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| author | Tom Sepez <tsepez@chromium.org> | 2015-06-15 16:58:19 -0700 |
|---|---|---|
| committer | Tom Sepez <tsepez@chromium.org> | 2015-06-15 16:58:19 -0700 |
| commit | 3403db90496fc87269d7bb1d033347ee19fc0c38 (patch) | |
| tree | 5a021983df77507ccead2cdb6faef4f2b6294c04 /core/include/fpdfapi/fpdf_resource.h | |
| parent | 366e1c47335717b73d14b804020291758c8afc38 (diff) | |
| download | pdfium-3403db90496fc87269d7bb1d033347ee19fc0c38.tar.xz | |
Merge to XFA: Provide a constructor for CPDF_CountedObject.
Original Review URL: https://codereview.chromium.org/1182903002.
TBR=thestig@chromium.org
Review URL: https://codereview.chromium.org/1191553005.
Diffstat (limited to 'core/include/fpdfapi/fpdf_resource.h')
| -rw-r--r-- | core/include/fpdfapi/fpdf_resource.h | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/core/include/fpdfapi/fpdf_resource.h b/core/include/fpdfapi/fpdf_resource.h index 268e75c7bf..2787d97329 100644 --- a/core/include/fpdfapi/fpdf_resource.h +++ b/core/include/fpdfapi/fpdf_resource.h @@ -7,6 +7,7 @@ #ifndef CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_ #define CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_ +#include "../fxcrt/fx_system.h" #include "../fxge/fx_font.h" #include "fpdf_parser.h" @@ -37,14 +38,29 @@ class CPDF_Type1Font; class CPDF_Type3Font; typedef struct FT_FaceRec_* FXFT_Face; -template <class ObjClass> class CPDF_CountedObject +template <class T> class CPDF_CountedObject { public: - ObjClass m_Obj; - FX_DWORD m_nCount; + explicit CPDF_CountedObject(T* ptr) : m_nCount(1), m_pObj(ptr) { } + void reset(T* ptr) { // CAUTION: tosses prior ref counts. + m_nCount = 1; + m_pObj = ptr; + } + void clear() { // Now you're all weak ptrs ... + delete m_pObj; + m_pObj = nullptr; + } + T* get() const { return m_pObj; } + T* AddRef() { FXSYS_assert(m_pObj); ++m_nCount; return m_pObj; } + void RemoveRef() { if (m_nCount) --m_nCount; } + size_t use_count() const { return m_nCount; } + +protected: + size_t m_nCount; + T* m_pObj; }; -using CPDF_CountedColorSpace = CPDF_CountedObject<CPDF_ColorSpace*>; -using CPDF_CountedPattern = CPDF_CountedObject<CPDF_Pattern*>; +using CPDF_CountedColorSpace = CPDF_CountedObject<CPDF_ColorSpace>; +using CPDF_CountedPattern = CPDF_CountedObject<CPDF_Pattern>; #define PDFFONT_TYPE1 1 #define PDFFONT_TRUETYPE 2 |