessor,
pTrailerLayoutItem);
CXFA_Node* pMarginNode =
pProcessor->m_pFormNode->GetFirstChildByClass(XFA_Element::Margin);
FX_FLOAT fLeftInset = 0, fTopInset = 0, fRightInset = 0, fBottomInset = 0;
if (pMarginNode) {
fLeftInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_LeftInset).ToUnit(XFA_UNIT_Pt);
fTopInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_TopInset).ToUnit(XFA_UNIT_Pt);
fRightInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_RightInset).ToUnit(XFA_UNIT_Pt);
fBottomInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_BottomInset).ToUnit(XFA_UNIT_Pt);
}
if (!pProcessor->IsAddNewRowForTrailer(pTrailerLayoutItem)) {
pTrailerLayoutItem->m_sPos.y = pProcessor->m_fLastRowY;
pTrailerLayoutItem->m_sPos.x = pProcessor->m_fLastRowWidth;
pProcessor->m_pLayoutItem->m_sSize.x += pTrailerLayoutItem->m_sSize.x;
pProcessor->m_pLayoutItem->AddChild(pTrailerLayoutItem);
return;
}
FX_FLOAT fNewSplitPos = 0;
if (fSplitPos - fHeight > XFA_LAYOUT_FLOAT_PERCISION) {
fNewSplitPos = pProcessor->FindSplitPos(fSplitPos - fHeight);
}
if (fNewSplitPos > XFA_LAYOUT_FLOAT_PERCISION) {
pProcessor->SplitLayoutItem(fNewSplitPos);
pTrailerLayoutItem->m_sPos.y = fNewSplitPos - fTopInset - fBottomInset;
} else {
pTrailerLayoutItem->m_sPos.y = fSplitPos - fTopInset - fBottomInset;
}
switch (pTrailerLayoutItem->m_pFormNode->GetEnum(XFA_ATTRIBUTE_HAlign)) {
case XFA_ATTRIBUTEENUM_Left:
default:
pTrailerLayoutItem->m_sPos.x = fLeftInset;
break;
case XFA_ATTRIBUTEENUM_Right:
pTrailerLayoutItem->m_sPos.x = pProcessor->m_pLayoutItem->m_sSize.x -
fRightInset -
pTrailerLayoutItem->m_sSize.x;
break;
case XFA_ATTRIBUTEENUM_Center:
pTrailerLayoutItem->m_sPos.x =
(pProcessor->m_pLayoutItem->m_sSize.x - fLeftInset - fRightInset -
pTrailerLayoutItem->m_sSize.x) /
2;
break;
}
pProcessor->m_pLayoutItem->m_sSize.y += fHeight;
pProcessor->m_pLayoutItem->AddChild(pTrailerLayoutItem);
}
static void XFA_ItemLayoutProcessor_AddLeaderAfterSplit(
CXFA_ItemLayoutProcessor* pProcessor,
CXFA_ContentLayoutItem* pLeaderLayoutItem) {
XFA_ItemLayoutProcessor_UpdatePendedItemLayout(pProcessor, pLeaderLayoutItem);
CXFA_Node* pMarginNode =
pProcessor->m_pFormNode->GetFirstChildByClass(XFA_Element::Margin);
FX_FLOAT fLeftInset = 0;
FX_FLOAT fRightInset = 0;
if (pMarginNode) {
fLeftInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_LeftInset).ToUnit(XFA_UNIT_Pt);
fRightInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_RightInset).ToUnit(XFA_UNIT_Pt);
}
FX_FLOAT fHeight = pLeaderLayoutItem->m_sSize.y;
for (CXFA_ContentLayoutItem* pChildItem =
(CXFA_ContentLayoutItem*)pProcessor->m_pLayoutItem->m_pFirstChild;
pChildItem;
pChildItem = (CXFA_ContentLayoutItem*)pChildItem->m_pNextSibling) {
pChildItem->m_sPos.y += fHeight;
}
pLeaderLayoutItem->m_sPos.y = 0;
switch (pLeaderLayoutItem->m_pFormNode->GetEnum(XFA_ATTRIBUTE_HAlign)) {
case XFA_ATTRIBUTEENUM_Left:
default:
pLeaderLayoutItem->m_sPos.x = fLeftInset;
break;
case XFA_ATTRIBUTEENUM_Right:
pLeaderLayoutItem->m_sPos.x = pProcessor->m_pLayoutItem->m_sSize.x -
fRightInset - pLeaderLayoutItem->m_sSize.x;
break;
case XFA_ATTRIBUTEENUM_Center:
pLeaderLayoutItem->m_sPos.x =
(pProcessor->m_pLayoutItem->m_sSize.x - fLeftInset - fRightInset -
pLeaderLayoutItem->m_sSize.x) /
2;
break;
}
pProcessor->m_pLayoutItem->m_sSize.y += fHeight;
pProcessor->m_pLayoutItem->AddChild(pLeaderLayoutItem);
}
static void XFA_ItemLayoutProcessor_AddPendingNode(
CXFA_ItemLayoutProcessor* pProcessor,
CXFA_Node* pPendingNode,
FX_BOOL bBreakPending) {
pProcessor->m_PendingNodes.push_back(pPendingNode);
pProcessor->m_bBreakPending = bBreakPending;
}
static FX_FLOAT XFA_ItemLayoutProcessor_InsertPendingItems(
CXFA_ItemLayoutProcessor* pProcessor,
CXFA_Node* pCurChildNode) {
FX_FLOAT fTotalHeight = 0;
