| // 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 "../../../include/fpdfapi/fpdf_page.h" | |
| #include "../../../include/fpdfapi/fpdf_module.h" | |
| #include "pageint.h" | |
| #if defined(_FPDFAPI_MINI_) | |
| extern const FX_LPCSTR _PDF_CharType; | |
| void CPDF_StreamContentParser::InputData(FX_LPCBYTE src_buf, FX_DWORD src_size) | |
| { | |
| if (m_Level > _FPDF_MAX_FORM_LEVEL_) { | |
| return; | |
| } | |
| for (FX_DWORD i = 0; i < src_size; i ++) { | |
| int ch = src_buf[i]; | |
| int type = _PDF_CharType[ch]; | |
| start: | |
| switch (m_WordState) { | |
| case 0: | |
| if (type == 'W') { | |
| } else if (type == 'N') { | |
| m_WordState = 5; | |
| m_pWordBuf[0] = ch; | |
| m_WordSize = 1; | |
| } else if (type == 'R') { | |
| m_WordState = 4; | |
| m_pWordBuf[0] = ch; | |
| m_WordSize = 1; | |
| } else switch (ch) { | |
| case '/': | |
| m_WordState = 2; | |
| m_WordSize = 0; | |
| break; | |
| case '[': | |
| StartArray(); | |
| break; | |
| case ']': | |
| EndArray(); | |
| break; | |
| case '(': | |
| m_WordState = 7; | |
| m_StringLevel = 1; | |
| m_StringState = 0; | |
| m_StringBuf.Clear(); | |
| break; | |
| case '<': | |
| m_WordState = 3; | |
| break; | |
| case '>': | |
| m_WordState = 8; | |
| break; | |
| case '%': | |
| m_WordState = 1; | |
| break; | |
| } | |
| break; | |
| case 1: | |
| if (ch == '\n' || ch == '\r') { | |
| m_WordState = 0; | |
| } | |
| break; | |
| case 2: | |
| if (type != 'R' && type != 'N') { | |
| EndName(); | |
| m_WordState = 0; | |
| goto start; | |
| } | |
| if (m_WordSize < 256) { | |
| m_pWordBuf[m_WordSize++] = ch; | |
| } | |
| break; | |
| case 3: | |
| if (ch == '<') { | |
| StartDict(); | |
| m_WordState = 0; | |
| } else { | |
| m_StringBuf.Clear(); | |
| m_WordState = 6; | |
| goto start; | |
| } | |
| break; | |
| case 4: | |
| if (type != 'R' && type != 'N') { | |
| m_WordState = 0; | |
| EndKeyword(); | |
| if (m_bAbort) { | |
| return; | |
| } | |
| goto start; | |
| } | |
| if (m_WordSize < 256) { | |
| m_pWordBuf[m_WordSize++] = ch; | |
| } | |
| break; | |
| case 5: | |
| if (type != 'N') { | |
| EndNumber(); | |
| m_WordState = 0; | |
| goto start; | |
| } | |
| if (m_WordSize < 256) { | |
| m_pWordBuf[m_WordSize++] = ch; | |
| } | |
| break; | |
| case 6: | |
| if (ch == '>') { | |
| EndHexString(); | |
| m_WordState = 0; | |
| } else { | |
| m_StringBuf.AppendByte(ch); | |
| } | |
| break; | |
| case 7: | |
| switch (m_StringState) { | |
| case 0: | |
| if (ch == ')') { | |
| m_StringLevel --; | |
| if (m_StringLevel == 0) { | |
| EndString(); | |
| m_WordState = 0; | |
| break; | |
| } | |
| m_StringBuf.AppendByte(')'); | |
| } else if (ch == '(') { | |
| m_StringLevel ++; | |
| m_StringBuf.AppendByte('('); | |
| } else if (ch == '\\') { | |
| m_StringState = 1; | |
| } else { | |
| m_StringBuf.AppendByte((char)ch); | |
| } | |
| break; | |
| case 1: | |
| if (ch >= '0' && ch <= '7') { | |
| m_EscCode = ch - '0'; | |
| m_StringState = 2; | |
| break; | |
