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 23class /*WXDLLEXPORT*/ wxANIFrameInfo; 24 25WX_DECLARE_EXPORTED_OBJARRAY(wxANIFrameInfo, wxANIFrameInfoArray); 26WX_DECLARE_EXPORTED_OBJARRAY(wxImage, wxImageArray); 27 28// -------------------------------------------------------------------------- 29// wxANIDecoder class 30// -------------------------------------------------------------------------- 31 32class WXDLLEXPORT wxANIDecoder : public wxAnimationDecoder 33{ 34public: 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 52 wxAnimationDecoder *Clone() const 53 { return new wxANIDecoder; } 54 wxAnimationType GetType() const 55 { return wxANIMATION_TYPE_ANI; } 56 57private: 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