if (pProcessor->m_PendingNodes.empty()) {
return fTotalHeight;
}
if (!pProcessor->m_pLayoutItem) {
pProcessor->m_pLayoutItem =
pProcessor->CreateContentLayoutItem(pCurChildNode);
pProcessor->m_pLayoutItem->m_sSize.clear();
}
while (!pProcessor->m_PendingNodes.empty()) {
std::unique_ptr<CXFA_ItemLayoutProcessor> pPendingProcessor(
new CXFA_ItemLayoutProcessor(pProcessor->m_PendingNodes.front(),
nullptr));
pProcessor->m_PendingNodes.pop_front();
pPendingProcessor->DoLayout(FALSE, XFA_LAYOUT_FLOAT_MAX);
CXFA_ContentLayoutItem* pPendingLayoutItem =
pPendingProcessor->HasLayoutItem()
? pPendingProcessor->ExtractLayoutItem()
: nullptr;
if (pPendingLayoutItem) {
XFA_ItemLayoutProcessor_AddLeaderAfterSplit(pProcessor,
pPendingLayoutItem);
if (pProcessor->m_bBreakPending) {
fTotalHeight += pPendingLayoutItem->m_sSize.y;
}
}
}
return fTotalHeight;
}
FX_FLOAT CXFA_ItemLayoutProcessor::InsertKeepLayoutItems() {
FX_FLOAT fTotalHeight = 0;
if (m_arrayKeepItems.GetSize()) {
if (!m_pLayoutItem) {
m_pLayoutItem = CreateContentLayoutItem(m_pFormNode);
m_pLayoutItem->m_sSize.clear();
}
for (int32_t iIndex = m_arrayKeepItems.GetSize() - 1; iIndex >= 0;
iIndex--) {
XFA_ItemLayoutProcessor_AddLeaderAfterSplit(this,
m_arrayKeepItems[iIndex]);
fTotalHeight += m_arrayKeepItems[iIndex]->m_sSize.y;
}
m_arrayKeepItems.RemoveAll();
}
return fTotalHeight;
}
FX_BOOL CXFA_ItemLayoutProcessor::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) {
if (!pParentProcessor || !pChildProcessor) {
return FALSE;
}
if (pParentProcessor->m_pCurChildNode->GetIntact() !=
XFA_ATTRIBUTEENUM_None ||
!pChildProcessor->m_bHasAvailHeight) {
if (XFA_ExistContainerKeep(pParentProcessor->m_pCurChildNode, TRUE)) {
FX_FLOAT fChildWidth, fChildHeight;
pChildProcessor->GetCurrentComponentSize(fChildWidth, fChildHeight);
CFX_ArrayTemplate<CXFA_ContentLayoutItem*> keepLayoutItems;
if (pParentProcessor->JudgePutNextPage(pParentProcessor->m_pLayoutItem,
fChildHeight, keepLayoutItems)) {
m_arrayKeepItems.RemoveAll();
for (int32_t iIndex = 0; iIndex < keepLayoutItems.GetSize(); iIndex++) {
CXFA_ContentLayoutItem* pItem = keepLayoutItems.GetAt(iIndex);
pParentProcessor->m_pLayoutItem->RemoveChild(pItem);
fContentCurRowY -= pItem->m_sSize.y;
m_arrayKeepItems.Add(pItem);
}
bAddedItemInRow = TRUE;
bForceEndPage = TRUE;
result = XFA_ItemLayoutProcessorResult_PageFullBreak;
return TRUE;
}
rgCurLineLayoutItem.Add(pChildProcessor->ExtractLayoutItem());
bAddedItemInRow = TRUE;
fContentCurRowAvailWidth -= fChildWidth;
if (fContentCurRowHeight < fChildHeight) {
fContentCurRowHeight = fChildHeight;
}
result = eRetValue;
return TRUE;
}
}
return FALSE;
}
FX_BOOL CXFA_ItemLayoutProcessor::JudgePutNextPage(
CXFA_ContentLayoutItem* pParentLayoutItem,
FX_FLOAT fChildHeight,
CFX_ArrayTemplate<CXFA_ContentLayoutItem*>& pKeepItems) {
if (!pParentLayoutItem) {
return FALSE;
}
FX_FLOAT fItemsHeight = 0;
for (CXFA_ContentLayoutItem* pChildLayoutItem =
(CXFA_ContentLayoutItem*)pParentLayoutItem->m_pFirstChild;
pChildLayoutItem;
pChildLayoutItem =
(CXFA_ContentLayoutItem*)pChildLayoutItem->m_pNextSibling) {
if (XFA_ExistContainerKeep(pChildLayoutItem->m_pFormNode, FALSE)) {
pKeepItems.Add(pChildLayoutItem);
fItemsHeight += pChildLayoutItem->m_sSize.y;
} else {
pKeepItems.RemoveAll();
fItemsHeight = 0;
}
}
fItemsHeight += fChildHeight;
if (m_pPageMgr->GetNextAvailContentHeight(fItemsHeight)) {
return TRUE;
}
return FALSE;
}
void CXFA_ItemLayoutProcessor::ProcessUnUseBinds(CXFA_Node* pFormNode) {
if (!pFormNode) {
return;
}
CXFA_NodeIteratorTemplate<CXFA_Node, CXFA_TraverseStrategy_XFANode> sIterator(
pFormNode);
for (CXFA_Node* pNode = sIterator.MoveToNext(); pNode;
pNode = sIterator.MoveToNext()) {
if (pNode->IsContainerNode()) {
CXFA_Node* pBindNode = pNode->GetBindData();
if (pBindNode) {
pBindNode->RemoveBindItem(pNode);
