1 ///////////////////////////////////////////////////////////////////////////// 2 // Name: wx/anidecod.h 3 // Purpose: wxANIDecoder, ANI reader for wxImage and wxAnimation 4 // Author: Francesco Montorsi 5 // CVS-ID: $Id: anidecod.h 45563 2007-04-21 18:17:50Z VZ $ 6 // Copyright: (c) 2006 Francesco Montorsi 7 // Licence: wxWindows licence 8 ///////////////////////////////////////////////////////////////////////////// 9 10 #ifndef _WX_ANIDECOD_H 11 #define _WX_ANIDECOD_H 12 13 #include "wx/defs.h" 14 15 #if wxUSE_STREAMS && wxUSE_ICO_CUR 16 17 #include "wx/stream.h" 18 #include "wx/image.h" 19 #include "wx/animdecod.h" 20 #include "wx/dynarray.h" 21 22 23 class /*WXDLLEXPORT*/ wxANIFrameInfo; 24 25 WX_DECLARE_EXPORTED_OBJARRAY(wxANIFrameInfo, wxANIFrameInfoArray); 26 WX_DECLARE_EXPORTED_OBJARRAY(wxImage, wxImageArray); 27 28 // -------------------------------------------------------------------------- 29 // wxANIDecoder class 30 // -------------------------------------------------------------------------- 31 32 class WXDLLEXPORT wxANIDecoder : public wxAnimationDecoder 33 { 34 public: 35 // constructor, destructor, etc. 36 wxANIDecoder(); 37 ~wxANIDecoder(); 38 39 40 virtual wxSize GetFrameSize(unsigned int frame) const; 41 virtual wxPoint GetFramePosition(unsigned int frame) const; 42 virtual wxAnimationDisposal GetDisposalMethod(unsigned int frame) const; 43 virtual long GetDelay(unsigned int frame) const; 44 virtual wxColour GetTransparentColour(unsigned int frame) const; 45 46 // implementation of wxAnimationDecoder's pure virtuals 47 virtual bool CanRead( wxInputStream& stream ) const; 48 virtual bool Load( wxInputStream& stream ); 49 50 bool ConvertToImage(unsigned int frame, wxImage *image) const; 51 Clone()52 wxAnimationDecoder *Clone() const 53 { return new wxANIDecoder; } GetType()54 wxAnimationType GetType() const 55 { return wxANIMATION_TYPE_ANI; } 56 57 private: 58 // frames stored as wxImage(s): ANI files are meant to be used mostly for animated 59 // cursors and thus they do not use any optimization to encode differences between 60 // two frames: they are just a list of images to display sequentially. 61 wxImageArray m_images; 62 63 // the info about each image stored in m_images. 64 // NB: m_info.GetCount() may differ from m_images.GetCount()! 65 wxANIFrameInfoArray m_info; 66 67 // this is the wxCURHandler used to load the ICON chunk of the ANI files 68 static wxCURHandler sm_handler; 69 70 71 DECLARE_NO_COPY_CLASS(wxANIDecoder) 72 }; 73 74 75 #endif // wxUSE_STREAM && wxUSE_ICO_CUR 76 77 #endif // _WX_ANIDECOD_H 78