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 | 822 |
1 files changed, 822 insertions, 0 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 new file mode 100644 index 0000000000..2eeb1feff5 --- /dev/null +++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_new.cpp @@ -0,0 +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
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