pNode->SetObject(XFA_ATTRIBUTE_BindingNode, nullptr);
}
}
pNode->SetFlag(XFA_NodeFlag_UnusedNode, true);
}
}
void CXFA_ItemLayoutProcessor::ProcessUnUseOverFlow(
CXFA_Node* pLeaderNode,
CXFA_Node* pTrailerNode,
CXFA_ContentLayoutItem* pTrailerItem,
CXFA_Node* pFormNode) {
ProcessUnUseBinds(pLeaderNode);
ProcessUnUseBinds(pTrailerNode);
if (!pFormNode) {
return;
}
if (pFormNode->GetElementType() == XFA_Element::Overflow ||
pFormNode->GetElementType() == XFA_Element::Break) {
pFormNode = pFormNode->GetNodeItem(XFA_NODEITEM_Parent);
}
if (pLeaderNode && pFormNode) {
pFormNode->RemoveChild(pLeaderNode);
}
if (pTrailerNode && pFormNode) {
pFormNode->RemoveChild(pTrailerNode);
}
if (pTrailerItem) {
XFA_ReleaseLayoutItem(pTrailerItem);
}
}
static XFA_ItemLayoutProcessorResult XFA_ItemLayoutProcessor_InsertFlowedItem(
CXFA_ItemLayoutProcessor* pThis,
CXFA_ItemLayoutProcessor* pProcessor,
FX_BOOL bContainerWidthAutoSize,
FX_BOOL bContainerHeightAutoSize,
FX_FLOAT fContainerHeight,
XFA_ATTRIBUTEENUM eFlowStrategy,
uint8_t& uCurHAlignState,
CFX_ArrayTemplate<CXFA_ContentLayoutItem*> (&rgCurLineLayoutItems)[3],
FX_BOOL bUseBreakControl,
FX_FLOAT fAvailHeight,
FX_FLOAT fRealHeight,
FX_FLOAT& fContentCurRowY,
FX_FLOAT& fContentWidthLimit,
FX_FLOAT& fContentCurRowAvailWidth,
FX_FLOAT& fContentCurRowHeight,
FX_BOOL& bAddedItemInRow,
FX_BOOL& bForceEndPage,
CXFA_LayoutContext* pLayoutContext = nullptr,
FX_BOOL bNewRow = FALSE) {
FX_BOOL bTakeSpace =
XFA_ItemLayoutProcessor_IsTakingSpace(pProcessor->m_pFormNode);
uint8_t uHAlign = XFA_ItemLayoutProcessor_HAlignEnumToInt(
pThis->m_pCurChildNode->GetEnum(XFA_ATTRIBUTE_HAlign));
if (bContainerWidthAutoSize) {
uHAlign = 0;
}
if ((eFlowStrategy != XFA_ATTRIBUTEENUM_Rl_tb && uHAlign < uCurHAlignState) ||
(eFlowStrategy == XFA_ATTRIBUTEENUM_Rl_tb && uHAlign > uCurHAlignState)) {
return XFA_ItemLayoutProcessorResult_RowFullBreak;
}
uCurHAlignState = uHAlign;
FX_BOOL bIsOwnSplite =
pProcessor->m_pFormNode->GetIntact() == XFA_ATTRIBUTEENUM_None;
FX_BOOL bUseRealHeight =
bTakeSpace && bContainerHeightAutoSize && bIsOwnSplite &&
pProcessor->m_pFormNode->GetNodeItem(XFA_NODEITEM_Parent)->GetIntact() ==
XFA_ATTRIBUTEENUM_None;
FX_BOOL bIsTransHeight = bTakeSpace;
if (bIsTransHeight && !bIsOwnSplite) {
FX_BOOL bRootForceTb = FALSE;
XFA_ATTRIBUTEENUM eLayoutStrategy = XFA_ItemLayoutProcessor_GetLayout(
pProcessor->m_pFormNode, bRootForceTb);
if (eLayoutStrategy == XFA_ATTRIBUTEENUM_Lr_tb ||
eLayoutStrategy == XFA_ATTRIBUTEENUM_Rl_tb) {
bIsTransHeight = FALSE;
}
}
FX_BOOL bUseInherited = FALSE;
CXFA_LayoutContext layoutContext;
if (pThis->m_pPageMgr) {
CXFA_Node* pOverflowNode =
pThis->m_pPageMgr->QueryOverflow(pThis->m_pFormNode);
if (pOverflowNode) {
layoutContext.m_pOverflowNode = pOverflowNode;
layoutContext.m_pOverflowProcessor = pThis;
pLayoutContext = &layoutContext;
}
}
XFA_ItemLayoutProcessorResult eRetValue = XFA_ItemLayoutProcessorResult_Done;
if (!bNewRow ||
pProcessor->m_ePreProcessRs == XFA_ItemLayoutProcessorResult_Done) {
eRetValue = pProcessor->DoLayout(
bTakeSpace ? bUseBreakControl : FALSE,
bUseRealHeight ? fRealHeight - fContentCurRowY : XFA_LAYOUT_FLOAT_MAX,
bIsTransHeight ? fRealHeight - fContentCurRowY : XFA_LAYOUT_FLOAT_MAX,
pLayoutContext);
pProcessor->m_ePreProcessRs = eRetValue;
} else {
eRetValue = pProcessor->m_ePreProcessRs;
pProcessor->m_ePreProcessRs = XFA_ItemLayoutProcessorResult_Done;
}
if (pProcessor->HasLayoutItem() == FALSE) {
return eRetValue;
}
FX_FLOAT fChildWidth, fChildHeight;
pProcessor->GetCurrentComponentSize(fChildWidth, fChildHeight);
if (bUseRealHeight && fRealHeight < XFA_LAYOUT_FLOAT_PERCISION) {
fRealHeight = XFA_LAYOUT_FLOAT_MAX;
fAvailHeight = XFA_LAYOUT_FLOAT_MAX;
}
if (!bTakeSpace ||
(fChildWidth <= fContentCurRowAvailWidth + XFA_LAYOUT_FLOAT_PERCISION) ||
