| | 1 | ///////////////////////////////////////////////////////////////////////////// |
| | 2 | // Name: wx/anidecod.h |
| | 3 | // Purpose: wxANIDecoder, ANI reader for wxImage and wxAnimation |
| | 4 | // Author: Francesco Montorsi |
| | 5 | // Copyright: (c) 2006 Francesco Montorsi |
| | 6 | // Licence: wxWindows licence |
| | 7 | ///////////////////////////////////////////////////////////////////////////// |
| | 8 | |
| | 9 | #ifndef _WX_ANIDECOD_H |
| | 10 | #define _WX_ANIDECOD_H |
| | 11 | |
| | 12 | #include "wx/defs.h" |
| | 13 | |
| | 14 | #if wxUSE_STREAMS && (wxUSE_ICO_CUR || wxUSE_GIF) |
| | 15 | |
| | 16 | #include "wx/stream.h" |
| | 17 | #include "wx/image.h" |
| | 18 | #include "wx/animdecod.h" |
| | 19 | #include "wx/dynarray.h" |
| | 20 | |
| | 21 | |
| | 22 | class /*WXDLLIMPEXP_CORE*/ wxANIFrameInfo; // private implementation detail |
| | 23 | |
| | 24 | WX_DECLARE_EXPORTED_OBJARRAY(wxANIFrameInfo, wxANIFrameInfoArray); |
| | 25 | WX_DECLARE_EXPORTED_OBJARRAY(wxImage, wxImageArray); |
| | 26 | |
| | 27 | // -------------------------------------------------------------------------- |
| | 28 | // wxANIDecoder class |
| | 29 | // -------------------------------------------------------------------------- |
| | 30 | |
| | 31 | class WXDLLIMPEXP_CORE wxANIDecoder : public wxAnimationDecoder |
| | 32 | { |
| | 33 | public: |
| | 34 | // constructor, destructor, etc. |
| | 35 | wxANIDecoder(); |
| | 36 | ~wxANIDecoder(); |
| | 37 | |
| | 38 | |
| | 39 | virtual wxSize GetFrameSize(unsigned int frame) const; |
| | 40 | virtual wxPoint GetFramePosition(unsigned int frame) const; |
| | 41 | virtual wxAnimationDisposal GetDisposalMethod(unsigned int frame) const; |
| | 42 | virtual long GetDelay(unsigned int frame) const; |
| | 43 | virtual wxColour GetTransparentColour(unsigned int frame) const; |
| | 44 | |
| | 45 | // implementation of wxAnimationDecoder's pure virtuals |
| | 46 | |
| | 47 | virtual bool Load( wxInputStream& stream ); |
| | 48 | |
| | 49 | bool ConvertToImage(unsigned int frame, wxImage *image) const; |
| | 50 | |
| | 51 | wxAnimationDecoder *Clone() const |
| | 52 | { return new wxANIDecoder; } |
| | 53 | wxAnimationType GetType() const |
| | 54 | { return wxANIMATION_TYPE_ANI; } |
| | 55 | |
| | 56 | private: |
| | 57 | // wxAnimationDecoder pure virtual: |
| | 58 | virtual bool DoCanRead( wxInputStream& stream ) const; |
| | 59 | // modifies current stream position (see wxAnimationDecoder::CanRead) |
| | 60 | |
| | 61 | // frames stored as wxImage(s): ANI files are meant to be used mostly for animated |
| | 62 | // cursors and thus they do not use any optimization to encode differences between |
| | 63 | // two frames: they are just a list of images to display sequentially. |
| | 64 | wxImageArray m_images; |
| | 65 | |
| | 66 | // the info about each image stored in m_images. |
| | 67 | // NB: m_info.GetCount() may differ from m_images.GetCount()! |
| | 68 | wxANIFrameInfoArray m_info; |
| | 69 | |
| | 70 | // this is the wxCURHandler used to load the ICON chunk of the ANI files |
| | 71 | static wxCURHandler sm_handler; |
| | 72 | |
| | 73 | |
| | 74 | wxDECLARE_NO_COPY_CLASS(wxANIDecoder); |
| | 75 | }; |
| | 76 | |
| | 77 | |
| | 78 | #endif // wxUSE_STREAMS && (wxUSE_ICO_CUR || wxUSE_GIF) |
| | 79 | |
| | 80 | #endif // _WX_ANIDECOD_H |
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