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[wxWidgets.git] / include / wx / anidecod.h
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1/////////////////////////////////////////////////////////////////////////////
2// Name: wx/anidecod.h
3// Purpose: wxANIDecoder, ANI reader for wxImage and wxAnimation
4// Author: Francesco Montorsi
5// CVS-ID: $Id$
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
d18868bb 15#if wxUSE_STREAMS && wxUSE_ICO_CUR
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16
17#include "wx/stream.h"
18#include "wx/image.h"
19#include "wx/animdecod.h"
7e0bac9d 20#include "wx/dynarray.h"
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21
22
53a2db12 23class /*WXDLLIMPEXP_CORE*/ wxANIFrameInfo; // private implementation detail
72045d57 24
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25WX_DECLARE_EXPORTED_OBJARRAY(wxANIFrameInfo, wxANIFrameInfoArray);
26WX_DECLARE_EXPORTED_OBJARRAY(wxImage, wxImageArray);
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27
28// --------------------------------------------------------------------------
29// wxANIDecoder class
30// --------------------------------------------------------------------------
31
53a2db12 32class WXDLLIMPEXP_CORE wxANIDecoder : public wxAnimationDecoder
72045d57 33{
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34public:
35 // constructor, destructor, etc.
36 wxANIDecoder();
37 ~wxANIDecoder();
38
72045d57 39
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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
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47 virtual bool CanRead( wxInputStream& stream ) const;
48 virtual bool Load( wxInputStream& stream );
49
870cf35c 50 bool ConvertToImage(unsigned int frame, wxImage *image) const;
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51
52 wxAnimationDecoder *Clone() const
53 { return new wxANIDecoder; }
54 wxAnimationType GetType() const
55 { return wxANIMATION_TYPE_ANI; }
56
57private:
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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
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71 DECLARE_NO_COPY_CLASS(wxANIDecoder)
72};
73
74
b0f76951 75#endif // wxUSE_STREAMS && wxUSE_ICO_CUR
72045d57 76
d18868bb 77#endif // _WX_ANIDECOD_H