(fContentWidthLimit - fContentCurRowAvailWidth <=
XFA_LAYOUT_FLOAT_PERCISION)) {
CXFA_Node* pOverflowLeaderNode = nullptr;
CXFA_Node* pOverflowTrailerNode = nullptr;
CXFA_Node* pFormNode = nullptr;
CXFA_ContentLayoutItem* pTrailerLayoutItem = nullptr;
FX_BOOL bIsAddTrailerHeight = FALSE;
if (pThis->m_pPageMgr &&
pProcessor->m_pFormNode->GetIntact() == XFA_ATTRIBUTEENUM_None) {
pFormNode = pThis->m_pPageMgr->QueryOverflow(pProcessor->m_pFormNode);
if (!pFormNode && pLayoutContext &&
pLayoutContext->m_pOverflowProcessor) {
pFormNode = pLayoutContext->m_pOverflowNode;
bUseInherited = TRUE;
}
if (pThis->m_pPageMgr->ProcessOverflow(pFormNode, pOverflowLeaderNode,
pOverflowTrailerNode, FALSE,
FALSE)) {
if (pProcessor->JudgeLeaderOrTrailerForOccur(pOverflowTrailerNode)) {
if (pOverflowTrailerNode) {
CXFA_ItemLayoutProcessor* pOverflowLeaderProcessor =
new CXFA_ItemLayoutProcessor(pOverflowTrailerNode, nullptr);
pOverflowLeaderProcessor->DoLayout(FALSE, XFA_LAYOUT_FLOAT_MAX);
pTrailerLayoutItem =
pOverflowLeaderProcessor->HasLayoutItem()
? pOverflowLeaderProcessor->ExtractLayoutItem()
: nullptr;
delete pOverflowLeaderProcessor;
}
if (bUseInherited) {
bIsAddTrailerHeight =
pThis->IsAddNewRowForTrailer(pTrailerLayoutItem);
} else {
bIsAddTrailerHeight =
pProcessor->IsAddNewRowForTrailer(pTrailerLayoutItem);
}
if (bIsAddTrailerHeight) {
FX_FLOAT fTrailerHeight = pTrailerLayoutItem->m_sSize.y;
fChildHeight += fTrailerHeight;
bIsAddTrailerHeight = TRUE;
}
}
}
}
if (!bTakeSpace ||
fContentCurRowY + fChildHeight <=
fAvailHeight + XFA_LAYOUT_FLOAT_PERCISION ||
(!bContainerHeightAutoSize &&
pThis->m_fUsedSize + fAvailHeight + XFA_LAYOUT_FLOAT_PERCISION >=
fContainerHeight)) {
if (!bTakeSpace || eRetValue == XFA_ItemLayoutProcessorResult_Done) {
if (pProcessor->m_bUseInheriated) {
if (pTrailerLayoutItem) {
XFA_ItemLayoutProcessor_AddTrailerBeforeSplit(
pProcessor, fChildHeight, pTrailerLayoutItem);
}
if (pProcessor->JudgeLeaderOrTrailerForOccur(pOverflowLeaderNode)) {
XFA_ItemLayoutProcessor_AddPendingNode(pProcessor,
pOverflowLeaderNode, FALSE);
}
pProcessor->m_bUseInheriated = FALSE;
} else {
if (bIsAddTrailerHeight) {
fChildHeight -= pTrailerLayoutItem->m_sSize.y;
}
pProcessor->ProcessUnUseOverFlow(pOverflowLeaderNode,
pOverflowTrailerNode,
pTrailerLayoutItem, pFormNode);
}
CXFA_ContentLayoutItem* pChildLayoutItem =
pProcessor->ExtractLayoutItem();
if (XFA_ExistContainerKeep(pProcessor->m_pFormNode, FALSE) &&
pProcessor->m_pFormNode->GetIntact() == XFA_ATTRIBUTEENUM_None) {
pThis->m_arrayKeepItems.Add(pChildLayoutItem);
} else {
pThis->m_arrayKeepItems.RemoveAll();
}
rgCurLineLayoutItems[uHAlign].Add(pChildLayoutItem);
bAddedItemInRow = TRUE;
if (bTakeSpace) {
fContentCurRowAvailWidth -= fChildWidth;
if (fContentCurRowHeight < fChildHeight) {
fContentCurRowHeight = fChildHeight;
}
}
return XFA_ItemLayoutProcessorResult_Done;
} else {
if (eRetValue == XFA_ItemLayoutProcessorResult_PageFullBreak) {
if (pProcessor->m_bUseInheriated) {
if (pTrailerLayoutItem) {
XFA_ItemLayoutProcessor_AddTrailerBeforeSplit(
pProcessor, fChildHeight, pTrailerLayoutItem);
}
if (pProcessor->JudgeLeaderOrTrailerForOccur(pOverflowLeaderNode)) {
XFA_ItemLayoutProcessor_AddPendingNode(
pProcessor, pOverflowLeaderNode, FALSE);
}
pProcessor->m_bUseInheriated = FALSE;
} else {
if (bIsAddTrailerHeight) {
fChildHeight -= pTrailerLayoutItem->m_sSize.y;
}
pProcessor->ProcessUnUseOverFlow(pOverflowLeaderNode,
pOverflowTrailerNode,
pTrailerLayoutItem, pFormNode);
}
}
rgCurLineLayoutItems[uHAlign].Add(pProcessor->ExtractLayoutItem());
bAddedItemInRow = TRUE;
fContentCurRowAvailWidth -= fChildWidth;
if (fContentCurRowHeight < fChildHeight) {
fContentCurRowHeight = fChildHeight;
}
return eRetValue;
}
} else {