| } | |
| if (ch == 'n') { | |
| m_StringBuf.AppendByte('\n'); | |
| } else if (ch == 'r') { | |
| m_StringBuf.AppendByte('\r'); | |
| } else if (ch == 't') { | |
| m_StringBuf.AppendByte('\t'); | |
| } else if (ch == 'b') { | |
| m_StringBuf.AppendByte('\b'); | |
| } else if (ch == 'f') { | |
| m_StringBuf.AppendByte('\f'); | |
| } else if (ch == '\\') { | |
| m_StringBuf.AppendByte('\\'); | |
| } else if (ch == '(') { | |
| m_StringBuf.AppendByte('('); | |
| } else if (ch == ')') { | |
| m_StringBuf.AppendByte(')'); | |
| } else if (ch == '\r') { | |
| m_StringState = 4; | |
| break; | |
| } else if (ch == '\n') { | |
| } else { | |
| m_StringBuf.AppendByte(ch); | |
| } | |
| m_StringState = 0; | |
| break; | |
| case 2: | |
| if (ch >= '0' && ch <= '7') { | |
| m_EscCode = m_EscCode * 8 + ch - '0'; | |
| m_StringState = 3; | |
| } else { | |
| m_StringBuf.AppendByte(m_EscCode); | |
| m_StringState = 0; | |
| goto start; | |
| } | |
| break; | |
| case 3: | |
| if (ch >= '0' && ch <= '7') { | |
| m_EscCode = m_EscCode * 8 + ch - '0'; | |
| m_StringBuf.AppendByte(m_EscCode); | |
| m_StringState = 0; | |
| } else { | |
| m_StringBuf.AppendByte(m_EscCode); | |
| m_StringState = 0; | |
| goto start; | |
| } | |
| break; | |
| case 4: | |
| m_StringState = 0; | |
| if (ch != '\n') { | |
| goto start; | |
| } | |
| break; | |
| } | |
| break; | |
| case 8: | |
| m_WordState = 0; | |
| if (ch == '>') { | |
| EndDict(); | |
| } else { | |
| goto start; | |
| } | |
| break; | |
| case 9: | |
| switch (m_InlineImageState) { | |
| case 0: | |
| if (type == 'W' || type == 'D') { | |
| m_InlineImageState = 1; | |
| m_InlineWhiteChar = ch; | |
| } else { | |
| m_StringBuf.AppendByte(ch); | |
| } | |
| break; | |
| case 1: | |
| m_StringBuf.AppendByte(m_InlineWhiteChar); | |
| if (ch == 'I') { | |
| m_InlineImageState = 2; | |
| } else { | |
| m_InlineImageState = 0; | |
| goto start; | |
| } | |
| break; | |
| case 2: | |
| if (ch == 'D') { | |
| m_InlineImageState = 3; | |
| } else { | |
| m_StringBuf.AppendByte('I'); | |
| m_InlineImageState = 0; | |
| goto start; | |
| } | |
| break; | |
| case 3: | |
| EndImageDict(); | |
| break; | |
| } | |
| break; | |
| case 10: | |
| switch (m_InlineImageState) { | |
| case 0: | |
| if (type == 'W') { | |
| m_InlineImageState = 1; | |
| m_InlineWhiteChar = ch; | |
| } else { | |
| m_ImageSrcBuf.AppendByte(ch); | |
| } | |
| break; | |
| case 1: | |
| if (ch == 'E') { | |
| m_InlineImageState = 2; | |
| } else { | |
| m_ImageSrcBuf.AppendByte(m_InlineWhiteChar); | |
| m_InlineImageState = 0; | |
| goto start; | |
| } | |
| break; | |
| case 2: | |
| if (ch == 'I') { | |
| m_InlineImageState = 3; | |
| } else { | |
| m_ImageSrcBuf.AppendByte(m_InlineWhiteChar); | |
| m_ImageSrcBuf.AppendByte('E'); | |
| m_InlineImageState = 0; | |
| goto start; | |
| } | |
| break; | |
| case 3: | |
| if (type == 'W') { | |
| EndInlineImage(); | |
| } else { | |
| m_ImageSrcBuf.AppendByte(m_InlineWhiteChar); | |
