X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8f49300284e2c91095ae3ebe62cb3a6d424eac21..7bd30a12ade503fd135c686ecc98a6f6d5fecbeb:/include/wx/imaggif.h diff --git a/include/wx/imaggif.h b/include/wx/imaggif.h index 14d31199a5..0f30653699 100644 --- a/include/wx/imaggif.h +++ b/include/wx/imaggif.h @@ -1,19 +1,15 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: imaggif.h +// Name: wx/imaggif.h // Purpose: wxImage GIF handler -// Author: Vaclav Slavik & Guillermo Rodriguez Garcia +// Author: Vaclav Slavik, Guillermo Rodriguez Garcia, Gershon Elber, Troels K // RCS-ID: $Id$ -// Copyright: (c) Guillermo Rodriguez Garcia +// Copyright: (c) 1999-2011 Vaclav Slavik, Guillermo Rodriguez Garcia, Gershon Elber, Troels K // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_IMAGGIF_H_ #define _WX_IMAGGIF_H_ -#ifdef __GNUG__ -#pragma interface "imaggif.h" -#endif - #include "wx/image.h" @@ -23,29 +19,76 @@ #if wxUSE_GIF -class WXDLLEXPORT wxGIFHandler : public wxImageHandler -{ - DECLARE_DYNAMIC_CLASS(wxGIFHandler) +#define wxIMAGE_OPTION_GIF_COMMENT wxT("GifComment") + +struct wxRGB; +struct GifHashTableType; +class WXDLLIMPEXP_FWD_CORE wxImageArray; // anidecod.h +class WXDLLIMPEXP_CORE wxGIFHandler : public wxImageHandler +{ public: + inline wxGIFHandler() + { + m_name = wxT("GIF file"); + m_extension = wxT("gif"); + m_type = wxBITMAP_TYPE_GIF; + m_mime = wxT("image/gif"); + m_hashTable = NULL; + } + +#if wxUSE_STREAMS + virtual bool LoadFile(wxImage *image, wxInputStream& stream, + bool verbose = true, int index = -1); + virtual bool SaveFile(wxImage *image, wxOutputStream& stream, + bool verbose=true); + + // Save animated gif + bool SaveAnimation(const wxImageArray& images, wxOutputStream *stream, + bool verbose = true, int delayMilliSecs = 1000); - inline wxGIFHandler() - { - m_name = "GIF file"; - m_extension = "gif"; - m_type = wxBITMAP_TYPE_GIF; - m_mime = "image/gif"; - }; +protected: + virtual int DoGetImageCount(wxInputStream& stream); + virtual bool DoCanRead(wxInputStream& stream); + + bool DoSaveFile(const wxImage&, wxOutputStream *, bool verbose, + bool first, int delayMilliSecs, bool loop, + const wxRGB *pal, int palCount, + int mask_index); +#endif // wxUSE_STREAMS +protected: + + // Declarations for saving + + unsigned long m_crntShiftDWord; /* For bytes decomposition into codes. */ + int m_pixelCount; + struct GifHashTableType *m_hashTable; + wxInt16 + m_EOFCode, /* The EOF LZ code. */ + m_clearCode, /* The CLEAR LZ code. */ + m_runningCode, /* The next code algorithm can generate. */ + m_runningBits, /* The number of bits required to represent RunningCode. */ + m_maxCode1, /* 1 bigger than max. possible code, in RunningBits bits. */ + m_crntCode, /* Current algorithm code. */ + m_crntShiftState; /* Number of bits in CrntShiftDWord. */ + wxUint8 m_LZBuf[256]; /* Compressed input is buffered here. */ + + bool InitHashTable(); + void ClearHashTable(); + void InsertHashTable(unsigned long key, int code); + int ExistsHashTable(unsigned long key); #if wxUSE_STREAMS - virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 ); - virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE ); - virtual bool DoCanRead( wxInputStream& stream ); + bool CompressOutput(wxOutputStream *, int code); + bool SetupCompress(wxOutputStream *, int bpp); + bool CompressLine(wxOutputStream *, const wxUint8 *line, int lineLen); #endif + +private: + DECLARE_DYNAMIC_CLASS(wxGIFHandler) }; -#endif +#endif // wxUSE_GIF -#endif - // _WX_IMAGGIF_H_ +#endif // _WX_IMAGGIF_H_