| // 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_document_layout_imp.h" |
| |
| #include "xfa/fxfa/fm2js/xfa_fm2jsapi.h" |
| #include "xfa/fxfa/parser/xfa_basic_imp.h" |
| #include "xfa/fxfa/parser/xfa_docdata.h" |
| #include "xfa/fxfa/parser/xfa_doclayout.h" |
| #include "xfa/fxfa/parser/xfa_document.h" |
| #include "xfa/fxfa/parser/xfa_document_datamerger_imp.h" |
| #include "xfa/fxfa/parser/xfa_layout_appadapter.h" |
| #include "xfa/fxfa/parser/xfa_layout_itemlayout.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_script.h" |
| #include "xfa/fxfa/parser/xfa_utils.h" |
| |
| CXFA_LayoutProcessor* CXFA_Document::GetLayoutProcessor() { |
| if (!m_pLayoutProcessor) { |
| m_pLayoutProcessor = new CXFA_LayoutProcessor(this); |
| ASSERT(m_pLayoutProcessor); |
| } |
| return m_pLayoutProcessor; |
| } |
| CXFA_LayoutProcessor* CXFA_Document::GetDocLayout() { |
| return GetLayoutProcessor(); |
| } |
| CXFA_LayoutProcessor::CXFA_LayoutProcessor(CXFA_Document* pDocument) |
| : m_pDocument(pDocument), |
| m_pRootItemLayoutProcessor(NULL), |
| m_pLayoutPageMgr(NULL), |
| m_nProgressCounter(0), |
| m_bNeeLayout(TRUE) {} |
| CXFA_LayoutProcessor::~CXFA_LayoutProcessor() { |
| ClearLayoutData(); |
| } |
| CXFA_Document* CXFA_LayoutProcessor::GetDocument() const { |
| return m_pDocument; |
| } |
| int32_t CXFA_LayoutProcessor::StartLayout(FX_BOOL bForceRestart) { |
| if (!bForceRestart && !IsNeedLayout()) { |
| return 100; |
| } |
| if (m_pRootItemLayoutProcessor) { |
| delete m_pRootItemLayoutProcessor; |
| m_pRootItemLayoutProcessor = NULL; |
| } |
| m_nProgressCounter = 0; |
| CXFA_Node* pFormPacketNode = |
| ToNode(m_pDocument->GetXFAObject(XFA_HASHCODE_Form)); |
| if (!pFormPacketNode) { |
| return -1; |
| } |
| CXFA_Node* pFormRoot = |
| pFormPacketNode->GetFirstChildByClass(XFA_ELEMENT_Subform); |
| if (!pFormRoot) { |
| return -1; |
| } |
| if (!m_pLayoutPageMgr) { |
| m_pLayoutPageMgr = new CXFA_LayoutPageMgr(this); |
| } |
| if (!m_pLayoutPageMgr->InitLayoutPage(pFormRoot)) { |
| return -1; |
| } |
| if (!m_pLayoutPageMgr->PrepareFirstPage(pFormRoot)) { |
| return -1; |
| } |
| m_pRootItemLayoutProcessor = |
| new CXFA_ItemLayoutProcessor(pFormRoot, m_pLayoutPageMgr); |
| m_nProgressCounter = 1; |
| return 0; |
| } |
| int32_t CXFA_LayoutProcessor::DoLayout(IFX_Pause* pPause) { |
| if (m_nProgressCounter < 1) { |
| return -1; |
| } |
| XFA_ItemLayoutProcessorResult eStatus; |
| CXFA_Node* pFormNode = m_pRootItemLayoutProcessor->GetFormNode(); |
| FX_FLOAT fPosX = pFormNode->GetMeasure(XFA_ATTRIBUTE_X).ToUnit(XFA_UNIT_Pt); |
| FX_FLOAT fPosY = pFormNode->GetMeasure(XFA_ATTRIBUTE_Y).ToUnit(XFA_UNIT_Pt); |
| do { |
| FX_FLOAT fAvailHeight = m_pLayoutPageMgr->GetAvailHeight(); |
| eStatus = |
| m_pRootItemLayoutProcessor->DoLayout(TRUE, fAvailHeight, fAvailHeight); |
| if (eStatus != XFA_ItemLayoutProcessorResult_Done) { |
| m_nProgressCounter++; |
| } |
| CXFA_ContentLayoutItem* pLayoutItem = |
| m_pRootItemLayoutProcessor->ExtractLayoutItem(); |
| if (pLayoutItem) { |
| pLayoutItem->m_sPos = CFX_PointF(fPosX, fPosY); |
| } |
| m_pLayoutPageMgr->SubmitContentItem(pLayoutItem, eStatus); |
| } while (eStatus != XFA_ItemLayoutProcessorResult_Done && |
| (!pPause || !pPause->NeedToPauseNow())); |
| if (eStatus == XFA_ItemLayoutProcessorResult_Done) { |
| m_pLayoutPageMgr->FinishPaginatedPageSets(); |
| m_pLayoutPageMgr->SyncLayoutData(); |
| m_bNeeLayout = FALSE; |
| m_rgChangedContainers.RemoveAll(); |
| } |
| return 100 * (eStatus == XFA_ItemLayoutProcessorResult_Done |
| ? m_nProgressCounter |
| : m_nProgressCounter - 1) / |
