diff options
Diffstat (limited to 'core/src/reflow/autoreflow.cpp')
| -rw-r--r-- | core/src/reflow/autoreflow.cpp | 777 |
1 files changed, 0 insertions, 777 deletions
diff --git a/core/src/reflow/autoreflow.cpp b/core/src/reflow/autoreflow.cpp deleted file mode 100644 index a5285f375c..0000000000 --- a/core/src/reflow/autoreflow.cpp +++ /dev/null @@ -1,777 +0,0 @@ -// 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 "autoreflow.h" -#define approachto(a,b,c) (FXSYS_fabs((float)((a)-(b)))>(c) ? 0 : 1) -int FPDF_ProcessInterObj(const CPDF_PageObject* pPrevObj, const CPDF_PageObject* pObj) -{ - CFX_AffineMatrix matrix; - FX_RECT PreRect = pPrevObj->GetBBox(&matrix); - FX_RECT rect = pObj->GetBBox(&matrix); - int flag = 0; - if(PreRect.top > rect.bottom) { - flag = 0; - } else if(rect.top > PreRect.bottom) { - flag = 1; - } else if(PreRect.right < rect.left) { - flag = 0; - } else if(PreRect.left > rect.right) { - flag = 1; - } else if(pObj->m_Type != PDFPAGE_TEXT) { - flag = 1; - } else if(pPrevObj->m_Type != PDFPAGE_TEXT) { - flag = 0; - } else { - if((PreRect.top < rect.top && PreRect.bottom > rect.bottom) || - (PreRect.top > rect.top && PreRect.bottom < rect.bottom)) { - if(PreRect.left > rect.left) { - flag = 1; - } else { - flag = 0; - } - } else { - CPDF_TextObject* pPrevTextObj = (CPDF_TextObject* )pPrevObj; - CPDF_TextObject* pTextObj = (CPDF_TextObject* )pObj; - CPDF_TextObjectItem item, prevItem; - pPrevTextObj->GetItemInfo(0, &prevItem); - pTextObj->GetItemInfo(0, &item); - CFX_AffineMatrix TextMatrix; - pTextObj->GetTextMatrix(&TextMatrix); - FX_FLOAT originX, originY, prevOriginX, preOriginY; - TextMatrix.Transform(item.m_OriginX, item.m_OriginY, originX, originY); - pPrevTextObj->GetTextMatrix(&TextMatrix); - TextMatrix.Transform(prevItem.m_OriginX, prevItem.m_OriginY, prevOriginX, preOriginY); - if(preOriginY > originY) { - flag = 0; - } else { - flag = 1; - } - } - } - return flag; -} -void CPDF_AutoReflowLayoutProvider::Conver2AppreceOrder(const CPDF_PageObjects* pStreamOrderObjs, CPDF_PageObjects* pAppraceOrderObjs) -{ - FX_POSITION pos = pStreamOrderObjs->GetFirstObjectPosition(); - CFX_AffineMatrix matrix; - while(pos) { - CPDF_PageObject* pObj = pStreamOrderObjs->GetNextObject(pos); - CFX_AffineMatrix matrix; - if(pObj->m_Type != PDFPAGE_TEXT) { - continue; - } - FX_POSITION pos1 = pAppraceOrderObjs->GetLastObjectPosition(); - while(pos1) { - CPDF_PageObject* pTempObj = pAppraceOrderObjs->GetPrevObject(pos1); - if(FPDF_ProcessInterObj(pObj, pTempObj) == 1) { - if(!pos1) { - pos1 = pAppraceOrderObjs->GetFirstObjectPosition(); - } else { - pAppraceOrderObjs->GetNextObject(pos1); - } - break; - } - } - pAppraceOrderObjs->InsertObject(pos1, pObj); - } - pos = pStreamOrderObjs->GetFirstObjectPosition(); - while(pos) { - CPDF_PageObject* pObj = pStreamOrderObjs->GetNextObject(pos); - if(pObj->m_Type != PDFPAGE_IMAGE) { - continue; - } - FX_POSITION pos1 = pAppraceOrderObjs->GetLastObjectPosition(); - while(pos1) { - CPDF_PageObject* pTempObj = pAppraceOrderObjs->GetPrevObject(pos1); - if(FPDF_ProcessInterObj(pObj, pTempObj) == 1) { - if(!pos1) { - pos1 = pAppraceOrderObjs->GetFirstObjectPosition(); - } else { - pAppraceOrderObjs->GetNextObject(pos1); - } - break; - } - } - pAppraceOrderObjs->InsertObject(pos1, pObj); - } -} -IPDF_LayoutProvider* IPDF_LayoutProvider::Create_LayoutProvider_AutoReflow(CPDF_PageObjects* pPage, FX_BOOL bReadOrder) -{ - return new CPDF_AutoReflowLayoutProvider(pPage, bReadOrder); -} -CPDF_AutoReflowElement::CPDF_AutoReflowElement(LayoutType layoutType , CPDF_AutoReflowElement* pParent) -{ - m_ElmType = layoutType; - m_pParentElm = pParent; - if(pParent) { - pParent->m_ChildArray.Add(this); - } - m_SpaceBefore = 0; -} -CPDF_AutoReflowElement::~CPDF_AutoReflowElement() -{ - m_ChildArray.RemoveAll(); - m_ObjArray.RemoveAll(); -} -int CPDF_AutoReflowElement::CountAttrValues(LayoutAttr attr_type) -{ - return 1; -} -LayoutEnum CPDF_AutoReflowElement::GetEnumAttr(LayoutAttr attr_type, int index ) -{ - return LayoutInvalid; -} -FX_FLOAT CPDF_AutoReflowElement::GetNumberAttr(LayoutAttr attr_type, int index ) -{ - switch (attr_type) { - case LayoutSpaceBefore: - return m_SpaceBefore; - default: - return 0; - } -} -FX_COLORREF CPDF_AutoReflowElement::GetColorAttr(LayoutAttr attr_type, int index ) -{ - return 0; -} -#define WritingMode_UNKNOW 0 -#define WritingMode_LRTB 1 -#define WritingMode_RLTB 2 -#define WritingMode_TBRL 3 -CPDF_AutoReflowLayoutProvider::CPDF_AutoReflowLayoutProvider(CPDF_PageObjects* pPage, FX_BOOL bReadOrder) -{ - m_pPDFPage = (CPDF_Page*)pPage; - FX_FLOAT width = m_pPDFPage->GetPageWidth(); - FX_FLOAT height = m_pPDFPage->GetPageHeight(); - m_pPDFPage->GetDisplayMatrix(m_PDFDisplayMatrix, 0, 0, (int)(m_pPDFPage->GetPageWidth()), (int)(m_pPDFPage->GetPageHeight()), 0); - m_bReadOrder = bReadOrder; - m_Status = LayoutReady; - m_pRoot = NULL; - m_pCurrElm = NULL; - m_pPreObj = NULL; - m_Step = 0; - m_WritingMode = WritingMode_UNKNOW; -} -CPDF_AutoReflowLayoutProvider::~CPDF_AutoReflowLayoutProvider() -{ - m_pPDFPage = NULL; - ReleaseElm(m_pRoot); -} -void CPDF_AutoReflowLayoutProvider::ReleaseElm(CPDF_AutoReflowElement*& pElm, FX_BOOL bReleaseChildren) -{ - if(bReleaseChildren) { - int count = pElm->CountChildren(); - for(int i = 0; i < count; i++) { - CPDF_AutoReflowElement* pChild = (CPDF_AutoReflowElement*)pElm->GetChild(i); - ReleaseElm(pChild); - } - } - delete pElm; - pElm = NULL; -} -void CPDF_AutoReflowLayoutProvider::AddObjectArray(CPDF_AutoReflowElement* pElm, CFX_PtrList& ObjList) -{ - if(!pElm) { - return; - } - FX_POSITION pos = ObjList.GetHeadPosition(); - while (pos) { - pElm->m_ObjArray.Add((CPDF_PageObject*)ObjList.GetNext(pos)); - } -} -void CPDF_AutoReflowLayoutProvider::GenerateStructTree() -{ - if (m_Step < AUTOREFLOW_STEP_GENERATELINE) { - GenerateLine(m_cellArray); - if(m_cellArray.GetSize() == 0) { - m_Status = LayoutError; - return; - } - if(m_pPause && m_pPause->NeedToPauseNow()) { - m_Step = AUTOREFLOW_STEP_GENERATELINE; - m_Status = LayoutToBeContinued; - return; - } - } - if (m_Step < AUTOREFLOW_STEP_GENERATEParagraph) { - GenerateParagraph(m_cellArray); - if(m_pPause && m_pPause->NeedToPauseNow()) { - m_Step = AUTOREFLOW_STEP_GENERATEParagraph; - m_Status = LayoutToBeContinued; - return; - } - } - if (m_Step < AUTOREFLOW_STEP_CREATEELEMENT) { - CreateElement(); - if(m_pPause && m_pPause->NeedToPauseNow()) { - m_Step = AUTOREFLOW_STEP_CREATEELEMENT; - m_Status = LayoutToBeContinued; - return; - } - } - if (m_Step < AUTOREFLOW_STEP_REMOVEDATA) { - int count = m_cellArray.GetSize(); - for(int i = 0; i < count; i++) { - CRF_CELL* pCell = (CRF_CELL*)m_cellArray.GetAt(i); - if(pCell) { - pCell->m_ObjList.RemoveAll(); - delete pCell; - } - } - m_cellArray.RemoveAll(); - if(m_pPause && m_pPause->NeedToPauseNow()) { - m_Step = AUTOREFLOW_STEP_REMOVEDATA; - m_Status = LayoutToBeContinued; - return; - } - } - m_Step = AUTOREFLOW_STEP_REMOVEDATA; - m_Status = LayoutFinished; - return; -} -void CPDF_AutoReflowLayoutProvider::CreateElement() -{ - int count = m_cellArray.GetSize(); - CRF_CELL* plastCell = NULL; - CRF_CELL* pCell = NULL; - CRF_CELL* pNextCell = NULL; - CPDF_AutoReflowElement* pParent = m_pRoot; - CPDF_AutoReflowElement* pCurrElm = NULL; - int i; - for(i = 0; i < count; i++) { - pCell = (CRF_CELL*)m_cellArray.GetAt(i); - if(!pCell) { - continue; - } - if(i < count - 1) { - pNextCell = (CRF_CELL*)m_cellArray.GetAt(i + 1); - } else { - pNextCell = NULL; - } - pCurrElm = new CPDF_AutoReflowElement(LayoutParagraph, pParent); - if(pCurrElm->GetType() == LayoutParagraph && plastCell) { - int SpaceBefore = 0; - if(pCell->m_CellWritingMode != plastCell->m_CellWritingMode ) { - SpaceBefore = 20; - } else if(pCell->m_CellWritingMode == WritingMode_LRTB) { - SpaceBefore = plastCell->m_BBox.bottom - pCell->m_BBox.top; - } else if(pCell->m_CellWritingMode == WritingMode_TBRL) { - SpaceBefore = plastCell->m_BBox.left - pCell->m_BBox.right; - } - if(SpaceBefore > 0) { - pCurrElm->m_SpaceBefore = SpaceBefore > 50 ? 50.0f : SpaceBefore; - } - } - AddObjectArray(pCurrElm, pCell->m_ObjList); - plastCell = pCell; - } -} -void CPDF_AutoReflowLayoutProvider::GenerateParagraph(CFX_PtrArray& cellArray) -{ - int count = cellArray.GetSize(); - if(count <= 1) { - return; - } - CRF_CELL* plastCell = (CRF_CELL*)cellArray.GetAt(0); - if(plastCell->m_BBox.Height() > plastCell->m_BBox.Width()) { - m_WritingMode = WritingMode_TBRL; - } else { - m_WritingMode = WritingMode_LRTB; - } - FX_BOOL bEnforce = FALSE; - int i = 0; - for(i = 1; i < count; i++) { - CRF_CELL* pCell = (CRF_CELL*)cellArray.GetAt(i); - if(!pCell) { - continue; - } - int c = pCell->m_ObjList.GetCount(); - FX_BOOL bMerge = FALSE; - FX_POSITION pos1 = plastCell->m_ObjList.GetTailPosition(); - CPDF_PageObject* pLastObj = (CPDF_PageObject*)plastCell->m_ObjList.GetPrev(pos1); - pos1 = pCell->m_ObjList.GetHeadPosition(); - CPDF_PageObject* pCurObj = (CPDF_PageObject*)pCell->m_ObjList.GetNext(pos1); - int WritingMode = GetRectEnd(pCell->m_BBox); - if(pCell->m_CellWritingMode == WritingMode_UNKNOW) { - if(pCell->m_BBox.Height() > pCell->m_BBox.Width()) { - pCell->m_CellWritingMode = WritingMode_TBRL; - } else { - pCell->m_CellWritingMode = WritingMode_LRTB; - } - } - WritingMode = pCell->m_CellWritingMode; - if(WritingMode == WritingMode_LRTB && (m_Style.m_Language & LP_Lang_ChinesePRC || m_Style.m_Language & LP_Lang_ChineseTaiwan - || m_Style.m_Language & LP_Lang_Japanese || m_Style.m_Language & LP_Lang_Korean)) { - if(pCurObj->m_Type == PDFPAGE_TEXT) { - CPDF_TextObject* pText; - pText = (CPDF_TextObject*)pCurObj; - if(pText->CountItems()) { - CPDF_TextObjectItem item; - pText->GetItemInfo(0, &item); - CFX_WideString str = pText->GetFont()->UnicodeFromCharCode(item.m_CharCode); - FX_WCHAR unicode = str.GetAt(0); - if(unicode == 32) { - plastCell = pCell; - bMerge = FALSE; - bEnforce = FALSE; - continue; - } - } - } - } - if(m_WritingMode == WritingMode) { - if(bEnforce) { - bMerge = FALSE; - bEnforce = FALSE; - if(pCurObj->m_Type == PDFPAGE_TEXT) { - CPDF_TextObject* pText; - pText = (CPDF_TextObject*)pCurObj; - if(pText->CountItems()) { - CPDF_TextObjectItem item; - pText->GetItemInfo(0, &item); - CFX_WideString str = pText->GetFont()->UnicodeFromCharCode(item.m_CharCode); - FX_WCHAR unicode = str.GetAt(0); - if(unicode > 96 && unicode < 123) { - bMerge = TRUE; - } - } - } else { - CPDF_ImageObject* pImage = (CPDF_ImageObject*)pCurObj; - FX_RECT imageBBox = pImage->GetBBox(&m_PDFDisplayMatrix); - if(GetRectEnd(plastCell->m_BBox) - GetRectEnd(pCell->m_BBox) < GetRectWidth(imageBBox)) { - bMerge = TRUE; - } - } - } else { - if(!approachto(GetRectStart(pCell->m_BBox), GetRectStart(plastCell->m_BBox), GetRectHeight(pCell->m_BBox) / 4)) { - if(approachto(GetRectStart(plastCell->m_BBox), GetRectStart(pCell->m_BBox), GetRectHeight(pCell->m_BBox) * 2.3) && - GetRectStart(plastCell->m_BBox) - GetRectStart(pCell->m_BBox) > 0) { - if(pCurObj->m_Type == PDFPAGE_TEXT || pLastObj->m_Type == PDFPAGE_TEXT) { - CPDF_TextObject* pText; - if(pCurObj->m_Type == PDFPAGE_TEXT) { - pText = (CPDF_TextObject*)pCurObj; - } else { - pText = (CPDF_TextObject*)pLastObj; - } - CPDF_TextObjectItem item; - pText->GetItemInfo(0, &item); - CFX_WideString str = pText->GetFont()->UnicodeFromCharCode(item.m_CharCode); - FX_WCHAR unicode = str.GetAt(0); - if(unicode > 255) { - bMerge = TRUE; - } - } - } - } else if(!approachto(GetRectEnd(pCell->m_BBox), GetRectEnd(plastCell->m_BBox), GetRectHeight(pCell->m_BBox) * 3)) { - FX_RECT rect = pLastObj->GetBBox(&m_PDFDisplayMatrix); - if(approachto(GetRectStart(pCell->m_BBox), GetRectStart(plastCell->m_BBox), GetRectHeight(pCell->m_BBox) / 4)) { - if(GetRectEnd(rect) - GetRectEnd(pCell->m_BBox) > 0) { - bMerge = TRUE; - bEnforce = TRUE; - } else if(GetRectEnd(rect) - GetRectEnd(pCell->m_BBox) <= 0 && - GetRectEnd(rect) - GetRectEnd(pCell->m_BBox) > GetRectHeight(pCell->m_BBox) * -3) { - if(pCurObj->m_Type == PDFPAGE_TEXT) { - CPDF_TextObject* pText = (CPDF_TextObject*)pCurObj; - CPDF_TextObjectItem item; - pText->GetItemInfo(0, &item); - CFX_WideString str = pText->GetFont()->UnicodeFromCharCode(item.m_CharCode); - FX_WCHAR unicode = str.GetAt(0); - if(unicode > 96 && unicode < 123) { - bMerge = TRUE; - } - } - } - } - } else { - bMerge = TRUE; - } - } - } else { - m_WritingMode = WritingMode; - bEnforce = FALSE; - } - if(bMerge) { - if(GetRectEnd(plastCell->m_BBox) - GetRectEnd(pCell->m_BBox) > 30) { - bEnforce = TRUE; - } - FX_POSITION pos = pCell->m_ObjList.GetHeadPosition(); - while(pos) { - plastCell->m_ObjList.AddTail(pCell->m_ObjList.GetNext(pos)); - } - plastCell->m_BBox.Union(pCell->m_BBox); - pCell->m_ObjList.RemoveAll(); - delete pCell; - cellArray.RemoveAt(i); - i--; - count--; - } else { - plastCell = pCell; - } - } -} -void CPDF_AutoReflowLayoutProvider::ProcessObj(CFX_PtrArray& cellArray, CPDF_PageObject* pObj, CFX_AffineMatrix matrix) -{ -} -int32_t CPDF_AutoReflowLayoutProvider::LogicPreObj(CPDF_PageObject* pObj) -{ - CPDF_PageObject* pPreObj = m_pPreObj; - m_pPreObj = pObj; - if(!pPreObj) { - return 0; - } - if(pPreObj->m_Type != pObj->m_Type) { - return 0; - } - CFX_FloatRect rcCurObj(pObj->m_Left, pObj->m_Bottom, pObj->m_Right, pObj->m_Top); - CFX_FloatRect rcPreObj(pPreObj->m_Left, pPreObj->m_Bottom, pPreObj->m_Right, pPreObj->m_Top); - if(pObj->m_Type == PDFPAGE_IMAGE) { - if(rcPreObj.Contains(rcCurObj)) { - return 2; - } - if(rcCurObj.Contains(rcPreObj)) { - return 2; - } - return 0; - } - if(pObj->m_Type == PDFPAGE_TEXT) { - if(!((rcPreObj.bottom > rcCurObj.top) || (rcPreObj.top < rcCurObj.bottom))) { - FX_FLOAT height = FX_MIN(rcPreObj.Height(), rcCurObj.Height()); - if((rcCurObj.left - rcPreObj.right) > height / 3) { - return 3; - } - } - if(FXSYS_fabs(rcPreObj.Width() - rcCurObj.Width()) >= 2 || FXSYS_fabs(rcPreObj.Height() - rcCurObj.Height()) >= 2 ) { - return 0; - } - CPDF_TextObject* pPreTextObj = (CPDF_TextObject*)pPreObj; - CPDF_TextObject* pCurTextObj = (CPDF_TextObject*)pObj; - int nPreCount = pPreTextObj->CountItems(); - int nCurCount = pCurTextObj->CountItems(); - if (nPreCount != nCurCount) { - return 0; - } - FX_BOOL bSame = TRUE; - for (int i = 0; i < nPreCount; i++) { - CPDF_TextObjectItem itemPer, itemCur; - pPreTextObj->GetItemInfo(i, &itemPer); - pCurTextObj->GetItemInfo(i, &itemCur); - if (itemCur.m_CharCode != itemPer.m_CharCode) { - return 0; - } - if (itemCur.m_OriginX != itemPer.m_OriginX) { - bSame = FALSE; - } - if (itemCur.m_OriginY != itemPer.m_OriginY) { - bSame = FALSE; - } - } - if(rcPreObj.left == rcCurObj.left && rcPreObj.top == rcCurObj.top) { - return 1; - } - if(FXSYS_fabs(rcPreObj.left - rcCurObj.left) < rcPreObj.Width() / 3 - && FXSYS_fabs(rcPreObj.top - rcCurObj.top) < rcPreObj.Height() / 3) { - return 2; - } - } - return 0; -} -void CPDF_AutoReflowLayoutProvider::GenerateLine(CFX_PtrArray& cellArray) -{ - CRF_CELL* pCell = NULL; - CFX_AffineMatrix