XFA_ItemLayoutProcessorResult eResult;
if (pThis->ProcessKeepForSplite(
pThis, pProcessor, eRetValue, rgCurLineLayoutItems[uHAlign],
fContentCurRowAvailWidth, fContentCurRowHeight, fContentCurRowY,
bAddedItemInRow, bForceEndPage, eResult)) {
return eResult;
}
bForceEndPage = TRUE;
FX_FLOAT fSplitPos =
pProcessor->FindSplitPos(fAvailHeight - fContentCurRowY);
if (fSplitPos > XFA_LAYOUT_FLOAT_PERCISION) {
XFA_ATTRIBUTEENUM eLayout =
pProcessor->m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout);
if (eLayout == XFA_ATTRIBUTEENUM_Tb &&
eRetValue == XFA_ItemLayoutProcessorResult_Done) {
pProcessor->ProcessUnUseOverFlow(pOverflowLeaderNode,
pOverflowTrailerNode,
pTrailerLayoutItem, pFormNode);
rgCurLineLayoutItems[uHAlign].Add(pProcessor->ExtractLayoutItem());
bAddedItemInRow = TRUE;
if (bTakeSpace) {
fContentCurRowAvailWidth -= fChildWidth;
if (fContentCurRowHeight < fChildHeight) {
fContentCurRowHeight = fChildHeight;
}
}
return XFA_ItemLayoutProcessorResult_PageFullBreak;
}
CXFA_Node* pTempLeaderNode = nullptr;
CXFA_Node* pTempTrailerNode = nullptr;
if (pThis->m_pPageMgr && !pProcessor->m_bUseInheriated &&
eRetValue != XFA_ItemLayoutProcessorResult_PageFullBreak) {
pThis->m_pPageMgr->ProcessOverflow(pFormNode, pTempLeaderNode,
pTempTrailerNode, FALSE, TRUE);
}
if (pTrailerLayoutItem && bIsAddTrailerHeight) {
XFA_ItemLayoutProcessor_AddTrailerBeforeSplit(
pProcessor, fSplitPos, pTrailerLayoutItem, bUseInherited);
} else {
pProcessor->SplitLayoutItem(fSplitPos);
}
if (bUseInherited) {
pProcessor->ProcessUnUseOverFlow(pOverflowLeaderNode,
pOverflowTrailerNode,
pTrailerLayoutItem, pFormNode);
pThis->m_bUseInheriated = TRUE;
} else {
CXFA_LayoutItem* firstChild =
pProcessor->m_pLayoutItem->m_pFirstChild;
if (firstChild && !firstChild->m_pNextSibling &&
firstChild->m_pFormNode->IsLayoutGeneratedNode()) {
pProcessor->ProcessUnUseOverFlow(pOverflowLeaderNode,
pOverflowTrailerNode,
pTrailerLayoutItem, pFormNode);
} else {
if (pProcessor->JudgeLeaderOrTrailerForOccur(pOverflowLeaderNode)) {
XFA_ItemLayoutProcessor_AddPendingNode(
pProcessor, pOverflowLeaderNode, FALSE);
}
}
}
if (pProcessor->m_pLayoutItem->m_pNextSibling) {
pProcessor->GetCurrentComponentSize(fChildWidth, fChildHeight);
rgCurLineLayoutItems[uHAlign].Add(pProcessor->ExtractLayoutItem());
bAddedItemInRow = TRUE;
if (bTakeSpace) {
fContentCurRowAvailWidth -= fChildWidth;
if (fContentCurRowHeight < fChildHeight) {
fContentCurRowHeight = fChildHeight;
}
}
}
return XFA_ItemLayoutProcessorResult_PageFullBreak;
} else if (fContentCurRowY <= XFA_LAYOUT_FLOAT_PERCISION) {
pProcessor->GetCurrentComponentSize(fChildWidth, fChildHeight);
if (pProcessor->m_pPageMgr->GetNextAvailContentHeight(fChildHeight)) {
CXFA_Node* pTempLeaderNode = nullptr;
CXFA_Node* pTempTrailerNode = nullptr;
if (pThis->m_pPageMgr) {
if (!pFormNode && pLayoutContext) {
pFormNode = pLayoutContext->m_pOverflowProcessor->m_pFormNode;
}
pThis->m_pPageMgr->ProcessOverflow(pFormNode, pTempLeaderNode,
pTempTrailerNode, FALSE, TRUE);
}
if (bUseInherited) {
pProcessor->ProcessUnUseOverFlow(pOverflowLeaderNode,
pOverflowTrailerNode,
pTrailerLayoutItem, pFormNode);
pThis->m_bUseInheriated = TRUE;
}
return XFA_ItemLayoutProcessorResult_PageFullBreak;
}
rgCurLineLayoutItems[uHAlign].Add(pProcessor->ExtractLayoutItem());
bAddedItemInRow = TRUE;
if (bTakeSpace) {
fContentCurRowAvailWidth -= fChildWidth;
if (fContentCurRowHeight < fChildHeight) {
fContentCurRowHeight = fChildHeight;
}
}
if (eRetValue == XFA_ItemLayoutProcessorResult_Done) {
bForceEndPage = FALSE;
}
return eRetValue;
} else {
XFA_ATTRIBUTEENUM eLayout =
pProcessor->m_pFormNode->GetEnum(XFA_ATTRIBUTE_Layout);
if (pProcessor->m_pFormNode->GetIntact() == XFA_ATTRIBUTEENUM_None &&
eLayout == XFA_ATTRIBUTEENUM_Tb) {
if (pThis->m_pPageMgr) {
