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authortsepez <tsepez@chromium.org>2016-10-13 11:29:04 -0700
committerCommit bot <commit-bot@chromium.org>2016-10-13 11:29:04 -0700
commit271d9c0a85b50208baa8789ba6b245956317f719 (patch)
tree5202284e527cd2bdcd7bcd22495018c9fbff1fd5 /core/fpdfapi/page/cpdf_streamcontentparser.h
parentaeb44f8c4675141e170329d5093b251fbfad8023 (diff)
downloadpdfium-271d9c0a85b50208baa8789ba6b245956317f719.tar.xz
Put CPDF_StreamContentParser into its own .cpp/.h files
No functional changes. Make many of its methods private. Review-Url: https://codereview.chromium.org/2415943003
Diffstat (limited to 'core/fpdfapi/page/cpdf_streamcontentparser.h')
-rw-r--r--core/fpdfapi/page/cpdf_streamcontentparser.h225
1 files changed, 225 insertions, 0 deletions
diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.h b/core/fpdfapi/page/cpdf_streamcontentparser.h
new file mode 100644
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+++ b/core/fpdfapi/page/cpdf_streamcontentparser.h
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+// Copyright 2016 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
+
+#ifndef CORE_FPDFAPI_PAGE_CPDF_STREAMCONTENTPARSER_H_
+#define CORE_FPDFAPI_PAGE_CPDF_STREAMCONTENTPARSER_H_
+
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+#include "core/fpdfapi/page/cpdf_contentmark.h"
+#include "core/fpdfapi/parser/cpdf_stream.h"
+#include "core/fxcrt/fx_string.h"
+#include "core/fxge/cfx_pathdata.h"
+
+class CPDF_AllStates;
+class CPDF_Dictionary;
+class CPDF_Document;
+class CPDF_Font;
+class CPDF_Image;
+class CPDF_ImageObject;
+class CPDF_PageObject;
+class CPDF_PageObjectHolder;
+class CPDF_StreamParser;
+class CPDF_TextObject;
+class CPDF_ColorSpace;
+class CPDF_Pattern;
+
+class CPDF_StreamContentParser {
+ public:
+ CPDF_StreamContentParser(CPDF_Document* pDoc,
+ CPDF_Dictionary* pPageResources,
+ CPDF_Dictionary* pParentResources,
+ const CFX_Matrix* pmtContentToUser,
+ CPDF_PageObjectHolder* pObjectHolder,
+ CPDF_Dictionary* pResources,
+ CFX_FloatRect* pBBox,
+ CPDF_AllStates* pAllStates,
+ int level);
+ ~CPDF_StreamContentParser();
+
+ uint32_t Parse(const uint8_t* pData, uint32_t dwSize, uint32_t max_cost);
+ CPDF_PageObjectHolder* GetPageObjectHolder() const { return m_pObjectHolder; }
+ CPDF_AllStates* GetCurStates() const { return m_pCurStates.get(); }
+ bool IsColored() const { return m_bColored; }
+ const FX_FLOAT* GetType3Data() const { return m_Type3Data; }
+ CPDF_Font* FindFont(const CFX_ByteString& name);
+
+ private:
+ struct ContentParam {
+ enum Type { OBJECT = 0, NUMBER, NAME };
+ Type m_Type;
+ union {
+ struct {
+ bool m_bInteger;
+ union {
+ int m_Integer;
+ FX_FLOAT m_Float;
+ };
+ } m_Number;
+ CPDF_Object* m_pObject;
+ struct {
+ int m_Len;
+ char m_Buffer[32];
+ } m_Name;
+ };
+ };
+
+ static const int kParamBufSize = 16;
+
+ using OpCodes =
+ std::unordered_map<uint32_t, void (CPDF_StreamContentParser::*)()>;
+ static OpCodes InitializeOpCodes();
+
+ void AddNumberParam(const FX_CHAR* str, int len);
+ void AddObjectParam(CPDF_Object* pObj);
+ void AddNameParam(const FX_CHAR* name, int size);
+ int GetNextParamPos();
+ void ClearAllParams();
+ CPDF_Object* GetObject(uint32_t index);
+ CFX_ByteString GetString(uint32_t index);
+ FX_FLOAT GetNumber(uint32_t index);
+ int GetInteger(uint32_t index) { return (int32_t)(GetNumber(index)); }
+ void OnOperator(const FX_CHAR* op);
+ void AddTextObject(CFX_ByteString* pText,
+ FX_FLOAT fInitKerning,
+ FX_FLOAT* pKerning,
+ int count);
+
+ void ConvertUserSpace(FX_FLOAT& x, FX_FLOAT& y);
+ void ConvertTextSpace(FX_FLOAT& x, FX_FLOAT& y);
+ void OnChangeTextMatrix();
+ void ParsePathObject();
+ void AddPathPoint(FX_FLOAT x, FX_FLOAT y, int flag);
+ void AddPathRect(FX_FLOAT x, FX_FLOAT y, FX_FLOAT w, FX_FLOAT h);
+ void AddPathObject(int FillType, bool bStroke);
+ CPDF_ImageObject* AddImage(UniqueStream pStream);
+ CPDF_ImageObject* AddImage(uint32_t streamObjNum);
+ CPDF_ImageObject* AddImage(CPDF_Image* pImage);
+
+ void AddForm(CPDF_Stream* pStream);
+ void SetGraphicStates(CPDF_PageObject* pObj,
+ bool bColor,
+ bool bText,
+ bool bGraph);
+ CPDF_ColorSpace* FindColorSpace(const CFX_ByteString& name);
+ CPDF_Pattern* FindPattern(const CFX_ByteString& name, bool bShading);
+ CPDF_Object* FindResourceObj(const CFX_ByteString& type,
+ const CFX_ByteString& name);
+
+ // Takes ownership of |pImageObj|, returns unowned pointer to it.
