| // 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_FXCRT_FX_BASIC_H_ |
| #define CORE_FXCRT_FX_BASIC_H_ |
| |
| #include <algorithm> |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxcrt/cfx_binarybuf.h" |
| #include "core/fxcrt/cfx_retain_ptr.h" |
| #include "core/fxcrt/fx_memory.h" |
| #include "core/fxcrt/fx_stream.h" |
| #include "core/fxcrt/fx_string.h" |
| #include "core/fxcrt/fx_system.h" |
| |
| #ifdef PDF_ENABLE_XFA |
| #define FX_IsOdd(a) ((a)&1) |
| #endif // PDF_ENABLE_XFA |
| |
| class CFX_WideTextBuf : public CFX_BinaryBuf { |
| public: |
| void AppendChar(wchar_t wch); |
| FX_STRSIZE GetLength() const { return m_DataSize / sizeof(wchar_t); } |
| wchar_t* GetBuffer() const { |
| return reinterpret_cast<wchar_t*>(m_pBuffer.get()); |
| } |
| |
| CFX_WideStringC AsStringC() const { |
| return CFX_WideStringC(reinterpret_cast<const wchar_t*>(m_pBuffer.get()), |
| m_DataSize / sizeof(wchar_t)); |
| } |
| CFX_WideString MakeString() const { |
| return CFX_WideString(reinterpret_cast<const wchar_t*>(m_pBuffer.get()), |
| m_DataSize / sizeof(wchar_t)); |
| } |
| |
| void Delete(int start_index, int count) { |
| CFX_BinaryBuf::Delete(start_index * sizeof(wchar_t), |
| count * sizeof(wchar_t)); |
| } |
| |
| CFX_WideTextBuf& operator<<(int i); |
| CFX_WideTextBuf& operator<<(double f); |
| CFX_WideTextBuf& operator<<(const wchar_t* lpsz); |
| CFX_WideTextBuf& operator<<(const CFX_WideStringC& str); |
| CFX_WideTextBuf& operator<<(const CFX_WideString& str); |
| CFX_WideTextBuf& operator<<(const CFX_WideTextBuf& buf); |
| }; |
| |
| template <class DataType, int FixedSize> |
| class CFX_FixedBufGrow { |
| public: |
| explicit CFX_FixedBufGrow(int data_size) { |
| if (data_size > FixedSize) { |
| m_pGrowData.reset(FX_Alloc(DataType, data_size)); |
| return; |
| } |
| memset(m_FixedData, 0, sizeof(DataType) * FixedSize); |
| } |
| operator DataType*() { return m_pGrowData ? m_pGrowData.get() : m_FixedData; } |
| |
| private: |
| DataType m_FixedData[FixedSize]; |
| std::unique_ptr<DataType, FxFreeDeleter> m_pGrowData; |
| }; |
| |
| class IFX_Pause { |
| public: |
| virtual ~IFX_Pause() {} |
| virtual bool NeedToPauseNow() = 0; |
| }; |
| |
| uint32_t GetBits32(const uint8_t* pData, int bitpos, int nbits); |
| |
| #endif // CORE_FXCRT_FX_BASIC_H_ |