pThis->m_pPageMgr->ProcessOverflow(pFormNode, pOverflowLeaderNode,
pOverflowTrailerNode, FALSE,
TRUE);
}
if (pTrailerLayoutItem) {
XFA_ItemLayoutProcessor_AddTrailerBeforeSplit(pProcessor, fSplitPos,
pTrailerLayoutItem);
}
if (pProcessor->JudgeLeaderOrTrailerForOccur(pOverflowLeaderNode)) {
XFA_ItemLayoutProcessor_AddPendingNode(pProcessor,
pOverflowLeaderNode, FALSE);
}
} else {
if (eRetValue == XFA_ItemLayoutProcessorResult_Done) {
if (!pFormNode && pLayoutContext) {
pFormNode = pLayoutContext->m_pOverflowProcessor->m_pFormNode;
}
if (pThis->m_pPageMgr) {
pThis->m_pPageMgr->ProcessOverflow(pFormNode, pOverflowLeaderNode,
pOverflowTrailerNode, FALSE,
TRUE);
}
if (bUseInherited) {
pProcessor->ProcessUnUseOverFlow(pOverflowLeaderNode,
pOverflowTrailerNode,
pTrailerLayoutItem, pFormNode);
pThis->m_bUseInheriated = TRUE;
}
}
}
return XFA_ItemLayoutProcessorResult_PageFullBreak;
}
}
} else {
return XFA_ItemLayoutProcessorResult_RowFullBreak;
}
return XFA_ItemLayoutProcessorResult_Done;
}
XFA_ItemLayoutProcessorResult CXFA_ItemLayoutProcessor::DoLayoutFlowedContainer(
FX_BOOL bUseBreakControl,
XFA_ATTRIBUTEENUM eFlowStrategy,
FX_FLOAT fHeightLimit,
FX_FLOAT fRealHeight,
CXFA_LayoutContext* pContext,
FX_BOOL bRootForceTb) {
m_bHasAvailHeight = TRUE;
FX_FLOAT fContainerWidth = 0, fContainerHeight = 0;
FX_BOOL bBreakDone = FALSE;
FX_BOOL bContainerWidthAutoSize = TRUE, bContainerHeightAutoSize = TRUE;
FX_BOOL bForceEndPage = FALSE;
FX_BOOL bIsManualBreak = FALSE;
if (m_pCurChildPreprocessor) {
m_pCurChildPreprocessor->m_ePreProcessRs =
XFA_ItemLayoutProcessorResult_Done;
}
XFA_ItemLayoutProcessor_CalculateContainerSpecfiedSize(
m_pFormNode, fContainerWidth, fContainerHeight, bContainerWidthAutoSize,
bContainerHeightAutoSize);
if (pContext && pContext->m_bCurColumnWidthAvaiable) {
bContainerWidthAutoSize = FALSE;
fContainerWidth = pContext->m_fCurColumnWidth;
}
if (!bContainerHeightAutoSize) {
fContainerHeight -= m_fUsedSize;
}
if (!bContainerHeightAutoSize) {
CXFA_Node* pParentNode = m_pFormNode->GetNodeItem(XFA_NODEITEM_Parent);
FX_BOOL bFocrTb = FALSE;
if (pParentNode &&
XFA_ItemLayoutProcessor_GetLayout(pParentNode, bFocrTb) ==
XFA_ATTRIBUTEENUM_Row) {
CXFA_Node* pChildContainer = m_pFormNode->GetNodeItem(
XFA_NODEITEM_FirstChild, XFA_ObjectType::ContainerNode);
if (pChildContainer &&
pChildContainer->GetNodeItem(XFA_NODEITEM_NextSibling,
XFA_ObjectType::ContainerNode)) {
fContainerHeight = 0;
bContainerHeightAutoSize = TRUE;
}
}
}
CXFA_Node* pMarginNode =
m_pFormNode->GetFirstChildByClass(XFA_Element::Margin);
FX_FLOAT fLeftInset = 0, fTopInset = 0, fRightInset = 0, fBottomInset = 0;
if (pMarginNode) {
fLeftInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_LeftInset).ToUnit(XFA_UNIT_Pt);
fTopInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_TopInset).ToUnit(XFA_UNIT_Pt);
fRightInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_RightInset).ToUnit(XFA_UNIT_Pt);
fBottomInset =
pMarginNode->GetMeasure(XFA_ATTRIBUTE_BottomInset).ToUnit(XFA_UNIT_Pt);
}
FX_FLOAT fContentWidthLimit =
bContainerWidthAutoSize ? XFA_LAYOUT_FLOAT_MAX
: fContainerWidth - fLeftInset - fRightInset;
FX_FLOAT fContentCalculatedWidth = 0, fContentCalculatedHeight = 0;
FX_FLOAT fAvailHeight = fHeightLimit - fTopInset - fBottomInset;
if (fAvailHeight < 0) {
m_bHasAvailHeight = FALSE;
}
fRealHeight = fRealHeight - fTopInset - fBottomInset;
FX_FLOAT fContentCurRowY = 0;
CXFA_ContentLayoutItem* pLayoutChild = nullptr;
if (m_pLayoutItem) {
if (m_nCurChildNodeStage != XFA_ItemLayoutProcessorStages_Done &&
eFlowStrategy != XFA_ATTRIBUTEENUM_Tb) {
pLayoutChild = (CXFA_ContentLayoutItem*)m_pLayoutItem->m_pFirstChild;
for (CXFA_ContentLayoutItem* pLayoutNext = pLayoutChild; pLayoutNext;
pLayoutNext = (CXFA_ContentLayoutItem*)pLayoutNext->m_pNextSibling) {
