| // 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_RENDER_H_ |
| #define CORE_INCLUDE_FPDFAPI_FPDF_RENDER_H_ |
| |
| #include "../../../third_party/base/nonstd_unique_ptr.h" |
| #include "../../../public/fpdf_progressive.h" |
| #include "../fxge/fx_ge.h" |
| #include "fpdf_page.h" |
| |
| class CFX_GraphStateData; |
| class CFX_PathData; |
| class CFX_RenderDevice; |
| class CPDF_FormObject; |
| class CPDF_ImageCache; |
| class CPDF_ImageObject; |
| class CPDF_PathObject; |
| class CPDF_QuickStretcher; |
| class CPDF_RenderContext; |
| class CPDF_RenderOptions; |
| class CPDF_RenderStatus; |
| class CPDF_ShadingObject; |
| class CPDF_TextObject; |
| class IFX_Pause; |
| |
| class IPDF_OCContext |
| { |
| public: |
| |
| virtual ~IPDF_OCContext() {} |
| |
| virtual FX_BOOL CheckOCGVisible(const CPDF_Dictionary* pOCG) = 0; |
| |
| FX_BOOL CheckObjectVisible(const CPDF_PageObject* pObj); |
| }; |
| #define RENDER_COLOR_NORMAL 0 |
| #define RENDER_COLOR_GRAY 1 |
| #define RENDER_COLOR_TWOCOLOR 2 |
| #define RENDER_COLOR_ALPHA 3 |
| #define RENDER_CLEARTYPE 0x00000001 |
| #define RENDER_PRINTGRAPHICTEXT 0x00000002 |
| #define RENDER_FORCE_DOWNSAMPLE 0x00000004 |
| #define RENDER_PRINTPREVIEW 0x00000008 |
| #define RENDER_BGR_STRIPE 0x00000010 |
| #define RENDER_NO_NATIVETEXT 0x00000020 |
| #define RENDER_FORCE_HALFTONE 0x00000040 |
| #define RENDER_RECT_AA 0x00000080 |
| #define RENDER_FILL_FULLCOVER 0x00000100 |
| #define RENDER_PRINTIMAGETEXT 0x00000200 |
| #define RENDER_OVERPRINT 0x00000400 |
| #define RENDER_THINLINE 0x00000800 |
| #define RENDER_NOTEXTSMOOTH 0x10000000 |
| #define RENDER_NOPATHSMOOTH 0x20000000 |
| #define RENDER_NOIMAGESMOOTH 0x40000000 |
| #define RENDER_LIMITEDIMAGECACHE 0x80000000 |
| class CPDF_RenderOptions |
| { |
| public: |
| |
| CPDF_RenderOptions(); |
| |
| int m_ColorMode; |
| |
| FX_COLORREF m_BackColor; |
| |
| FX_COLORREF m_ForeColor; |
| |
| FX_DWORD m_Flags; |
| |
| int m_Interpolation; |
| |
| FX_DWORD m_AddFlags; |
| |
| IPDF_OCContext* m_pOCContext; |
| |
| FX_DWORD m_dwLimitCacheSize; |
| |
| int m_HalftoneLimit; |
| |
| FX_ARGB TranslateColor(FX_ARGB argb) const; |
| }; |
| class CPDF_RenderContext |
| { |
| public: |
| |
| CPDF_RenderContext(); |
| |
| void Create(CPDF_Page* pPage, FX_BOOL bFirstLayer = TRUE); |
| |
| void Create(CPDF_Document* pDoc = NULL, CPDF_PageRenderCache* pPageCache = NULL, |
| CPDF_Dictionary* pPageResources = NULL, FX_BOOL bFirstLayer = TRUE); |
| |
| ~CPDF_RenderContext(); |
| |
| void Clear(); |
| |
| void AppendObjectList(CPDF_PageObjects* pObjs, const CFX_AffineMatrix* pObject2Device); |
| |
| void Render(CFX_RenderDevice* pDevice, const CPDF_RenderOptions* pOptions = NULL, |
| const CFX_AffineMatrix* pFinalMatrix = NULL); |
| |
| void DrawObjectList(CFX_RenderDevice* pDevice, CPDF_PageObjects* pObjs, |
| const CFX_AffineMatrix* pObject2Device, const CPDF_RenderOptions* pOptions); |
| |
| void GetBackground(CFX_DIBitmap* pBuffer, const CPDF_PageObject* pObj, |
| const CPDF_RenderOptions* pOptions, CFX_AffineMatrix* pFinalMatrix); |
| |
| CPDF_PageRenderCache* GetPageCache() const |
| { |
| return m_pPageCache; |
| } |
| |
| |
| |
| CPDF_Document* m_pDocument; |
| |
| CPDF_Dictionary* m_pPageResources; |
| |
| CPDF_PageRenderCache* m_pPageCache; |
| |
| protected: |
| |
| CFX_ArrayTemplate<struct _PDF_RenderItem> m_ContentList; |
| |
| FX_BOOL m_bFirstLayer; |
| |
| void Render(CFX_RenderDevice* pDevice, const CPDF_PageObject* pStopObj, |
| const CPDF_RenderOptions* pOptions, const CFX_AffineMatrix* pFinalMatrix); |
| friend class CPDF_RenderStatus; |
| friend class CPDF_ProgressiveRenderer; |
| }; |
| |
| class CPDF_ProgressiveRenderer |
| { |
| public: |
| // Must match FDF_RENDER_* definitions in fpdf_progressive.h. |
| enum Status { |
| Ready = FPDF_RENDER_READER, |
| ToBeContinued = FPDF_RENDER_TOBECOUNTINUED, |
| Done = FPDF_RENDER_DONE, |
| Failed = FPDF_RENDER_FAILED |
| }; |
| static int ToFPDFStatus(Status status) { return static_cast<int>(status); } |