| m_ImageSrcBuf.AppendByte('E'); | |
| m_ImageSrcBuf.AppendByte('I'); | |
| m_InlineImageState = 0; | |
| goto start; | |
| } | |
| break; | |
| } | |
| break; | |
| case 11: | |
| if (m_InlineImageState < m_ImageSrcBuf.GetSize()) { | |
| m_ImageSrcBuf.GetBuffer()[m_InlineImageState ++] = ch; | |
| } else { | |
| if (ch == 'I') { | |
| EndInlineImage(); | |
| } | |
| } | |
| break; | |
| } | |
| } | |
| } | |
| void CPDF_StreamContentParser::Finish() | |
| { | |
| switch (m_WordState) { | |
| case 0: | |
| break; | |
| case 1: | |
| break; | |
| case 2: | |
| EndName(); | |
| break; | |
| case 3: | |
| break; | |
| case 4: | |
| EndKeyword(); | |
| break; | |
| case 5: | |
| EndNumber(); | |
| break; | |
| case 6: | |
| EndHexString(); | |
| break; | |
| case 7: | |
| EndString(); | |
| break; | |
| case 8: | |
| break; | |
| case 9: | |
| break; | |
| case 10: | |
| EndInlineImage(); | |
| break; | |
| } | |
| m_WordState = 0; | |
| } | |
| void CPDF_StreamContentParser::AddContainer(CPDF_Object* pObject) | |
| { | |
| if (m_ObjectSize) { | |
| m_pObjectState[m_ObjectSize] = SetToCurObj(pObject); | |
| } | |
| FXSYS_assert(m_ObjectSize < _FPDF_MAX_OBJECT_STACK_SIZE_); | |
| m_pObjectStack[m_ObjectSize++] = pObject; | |
| } | |
| FX_BOOL CPDF_StreamContentParser::SetToCurObj(CPDF_Object* pObject) | |
| { | |
| if (m_ObjectSize == 0) { | |
| AddObjectParam(pObject); | |
| return TRUE; | |
| } | |
| FX_BOOL bInArrayOrDict = TRUE; | |
| CPDF_Object* pCurObj = m_pObjectStack[m_ObjectSize - 1]; | |
| if (pCurObj->GetType() == PDFOBJ_ARRAY) { | |
| ((CPDF_Array*)pCurObj)->Add(pObject, m_pDocument); | |
| } else { | |
| if (!m_bDictName && m_pDictName[0]) { | |
| ((CPDF_Dictionary*)pCurObj)->SetAt((FX_LPCSTR)m_pDictName, pObject, m_pDocument); | |
| } else { | |
| bInArrayOrDict = FALSE; | |
| } | |
| m_bDictName = TRUE; | |
| } | |
| return bInArrayOrDict; | |
| } | |
| void CPDF_StreamContentParser::StartArray() | |
| { | |
| if (m_ObjectSize) | |
| if (m_pObjectStack[0]->GetType() != PDFOBJ_DICTIONARY && m_pObjectStack[m_ObjectSize - 1]->GetType() == PDFOBJ_ARRAY) { | |
| return; | |
| } | |
| CPDF_Array* pArray = FX_NEW CPDF_Array; | |
| AddContainer(pArray); | |
| } | |
| void CPDF_StreamContentParser::EndArray() | |
| { | |
| if (m_ObjectSize == 0) { | |
| return; | |
| } | |
| CPDF_Object* pCurObj = m_pObjectStack[m_ObjectSize - 1]; | |
| if (pCurObj->GetType() != PDFOBJ_ARRAY) { | |
| return; | |
| } | |
| m_ObjectSize --; | |
| if (m_ObjectSize == 0) { | |
| AddObjectParam(pCurObj); | |
| } else { | |
| if (!m_pObjectState[m_ObjectSize]) { | |
| pCurObj->Release(); | |
| } | |
| } | |
| m_pObjectState[m_ObjectSize] = FALSE; | |
| } | |
| void CPDF_StreamContentParser::StartDict() | |
| { | |
| CPDF_Dictionary* pDict = FX_NEW CPDF_Dictionary; | |
| AddContainer(pDict); | |
| m_bDictName = TRUE; | |
| } | |
| void CPDF_StreamContentParser::EndDict() | |
| { | |
| if (m_ObjectSize == 0) { | |
| return; | |
| } | |