if (pLayoutNext->m_sPos.y != pLayoutChild->m_sPos.y) {
pLayoutChild = pLayoutNext;
}
}
}
for (CXFA_ContentLayoutItem* pLayoutTempChild =
(CXFA_ContentLayoutItem*)m_pLayoutItem->m_pFirstChild;
pLayoutTempChild != pLayoutChild;
pLayoutTempChild =
(CXFA_ContentLayoutItem*)pLayoutTempChild->m_pNextSibling) {
if (XFA_ItemLayoutProcessor_IsTakingSpace(
pLayoutTempChild->m_pFormNode)) {
FX_FLOAT fChildContentWidth =
pLayoutTempChild->m_sPos.x + pLayoutTempChild->m_sSize.x;
FX_FLOAT fChildContentHeight =
pLayoutTempChild->m_sPos.y + pLayoutTempChild->m_sSize.y;
if (fContentCalculatedWidth < fChildContentWidth) {
fContentCalculatedWidth = fChildContentWidth;
}
if (fContentCalculatedHeight < fChildContentHeight) {
fContentCalculatedHeight = fChildContentHeight;
}
}
}
if (pLayoutChild) {
fContentCurRowY = pLayoutChild->m_sPos.y;
} else {
fContentCurRowY = fContentCalculatedHeight;
}
}
fContentCurRowY += InsertKeepLayoutItems();
if (m_nCurChildNodeStage == XFA_ItemLayoutProcessorStages_None) {
XFA_ItemLayoutProcessor_GotoNextContainerNode(
m_pCurChildNode, m_nCurChildNodeStage, m_pFormNode, TRUE);
}
fContentCurRowY +=
XFA_ItemLayoutProcessor_InsertPendingItems(this, m_pFormNode);
if (m_pCurChildPreprocessor &&
m_nCurChildNodeStage == XFA_ItemLayoutProcessorStages_Container) {
if (XFA_ExistContainerKeep(m_pCurChildPreprocessor->GetFormNode(), FALSE)) {
m_pKeepHeadNode = m_pCurChildNode;
m_bIsProcessKeep = TRUE;
m_nCurChildNodeStage = XFA_ItemLayoutProcessorStages_Keep;
}
}
while (m_nCurChildNodeStage != XFA_ItemLayoutProcessorStages_Done) {
FX_FLOAT fContentCurRowHeight = 0;
FX_FLOAT fContentCurRowAvailWidth = fContentWidthLimit;
m_fWidthLimite = fContentCurRowAvailWidth;
CFX_ArrayTemplate<CXFA_ContentLayoutItem*> rgCurLineLayoutItems[3];
uint8_t uCurHAlignState =
(eFlowStrategy != XFA_ATTRIBUTEENUM_Rl_tb ? 0 : 2);
if (pLayoutChild) {
for (CXFA_ContentLayoutItem* pLayoutNext = pLayoutChild; pLayoutNext;
pLayoutNext = (CXFA_ContentLayoutItem*)pLayoutNext->m_pNextSibling) {
if (!pLayoutNext->m_pNextSibling && m_pCurChildPreprocessor &&
m_pCurChildPreprocessor->m_pFormNode == pLayoutNext->m_pFormNode) {
pLayoutNext->m_pNext = m_pCurChildPreprocessor->m_pLayoutItem;
m_pCurChildPreprocessor->m_pLayoutItem = pLayoutNext;
break;
}
uint8_t uHAlign = XFA_ItemLayoutProcessor_HAlignEnumToInt(
pLayoutNext->m_pFormNode->GetEnum(XFA_ATTRIBUTE_HAlign));
rgCurLineLayoutItems[uHAlign].Add(pLayoutNext);
if (eFlowStrategy == XFA_ATTRIBUTEENUM_Lr_tb) {
if (uHAlign > uCurHAlignState) {
uCurHAlignState = uHAlign;
}
} else if (uHAlign < uCurHAlignState) {
uCurHAlignState = uHAlign;
}
if (XFA_ItemLayoutProcessor_IsTakingSpace(pLayoutNext->m_pFormNode)) {
if (pLayoutNext->m_sSize.y > fContentCurRowHeight) {
fContentCurRowHeight = pLayoutNext->m_sSize.y;
}
fContentCurRowAvailWidth -= pLayoutNext->m_sSize.x;
}
}
if ((CXFA_ContentLayoutItem*)m_pLayoutItem->m_pFirstChild ==
pLayoutChild) {
m_pLayoutItem->m_pFirstChild = nullptr;
} else {
CXFA_ContentLayoutItem* pLayoutNext =
(CXFA_ContentLayoutItem*)m_pLayoutItem->m_pFirstChild;
for (; pLayoutNext;
pLayoutNext =
(CXFA_ContentLayoutItem*)pLayoutNext->m_pNextSibling) {
if ((CXFA_ContentLayoutItem*)pLayoutNext->m_pNextSibling ==
pLayoutChild) {
pLayoutNext->m_pNextSibling = nullptr;
break;
}
}
}
CXFA_ContentLayoutItem* pLayoutNextTemp =
(CXFA_ContentLayoutItem*)pLayoutChild;
while (pLayoutNextTemp) {
pLayoutNextTemp->m_pParent = nullptr;
CXFA_ContentLayoutItem* pSaveLayoutNext =
(CXFA_ContentLayoutItem*)pLayoutNextTemp->m_pNextSibling;
pLayoutNextTemp->m_pNextSibling = nullptr;
pLayoutNextTemp = pSaveLayoutNext;
}
pLayoutChild = nullptr;
}
while (m_pCurChildNode) {
CXFA_ItemLayoutProcessor* pProcessor = nullptr;
FX_BOOL bAddedItemInRow = FALSE;
fContentCurRowY +=
XFA_ItemLayoutProcessor_InsertPendingItems(this, m_pFormNode);
