82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/anidecod.h
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// Purpose: wxANIDecoder, ANI reader for wxImage and wxAnimation
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// Author: Francesco Montorsi
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// Copyright: (c) 2006 Francesco Montorsi
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_ANIDECOD_H
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#define _WX_ANIDECOD_H
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#include "wx/defs.h"
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#if wxUSE_STREAMS && (wxUSE_ICO_CUR || wxUSE_GIF)
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#include "wx/stream.h"
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#include "wx/image.h"
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#include "wx/animdecod.h"
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#include "wx/dynarray.h"
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class /*WXDLLIMPEXP_CORE*/ wxANIFrameInfo; // private implementation detail
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WX_DECLARE_EXPORTED_OBJARRAY(wxANIFrameInfo, wxANIFrameInfoArray);
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WX_DECLARE_EXPORTED_OBJARRAY(wxImage, wxImageArray);
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// --------------------------------------------------------------------------
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// wxANIDecoder class
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// --------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxANIDecoder : public wxAnimationDecoder
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{
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public:
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// constructor, destructor, etc.
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wxANIDecoder();
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~wxANIDecoder();
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virtual wxSize GetFrameSize(unsigned int frame) const wxOVERRIDE;
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virtual wxPoint GetFramePosition(unsigned int frame) const wxOVERRIDE;
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virtual wxAnimationDisposal GetDisposalMethod(unsigned int frame) const wxOVERRIDE;
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virtual long GetDelay(unsigned int frame) const wxOVERRIDE;
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virtual wxColour GetTransparentColour(unsigned int frame) const wxOVERRIDE;
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// implementation of wxAnimationDecoder's pure virtuals
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virtual bool Load( wxInputStream& stream ) wxOVERRIDE;
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bool ConvertToImage(unsigned int frame, wxImage *image) const wxOVERRIDE;
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wxAnimationDecoder *Clone() const wxOVERRIDE
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{ return new wxANIDecoder; }
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wxAnimationType GetType() const wxOVERRIDE
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{ return wxANIMATION_TYPE_ANI; }
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protected:
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// wxAnimationDecoder pure virtual:
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virtual bool DoCanRead( wxInputStream& stream ) const wxOVERRIDE;
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// modifies current stream position (see wxAnimationDecoder::CanRead)
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private:
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// frames stored as wxImage(s): ANI files are meant to be used mostly for animated
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// cursors and thus they do not use any optimization to encode differences between
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// two frames: they are just a list of images to display sequentially.
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wxImageArray m_images;
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// the info about each image stored in m_images.
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// NB: m_info.GetCount() may differ from m_images.GetCount()!
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wxANIFrameInfoArray m_info;
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// this is the wxCURHandler used to load the ICON chunk of the ANI files
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static wxCURHandler sm_handler;
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wxDECLARE_NO_COPY_CLASS(wxANIDecoder);
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};
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#endif // wxUSE_STREAMS && (wxUSE_ICO_CUR || wxUSE_GIF)
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#endif // _WX_ANIDECOD_H
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