| m_nProgressCounter; |
| } |
| FX_BOOL CXFA_LayoutProcessor::IncrementLayout() { |
| if (m_bNeeLayout) { |
| StartLayout(TRUE); |
| return DoLayout(NULL) == 100; |
| } |
| for (int32_t i = 0, c = m_rgChangedContainers.GetSize(); i < c; i++) { |
| CXFA_Node* pNode = m_rgChangedContainers[i]; |
| CXFA_Node* pParentNode = |
| pNode->GetNodeItem(XFA_NODEITEM_Parent, XFA_OBJECTTYPE_ContainerNode); |
| if (!pParentNode) { |
| return FALSE; |
| } |
| if (!CXFA_ItemLayoutProcessor::IncrementRelayoutNode(this, pNode, |
| pParentNode)) { |
| return FALSE; |
| } |
| } |
| m_rgChangedContainers.RemoveAll(); |
| return TRUE; |
| } |
| int32_t CXFA_LayoutProcessor::CountPages() const { |
| return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetPageCount() : 0; |
| } |
| CXFA_ContainerLayoutItem* CXFA_LayoutProcessor::GetPage(int32_t index) const { |
| return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetPage(index) : NULL; |
| } |
| CXFA_LayoutItem* CXFA_LayoutProcessor::GetLayoutItem(CXFA_Node* pFormItem) { |
| return static_cast<CXFA_LayoutItem*>( |
| pFormItem->GetUserData(XFA_LAYOUTITEMKEY)); |
| } |
| void CXFA_LayoutProcessor::AddChangedContainer(CXFA_Node* pContainer) { |
| if (m_rgChangedContainers.Find(pContainer) < 0) { |
| m_rgChangedContainers.Add(pContainer); |
| } |
| } |
| CXFA_ContainerLayoutItem* CXFA_LayoutProcessor::GetRootLayoutItem() const { |
| return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetRootLayoutItem() : NULL; |
| } |
| void CXFA_LayoutProcessor::ClearLayoutData() { |
| if (m_pLayoutPageMgr) { |
| delete m_pLayoutPageMgr; |
| m_pLayoutPageMgr = NULL; |
| } |
| if (m_pRootItemLayoutProcessor) { |
| delete m_pRootItemLayoutProcessor; |
| m_pRootItemLayoutProcessor = NULL; |
| } |
| m_nProgressCounter = 0; |
| } |
| FX_BOOL CXFA_LayoutProcessor::IsNeedLayout() { |
| return m_bNeeLayout || m_rgChangedContainers.GetSize() > 0; |
| } |
| CXFA_LayoutItem::CXFA_LayoutItem(CXFA_Node* pNode, FX_BOOL bIsContentLayoutItem) |
| : m_pFormNode(pNode), |
| m_pParent(NULL), |
| m_pNextSibling(NULL), |
| m_pFirstChild(NULL), |
| m_bIsContentLayoutItem(bIsContentLayoutItem) {} |
| CXFA_LayoutItem::~CXFA_LayoutItem() {} |
| CXFA_ContainerLayoutItem::CXFA_ContainerLayoutItem(CXFA_Node* pNode) |
| : CXFA_LayoutItem(pNode, FALSE), m_pOldSubform(NULL) {} |
| CXFA_LayoutProcessor* CXFA_ContainerLayoutItem::GetLayout() const { |
| return m_pFormNode->GetDocument()->GetLayoutProcessor(); |
| } |
| int32_t CXFA_ContainerLayoutItem::GetPageIndex() const { |
| return m_pFormNode->GetDocument() |
| ->GetLayoutProcessor() |
| ->GetLayoutPageMgr() |
| ->GetPageIndex(this); |
| } |
| |
| void CXFA_ContainerLayoutItem::GetPageSize(CFX_SizeF& size) const { |
| size.clear(); |
| CXFA_Node* pMedium = m_pFormNode->GetFirstChildByClass(XFA_ELEMENT_Medium); |
| if (!pMedium) |
| return; |
| |
| size = CFX_SizeF(pMedium->GetMeasure(XFA_ATTRIBUTE_Short).ToUnit(XFA_UNIT_Pt), |
| pMedium->GetMeasure(XFA_ATTRIBUTE_Long).ToUnit(XFA_UNIT_Pt)); |
| if (pMedium->GetEnum(XFA_ATTRIBUTE_Orientation) == |
| XFA_ATTRIBUTEENUM_Landscape) { |
| size = CFX_SizeF(size.y, size.x); |
| } |
| } |
| |
| CXFA_Node* CXFA_ContainerLayoutItem::GetMasterPage() const { |
| return m_pFormNode; |
| } |
| CXFA_ContentLayoutItem::CXFA_ContentLayoutItem(CXFA_Node* pNode) |
| : CXFA_LayoutItem(pNode, TRUE), |
| m_pPrev(NULL), |
| m_pNext(NULL), |
| m_dwStatus(0) {} |
| CXFA_ContentLayoutItem::~CXFA_ContentLayoutItem() { |
| if (m_pFormNode->GetUserData(XFA_LAYOUTITEMKEY) == this) { |
| m_pFormNode->SetUserData(XFA_LAYOUTITEMKEY, NULL); |
| } |
| } |