diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_page/fpdf_page_parser_new.cpp')
-rw-r--r-- | core/src/fpdfapi/fpdf_page/fpdf_page_parser_new.cpp | 1644 |
1 files changed, 822 insertions, 822 deletions
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser_new.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_new.cpp index 2eeb1feff5..5442f9b4ec 100644 --- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser_new.cpp +++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_new.cpp @@ -1,822 +1,822 @@ -// 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
+// 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 |