switch (m_nCurChildNodeStage) {
case XFA_ItemLayoutProcessorStages_Keep:
case XFA_ItemLayoutProcessorStages_None:
break;
case XFA_ItemLayoutProcessorStages_BreakBefore: {
for (int32_t iIndex = 0; iIndex < m_arrayKeepItems.GetSize();
iIndex++) {
CXFA_ContentLayoutItem* pItem = m_arrayKeepItems.GetAt(iIndex);
m_pLayoutItem->RemoveChild(pItem);
fContentCalculatedHeight -= pItem->m_sSize.y;
}
CXFA_Node* pLeaderNode = nullptr;
CXFA_Node* pTrailerNode = nullptr;
FX_BOOL bCreatePage = FALSE;
if (bUseBreakControl && m_pPageMgr &&
m_pPageMgr->ProcessBreakBeforeOrAfter(m_pCurChildNode, TRUE,
pLeaderNode, pTrailerNode,
bCreatePage) &&
m_pFormNode->GetElementType() != XFA_Element::Form &&
bCreatePage) {
if (JudgeLeaderOrTrailerForOccur(pLeaderNode)) {
XFA_ItemLayoutProcessor_AddPendingNode(this, pLeaderNode, TRUE);
}
if (JudgeLeaderOrTrailerForOccur(pTrailerNode)) {
if (m_pFormNode->GetNodeItem(XFA_NODEITEM_Parent)
->GetElementType() == XFA_Element::Form &&
!m_pLayoutItem) {
XFA_ItemLayoutProcessor_AddPendingNode(this, pTrailerNode,
TRUE);
} else {
std::unique_ptr<CXFA_ItemLayoutProcessor> pTempProcessor(
new CXFA_ItemLayoutProcessor(pTrailerNode, nullptr));
XFA_ItemLayoutProcessor_InsertFlowedItem(
this, pTempProcessor.get(), bContainerWidthAutoSize,
bContainerHeightAutoSize, fContainerHeight, eFlowStrategy,
uCurHAlignState, rgCurLineLayoutItems, FALSE,
XFA_LAYOUT_FLOAT_MAX, XFA_LAYOUT_FLOAT_MAX, fContentCurRowY,
fContentWidthLimit, fContentCurRowAvailWidth,
fContentCurRowHeight, bAddedItemInRow, bForceEndPage,
pContext);
}
}
XFA_ItemLayoutProcessor_GotoNextContainerNode(
m_pCurChildNode, m_nCurChildNodeStage, m_pFormNode, TRUE);
bForceEndPage = TRUE;
bIsManualBreak = TRUE;
goto SuspendAndCreateNewRow;
}
} break;
case XFA_ItemLayoutProcessorStages_BreakAfter: {
CXFA_Node* pLeaderNode = nullptr;
CXFA_Node* pTrailerNode = nullptr;
FX_BOOL bCreatePage = FALSE;
if (bUseBreakControl && m_pPageMgr &&
m_pPageMgr->ProcessBreakBeforeOrAfter(m_pCurChildNode, FALSE,
pLeaderNode, pTrailerNode,
bCreatePage) &&
m_pFormNode->GetElementType() != XFA_Element::Form) {
if (JudgeLeaderOrTrailerForOccur(pTrailerNode)) {
std::unique_ptr<CXFA_ItemLayoutProcessor> pTempProcessor(
new CXFA_ItemLayoutProcessor(pTrailerNode, nullptr));
XFA_ItemLayoutProcessor_InsertFlowedItem(
this, pTempProcessor.get(), bContainerWidthAutoSize,
bContainerHeightAutoSize, fContainerHeight, eFlowStrategy,
uCurHAlignState, rgCurLineLayoutItems, FALSE,
XFA_LAYOUT_FLOAT_MAX, XFA_LAYOUT_FLOAT_MAX, fContentCurRowY,
fContentWidthLimit, fContentCurRowAvailWidth,
fContentCurRowHeight, bAddedItemInRow, bForceEndPage,
pContext);
}
if (!bCreatePage) {
if (JudgeLeaderOrTrailerForOccur(pLeaderNode)) {
CalculateRowChildPosition(
rgCurLineLayoutItems, eFlowStrategy,
bContainerHeightAutoSize, bContainerWidthAutoSize,
fContentCalculatedWidth, fContentCalculatedHeight,
fContentCurRowY, fContentCurRowHeight, fContentWidthLimit);
rgCurLineLayoutItems->RemoveAll();
std::unique_ptr<CXFA_ItemLayoutProcessor> pTempProcessor(
new CXFA_ItemLayoutProcessor(pLeaderNode, nullptr));
XFA_ItemLayoutProcessor_InsertFlowedItem(
this, pTempProcessor.get(), bContainerWidthAutoSize,
bContainerHeightAutoSize, fContainerHeight, eFlowStrategy,
uCurHAlignState, rgCurLineLayoutItems, FALSE,
XFA_LAYOUT_FLOAT_MAX, XFA_LAYOUT_FLOAT_MAX, fContentCurRowY,
fContentWidthLimit, fContentCurRowAvailWidth,
fContentCurRowHeight, bAddedItemInRow, bForceEndPage,
pContext);
}
} else {
if (JudgeLeaderOrTrailerForOccur(pLeaderNode)) {
XFA_ItemLayoutProcessor_AddPendingNode(this, pLeaderNode, TRUE);
}
}
XFA_ItemLayoutProcessor_GotoNextContainerNode(
m_pCurChildNode, m_nCurChildNodeStage, m_pFormNode, TRUE);
if (bCreatePage) {
bForceEndPage = TRUE;
bIsManualBreak = TRUE;
if (m_nCurChildNodeStage