| CPDF_Object* pCurObj = m_pObjectStack[m_ObjectSize - 1]; | |
| if (pCurObj->GetType() != PDFOBJ_DICTIONARY) { | |
| return; | |
| } | |
| m_ObjectSize --; | |
| if (m_ObjectSize == 0) { | |
| AddObjectParam(pCurObj); | |
| } else { | |
| if (!m_pObjectState[m_ObjectSize]) { | |
| pCurObj->Release(); | |
| } | |
| } | |
| m_pObjectState[m_ObjectSize] = FALSE; | |
| } | |
| void CPDF_StreamContentParser::EndName() | |
| { | |
| if (m_ObjectSize == 0) { | |
| AddNameParam((FX_LPCSTR)m_pWordBuf, m_WordSize); | |
| return; | |
| } | |
| CPDF_Object* pCurObj = m_pObjectStack[m_ObjectSize - 1]; | |
| if (pCurObj->GetType() == PDFOBJ_ARRAY) { | |
| ((CPDF_Array*)pCurObj)->AddName(CFX_ByteString(m_pWordBuf, m_WordSize)); | |
| } else { | |
| if (m_bDictName) { | |
| FXSYS_memcpy32(m_pDictName, m_pWordBuf, m_WordSize); | |
| m_pDictName[m_WordSize] = 0; | |
| } else { | |
| if (m_pDictName[0] != 0) { | |
| ((CPDF_Dictionary*)pCurObj)->SetAtName((FX_LPCSTR)m_pDictName, CFX_ByteString(m_pWordBuf, m_WordSize)); | |
| } | |
| } | |
| m_bDictName = !m_bDictName; | |
| } | |
| } | |
| void CPDF_StreamContentParser::EndNumber() | |
| { | |
| if (m_ObjectSize == 0) { | |
| AddNumberParam((FX_LPCSTR)m_pWordBuf, m_WordSize); | |
| return; | |
| } | |
| CPDF_Number *pObj = FX_NEW CPDF_Number(CFX_ByteStringC(m_pWordBuf, m_WordSize)); | |
| if (!SetToCurObj(pObj)) { | |
| pObj->Release(); | |
| } | |
| } | |
| extern CFX_ByteString _FPDF_ByteStringFromHex(CFX_BinaryBuf& src_buf); | |
| void CPDF_StreamContentParser::EndHexString() | |
| { | |
| CPDF_String *pObj = FX_NEW CPDF_String(_FPDF_ByteStringFromHex(m_StringBuf), TRUE); | |
| if (!SetToCurObj(pObj)) { | |
| pObj->Release(); | |
| } | |
| } | |
| void CPDF_StreamContentParser::EndString() | |
| { | |
| CPDF_String *pObj = FX_NEW CPDF_String(m_StringBuf.GetByteString()); | |
| if (!SetToCurObj(pObj)) { | |
| pObj->Release(); | |
| } | |
| } | |
| void CPDF_StreamContentParser::Handle_BeginImage(void) | |
| { | |
| m_WordState = 9; | |
| m_InlineImageState = 0; | |
| m_StringBuf.Clear(); | |
| } | |
| void _PDF_ReplaceAbbr(CPDF_Object* pObj); | |
| void CPDF_StreamContentParser::EndImageDict() | |
| { | |
| if (m_StringBuf.GetSize() != m_LastImageDict.GetSize() || | |
| FXSYS_memcmp32(m_StringBuf.GetBuffer(), m_LastImageDict.GetBuffer(), m_StringBuf.GetSize())) { | |
| m_WordState = 0; | |
| StartDict(); | |
| InputData(m_StringBuf.GetBuffer(), m_StringBuf.GetSize()); | |
| Finish(); | |
| m_bSameLastDict = FALSE; | |
| if (m_pLastImageDict && m_bReleaseLastDict) { | |
| m_pLastImageDict->Release(); | |
| m_pLastImageDict = NULL; | |
| } | |
| if (!m_ObjectSize) { | |
| m_InlineImageState = 0; | |
| return; | |
| } | |
| m_pLastImageDict = (CPDF_Dictionary*)m_pObjectStack[--m_ObjectSize]; | |
| m_bReleaseLastDict = !m_pObjectState[m_ObjectSize]; | |
| m_pObjectState[m_ObjectSize] = FALSE; | |
| _PDF_ReplaceAbbr(m_pLastImageDict); | |
| m_LastImageDict.TakeOver(m_StringBuf); | |
| if (m_pLastImageDict->KeyExist(FX_BSTRC("ColorSpace"))) { | |
