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[wxWidgets.git] / include / wx / imagpng.h
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1/////////////////////////////////////////////////////////////////////////////
2// Name: imagpng.h
3// Purpose: wxImage PNG handler
4// Author: Robert Roebling
5// RCS-ID: $Id$
6// Copyright: (c) Robert Roebling
65571936 7// Licence: wxWindows licence
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8/////////////////////////////////////////////////////////////////////////////
9
10#ifndef _WX_IMAGPNG_H_
11#define _WX_IMAGPNG_H_
12
2ecf902b 13#include "wx/defs.h"
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14
15//-----------------------------------------------------------------------------
16// wxPNGHandler
17//-----------------------------------------------------------------------------
18
19#if wxUSE_LIBPNG
a4efa721 20
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21#include "wx/image.h"
22
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23#define wxIMAGE_OPTION_PNG_FORMAT wxT("PngFormat")
24#define wxIMAGE_OPTION_PNG_BITDEPTH wxT("PngBitDepth")
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25#define wxIMAGE_OPTION_PNG_FILTER wxT("PngF")
26#define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL wxT("PngZL")
27#define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL wxT("PngZM")
28#define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY wxT("PngZS")
29#define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxT("PngZB")
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30
31enum
32{
33 wxPNG_TYPE_COLOUR = 0,
34 wxPNG_TYPE_GREY = 2,
e8144c31 35 wxPNG_TYPE_GREY_RED = 3
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36};
37
53a2db12 38class WXDLLIMPEXP_CORE wxPNGHandler: public wxImageHandler
8f493002 39{
8f493002 40public:
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41 inline wxPNGHandler()
42 {
43 m_name = wxT("PNG file");
44 m_extension = wxT("png");
45 m_type = wxBITMAP_TYPE_PNG;
46 m_mime = wxT("image/png");
47 }
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48
49#if wxUSE_STREAMS
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50 virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 );
51 virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true );
6f02a879 52protected:
2b5f62a0 53 virtual bool DoCanRead( wxInputStream& stream );
8f493002 54#endif
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55
56private:
57 DECLARE_DYNAMIC_CLASS(wxPNGHandler)
8f493002 58};
8f493002 59
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60#endif
61 // wxUSE_LIBPNG
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62
63#endif
64 // _WX_IMAGPNG_H_
65