49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: imagpng.h
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// Purpose: interface of wxPNGHandler
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// Author: Samuel Dunn
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// Licence: wxWindows licence
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////////////////////////////////////////////////////////////////////////////
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#define wxIMAGE_OPTION_PNG_FORMAT wxT("PngFormat")
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#define wxIMAGE_OPTION_PNG_BITDEPTH wxT("PngBitDepth")
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#define wxIMAGE_OPTION_PNG_FILTER wxT("PngF")
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#define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL wxT("PngZL")
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#define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL wxT("PngZM")
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#define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY wxT("PngZS")
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#define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxT("PngZB")
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enum
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{
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wxPNG_TYPE_COLOUR = 0,
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wxPNG_TYPE_GREY = 2,
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wxPNG_TYPE_GREY_RED = 3,
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wxPNG_TYPE_PALETTE = 4
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};
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/**
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@class wxPNGHandler
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This is the image handler for the PNG format.
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@library{core}
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@category{gdi}
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@see wxImage, wxImageHandler, wxInitAllImageHandlers()
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*/
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class wxPNGHandler : public wxImageHandler
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{
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public:
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/**
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Default constructor for wxPNGHandler
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*/
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wxPNGHandler();
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// let parent class's documentation through.
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 );
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virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true );
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protected:
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virtual bool DoCanRead( wxInputStream& stream );
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};
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