| CPDF_Object* pCSObj = m_pLastImageDict->GetElementValue(FX_BSTRC("ColorSpace")); | |
| if (pCSObj->GetType() == PDFOBJ_NAME) { | |
| CFX_ByteString name = pCSObj->GetString(); | |
| if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) { | |
| pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name); | |
| if (pCSObj) { | |
| if (!pCSObj->GetObjNum()) { | |
| pCSObj = pCSObj->Clone(); | |
| } | |
| m_pLastImageDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument); | |
| } | |
| } | |
| } | |
| } | |
| } else { | |
| m_bSameLastDict = TRUE; | |
| } | |
| m_ImageSrcBuf.Clear(); | |
| if (m_pLastCloneImageDict) { | |
| m_pLastCloneImageDict->Release(); | |
| } | |
| m_pLastCloneImageDict = (CPDF_Dictionary*)m_pLastImageDict->Clone(); | |
| if (m_pLastCloneImageDict->KeyExist(FX_BSTRC("Filter"))) { | |
| m_WordState = 10; | |
| m_InlineImageState = 0; | |
| } else { | |
| int width = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Width")); | |
| int height = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Height")); | |
| int OrigSize = 0; | |
| CPDF_Object* pCSObj = m_pLastCloneImageDict->GetElementValue(FX_BSTRC("ColorSpace")); | |
| if (pCSObj != NULL) { | |
| int bpc = m_pLastCloneImageDict->GetInteger(FX_BSTRC("BitsPerComponent")); | |
| int nComponents = 1; | |
| CPDF_ColorSpace* pCS = m_pDocument->LoadColorSpace(pCSObj); | |
| if (pCS == NULL) { | |
| nComponents = 3; | |
| } else { | |
| nComponents = pCS->CountComponents(); | |
| m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj); | |
| } | |
| int pitch = (width * bpc * nComponents + 7) / 8; | |
| OrigSize = pitch * height; | |
| } else { | |
| OrigSize = ((width + 7) / 8) * height; | |
| } | |
| m_ImageSrcBuf.AppendBlock(NULL, OrigSize); | |
| m_WordState = 11; | |
| m_InlineImageState = 0; | |
| } | |
| } | |
| void CPDF_StreamContentParser::EndInlineImage() | |
| { | |
| CFX_AffineMatrix ImageMatrix; | |
| ImageMatrix.Copy(m_pCurStates->m_CTM); | |
| ImageMatrix.Concat(m_mtContentToUser); | |
| m_LastImageData.CopyData(m_ImageSrcBuf.GetBuffer(), m_ImageSrcBuf.GetSize()); | |
| CPDF_Stream* pStream = CPDF_Stream::Create(m_ImageSrcBuf.GetBuffer(), m_ImageSrcBuf.GetSize(), | |
| m_pLastCloneImageDict); | |
| m_ImageSrcBuf.DetachBuffer(); | |
| m_pLastCloneImageDict = NULL; | |
| CPDF_InlineImages* pImages = FX_NEW CPDF_InlineImages; | |
| pImages->m_pStream = pStream; | |
| SetGraphicStates(pImages, !m_pLastCloneImageDict->KeyExist(FX_BSTRC("ColorSpace")), FALSE, FALSE); | |
| pImages->AddMatrix(ImageMatrix); | |
| m_pObjectList->m_ObjectList.AddTail(pImages); | |
| m_WordState = 0; | |
| } | |
| #define FXDWORD_TRUE FXDWORD_FROM_LSBFIRST(0x65757274) | |
| #define FXDWORD_NULL FXDWORD_FROM_LSBFIRST(0x6c6c756e) | |
| #define FXDWORD_FALS FXDWORD_FROM_LSBFIRST(0x736c6166) | |
| void CPDF_StreamContentParser::EndKeyword() | |
| { | |
| CPDF_Object *pObj = NULL; | |
| if (m_WordSize == 4) { | |
| if (*(FX_DWORD*)m_pWordBuf == FXDWORD_TRUE) { | |