matrix; - FX_POSITION pos = m_pPDFPage->GetFirstObjectPosition(); - if(!pos) { - return; - } - FX_FLOAT PDFWidth = m_pPDFPage->GetPageWidth(); - FX_FLOAT PDFHeight = m_pPDFPage->GetPageHeight(); - m_pPDFPage->GetDisplayMatrix(m_PDFDisplayMatrix, 0, 0, (int)PDFWidth, (int)PDFHeight, 0); - CPDF_PageObject* pPerObj = NULL; - int a = 0; - CFX_FloatRect pageBBox = m_pPDFPage->m_BBox; - FX_FLOAT PrevX = 0 , PrevY = 0, PosX, PosY; - while(pos) { - CPDF_PageObject* pObj = m_pPDFPage->GetNextObject(pos); - if(!pObj || pObj->m_Type == PDFPAGE_PATH) { - continue; - } - int logic = LogicPreObj(pObj); - if(logic == 2) { - if(pCell) { - pCell->m_ObjList.SetAt(pCell->m_ObjList.GetTailPosition(), pObj); - } - continue; - } - if (pObj->m_Type == PDFPAGE_TEXT) { - CPDF_TextObject* pTextObj = (CPDF_TextObject*)pObj; - int textmode = pTextObj->m_TextState.GetObject()->m_TextMode; - if(m_Style.m_bIgnoreInvisibleText && pTextObj->m_TextState.GetObject()->m_TextMode == 3) { - continue; - } - PosX = pTextObj->GetPosX(); - PosY = pTextObj->GetPosY(); - m_PDFDisplayMatrix.Transform(PosX, PosY); - } else { - PosX = 0; - PosY = 0; - } - FX_BOOL bNewLine = TRUE; - FX_RECT ObjBBox = pObj->GetBBox(&m_PDFDisplayMatrix); - if(ObjBBox.left > PDFWidth || ObjBBox.right < 0 || - ObjBBox.bottom < 0 || ObjBBox.top > PDFHeight) { - continue; - } - if(ObjBBox.IsEmpty()) { - continue; - } - a++; - if(!pCell) { - bNewLine = TRUE; - m_WritingMode = GetWritingMode(NULL, pObj); - } else { - int WritingMode = GetWritingMode(pPerObj, pObj); - if(m_WritingMode == WritingMode || m_WritingMode == WritingMode_UNKNOW || WritingMode == WritingMode_UNKNOW) { - if(WritingMode != WritingMode_UNKNOW) { - m_WritingMode = WritingMode; - } - if(m_WritingMode == WritingMode_TBRL) { - if(!(GetRectBottom(ObjBBox) > GetRectTop(pCell->m_BBox) || - GetRectTop(ObjBBox) < GetRectBottom(pCell->m_BBox))) { - bNewLine = FALSE; - } - } else { - if(!(GetRectBottom(ObjBBox) < GetRectTop(pCell->m_BBox) || - GetRectTop(ObjBBox) > GetRectBottom(pCell->m_BBox))) { - bNewLine = FALSE; - } - if (pObj->m_Type == PDFPAGE_TEXT) { - if(FXSYS_fabs(PrevY - PosY) < 1 ) { - bNewLine = FALSE; - } - } - } - } else { - m_WritingMode = WritingMode; - } - } - pPerObj = pObj; - if(bNewLine) { - int c = pCell ? pCell->m_ObjList.GetCount() : 0; - pCell = new CRF_CELL; - pCell->m_CellWritingMode = m_WritingMode; - pCell->m_BBox = ObjBBox; - if(pObj->m_Type == PDFPAGE_TEXT) { - FX_FLOAT x = ((CPDF_TextObject*)pObj)->GetPosX(), y = ((CPDF_TextObject*)pObj)->GetPosY(); - m_PDFDisplayMatrix.Transform(x, y); - if(x < ObjBBox.left) { - pCell->m_BBox.left = (int)x; - } - } - pCell->m_ObjList.AddTail(pObj); - cellArray.Add(pCell); - } else { - pCell->m_ObjList.AddTail(pObj); - pCell->m_BBox.Union(ObjBBox); - } - PrevX = PosX; - PrevY = PosY; - } -} -FX_FLOAT CPDF_AutoReflowLayoutProvider::GetLayoutOrderHeight(CPDF_PageObject* pCurObj) -{ - CFX_FloatRect rcCurObj(pCurObj->m_Left, pCurObj->m_Bottom, pCurObj->m_Right, pCurObj->m_Top); - if (m_WritingMode == WritingMode_TBRL) { - return rcCurObj.Width(); - } - return rcCurObj.Height(); -} -FX_FLOAT CPDF_AutoReflowLayoutProvider::GetLayoutOrderWidth(CPDF_PageObject* pCurObj) -{ - CFX_FloatRect rcCurObj(pCurObj->m_Left, pCurObj->m_Bottom, pCurObj->m_Right, pCurObj->m_Top); - if (m_WritingMode == WritingMode_TBRL) { - return rcCurObj.Height(); - } - return rcCurObj.Width(); -} -int CPDF_AutoReflowLayoutProvider:: GetRectWidth(FX_RECT rect) -{ - if(m_WritingMode == WritingMode_TBRL) { - return rect.Height(); - } - return rect.Width(); -} -int CPDF_AutoReflowLayoutProvider:: GetRectHeight(FX_RECT rect) -{ - if(m_WritingMode == WritingMode_TBRL) { - return rect.Width(); - } - return rect.Height(); -} -int CPDF_AutoReflowLayoutProvider:: GetRectStart(FX_RECT rect) -{ - if(m_WritingMode == WritingMode_TBRL) { - return rect.top; - } - return rect.left; -} -int CPDF_AutoReflowLayoutProvider:: GetRectEnd(FX_RECT rect) -{ - if(m_WritingMode == WritingMode_TBRL) { - return rect.bottom; - } - return rect.right; -} -int CPDF_AutoReflowLayoutProvider:: GetRectTop(FX_RECT rect) -{ - if(m_WritingMode == WritingMode_TBRL) { - return rect.right; - } - return rect.top; -} -int CPDF_AutoReflowLayoutProvider:: GetRectBottom(FX_RECT rect) -{ - if(m_WritingMode == WritingMode_TBRL) { - return rect.left; - } - return rect.bottom; -} -int CPDF_AutoReflowLayoutProvider::GetWritingMode(CPDF_PageObject* pPreObj, CPDF_PageObject* pCurObj) -{ - CFX_FloatRect rcCurObj(pCurObj->m_Left, pCurObj->m_Bottom, pCurObj->m_Right, pCurObj->m_Top); - if(pCurObj->m_Type == PDFPAGE_TEXT) { - CPDF_TextObject* ptextObj = (CPDF_TextObject* )pCurObj; - int count = ptextObj->CountItems(); - if(count > 1) { - CPDF_TextObjectItem Item1, Item2; - ptextObj->GetItemInfo(0, &Item1); - ptextObj->GetItemInfo(count - 1, &Item2); - if(Item2.m_CharCode == -1 && count > 2) { - ptextObj->GetItemInfo(2, &Item2); - } - CFX_AffineMatrix textMatrix; - ptextObj->GetTextMatrix(&textMatrix); - textMatrix.Transform(Item1.m_OriginX, Item1.m_OriginY); - textMatrix.Transform(Item2.m_OriginX, Item2.m_OriginY); - FX_FLOAT dx = FXSYS_fabs(Item1.m_OriginX - Item2.m_OriginX); - FX_FLOAT dy = FXSYS_fabs(Item1.m_OriginY - Item2.m_OriginY); - return dx >= dy ? WritingMode_LRTB : WritingMode_TBRL; - } else { - if(m_WritingMode != WritingMode_UNKNOW) { - return m_WritingMode; - } - } - } - if(pPreObj) { - FX_FLOAT threshold = rcCurObj.Width() / 4; - if(m_WritingMode == WritingMode_LRTB) { - if(FXSYS_fabs(pPreObj->m_Bottom - pCurObj->m_Bottom) < threshold * 2 - && FXSYS_fabs(pPreObj->m_Top - pCurObj->m_Top) < threshold * 2) { - return m_WritingMode; - } - FX_FLOAT mid = (pCurObj->m_Bottom + pCurObj->m_Top) / 2; - if(mid > pPreObj->m_Bottom && mid < pPreObj->m_Top && pCurObj->m_Right > pPreObj->m_Right) { - return m_WritingMode; - } - } else if(m_WritingMode == WritingMode_TBRL) { - if(FXSYS_fabs(pPreObj->m_Left - pCurObj->m_Left) < threshold * 2 - && FXSYS_fabs(pPreObj->m_Right - pCurObj->m_Right) < threshold * 2) { - return m_WritingMode; - } - FX_FLOAT mid = (pCurObj->m_Right + pCurObj->m_Left) / 2; - if(mid > pPreObj->m_Left && mid < pPreObj->m_Right && pCurObj->m_Bottom < pPreObj->m_Bottom) { - return m_WritingMode; - } - } - if(FXSYS_fabs(pPreObj->m_Left - pCurObj->m_Left) < threshold && - FXSYS_fabs(pPreObj->m_Bottom - pCurObj->m_Bottom) > threshold * 2) { - return WritingMode_TBRL; - } - if(FXSYS_fabs(pPreObj->m_Left - pCurObj->m_Left) > threshold && - FXSYS_fabs(pPreObj->m_Bottom - pCurObj->m_Bottom) < threshold * 2) { - return WritingMode_LRTB; - } - int count = 0; - if(pPreObj->m_Type == PDFPAGE_TEXT) { - CPDF_TextObject* ptextObj = (CPDF_TextObject* )pCurObj; - count = ptextObj->CountItems(); - } - if(pPreObj->m_Type != PDFPAGE_TEXT || count == 1) { - if(pCurObj->m_Left > pPreObj->m_Right) { - FX_FLOAT mid = (pCurObj->m_Top + pCurObj->m_Bottom) / 2; - if(mid < pPreObj->m_Top && mid > pPreObj->m_Bottom) { - return WritingMode_LRTB; - } - } - if(pCurObj->m_Top < pPreObj->m_Bottom) { - FX_FLOAT mid = (pCurObj->m_Left + pCurObj->m_Right) / 2; - if(mid < pPreObj->m_Right && mid > pPreObj->m_Left) { - return WritingMode_TBRL; - } - } - } - } - return WritingMode_UNKNOW; -} -LayoutStatus CPDF_AutoReflowLayoutProvider::StartLoad(IFX_Pause* pPause) -{ - m_pPause = pPause; - m_pRoot = new CPDF_AutoReflowElement(LayoutDocument); - m_Step = 0; - return Continue(); -} -LayoutStatus CPDF_AutoReflowLayoutProvider::Continue() -{ - GenerateStructTree(); - return m_Status; -} -int CPDF_AutoReflowLayoutProvider::GetPosition() -{ - if(m_Step == 0) { - return 0; - } else { - return m_Step * 100 / AUTOREFLOW_STEP_REMOVEDATA; - } -} -FX_FLOAT CPDF_AutoReflowLayoutProvider::GetObjMinCell(CPDF_PageObject* pObj) -{ - if(!pObj) { - return 0; - } - if(pObj->m_Type != PDFPAGE_TEXT) { - CFX_AffineMatrix matrix; - FX_RECT rect = pObj->GetBBox(&matrix); - return (FX_FLOAT)(rect.Width()); - } - CPDF_TextObject* pTextObj = (CPDF_TextObject* )pObj; - int count = pTextObj->CountItems(); - for(int i = 0; i < count; i++) { - CPDF_TextObjectItem Item; - pTextObj->GetItemInfo(i, &Item); - if(Item.m_CharCode == -1) { - continue; - } - if((Item.m_CharCode > 47 && Item.m_CharCode < 58) || (Item.m_CharCode > 64 && Item.m_CharCode < 91) - || (Item.m_CharCode > 96 && Item.m_CharCode < 123)) { - continue; - } - if(Item.m_CharCode > 127 || (Item.m_CharCode > 32 && Item.m_CharCode < 35) || Item.m_CharCode == 37 || - (Item.m_CharCode > 38 && Item.m_CharCode < 42) || Item.m_CharCode == 44 || Item.m_CharCode == 46 || - Item.m_CharCode == 58 || Item.m_CharCode == 59 || Item.m_CharCode == 63 || Item.m_CharCode == 93) { - if(i == count - 1) { - CFX_AffineMatrix matrix; - FX_RECT rect = pObj->GetBBox(&matrix); - return (FX_FLOAT)(rect.Width()); - } else { - pTextObj->GetItemInfo(i + 1, &Item); - return Item.m_OriginX; - } - } - return Item.m_OriginX; - } - CFX_AffineMatrix matrix; - FX_RECT rect = pObj->GetBBox(&matrix); - return (FX_FLOAT)(rect.Width()); -} |