| // 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 |
| |
| #ifndef CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_ |
| #define CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_ |
| |
| #include "core/include/fxge/fx_dib.h" |
| #include "fpdf_parser.h" |
| #include "fpdf_resource.h" |
| |
| class CPDF_PageObjects; |
| class CPDF_Page; |
| class CPDF_Form; |
| class CPDF_ParseOptions; |
| class CPDF_PageObject; |
| class CPDF_PageRenderCache; |
| class CPDF_StreamFilter; |
| class CPDF_AllStates; |
| class CPDF_ContentParser; |
| class CPDF_StreamContentParser; |
| #define PDFTRANS_GROUP 0x0100 |
| #define PDFTRANS_ISOLATED 0x0200 |
| #define PDFTRANS_KNOCKOUT 0x0400 |
| |
| class CPDF_PageObjects { |
| public: |
| CPDF_PageObjects(FX_BOOL bReleaseMembers = TRUE); |
| ~CPDF_PageObjects(); |
| |
| void ContinueParse(IFX_Pause* pPause); |
| |
| FX_BOOL IsParsed() const { return m_ParseState == CONTENT_PARSED; } |
| |
| FX_POSITION GetFirstObjectPosition() const { |
| return m_ObjectList.GetHeadPosition(); |
| } |
| |
| FX_POSITION GetLastObjectPosition() const { |
| return m_ObjectList.GetTailPosition(); |
| } |
| |
| CPDF_PageObject* GetNextObject(FX_POSITION& pos) const { |
| return (CPDF_PageObject*)m_ObjectList.GetNext(pos); |
| } |
| |
| CPDF_PageObject* GetPrevObject(FX_POSITION& pos) const { |
| return (CPDF_PageObject*)m_ObjectList.GetPrev(pos); |
| } |
| |
| CPDF_PageObject* GetObjectAt(FX_POSITION pos) const { |
| return (CPDF_PageObject*)m_ObjectList.GetAt(pos); |
| } |
| |
| FX_DWORD CountObjects() const { return m_ObjectList.GetCount(); } |
| |
| int GetObjectIndex(CPDF_PageObject* pObj) const; |
| |
| CPDF_PageObject* GetObjectByIndex(int index) const; |
| |
| FX_POSITION InsertObject(FX_POSITION posInsertAfter, |
| CPDF_PageObject* pNewObject); |
| |
| void Transform(const CFX_Matrix& matrix); |
| |
| FX_BOOL BackgroundAlphaNeeded() const { return m_bBackgroundAlphaNeeded; } |
| |
| CFX_FloatRect CalcBoundingBox() const; |
| |
| CPDF_Dictionary* m_pFormDict; |
| CPDF_Stream* m_pFormStream; |
| CPDF_Document* m_pDocument; |
| CPDF_Dictionary* m_pPageResources; |
| CPDF_Dictionary* m_pResources; |
| CFX_FloatRect m_BBox; |
| int m_Transparency; |
| |
| protected: |
| friend class CPDF_ContentParser; |
| friend class CPDF_StreamContentParser; |
| friend class CPDF_AllStates; |
| |
| enum ParseState { CONTENT_NOT_PARSED, CONTENT_PARSING, CONTENT_PARSED }; |
| |
| void LoadTransInfo(); |
| void ClearCacheObjects(); |
| |
| CFX_PtrList m_ObjectList; |
| FX_BOOL m_bBackgroundAlphaNeeded; |
| FX_BOOL m_bReleaseMembers; |
| CPDF_ContentParser* m_pParser; |
| ParseState m_ParseState; |
| }; |
| |
| class CPDF_Page : public CPDF_PageObjects, public CFX_PrivateData { |
| public: |
| CPDF_Page(); |
| ~CPDF_Page(); |
| |
| void Load(CPDF_Document* pDocument, |
| CPDF_Dictionary* pPageDict, |
| FX_BOOL bPageCache = TRUE); |
| |
| void StartParse(CPDF_ParseOptions* pOptions = NULL, FX_BOOL bReParse = FALSE); |
| void ParseContent(CPDF_ParseOptions* pOptions = NULL, |
| FX_BOOL bReParse = FALSE); |
| |
| void GetDisplayMatrix(CFX_Matrix& matrix, |
| int xPos, |
| int yPos, |
| int xSize, |
| int ySize, |
| int iRotate) const; |
| |
| FX_FLOAT GetPageWidth() const { return m_PageWidth; } |
| FX_FLOAT GetPageHeight() const { return m_PageHeight; } |
| CFX_FloatRect GetPageBBox() const { return m_BBox; } |
| const CFX_Matrix& GetPageMatrix() const { return m_PageMatrix; } |
| CPDF_Object* GetPageAttr(const CFX_ByteStringC& name) const; |
| CPDF_PageRenderCache* GetRenderCache() const { return m_pPageRender; } |
| |
| protected: |
| friend class CPDF_ContentParser; |
| FX_FLOAT m_PageWidth; |
| FX_FLOAT m_PageHeight; |
| CFX_Matrix m_PageMatrix; |
| CPDF_PageRenderCache* m_pPageRender; |
| }; |
| class CPDF_ParseOptions { |
| public: |
| CPDF_ParseOptions(); |
| |
| FX_BOOL m_bTextOnly; |
| |
| FX_BOOL m_bMarkedContent; |
| |
| FX_BOOL m_bSeparateForm; |
| |
| FX_BOOL m_bDecodeInlineImage; |
| }; |
| class CPDF_Form : public CPDF_PageObjects { |
| public: |
| CPDF_Form(CPDF_Document* pDocument, |
| CPDF_Dictionary* pPageResources, |
| CPDF_Stream* pFormStream, |
| CPDF_Dictionary* pParentResources = NULL); |
| |
| ~CPDF_Form(); |
| |
| void StartParse(CPDF_AllStates* pGraphicStates, |
| CFX_Matrix* pParentMatrix, |
| CPDF_Type3Char* pType3Char, |
| CPDF_ParseOptions* pOptions, |
| int level = 0); |
| |
| void ParseContent(CPDF_AllStates* pGraphicStates, |
| CFX_Matrix* pParentMatrix, |
| CPDF_Type3Char* pType3Char, |
| CPDF_ParseOptions* pOptions, |
| int level = 0); |
| |
| CPDF_Form* Clone() const; |
| }; |
| class CPDF_PageContentGenerate { |
| public: |
| CPDF_PageContentGenerate(CPDF_Page* pPage); |
| ~CPDF_PageContentGenerate(); |
| FX_BOOL InsertPageObject(CPDF_PageObject* pPageObject); |
| void GenerateContent(); |
| void TransformContent(CFX_Matrix& matrix); |
| |
| protected: |
| void ProcessImage(CFX_ByteTextBuf& buf, CPDF_ImageObject* pImageObj); |
| void ProcessForm(CFX_ByteTextBuf& buf, |
| const uint8_t* data, |
| FX_DWORD size, |
| CFX_Matrix& matrix); |
| CFX_ByteString RealizeResource(CPDF_Object* pResourceObj, |
| const FX_CHAR* szType); |
| |
| private: |
| CPDF_Page* m_pPage; |
| CPDF_Document* m_pDocument; |
| CFX_ArrayTemplate<CPDF_PageObject*> m_pageObjects; |
| }; |
| |
| #endif // CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_ |