| pObj = CPDF_Boolean::Create(TRUE); | |
| if (!SetToCurObj(pObj)) { | |
| pObj->Release(); | |
| } | |
| return; | |
| } else if (*(FX_DWORD*)m_pWordBuf == FXDWORD_NULL) { | |
| pObj = CPDF_Null::Create(); | |
| if (!SetToCurObj(pObj)) { | |
| pObj->Release(); | |
| } | |
| return; | |
| } | |
| } else if (m_WordSize == 5) { | |
| if (*(FX_DWORD*)m_pWordBuf == FXDWORD_FALS && m_pWordBuf[4] == 'e') { | |
| pObj = CPDF_Boolean::Create(FALSE); | |
| if (!SetToCurObj(pObj)) { | |
| pObj->Release(); | |
| } | |
| return; | |
| } | |
| } | |
| m_pWordBuf[m_WordSize] = 0; | |
| OnOperator((char*)m_pWordBuf); | |
| ClearAllParams(); | |
| } | |
| #define PAGEPARSE_STAGE_PARSE 2 | |
| #define PAGEPARSE_STAGE_CHECKCLIP 3 | |
| CPDF_ContentParser::CPDF_ContentParser() | |
| { | |
| m_pParser = NULL; | |
| m_Status = Ready; | |
| m_pStreamFilter = NULL; | |
| m_pType3Char = NULL; | |
| } | |
| CPDF_ContentParser::~CPDF_ContentParser() | |
| { | |
| Clear(); | |
| } | |
| void CPDF_ContentParser::Clear() | |
| { | |
| if (m_pParser) { | |
| delete m_pParser; | |
| } | |
| if (m_pStreamFilter) { | |
| delete m_pStreamFilter; | |
| } | |
| m_pParser = NULL; | |
| m_Status = Ready; | |
| } | |
| void CPDF_ContentParser::Start(CPDF_Page* pPage, CPDF_ParseOptions* pOptions) | |
| { | |
| if (m_Status != Ready || pPage == NULL || pPage->m_pDocument == NULL || pPage->m_pFormDict == NULL) { | |
| m_Status = Done; | |
| return; | |
| } | |
| m_pObjects = pPage; | |
| m_bForm = FALSE; | |
| if (pOptions) { | |
| m_Options = *pOptions; | |
| } | |
| CPDF_Object* pContent = pPage->m_pFormDict->GetElementValue(FX_BSTRC("Contents")); | |
| if (pContent == NULL) { | |
| m_Status = Done; | |
| return; | |
| } | |
| if (pContent->GetType() == PDFOBJ_STREAM) { | |
| m_nStreams = 1; | |
| } else if (pContent->GetType() == PDFOBJ_ARRAY) { | |
| m_nStreams = ((CPDF_Array*)pContent)->GetCount(); | |
| } else { | |
| m_Status = Done; | |
| return; | |
| } | |
| m_Status = ToBeContinued; | |
| m_InternalStage = PAGEPARSE_STAGE_PARSE; | |
| m_CurrentOffset = 0; | |
| m_pParser = FX_NEW CPDF_StreamContentParser; | |
| m_pParser->Initialize(); | |
| m_pParser->PrepareParse(pPage->m_pDocument, pPage->m_pResources, NULL, NULL, pPage, | |
| pPage->m_pResources, &pPage->m_BBox, &m_Options, NULL, 0); | |
| m_pParser->m_pCurStates->m_ColorState.GetModify()->Default(); | |
| } | |
| void CPDF_ContentParser::Start(CPDF_Form* pForm, CPDF_AllStates* pGraphicStates, CFX_AffineMatrix* pParentMatrix, | |
| CPDF_Type3Char* pType3Char, CPDF_ParseOptions* pOptions, int level) | |
| { | |
| m_pType3Char = pType3Char; | |
| m_pObjects = pForm; | |
| m_bForm = TRUE; | |
| CFX_AffineMatrix form_matrix = pForm->m_pFormDict->GetMatrix(FX_BSTRC("Matrix")); | |
| if (pGraphicStates) { | |
| form_matrix.Concat(pGraphicStates->m_CTM); | |
| } | |
| CPDF_Array* pBBox = pForm->m_pFormDict->GetArray(FX_BSTRC("BBox")); | |
| CFX_FloatRect form_bbox; | |
| CPDF_Path ClipPath; | |
| if (pBBox) { | |
