X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..66c2bf7b1d9326fb650acfaae22ec50528cfbf7c:/include/wx/zstream.h?ds=sidebyside diff --git a/include/wx/zstream.h b/include/wx/zstream.h index f5ec6a5906..193bb79d4e 100644 --- a/include/wx/zstream.h +++ b/include/wx/zstream.h @@ -1,28 +1,24 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: zstream.h +// Name: wx/zstream.h // Purpose: Memory stream classes // Author: Guilhem Lavaux // Modified by: Mike Wetherell // Created: 11/07/98 -// RCS-ID: $Id$ // Copyright: (c) Guilhem Lavaux -// Licence: wxWidgets licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_WXZSTREAM_H__ #define _WX_WXZSTREAM_H__ -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -#pragma interface "zstream.h" -#endif - #include "wx/defs.h" #if wxUSE_ZLIB && wxUSE_STREAMS #include "wx/stream.h" +#include "wx/versioninfo.h" // Compression level -enum { +enum wxZlibCompressionLevels { wxZ_DEFAULT_COMPRESSION = -1, wxZ_NO_COMPRESSION = 0, wxZ_BEST_SPEED = 1, @@ -30,10 +26,7 @@ enum { }; // Flags -enum { -#if WXWIN_COMPATIBILITY_2_4 - wxZLIB_24COMPATIBLE = 4, // read v2.4.x data without error -#endif +enum wxZLibFlags { wxZLIB_NO_HEADER = 0, // raw deflate stream, no header or checksum wxZLIB_ZLIB = 1, // zlib header and checksum wxZLIB_GZIP = 2, // gzip header and checksum, requires zlib 1.2.1+ @@ -43,54 +36,110 @@ enum { class WXDLLIMPEXP_BASE wxZlibInputStream: public wxFilterInputStream { public: wxZlibInputStream(wxInputStream& stream, int flags = wxZLIB_AUTO); + wxZlibInputStream(wxInputStream *stream, int flags = wxZLIB_AUTO); virtual ~wxZlibInputStream(); char Peek() { return wxInputStream::Peek(); } - size_t GetSize() const { return wxInputStream::GetSize(); } + wxFileOffset GetLength() const { return wxInputStream::GetLength(); } static bool CanHandleGZip(); + bool SetDictionary(const char *data, const size_t datalen); + bool SetDictionary(const wxMemoryBuffer &buf); + protected: size_t OnSysRead(void *buffer, size_t size); - off_t OnSysTell() const { return m_pos; } + wxFileOffset OnSysTell() const { return m_pos; } + + private: + void Init(int flags); protected: size_t m_z_size; unsigned char *m_z_buffer; struct z_stream_s *m_inflate; - off_t m_pos; -#if WXWIN_COMPATIBILITY_2_4 - bool m_24compatibilty; -#endif + wxFileOffset m_pos; - DECLARE_NO_COPY_CLASS(wxZlibInputStream) + wxDECLARE_NO_COPY_CLASS(wxZlibInputStream); }; class WXDLLIMPEXP_BASE wxZlibOutputStream: public wxFilterOutputStream { public: wxZlibOutputStream(wxOutputStream& stream, int level = -1, int flags = wxZLIB_ZLIB); - virtual ~wxZlibOutputStream(); + wxZlibOutputStream(wxOutputStream *stream, int level = -1, int flags = wxZLIB_ZLIB); + virtual ~wxZlibOutputStream() { Close(); } void Sync() { DoFlush(false); } - size_t GetSize() const { return (size_t)m_pos; } + bool Close(); + wxFileOffset GetLength() const { return m_pos; } static bool CanHandleGZip(); + bool SetDictionary(const char *data, const size_t datalen); + bool SetDictionary(const wxMemoryBuffer &buf); + protected: size_t OnSysWrite(const void *buffer, size_t size); - off_t OnSysTell() const { return m_pos; } + wxFileOffset OnSysTell() const { return m_pos; } virtual void DoFlush(bool final); + private: + void Init(int level, int flags); + protected: size_t m_z_size; unsigned char *m_z_buffer; struct z_stream_s *m_deflate; - off_t m_pos; + wxFileOffset m_pos; + + wxDECLARE_NO_COPY_CLASS(wxZlibOutputStream); +}; - DECLARE_NO_COPY_CLASS(wxZlibOutputStream) +class WXDLLIMPEXP_BASE wxZlibClassFactory: public wxFilterClassFactory +{ +public: + wxZlibClassFactory(); + + wxFilterInputStream *NewStream(wxInputStream& stream) const + { return new wxZlibInputStream(stream); } + wxFilterOutputStream *NewStream(wxOutputStream& stream) const + { return new wxZlibOutputStream(stream, -1); } + wxFilterInputStream *NewStream(wxInputStream *stream) const + { return new wxZlibInputStream(stream); } + wxFilterOutputStream *NewStream(wxOutputStream *stream) const + { return new wxZlibOutputStream(stream, -1); } + + const wxChar * const *GetProtocols(wxStreamProtocolType type + = wxSTREAM_PROTOCOL) const; + +private: + DECLARE_DYNAMIC_CLASS(wxZlibClassFactory) }; +class WXDLLIMPEXP_BASE wxGzipClassFactory: public wxFilterClassFactory +{ +public: + wxGzipClassFactory(); + + wxFilterInputStream *NewStream(wxInputStream& stream) const + { return new wxZlibInputStream(stream); } + wxFilterOutputStream *NewStream(wxOutputStream& stream) const + { return new wxZlibOutputStream(stream, -1); } + wxFilterInputStream *NewStream(wxInputStream *stream) const + { return new wxZlibInputStream(stream); } + wxFilterOutputStream *NewStream(wxOutputStream *stream) const + { return new wxZlibOutputStream(stream, -1); } + + const wxChar * const *GetProtocols(wxStreamProtocolType type + = wxSTREAM_PROTOCOL) const; + +private: + DECLARE_DYNAMIC_CLASS(wxGzipClassFactory) +}; + +WXDLLIMPEXP_BASE wxVersionInfo wxGetZlibVersionInfo(); + #endif // wxUSE_ZLIB && wxUSE_STREAMS