+ CPDF_ImageObject* AddImageObject(std::unique_ptr<CPDF_ImageObject> pImageObj);
+
+ void Handle_CloseFillStrokePath();
+ void Handle_FillStrokePath();
+ void Handle_CloseEOFillStrokePath();
+ void Handle_EOFillStrokePath();
+ void Handle_BeginMarkedContent_Dictionary();
+ void Handle_BeginImage();
+ void Handle_BeginMarkedContent();
+ void Handle_BeginText();
+ void Handle_CurveTo_123();
+ void Handle_ConcatMatrix();
+ void Handle_SetColorSpace_Fill();
+ void Handle_SetColorSpace_Stroke();
+ void Handle_SetDash();
+ void Handle_SetCharWidth();
+ void Handle_SetCachedDevice();
+ void Handle_ExecuteXObject();
+ void Handle_MarkPlace_Dictionary();
+ void Handle_EndImage();
+ void Handle_EndMarkedContent();
+ void Handle_EndText();
+ void Handle_FillPath();
+ void Handle_FillPathOld();
+ void Handle_EOFillPath();
+ void Handle_SetGray_Fill();
+ void Handle_SetGray_Stroke();
+ void Handle_SetExtendGraphState();
+ void Handle_ClosePath();
+ void Handle_SetFlat();
+ void Handle_BeginImageData();
+ void Handle_SetLineJoin();
+ void Handle_SetLineCap();
+ void Handle_SetCMYKColor_Fill();
+ void Handle_SetCMYKColor_Stroke();
+ void Handle_LineTo();
+ void Handle_MoveTo();
+ void Handle_SetMiterLimit();
+ void Handle_MarkPlace();
+ void Handle_EndPath();
+ void Handle_SaveGraphState();
+ void Handle_RestoreGraphState();
+ void Handle_Rectangle();
+ void Handle_SetRGBColor_Fill();
+ void Handle_SetRGBColor_Stroke();
+ void Handle_SetRenderIntent();
+ void Handle_CloseStrokePath();
+ void Handle_StrokePath();
+ void Handle_SetColor_Fill();
+ void Handle_SetColor_Stroke();
+ void Handle_SetColorPS_Fill();
+ void Handle_SetColorPS_Stroke();
+ void Handle_ShadeFill();
+ void Handle_SetCharSpace();
+ void Handle_MoveTextPoint();
+ void Handle_MoveTextPoint_SetLeading();
+ void Handle_SetFont();
+ void Handle_ShowText();
+ void Handle_ShowText_Positioning();
+ void Handle_SetTextLeading();
+ void Handle_SetTextMatrix();
+ void Handle_SetTextRenderMode();
+ void Handle_SetTextRise();
+ void Handle_SetWordSpace();
+ void Handle_SetHorzScale();
+ void Handle_MoveToNextLine();
+ void Handle_CurveTo_23();
+ void Handle_SetLineWidth();
+ void Handle_Clip();
+ void Handle_EOClip();
+ void Handle_CurveTo_13();
+ void Handle_NextLineShowText();
+ void Handle_NextLineShowText_Space();
+ void Handle_Invalid();
+
+ CPDF_Document* const m_pDocument;
+ CPDF_Dictionary* m_pPageResources;
+ CPDF_Dictionary* m_pParentResources;
+ CPDF_Dictionary* m_pResources;
+ CPDF_PageObjectHolder* m_pObjectHolder;
+ int m_Level;
+ CFX_Matrix m_mtContentToUser;
+ CFX_FloatRect m_BBox;
+ ContentParam m_ParamBuf[kParamBufSize];
+ uint32_t m_ParamStartPos;
+ uint32_t m_ParamCount;
+ CPDF_StreamParser* m_pSyntax;
+ std::unique_ptr<CPDF_AllStates> m_pCurStates;
+ CPDF_ContentMark m_CurContentMark;
+ std::vector<std::unique_ptr<CPDF_TextObject>> m_ClipTextList;
+ CPDF_TextObject* m_pLastTextObject;
+ FX_FLOAT m_DefFontSize;
+ FX_PATHPOINT* m_pPathPoints;
+ int m_PathPointCount;
+ int m_PathAllocSize;
+ FX_FLOAT m_PathStartX;
+ FX_FLOAT m_PathStartY;
+ FX_FLOAT m_PathCurrentX;
+ FX_FLOAT m_PathCurrentY;
+ uint8_t m_PathClipType;
+ CFX_ByteString m_LastImageName;
+ CPDF_Image* m_pLastImage;
+ CPDF_Dictionary* m_pLastImageDict;
+ CPDF_Dictionary* m_pLastCloneImageDict;
+ bool m_bColored;
+ FX_FLOAT m_Type3Data[6];
+ bool m_bResourceMissing;
+ std::vector<std::unique_ptr<CPDF_AllStates>> m_StateStack;
+};
+
+#endif // CORE_FPDFAPI_PAGE_CPDF_STREAMCONTENTPARSER_H_