| form_bbox = pBBox->GetRect(); | |
| ClipPath.New(); | |
| ClipPath.AppendRect(form_bbox.left, form_bbox.bottom, form_bbox.right, form_bbox.top); | |
| ClipPath.Transform(&form_matrix); | |
| if (pParentMatrix) { | |
| ClipPath.Transform(pParentMatrix); | |
| } | |
| form_bbox.Transform(&form_matrix); | |
| } | |
| CPDF_Dictionary* pResources = pForm->m_pFormDict->GetDict(FX_BSTRC("Resources")); | |
| m_pParser = FX_NEW CPDF_StreamContentParser; | |
| m_pParser->Initialize(); | |
| m_pParser->PrepareParse(pForm->m_pDocument, pForm->m_pPageResources, pForm->m_pResources, pParentMatrix, pForm, | |
| pResources, &form_bbox, pOptions, pGraphicStates, level); | |
| m_pParser->m_pCurStates->m_CTM = form_matrix; | |
| if (ClipPath.NotNull()) { | |
| m_pParser->m_pCurStates->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING, TRUE); | |
| } | |
| if (pForm->m_Transparency & PDFTRANS_GROUP) { | |
| CPDF_GeneralStateData* pData = m_pParser->m_pCurStates->m_GeneralState.GetModify(); | |
| pData->m_BlendType = FXDIB_BLEND_NORMAL; | |
| pData->m_StrokeAlpha = 1.0f; | |
| pData->m_FillAlpha = 1.0f; | |
| pData->m_pSoftMask = NULL; | |
| } | |
| m_pStreamFilter = pForm->m_pFormStream->GetStreamFilter(); | |
| m_nStreams = 1; | |
| m_Status = ToBeContinued; | |
| m_InternalStage = PAGEPARSE_STAGE_PARSE; | |
| m_CurrentOffset = 0; | |
| } | |
| void CPDF_ContentParser::Continue(IFX_Pause* pPause) | |
| { | |
| while (m_Status == ToBeContinued) { | |
| if (m_InternalStage == PAGEPARSE_STAGE_PARSE) { | |
| if (m_pStreamFilter == NULL) { | |
| if (m_CurrentOffset == m_nStreams) { | |
| m_InternalStage = PAGEPARSE_STAGE_CHECKCLIP; | |
| if (m_pType3Char) { | |
| m_pType3Char->m_bColored = m_pParser->m_bColored; | |
| m_pType3Char->m_Width = FXSYS_round(m_pParser->m_Type3Data[0] * 1000); | |
| m_pType3Char->m_BBox.left = FXSYS_round(m_pParser->m_Type3Data[2] * 1000); | |
| m_pType3Char->m_BBox.bottom = FXSYS_round(m_pParser->m_Type3Data[3] * 1000); | |
| m_pType3Char->m_BBox.right = FXSYS_round(m_pParser->m_Type3Data[4] * 1000); | |
| m_pType3Char->m_BBox.top = FXSYS_round(m_pParser->m_Type3Data[5] * 1000); | |
| m_pType3Char->m_bPageRequired = m_pParser->m_bResourceMissing; | |
| } | |
| delete m_pParser; | |
| m_pParser = NULL; | |
| continue; | |
| } | |
| CPDF_Object* pContent = m_pObjects->m_pFormDict->GetElementValue(FX_BSTRC("Contents")); | |
| if (pContent->GetType() == PDFOBJ_STREAM) { | |
| m_pStreamFilter = ((CPDF_Stream*)pContent)->GetStreamFilter(); | |
| } else { | |
| CPDF_Stream* pStream = ((CPDF_Array*)pContent)->GetStream(m_CurrentOffset); | |
| if (pStream == NULL) { | |
| m_CurrentOffset ++; | |
| continue; | |
| } | |
| m_pStreamFilter = pStream->GetStreamFilter(); | |
| } | |
| } | |
| FX_DWORD len = m_pStreamFilter->ReadBlock(m_pParser->m_pStreamBuf, STREAM_PARSE_BUFSIZE); | |
| m_pParser->InputData(m_pParser->m_pStreamBuf, len); | |
| if (m_pParser->m_bAbort) { | |
| delete m_pStreamFilter; | |
| m_pStreamFilter = NULL; | |
