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author | dan sinclair <dsinclair@chromium.org> | 2016-03-23 19:21:44 -0400 |
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committer | dan sinclair <dsinclair@chromium.org> | 2016-03-23 19:21:44 -0400 |
commit | 61b2fc718910a5ab2a75ec5026b239ff33bccfdc (patch) | |
tree | 4031f4cea10dac3d77969035e66fc17235cb1d3d /core/fpdfapi/fpdf_page/cpdf_countedobject.h | |
parent | 46a8a2041868c5df6883647226dab1482e2bf4c2 (diff) | |
download | pdfium-61b2fc718910a5ab2a75ec5026b239ff33bccfdc.tar.xz |
Split core/include/fpdfapi/fpdf_resource.h
This CL splits apart the core/include/fpdfapi/fpdf_resource.h file and places
the classes into individual files.
R=tsepez@chromium.org
Review URL: https://codereview.chromium.org/1824033002 .
Diffstat (limited to 'core/fpdfapi/fpdf_page/cpdf_countedobject.h')
-rw-r--r-- | core/fpdfapi/fpdf_page/cpdf_countedobject.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/core/fpdfapi/fpdf_page/cpdf_countedobject.h b/core/fpdfapi/fpdf_page/cpdf_countedobject.h new file mode 100644 index 0000000000..da840bec60 --- /dev/null +++ b/core/fpdfapi/fpdf_page/cpdf_countedobject.h @@ -0,0 +1,45 @@ +// 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_FPDF_PAGE_CPDF_COUNTEDOBJECT_H_ +#define CORE_FPDFAPI_FPDF_PAGE_CPDF_COUNTEDOBJECT_H_ + +#include "core/fpdfapi/fpdf_page/cpdf_pattern.h" +#include "core/fpdfapi/fpdf_page/include/cpdf_colorspace.h" +#include "core/fxcrt/include/fx_system.h" + +template <class T> +class CPDF_CountedObject { + public: + 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>; + +#endif // CORE_FPDFAPI_FPDF_PAGE_CPDF_COUNTEDOBJECT_H_ |