| |
| CPDF_ProgressiveRenderer(CPDF_RenderContext* pContext, |
| CFX_RenderDevice* pDevice, |
| const CPDF_RenderOptions* pOptions); |
| ~CPDF_ProgressiveRenderer(); |
| |
| Status GetStatus() const { return m_Status; } |
| void Start(IFX_Pause* pPause); |
| void Continue(IFX_Pause* pPause); |
| int EstimateProgress(); |
| |
| private: |
| void RenderStep(); |
| |
| Status m_Status; |
| CPDF_RenderContext* const m_pContext; |
| CFX_RenderDevice* const m_pDevice; |
| const CPDF_RenderOptions* const m_pOptions; |
| nonstd::unique_ptr<CPDF_RenderStatus> m_pRenderStatus; |
| CFX_FloatRect m_ClipRect; |
| FX_DWORD m_LayerIndex; |
| FX_DWORD m_ObjectIndex; |
| FX_POSITION m_ObjectPos; |
| FX_POSITION m_PrevLastPos; |
| }; |
| |
| class CPDF_TextRenderer |
| { |
| public: |
| |
| static void DrawTextString(CFX_RenderDevice* pDevice, int left, int top, |
| CPDF_Font* pFont, |
| int height, |
| const CFX_ByteString& str, |
| FX_ARGB argb); |
| |
| static void DrawTextString(CFX_RenderDevice* pDevice, FX_FLOAT origin_x, FX_FLOAT origin_y, |
| CPDF_Font* pFont, |
| FX_FLOAT font_size, |
| const CFX_AffineMatrix* matrix, |
| const CFX_ByteString& str, |
| FX_ARGB fill_argb, |
| FX_ARGB stroke_argb = 0, |
| const CFX_GraphStateData* pGraphState = NULL, |
| const CPDF_RenderOptions* pOptions = NULL |
| ); |
| |
| static FX_BOOL DrawTextPath(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, |
| CPDF_Font* pFont, FX_FLOAT font_size, |
| const CFX_AffineMatrix* pText2User, const CFX_AffineMatrix* pUser2Device, |
| const CFX_GraphStateData* pGraphState, |
| FX_ARGB fill_argb, FX_ARGB stroke_argb, CFX_PathData* pClippingPath, int nFlag = 0); |
| |
| static FX_BOOL DrawNormalText(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, |
| CPDF_Font* pFont, FX_FLOAT font_size, const CFX_AffineMatrix* pText2Device, |
| FX_ARGB fill_argb, const CPDF_RenderOptions* pOptions); |
| |
| static FX_BOOL DrawType3Text(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, |
| CPDF_Font* pFont, FX_FLOAT font_size, const CFX_AffineMatrix* pText2Device, |
| FX_ARGB fill_argb); |
| }; |
| class CPDF_PageRenderCache |
| { |
| public: |
| CPDF_PageRenderCache(CPDF_Page* pPage) |
| { |
| m_pPage = pPage; |
| m_nTimeCount = 0; |
| m_nCacheSize = 0; |
| m_pCurImageCache = NULL; |
| m_bCurFindCache = FALSE; |
| m_pCurImageCaches = NULL; |
| } |
| ~CPDF_PageRenderCache() |
| { |
| ClearAll(); |
| } |
| void ClearAll(); |
| void ClearImageData(); |
| |
| FX_DWORD EstimateSize(); |
| void CacheOptimization(int32_t dwLimitCacheSize); |
| FX_DWORD GetCachedSize(CPDF_Stream* pStream) const; |
| FX_DWORD GetTimeCount() const |
| { |
| return m_nTimeCount; |
| } |
| void SetTimeCount(FX_DWORD dwTimeCount) |
| { |
| m_nTimeCount = dwTimeCount; |
| } |
| |
| void GetCachedBitmap(CPDF_Stream* pStream, CFX_DIBSource*& pBitmap, CFX_DIBSource*& pMask, FX_DWORD& MatteColor, |
| FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE, |
| CPDF_RenderStatus* pRenderStatus = NULL, int32_t downsampleWidth = 0, int32_t downsampleHeight = 0); |
| |
| void ResetBitmap(CPDF_Stream* pStream, const CFX_DIBitmap* pBitmap); |
| void ClearImageCache(CPDF_Stream* pStream); |
| CPDF_Page* GetPage() |
| { |
| return m_pPage; |
| } |
| CFX_MapPtrToPtr m_ImageCaches; |
| public: |
| FX_BOOL StartGetCachedBitmap(CPDF_Stream* pStream, FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, |
| FX_BOOL bLoadMask = FALSE, CPDF_RenderStatus* pRenderStatus = NULL, |
| int32_t downsampleWidth = 0, int32_t downsampleHeight = 0); |
| |
| FX_BOOL Continue(IFX_Pause* pPause); |
| CPDF_ImageCache* m_pCurImageCache; |
| CFX_PtrArray* m_pCurImageCaches; |
| protected: |
| friend class CPDF_Page; |
| CPDF_Page* m_pPage; |
| |
| FX_DWORD m_nTimeCount; |
| FX_DWORD m_nCacheSize; |
| FX_BOOL m_bCurFindCache; |
| }; |
| class CPDF_RenderConfig |
| { |
| public: |
| CPDF_RenderConfig(); |
| ~CPDF_RenderConfig(); |
| int m_HalftoneLimit; |
| int m_RenderStepLimit; |
| }; |
| |
| #endif // CORE_INCLUDE_FPDFAPI_FPDF_RENDER_H_ |