| m_Status = Done; | |
| delete m_pParser; | |
| m_pParser = NULL; | |
| return; | |
| } | |
| if (len < STREAM_PARSE_BUFSIZE) { | |
| m_pParser->Finish(); | |
| m_CurrentOffset ++; | |
| delete m_pStreamFilter; | |
| m_pStreamFilter = NULL; | |
| } | |
| if (pPause && pPause->NeedToPauseNow()) { | |
| return; | |
| } | |
| } | |
| if (m_InternalStage == PAGEPARSE_STAGE_CHECKCLIP) { | |
| FX_POSITION pos = m_pObjects->m_ObjectList.GetHeadPosition(); | |
| while (pos) { | |
| CPDF_PageObject* pObj = (CPDF_PageObject*)m_pObjects->m_ObjectList.GetNext(pos); | |
| if (pObj == NULL) { | |
| continue; | |
| } | |
| if (pObj->m_ClipPath.IsNull()) { | |
| continue; | |
| } | |
| if (pObj->m_ClipPath.GetPathCount() != 1) { | |
| continue; | |
| } | |
| if (pObj->m_ClipPath.GetTextCount()) { | |
| continue; | |
| } | |
| CPDF_Path ClipPath = pObj->m_ClipPath.GetPath(0); | |
| if (!ClipPath.IsRect() || pObj->m_Type == PDFPAGE_SHADING) { | |
| continue; | |
| } | |
| CFX_FloatRect old_rect(ClipPath.GetPointX(0), ClipPath.GetPointY(0), | |
| ClipPath.GetPointX(2), ClipPath.GetPointY(2)); | |
| CFX_FloatRect obj_rect(pObj->m_Left, pObj->m_Bottom, pObj->m_Right, pObj->m_Top); | |
| if (old_rect.Contains(obj_rect)) { | |
| pObj->m_ClipPath.SetNull(); | |
| } | |
| } | |
| if (m_pObjects->m_ObjectList.GetCount() == 1) { | |
| CPDF_PageObject* pObj = (CPDF_PageObject*)m_pObjects->m_ObjectList.GetAt(m_pObjects->m_ObjectList.GetHeadPosition()); | |
| if (pObj && pObj->m_Type == PDFPAGE_TEXT) { | |
| CPDF_TextObject* pText = (CPDF_TextObject*)pObj; | |
| } | |
| } | |
| m_Status = Done; | |
| return; | |
| } | |
| } | |
| } | |
| int CPDF_ContentParser::EstimateProgress() | |
| { | |
| if (m_Status == Ready) { | |
| return 0; | |
| } | |
| if (m_Status == Done) { | |
| return 100; | |
| } | |
| if (m_InternalStage == PAGEPARSE_STAGE_CHECKCLIP) { | |
| return 90; | |
| } | |
| if (m_pStreamFilter == NULL) { | |
| return 90 * m_CurrentOffset / m_nStreams; | |
| } | |
| int total_raw_size = m_pStreamFilter->GetStream()->GetRawSize() * m_nStreams; | |
| int parsed_raw_size = m_pStreamFilter->GetStream()->GetRawSize() * m_CurrentOffset + | |
| m_pStreamFilter->GetSrcPos(); | |
| return 90 * parsed_raw_size / total_raw_size; | |
| } | |
| CPDF_InlineImages::CPDF_InlineImages() | |
| { | |
| m_Type = PDFPAGE_INLINES; | |
| m_pStream = NULL; | |
| m_pBitmap = NULL; | |
| } | |
| CPDF_InlineImages::~CPDF_InlineImages() | |
| { | |
| if (m_pStream) { | |
| m_pStream->Release(); | |
| } | |
| if (m_pBitmap) { | |
| delete m_pBitmap; | |
| } | |
| } | |
| void CPDF_InlineImages::AddMatrix(CFX_AffineMatrix& matrix) | |
| { | |
| m_Matrices.Add(matrix); | |
| CFX_FloatRect rect = matrix.GetUnitRect(); | |
| if (m_Matrices.GetSize() > 1) { | |
| CFX_FloatRect rect1(m_Left, m_Bottom, m_Right, m_Top); | |
| rect.Union(rect1); | |
| } | |
| m_Left = rect.left; | |
| m_Right = rect.right; | |
| m_Top = rect.top; | |
| m_Bottom = rect.bottom; | |
| } | |
| #endif |