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/////////////////////////////////////////////////////////////////////////////
// Name: imagpng.h
// Purpose: interface of wxPNGHandler
// Author: Samuel Dunn
// Licence: wxWindows licence
////////////////////////////////////////////////////////////////////////////
#define wxIMAGE_OPTION_PNG_FORMAT wxT("PngFormat")
#define wxIMAGE_OPTION_PNG_BITDEPTH wxT("PngBitDepth")
#define wxIMAGE_OPTION_PNG_FILTER wxT("PngF")
#define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL wxT("PngZL")
#define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL wxT("PngZM")
#define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY wxT("PngZS")
#define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxT("PngZB")
/* These are already in interface/wx/image.h
They were likely put there as a stopgap, but they've been there long enough
that that location trumps moving them here.
enum
{
wxPNG_TYPE_COLOUR = 0,
wxPNG_TYPE_GREY = 2,
wxPNG_TYPE_GREY_RED = 3,
wxPNG_TYPE_PALETTE = 4
};
*/
/**
@class wxPNGHandler
This is the image handler for the PNG format.
@library{wxcore}
@category{gdi}
@see wxImage, wxImageHandler, wxInitAllImageHandlers()
*/
class wxPNGHandler : public wxImageHandler
{
public:
/**
Default constructor for wxPNGHandler
*/
wxPNGHandler();
// let parent class's documentation through.
virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 );
virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true );
protected:
virtual bool DoCanRead( wxInputStream& stream );
};
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